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69results about How to "Increase the direct contact area" patented technology

Preparation method for coated silicon/carbon/graphite composite negative electrode material

ActiveCN106025222AIncrease incidenceReduce the first charge and discharge efficiencyCell electrodesSecondary cellsNitrogenSlurry
Disclosed is a preparation method for a coated silicon/carbon/graphite composite negative electrode material. The preparation method comprises the steps of adding silicon powder and a dispersing agent into deionized water, wherein the D50 of the silicon powder is 1.2-1.5[mu]m; performing ball milling for 2-10h, and screening 100-mesh slurry; adding graphite, an organic carbon source and a binder into the deionized water, stirring and mixing uniformly, and enabling the obtained mixture to be mixed with the slurry, and continuously to stir the mixture uniformly; performing spray drying to obtain a silicon/carbon/graphite precursor; performing thermolysis on the silicon/carbon/graphite precursor under the protection of nitrogen or argon; and after screening, mixing the precursor with a coating agent, and performing ball milling for 1-3h, and carrying out heat treatment at a temperature of 400-600 DEG C under the protection of nitrogen or argon for 2-6h to obtain the coated silicon/carbon/graphite composite negative electrode material. According to the preparation method for the coated silicon/carbon/graphite composite negative electrode material provided by the invention, the initial charge-discharge efficiency of the material can be improved.
Owner:INST OF RESOURCES UTILIZATION & RARE EARTH DEV GUANGDONG ACAD OF SCI

Air-flow type drying oven for drying coating layer of radiate material and blast nozzle parts thereof

The invention discloses an air flow drying oven for drying the coating of a radiate material and a blast nozzle part thereof. The blast nozzle part is a case, the lower part of which is provided with an air inlet. The middle of the upper part of the case is provided with a guide roller groove, and the case is provided with an inner cavity at the lower part and a left air duct and a right air duct which are positioned at the left side and the right side of the upper part and directly communicated with the inner cavity. An air outlet of the left air duct is a left parallel air flow blast nozzle which inclines towards the left, and the air outlet of the right air duct is a right parallel air flow blast nozzle which inclines towards the right. When the blast nozzle part is used in the drying oven, the left and right blast nozzles accelerate the flow flowing to the left and right sides of the blast nozzle part, and a left horizontal supporting plate and a right horizontal supporting plate lead the air flow to form parallel wind which is parallel to the radiate material, thus increasing the direct contact area between the wind and the radiate material, leading the radiate material surface to be heated evenly and the heat exchange between the parallel hot wind and the radiate material to be more sufficient, improving the heat exchange efficiency and having better drying quality due to even heating.
Owner:CHANGZHOU YONGSHENG NEW MATERIALS EQUIP CO LTD

Nano-photocatalyst and preparation method thereof

The invention discloses a nano-photocatalyst. The nano-photocatalyst is prepared from, by weight, 30-35 parts of nanometer titanium dioxide, 5-10 parts of nano microcrystalline cellulose colloid (nano microcrystalline cellulose accounts for 2-3.5% by weight), 2-6 parts of adhesive, 1-3 parts of a titanate silane coupling agent, 1-3 parts of anion surfactant, 5-10 parts of dispersant and 80-85 parts of deionized water, wherein the nanometer titanium dioxide is porous anatase type nanometer titanium dioxide, the particle size of the nanometer titanium dioxide is 3-5 nm, and the nano microcrystalline cellulose in the nano microcrystalline cellulose colloid is of a net structure. The nano-photocatalyst and the preparation method thereof are environmentally friendly and free of pollution, the particle size of the porous anatase type nanometer titanium dioxide is 3-5 nm, the specific surface area is large, the nano microcrystalline cellulose of the net structure connects nanometer titanium dioxide to the surface, the distribution range of the nanometer titanium dioxide is expanded, the contact area between the nanometer titanium dioxide and a substrate is increased, and the purifying effect is improved. By means of the nano-photocatalyst, harmful gas degradation is conducted on newly-built shopping malls, large-scale office buildings, newly-decorated dwelling houses and the like, and harmful substances are converted into active substances such as [O] and [HO].
Owner:浙江蓝民环保科技有限公司

Hot rolling spray cooling method for large cylinder

The invention relates to a hot rolling spray cooling method for a large cylinder, which is characterized in that an upper spray device and a lower spray device are manufactured; after a large cylinder is rolled, the cylinder is clamped by an upper roller and a lower roller, so that the cylinder is rotated by the driving of frictional force; additionally, the lower spray device extends into the cylinder, and the upper spray device is arranged outside the cylinder; the length of cooling water pipes on the upper spray device and the lower spray device is regulated, so that a connecting line of all of the cooling water pipes on each spray device near the wall end of the cylinder forms a semicircle shape which is concentric with the cylinder; and additionally, the quantity ratio of the cooling water pipes on an upper spray collecting plate and a lower spray collecting plate of the upper spray device and the lower spray device and the flow ratio of cooling water are regulated, so as to cool the inner and outer surfaces of the large cylinder at the same cooling speed after rolling. The hot rolling spray cooling method has the advantages that the problem of uneven cooling of the traditional cylinder heat treatment is solved, the cooling efficiency is increased, the coefficient of heat transfer of the surface of the cylinder is increased on the initial stage of cooling, and the surface quality of the cylinder is greatly increased.
Owner:YANSHAN UNIV

Zigzag tower plate

The invention discloses a zigzag tower plate. The zigzag tower plate comprises a tower plate body; the longitudinal cross-section of the tower plate body is zigzag in shape; the tower plate body comprises inclined plates, V-shaped bottom parts, and reverse-V-shaped top parts; upswept sector plates are symmetrically arranged on the two sides of each V-shaped bottom part; gaps are formed between the upswept sector plates and a corresponding V-shaped bottom part; the inclined plates are provided with a plurality of valve blocks; the valve blocks are bended upward toward the tower plate body; only one end of each valve block is fixed with the corresponding inclined plate; the middle part of each valve lock is separated from the corresponding inclined plate; the middle part of each valve block is raised upward; the other end of each valve block is hanged above the corresponding inclined plate; and the reverse-V-shaped top parts are provided with naturally droopy drainage rope. The zigzag tower plate body is capable of prolonging passing time of gas and liquid, so that mass transfer time is prolonged; the upswept sector plates and the valve blocks are capable of lengthening path of gas and liquid through the tower plate body, prolonging contact mass transfer time of gas with liquid, and increasing mass transfer efficiency.
Owner:NANTONG SUTONG SEPARATION ENG & TECH

Photo-biological sewage purification device

The invention discloses a photo-biological sewage purification device and belongs to the technical field of micro-algae culture. The photo-biological sewage purification device comprises a suspensionbase, a shaft frame, a light source device and a fixing device, wherein the suspension base can be suspended on water, a culture solution chamber for holding a culture solution inoculated with microalgae is formed inside the suspension base, a turnover cover is arranged at the upper end of the culture solution chamber, and a water inlet with a valve is formed in the bottom of the culture solutionchamber; the shaft frame is vertically mounted in the middle of the upper end surface of the suspension base, a plurality of umbrella-shaped culture units are light guide plates forming a umbrella shape and are sequentially arranged on the shaft frame from big to small according to a height increasing shape, and a horizontal liquid storage groove is formed in the top of the shaft frame and is connected with a submerged pump positioned in the culture solution chamber through a liquid inlet pipe; the light source device is an LED lamp and is arranged along the shaft frame; the fixing device comprises a plurality of fixing cables, and the fixing cables are used for fixing the suspension base in the water. According to the photo-biological sewage purification device disclosed by the invention,microalgae culture is combined with microalgae domestication, sewage treatment, biological carbon fixation and microalgae recovery, so that the integration and the automation of the microalgae culture are realized.
Owner:GUANGXI UNIV

Toxicity-reducing processing technology of traditional Chinese medicine decoction pieces

InactiveCN110496153AExpansion of the outer wall structureLoose outer wall structurePlant ingredientsToxic materialSemen
The invention provides a toxicity-reducing processing technology of traditional Chinese medicine decoction pieces. The traditional Chinese medicine decoction pieces are semen strychni, the toxicity-reducing processing technology includes the following steps that (1) soaking, raw semen strychni is successively soaked by an alkali solution and an acid solution, outer skin of the semen strychni is removed after the semen strychni is soaked by clean water; (2) slicing, the semen strychni after outer skin of the semen strychni is removed is sliced, dried, mixed with sand, and buried through sand bags; (3) semen strychni slices buried through the sand bags are put into a muffle furnace for heating; and (4) heated materials are taken out for cooling to an indoor temperature, the semen strychni slices are taken out, washed by the clean water, and dried for standby using. According to the toxicity-reducing processing technology, the semen strychni is heated more evenly in the process of heating, changing of inner structure is more conducive to transmission and diffusion of heat in the interior part, and thus the direct contact area between heat and toxic substances is enlarged, direct transformation of the toxic substances is facilitated, and the detoxification effect of the semen strychni is further improved, and therefore, an important role in further improving the application value of the semen strychni is played.
Owner:SUZHOU TIANLING CHINESE TRADITIONAL MEDICINE SLICE

Square steel tube concrete column-steel beam outer ring sleeve plate bolt connection joint

The invention discloses a square steel tube concrete column-steel beam outer ring sleeve plate bolt connection joint. The square steel tube concrete column-steel beam outer ring sleeve plate bolt connection joint comprises a square steel tube, the square steel tube is sleeved with an upper outer ring sleeve plate and a lower outer ring sleeve plate, the upper outer ring sleeve plate comprises an upper short sleeve, an inner surface of the upper short sleeve is connected with the square steel tube, an outer surface of the upper short sleeve is connected with an upper outer ring plate, the lowerouter ring sleeve plate and the upper outer ring sleeve plate are of the same structure, the lower outer ring sleeve plate comprises a lower short sleeve and a lower outer ring plate, and a steel beam is connected between the upper outer ring sleeve plate and the lower outer ring sleeve plate. The distribution of a column wall yield line is expanded, the column wall rigidity of a joint domain isimproved, and the contribution of an outer ring plate to the joint bearing capacity under the action of external load is increased; the defect that the rigidity at the joint is insufficient due to thefact that an inner ring plate is not arranged is overcome; by adopting the method, the field operation amount is small, the steel structure construction efficiency is improved, the material utilization rate is increased, and good economic benefits and social benefits are achieved.
Owner:SHENYANG JIANZHU UNIVERSITY

Aluminum alloy die-casting die easy to rapidly cool

The invention discloses an aluminum alloy die-casting die easy to rapidly cool, and belongs to the field of die-casting dies. According to the aluminum alloy die-casting die easy to rapidly cool, after the die is used for die-casting of aluminum alloy liquid, heat in the alloy liquid is adsorbed by a copper net and transmitted to air stretching sleeve rods, so that air stretching bags are heated and transversely expands at present, the contact area of the air stretching bags and an adherent heat pipe is increased, then the air stretching bags continue to expand downward under the action of heat to drive the adherent heat pipe to move down and gradually extend to a heat reducing chamber, so that the air stretching sleeve rods are dislocated with the adherent heat pipe; and compared with the prior art, according to the aluminum alloy die-casting die easy to rapidly cool, the contact area of condensate water in the heat reducing chamber is significantly increased, the cooling is faster, the die-casting efficiency of aluminum alloy is effectively improved, in addition, in cooperation with the effect of a water stirring rod, the water stirring capacity in the condensate water is effectively improved, the condensate water below the multiple air stretching sleeve rods is in a certain shaking state, and the heat taking-away effect is better.
Owner:叶立容

Orange opposite-washing type sorting machine

The invention discloses an orange opposite-washing type sorting machine. The technical scheme provided by the invention is that: the sorting machine comprises a feeding box and a conveyor belt; a discharging port is arranged on one side of the bottom portion of the feeding box; the discharging port is connected to a channel which is obliquely guided to the conveyor belt; nozzles are arranged above the conveyor belt; the nozzles are symmetrically arranged on the two sides in the lateral upper direction of the conveyor belt; the nozzles are obliquely arranged towards the conveyor belt; the bottom portion of the feeding box is obliquely arranged; oranges are guided to the discharging port through the obliquely arranged bottom portion of the feeding box; a buffer board which is downwardly inclined is arranged at the rear end of the conveyor belt; sorting rods are uniformly arranged on the buffer board; collecting baskets are arranged below the sorting rods; anti-falling fences are arranged on the two side surfaces of the conveyor belt; and each anti-falling fence comprises an upper crossbar, a lower crossbar and vertical bars connected between the upper crossbar and the lower crossbar. The invention aims to provide the orange opposite-washing type sorting machine through which the oranges can be cleaner through the opposite-washing by water on the two sides.
Owner:CHONGQING HENGHE AGRI TECH CO LTD

A direct contact fluid ice slurry generator and its preparation method

The invention relates to a direct contact type fluid ice slurry generator and a preparation method. The direct contact fluid ice slurry generator includes an ice slurry extraction cylinder and a nozzle group, and the ice slurry extraction cylinder has an ice slurry outlet; The nozzle group includes a brine nozzle for spraying brine and an ice-making working medium nozzle for spraying ice-making working fluid, and both the brine nozzle and the ice-making working medium nozzle are arranged on the ice slurry making cylinder , the brine nozzle and the ice-making working medium nozzle are oppositely arranged so that the input brine and ice-making working medium collide; the brine nozzle and the ice-making working medium nozzle are located above the ice slurry outlet, so that the corresponding The nozzle is located above the ice slurry layer during operation. The brine sprayed by the corresponding nozzles collides with the ice-making working medium to increase the mixing degree of the two and improve the heat transfer efficiency. At the same time, during the mixing and collision process, the ice crystals will become smoother in shape and more uniform in size, which reduces the flow resistance of ice slurry, makes ice slurry have better fluidity, and reduces the transportation load.
Owner:NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER

Method for improving performance of organic-inorganic composite material

The invention relates to a method for improving the performance of an organic-inorganic composite material. By using the method, an organic polymer covering surfaces of micro-nano particles in the composite material is selectively etched and removed, so that inorganic micro-nano particles loaded on the surfaces are partially exposed out of the surfaces of the polymer and fibers, and the surface roughness is deepened, so that the functionality of the inorganic micro-nano particles can be really exerted. Meanwhile, due to the improvement of plasma permeability, the interior of the fiber fabric can be fully treated and etched, the exposure proportion of the micro-nano particles is increased, and the performance of the composite material is further improved. The high specific surface area of the fiber fabric and the inorganic micro-nano particles fully exposed inside and outside can fully endow the composite material with greatly improved functional characteristics. According to the inorganic-organic composite material and product prepared based on large-scale industrial blending, the blending preparation and plasma etching process is environmentally friendly and efficient, and the technological process is mature and easy to implement.
Owner:DONGHUA UNIV

Outdoor unit installing structure, outdoor unit and air conditioner

The invention aims to provide an outdoor unit installing structure, an outdoor unit and an air conditioner. The outdoor unit installing structure comprises an upper angular frame, a lower angular frame and a middle fixing frame. Opposite folded edges are arranged on the upper angular frame and the lower angular frame respectively and limit multiple layers of condensers, inclined fixing pieces arearranged on the folded edges, the folded edges are connected with a left side plate through the inclined fixing pieces, and therefore the condensers are connected with the left side plate. Meanwhile,heat exchange holes are formed in the folded edges. Through the first folded edge and the second folded edge, the attaching area of the upper angular frame and the condensers is increased, and the condensers are limited in the thickness direction through the first folded edge and the second folded edge, and will not fall apart easily; meanwhile, the fixing pieces which are inclined are adopted, traditional screw fastening is abandoned, the technological process of screw hitting is omitted, and positioning is directly formed in the vertical direction and left-and-right direction to prevent thecondensers from falling apart under vibration generated in the process of air conditioner running.
Owner:AUX AIR CONDITIONING LTD BY SHARE LTD

An umbrella-shaped tower-type photobiological cultivator

The invention discloses an umbrella-shaped tower type photobiological culture device and belongs to the technical field of microalgae culture. The umbrella-shaped tower type photobiological culture device comprises a wastewater fermentation tank, a culture solution tank, a culture device and a water treatment tank, wherein the wastewater fermentation tank is used for stirring and fermenting wastewater to obtain a microalgae culture solution; the culture solution tank is communicated with the wastewater fermentation tank through a filter and is used for storing the microalgae culture solution and carrying out microalgae inoculation; the culture device comprises a shaft frame; the shaft frame is vertically mounted on a working plane; the shaft frame is provided with a plurality of umbrella-shaped culture units in sequence from big to small according to a height progressively increasing shape; the culture units are light guide plates for forming an umbrella shape; a horizontal solution storage groove is formed in the top of the shaft frame; the solution storage groove is connected with a submersible pump located in the culture solution tank through a liquid inlet pipe; an annular water collection groove is formed in the edge of the culture unit located at the bottommost side of the shaft frame and the water collection groove is communicated with the culture solution tank; the water treatment tank is internally provided with a water filtering unit and a water inlet is connected with the culture solution tank; a water outlet is arranged at one end relative to the water inlet. The umbrella-shaped tower type photobiological culture device combines microalgae culture and microalgae domestication, sewage treatment, biological carbon fixation and microalgae recycling and realizes integration of microalgae culture.
Owner:GUANGXI UNIV

An umbrella tower photobioreactor

The invention discloses an umbrella tower type photobioreactor and belongs to the technical field of microalgae cultivation. The umbrella tower type photobioreactor comprises a culture solution tank, a shaft rack and a light source device, wherein a reflective layer is arranged on the inner wall of the culture solution tank; the culture solution tank is used for containing a culture solution inoculated with microalgae; the shaft rack is vertically arranged in the middle of the culture solution tank; a plurality of umbrella-shaped culture units of which the shapes are gradually reduced according to the progressively increased height are arranged on the shaft rack; the culture units are used for forming an umbrella-shaped light guide plate; a horizontal liquid storage tank is arranged on the top of the shaft rack and connected with a submerged pump positioned in the culture solution tank through a liquid inlet pipe; and the light source device is an LED lamp or a fluorescent lamp and is arranged along the shaft rack. According to the umbrella tower type photobioreactor disclosed by the invention, synchronous adjustment of dip angles of the multi-layer umbrella tower type culture units is realized by a photosensitive hydraulic system, the illumination intensity of the culture units is further regulated, and the light utilization rate is improved.
Owner:GUANGXI UNIV

A photobiological sewage purification device

The invention discloses a photo-biological sewage purification device and belongs to the technical field of micro-algae culture. The photo-biological sewage purification device comprises a suspensionbase, a shaft frame, a light source device and a fixing device, wherein the suspension base can be suspended on water, a culture solution chamber for holding a culture solution inoculated with microalgae is formed inside the suspension base, a turnover cover is arranged at the upper end of the culture solution chamber, and a water inlet with a valve is formed in the bottom of the culture solutionchamber; the shaft frame is vertically mounted in the middle of the upper end surface of the suspension base, a plurality of umbrella-shaped culture units are light guide plates forming a umbrella shape and are sequentially arranged on the shaft frame from big to small according to a height increasing shape, and a horizontal liquid storage groove is formed in the top of the shaft frame and is connected with a submerged pump positioned in the culture solution chamber through a liquid inlet pipe; the light source device is an LED lamp and is arranged along the shaft frame; the fixing device comprises a plurality of fixing cables, and the fixing cables are used for fixing the suspension base in the water. According to the photo-biological sewage purification device disclosed by the invention,microalgae culture is combined with microalgae domestication, sewage treatment, biological carbon fixation and microalgae recovery, so that the integration and the automation of the microalgae culture are realized.
Owner:GUANGXI UNIV
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