59results about How to "Production environment safety" patented technology

The invention provides a method for preparing suede waterborne polyurethane superfine fiber synthetic leather. The method comprises the following steps of: obtaining superfine fiber waterborne polyurethane synthetic leather bass by taking a polyamide 6/polyethylene (PA6/PE) bicomponent fiber non-woven fabric as a base material by a cationic waterborne polyurethane impregnation/demulsification agglomeration composite method and a methylbenzene decrement fiber separation method; and finally, obtaining the suede waterborne polyurethane superfine fiber synthetic leather by strong acid dye and weak acid dye matched dyeing and buffing after-treatment technologies. The problem of dimethyl formamide (DMF) pollution which is caused by a current solvent type production system, the problem of product safety which is caused by the residue of DMF in products, and the problems that heavy metals can exceed the standard easily and the heat migration resistance of dyes is low are solved.

The invention provides a production method for waterborne polyurethane synthetic leather wet process impregnated bass, comprising the following steps of: preparing impregnation liquid by using waterborne polyurethane, filler and water; preparing solidification liquid by mixing a demulsification cross-linking agent with water; saturating a non-woven fabric by the impregnation liquid through an impregnation groove, and extruding some impregnation liquid in the non-woven fabric by a pair of rollers; enabling the non-woven fabric with the impregnation liquid to pass through a solidification groove filled with a coagulating agent to form porous filler by the waterborne polyurethane coagulated by the coagulating agent and the filler, and filling the filler in the non-woven fabric; and washing by water, extruding water and drying to obtain the waterborne polyurethane synthetic leather wet process impregnated bass. The product produced by the invention has the extremely similar microcellular structure, and is better in physical and mechanical properties, water vapor penetration performance, and hand feel characteristic. According to the production method, the solvent pollution problem of DMF (dimethyl formamide) and the product safety problem caused by the residue of the DMF in the production of solvent type polyurethane wet process impregnated bass can be solved.

The invention discloses a process for preparing the aqueous solution of glyphosate ipa salt and the its herbicide composition characterized by that, stirring and sustaining the temperature below 30 deg. C, dissolving glyphosate ortho acid into ammonia, and reacting with isopropyl amine aqueous solution to prepare glyphosate isopropyl amine salt aqueous solution, then filling auxiliary agent to produce the herbicide composition. In the herbicide composition, the quality content of glyphosate 2-aminopropane salt, ammonia, and auxiliary agent are 30%-50%, 2%-4%, and 5%-15%, the rest is water. The advantages of the invention are smooth and steady reaction, safety and reliability, economy and utility, and fine weed control effect.

The invention belongs to the technical field of the production of titanium dioxide and in particular relates to a preparation method of hydrated titanium dioxide double-effect seed crystal. The preparation method comprises the following steps: adding sulfuric acid in metatitanic acid slurry to prepare titanium sulfate solution, using titanium sulfate solution and sodium carbonate to react and generate titanic acid, and using monoprotic acid to neutralize titanic acid and obtain the finished product. The hydrated titanium dioxide double-effect seed crystal can be a solid object with a certain water content or slurry of which concentration is less than 220g/L (calculated by TiO2). The rutile-type TiO2 content of the seed crystal is 5-95% of the total weight of TiO2 and the seed crystal also contains anatase TiO2 and amorphous TiO2. The seed crystal is added in the hydrolysis process of titanium-containing solution, wherein the weight percentage is 1-3% which is calculated by TiO2; and after hydrolysis, new rutile-type seed crystal is not required to be added in the calcining link.

The invention provides a device and a method for adding a liquid additive. The device comprises a storage tank, a material barrel, a connecting pipe, filters, an input pump, a central controller, a temperature controller, liquid level meters, nozzles, an adding pump, a flow meter and a control valve, wherein, the flow meter is a gear volumetric flow meter; a shell of the flow meter is internally equipped with two rotors which are directly meshed with each other and rotate under the action of pressure difference between an inlet and an outlet of the flow meter; the flow meter continuously discharges fluid which is filled in a metering space between a gear and the shell by means of rotation of the gear; and the flow meter obtains the fluid passing through the same by measuring rotating times of the gear. The device has the advantages of high and stable adding precision and accurate electrical control, thus effectively reducing labor consumption and raw material waste during the production process, and reaching an optimal service condition during the production process.

The invention relates to a method for preparing a Chinese medicinal composition and application, in particular to a method for preparing capsules containing prepared rehmannia root, white paeony root, Chinese angelica and szechuan lovage rhizome and application, and aims to provide a method for preparing a high-yield capsules containing prepared rehmannia root, white paeony root, Chinese angelica and szechuan lovage rhizome and application of the capsules in the preparation of medicaments for treating alopecia and leukotrichia. The method for preparing the capsules containing prepared rehmannia root, white paeony root, Chinese angelica and szechuan lovage rhizome comprises the following steps of: preparing content granules, and filling into capsules, wherein a method for preparing the content granules comprises the following steps of: crushing, performing enzymolysis, filtering, washing, distilling to extract volatile oil, adding water to extract extract of decoction containing prepared rehmannia root, white paeony root, Chinese angelica and szechuan lovage rhizome, drying to prepare extract granules of the decoction containing prepared rehmannia root, white paeony root, Chinese angelica and szechuan lovage rhizome, mixing the volatile oil and the extract granules of the decoction containing prepared rehmannia root, white paeony root, Chinese angelica and szechuan lovage rhizome, and preparing the content granules. The invention also relates to the application of the capsules containing prepared rehmannia root, white paeony root, Chinese angelica and szechuan lovage rhizome in the preparation of the medicaments for treating alopecia and leukotrichia.

The invention provides a device and a method for dehydrating and dehumidifying wellhead natural gas, and belongs to the technical field of natural gas. The device comprises a gas-liquid preseparator,a heat exchanger, a first-stage gas-liquid separator, a throttling tube, a final-stage gas-liquid separator, and control valves on all pipeline. Free water in water-containing high-pressure wellhead natural gas is removed in the gas-liquid preseparator to obtain a preliminarily dehumidified wet natural gas, then the preliminarily dehumidified wet natural gas successively enters the heat exchangerand the first-stage gas-liquid separator to achieve cooling, separation and dehumidification, the dehumidified gas is depressurized and cooled by the throttling tube, and then enters the final-stage gas-liquid separator, and a gas obtained after the separation is natural gas that meets the moisture requirement, wherein all or a part of the natural gas is recovered by the heat exchanger, and then is imported to an outside natural gas transporting pipeline network. The device has the advantages of no moving parts, simple structure and high reliability, and realizes organic combination of coolingcondensation and water removal separation only by using the self energy conversion of the natural gas without outside energy input in the running process in order to achieve the purpose of dehydrating and dehumidifying the wellhead natural gas.

The semi-automatic production process of savoury chicken includes the steps of amending, scalding, boiling, draining, cooling and packing as well as special front temperature stabilizing, secondary boiling, and cooling and seasoning. Chicken is first soaked in constant temperature tank at 30 deg.c, then boiled at 95 deg.c in boiling tank with slice of recipe A and soaked in soaking tank at 85 deg.c to cook, and finally quick frozen in ice water tank with slice of recipe B. The hot water in boiling tanks is provided with higher constant temperature tank and is controllable and stable, and the circular utilization can reduce power consumption. Water temperatures are controlled automatically with temperature controlling meters and solenoid valves. The present invention has high product quality, delicious product, hygienic production environment and industrialized production.

The invention discloses an externally-applied medicament for treating infantile eczema and senile pruritus and a preparation method thereof. The externally-applied medicament is prepared from the following raw materials in percentage by mass: 2 percent of carboxymethyl chitosan, 1 percent of lightyellow sophora root, 0.5 percent of zingiber corallinum hance oil, 0.5 percent of Tween-80, 0.1 percent of ethylparaben and the balance of purified water. The preparation method comprises the following steps of: (1) preparing materials; (2) putting the carboxymethyl chitosan, lightyellow sophora rootand the purified water into a stirrer, heating and stirring, and continuing to stir and mix uniformly after the mixture is dissolved to prepare mixed liquor for later use; (3) putting the zingiber corallinum hance oil, the Tween-80 and the ethylparaben into a vacuum emulsification tank, heating, emulsifying, and standing to prepare volatile oil for later use; and (4) putting the mixed liquor and the volatile oil into a homogenizer, stirring and mixing uniformly at a high speed, filtering, checking out and filling to obtain the externally-applied medicament. The externally-applied medicament can improve the life quality and health condition of patients, is simple in formula, easy to prepare, stable in production process, safe in production environment and pollution-free, and is one of substituted products in the conventional medicaments for relieving itching.

The invention discloses chestnut-flavor mutton and a processing method thereof. The chestnut-flavor mutton is prepared from following raw materials in parts by weight: 60-80 parts of fresh mutton, 20-30 parts of chestnuts, 3-5 parts of chestnut leaves, 3-4 parts of rhodiola rosea, 2-3 parts of ligusticum wallichii, 1-3 parts of lucid ganoderma, 1-2 parts of gentiana scabra bunge, 3-4 parts of hedyotis diffusa, 2-3 parts of subprostrate sophora, 2-4 parts of thymus mongolicus, 2-3 parts of polygala tenuifolia, 1-2 parts of albizia julibrissin, 3-5 parts of soybean sauce, a suitable amount of table salt and 5-8 parts of a nutrition additive. According to the chestnut-flavor mutton and the processing method thereof, the operation is simple, and raw material sources are wide; the production environment is safe and sanitary; the mutton, the chestnuts and various health-care traditional Chinese medicine components are combined to produce ideal mutton with health-care effects for preventing diseases including hypertension, arteriosclerosis, osteoporosis and the like.

The invention relates to a pre-delivery, delivery and mother-child care integrated delivery room which is composed of a pre-delivery living room, a pre-delivery delivery room body and a toilet room which are separated through separation walls. A footstool, a shoe cabinet, a covered garbage bin, a refrigerator, an air conditioner, a TV set, a sofa or sofa bed, a tea table, an air purifier, potted plants and the like are arranged in the pre-delivery living room. A non-drug labor analgesia system, a storage table, a bed, a cabinet, a Doula tool box, a delivery stand, a delivery ball holder, a Doula delivery ball, a birthstool, a delivery trolley, an infant scale, a fetus guarding instrument and the like are arranged in the pre-delivery delivery room body. A washbowl, a moving cart, a flush toilet, a shower and the like are arranged in the toilet room. The appliances for pre-delivery, delivery and mother-child care are integrated in the delivery room, and a complete set of pre-delivery, delivery and mother-child care work can be completed; and a safe, comfortable, cozy and happy delivery environment is created for a puerpera, the puerpera can perform natural delivery merrily, the level of delivery pains is low, and both the mother and child are healthy advantageously.

The invention discloses health-maintaining mutton paste and a processing method thereof. The health-maintaining mutton paste is prepared from following raw materials in parts by weight: 30-40 parts of mutton, 50-60 parts of soybeans, 5-8 parts of vegetable shortening, 0.2-0.4 part of potassium sorbate, 3-5 parts of bunge cherry seeds, 3-5 parts of peach kernels, 2-3 parts of stevia rebaudiana, 1-2 parts of asparagus cochinchinensis, 2-4 parts of plant soot, 2-3 parts of lalang grass rhizomes, 1-3 parts of fructus liquidambaris, 6-8 parts of yellow rice or millet wine, 3-5 parts of table salt and 6-8 parts of a nutrition additive. According to the health-maintaining mutton paste and the processing method thereof, the operation is simple, and raw material sources are wide; a manufacturing environment is safe and sanitary; the mutton paste produced by the method has pure color and luster, has a sauce flavor, is delicious and mellow and has abundant nutrition; the healthy diet requirements of modern people can be met.

The invention discloses a neutral rust remover and a preparation method thereof. The neutral rust remover comprises the following components by weight: 72-85% of water, 10-20% of hydroxyethylidene diphosphonic acid, 2-3% of malic acid, 1-2% of sodium alginate, 0.5-1% of polyacrylic alcohol PPG2000, 0.1-0.5% of triethanolamine, 0.1-0.5% of fatty alcohol polyoxyethylene ether, and 0.1-0.5% of a corrosion inhibitor. The product prepared by the method has a near-neutral pH value under working conditions, the damage to the human body is negligible even in direct contact, no bubble is generated during work, and no acid mist is generated, so that the production environment is greatly improved; and the neutral rust remover only acts on the surface rust of the workpiece without corroding the iron substrate, no excessive corrosion exists, the processing size is not influenced, and the processing safety is high.

The invention belongs to the technical field of drying equipment and relates to an electromagnetic drying chamber. The drying chamber comprises a chamber body, partition plates, a moisture dischargingdevice, a heating device, a surface air cooler, a high-temperature fan, a heat conduction liquid outlet pipe, a heat conduction liquid inlet pipe and a circulation pump. The partition plates comprisethe first partition plate and the second partition plate; the moisture discharging device comprises an inner moisture pipe, a heat exchanger, a moisture discharging fan and an outer moisture discharging pipe which are sequentially connected; the heating device comprises an electromagnetic inductor, an electromagnetic heating controller, a display, a three-phase short-circuit protection switch anda three-phase four-wire connecting terminal; and the electromagnetic inductor comprises a metal heating body, a heat insulation layer and an induction coil. By utilizing the electromagnetic drying chamber, through the electromagnetic heating principle, the metal heating body emits heat and heats a heat conduction medium, the heat energy loss is less, energy is saved, and the heat utilization rateis high; through air duct circulation and the design of the moisture discharging device, temperature control is accurate, and the drying efficiency is high; and through complete separation of heat conduction liquid and a circuit, safety and environmental protection are achieved, and the life is long.

The invention provides a synthesis method of chickpea dentin A, which solves the problems of incomplete reaction, easy caking of a reaction system and low yield due to use of reagents with high risk during synthesis of chickpea dentin A in the prior art. The preparation method comprises the following steps of introducing dry hydrogen chloride gas into anhydrous phloroglucinol and p-methoxyphenylacetonitrile in ethyl acetate to carry out Houben-Hoesch condensation reaction, hydrolyzing the condensation product to obtain an intermediate, and cyclizing the intermediate in acetone by propionyl chloride and sodium formate to obtain the chickpea dentin A.

The invention provides coal mine accident prevention and control operation environment detection equipment which comprises a detection device, a communicating pipe is fixed to the right end of the detection device, a mixing device is fixed to the upper end of the communicating pipe, an exhaust fan is fixed to the right end of the mixing device, and an air inlet pipe is fixed to the right end of the exhaust fan. A quantitative gas inlet device is fixed to the right end of the air inlet pipe, a cleaning device is fixed to the lower end of the air inlet pipe, quantitative gas at different heightscan be well collected through the quantitative gas inlet device, and therefore the different gas contents can be detected, and when the gas content at a certain height needs to be measured, the rotating nut is rotated to be not in contact with the plate body, so that the screw can be prevented from driving the plate body to move up and down, the height of air entering the plate body can be well adjusted, and the content of gas in a coal mine operation environment is kept within a safe range.

The invention relates to the field of coal mines, in particular to an air door air pressure control device for the coal mines. The air door air pressure control device comprises a door frame and a track rail, the door frame is internally provided with a sealing door, the outer wall of the bottom of one side of the sealing door is provided with a pulling mechanism, the inside of the pulling mechanism is provided with a fixing block, four rotating claws are welded to the outer wall of one side of the fixing block, pins are inserted inside the four rotating claws, L-shaped brackets are arranged at the ends, far away from the fixing block, of the rotating claws, and three pulling claws are welded to the outer wall of the end, close to the corresponding rotating claw, of each L-shaped bracket.The air door air pressure control device has beneficial effects that the friction between the sealing door and the door frame can be reduced, the requirement of frequent door opening during entering and leaving of a mine car can be met, the collision between the sealing door and the mine car can be can reduced, the safety of the sealing door is increased, freshness of air in the coal mines can beimproved, the energy of the coal mines can be improved, fully-automated operation of an actuator is achieved, and a more convenient working environment is provided for miners.

The invention relates to a quick detachment and installation type pipeline chemical reactor with a continuous flow passage. The quick detachment and installation type pipeline chemical reactor is provided with a reaction raw material inlet and a reaction product outlet of the original pipe type chemical reactor, and consists of a reaction pipe, a temperature adjusting pipe, a heat-insulation medium and a decoration pipe from interior to exterior, wherein both ends of the reaction pipe are respectively connected with the reaction raw material inlet and the reaction product outlet; a static mixer is arranged in the reaction pipe; a heat/cold medium fluid is filled into the temperature adjusting pipe according to requirements; the heat-insulation medium layer is used for coating the temperature adjusting pipe; the decoration pipe is covered to the outer surface of the heat-insulation medium layer, and decoration covers are arranged at both ends of the decoration pipe. The quick detachmentand installation type pipeline chemical reactor has the advantages that 1, the structure is simple, the layout is compact, the appearance is attractive, and the occupation land is small; 2, the reaction mass transfer efficiency is high; 3, the temperature of the reactor can be precisely controlled; 4, the reaction temperature and pressure range are large; 5, the reaction is sufficient, and the yield rate is high; 6, the reaction is performed in a sealed space, so that the combustion explosion risk is decreased, and the production environment is safe; the quick detachment and installation typepipeline chemical reactor is suitable for the single-phase reaction of vapor phase or liquid phase, and multi-phase reaction of gas-liquid phase, liquid-liquid phase, gas-liquid-solid (suspended type) phase and the like.