38results about How to "Won't happen" patented technology

The invention discloses a method for degrading dioxin in fly ash and stabilizing heavy metals, which comprises the following steps: carrying out water washing treatment on the fly ash, and carrying out solid-liquid separation to obtain water washing slag; mixing the washed slag with water, adding zero-valent iron and sulfite, carrying out hydrothermal treatment, and carrying out solid-liquid separation to obtain hydrothermal slag and hydrothermal liquid; according to the method for degradation of dioxin in fly ash and stabilization of heavy metal in cooperation with degradation of dioxin in fly ash, under the combined action of zero-valent iron, chlorite and a hydrothermal environment, efficient degradation of dioxin in fly ash can be rapidly achieved under the lower reaction condition, stabilization of heavy metal in fly ash can be synchronously achieved, and the method is suitable for industrial production. The method has the advantages of being low in cost, mild in reaction condition, high in treatment efficiency, good in treatment effect, environmentally friendly and the like, can effectively solve the problems existing in the prior art, provides powerful support for harmless treatment and resource utilization of the waste incineration fly ash, and has wide engineering application prospects.

The utility model discloses vacuum plating structure and vacuum plating equipment, vacuum plating structure includes: two transition chambers, be located between two transition chambers's plating chamber and be used for conveying transmission mechanism of carrier plate, transmission mechanism is located in the transition chamber, and transmission mechanism of one transition chamber conveys carrier plate to transmission mechanism of another transition chamber, so that the area of carrier plate in plating chamber is completely suspended. Transmission mechanism contains a plurality of transmission wheel groups that are arranged at intervals along the carrier plate conveying direction, and the transmission wheel group is composed of a pair of transmission wheels arranged oppositely, and the carrier plate comprises a plate body and two transmission edge frames respectively arranged on both sides of the plate body, the inner top surface of the transmission edge frame is a transmission surface, the transmission surface is placed on the transmission wheel, and the bottom of the transmission edge frame is an open mouth that is downwardly open. The utility model can reduce the film layer deposition of transmission wheel, reduce the probability of dust generated due to transmission transportation, and effectively improve the uniformity of substrate plating.

The utility model provides a compressible battery pack heat management heat insulation structure which comprises a battery pack shell, a storage battery management system BMS and battery modules, the two battery modules are arranged in the battery pack shell, and the storage battery management system BMS is electrically connected with the battery modules; each battery module comprises battery cells, compression heat insulation plates, fixed end plates, battery cell connecting aluminum palladium and bandages, the multiple battery cells are arranged side by side, the compression heat insulation plates are arranged between the adjacent battery cells, the fixed end plates are arranged on the outer sides of the battery cells arranged at the two ends, and positive electrodes at one ends of the battery cells are connected with negative electrodes at one ends of the adjacent battery cells on the same side through the battery cell connecting aluminum palladium; the positive electrodes of the battery cells at the two ends of one battery module are connected with the negative electrodes of the battery cells at the two ends of the other battery module through the battery cell connecting aluminum palladium; and the bandage sleeves are clamped on the outer sides of the fixed end plates at the two ends of the battery module. According to the battery module, compression isolation is carried out through the compression heat insulation plates between the battery cells, fixed isolation is carried out through the fixed end plates at the two ends of the battery module, and binding is carried out in cooperation with the binding bands. The compressible capacity except for the heat insulation function of the compression heat insulation plate is used for bearing the functions of extrusion and deformation recovery so as to fix the module binding band, and the cost is reduced.

The invention belongs to the technical field of solvent extraction, and particularly discloses a regeneration method of an extraction solvent. The method specifically comprises the following steps: mixing an extraction solvent with an adsorbent, and carrying out solid-liquid separation to obtain a regenerated extraction solvent and a to-be-treated adsorbent. The extraction solvent is a recovered extraction solvent after extraction operation, and the adsorbent comprises one or more of a zeolite molecular sieve, diatomite, kaolin, anhydrous magnesium sulfate and anhydrous sodium sulfate. The extraction solvent adsorbent used in the method has strong adsorption capacity, not only can adsorb water molecules entrained in the extraction solvent, but also has a very good removal effect on impurity elements enriched in the extraction solvent, and the treated extraction solvent has relatively short extraction phase separation time. The method is simple in process and low in energy consumption, the used adsorbent is low in price, adsorbed impurities can be removed at high temperature, then the adsorbent can be recycled continuously, no waste liquid is generated, and the method has remarkable environmental protection value and economic benefit.

The utility model discloses a kind of bending devices for metal material processing, it is related to bending device technical field, including base, the front end left side fixed mounting of base has controller, the upper end of base is installed with fixed mechanism, the upper end of base is symmetrically fixed mounting with support with four corners, the top of support is fixedly installed with top plate, the lower end of top plate is installed with adjusting mechanism, the lower end of adjusting mechanism is installed with mounting frame, the inside movable mounting of mounting frame has mounting block, the lower end of mounting block is fixedly installed with bending head.The utility model is cooperated under connecting plate, screw No. 2, mounting seat, hydraulic cylinder, limit rod, limit block, motor No. 2, using rotating screw No. 2 can drive bending head to move left and right horizontally by mounting seat, and then the position of bending head can be adjusted, so that staff can adjust the position of bending, without manually adjusting bending position, it is convenient and fast to adjust, convenient for staff to use.

The invention relates to the technical field of decorative materials, in particular to flame-retardant wall cloth and a preparation method thereof. The flame-retardant wall cloth provided by the invention comprises a base cloth layer, a flame-retardant coating and a surface layer, the flame-retardant coating is formed by water-based paint coated on the base cloth layer; the surface layer is formed by a surface layer coating which is coated on the flame-retardant coating; the water-based paint comprises a water-based adhesive and an inorganic pigment filler, and the mass ratio of the water-based adhesive to the inorganic pigment filler is 1: (2-4); the inorganic pigment filler comprises an inorganic filler and titanium dioxide, the particle sizes of the inorganic filler comprise 1000 meshes and 800 meshes, and the mass ratio of the 1000-mesh inorganic filler to the 800-mesh inorganic filler is (1-2): (1-2). According to the flame-retardant wall cloth, chemical flame retardants do not need to be added, and the flame-retardant wall cloth is more environmentally friendly and safer; the flame-retardant property is more stable and cannot be reduced along with time extension; the cost of the flame retardant does not need to be additionally increased, the preparation is simple, and good economic benefits are achieved.

This invention relates to a circulating heating wastewater-free tail gas treatment device. A reaction cylinder, a second cooling device, and an adsorption cylinder are sequentially connected. The reaction cylinder includes an inner cylinder, a tail gas inlet pipe, and a heating rod. A solid catalyst is placed inside the inner cylinder, and the heating rod is located inside the inner cylinder. The tail gas inlet pipe is connected to the inside of the inner cylinder. The second cooling device includes a housing, a liquid conveying device connected to both the inside of the inner cylinder and the housing, and an atomizing device outlet connected to the inside of the inner cylinder. This invention uses the liquid conveying device to transport waste liquid from the housing to the inner cylinder. The waste liquid evaporates at high temperature, releasing small bubbles and preventing production stoppages due to excessive waste liquid in the housing. Some of the gas generated in the waste liquid reacts in the high-temperature environment inside the inner cylinder to form harmless products, reducing the amount of harmful gases adsorbed by the adsorption cylinder and increasing the service life of the packing material inside the adsorption cylinder.

The invention discloses a photocatalyst as well as a preparation method and application thereof, and relates to the field of catalysts. The photocatalyst is prepared by adopting a hydrothermal-calcining-photodeposition method and comprises nanoflowers formed by indium zinc sulfide ultrathin nanosheets and iridium metal atoms loaded on the surfaces of the nanoflowers. The catalyst can be applied to a free radical type photocatalytic alkylation reaction, especially an indole C-2 alkylation reaction, and the yield and selectivity of the reaction are greatly improved. The photocatalyst also has the advantages of small addition amount of noble metal, high stability and capability of catalyzing reaction under visible light, and has a wide application prospect in the field of organic synthesis.

The invention relates to a novel method for preparing high-purity anhydrous ferric trichloride, which is technically characterized by comprising the following steps of: S1, filling 5000mg of high-purity FeCl2. 4H2O crystal particles into a polytetrafluoroethylene tank protected by argon atmosphere, heating to 220-225 DEG C by using microwaves or / and light waves, arranging a tail gas absorption device above, cooling the absorbed mixed gas to form a liquid state, collecting the liquid state for reutilization, and recycling the liquid state by using the tail gas absorption device; heating is conducted for 20 min to 30 min; s2, small blocky solids of anhydrous FeCl2 are put into a grinding machine groove protected by argon to be ground, and grinding is stopped after the diameter of particles ranges from 0.1 micrometer to 5 micrometers; and S3, loading the powdery anhydrous FeCl2 particles into a stirring and grinding reaction kettle, stirring and grinding at 50-90r / min, meanwhile, adding dried high-purity chlorine gas into the bottom of the reaction kettle, and terminating the reaction when the pressure is 0.10-0.11 MPa, the chlorine gas and the anhydrous FeCl2 powder are subjected to an exothermic reaction (90 DEG C) and Fe < 2 + > is less than or equal to 0.15 wt%, so as to obtain the powdery anhydrous FeCl3. The method has the advantages of short process flow, capability of being operated at normal temperature and normal pressure, low energy consumption required by reaction, high final product purity and the like.

The utility model relates to the field of titanium tetrachloride detection, in particular to a titanium tetrachloride test sample preparation device, which comprises a first container, a second container and a third container, the second container comprises a first liquid inlet and a gas outlet; and the U-shaped pipe comprises a second liquid inlet and a second liquid outlet which are respectively communicated with the first liquid outlet and the first liquid inlet in an airtight manner, and the second liquid inlet and the second liquid outlet of the U-shaped pipe are respectively close to the bottoms of the first container and the second container. According to the system disclosed by the utility model, titanium tetrachloride and a hydrochloric acid solution can be mixed in a closed environment, so that a stable titanium tetrachloride sample is prepared, and the titanium tetrachloride sample mixed with hydrochloric acid cannot generate hydrochloric acid mist, heat and solid particles after meeting air, so that the detection operation is greatly simplified, and the detection efficiency is improved. And carbon deposition cannot be generated during flame combustion detection, so that the element detection accuracy is greatly improved.

The application discloses an acid mine drainage treatment system and a use method thereof, and belongs to the technical field of acid mine drainage treatment. The acid mine drainage treatment system comprises an iron removal device, a neutralization device and a control device, and is characterized in that the iron removal device comprises an adjusting pool, an injection pipe arranged at the side end of the adjusting pool, a reaction mechanism arranged beside the adjusting pool, a first conveying mechanism connecting the reaction mechanism and the adjusting pool, an iron precipitation pool arranged beside the reaction mechanism, and a first connecting pipe connecting the reaction mechanism and the iron precipitation pool; the neutralization device comprises a neutralization mechanism arranged beside the iron precipitation pool, a second conveying mechanism connecting the iron precipitation pool and the neutralization mechanism, a neutralization precipitation pool arranged beside the neutralization mechanism, a second connecting pipe connecting the neutralization mechanism and the neutralization precipitation pool, a third conveying mechanism arranged at one side of the neutralization precipitation pool and a siphon mechanism. The application can realize the treatment of acid mine drainage, resource recycling and mine filling.

The present invention discloses an environmentally friendly water glass-based binder for 3D sand core printing and a preparation method thereof, and belongs to the field of binder processing technology. The present invention is used to solve the technical problems of poor fluidity of 3D printing mixed sand prepared by mixing water glass binder with 3D printing standard sand in the prior art and poor molding strength, moisture resistance and collapsibility of 3D printing sand cores. The environmentally friendly water glass-based binder for 3D sand core printing includes the following components by weight: 80-100 parts of composite water glass and 25-30 parts of composite accelerator. The binder prepared by the present invention can effectively improve the fluidity of 3D printing mixed sand, the 3D printed sand core can be formed immediately, the molded sample has good strength and moisture resistance, and the collapsibility of the sand core is good, no harmful gas is generated during the pouring process, and the used sand core molding sand can be recycled to reduce production costs, which is in line with the green and environmentally friendly manufacturing concept.

The present application provides a method for preparing a glycidyl (meth)acrylate compound of Formula 1, the method comprising reacting a (meth)acrylate compound of Formula 2 with a glycidyl compound of Formula 3 to produce the glycidyl (meth)acrylate compound, the reaction being performed in the presence of a catalyst, the catalyst being a Lewis base compound. The method enables extremely excellent target product yield and purity to be achieved at low cost and simple steps, and successfully eliminates defects associated with prior art catalysts during the reaction process. Formula 1

The utility model relates to the field of disinfection equipment, in particular to a chopstick box based on an ozone sterilization and disinfection control circuit, which comprises the following components: an upper cover and a bottom box which are connected into a whole through a hinge; the disinfection structure is arranged on the upper cover, the disinfection structure comprises a control panel and a disinfection device, the storage cavity is formed between the upper cover and the bottom box and used for containing chopsticks, the heat conduction plate is arranged on the bottom box, and ozone can be generated through an ozone generator arranged on the upper cover and the chopstick box. The chopsticks in the storage cavity are efficiently sterilized and disinfected. Ozone has strong oxidizing capacity and can quickly kill microorganisms such as bacteria and viruses, so that sanitation and safety of the chopsticks are ensured, diseases are effectively prevented from entering the chopsticks from the mouth, and the chopsticks can be quickly and effectively dried, bacterium breeding is avoided, and dryness and sanitation of the chopsticks are kept through combined use of the heat conducting plate and the drying fan.

The embodiment of the invention provides a die bonding method using a wave-shaped fitting wave. The die bonding method comprises the following steps: configuring a first through hole, a second through hole, a third through hole, a first through hole and a second through hole on a die bonding device; the die bonding device sucks the first side, the third side and the fourth side of the wafer or the crystal grain through the first negative pressure, the second negative pressure and the third negative pressure respectively; the die bonding device moves the wafer or the crystal grain to the position above the substrate; the die bonding device blows and acts on the first side of the wafer or the crystal grain by means of the first positive pressure, the first side of the wafer or the crystal grain deflects and deforms to be in contact with the substrate, and a bonding wave is formed; and closing the first negative pressure, the second negative pressure and the third negative pressure in sequence from the first side of the die bonding device to the second side of the die bonding device, and simultaneously providing the second positive pressure in sequence from the first side of the die bonding device to the second side of the die bonding device.

The utility model relates to the field of cutting devices, in particular to a disc type sponge cutting device which comprises a bottom plate, a rotating disc is arranged above the bottom plate, the rotating disc is driven by a rotating motor to rotate, a round hole penetrating through the rotating disc is formed in the middle of the rotating disc, and two lifting motors are further fixed to the bottom plate; wherein one lifting motor is fixed on the bottom plate at the position of the round hole, the other lifting motor is fixed on the bottom plate outside the rotary table, a screw rod is fixed at the output end of each lifting motor, a sliding plate is further arranged above the rotary table, fixing plates are symmetrically fixed on the two sides of the sliding plate, and guide wheels are arranged on the upper side and the lower side of each fixing plate. A cutting rope is further arranged above the rotating disc and sequentially wound around the guide wheels. According to the device, a sponge block can be cut into sponge pieces with the corresponding thickness, the sponge pieces are separated from the sponge block through the push rod after being cut off, the cut sponge pieces cannot heavily press sponge on the lower layer, and it is guaranteed that the thickness of the cut sponge pieces meets the requirement.

This invention relates to a fire-resistant, heat-insulating, and thermally insulating composite material, its preparation method, and its application. The composite material comprises an outer layer and an inner layer stacked together, connected by weaving and / or quilting. The outer layer includes a first woven layer made of a first continuous refractory fiber, with a bimetallic hydroxide epitaxially grown in situ on the surface of the first continuous refractory fiber. The inner layer includes a second woven layer made of a second continuous refractory fiber, with flexible aerogel disposed on the surface and / or in the cavities of the second woven layer. The interlayer anions of the bimetallic hydroxide include carbonate and / or bicarbonate ions. This invention utilizes continuous refractory fibers, which are beneficial for flame retardancy, fire prevention, and heat insulation. The bimetallic hydroxide in the outer layer can release interlayer water and hydroxyl water at high temperatures, and the interlayer anions can decompose into carbon dioxide, actively cooling and extinguishing open flames. The flexible aerogel in the inner layer is beneficial for heat insulation. The connection method avoids the use of polymer adhesives, resulting in good air permeability.

The utility model provides a detachable H-shaped frame of a belt conveyor, which belongs to the technical field of mining equipment and comprises two upright posts and a cross beam, and clamping grooves are formed in the middle parts of the two upright posts; the two ends of the cross beam are provided with clamping jaws used for being matched with the clamping grooves and abutting plates used for abutting against the corresponding stand columns. Wherein the clamping jaw extends downwards and is vertically arranged, and the clamping groove surrounds the outer portion of the lower end of the clamping jaw; the side, opposite to the stand column, in the clamping groove and the side, opposite to the stand column, of the clamping jaw are inclined faces. According to the utility model, the structure is simple, the mounting and the dismounting are simpler and more convenient, no extra parts are arranged, and the situation that the mounting is difficult due to the loss of too small parts is avoided.

This utility model discloses a water-sand mixing sandblasting machine, including a support frame with a grinding fluid tank and a sandblasting tank on the support frame. The grinding fluid tank contains a grinding fluid pump, and the sandblasting tank contains a spray gun and gloves. The inlet of the grinding fluid pump is located at the bottom of the grinding fluid tank. The grinding fluid pump has a grinding fluid delivery port and at least one grinding fluid backflushing port. The grinding fluid delivery port is connected to the spray gun through a first pipe to supply grinding fluid to the spray gun. The grinding fluid backflushing port delivers grinding fluid to the bottom of the grinding fluid tank through a second pipe to make the grinding fluid at the bottom of the grinding fluid tank more uniformly mixed. This sandblasting machine delivers grinding fluid to the spray gun through the grinding fluid delivery port and simultaneously delivers grinding fluid to the bottom of the grinding fluid tank through the grinding fluid backflushing port to backflush the grinding fluid tank, causing the abrasive and liquid to flow and preventing the abrasive from settling to the bottom. This results in a more uniform mixing of the abrasive and liquid, ensuring that the mixing ratio of abrasive and liquid is within a predetermined range.

The present invention provides a perfusion bioreactor, which at least includes: a culture chamber, in which a biological scaffold is arranged; a circulation pump, which is connected to the culture chamber; a supply chamber, which is respectively connected to the culture chamber and the circulation pump, and the supply chamber is used to hold a culture medium, and the supply chamber is connected to the outside world; a catheter, and the catheter includes a first catheter, a second catheter, a third catheter and a fourth catheter; when the supply chamber contains a culture medium, one end of the second catheter in the supply chamber is located below the liquid surface of the culture medium, and one end of the fourth catheter in the supply chamber is located above the liquid surface of the culture medium. The perfusion bioreactor of the present invention can simulate the in vivo microenvironment as much as possible during the in vitro construction of organs and tissues, ensure the supply of nutrients to cells and the discharge of excreta, the reactor is a sterile environment, stable, cell growth and vitality are vigorous, and the culture cycle and cost are reduced.

The utility model provides a heating element, an atomizer and an electronic atomization device.The heating element is applied to the electronic atomization device and used for heating atomized aerosol to form a substrate, and the heating element comprises a base body and a heating film; the base body is provided with a liquid absorbing surface and an atomizing surface which are oppositely arranged; the heating film is arranged on the atomizing surface; wherein a plurality of capillary grooves are formed in the liquid absorption face, a plurality of first micro holes distributed in an array mode are formed in the base body, the width of the capillary grooves is larger than or equal to the diameter of the first micro holes, and the first micro holes at least exist in the capillary grooves so that the first micro holes can penetrate through the atomization face and can be communicated with the capillary grooves. Therefore, the phenomenon that bubbles block liquid inlet can be avoided, the capillary grooves have the capillary effect and can adsorb liquid, store the liquid, increase the liquid storage amount of the base body and improve the liquid storage capacity and the liquid guide capacity of the heating body, and the situation that the liquid base body cannot be supplemented to the heating body in time is avoided; the problems that in the prior art, a heating body of an electronic atomization device is small in liquid storage amount, and a core is prone to being burnt due to dry burning are solved.

This invention discloses a wireless charging testing device, including a horizontally arranged worktable. A multi-coil feeding mechanism, which can be driven to reciprocate on the worktable, is arranged above the worktable along the movement direction of the multi-coil feeding mechanism, with a detection unloading mechanism and a feeding mechanism spaced apart. A feeding platform is arranged on one side of the worktable, corresponding to the feeding mechanism. This invention can replace manual inspection or single machine inspection, realizing batch inspection of coils and improving inspection efficiency and accuracy. This invention is applicable to the technical field of coil inspection in the production of wireless charging devices.

This invention provides a diazotrophic bacterium capable of degrading benzene compounds and its applications. Specifically, this invention provides a diazotrophic bacterium strain, which has the preservation number CGMCC No. 32883. The diazotrophic bacterium strain of this invention is named DPB548, and it can be used for the degradation of benzene compounds in water or air.

The utility model provides a single crystal oxide centralized collection device, and relates to the technical field of dust removal. The device comprises a stock bin, a negative pressure air draft module communicated with the stock bin, a conveying main pipe communicated with the stock bin, and a high negative pressure dust removal module arranged on the conveying main pipe, the high negative pressure dust removal module comprises a dust removal unit, the dust removal unit comprises a dust remover, the bottom of the dust remover is communicated with an oxide collecting barrel, and the bottom of the oxide collecting barrel is communicated with the conveying main pipe. The oxide collecting barrel is communicated with the conveying main pipe, and the negative pressure air draft module sucks to enable the oxide in the oxide collecting barrel to enter the stock bin through the conveying main pipe. According to the utility model, oxides in the oxide collecting barrel can be automatically collected and cleaned, and the cleaning efficiency is improved.

The utility model belongs to the technical field of coal-bed gas well pumping unit indicator diagram testing, and provides an auxiliary tool for coal-bed gas well pumping unit indicator diagram testing, which comprises a gas production tree, a polish rod is arranged in the gas production tree, and the polish rod reciprocates up and down in the gas production tree. A third square clip is mounted at the top, close to the gas production tree, of the polished rod through a bolt; the auxiliary device comprises a main body, the section of the main body is of a U-shaped structure, a lock hole is formed in the inner side of the main body, a cylinder is fixedly installed in the lock hole, a limiting ball is inserted into the cylinder, and a spring is connected between the interior of the cylinder and the limiting ball; according to the utility model, the operation process is greatly simplified, in the testing process, the operation of mounting and dismounting the indicator diagram testing instrument or other operations by starting and stopping for multiple times is not needed, and the indicator diagram testing instrument can be mounted and dismounted without stopping only by aligning the U-shaped opening of the tool with the polish rod and slightly buckling the U-shaped opening.

The invention discloses a humic substance reinforced hydroxyapatite-bacillus subtilis semi-artificial photosynthetic material and a preparation method and application thereof.The preparation method comprises the steps that firstly, hydroxyapatite microspheres are subjected to Fe2O3 doping, the Fe2O3 doped hydroxyapatite microspheres are combined with bacillus subtilis, and the hydroxyapatite-bacillus subtilis semi-artificial photosynthetic material is obtained; and the semi-artificial photosynthetic material of the bacillus subtilis-Fe2O3 doped hydroxyapatite microspheres is obtained. And then, adding the humic substance into the hydroxyapatite-bacillus subtilis semi-artificial photosynthetic system, so as to obtain the humic substance reinforced hydroxyapatite-bacillus subtilis semi-artificial photosynthetic material. The raw materials of the prepared material are easy to obtain, the method is simple, and when the material is applied to enhancing the activity of the antioxidant enzyme of the bacillus subtilis, the cost of producing the antioxidant enzyme by the bacillus subtilis is expected to be reduced; meanwhile, the bacillus subtilis can be used for fixing CO2 through photocatalytic reduction, carbon emission and the like in the aerobic fermentation process of the bacillus subtilis are expected to be reduced, and economic benefits and environmental benefits are achieved.

The utility model discloses a kind of coating machines of preventing material deposition, belong to coating machine technical field, including machine body, the inside bolt connection of machine body has feed tank, and the surface of feed tank is provided with conveying pipe, and conveying pipe feeds machine;The inside rotation of feed tank is provided with connecting shaft, and the surface of connecting shaft is fixedly connected with auxiliary plate;The inside rotation of feed tank is provided with long pin, and the surface of long pin is fixedly connected with stirring vane;The inside movement of feed tank is provided with movable plate.This coating machine of preventing material deposition, in the use process, raw material is added to the inside of feed tank, then the tank cover of feed tank is covered, and at this time, motor can be started, when motor works, drive long pin and stirring vane rotate, play basic stirring function, and in this process, connecting shaft and auxiliary plate are in reciprocating rotation state, play the role of auxiliary stirring, optimize the stirring effect, avoid the deposition of material.

The present invention discloses a kind of glue for flocking and its preparation method, and relates to the field of adhesives. A kind of glue for flocking is prepared by the following raw materials including parts by weight: 45-65 parts of soft monomers; 6-15 parts of hard monomers; 1.5-3 parts of eleostearic acid; 1-4 parts of cross-linking monomers; 2-4 parts of glycidyl methacrylate; 1-3 parts of methacryloyloxyethyl phosphate; 0.5-2 parts of emulsifiers; 0.5-1 parts of initiators; 0.05-0.2 parts of regulators; 65-120 parts of deionized water; wherein, the cross-linking monomers are selected from one or more of ethylene glycol dimethacrylate, diacetone acrylamide / adipic acid dihydrazide, and the weight ratio of the diacetone acrylamide and the adipic acid dihydrazide is (1.8-2.1): (0.8-1.3). The present application has the effect of taking into account both the flocking fastness and the feel of the flocking product.

The application provides a corn straw-based foam material and a preparation method and application thereof. The foam material is prepared from the following raw materials in mass fractions: corn straw 2-30 parts, foam stabilizer 0.5-5 parts, foaming agent 0.01-2 parts, flocculating agent 0.1-2 parts and deionized water 50-150 parts. Through specific chemical and physical process treatment, the corn straw can be converted into a porous structure foam material. The foam material has the advantages of light weight, high strength and good heat insulation performance, and can be applied to the fields of heat insulation, heat preservation, packaging and filling materials. The application can effectively utilize the waste in agricultural production, reduce environmental pollution and provide a new type of environment-friendly material for the industrial field. The materials not only improve the added value of agricultural by-products, but also broaden the application range of the materials in the fields of building, packaging, filling materials and the like.

The invention provides an efficient and environment-friendly COD (Chemical Oxygen Demand) remover and a preparation method thereof, and the remover is mainly prepared from the following raw materials in parts by mass: 10-27 parts of an oxidant, 30-50 parts of a coagulant, 40-60 parts of an adsorbent, 10-20 parts of a catalyst, 30-40 parts of a stabilizer and 3-8 parts of an inhibitor. The COD remover can quickly and effectively reduce the COD value in wastewater and reduce the negative influence on the environment at the same time.