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3592results about How to "Won't clog" patented technology

Composite microporous membrane used as lithium ion battery diaphragm as well as preparation method and application thereof

The invention discloses a composite microporous membrane used as a lithium ion battery diaphragm as well as a preparation method and application thereof. The composite microporous membrane is prepared by the following steps of: steeping a polyolefin porous framework membrane in a modified liquid a and carrying out radiation crosslinking to obtain a modified framework membrane; preparing a modified liquid b, steeping the modified framework membrane in the modified liquid b and adding a sol-gel reaction catalytic agent to carry out a sol-gel condensation reaction; and immersing the modified membrane in a phase transforming agent solution, carrying out phase conversion to form a membrane and then drying to obtain a high-performance polymer/inorganic composite microporous membrane. In the invention, the preparation process is simple and the industrialization is easy to realize; the obtained composite microporous membrane has high air permeability, good electrolyte-favoring performance andhigh temperature resistance, a composite layer and the framework polyolefin membrane have good adhesion strength and cannot be separated when being placed in a lithium ion electrolyte solution with very good adhesion and without power-dropping and shedding. By means of the product of the invention, a series of defects in the prior art can be overcome.
Owner:河南惠强新能源材料科技股份有限公司

Microsphere type embolic agent and preparation technology thereof

The invention provides a microsphere embolic agent, which is an elastic microsphere formed by the crosslink polymer of the functionalized macromolecules with the biocompatibility, and the particle size of the microsphere ranges from 1 Mum to 1500 Mum. The preparing technology includes the steps as follows: in a covalent link, linking a crosslinkable micromolecules with an acrylic acid structure on the polyvinyl alcohol, polyethylene glycol or polysaccharide macromolecules, forming the functionalized macromolecules; after that, the functionalized macromolecules and the monomer of the 2- acrylamide-2-methyl propanesulfonic acid undertakes opposite suspension polymerization, obtaining the crosslink polymeric microsphere embolic agent. The embolic agent has comparatively large retractility and elasticity, whose particle size is controllable and has perfect dispersiveness; moreover, the raw material is non-toxic and at the same time has good biocompatibility and stability. The preparing technology is a real chemosynthesis technology, whose material and preparing process does not produce any virus pollution, according with various requirements of the international embolic agent, which can replace various import and domestic expensive embolic agent products and is extensively applicable to various surgeries in the interventional radiology field.
Owner:SUZHOU HENGRUI CALLISYN BIOLOGICAL MEDICINE TECH CO LTD

Same floor draining joint for building

The invention relates to a same floor draining joint for a building, in particular to a same floor draining joint for a toilet, which consists of an upper vertical pipe draining port, a lower vertical pipe draining port and at least two transverse pipe draining ports; the upper vertical pipe draining port is communicated with the upper end and the lower end of the lower vertical pipe draining port; the at least two transverse pipe draining ports are staggered in position and are arranged between the upper vertical pipe draining port and the lower vertical pipe draining port; the orientation of the inlet of at least one of the transverse pipe draining ports is equal to or nearly equal to the orientation of the upper vertical pipe draining port, and the orientation of the inlet of at least one of the transverse pipe draining ports forms an included angle of 30-100 degrees with the orientation of the upper vertical pipe draining port. The same floor draining joint is rational and scientific in structure, and is capable of realizing the same floor draining and the same floor maintenance when the draining joint is adopted in the same floor draining of the non-falling plate or falling plate; the draining is more safe; the water is not easy to accumulate in the falling plate layer even the way of the falling plate is adopted, and the accumulated water is safely and completely discharged, so as to avoid the foreign smell in the room.
Owner:KUNMING QUNZHIYING TECH

Feeding method and device for hole protecting pipe for soft coal seam gas extraction hole

The invention relates to a feeding method for a hole protecting pipe for a soft coal seam gas extraction hole. The feeding method is characterized in that an epoxy resin adhesive is used for filling sieve pores of the hole protecting pipe before the hole protecting pipe is fed into a drill hole, air with a certain pressure is pressed into the hole protecting pipe in the process of feeding the hole protecting pipe into the drill hole, the air flows into the drill hole through a vent hole arranged at the top end of the hole protecting pipe, and high-speed air currents discharge coal dusts from an orifice along the hole protecting pipe and a gap of the wall of the drill hole. After the hole protecting pipe is fed into the bottom of the hole, an epoxy resin adhesive dissolving agent is injected into inner holes of the hole protecting pipe for dissolving the expoxy resin adhesive in the sieve pores so as to extract the gas. The feeding method is convenient in operation, can overcome the problem that the hole protecting pipe is difficult to feed into the drill hole due to the residual coal dusts in the gas extraction hole and local hole collapse, and has the advantages of long feeding distance of the hole protecting pipe, thereby ensuring the higher concentration and high flow of the soft coal seam gas extraction. The feeding method is particularly suitable for soft coals and very soft coal seams in which hole collapse easily occurs.
Owner:CHINA UNIV OF MINING & TECH

Scented straw cat litter made by wheat straw and method thereof

ActiveCN104969866AWill not affect healthDoes not affect fishy tasteAnimal housingBiotechnologyCause blockage
The present invention discloses a scented straw cat litter made by wheat straws and a method thereof. The scented cat litter is manufactured by weight percentage by the following materials of 40-60 parts of wheat straws with a smashing mesh number being 40-70, 40-60 parts of wheat shorts, 1-3 parts of Sesbania gelatine powder, 0.5-2 parts of salt, 0.1-0.5 parts of a bio-enzyme preparation, and 10-25 parts of water. The method comprises mixing the bio-enzyme preparation, the salt and the water with stirring; mixing and stirring the wheat straw powder, the wheat shorts and the Sesbania gelatine powder to be uniform; comprehensively mixing the above raw materials with stirring; sending the mixed materials by a feed screw to a roller couple extrusion pelleting machine for roll extrusion to form pellets; transmitting the formed material pellets to a crushing and screening all-in-one machine for screening; and drying, cooling and packaging the screened pellets at normal temperature. The cat litter provided by the present invention has a strong water absorption capability and deodorization capability, can be flushed into the sewer without causing blockage, is convenient to clean, can be used as a fertilizer for grass and flowers, and is saving in using amount, high in cost performance, small in dust in a production process, and low in production cost. Products of different shapes can be produced by replacing pressing rollers of different patterns, thereby achieving multiple uses in one machine.
Owner:王洪恩

Preparation technology for microspheric embolization agent

The invention relates to a preparation technology for a microspheric embolization agent. The preparation technology is used for preparing elastic microspheres cross-linked and polymerized by functionalized macromolecules with biocompatibility, wherein the grain range of the microspheres is 1-1500mu m. The preparation technology comprises the following steps that: a cross-linkable micromolecule with a crylic acid structure is connected on a polyvinyl alcohol, polyethylene glycol or polyose macromolecule in form of a covalent bond to form a functionalized macromolecule; and reversed phase suspension polymerization is conducted to the functionalized macromolecule and a 2-acrylamide-2-methylpropanesulfonic acid monomer to prepare cross-linked and polymerized microspheric embolization agent. The embolization agent has the advantages that the flexibility and the elasticity are high, the grain is even and is controllable, the dispersity is good, the raw materials are nontoxic and the biocompatibility and the stability are good. The preparation technology is a pure chemical synthesis technology, no virus pollution is caused to the raw materials and the preparation process, the requirements on international embolization agents are satisfied, and the embolization agent can substitute for all kinds of imported or domestic expensive embolization agent products and can be widely used in surgeries in the field of interventional therapy.
Owner:SUZHOU HENGRUI CALLISYN BIOLOGICAL MEDICINE TECH CO LTD

Obstruct explosion-proof material and manufacturing technique thereof

The present invention relates to an explosion-barrier material which is made of kerfed and expanded aluminum alloy foil grid, and has a honeycomb-shaped vesicular structure. The chemical components have weight percentages that silicon is 0.3-0.6 percent, iron is 0.3-0.7 percent, copper is 0.1-0.2 percent, manganese is 0.8-1.8 percent, zinc is 0.1 percent, titanium is 0.1-0.2 percent, and aluminum is residual. The present invention also relates to the manufacture process of the explosion-barrier material. The process has steps that the aluminum alloy ingot is rolled to be aluminum alloy foil, cut to be kerfed aluminum foil with a joint cutter, and shaped and wound, then tempering treatment is performed to the shaped and wound aluminum foil with the tempering temperature of 220-240 DEG C and the tempering time durance of 8-10 hours, the aluminum foil after the tempering is discharged, cut and rolled, and then pulled and expanded to be the aluminum foil grid, and the aluminum foil grid is folded and molded to be the grid shaped explosion-barrier material. The explosion-barrier material of the present invention has the advantages of good explosion-proof performance, good flexibility, high tensile strength, and high elongation ratio.
Owner:JIANGSU AMPUTE EXPLOSION PREVENTION TECH

Spraying and dust-removing system

The invention relates to a spray dedusting system, a dedusting tower is erected on a circulating deposition tank, an opening is opened at the top of the dedusting tower, the dedusting tower is connected with a smoke pipe, the inner wall of the dedusting tower corresponding to the upper part of the exit end of the smoke pipe is provided with a water baffle, the dedusting tower above the water baffle is internally provided with a plurality of spray heads, the bottom end of the dedusting tower corresponding to the lower of the exit end of the smoke pipe is provided with a water sealing device inserted in the circulating deposition tank, the spray heads are connected with the water outlets of a spray pump by pipelines, the water inlets of the spray pump are arranged in the circulating deposition tank, a quality regulating water storage tank is arranged beside the circulating deposition tank, a quality regulating mild base block layer is paved on the bottom of the quality regulating water storage tank, a non-water tight gland layer is paved on the quality regulating mild base block layer, a water supply device used for supplying water to the quality regulating water storage tank from the circulating deposition tank is arranged between the circulating deposition tank and the quality regulating water storage tank, and a water supplementing device for supplementing water to the circulating deposition tank from the quality regulating water storage tank is arranged between the circulating deposition tank and the quality regulating water storage tank.
Owner:WUXI XUEJIANG ENVIRONMENT ENG EQUIP

Laser weld-bonding method of bipolar plate of fuel cell

The invention relates to a laser weld-bonding method of bipolar plates of a fuel cell. The method combines a bonding process and a laser welding process to connect the bipolar plates of the fuel cell, namely a normal-temperature curing adhesive is used to bond welding areas of the bipolar plates of the fuel cell, and then the laser welding is carried out to finish the connection of the bipolar plates of the fuel cell. Compared with the prior art, the laser weld-bonding method has the advantages that: because an adhesive bonding method is adopted to bond the bipolar plates of the fuel cell tightly, the phenomenas of sealing-off and welding seam breakage caused by assembling gaps in the laser welding are eliminated, the laser welding quality is improved, and the welding seam is high in mechanical strength and is corrosion resistant; a bond layer can evaporate rapidly under the high-heat input of a laser beam, the requirement of the bonding position is reduced; because the normal-temperature curing adhesive is adopted, the secondary heat input caused by high-temperature curing is avoided; and due to the introduction of the bonding process, the designs of a welding clamp, a welding path and welding parameters can be more flexible and simpler, so that the laser weld-bonding method is easy in large-scale production.
Owner:SHANGHAI JIAO TONG UNIV +3

Mine dust concentration sensor based on electrostatic induction

ActiveCN103454195AAddresses issues with reduced sensitivityHigh sensitivityParticle suspension analysisComputer moduleEngineering
The invention provides a mine dust concentration sensor based on electrostatic induction. The mine dust concentration sensor comprises a metal support, a metal shielding cover, an insulating tube, a left sealing ring, a right sealing ring, metal electrodes, a fan outer cover, a fan and a circuit box, wherein the metal shielding cover and the insulating tube are buckled through the left sealing ring and the right sealing ring, a sealed shielding space is formed between the insulating tube and the metal shielding cover, the insulating tube forms a straight-through type air channel, the fan outer cover is fixedly connected at the right end of the metal shielding cover, the fan is positioned in the fan outer cover, three metal electrodes are connected through metal connection plates and arranged in a groove formed in the inner wall of the insulating tube, the metal support is connected with the ground in a shielding mode, the circuit box above the metal shielding cover is provided with a control circuit module, and the induction signals of the metal electrodes can output dust concentration monitoring signals through the control circuit module. The mine dust concentration sensor effectively solves the problem that the flexibility of the sensor is reduced due to dust adhesion, dust accumulation and dust distribution change on the surface of a probe, can well overcome the defects of an optical sensor and is high in antijamming capacity, high in flexibility and simple in structure.
Owner:SHANDONG UNIV OF SCI & TECH

Biomass three-section type entrained flow bed gasification technology with function of waste heat utilization

The invention discloses a biomass three-section type entrained flow bed gasification technology with the function of waste heat utilization, which relates to the technical field of energy chemical technology. The gasification technology is realized in a way that: carbon powder, pyrolysis gas and oxygen, which are generated after the biomass is pyrolyzed, enter an entrained flow bed to obtain synthetic gas through gasification, and the energy of the gasification waste heat is transferred to water by a heat exchanger of a gasifier, thereby producing superheated steam. The gasifier of the entrained flow bed is divided into a high-temperature entrained flow bed section, a high-temperature heat exchanger section and a low-temperature heat exchanger section, wherein the high-temperature entrained flow bed section adopts a dry ash extraction entrained flow bed gasification technology, and the temperature of the synthetic gas at the outlet is 1280-1320 DEG C; at the high-temperature heat exchanger section, the temperature of the synthetic gas at the inlet is 1280-1320 DEG C, the temperature at the outlet is 580-600 DEG C, a shock chamber and a high-temperature superheater are arranged in the high-temperature heat exchanger section, and the synthetic gas enters the shock chamber at the temperature of 1000-1100 DEG C and leaves at the temperature of 700-800 DEG C; and at the low-temperature heat exchanger section, the temperature of the synthetic gas at the inlet is 580-600 DEG C, the temperature of the synthetic gas at the outlet is 220-230 DEG C, and a low-temperature superheater and a coal economizer are arranged in the low-temperature heat exchanger section. The invention is used for high-efficiency gasification of biomass.
Owner:ZHONGJIEHUAN BEIJING ENERGY TECH
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