58results about How to "Reduce health threats" patented technology

The invention discloses an automobile epidemic prevention and sterilization control method and device and a storage medium, and belongs to the technical field of vehicle engineering. The method comprises the steps that whether epidemic prevention and sterilization control needs to be conducted in an automobile or not is determined; and when it is determined that epidemic prevention and sterilization control needs to be conducted in the automobile, at least one ultraviolet lamp installed in the automobile is controlled to conduct ultraviolet irradiation in the automobile so as to conduct epidemic prevention and sterilization on the automobile. When it is detected that the automobile needs to be subjected to epidemic prevention and sterilization control, at least one ultraviolet lamp in theautomobile is controlled to conduct ultraviolet irradiation in the automobile, so that epidemic prevention and sterilization control over the automobile is achieved, and therefore bacteria appearing in the automobile and threats of the bacteria to the health of passengers are reduced.

The invention discloses an alcohol-dissoluble polyurethane resin compound printing ink and a preparation method thereof. The printing ink is prepared by processing the following components by weight percent: 25-35% of alcohol-dissoluble polyurethane resin liquor, 1-3% of polyvinyl butyral resin, 1% of extinction powder, 8-33% of pigment, 0-0.5% of an adhesion reinforcing agent, 15-40% of ethanol and 15-25% of ethyl acetate; and polyurethane resin in the alcohol-dissoluble polyurethane resin liquor accounts for 30-35% by weight percent. The printing ink has the advantages of environmental friendliness, safety, wide application scope, good thermal stability and the like.

The invention relates to potato chips and a preparation method thereof. The potato chips are prepared through the following steps: (1) washing potatoes, peeling off and cutting into potato slices of 2-3mm; (2) mixing Xinhui dried orange peel with water at the weight ratio of the Xinhui dried orange peel to water being 1:20, boiling a mixture for 20-30 minutes, and filtering so as to obtain a Xinhui dried orange peel extract; (3) soaking the potato slices into the Xinhui dried orange peel extract for 6 hours, fishing out, and drying in air for 3-4 days; (4) pouring the dried potato slices into an oil pot to be fried. The potato chips are crisp, has the fragrance of dried orange peel, and has the health-care effects of regulating qi-flowing for strengthening spleen, relieving cough and reducing sputum, and the like.

The invention discloses a method of cleaning fractures of steel failed components and belongs to the technical field of fracture analysis of steel failed components. Aiming at disadvantages of steel failed fracture cleaning methods at present, such as problems of inconvenient preparation of cleaning liquids, poor cleaning effects, and low cleaning efficiency, the method of cleaning the fractures of the steel failed components, which has characteristics of simple cleaning fluid preparation, simple and convenient operation, short consumed time, significant cleaning effects and easy monitoring, is provided. A hydrochloric acid solution is adopted as a cleaning liquid in the method, an ultrasonic wave cleaning technology is used in cooperation, and compact corrosives on the fracture surfaces are conveniently and efficiently removed under the premise of not damaging fracture morphological features. The method is easy to implement, low in energy consumption and suitable for cleaning of various metal failed component fracture surfaces.

The invention discloses a PPS (polyphenylene sulfide) composite material and a preparation method thereof. The PPS composite material is prepared by raw materials in percentage by weight as follows: 19%-49.5% of PPS, 50%-80% of heat conducting master batch taking PA (polyamide) 12 as a matrix and 0.5%-1.0% of a lubricating agent. According to the preparation method, the heat conducting master batch is firstly prepared by raw materials in percentage by weight as follows: 13%-19% of PA 12, 20%-65% of magnesium oxide with small particle size, 20%-65% of magnesium oxide with large particle size, 0.5%-1.0% of an antioxidant and 0.5%-1.0% of an lubricating agent; and the well prepared master batch, PPS and the lubricating agent are blended to prepare the PPS composite material. The PPS composite material prepared with the heat conducting master batch method is provided with high-filling heat conducting filler, has excellent processing property, impact strength and heat conduction property and is simple in process.

The invention discloses a feed crushing device. The feed crushing device comprises a shell, a feeding inlet, a first discharging pipe, a second discharging pipe, a stirring body, a crushing roller shaft, first crushing teeth, second crushing teeth and a vibrator, wherein the bottom end of the feeding inlet and the top end of the shell are in welded connection, the two ends of the stirring body andthe inner wall of the feeding inlet are in welded connection, the stirring body rotates through a rotating shaft, the two ends of the crushing roller shaft are in welded connection with the inner side of the shell, the inner side of a first crushing roller is in welded connection with the outer side of the crushing roller shaft, the inner side of a second crushing roller is also in welded connection with the outer side of the crushing roller shaft, one ends of the first crushing teeth are in welded connection with the side face of the first crushing roller, one ends of the second crushing teeth are in welded connection with the side face of the second crushing roller, one end of a dust suction pipe and the shell are in communicating connection, the other end of the dust suction pipe stretches into a water tank, one side of the vibrator and the shell are in welded connection, and one end of the vibrator is in matched connection with a first screen net. The feed crushing device conductsgraded screening on feed, and using is convenient and flexible.

The invention provides a special heat-salinity-resistant drag reducer for shale gas fracturing. The special heat-salinit-resistant drag reducer is prepared from the following raw materials by mass percent: 20-40 percent of nonionic monomers, 10-30 percent of salinity-resistant monomers, 1-10 percent of an emulsifier, 0.1-0.8 percent of an initiator, 0.1-1.5 percent of sodium bisulfite, 5-20 percent of an organic solvent, 1-3 percent of a phase inversion agent and the balance of deionized water. A manufacturing technology of the special slickwater resistance reducing agent comprises the steps of raw material mixing, modulation and modification, purification for impurity removal and modulation and modification. The manufacturing technology is simple, high in production efficiency and low in production cost, and can effectively reduce the production and application costs of the drag reducer, and meanwhile, the prepared drag reducer is quick in dissolution, low in energy consumption, good in shearing resistance, nontoxic, pollution-free and dust-free, nondestructive to health, good in fluidity, easy to operate, and high in heat-and-salinity resistance. Therefore, on one hand, the application requirements for shale gas exploitation are effectively met, and the exploitation cost is lowered, and on the other hand, damages caused by shale gas resource exploitation to the natural environment and threats caused by shale gas resource exploitation to the health of operators can be effectively reduced.

The invention provides high-efficiency building sand screening equipment. The high-efficiency building sand screening equipment comprises a base, a vibrating screen, a pretreatment box, a sand discharging hopper, a material guiding hopper, a rectangular leakage pipe, and a first rotating rod, wherein the vibrating screen is arranged at the top of the base; the pretreatment box is arranged above the vibrating screen; the sand discharging hopper is fixedly arranged at the top of the pretreatment box; the material guiding hopper is arranged below the pretreatment box; the rectangular leakage pipeis fixedly arranged at the bottom of the material guiding hopper, and the rectangular leakage pipe is matched with the vibrating screen; and the first rotating rod is rotationally arranged on the inner walls of the two sides of the pretreatment box, and one end of the first rotating rod extends out of the pretreatment box. The high-efficiency building sand screening equipment has the advantages that sand can be evenly scattered and dewatered, the sand screening efficiency and quality are improved, and the sand screening environment is improved.

The invention provides a municipal construction waste cyclic crushing device and a using method thereof. A municipal construction waste cyclic crushing device comprises a treatment box with an openingin the top, a crushing mechanism arranged in the treatment box, a feeding box fixedly mounted on the outer wall of one side of the treatment box, a packing auger rotationally mounted on the inner walls of the top and the bottom of the feeding box, a first motor fixedly installed at the bottom of the feeding box, and a feeding pipe fixedly installed on the feeding box, wherein an output shaft of the first motor is fixedly connected with the bottom end of the packing auger, and one end of the feeding pipe is fixedly connected with one side of the treatment box. The municipal construction wastecyclic crushing device and the using method thereof have the advantages that construction waste can be pretreated, the subsequent crushing effect and crushing efficiency are improved, dust flying is reduced, and the working environment quality is improved.

The invention provides an expanding rust-preventing spot welding structural sealant for a car, and a preparation method thereof. The preparation method comprises the following steps: preparing 7-20 parts of master batch, 8 parts of aluminium hydroxide, 3 parts of calcium oxide and 3 parts of TXIB, kneading the prepared raw materials for 30 minutes on a kneader; adding in 6 parts of aluminium hydroxide, 5 parts of a rust inhibitor, 8 parts of conductive carbon black and 5 parts of TXIB for kneading for 15 minutes in the kneader to enable materials to be conglomerated; adding in 7 parts of nano-calcium, 3.5-10 parts of liquid butadiene, 3-25 parts of bisphenol F epoxy resin and 3 parts of TXIB for kneading for 25 minutes in the kneader; adding in 5 parts of coarse whiting, 0.3-0.5 part of DCP-40, 0.2-0.5 part of DM, 1-4 parts of superfine dicyandiamide and 3 parts of an ethenyl physical foaming agent for kneading for 20 minutes in the kneader; adding in 6-27.5 parts of acrylate mixed epoxy resin in the core-shell structure for kneading for 10 minutes in the kneader; adding in 1.5 parts of TXIB; reserving 1.5 parts of TXIB for adjusting viscosity. The structural sealant after curing is high in strength, good in tenacity and excellent in rust prevention.

The invention discloses a device for dyeing and ironing-into-bolt of textile fabrics. The device for dyeing and ironing-into-bolt of the textile fabrics comprises a device box body, a hydraulic cylinder is fixedly installed in the device box body, and two groups of front-and-back symmetrical dyeing hydraulic chambers are formed in the device box body. A dyeing oil pipeline is arranged between thedyeing hydraulic chambers and the hydraulic cylinder, and an ironing cavity and a working cavity are formed in the device box body. The device is provided with a cleaning device to automatically cleanthe textile fabrics, and the up-and-down position of the cleaning device can be automatically adjusted according to the pressure on the fabrics during cleaning, so that the fabrics are uniformly stressed during cleaning, and the cleaning quality is ensured while the fabrics are not damaged due to excessive pressure. The device is further provided with an ironing device which can be used for ironing and drying the dyed fabrics, the fabrics are leveled and conveniently made into bolts. The device is internally provided with a traction device to facilitate the replacement and transportation of afabric roller, efficiency is improved, and the threat to the health of employees is reduced.

The invention discloses an industrial coating spraying device with a purification function, and belongs to the technical field of industrial coatings. The industrial coating spraying device with the purification function comprises a coating spray gun, a coating spray nozzle, a spray pipe, an annular material suction plate, a filter disc insertion block, an air suction pipe and a purification box,the spray pipe is arranged in the interior of the coating spray gun used for spraying coatings, the left side of the spray pipe is connected with the coating spray nozzle, the annular material suctionplate is fixedly installed around the coating spray nozzle, the filter disc insertion block is arranged on the right side of the annular material suction plate and movably installed on the coating spray gun, the air suction pipe is arranged on the right side of the filter disc insertion block and comprises an activated carbon box and an air suction pump, and the activated carbon box is arranged on the left side of the air suction pump. According to the industrial coating spraying device with the purification function, the annular material suction plate and the material suction cavity are installed at the front end of the coating spray gun, and therefore redundant coating particles generated during spraying of the coating spray nozzle can be sucked to the interior of the material suction cavity to be purified, the threat of the scattered coating particles to the health of a user in the spraying process can be effectively reduced, and meanwhile, the possibility that the coating particles are attached to surrounding objects is reduced.

The invention discloses hericium erinaceus chips and a preparation method thereof. The hericium erinaceus chips are prepared from the raw materials in parts by weight: 80 to 100 parts of potato slices, 20 to 40 parts of hericium erinaceus, 10 to 15 parts of pericarpium citri reticulatae, 3 to 6 parts of radix ginseng, 4 to 8 parts of fructus nitrariae tangutori and 3 to 6 parts of pungent litse fruit. The preparation method comprises the steps: 1) weighing the hericium erinaceus, the pericarpium citri reticulatae, the radix ginseng, the frutus nitrariae tangutori and the pungent litse fruit according to matching, evenly stirring, mixing with 30 to 50 times quantity of water, stirring, evenly mixing, heating to 60 to 70 DEG C and keeping for 20 to 30 minutes; keeping 70 to 80 DEG C for 10 to 30 minutes; keeping 90 to 120 DEG C for 15 to 25 minutes; then naturally cooling to room temperature and filtering to take filtrate; 2) weighing 80 to 100 parts of potato slices, ultrasonically soaking the potato slices in the filtrate obtained in the step 1) for 1 to 2 hours and then fishing out to be air dried, wherein the air drying time is 3 to 4 days; and 3) pouring the air dried potato slices into an oil fryer to be fried. The potato chip has a low oil content and further has an effect of promoting digestion and appetite.

According to the public place water quality sampler, a bottle sleeve and a sealing film are arranged outside an adopted sampling bottle, the joint of the bottle sleeve and an annular groove of a communication module is separated during multiple times of sampling, it is guaranteed that a sampling bottle opening is located in the communication module during sampling, and the situation that a water sample is directly irradiated by sunlight is also avoided; a disposable sealing film is arranged at a bottle opening, and an air suction pipe and a stabilizer spray pipe are communicated with a sampling bottle in a puncturing manner, so that insufficient air tightness in the bottle during air pumping of an air suction pump is prevented, and the sampling bottle is prevented from being polluted by bacteria in an external environment during sampling, and a telescopic sampling rod and a servo motor positioned at the end part of the telescopic sampling rod are also adopted; the telescopic sampling rod and the servo motor are controlled to zoom through a roller switch, and the extension lengths of the the telescopic sampling rod and the servo motor and the lowering depth of the lifting line can be observed through a display screen, so that the accuracy of multi-point sampling is ensured, and the influence of an operation error of a worker on a sampling result is reduced; the problems that workers are difficult to strictly sample according to specifications in different environments and the health is easily harmed are solved.

The present invention discloses a portable cigarette smoke collecting filter, which comprises a smoke collecting device and a smoke filtering device, wherein the smoke collecting device comprises an opened smoke absorbing and holding chamber, the smoke filtering device comprises a filtering channel, a filtering sheet and an exhaust fan, the filtering sheet and the exhaust fan are arranged inside the filtering channel, the filtering channel is communicated with the opened smoke absorbing and holding chamber, the filtering sheet is arranged on the inner side of the filtering channel inlet, and the exhaust fan is arranged on the inner side of the filtering channel outlet. Compared with the portable cigarette smoke collecting filter in the prior art, the portable cigarette smoke collecting filter of the present invention has the following characteristics that: the cigarette smoke discharged by the individual can be effectively collected and can be treated by the smoke filtering device so as to remove tar, particulates and other pollutants, such that the pollution of the cigarette smoke on the surrounding environment can be reduced, and the health threat of the cigarette on the surrounding population can be reduced.

The embodiment of the invention discloses a paint production dispersion machine which comprises a blade rod, a dispersion disc, an opening tank cover, a dispersion tank, a multi-hole connecting part,an exhaust tube, a fan and a gas collection device, wherein the dispersion tank is sleeved by the opening tank cover; a dispersion disc through hole is formed in the middle of the opening tank cover;the multi-hole connecting part comprises a cylinder with a first through hole and a second through hole respectively formed in two ends; a third through hole which protrudes outwards is formed in a side wall of the cylinder; the blade rod penetrates through the first through hole and the second through hole; the first through hole is connected with the blade rod in a sealed manner; the second through hole is detachably connected with the dispersion disc through hole in the sealed manner; the third through hole is connected with the exhaust tube in the sealed manner; the exhaust tube is connected with the air inlet of the fan; the air outlet of the fan is connected with the gas collection device; a gas adsorbent is arranged inside the gas collection device. By adopting the paint productiondispersion machine disclosed by the embodiment of the invention, the problem that in the prior art, a great amount of a paint raw material is volatilized into the air when dispersion tanks are replaced is solved.