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Garnett machine
The opening machine comprises a pair of frame wall opposite to each other. One end of the pair of frame wall is higher than the other end. A pre-opening mechanism composed of the first roller, the second roller and coarse opening roller is set at the high end of the frame wall, and the fine opening mechanism composed of the third roller, the fourth roller and fine opening roller is set at the low end of the frame wall. A rolling curtain is set on the frame wall and between the said two opening mechanisms. A cotton collection bucket is set between the pair of frame wall and is communicated with the opening roller. A cotton-discharging mechanism is set the enclosure plate jointed to the end part of the frame wall. It also comprises a first motor driving the first roller and the second roller to rotate, a second motor driving the third roller, the fourth roller and the rolling curtain to move and the third motor driving the coarse opening roller and the fine opening roller to move. Advantages: saved cotton-feeding mechanism and reduced processing and using cost.
Owner:JIANGSU YINGYANG NONWOVEN MASCH CO LTD
Garnett machine
InactiveCN100368612CLow costIntensiveFibre cleaning/opening by toothed membersCarding machinesMotor driveEngineering
Owner:JIANGSU YINGYANG NONWOVEN MASCH CO LTD
Synthesis method of taurine
InactiveCN101717353AFew reaction stepsSimple craftSulfonic acid preparationChemical synthesisSynthesis methods
The invention relates to a synthesis method of taurine, belonging to the technical field of organic chemical synthesis. The synthesis method comprises the following steps of: reacting the oxirane with ammonium sulfite to obtain taurine ammonium salt, and acidating and refining to obtain the taurine. The reaction steps of the technical scheme are less, the taurine ammonium salt can be obtained just by one-step reaction between the oxirane and the ammonium sulfite, the crude taurine can be obtained by acidating, and the taurine is obtained by refining, therefore, the synthesis method has simple process and can embody the economical efficiency and the cleaning production.
Owner:JIANGSU YUANYANG PHARMA
Micro-grid frequency modulation control method with lowest power generation cost
InactiveCN105140936AShortened time scaleEliminate hierarchical control system designSingle network parallel feeding arrangementsPower oscillations reduction/preventionElectric power systemEngineering
The invention provides a micro-grid frequency control method with the lowest power generation cost, and belongs to the technical field of electric system operation and control. The method comprises the steps that a respective power generation cost function and a power generation cost micro increasing rate function are established; active power output limit constraints of distributed power supplies and energy constraints of energy storage devices are set; and the synchronization speed regulator of a power generator and the controller of an inverter are regulated to perform primary frequency modulation, secondary frequency modulation is performed after a time interval, system frequency is acquired and active power set value total regulating amount of each time of secondary frequency modulation is calculated, the active power set value total regulating amount is allocated for all the distributed power supplies or the energy storage devices participating in frequency modulation, the active power set value regulating amount and the original set values are summated to act as a new active power set value, then one time of frequency modulation is performed again and stable system frequency can be maintained. Utilization rate of renewable energy is enabled to be the maximum by the method, and consumption capacity of micro-grid renewable energy can be enhanced. Besides, realization is convenient and control is easy.
Owner:GUIZHOU POWER GRID INFORMATION & TELECOMM +1
Method and device for treating organic polluted soil by two-section-type indirect thermal desorption technology
ActiveCN104874593AReduce consumptionEasy temperature controlContaminated soil reclamationThermal desorptionPollution
The invention discloses a method and a device for treating organic polluted soil by a two-section-type indirect thermal desorption technology. The method comprises the following steps: carrying out predrying and dehydrating moisture in organic polluted soil at low temperature so as to enable the moisture content to be reduced to be less than 5%; heating the predried organic polluted soil in a thermal desorption device indirectly so as to obtain altithermal soil and organic pollutant gas; directly introducing the organic pollutant gas into a combustion heating device to be combusted together with fuels at high temperature so as to achieve the complete innocent treatment of organic pollutants; cooling the high-temperature soil indirectly by a hot soil cooling device, recycling the altithermal soil to sense heat so as to preheat air for the fuel combustion for the combustion heating device, thereby obtaining raw materials for building materials for further deep processing. The technology is simple; the investment is low; the running management expense is low; the energy source efficiency is high; tail gas pollution and any other environment problem are not generated; the technical economy is feasible, and the energy conservation and environment-friendly benefit is obvious; the concept of clean production and circulation economy is shown fully.
Owner:ZHONGKE DINGSHI ENVIRONMENTAL ENG CO LTD
Antistatic phenolic moulding plastic
InactiveCN103554829AMeet strict anti-static requirementsImprove antistatic performanceFiberGlass fiber
The invention discloses antistatic phenolic moulding plastic, and belongs to the technical field of thermosetting plastics. The antistatic phenolic moulding plastic is prepared from the following raw materials in parts by weight: 20.0-45.0 parts of phenolic resin, 4.0-8.0 parts of curing agent, 0.2-2.0 parts of curing accelerator, 1.0-3.0 parts of lubricating agent, 5.0-30.0 parts of glass fiber, 10.0-20.0 parts of lignocellulose, 1.0-10.0 parts of conductive carbon black, 15.0-30.0 parts of nano inorganic filler, 0.5-2.0 parts of coupling agent and 5.0-20.0 parts of graphite. Through reasonable dosages of the nano inorganic filler, the coupling agent, the graphite and the conductive carbon black, the antistatic phenolic moulding plastic can realize ideal improvement on the antistatic effect, so as to meet antistatic requirements of packing materials for mineral electric equipment products and flammable and combustible materials; due to reasonable dosage of the glass fiber, the antistatic phenolic moulding plastic has obviously improved mechanical strength and shows wear resistance; the antistatic phenolic moulding plastic is cheap in selected materials, and can meet industrial high-efficiency amplified production requirements.
Owner:常熟东南塑料有限公司
Double-layer flow guide material storage type die head device of blowing machine
The invention relates to a double-layer flow guide material storage type die head device of a blowing machine, and belongs to the technical field of blowing machines. The double-layer flow guide material storage type die head device comprises a driving mechanism, a material storage barrel, a die sleeve mechanism, a material storage core, a bush die mechanism and a material pushing ejection rod fixing disc, wherein the material storage barrel is provided with a material storage barrel cavity, and a material storage barrel cover is arranged at the upper portion of the material storage barrel cavity; the die sleeve mechanism is connected with the material storage barrel; the material storage core and a material storage barrel fixed connection cover are fixed; the bush die mechanism is connected with a center pull rod and a bush die guide connecting mechanism at the same time; and the material pushing ejection rod fixing disc is arranged in the material storage barrel cavity. The double-layer flow guide material storage type die head device is characterized by further comprising a plastic melt double-layer flow guide mechanism arranged in the material storage barrel cavity; a pair of material guide pipes are inserted into the material storage barrel cover, the middle portion of each of the pair of material guide pipes is provided with a material guide pipe material guide groove, material leading pipes are arranged in material guide pipe cavities, and a plastic melt leading-in hole is formed in the side wall of the material storage barrel cover; and the material pushing ejection rod fixing disc is provided with material leading pipe fixing holes, and the lower ends of the material leading pipes and the material pushing ejection rod fixing disc are fixed. The structure of the material storage core is simplified; the quality of a hollow plastic container obtained after huffing molding is guaranteed; and the working efficiency of the blowing machine is improved.
Owner:SUZHOU TONGDA MACHINERY
Maize straw charcoal, method for utilizing maize straw charcoal to remove triclosan from water and application
InactiveCN105854810AGuaranteed removal rateEmbody economyOther chemical processesWater contaminantsTriclosanResource utilization
The invention relates to a maize straw charcoal, a method for utilizing the maize straw charcoal to remove triclosan from water and application. The maize straw charcoal is prepared according to the following steps: (1) drying and smashing; (2) anaerobically carbonizing for 120-180min by adopting temperature programming under the condition of 500-700 DEG C; (3) cooling in a furnace to room temperature; and (4) soaking in hydrochloric acid, washing with deionized water till the eluate is neutral, drying till constant weight is achieved, grinding and filtering through a 60-mesh sieve. The maize straw charcoal is taken as an absorbent and is put into the triclosan-containing water for absorbing and removing triclosan, so that the problem of difficulty of treating the antibiotics in water is solved. The environment problem caused by the burning of straws is also solved, the wastes are turned into wealth, the resource utilization of maize straw is realized and the maize straw charcoal has high economic benefit and social benefit.
Owner:SOUTH CHINA INST OF ENVIRONMENTAL SCI MEP
Dried edamame quality evaluation model and construction method
InactiveCN103955626AQuantitatively reflect the qualityQuality reflectionSpecial data processing applicationsVitamin CQuality level
The invention relates to a dried edamame quality evaluation model and a construction method. The dried edamame quality evaluation model comprises main physical and chemical indicators which test and influence the dried edamame quality, wherein a principle component analysis and correlation analysis method is adopted to screen core indicator parameters of the dried edamame quality evaluation, a principle component normalization method is adopted to determine the weight coefficient of the core indicators, the dried edamame quality evaluation model is constructed on the basis as: the quality score (Z)=1.12*a*+0.64*hardness-0.76*crispness- 0.87*soluble solid content+0.52*vitamin c content+0.35*output rate, and the quality level of dried edamame is effectively judged according to the model. The method is high in standardized degree, accurate, objective, simple, convenient and easy to operate in the actual operation.
Owner:JIANGSU ACAD OF AGRI SCI +1
Low gas-oil-ratio oil reservoir gas logging evaluation method
ActiveCN106437691AImprove exploration effectEmbody scienceBorehole/well accessoriesAnalysis dataGas oil ratio
The invention relates to the technical field of oil development oil reservoir engineering, in particular to a low gas-oil-ratio oil reservoir gas logging evaluation method. By adoption of the low gas-oil-ratio oil reservoir gas logging evaluation method, the problems that the interpretation coincidence rate is low, understanding of oil and gas reservoirs is not clear, and oil-water relation analysis is unknown during exploration and development are solved, and the exploration effect is improved. The low gas-oil-ratio oil reservoir gas logging evaluation method comprises the following steps that firstly, oil well data are obtained; secondly, parameter quality is controlled, specifically, a gas logging quality control curve template is established, gas logging data are input into the quality control curve template, and the gas logging data with the quality control ratio being within the range of 0.8-2.0 are selected to serve as analysis data meeting quality requirements; thirdly, parameters are selected, specifically, a relation between the gas logging data and an oil-water-gas layer is discovered through a grey correlation degree analysis method; and fourthly, the parameter research and oil reservoir gas logging evaluation method is established. A two-dimensional linear crossplot-gas logging interpretation chart is established, and different interpretation conclusion ranges are marked out.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1
Method for preparing acrylate printing adhesive
InactiveCN102108110AGood flexibilityImprove wet rubbing fastnessEster polymer adhesivesDyeing processAdhesiveAmmonia
The invention discloses a method for preparing an acrylate printing adhesive, which is prepared by the following steps: (1) weighing a common monomer, a special monomer, an emulsifier, an initiator and deionized water in a mixing ratio; (2) mixing 40 to 60 percent of deionized water weighed in the mixing ratio, 40 to 60 percent of emulsifier weighed in the mixing ratio and 40 to 60 percent of initiator weighed in the mixing ratio to prepare liquid I; (3) mixing the common monomer and the special monomer, which are weighed in the mixing ratio, with 60 to 40 percent of deionized water, 60 to 40 percent of emulsifier and 60 to 40 percent of initiator, stirring and emulsifying to prepared liquid II; (4) dripping the liquid II into the liquid I; (5) after the liquid II is dripped, stirring, keeping temperature for reaction and obtaining an initial product of the acrylate printing adhesive; and (6) dripping ammonia water into the initial product of the acrylate printing adhesive to regulating the pH value of the initial product of the acrylate printing adhesive to 6.5 to 7.5, and filtering to obtain the acrylate printing adhesive product. The adhesive prepared by the method has high performance, and the environmental-protection problem in the synthesis and use processes of the adhesive is solved.
Owner:金华金龙助剂厂
Nonlinear economic model prediction control method applied to fan
The invention discloses a nonlinear economic model prediction control method applied to a fan. Firstly, the mechanism modeling is performed based on a fan principle; a generator rotor angle speed, a wind wheel rotor angle speed, a shaft twisting angle, a tower offset and a tower deviation speed are selected as state quantities of a fan model; a generator torque and a pitch angle are used as control quantities of the fan model; the generator rotor angle speed and a generator power are used as outputs of the fan model; a fan nonlinear model is expressed in a state space equation form; then, a nonlinear prediction model of the fan is dispersed; representative economic indexes are selected to form economic target functions to embody economic performances of a wind power generation system; constraint conditions of the state quantities, the control quantities and the outputs are set; and finally, optimization functions are used for solution to obtain an optimal control quantity. The method solves the problems of weak tracking prediction control effect and difficult achievement of the economy in the prior art.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING)
Moving bed type thermal method distillation crystallizer
InactiveCN102698463AGood removal effectIncrease surface areaSolution crystallizationDistillationHypertonic saline
The invention discloses a moving bed type thermal method distillation crystallizer. The crystallizer comprises a box body, an intake pipe, a water injection pipe, an exhaust pipe and a condenser; the inner part of the box body is provided with a crystallizing chamber, wherein the top of the crystallizing chamber is connected with a feed port arranged on the top part of the box body, the bottom part of the crystallizing chamber is connected with a discharge port arranged on the bottom part of the box body, and a cavity of the crystallizing chamber is full of light filler balls having adsorbing performance; the hypertonic saline injected from the water injection pipe forms a moving bed by using the filler balls as carriers and with the help of the gravity function of the filler balls, and is then subjected to the heat exchanging with the hot air or exhaust fume in the crystallizing chamber in order to separate the saline adhered on the surfaces of the filler balls so as to obtain salt and distilled water. The moving bed type thermal method distillation crystallizer provided by the invention does not scale in the distillation process and is capable of processing all hypertonic saline, so as to achieve zero discharge; with the adoption of waste fume as a heat source, the energy consumption and the running cost are low.
Owner:SHOUGANG CORPORATION
Method for refining pyromellitic anhydride by solvent
A method for refining pyromellitic dianhydride via solvent belongs to the preparation technical field of pyromellitic dianhydride, which comprises adding crude pyromellitic dianhydride, dehydrating agent and decolorant into a reaction vessel, heating, mixing and reacting, after the reaction, filtering immediately, cooling and crystallizing the filtered liquor in a crystallization vessel, filtering the crystallized materials to separate and remove crystallization mother liquor to obtain pyromellitic dianhydride crystal containing mother liquor, drying and cooling to obtain refined final product of pyromellitic dianhydride, wherein the crystallization mother liquor removed by filtering is circulated. The invention has the advantages that the invention can improve yield of PMDA, save dehydrating agent and decolorant, save energy and reduce energy consumption, the product PMDA has high purity, the organic impurties in product as trimellitic anhydride, pyromellitic acid dianhydride, pyromellitic acid dianhydride monoanhydride and pentamethyl anhydride are reduced, thereby reaching the purity demand for polymerizing electronic grade polyimide film.
Owner:常熟华虞环境科技有限公司
Refrigerating and heating energy-saving system with heat source tower
ActiveCN101915479AGuaranteed uptimeImprove efficiencyRefrigeration safety arrangementHeating and refrigeration combinationsBusiness efficiencyEngineering
The invention discloses a refrigerating and heating energy-saving system with a heat source tower. The refrigerating and heating energy-saving system with the heat source tower comprises the heat source tower, a screw-rod heat-pump cold and hot water unit and a solution condensing device, wherein the heat source tower is provided with a water inlet pipeline and a water outlet pipeline; the screw-rod heat-pump cold and hot water unit is connected between the water inlet pipeline and the water outlet pipeline; and the water inlet pipeline and the water outlet pipeline between the heat source tower and the screw-rod heat-pump cold and hot water unit are connected with the solution condensing device. The refrigerating and heating energy-saving system with the heat source tower of the invention has the advantages of capability of realizing refrigerating, heating and water heating functions, achieving an energy efficiency ratio (EER) of between 5.2 and 6.2, saving 35 percent of energy than the conventional technology and running continuously, high efficiency, no pollution, capability of running normally at the outdoor temperature of between 10 DEG C below zero and 45 DEG C, suitability for large-size industrial and civil buildings and relevant coal mine industry, small floor area, simple and convenient installation, safe and reliable running and capability of realizing unattended operation.
Owner:江苏辛普森新能源有限公司
Method for enriching efficient biphenyl degradation flora by using accelerator SRpf
ActiveCN103436460ALow costRaw materials are easy to getBacteriaMicroorganism based processesDiversity indexFlora
The present invention discloses a method for enriching efficient biphenyl degradation flora by using an accelerator SRpf, wherein the accelerator SRpf is added to an enrichment culture process of biphenyl degradation bacterial, continuous acclimation is performed to obtain an enrichment liquid with an efficient biphenyl degradation performance, and bacterial growth, flora diversity and a biphenyl degradation rate can be significantly increased with addition of the accelerator SRpf, wherein specifically bacterial growth is increased by 30-50%, a biphenyl degradation rate is increased by 20-70%, and a Shannon's diversity index is increased to 2.10-2.34 from 1.56-1.70. The accelerator SRpf has functions of VBNC flora recovery and bacterial growth promotion, such that the accelerator SRpf can be provided for enriching efficient biphenyl degradation flora and promoting growth of other organic pollutant degradation flora so as to provide a safe, cheap and efficient method for exploration of potential degradation flora in PCB, PAH and other pollution environments.
Owner:ZHEJIANG UNIV
Knitting needle of computer flat knitting machine
A needle component of a computer cross-knitting machine belongs to the knitting structure technology field of computer cross-knitting machine, which is composed of a needle, a pin bottom and a selective pin bottom. The lower part of the needle close to the middle is opened with a the first gap in which the entrance is extended with the first flange, and the lower surface of the rear end part of the needle is in the formation of the first titled face. The end of one end of the pin bottom is in the formation of the second flange, and the upper part of the adjacent part of the second flange is opened with a second gap. The upper surface of the middle part of the pin bottom is in the formation of the second titled face matched with the first titled one. The other end of the pin bottom is in the formation of an upper needle butt and a lower needle butt, and the side of the upper needle butt is extended with an actuating flange. Therefore, the invention has the advantages that the size of the entire computer cross-knitting machine is reduced to facilitate the installation and the saving of costs. The nose has a simple structure, which is not easy to wear. Thus the density of clothing can be remained stable.
Owner:JIANGSU JINLONG TECHNOLOGY CO LTD
Magnetic meso-porous silicon, preparation method of magnetic meso-porous silicon, magnetic meso-porous silicon adsorbent, preparation method and application of magnetic meso-porous silicon adsorbent
InactiveCN103721689AAvoid reunionEasy to operateOther chemical processesWater contaminantsSilicic acidFerrous ammonium sulfate
The invention discloses magnetic meso-porous silicon. A preparation method of the magnetic meso-porous silicon comprises the steps of reacting by taking tetraethoxysilane as a silicon source, ammonium ferrous sulfate as an iron source and an F-127 block polymer as a template, separating to obtain a meso-porous compound, adding an oxidant, reacting, filtering, drying and firing to obtain the magnetic meso-porous silicon which is even in magnetic distribution. The invention also provides a magnetic meso-porous silicon adsorbent. A preparation method of the magnetic meso-porous silicon adsorbent comprises the steps of performing polymeric oxidizing reaction through the magnetic meso-porous silicon, ammonium persulfate and phenylamine under an acid condition, then washing, filtering and drying to obtain the magnetic meso-porous silicon adsorbent; and the preparation method is simple and saves the reaction time. The invention also provides an application of the magnetic meso-porous silicon adsorbent in removal of heavy metal ions in water; and the magnetic meso-porous silicon adsorbent is strong in adsorption force of heavy metals and large in adsorption capacity.
Owner:HUNAN UNIV
Process for purifying byproduct sodium sulfate from pyraclostrobin
InactiveCN106986358AAvoid destructionLow costAlkali metal sulfite/sulfate purificationWater/sewage treatment by heatingHydrazine compoundWater quality
The invention discloses a process for purifying byproduct sodium sulfate from pyraclostrobin. The process particularly includes steps of feeding wastewater with the sodium sulfate into MVR (mechanical vapor recompression) evaporators; stirring the wastewater for 1-2 hours; purifying the byproduct sodium sulfate by the aid of MVR systems; feeding generated wastewater to sewage treatment plants and treating the wastewater. The wastewater with the sodium sulfate is generated when p-chlorophenyl hydrazine is synthesized. The process has the advantages that useful products in the wastewater from the pyraclostrobin can be recycled, accordingly, utilization value of the wastewater can be increased, deterioration of the water quality due to the wastewater can be reduced, the wastewater treatment cost can be saved, designs for the process for purifying the byproduct sodium sulfate from the pyraclostrobin can be optimized, and requirements on the designs for the process for purifying the byproduct sodium sulfate from the pyraclostrobin can be met.
Owner:ANHUI GUANGXIN AGROCHEM
Forged material conveying device for stamping steel balls
PendingCN108326225AFast reciprocating sliding speedImprove delivery efficiencyEngine componentsHandling devicesStructural engineeringSteel ball
The invention discloses a forging material conveying device for stamping steel balls, and belongs to the technical field of auxiliary equipment for steel ball stamping and forming. The conveying device comprises a sliding table machine frame, a sliding table, a pneumatic sliding table driving mechanism, a forging material clamping and releasing mechanism, a forging material pushing and feeding mechanism, a forging material pushing mechanism and a clamping driving mechanism, wherein the sliding table is arranged on the sliding table machine frame, the pneumatic sliding table driving mechanism is arranged on the right side of the sliding table machine frame and is connected to the sliding table, the forging material clamping and releasing mechanism is arranged on the sliding table, the forging material pushing and feeding mechanism is fixed to the sliding table machine frame at a position corresponding to the left side of the sliding table machine frame, the forging material pushing mechanism is arranged on the pneumatic sliding driving mechanism in a state corresponding to the forging material pushing and feeding mechanism and is further connected to the sliding table machine frame,and the clamping driving mechanism is fixed to the front side or rear side of the sliding table machine frame and extends to the position below the sliding table to correspond to the forging materialclamping and releasing mechanism. The conveying device has the advantages that the reciprocating sliding speed of the sliding table is high, and the forging material conveying efficiency can be improved; the reliability of the forging material clamping and releasing mechanism, arranged by taking the sliding table as a carrier, for clamping and releasing a forging material can be guaranteed; the economic performance of equipment can be embodied, and the daily use, inspection and protection cost can be lowered; and the automatic effect is ideal.
Owner:CHANGSHU FEIFAN METALWORK
Livestock ketone body secondary supporting leg device
InactiveCN101057601AMeet the secondary leg support requirementsAvoid splittingSplitting instrumentsEngineeringMechanical engineering
The invention relates to a secondary leg-supporting device for livestock, belonging to slaughtering facilities technique, comprising one framework fixed on the chain and lower guide rail on marching type conveyor, one acting vat, the vat body of said vat is connected with chain on the framework, the vat column is hinged with swinging arm, swinging arm is hinged on framework, the other end of swinging arm is equipped with transfer guide rail, said transfer guide rail is corresponding to the break on one-time leg-supporting hook rail of marching type conveyor. It is characterized in that it adds framework, acting vat, swinging arm equipped with transfer rail and break forming one-time leg-supporting hook rail on original marching type conveyor, then it can meet demand of secondary leg supporting, and avoids saw pinching during splitting saw, it needs no additional secondary leg-supporting device, which not only saves operating workers, but also plays effect of original conveyor.
Owner:CHANGSHU SLAUGHTERING EQUIP SET
Double-layer diversion material storage die head device for blow molding machine
Owner:SUZHOU TONGDA MACHINERY
Roadbed and method for controlling differential settlement of road-bridge transition section of high-speed railway
ActiveCN110904740ALight weightLow costRoadwaysRailway tracksReinforced concreteGeotechnical engineering
The invention relates to a roadbed for controlling differential settlement of a road-bridge transition section of a high-speed railway. The roadbed comprises a roadbed body and a transition roadbed arranged between the roadbed body and a bridge abutment, a roadbed surface layer is paved above the transition roadbed; foundation reinforcing piles which are arranged in the transverse direction and the longitudinal direction and extend into an underground soil layer are arranged below the transition roadbed . The lengths of the foundation reinforcing piles are sequentially reduced from the centerline of the roadbed to two sides; the transition roadbed comprises a first foam concrete body and second foam concrete bodies laid on the top face and the bottom face of the first foam concrete body respectively. A layer of trapezoidal reinforced concrete body is also arranged between the top surface of the first foam concrete body and the second foam concrete body; the first foam concrete body and the trapezoidal reinforced concrete body are matched with each other to form a contact transition surface with a stepped structure with the roadbed body. Compared with the prior art, the roadbed hasthe advantages that differential settlement of a road and bridge transition section is controlled, construction is convenient, and the like.
Owner:TONGJI UNIV
Thermostat for nuclear-magnetic-resonance magnet
ActiveCN104237817AEasy to operateEasy to manufactureMeasurements using magnetic resonanceNMR - Nuclear magnetic resonanceLiquid medium
The invention discloses a thermostat for a nuclear-magnetic-resonance magnet, and belongs to the technical field of nuclear-magnetic-resonance facilities. The thermostat comprises a tank, a liquid medium circulation tank, a magnet thermostatic tank, a circulating pump and a semiconductor refrigeration mechanism. A magnet-thermostatic-tank fitting hole is formed in a top plate of the tank. The liquid medium circulation tank is arranged in a tank cavity and is fixed with a base of the tank cavity. A heating element and liquid medium return pipes are arranged in a cavity of the liquid medium circulation tank. A heat-exchange conductive plate is arranged in the length direction of the left tank wall of the liquid medium circulation tank. The magnet thermostatic tank is fixed with the top plate of the tank. Liquid medium leading-back pipes are arranged in a jacket cavity of the magnet thermostatic tank. A liquid medium leading-in connector is arranged at the bottom of the jacket cavity. The circulating pump is fixed with the base. A liquid inlet of the circulating pump is communicated with the cavity of the liquid medium circulation tank. A liquid outlet of the circulating pump is connected with the liquid medium leading-in connector. The semiconductor refrigeration mechanism is fixed with the liquid medium circulation tank, and contacts with the heat-exchange conductive plate to enable the magnet to be in an ideal thermostatic state. The thermostat is convenient to operate and produce, small in size and economical.
Owner:徐州大彭中药有限公司
Automatic bag clasping device for open bags
ActiveCN105621090APrevent excessive deformationGuaranteed stabilityConveyorsGripping headsEngineeringMechanical engineering
The invention discloses an automatic bag clasping device for open bags, and belongs to the technical field of packaging machinery. The automatic bag clasping device comprises a machine frame, and the machine frame comprises a front supporting beam and a rear supporting beam; a front bag-clasping moving trolley guide mechanism is arranged on the upward side of the front supporting beam, and a rear bag-clasping moving trolley guide mechanism is arranged on the upward side of the rear supporting beam; the two ends of a bag-clasping moving trolley are matched with the front bag-clasping moving trolley guide mechanism and the rear bag-clasping moving trolley guide mechanism; a bag-clasping moving trolley drive acting cylinder is arranged on a machine frame cross beam; a traction arm linkage mechanism is hinged to the middle of the bag-clasping moving trolley; a front traction arm is connected to the front of the traction arm linkage mechanism, and a rear traction arm is connected to the back of the traction arm linkage mechanism; a traction arm drive acting cylinder is arranged on the bag-clasping moving trolley; a front bag-clasping plate swing mechanism is connected to the front traction arm, and a rear bag-clasping plate swing mechanism is connected to the rear traction arm; a front bag-clasping tile-shaped plate is connected to the front bag-clasping plate swing mechanism, and a rear bag-clasping tile-shaped plate is connected to the rear bag-clasping plate swing mechanism; a front bag opening clamping mechanism is arranged on the top of the front bag-clasping plate swing mechanism, and a rear bag opening clamping mechanism is arranged on the top of the rear bag-clasping plate swing mechanism and corresponds to the front bag opening clamping mechanism. According to the automatic bag clasping device, the stability and the reliability of the bag-clasping operation are guaranteed; the structure is simplified; sealing at subsequent positions can be carried out smoothly; material waste is avoided.
Owner:CHANGSHU SANHE PRECISION MACHINERY & TECH CO LTD
Method for regenerating catalyst for synthesizing o-chloroaniline
InactiveCN107570215AImprove regeneration efficiencyImprove recycling ratesOrganic-compounds/hydrides/coordination-complexes catalystsMetal/metal-oxides/metal-hydroxide catalystsEconomic benefitsMegasonic cleaning
The invention discloses a method for regenerating a catalyst for synthesizing o-chloroaniline. The method for regenerating the catalys specifically includes the following steps of: filtering a palladium-carbon catalyst out in a filter which is provided with a metal sintered tube and arranged in a final-stage kettle of four-stage series hydrogenation kettles, introducing the palladium-carbon catalyst into an alkaline washing kettle, conducting alkaline washing on the palladium-carbon catalyst with a hot alkaline solution, introducing the alkaline-washed palladium-carbon catalyst into an ultrasonic cleaner to perform ultrasonic cleaning, introducing the ultrasonic-cleaned palladium-carbon catalyst into a water washing kettle for water washing, putting the water-washed palladium-carbon catalyst into an oven for drying and water removal, and then raising the temperature and calcining the dried palladium-carbon catalyst to obtain the dried and regenerated palladium-carbon catalyst. According to the method for regenerating the catalyst for synthesizing the o-chloroaniline, the useful palladium-carbon catalyst can be effectively recycled, the content of o-phenylenediamine obtained throughthe catalysis of the palladium-carbon catalyst is 98% or above, the synthesis cost is saved, and the economic benefit is improved; besides, the method and the process design of the regeneration of the catalyst used for synthesizing the o-chloroaniline are optimized, and requirements of the industrial design are met.
Owner:ANHUI DONGZHI GUANGXIN AGROCHEMICAL CO LTD
Method of preparing nitrochlorobenzene by adopting vacuum concentration process
InactiveCN109096116ALower synthesis costPromote positive progressOrganic compound preparationNitro compound preparationNitrophenol productPollution
The invention discloses a method of preparing nitrochlorobenzene by adopting a vacuum concentration process. The production method specifically comprises the following steps: carrying out a reaction on Chlorobenzene and nitric acid under the action of sulfuric acid to generate a nitrochlorobenzene mixture; settling and separating the nitrochlorobenzene mixture; concentrating waste sulfuric acid generated by nitrification in vacuum to be applied mechanically; neutralizing, washing and distilling the acidic nitrochlorobenzene mixture; drying the neutral nitrochlorobenzene mixture to remove chlorobenzene and water and the like, and obtaining a coarse product nitrochlorobenzene mixture; and then separating p-nitrophenol and o-nitrophenol products and meta-position oil rich in m-nitrochlorobenzene and high boiling point organic matter waste liquor by means of a multi-time crystallizing separating method. The nitrified waste acid is concentrated and dehydrated in vacuum, so that the concentration of sulfuric acid exceeds 80%, the sulfuric acid and nitric acid are prepared to a mixed acid to be recycled, the economical benefit is improved and the purity of the product is improved. In theproduction process of the nitrochlorobenzene, the waste acid and the high boiling point organic matter waste liquor are recycled, the green, environmentally-friendly and pollution-free theory is met,and the economical benefit and practicality are reflected.
Owner:ANHUI DONGZHI GUANGXIN AGROCHEMICAL CO LTD
Biological improving fertilizer special for saline-alkali soil and preparation method thereof
ActiveCN102219614BHigh in nutrientsHigh organic contentSoil lifting machinesSolid waste disposalAlkali soilOrganic matter
Owner:天津洪发生态科技有限公司
Method and device for the anaerobic fermentation of organic material
ActiveCN101200693AEmbody economySure to killOrganic chemistryGas production bioreactorsBiotechnologyEngineering
Owner:ORGANIC WASTE SYST
Die opening and closing device for plastic product molding machine
ActiveCN106827313ASimple structureImprove molding efficiencyDomestic articlesHollow articlesCoil springDrive shaft
A die opening and closing device for a plastic product molding machine comprises a die carrier base, a left movable die carrier, a right movable die carrier, a left clasping arm, a right clasping arm and a clasping arm driving mechanism, and is characterized in that the clasping arm driving mechanism comprises a motor, a reduction gearbox, a swing arm, a driving shaft, a coil spring box, a coil spring foot positioning shaft sleeve, a limit ring, a pull rod and a coil spring box stirring block; the motor works together with the reduction gearbox; the left end of the swing arm is placed on the driving shaft in a sleeving manner, a guide block is arranged in the middle of the front side of the swing arm, and the right end of the swing arm is hinged to the left end of the pull rod; the right end of the pull rod is hinged to the lower end of the right clasping arm; the driving shaft is supported at the lower end of the left clasping arm; the coil spring foot positioning shaft sleeve is positioned in the coil spring box; a coil spring is arranged in the coil spring box; a coil spring box cover is arranged at the open part of the front side of the coil spring box; a limit ring seat is arranged on the front side surface of the coil spring box cover; a notch is formed in the limit ring seat; the limit ring is arranged in a limit ring seat chamber; a limit block is arranged on the limit ring; the coil spring box stirring block is fixed on the rear side of the coil spring box and matched with the guide block. According to the die opening and closing device, the die opening and closing speed is increased, and the molding efficiency is improved; a die locking device is not required to be additionally assembled; the structure is simplified.
Owner:SUZHOU TONGDA MACHINERY
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