148results about How to "Avoid resurgence" patented technology

1) Hydrophilic fluoropolymers obtained by radical polymerization, in a precipitating medium, of a mixture of monomers composed of at least one monomer with a perfluoroalkyl side chain, of one or more ionic or ionizable hydrophilic monomer(s) and optionally of one or more nonionic hydrophilic monomer(s).2) Use of these polymers as dispersants or thickeners and as additives in multipurpose fire-fighting emulsifiers.

The invention discloses a transformer oil fire extinguishing agent. The transformer oil fire extinguishing agent comprises, by weight, 20-30 parts of an oil-in-water type emulsifying agent, 5-20 partsof a turbidity point improving agent, 3-15 parts of a surface spreading agent, 1-5 parts of a negative combustion catalyst, 1-5 parts of a near-fire gelatinizing synergist, 0.1-3 parts of a corrosioninhibition auxiliary and 40-60 parts of water. The invention further provides a fire extinguishing system for a transformer, and the fire extinguishing system adopts the transformer oil fire extinguishing agent. The substances in the transformer oil fire extinguishing agent are low in electric conductivity and high in insulating property and achieve the synergistic effect, and therefore the finally-obtained composite fire extinguishing agent has the advantages that the insulating property is high, the fire extinguishing efficiency is high, and electrifying is safe and reliable. In addition, water mist sprayed by the fire extinguishing system for the transformer is high in insulating property, electrified fire extinguishing can be achieved, and the outdoor wind resistance is achieved.

The invention discloses a double-aerosol-extinguishant spraying device which comprises a high-shooting-speed fan or an aero-gas turbine, an aerosol extinguishant spraying tube, a water supply ring, a foamite supply ring, a superfine dry powder extinguishing agent spraying gun, a superfine water mist spraying nozzle, a foamite spraying nozzle, a first solenoid valve, a second solenoid valve and a third solenoid valve. The double-aerosol-extinguishant spraying device achieves mass flow and high-shooting-speed spraying. Double-aerosol-extinguishant jet flow sprayed by the double-aerosol-extinguishant spraying device is sprayed into an internal space of a building on fire, aerosol extinguishants are rapidly dispersed to generate a 'totally flooding' state and enter the interior of flames under the action of entrainment airflow of the flames, and consequently a fire in the building can be rapidly put out, and the flames are prevented from reburning.

The invention relates to a preparation method for an oxygen barrier composite layer grain packing bag. The preparation method is characterized by comprising the following steps of: adopting anti-aging polypropylene materials as a protection layer; adopting a three-layer composite oxygen barrier film consisting of polypropylene/ethylene-vinyl acetate/polyethylene or polypropylene/ partial chloroethylene/ and polyethylene as an oxygen barrier layer; mixing linen with ES fiber according to different proportions; preparing two layers of fiber webs of a film sticking layer and a moisture absorption layer respectively by a nonwoven technology; combining the fiber webs into a whole body through a needling layer; overlapping a non-hydrophilic ES fabric web formed by the nonwoven technology on themoisture absorption layer; preparing a composite water locking layer by needling again, wherein the three layers of materials are the protection layer, the oxygen barrier layer and the composite water locking layer sequentially from top down; preparing a material of a bag body through thermal compound; and preparing the grain packing bag by cutting, suturing, hot pressing and sealing. According to the method, the conventional production equipment can be used, the process is simple, the production cost is low, the mold and toxin are prevented from being bred in grains in the bag by regulating the proportion of the materials of all the layers and in the layers, and various requirements of storage, transportation and mold resistance are met.

The invention discloses a glyphosate assistant and a preparation method thereof. The glyphosate assistant comprises the following raw materials in percentage by weight: 15-30% of anhydrous sodium sulfite, 10-15% of sulphamic acid or sodium borate, 40-60% of ammonium bicarbonate, 5-10% of catalyst and 4-15% of surfactant; the glyphosate assistant can convert glyphosate active compound into glyphosate soluble powder under the condition of normal temperature and normal pressure; the prepared soluble powder is dry, and the expanding or moisture absorption is avoided; the preparation method mainly comprises the steps of preparing surfactant, catalyst and product; and the preparation method is simple and practicable.

The invention relates to the fields of manufacturing and application of heat-resistant, heat-insulating, flame-retardant and high-temperature expansion materials, specifically to a hydrogel with fireproof and cooling functions and a preparation method thereof. The hydrogel comprises the following components in parts by mass: 0.05-20 parts of a hydrogel thickening agent, 5-35 parts of a freezing point depressant, 1-30 parts of an expanded foam material, 1-15 parts of an expanded flame retardant, 0.01-1 part of a foaming agent, 1-15 parts of a gas generating agent and 0.01-1 part of a bactericide. The hydrogel provided by the invention has the following innovations: when the hydrogel directly acts on the surface of a comburent, the hydrogel can be adhered to the surface of the comburent; meanwhile, foams can be generated on the surface of the comburent and contain water, so the water can be sealed in the foams to continuously exert cooling and fire extinguishing effects; after the wateris dried, an expansion flame-retardant layer can be formed to provide continuous heat-insulation and flame-retardant functions; and the functions of fire extinguishing, cooling, heat insulation and fire reburning prevention are achieved.

The invention discloses a roller type efficient mulberry leaf drying device. The roller type efficient mulberry leaf drying device comprises a base, a roller, a transmission mechanism and an air heater; two stand plates are arranged on the left and right sides of the top of the base; a cross beam is connected to the tops of the stand plates on the two sides; the roller is arranged above the base;a left rotating shaft and a right rotating shaft are respectively connected to the centers of the end surfaces on the two sides of the roller; the right rotating shaft is an extension shaft with a hollow design; a transmission shaft for driving the left rotating shaft to rotate is arranged on the left side of the left rotating shaft; the transmission shaft is provided with a transmission mechanismfor driving the transmission shaft to rotate; the air heater is mounted on the right side of the base; a hot air pipe upwards extends to penetrate through the stand plate on the right side, and extends into the roller in the axis direction of the right rotating shaft; exhaust ports are densely formed in the hot air pipe; and an overturning rod is arranged at the outer periphery of a pipe body ofthe hot air pipe. The mulberry leaf drying device can effectively prevent nutrient loss of mulberry leaves to guarantee no influence on nutritional value of the mulberry leaves, and meanwhile, is uniform in heating of the mulberry leaves and excellent in drying effect to guarantee the quality grade of dried finished products.

The invention relates to aqueous solution with fine water mist fire extinguishment additive, with the quality percentage of all components as below: ammonium chloride 0 percent to 1 percent, polyvinyl alcohol 0 percent to 1 percent, sodium acetate 0 percent to 0.5 percent, surface active agent 0.01 percent to 0.25 percent, urea 0 percent to 1 percent, rust preventive 0.01 percent to 0.25 percent, and the rest is water. The aqueous solution can improve the fire extinguishing efficiency of the fine water mist and effectively prevent after-combustion of inflamers; has little corrosion to equipments and instruments; basically has no pollution to fire scenes; is high-efficiency, stable and clean; the raw materials of all components are easy to be obtained; has stable performance; is basically nontoxic and low in cost; and has low consumption.

The invention belongs to the field of chemical materials, and particularly relates to a concentrated high-efficient fire extinguishing agent and a preparation method thereof. The concentrated high-efficient fire extinguishing agent is prepared from the following raw materials: urea, ammonium chloride, ammonium sulfate, sodium bicarbonate, potassium carbonate, a sodium silicate gel solution, ethylene glycol, ammonium polyphosphate, a surfactant, a foaming agent and water. The fire extinguishing agent is fewer in raw materials, low in cost, high in fire extinguishing grade, wide in application range and good in anti-reflash performance; the fire extinguishing agent is low in freezing point, so that the freezing point is applicable to the low-temperature environment of the northeast area; the fire extinguishing agent is concentrated, and before use, the fire extinguishing agent is mixed with water according to a ratio of 1:16 and can extinguish fires of 2A and 89B, so that the fire extinguishing agent occupies small space when being stored conventionally; and the fire extinguishing agent is soluble in water, so that a uniform solution state can be reached immediately after the fire extinguishing agent is mixed with water.

The invention discloses a gas-solid composite dry powder extinguishing agent and a preparation method therefor. The method is characterized by the steps as follows: dissolving urea in an ethanol-water mixed solution with a volume ratio of ethanol to water being 1:2-5, the concentration of magnesium ion being 0.2-1.2 mol/L and the molar ratio of the urea to the magnesium ion being 2-6:1; heating the mixed solution at 90-120 DEG C for 8-12 hours to obtain a white precipitate of magnesium hydroxide; filtering the solution; washing the white precipitate; drying the white precipitate at 120 DEG C for 6-12 hours; placing the dried magnesium hydroxide precipitate into a pressure-resistant container; vacuumizing the container; filling the pressure-resistant container with 2-bromo-3,3,3-trifluoropropene (BTP) liquid, wherein the mass of the 2-bromo-3,3,3-trifluoropropene accounts for 5.0-16% of the mass of the system; allowing the system to stand at 35-50 DEG C for 12-24 hours; cooling the system to room temperature; adding talcum powder to the container with the mass of the talcum powder accounting for 1.0-4.0% of the mass of the system; mixing the powder uniformly to obtain the gas-solid composite dry powder extinguishing agent. The extinguishing agent is low in corrosivity and good in anti-reburn performance. The raw materials of the extinguishing agent are cheap and easy to obtain and the preparation process is simple. The extinguishing agent is suitable for various fire hazards such as solid fires, combustible gas fires and liquid fires or the like.

The invention discloses a cosmetic production raw material drying device, and belongs to the field of cosmetics. The cosmetic production raw material drying device comprises a drying box, wherein rollers are rotatably connected into an inlet and an outlet through rotating shafts, the outer walls of the two rollers are sleeved with a conveying belt, a motor is fixedly installed on the side wall ofthe drying box, and an output shaft of the motor is in transmission connection with one of the rollers through a first chain. A plurality of evenly-distributed transverse rods are fixedly connected between the inner walls of the drying box, triangular blocks attached to the upper end face of the conveying belt are fixedly connected to the lower ends of the transverse rods through supporting rods,an exhaust groove is formed in the upper end of the drying box, and an air blowing device connected with the rotating shaft is arranged at the upper end of the outlet. A cleaning device matched with the conveying belt is arranged at the lower end of the drying box; The cosmetic production raw material drying device dries cosmetic raw materials while the cosmetic raw materials are turned over and and blow-dried, moisture regaining caused by steam after drying of the raw materials is prevented, and the drying effect is greatly improved.

The invention relates to the field of a multifunctional biomass coating, particularly to an air-purification, humidifying, self-cleaning, antimicrobial and healthy shell powder biomass dry powder coating. The dry powder coating comprises, according to a weight part ratio, 25-40 parts of shell powder, 0.5-2.0 parts of nanometer yiwangshi negative ion powder, 10-20 parts of titanium dioxide, 0.8-2.5parts of a solid antifoaming agent, 0.5-10 parts of pigments and fillers, 7-13 parts of an adhesive, 0.5-5.0 parts of cellulose ether, 0.5-1.5 parts of a wetting dispersant, 1.5-2.0 parts of a dry film mildew inhibitor, and 0.5-1.5 parts of an auxiliary agent. The air-purification, humidifying, self-cleaning, antimicrobial and healthy shell powder biomass dry powder coating takes shell powder asa main raw material, doesn't emit harmful gases including formaldehyde, benzene, ammonia gas, and TVOC (volatile organic compounds), and has the function of formaldehyde and VOC adsorption, breathability and humidity controlling, and wall self-cleaning, is easy to repair, is antimicrobial, and can remove ticks and peculiar smell.

The invention relates to a flow-control and variable-temperature spray drying system which comprises a heating device, a spray drying tower and an induced draft fan, wherein the spray drying tower comprises an uniform-air section, a tower upper cone, a barrel and a lower cone body from top to bottom; the side wall of the uniform-air section is connected with a tower body hot-blast main pipe; the side wall of the tower upper cone is connected with a feed liquid pipe; the inner end of the feed liquid pipe is connected with a feed liquid atomizing device; the feed liquid atomizing device is positioned on the axis of the barrel; the lower end of the barrel is connected with a tower body exhaust pipe; a finished product discharge valve is mounted at a lower port of the lower cone body; an air outlet of the heating device is connected with the tower body hot-blast main pipe; at least one barrel rectifying ring capable of forming an annular downward air flow on the inner wall of the barrel ismounted on the circumference of the barrel of the spray drying tower; the barrel rectifying ring is coaxial with the barrel; the outer side wall of the barrel rectifying ring is connected with a barrel rectifying ring blast pipe; a plurality of temperature gradients are formed in the tower body from top to bottom. The spray drying system can avoid wall sticking and realize online variable-temperature control, and the product has the advantages of high yield and good quality.

The invention belongs to the technical field of bark processing, in particular to a method for dyeing bark bark to prevent fading. First, the bark bark is soaked in soaking liquid, steamed and dried, which not only can effectively kill harmful bacteria carried by the bark, but also Enlarging the pores between the bark cell structures is conducive to dyeing, and can effectively improve the stability of the bark fibers, making them more flexible and elastic, and effectively inhibiting the cracking of bark handicrafts; then soaking in dyeing agents, microwave and heat The pressure drying treatment can not only make the bark of the tree evenly colored, bright in color, enhance its anti-sun ability, avoid decay and fading after exposure to the sun, but also effectively prevent moisture resurgence. The smell is fragrant, non-irritating, and will not cause any damage to the human body.

The invention mainly relates to the technical field of wooden product processing, and discloses a wood softening and mouldproof method. The method comprises the following steps: arranging wood; soaking the wood in acid; washing the wood with alkaline; blanching the wood; and softening the wood. The method is simple, and convenient to operate; mass treatment can be carried out; the pliability of the wood can be improved; breaking and cracking phenomena occurring during use can be reduced, the breaking rate is decreased to be 2.7%, and the cracking rate is decreased to be 4.9%; the mouldproof time is prolonged, so that the use performance of the wood is obviously improved, and as a result, the economic income is increased by 9.6%; after being cut, the wood is soaked in an acetate solution which contains high-concentration white granulated sugar, so that water entering the wood fibers can be accelerated to decrease the pH of the wood, and as a result, the wood fibers can be quickly softened; then angel wine active dry yeast is added for fermentation, and the generated ethyl acohol and bioactive constituents can permeate the wood fibers; after drying, pore structures among the fibers can be increased, thus the pliability of the wood can be improved; the color of the wood can be prevented from being deepened; and treatment traces are reduced.

The invention relates to the technical field of wood product processing, and discloses a softening method for bark. The softening method for the bark comprises bark arrangement, bark alkali immersing, bark acid pickling, bark blanching, bark drying and bark softening. The method is simple, the operation is convenient, and a large batch of bark processing can be conducted. The flexibility of the processed bark is increased by 27.3%, cracking rate is decreased to 4.6%, the bark usage rate is obviously improved, and economic income is increased by 15.2%; the bark is made into a bark blank according to the requirement, processing is facilitated, the bark crushing rate is reduced, the infiltration of the treatment solution is facilitated, and the processing efficiency is improved; the bark blank is placed into a hot edible alkaline solution, gaps between cells are increased, the pH of the bark is increased, and the bark fiber is softened; and an acetic acid solution is sprayed onto the alkali immersed bark, and freezing and unfreezing are conducted after spraying, so that the acetic acid solution quickly penetrates into the bark, residual edible alkali in the bark can be neutralized, after an acid-base neutralization reaction, cell gaps can be increased, and a fibrous structure can be rapidly softened.

The invention discloses bacteriostatic deodorant fabric which is prepared from, by weight, 40-45% of polyester fiber, 40-45% of cotton, 10-15% of polypropylene fiber and 3-5% of spandex. The bacteriostatic deodorant fabric has functional characteristics of being healthy, bacteriostatic, deodorant, capable of inhibiting odor and realizing one-way moisture guiding, quick in moisture adsorption and comfortable to wear and can bring more comfortable and decent wearing experience to users.

The invention discloses a textile storage cabinet, which comprises a cabinet body. Both sides of the bottom of the cabinet body are connected with air intake pipes, the left side of the inner cavity of the air intake pipe is fixedly connected with a fan, and the bottom of the air intake pipe is fixedly connected with The dust board is fixedly connected with a fixed column at the central axis of the inner cavity of the cabinet, and both sides of the fixed column are fixedly connected with heating blocks. In the present invention, cabinets, air intake pipes, blowers, dust-proof plates, fixed columns, heating blocks, drying lamps, openings, protective nets, collection units, temperature sensors, humidity sensors, information processing units, power supply modules, and data comparison units are arranged. , the information feedback unit, the control panel, the prompt unit and the universal wheel solve the problem that the existing textile storage cabinets do not have heating and prompting functions. The storage cabinet has the advantages of heating and prompting functions, avoiding the The occurrence of moisture regain and mildew inside enhances the practicality of this textile storage cabinet.

The invention mainly relates to the technical field of food processing, and discloses a preparation method of a fermented walnut. The preparation method of the fermented walnut comprises the steps of soaking, carrying out enzymolysis, fermenting, freezing, drying and packaging. The obtained fermented walnut is sweet and sour in taste, moderate in saltness and sweetness, and crisp in taste, has the selenium content being 19.17mug/100g and the fat content being 23.6 percent, does not contain any additive, and is safe and healthy; a walnut kernel is boiled in hot water, so that a little fat in the walnut kernel can be leached; meanwhile, the walnut kernel is cured, so that the fragrance of the walnut is increased; the walnut is soaked and then added into a selenium yeast solution so as to be subjected to lipase enzymolysis, so that the organic selenium content in the walnut is increased, the fat in the walnut is reduced, a health care function of the walnut is improved, the walnut is prevented from being oxidized, and the shelf life is prolonged.