68results about How to "Save filler" patented technology

The invention discloses a divided mining method for an inclined medium-thick ore body with an unstable false roof. The ore body is divided into panels along the strike, ore pillars of chambers are divided in the panels and a top pillar is reserved during stoping; an outside-vein slice drift, a layered linking roadway and a trackless stope preparation project of a chute mine are distributed on the upper panel of the ore body, and an upward air roadway is filled and is distributed at a position at the center of the ore pillars of the chambers and close to the lower panel; chambers are mined firstly and the ore pillars are mined secondly in the panels, and the chambers and the ore pillars are mined in an up-down layering manner; the stoping is performed from an ore removal crossdrift, the false roof and the ore body are mined in sequence, after ores are conveyed out by a carry-scraper, the false roof at the lower sub-layer is subjected to caving in advance by shallow holes, waste stones of the false roof are reserved in a stoping field, and the ore breaking compensation height is compensated in a layering filling manner, the stoping is performed on the lower sub-layer, and the laying caving is performed on the false roof after layering ore breaking and ore conveyed out, the operation is repeated for multiple times until the stoping field is stoped completely, and the bottom layer of the stoping field is filled to close to the back. By using the method, the operating safety, high mechanical degree, no removal of the waste stones of the false roof, low production cost, and low ore dilution loss can be realized.

The invention relates to a peanut growing control medical fertilizer wettable powder and a method for controlling growth and increasing yield of peanut plants, wherein the peanut growing control medical fertilizer wettable powder comprises plant growth regulator adjustable ring acid calcium, brassinolide, bactericide azoxystrobin, macroelement water-soluble fertilizers, microelements and assistants. The peanut growing control medical fertilizer wettable powder and the method for controlling growth and increasing yield of the peanut plants solve a premature aging phenomenon of peanuts because a large amount of growth control agents such as paclobutrazol are used, effectively prevent and control fungal diseases such as leaf spot diseases and the like and supplies nutrient substances required by legumes, and achieves to solve many problems by spraying at one time. Stem leaves are sprayed with the peanut growing control medical fertilizer wettable powder in full-bloom stages and legumes stages, thereby increasing yield 15%-20%. The peanut growing control medical fertilizer wettable powder and the method for controlling growth and increasing yield of the peanut plants are simple to prepare, save labor in operation, are obvious to control growth and increase yield, and are suitable for industrial production and application.

The invention discloses a needle-type solid-phase extraction filter. The needle-type solid-phase extraction filter comprises a shell, and the upper side and the lower side of the shell are provided with an injector nipple connector and a pintle connector which are communicated with an inner cavity of the shell respectively; an upper sieve plate, solid-phase extraction filler, a lower sieve plate and a filter membrane are sequentially arranged in the inner cavity of the shell from top to bottom, the upper sieve plate and the lower sieve plate are each provided with sieve holes of which the hole diameters range from 95 micrometers to 105 micrometers, and the particle size of the solid-phase extraction filler ranges from 110 micrometers to 130 micrometers. According to the needle-type solid-phase extraction filter, solid-phase extraction and membrane filtration are combined in one device for the first time, the operation steps are greatly simplified, the solvent and the filler are saved, and the operation cost is reduced; the needle-type solid-phase extraction filter can be suitable for different samples and solvents and is wide in application range and good in effect.

The invention discloses a deep treatment technology of high-ammonia nitrogen rare earth wet process-smelted saponifying wastewater. The technology is characterized by comprising the steps of: adding a reaction medicament into rare earth wet process-smelted extract liquor saponifying wastewater for reacting; precipitating after the reacting; separating out solid waste residue; feeding CO2-containing waste gas into clean water; leading the Ca2+ content in the wastewater to be less than 0.01mol / L; filtering; adjusting the PH value of the wastewater to be 10.5-11.0, and heating to be 55-65DEG C; feeding the adjusted wastewater into a deaminizing tower for performing negative pressure ammonia stilling type deamination; and adjusting the PH value of the wastewater to be 6-9 after the deaminizing. By matching the unslaked lime, the waste gas with the negative pressure stilled ammonia, the method can be used for removing not only various metal plasmas in the rare earth wet process-smelted extract liquor saponifying wastewater, such as F1<-> and SO4<2-> and the like, but also ignored calcium ions, so that the scaling problem of follow-up equipment is avoided, and the waste gas generated by a boiler is further treated.

The invention discloses a preparation method of an MXene-carbon aerogel / TPU composite material. The method specifically comprises the following steps: firstly, etching an MAX phase precursor by LiF / HCl to prepare a few-layer MXene solution; preparing an MXene-cellulose aerogel by using a few-layer MXene solution; then, putting the MXene-cellulose aerogel into a tubular furnace to be carbonized, and obtaining MXene-carbon aerogel; and finally, preparing a MXene-carbon aerogel / TPU composite material from the MXene-carbon aerogel and TPU particles. According to the composite material prepared by the method, the unique design of a three-dimensional structure enables electromagnetic waves to enter more easily, and incident waves are attenuated through multiple reflections and scattering in the porous structure, so that excellent electromagnetic shielding performance is obtained, and the application requirements in the fields of aerospace, electronic packaging and the like can be met.

The invention relates to a three-dimensional multilayer-hollow fiber-reinforced concrete blanket capable of achieving lap joint and belongs to the technical field of building materials. The three-dimensional multilayer-hollow fiber-reinforced concrete blanket comprises a three-dimensional hollow-multilayer fabric, a top layer packaging fabric and active dry powder concrete; one side edge or multiside edges of the three-dimensional hollow-multilayer fabric are manufactured into a U-shaped lap-joint part, and the three-dimensional hollow-multilayer fabric comprises a first layer, a second layerand a middle layer; the first layer forms a two-dimensional structure through warp and weft intertwining, and the second layer forms a three-dimensional multilayer structure through warp and weft intertwining; a plurality of grid holes are formed in the first layer, and a three-dimensional hollow structure is formed on the middle layer; vertical warps weave the first layer, the second layer and the middle layer into a three-dimensional integral structure; and the three-dimensional hollow structure is filled with the active dry powder concrete through the grid holes, and the top layer packaging fabric and a first layer package are composited into a whole. The three-dimensional multilayer-hollow fiber-reinforced concrete blanket is a composite concrete blanket which is of a reinforced structure and is high in integrality, reinforced, toughed, resistant to bending and cracking, convenient to use and capable of quickly achieving high-property and low-cost lap joint in the construction process.

The invention provides a waterproof undercarriage for a bathroom. The waterproof undercarriage comprises a waterproof base plate provided with a circle of vertical retaining side, a supporting keel laid on the waterproof base plate, and a decorative layer which is laid on upper end face of the supporting keel, wherein the upper edge of the retaining side is not lower than the top face of the decorative layer; a pipe is mounted on the waterproof base plate; a penetrating hole corresponding to the pipe is formed in the supporting keel; communicated grooves are formed between the supporting keel and the retaining side; a water catchment hopper communicated with the grooves and a penetrating bushing vertically penetrating the waterproof base plate are arranged on the waterproof base plate respectively; the periphery of the water catchment hopper and the periphery of the penetrating bushing are both in sealed connection with the waterproof base plate. The waterproof undercarriage for the bathroom has the advantages that the design is scientific, modular production is achieved, mounting and maintenance are convenient, and the quality is guaranteed.

The invention provides a preparation method of an aqueous polyurethane coating with modified kaolin as a filler. The preparation method comprises (1) dispersing 8-12g of uncalcined kaolin and 0.12-0.15g of a titanate coupling agent in 15-20ml of anhydrous ethanol, grinding the dispersion for 30-60 minutes, carrying out drying and recovering ethanol so that hydrophilic modified kaolin is obtained, (2) mixing 78-85g of aqueous polyurethane, 15-21g of modified kaolin, 0.5g of a defoaming agent and 0.5-1.5g of a thickening agent and carrying out ball milling dispersion for 30-60min to obtain the aqueous polyurethane coating with modified kaolin as a filler. The modified kaolin has a suspension rate of 85-92% in water. The preparation method has the advantages of use of the cheap filler, simple ball milling process, low energy consumption and environmental protection. By adding a high amount of hydrophilic modified kaolin to the aqueous polyurethane coating, the comprehensive performances of the coating is obviously improved. The aqueous polyurethane coating film is hard and strong in an adhesive force and has good water resistance and weatherability.

The invention relates to a method for separating and purifying flavone from wormwood through imitating moving bed chromatography. It comprises following steps: measuring 0.7- 1.0 kg dried and disintegrated wormwood, adding 10- 15kg 80% ethanol at constant temperature for water bath refluxing and extracting, filtering, combining filterate; extracting for two times, washing residuel, combining with washing liquid, defatting with ligarine, depressing and condensing and getting coarse wormwood ligarine extract; preparing feed liquid with said coarse extract and feeding it to imitating moving bed for separation and purification; dissloving said coarse extract with methanol, filtering with organic filtering membrane of 0.45 mu m and getting feed liquid for imitating moving bed with concentration being 100- 300 mg / ml; the washing liquid is mixture of methanol and water, the volumetric ratio between methanol and water is 40: 60; condensing extract liquid to saturation, reducing temperature gradually to 4- 10 Deg. C below zero, crystallizing for 5- 6 hours, filtering, washing crystal for two times, vacuum drying and getting pure wormwood flavone. The invention is characterized by increased production automation degree, improved working efficiency and production working condition.

The invention discloses a rotary low-temperature hydrogen isotope separation system and a separation method thereof, which solve the complicated construction, complicated parameter control, and high operation cost, or helium gas supply requirement, hydrogen and helium separation, and complex separation column regeneration treatment, or high cost of palladium displacement chromatogram filling material and easy failure in the prior art. The separation system includes a cryogenic tank, a reversing frame, a separation column, a raw material hydrogen-storage tank, a light isotope storage tank, a heavy isotope storage tank, a vacuum pump, and an exhaust gas storage tank. The separation method is characterized in that a separation column absorbing the raw material hydrogen to gradually separate the liquid nitrogen liquid level to desorb the hydrogen isotope to complete rearrangement of hydrogen isotope in other separation columns; and the light and heavy isotopes can be finally collected respectively from the far and near ends of the loop. The system creatively utilizes the technical principle of a simulated moving bed, the hydrogen isotope can continuously circulate in the closed loop separation loop, the heavy isotope concentration gradually decreases from the near end to the far end where the desorption occurs in the separation loop, and the concentration gradient of the heavy isotope is continuously increased with the adsorption / desorption frequency.

The invention relates to the technical field of graphene rubber composite materials, in particular to a graphene oxide modified anti-ageing agent, anti-thermo-oxidative-aging rubber containing the graphene oxide modified anti-ageing agent and a preparation method. Organosilane containing carbon-carbon double bonds and graphene oxide are subjected to a dehydration condensation reaction to obtain anintermediate product, and the intermediate product and an anti-ageing agent containing mercapto groups are subjected to a click reaction to prepare the graphene oxide modified anti-ageing agent. Thegraphene oxide modified anti-ageing agent, can effectively reduce the using amount of the anti-ageing agent and is difficult to draw out, and the anti-thermo-oxidative-aging rubber prepared from the graphene oxide modified anti-ageing agent is high in mechanical strength and high in thermo-oxidative aging resistance.

The invention discloses a device and a method for removing methanol from a methyl tert-butyl ether cracking product. The MTBE cracking product and absorption liquid undergo cross flow-counterflow contact in a multistage airflow shear cross-flow bed; under the shear action of high-speed rotating filler, cracked gas and the absorption liquid are dispersed, coalesced and redispersed for multiple times, so that multistage absorption is realized; cracking gas is introduced to a gas inlet in the side bottom of a multistage airflow shear cross flow bed; a gas outlet in the top of the multistage airflow shear cross flow bed is connected with a purified gas section; the absorption liquid is introduced to a liquid inlet in the side top of the multistage airflow shear cross flow bed; a liquid outletin the bottom of the multistage airflow shear cross flow bed is used for draining the absorption liquid; the liquid inlet is connected with a pump; the liquid outlet of the multistage airflow shear cross flow bed is connected with a liquid-rich tank; the multistage airflow shear cross flow bed comprises a liquid distributor, a liquid collecting and redistributing device, a rotor, a stator, a driving device and a casing. According to the equipment, the gas and the absorption liquid generally make counterflow contact, so that a gas-liquid mass transfer propulsion force is greater, the purification degree of the cracking gas is improved, and the concentration of methanol in the rich solution and the utilization rate of the absorption liquid are improved.

The invention discloses a preparation method of a carbonized loofah / graphene-carbon nanotube composite material. The preparation method specifically comprises the following steps: dispersing grapheneand carbon nanotubes into a polyvinyl alcohol solution, pouring the obtained mixture on rectangular loofah sponge, drying in vacuum, compacting, carbonizing in a tubular furnace to obtain a CL / GNSs-CNT composite material, mixing and stirring cyanate ester and epoxy resin, casting on the CL / GNSs-CNT composite material, and curing to obtain the carbonized loofah / graphene-carbon nanotube / cyanate ester resin composite material. The CL / GNSs-CNT / CE composite material prepared by the method has excellent electromagnetic shielding performance and certain mechanical properties, and can meet the application requirements in the fields of aerospace, electronic packaging and the like.

The invention discloses colored translucent fiberglass mainly composed of resin, a reinforcing material and an auxiliary material, wherein the resin mainly comprises following raw materials: unsaturated polyester translucent resin, epoxy resin, vinylite, thermoset acrylic resin, modified phenolic resin and flame-retardant resin; the reinforcing material is prepared by the following raw materials in parts by weight: glass fiber and twistless roving; and the auxiliary material is prepared by the following raw materials in parts by weight: an internal releasing agent and a powder filler. The colored translucent fiberglass also comprises the following raw materials in parts by weight: a coupling agent, an antioxygen agent and a light stabilizer. A glass steel pipe prepared by the colored translucent fiberglass can be used cooperatively with an LED (light-emitting diode) light bar to replace a translucent pipe with a PC (poly carbonate) material in the prior art, and various defects of the translucent pipe with the PC material are overcome. The colored translucent fiberglass is applied to the translucent pipe, good in translucent performance, strong in hardness, smooth in surface and not easy to discolor.

The invention discloses a novel power cable. The power cable comprises a conductive core material (1). An insulating layer (2) wraps the conductive core material (1). An outer sheath (3) is arranged outside the insulating layer (2). A plurality of reinforcement ribs (4) are arranged on the insulating layer (2) in a radial manner outwards. The reinforcement ribs (4) are not connected with the outer sheath (3). Filling materials (5) are loaded between the insulating layer (2) and the outer sheath (3). The reinforcement ribs (4) and the insulating layer (2) are wrapped by the filling materials (5). Because the reinforcement ribs are arranged on the insulating layer, compaction of the filling materials is not needed when the filling materials are loaded and the whole intensity of the cable can be raised. The filling materials are saved and operation is simple.

The invention discloses a circulating cooling water dispersing structure and a cooling tower with the same. The dispersing structure comprises an upper dispersing layer and one or more lower dispersing layers, wherein the upper dispersing layer and the lower dispersing layer are sequentially fixed into a cylinder-shaped protective part at intervals along a longitudinal direction from top to bottom; a body of the upper dispersing layer and a body of the lower dispersing layer both are respectively provided with a plurality of through holes; a cooling channel for circulating cooling air in the cooling tower from a low position to a high position is formed between the upper dispersing layer and the lower dispersing layer. According to the circulating cooling water dispersing structure, circulating cooling water discharged from a water distributing pipe flows through the horizontal surface of a liquid accumulation pool, rainwater is uniformly uninterruptedly generated and flows among the dispersing layers, and the cooling air is circulated in the cooling tower along the cooling channel from a low position to a high position so as to sufficiently carry out heat exchange with the circulating cooling water; because fillers are omitted, the resistance of the cooling air in the cooling tower is greatly reduced, and the circulating cooling water is unnecessary to atomize, so that the delivery lift of a water circulating pump is reduced, and the purpose of energy conservation is achieved.

The invention discloses a low-energy consumption urban sewage treatment system. The low-energy consumption urban sewage treatment system comprises an MO-BAF reactor, a BTF reactor, a multi-medium filter and a clear water tank which are sequentially connected through pipes, wherein the MO-BAF reactor, the BTF reactor and the multi-medium filter are all externally connected with a backwashing pump; the MO-BAF reactor and the BTF reactor are further externally connected with a backwashing fan and an oxygen blower; the MO-BAF reactor is sewage treatment equipment applying a micro-oxygenation technology to BAF. The sewage treatment system has a smaller aeration than that in the conventional process, and is low in energy consumption, good and stable effluent water quality, good in nitrogen and phosphorus removing effect and small in oxygen and carbon source demand.

The invention discloses a system for preparing deuterium-depleted water and deuterium-rich water by separating natural water. A core of the system is provided with a closed loop, a plurality of separation columns are sequentially connected in an end-to-end manner to form the closed loop, the system further comprises a raw material water storage tank, a deuterium-rich water storage tank, a deuterium-depleted water storage tank, a metering pump, a carburetor, pipelines and valves, and the pipelines and the valves are connected with the devices. According to the system, separation is implementedby the aid of moving bed simulation principles, raw material water vapor circularly moves in the closed loop formed by the separation columns through sequentially heating and cooling of the separationcolumns and control of a one-way valve, a constantly increased deuterium concentration gradient is acquired along with increase of cycle number, the deuterium-rich water is extracted from the top ofthe separation column at the near end of a heating loop, and the deuterium-depleted water is extracted from the bottom of the separation column at the far end of the heating loop after certain times of heating and cooling circulation of the separation columns are implemented. The system is simple in structure, convenient to control, smaller in device size and lower in construction cost, fillers are low in cost, and the natural water can be directly separated by the aid of a semi-continuous mode to prepare the deuterium-depleted water and the deuterium-rich water.

The invention relates to a graded micro-mist filler humidifier, and belongs to the technical field of air humidification. The graded micro-mist filler humidifier comprises five parts, namely a water collecting chamber, a micro-mist humidifying area, a filler humidifying area, a gas-liquid rectifying area and an exhaust chamber from bottom to top; and during operation, a circulating water pump sends water in the water collecting chamber into water distribution pipes of the micro-mist humidifying area and the filler humidifying area respectively, the water is atomized by a micro-mist nozzle and a mechanical nozzle respectively and then jetted downwards, dry air enters from an air inlet pipeline at the bottom of a main body and passes through the micro-mist humidifying area, the filler humidifying area and the gas-liquid rectifying area, heat and mass exchange occurs between the air and the water, the relative humidity is increased, the water which is not evaporated completely finally enters the water collecting chamber to form water circulation, and the humidified air is exhausted from the exhaust chamber at the top. By means of the graded micro-mist filler humidifier, the relative humidity of an outlet of the humidifier can reach 95%, the humidifying efficiency is improved, and due to the existence of the filler, liquid drops can be effectively prevented from flowing out of the outlet of the humidifier along with airflow. The graded micro-mist filler humidifier is suitable for northern areas with low air humidity and the field of wastewater evaporation treatment.

The invention provides an efficient bin type micro-electrolysis generator and belongs to the field of micro-electrolysis devices. The efficient bin type micro-electrolysis generator comprises a tank body, supporting plates are arranged in the tank body in the vertical direction in a multi-layer mode, the supporting plate of each layer is provided with a filler bin chamber, a tubular water distributor is arranged at the bottom in the tank body and arranged below the supporting plate of the bottommost layer, and a layered gas distributor is arranged in the middle in the tank body. The efficient bin type micro-electrolysis generator is characterized in that a building method of the filler bin chamber includes the steps that a nylon net is laid on the supporting plate of each layer, PVC pipes are closely and vertically placed, a honeycomb-shaped bin-type reaction region is built, or a factory is pre-divided and manufactured into honeycomb-shaped and column-shaped regions, and the honeycomb-shaped bin-type reaction region built through the PVC pipes or the honeycomb-shaped and column-shaped regions formed by pre-dividing the factory are filled with micro-electrolysis materials. The problem that filler is prone to passivation and hardening can be solved, the short flow problem can also be solved with a unique method, and the effect is very good.

The invention relates to a method to extract high-purity salidroside from ligustrum lucidum which is dry mature fruit of oleaceae ligustrum, belonging to the field of pharmacy of Chinese drugs. The method takes ethanol at certain concentration to distil material through reflux; the extract solution is filtrated, condensed and dried; the extract solution is dispersed through water and then centrifugated and the supernatant fluid is further diluted; the diluted liquid runs through a AB-8 macroporous resin column and is washed with water to get rid of the impurities and then is eluted with aqueous ethanol solution at a concentration of 50%; the liquids eluted with aqueous ethanol solution at a concentradtion of 50% are combined; the combined liquid is condensed and the condensate is processed with silica gel column chromatography and then is recrystalized, finally obtaining high-purity salidroside. The salidroside prepared with the method is large in production, high in yield and purity. The materials used in the method are easy to get, the method eases the shortage of salidroside, and part of the materials and reagents can be reused, thus reducing preparation cost.

The invention discloses a chromatographic column for analyzing multiple pesticide residues in a complex matrix and an applying method of the chromatographic column, and belongs to the field of monitoring of pesticide residues. The invention firstly discloses a chromatographic column for analyzing multiple pesticide residues in a complex matrix. The chromatographic column comprises a chromatographic column tube and filler, wherein the filler comprises the following components: anhydrous sodium sulfate, graphitized carbon and magnesium silicate. The invention further discloses a method for analyzing multiple pesticide residues in a complex matrix by applying the chromatographic column. The method comprises the following steps: (1) pre-leaching the chromatographic column by using a leaching solution; (2) adding an elution solvent in a to-be-purified sample for being dissolved to prepare a sample loading solution; (3) adding the sample loading solution in the chromatographic column treated by the step (1); and (4) eluting with the elution solvent, and collecting an eluant. The chromatographic column disclosed by the invention has a good purifying effect, is clear and distinguishable in a chromatographic peak of a target compound and high in sample recovery rate; the method is simple, convenient and rapid to operate.

The invention discloses an anti-leakage method of a corroded and perforated iron sheet gutter, and belongs to the technical field of anti-leakage. The anti-leakage method of the corroded and perforated iron sheet gutter comprises the steps of base layer cleaning, gutter reinforcement, anti-seepage and anti-corrosion treatments on the inner and outer surfaces of the gutter, the base layer cleaningcomprises the steps of treatment measures such as cleaning dirt, floated rust, and end craters, the gutter reinforcement treatment is divided into separate fine holes and large-area perforation situations and repair measures thereof, and the inner surface treatment measure of the gutter is a cold bonding construction method with wall-to-wall carpeting SBS waterproofing coils. According to the anti-leakage method of the corroded and perforated iron sheet gutter, the SBS waterproofing coil material is used, the price is much lower than that of anticorrosive paints, the service life is long, theconstruction technology is simple, immediate work engagement is facilitated, the result is quick, working time is saved, the labor efficiency is improved, meanwhile quality of anticorrosion is more easily ensured, the problem that the construction period is delayed due to the unsatisfactory anticorrosion quality is eliminated, other hidden dangers that may be caused by the replacement of the gutter to a profiled steel plate on the roof can be avoided, and the replacement cost is lowered.

The present invention discloses simulated moving bed chromatographic process for separating and purifying flavone from Chinese yam. The process includes the following steps: ultrasonically extracting flavone from Chinese yam in alcohol solution; adding hexane into alcohol solution for normal temperature liquid-liquid extraction, filtering and vacuum distilling to obtain coarse Chinese yam flavone extract; purifying the coarse Chinese yam flavone extract in a simulated moving bed; filtering with organic film; eluting with methane-water mixture; dissolving the extracted liquid in alcohol, adding water and cooling to the temperature of -5 deg.c to-12 deg.c to crystallize; filtering, water washing the crystal; stoving to obtain purified Chinese yam flavone product. The present invention has continuous production, high production efficiency and environment friendship.

The invention relates to the technical field of separation and purification of natural functional ingredients, and particularly discloses a method for purifying a capsaicin monomer by utilizing a reverse-phase resin. The method comprises the following steps: (1) carrying out preliminary purification on a crude capsaicin product obtained by virtue of an aqueous two-phase method by utilizing a macroporous resin; (2) further carrying out purification on the capsaicin by utilizing the novel reverse-phase resin; (3) crystallizing. The method has the beneficial effects that compared with reverse-phase carbon-18 silica gel fillers, the novel reverse-phase resin disclosed by the invention is low in price, low in column pressure and large in adsorption capacity; the whole process is simple and easy to operate and less in investment; meanwhile, a toxic organic solvent is not adopted, so that the production cost is greatly lowered and the purification efficiency is improved. The method is suitable for industrial production.