179results about How to "Improve the effect of energy saving and consumption reduction" patented technology

The invention discloses a planetary intelligent self-adaptive two-gear multi-cam automatic speed change driver which comprises a power device, a box body, a transmission shaft, a planetary transmission mechanism, a circular ring body axial outer conical sleeve and a circular ring body axial inner conical sleeve, wherein the transmission shaft is sleeved by the circular ring body axial outer conical sleeve which is transmitted by a helical cam pair; and the planetary transmission mechanism adopts a slow gear transmission mode and has a multi-end-face-cam transmission structure. The planetary intelligent self-adaptive two-gear multi-cam automatic speed change driver has all the advantages of existing cam self-adaptive automatic speed change devices and outputs slow gear power through the planetary transmission mechanism; by adopting the multi-end-face-cam slow gear transmission structure, the transmission efficiency is improved, the sensitivity during gear shifting can be guaranteed, sudden jerk and clamping stagnation which are caused by gear shifting can be eliminated, and the driving and riding comfortableness is improved; and furthermore, energy is saved, consumption is reduced, and the dynamic property, the economical property, the driving safety and the comfortableness of vehicles are greatly improved.

The invention provides a 390MPa-grade low-cost hot rolling structural steel plate and a manufacture method of the 390MPa-grade low-cost hot rolling structural steel plate. The 390MPa-grade low-cost hot rolling structural steel plate is prepared from the following components in percentage by weight: 0.15 to 0.20% of C, 0.05 to 0.20% of Si, 0.1 to 0.5% of Mn, 0.0005 to 0.004% of B, not greater than 0.0060% of N, 0.02 to 0.05% of Al, 0.015 to 0.025% of Ti, 0.0025 to 0.0060% of Ca, 0.12 to 0.2% of Ca / Al, and the balance of Fe. The manufacture method comprises steps as follows: melting by a converter; refining outside the converter; continuously casting; and rolling; Al is added to remove oxygen during refining, and Ti is added for fixing nitrogen, so that O is not greater than 0.002%, and N is not greater than 0.006%; boron is added for alloying before ending the refining, and an Si-Ca line is fed; a temperature in hot-charging of a continuous casting blank is more than 840 DEG C; a slab blank is processed by heating to reach the temperature of 1100 to 1180 DEG C, maintaining the temperature for 2 to 3 hours, roughly rolling at the temperature of 1020 to 1100 DEG C, wherein an intermediate blank / finished product is in thickness of 5; refining at the temperature of 950 to 1000 DEG C, wherein accumulation deformation is more than 50%; finally rolling at the temperature of 850 to 900 DEG C, cooling to reach the temperature of 500 to 600 DEG C at 6 to 20 DEG C per second after rolling, and coiling, and then cooling by air. The manufacture method is simple in technology and low in cost; and the product is high in toughness and plasticity and high in welding performance.

The invention relates to a rapid nitrogenous wastewater biological treatment process, particularly to a method for rapidly realizing short distance deep denitrogenation by SBR process. The prior short distance biological denitrogenation technique is not suitable for treating wastewater with low C / N ratio. The inventive method comprises the steps of feeding water, aerating, adding equal amount of raw wastewater, aerating, adding equal amount of raw wastewater, aerating, adding external carbon source, aerating, settling, draining, and idle running. The temperature in the overall process is controlled at 30-33 DEG C, the water dissolved oxygen concentration during nitration stage is controlled in the range of 0.8-1.2 mg / L, the mean sludge retention time in the system is 12-15 days, and the aeration amount and the denitrification time of the short distance deep denitrogenation by SBR process is controlled based on the change feature of online parameter pH value. The inventive method has the advantages of good denitrogenation effect, high degree of automation, low energy consumption, convenient operation, low cost, and suitability for treatment of wastewater with low C / N ratio.

The invention provides a hot-melt pressure-sensitive adhesive as well as a preparation method thereof and a waterproof coiled material and belongs to the technical field of waterproof coiled materials. The hot-melt pressure-sensitive adhesive can be used for solving the problem that the existing hot-melt pressure-sensitive adhesive cannot simultaneously have low-temperature bending property, good holding power and excellent temperature resistance. The hot-melt pressure-sensitive adhesive is prepared from raw materials comprising a first elastomer, first polyisobutylene, and a first C5 petroleum resin, wherein the first elastomer is polystyrene-polyisoprene-polystyrene ethylene elastomer; and the first polyisobutylene is polyisobutylene having molecular weight less than 1000 and a pour point of -30 DEG C to -4 DEG C; and first C5 petroleum resin is solid alicyclic hydrocarbon hydrogenated petroleum resin having a softening point of 100 DEG C-127 DEG C. The hot-melt pressure-sensitive adhesive provided by the invention can be applied by coating at 120 DEG C-140 DEG C and has the advantages of excellent low-temperature bending property and good adhesive force to various materials under normal-temperature conditions, holding power and excellent anti-aging property.

The invention discloses a high-efficiency environment-friendly desalted water production method. According to the method, a raw water pool, a high-efficiency double-chamber cation bed, a decarbonization device, a high-efficiency double-chamber anion bed and a desalted water tank are sequentially connected by pipelines, wherein a high-efficiency fiber filter is arranged on a connecting pipeline between the raw water pool and the high-efficiency double-chamber cation bed, an intermediate water tank is arranged at the lower part of the decarbonization device, a water outlet of the intermediate water tank is connected with a water inlet of the bottom of the high-efficiency double-chamber anion bed, a water outlet at the top of the high-efficiency double-chamber cation bed is connected with an acid regeneration system, a water outlet at the top of the high-efficiency double-chamber anion bed is connected with an alkali regeneration system, and the waste liquor in the high-efficiency double-chamber cation bed, the high-efficiency double-chamber anion bed is connected to a neutralizing water tank through a pipeline, the desalted water in the desalted water tank is delivered outside to users, the water outlet of the desalted water tank is respectively connected with the acid regeneration system and the alkali regeneration system by a pipeline. According to the technology, the high-efficiency fiber filter, the high-efficiency double-chamber cation bed and the high-efficiency double-chamber anion bed are adopted, and novel fiber packing is used, so that the internal water supplementing mode, the resin ratio and the resin filling and regeneration mode of the double-chamber bed equipment are improved.

The invention discloses a multi-cam self-adaptive multi-gear automatic transmission. The transmission comprises a box body, a power input shaft, a power output shaft, a self-adaptive variable-speed high gear assembly, a first gear assembly and a self-adaptive variable-speed n-gear assembly, wherein the output revolving speed of the n-gear assembly is lower than that of the high gear assembly and higher than the first gear assembly, and the n-gear assembly comprises a second gear, a third gear......and an nth gear. The multi-cam self-adaptive multi-gear automatic transmission has all the advantages of an existing cam self-adaptive automatic transmission, and is of a multi-cam multi-gear structure, therefore, sensitivity in the gear shifting process is ensured, jerking and jam during gear shifting are eliminated, driving comfort is improved, furthermore, energy is saved and consumption is reduced; the dynamic property, economical efficiency, driving safety and driving comfort of a vehicle are greatly improved. In addition, by means of the power output shaft, cams and the cooperative relationships among the cams, a cone clutch is locked after separation, elimination of the transmission gaps among transmission components is facilitated, transmission precision and efficiency are improved, and drive energy is saved.

The invention discloses a multi-cam self-adaptive multi-gear automatic transmission countershaft. The countershaft comprises a supporting shaft and a mechanical intelligent self-adaptive variable speed assembly located on the supporting shaft. The mechanical intelligent self-adaptive variable speed assembly comprises an overrun clutch, a torus axial outer taper sleeve, a torus axial inner taper sleeve and a variable speed elastic component. The multi-cam self-adaptive multi-gear automatic transmission countershaft is used in transmissions, has all the advantages of an existing cam self-adaptive automatic transmission, and is of a multi-cam structure, therefore, sensitivity in the gear shifting process is ensured, jerking feeling and jam feeling during gear shifting are eliminated, driving comfort is improved, furthermore, energy is saved and consumption is reduced; the dynamic property, economical efficiency, driving safety and driving comfort of a vehicle are greatly improve. In addition, by means of cams and the cooperative relationships among the cams, a clutch is locked after separation, elimination of the transmission gaps among transmission components is facilitated, transmission precision and efficiency are improved, and drive energy is saved.

The invention discloses a low-energy consumption and low-heat constant pressure system of a full-hydraulic crane for a ship, and belongs to the field of cranes. The constant pressure system consists of a hydraulic oil pump system and an electric control system, wherein a high-pressure oil pump of the hydraulic oil pump system is a constant-pressure variable oil pump with a remote pressure control function; an electric proportional overflow valve is arranged at a remote pressure control oil port end of the constant-pressure variable oil pump; working oil ports of a hydraulic motor are connected with a hydraulic control proportional reversing valve; an oil outlet of a shuttle valve in the hydraulic control proportional reversing valve obtains the pressure of a high-pressure cavity of the hydraulic motor; an outlet of the shuttle valve is correspondingly connected with a pressure sensor; the load working pressure is detected and returned in real time through the pressure sensor; and the control system automatically sets up the input of a current value of a proportional electromagnet of the electric proportional overflow valve according to the returned pressure so as to finish automatic tracking and setting of a constant-pressure variable point of the oil pump. The organic synthesis of electric and hydraulic technologies is used to effectively solve the problem of high energy consumption due to load variation in the constant pressure system; and the system is simple in composition and control, and has excellent energy-saving and consumption-reducing effects.

The invention relates to a method for realizing nitrogenous wastewater biological treatment process, particularly to a method for realizing short distance deep denitrogenation. The inventive method includes a short distance deep denitrogenation starting-up stage, a stabilizing stage and a cooling stage; and comprises the steps of feeding water, aerating, denitrifying, settling, draining, sludge discharging, and idle running. In the short distance deep denitrogenation starting-up stage, the system temperature is 25 DEG C, the mean sludge retention time is 15 days, and the number of operating periods is 90-95; in the stabilizing stage, the system temperature is 25 DEG C, the sludge retention time is 15 days, and the number of operating periods is 60-65; and in the cooling stage, the system temperature is adjusted to 18 DEG C, the sludge retention time is 15 days, and after 30-35 operating periods, the temperature is adjusted to 11 DEG C, and the sludge retention time is 20 days. The inventive method has the advantages of good denitrogenation effect, high degree of automation, low energy consumption, and capability of stable operation under low temperature conditions.

The invention relates to a continuous acidolysis process for calcium hydrogen citrate. The process mainly the following steps of: 1, respectively feeding calcium hydrogen citrate and concentrated sulfuric acid into a pulse jet reactor through pipelines for finishing an instantaneous acidolysis reaction in the reactor; 2, performing fine adjustment on the pH value of reaction solution in a crystallizer and finishing a crystallization process; and 3, finishing coarse-fine granule grading of the magma liquid in a maturing tank, and making the magma liquid enter a filtering process to finish solid-liquid separation. The process has the advantages of thorough reagent reaction, high automation degree, high acidity of acidolysis liquid, good crystal form of byproducts such as calcium sulphate, controllable granularity and the like.

The invention discloses a heat pump rectification process used for C4 separation. Separation of iso-butane, n-butane and C5 can be completed through two rectifying towers, an iso-butane and n-butane mixture is fed from a front rectifying tower, iso-butane is extracted from the top of the front rectifying tower, part of n-butane is extracted from the inside of the front rectifying tower, n-butane and C5 heavy component are extracted from the bottom of the front rectifying tower, and then enter a rear rectifying tower, residual n-butane is extracted from top of the rear rectifying tower, C5 heavy component is extracted from the bottom of the rear rectifying tower, steam at the top of the front rectifying tower is compressed, heated and pressurized through a steam compressor, the pressurizedenters a front rectifying tower reboiler to be used as a heat source to heat tower kettle material, the material is condensed into a liquid phase, after the liquid phase is cooled through the front rectifying tower, one part of the liquid phase is taken as tower top back flow, and the other part is taken as iso-butane to be discharged. According to the process, the temperature of the tower kettleof the rectifying tower can be reduced greatly, so that the energy consumption of heat pump rectification is lower; and as the content of C5 is about 2-3%, the volume of the rear rectifying tower is greatly different from that of the front rectifying tower, and the investment is far lower than the cost of saved energy consumption.

The invention provides electro slag remelting slag and a manufacturing method thereof. The remelting slag comprises the following components: 30-35% of CaO, 30-35% of Al2O3, 28-38% of CaF2 and 0.1-5% of MgO, wherein CaO / Al2O3=0.98-1.02, SiO2<=0.01%, P2O5<=0.01%, S<=0.01% and TC<=0.01%. The manufacturing method of the electro slag remelting slag comprises the following steps of: crushing raw materials including lime, alumina powder, fluorite and magnesium oxide to be less than or equal to 200 meshes; then, burdening, and uniformly mixing; next, premelting at the high temperature of 1200-1550 DEG C; and after slag is cooled, processing the slag into granules with the size of less than or equal to 40mm. The remelting slag provided by the invention is reasonable in component, simple in manufacturing process, low in fluorite content in raw materials and beneficial to the reduction of fluorine pollution. The slag is stable in the using process, stable in chemical component during remelting, smooth in ingot surface and good in energy saving and consumption reducing effects.

The invention discloses a control method of a hydraulic system, the hydraulic system comprises multiple hydraulic pumps driven by a prime motor, and each hydraulic pump drives a corresponding actuating mechanism; a first variable displacement pump in the multiple hydraulic pumps drives a first actuating mechanisms; according to the set working speed of the first actuating mechanism and the maximum displacement of the first variable displacement pump, the working speed of the prime motor is determined; according to the set working speed and the current working pressure of the first actuating mechanism, the current demanded power of the first variable displacement pump is determined; the actual input power N1 of the first variable displacement pump is equal to the difference value obtained by subtracting the actual input power of other hydraulic pumps from the output rating of the prime motor. According to the control method, the displacement of the first variable displacement pump is reduced when the current demanded power of the first variable displacement pump is higher than the actual input power, so that the current demanded power of the first variable displacement pump is equal to the actual input power N1. The invention also provides a control method of a concrete pump truck. By the adoption of the invention, the work efficiency can be improved, the load factor of the prime motor can be improved, and the effects of energy conservation and consumption reduction can be achieved.

The invention discloses a fiberizing, retexturing and recycling technology of fabric rags, in particular to a fiberizing, retexturing and recycling technology of denim fabric rags. In a treating and recycling process flow, color cotton fiber is directly produced without a bleaching process and spun after compounding cotton and mixing colors to produce dyed yarn in the same confirm color. The dyed yarn is made into chaine and is directly overdyed in a dying process to save a bottom color dying process, reduce the dye consumption, shorten production flows, save water and electricity costs, and take the favorable effects of saving energy and reducing consumption. Meanwhile, the invention can be used for producing overdyed denim fabrics of various color styles.

The invention relates to an air intake noise reduction structure for a gas water heater. The air intake noise reduction structure is characterized by comprising an outer pipe and an inner pipe which are connected in a sleeving manner. A gap between the outer pipe and the inner pipe forms an air intake channel. An inner end opening of the inner pipe is connected with an exhaust opening of an air collection cover of the water heater. An outer end opening of the inner pipe is connected with an exhaust pipeline. A first end opening of the outer pipe is connected with an air inlet of the water heater. A second end opening of the outer pipe communicates with the ambient atmosphere, a filtering screen is arranged on the second end opening, and a noise absorbing layer is arranged on the inner wall of the outer pipe. According to the air intake noise reduction structure for the gas water heater, a box body of the water heater is of a closed structure, most of noise is controlled to be conveyed out through the air intake channel, the noise passes a denoising structure such as noise reduction cotton, the filtering screen and the like in the propagation process, the noise of a fan is lowered substantially, and the noise reduction effect is remarkable; and in addition, cold air is preheated through the temperature of wasted smoke, the combustion efficiency and thermal efficiency of gas are improved, and the energy saving effect and consumption reduction effect are good.

The invention belongs to the technical field of energy saving control and discloses an energy-saving control system and a control method of classroom central air conditioner and lighting, wherein the control method includes teacher area division, collection of images, binary image processing after a background subtraction of background images and target images collected by an area division classroom; the air conditioner and the lighting are turned on automatically in the area where judging someone is present, the air conditioner and the lighting are turned off automatically where judging someone is not present; fuzzy control rules are obtained, when a deviation obtained by sampling is taken as an input of a fuzzy controller, a corresponding vacancy is obtained, and classroom temperature energy saving control is achieved through using fuzzy control algorithm. The control system includes: a video surveillance acquisition module, a temperature and humidity acquisition module and a central control room upper computer. The energy-saving control system and the control method have the advantages of an anticipated design effect achieved after an actual project running test and a certain theoretical significance and practical value in achieving an intelligent control of a building.

The invention discloses an inner rotor motor swing type self-adaption automatic variable speed drive assembly of an electric motor car. The inner rotor motor swing type self-adaption automatic variable speed drive assembly comprises an inner rotor drive motor, a slow gear transmission mechanism and a mechanical intelligent self-adaption variable speed assembly. The slow gear transmission mechanism comprises an overrun clutch and a middle speed reduction transmission mechanism. The overrun clutch transfers and outputs slow gear power through a slow gear cam meshing pair. The slow gear cam meshing pair comprises a swing type end face cam meshing pair at a minimum. The inner rotor motor swing type self-adaption automatic variable speed drive assembly has all the advantages of an existing cam self-adaption automatic variable speed device, swing cushion is achieved in the gear shifting process, good steadiness and smoothness are achieved when a variable speed elastic piece is released, sense of frustration and noise are eliminated, and further improvement of working efficiency is facilitated; transmission energy consumption generated in the gear shifting process is lowered, better energy conservation and consumption reduction effects are achieved, the service life is prolonged, and the inner rotor motor swing type self-adaption automatic variable speed drive assembly is more applicable to electric motor cars and other light and portable vehicles.

The invention discloses a restoration device of a black and odorous water body. An aerator of the restoration device is mounted in a guide flow cylinder; a garbage filtering mechanism is mounted at a rear end of a support; an outer cover is mounted at an upper end of the support; a high-pressure vortex air pump is mounted in the outer cover; a medicine adding mechanism and a microorganism culturing mechanism are mounted on a lower part of the support; a discharging hole of the microorganism culturing mechanism is communicated with the medicine adding mechanism; a medicine outlet of the medicine adding mechanism is communicated with the flow guide cylinder. According to the restoration device of the black and odorous water body disclosed by the invention, suspended garbage in water can be removed, and the oxygen dissolution efficiency and the self-cleaning capability of the water body are improved; meanwhile, sterilization and algae removal effects on the black and odorous water body can be enhanced, so that the flocculating settling capability of the water body is promoted; in addition, due to the restoration device, domestication and addition of the microorganisms can be realized; additionally, when the high-pressure vortex air pump does not work, the restoration device can play an underwater stirring effect; by utilizing anaerobic microorganisms in the water body, the nitrogen removal capability is improved, and the improvement on a self-cleaning function of the water body such as river channels and lakes can be realized.

The invention discloses an electrolytic manganese residue innocent treatment method and a device thereof, belongs to the field of common industrial solid waste treatment, and aims to solve the problems that in an existing electrolytic manganese residue innocent treatment method, soluble manganese cannot be effectively utilized and manganese residue innocent treatment is in sore need of being realized. The electrolytic manganese residue innocent treatment method can be adopted to effectively realize innocent treatment on electrolytic manganese residues, and effectively solves the problem that electrolytic manganese residues are greatly accumulated and pollute the environment. The electrolytic manganese residue innocent treatment method is adopted to treat electrolytic manganese residues, sothat equipment investment cost is relatively small, energy consumption is relatively low, and treatment cost and operation cost can be effectively reduced. Meanwhile, the electrolytic manganese residue innocent treatment method is short in process flow, is stable in operation, is high in reliability, can meet industrial and large-scale production and application needs, has a relatively high application value and a relatively good application prospect in treating electrolytic manganese residues, and is worthy of being popularized and applied on a large scale. Besides, products treated by the electrolytic manganese residue innocent treatment method are stored and transported conveniently, use is wide, dosage is great, and economic values are relatively high.

The invention relates to an oxygen control slag system for an electroslag furnace and a preparation method thereof, and belongs to the technical field of metallurgical smelting. In order to solve theproblems that the deoxidation capacity of the existing premelting slag is weak and the cost is high, the invention provides the oxygen control slag system for the electroslag furnace. The oxygen control slag system for the electroslag furnace is prepared from the following components in percentage by weight: 30 to 32 percent of self-made premelting slag, 43 to 45 percent of Al2O3, 20 to 22 percentof CaO and 3 to 5 percent of MgO, wherein the self-made premelting slag has the SiO2 content of less than or equal to 1.5 percent through desilicication treatment, and also contains 2 to 3 percent ofaluminum, so that a good deoxidation effect can be achieved; and the CaO, the Al2O3 and the MgO can further improve the deoxidation capacity of the slag system. The oxygen control slag system for theelectroslag furnace provided by the invention is low in cost, simple in preparation process, good in energy saving and consumption reducing effects, and stable in remelting chemical components. The oxygen control slag system provided by the invention is utilized for melting steel, which can make the internal quality of an electroslag steel ingot uniform, the surface of a cast ingot smooth, and detection indicators excellent.

The invention discloses an external rotor motor cyrtoconic swing type self-adaption automatic variable speed drive assembly of an electric motor car. The external rotor motor cyrtoconic swing type self-adaption automatic variable speed drive assembly comprises a drive motor, a box body, a transmission shaft, a slow gear transmission mechanism and a mechanical intelligent self-adaption variable speed assembly. An annular sunk portion is formed in the axial end face of an outer ring of an overturn clutch of the slow gear transmission mechanism, an inner ring is arranged in the annular sunk portion in a rotating and matched mode, and a meshing space is formed between an outer circle of the inner ring and the inner wall of the radial outer side of the annular sunk portion. The slow-gear transmission mechanism outputs power and locks a variable speed elastic element through a swing type end face cam meshing pair. By means of the automatic variable speed drive assembly, the problem that the transmission error is amplified on the overturn clutch is avoided, the overall stability of the overturn clutch is guaranteed, stable supporting is still guaranteed after long period operation of a speed changer, operation noise is lowered, operation comfort is guaranteed, transmission efficiency is improved, and thus energy consumption is lowered; the service life is further prolonged, operation accuracy is improved, and the automatic variable speed drive assembly is applicable to overloading and high-speed use environments.

The invention discloses a method and a device for vaporizing hydrogen chloride in tail gas in polycrystalline silicon production. The method is characterized in that: low-temperature hydrogen chloride liquid separated from the top of a hydrogen chloride separating tower exchanges heat with high-temperature chlorosilane liquid output from the bottom of the hydrogen chloride separating tower through heat exchange equipment, so that the low-temperature hydrogen chloride liquid absorbs the heat and is completely vaporized, the temperature of high-temperature chlorosilane is reduced, and chlorosilane serving as low-temperature absorption liquid enters an absorption tower to continuously absorb the hydrogen chloride in the tail gas. The device comprises a hydrogen chloride condensation storage tank, a heat exchanger and a demister, wherein a chlorosilane storage tank is arranged below the heat exchanger and connected with the heat exchanger. Heat quantity and cold quantity in a tail gas recovery system are mutually converted, so that energy is fully utilized and saved.

The invention discloses an impeller type counter-flow drier. The impeller type counter-flow drier comprises a rack, the rack is provided with an air draft system, a feeder feeding system, a first dynamic cooling and drying cabin, a second dynamic cooling and drying cabin and a hot wind cabin; a hermetic shell body is arranged on the side of the rack, hot wind used for drying and cooling is blew into the shell body by the hot wind cabin; the hot wind penetrates through the second dynamic cooling and drying cabin and the first dynamic cooling and drying cabin in sequence from top to bottom, the moisture, heat and temperature of dried material are discharged through the air draft system finally; the first dynamic cooling and drying cabin and the second dynamic cooling and drying cabin are internally provided with impeller type rotary feeders. According to the impeller type counter-flow drier, the material drying and cooling effect is good, the production output is large, the power consumption is low, and the energy-saving and consumption-reducing effect is achieved; the operation and maintenance of the drier are simple, convenient and rapid, and the cost of post-use and maintenance is low; the cooling and drying effect is very good, the power consumption is very low, and the use effect and popularization significance in industry are very good.

The present invention discloses a limestone-gypsum wet flue gas desulfurization synergist, which comprises, by weight, 70-90 parts of an organic acid salt, 5-20 parts of an organic anhydride, and 5-15 parts of a surfactant. According to the present invention, the type of the component of the desulfurization synergist is simplified while the obtained synergetic desulfurization effect is good; due to the excellent and stable desulfurization effect, under the same conditions, the used raw materials are less, the production cost of the enterprise is low, and the performance price ratio is high; and the sodium diacetate accounting for the absolute proportion in the desulfurization synergist components is the internationally-recognized efficient, safe and inexpensive food additive, and has characteristics of good safety and good environmental protection during the production process, the storage and transportation process, the use process and other processes.

The invention relates to a billet temperature calculation method for a heating furnace, and belongs to the technical field of heating furnace optimal control. The method calculates the billet surfaceheat flow through the radiation exchange area, and comprises the following steps: S1, dividing a heating furnace into a plurality of model sections along the furnace length direction; s2, calculatingthe radiation exchange area among the furnace walls, the steel billets and the furnace gas of each section firstly, then calculating the derived radiation coefficient through the radiation exchange area, and then obtaining the steel billet surface heat flow; and S3, calculating the temperature distribution of the section of the billet by adopting a differential method. The surface heat flow of thebillet is calculated by adopting a radiation exchange area method, the influence of a black body material is introduced into radiation heat flow calculation, and the method is more suitable for modelcalculation of a heating furnace with the black body material.

The invention belongs to the technical field of refractory materials, and particularly discloses low thermal-conductivity high temperature glue and a preparation method thereof. The low thermal-conductivity high temperature glue is prepared by synthetic mullite with the particle size being less than 0.074mm, alumina micro powder with the particle size being less than 0.074mm, silica powder with the particle size being less than 0.045mm, nano-ATO with the particle size being less than 20nm, and silica sol according to the mass percent. The preparation method comprises the following steps of co-grinding the synthetic mullite, the alumina micro powder, the silica powder and the nano-ATO until the average particle size is less than 0.02mm, emitting, and then adding the silica sol to stir uniformly. The product provided by the invention can be used for binding metal and metal, nonmetal and nonmetal, metal and nonmetal materials within the temperature of 800 to 1600 DEG C, and is wide in application range. The product uses the synthetic mullite as main raw materials, so that the heat conductivity coefficient of the product can be greatly reduced; meanwhile, the added nano-ATO powder body and the silica sol are melted at high temperature to form nanoscale sealed pores, so that the heat conductivity coefficient of the product is further reduced; the product has a high-temperature binding function, meanwhile, the heat insulation effect is obvious, and the energy-saving and consumption-reducing effect is improved.

The invention discloses an electroslag remelting slag system and an electroslag remelting 40CrNiMoA low-hydrogen control method. The slag system adopted in electroslag remelting comprises components including, by weight percent, 20%-30% of Al2O3, 5%-8% of SiO2, 3%-5% of MgO and the balance CaF2. The alkalinity of the electroslag remelting slag system is 0.7-0.9. Slag materials, electrodes and argon are subjected to drying treatment, and the source of hydrogen in the electroslag process is greatly reduced. Aluminum powder needs to be evenly added in the electroslag remelting process, and the aluminum powder adding speed is 1.5-3 g / min. According to the low-hydrogen control method, the hydrogen reduction effect is extremely good, operation is simple, and energy consumption and cost are low.The hydrogen content of the prepared remelting 40CrNiMoA alloy is low to 3 ppm, and the surface is free of white spots. The method is easy to control and low in cost. The properties such as strength,tenacity, abrasion resistance and corrosion resistance are shown excellently.

The invention discloses an automatic pendulous self-adaptive speed change driving assembly of an external rotor motor of an electric motorcycle. The automatic pendulous self-adaptive speed change driving assembly comprises a driving motor, a box body, a transmission shaft, a slow-gear transmission mechanism and a mechanical intelligent self-adaptive speed changing assembly. The slow-gear transmission mechanism comprises an overrun clutch and a middle speed reducing transmission mechanism. The overrun clutch transfers and outputs slow-gear power through a slow-gear cam engagement pair. The slow-gear cam engagement pair at least comprises one pendulous end face cam engagement pair. The automatic pendulous self-adaptive speed change driving assembly has all the advantages of an existing automatic cam self-adaptive speed changing device, swing buffer is achieved in the gear shifting process, good stability and smoothness are achieved when an elastic speed reducing piece is released, the abruption feeling and noise are eliminated, and the working efficiency is further improved; the transmission energy consumption in the gear shifting process is reduced, a better energy conservation and consumption reduction effect is achieved, the service life is prolonged, and the automatic pendulous self-adaptive speed change driving assembly is more applicable to light vehicles such as the electric motorcycle.

The invention relates to a method for recovering energy of tail gas of an air-blow fermentation tank by using a turbo-expander. The tail gas in a fermentation tank enters an exhaust pipe through a cyclone and is discharged after silencing by a muffle, and stirring the fermentation tank by a reducer driven by a motor. The method is characterized in that two parallel loops are connected with the exhaust pipe of the fermentation tank; a heat exchanger connected with one loop is connected with the turbo-expander; the other hoop is connected with the turbo-expander and the muffle at both ends; and the turbo-expander is connected with the reducer through a shaft coupler. The pressure and the temperature for gas discharge are reduced, and the waste heat of the liquid and the gas in the production is recovered, thus reasonably utilizing the energy resource. The control system has simple structure, convenient arrangement, good energy saving effect, low equipment cost and low investment.

The invention relates to fishing equipment applicable to a floating object gathering area at the front side of a floating object interception line, in particular to energy-saving type floating objectfishing equipment. The energy-saving type floating object fishing equipment comprises bases, a pulling rope and a fishing mechanism. The pulling rope is transversely arranged on water flow through thebases at the two sides of the water flow. The fishing mechanism is arranged on the pulling rope and comprises a propeller mechanism, a traveling mechanism and a fishing net mechanism. The propeller mechanism drives the traveling mechanism under the effect of the water flow, so that the fishing mechanism moves along the pulling rope. The fishing net mechanism is arranged at the position, at the upper side of the pulling rope, of the traveling mechanism and used for fishing floating objects. By means of the energy-saving type floating object fishing equipment, the floating objects at the floating object interception line can be cleaned through pulling force of the water flow. The energy-saving type floating object fishing equipment has the beneficial effects that the structure is simplified; cost is low; and the fishing equipment is convenient to use. In addition, the water flow serves as power of the fishing equipment, so that power for driving the fishing mechanism to travel on the pulling rope is provided; energy conservation and consumption reduction are effectively achieved; and fishing cost is saved.