51results about How to "No harm" patented technology

The invention belongs to the field of magnesium alloy preparation, and particularly relates to an extruded microalloyed magnesium alloy with aging performance and a preparation method of the extruded microalloyed magnesium alloy. In order to overcome the defects in the prior art, the invention aims to provide magnesium alloy components and process design which are low in alloying degree and capable of remarkably enhancing the mechanical property of the magnesium alloy through aging heat treatment. The magnesium alloy comprises the following elements in percentage by mass: 0.11% of calcium, 0.48-0.49% of manganese, 0.99-1.04% of aluminum, 1.09-1.59% of zinc and the balance of magnesium and inevitable impurities, and the content of the inevitable impurities is not more than 0.05%. The magnesium alloy material contains low alloy element content, the grain refinement phenomenon is generated through high-speed extrusion, and the mechanical property of the material can be further improved through a follow-up aging treatment means.

The invention provides an H9N2 avian influenza virus attenuated strain as well as a preparation method and application thereof, and belongs to the technical field of virus attenuation. The invention provides an attenuated strain of an H9N2 type avian influenza virus. The attenuated strain is obtained by modifying an M2 gene; the modification comprises the following steps: carrying out synonymous mutation on overlapped genes for coding the M1 protein and the M2 protein, replacing adjacent genes subjected to synonymous mutation with genes for coding termination codons, and carrying out deletion mutation on intracellular structural domain genes for coding the M2 protein. The H9N2 type avian influenza virus attenuated strain disclosed by the invention can be used for preparing an H9N2 type avian influenza virus attenuated vaccine. After chickens are immunized with the H9N2 avian influenza virus attenuated vaccine, a high-level hemagglutination inhibition antibody can be induced, no toxin is expelled after the chickens are immunized, safety is high, potential harm to the environment is avoided, and a new strategy is provided for prevention and control of H9N2 avian influenza.

The invention discloses an injection molding machine box body structure, and relates to the technical field of injection molding machine box equipment, the injection molding machine box body structure comprises a placing box and also comprises a dismounting device, the surface of the placing box is provided with a sealing door, the top of the inner wall of the placing box is fixedly provided with a smoke alarm, and the surface of the placing box is fixedly provided with a placing plate; a placement rod is fixedly installed on the surface of the placement plate, a fire-fighting tank is fixedly installed at the top of the placement box, a fire extinguishing pipe is fixedly installed at the bottom of the fire-fighting tank, the fire-fighting tank communicates with the interior of the placement box through the fire extinguishing pipe, and a sliding plate moves in the direction away from the placement plate to drive a maintenance plate to move; the maintenance plate moves to remove sealing of the maintenance hole, the injection molding machine in the placing box is exposed for maintenance, the box body structure convenient to disassemble enables maintenance personnel to rapidly check and maintain the injection molding machine in the placing box, and the continuity and safety of working of the injection molding machine can be ensured by arranging the mistaken touch prevention device.

The invention discloses a composite deodorizing agent and a preparation method thereof, the composite deodorizing agent is composed of the following components: a plant extraction component, the plant extraction component comprises a tea extract, a ginger extract, an oak leaf extract, a lavender extract, a licorice extract, a green persimmon extract, a pine bamboo extract and a schizonepeta extract; the microbial component comprises a proteolytic enzyme, an aldehyde hunting factor and nano diatomite; the auxiliaries comprise a stabilizer, titanium dioxide with a topological structure, syringol, a fermented rice product, an odor modifier, a chelating agent, an antioxidant, a plant preservative and a solvent. The deodorization effect of plants and microorganisms can be effectively integrated, the deodorization capacity after compounding is improved, and the safe and environment-friendly deodorization process is achieved.

The utility model discloses a poultry breeding factory capable of improving the breeding environment, which relates to the technical field of poultry breeding and comprises an air purification device located in a workshop. A breeding room is arranged on one side of the working room; one end of the air purification device is fixedly connected with an air supply main pipeline and an air return pipeline, and the other end is fixedly connected with an air inlet pipeline and an exhaust pipeline; the ends, away from the air purification device, of the air supply main pipeline and the air return pipeline communicate with the breeding room. During use, outside air enters the air purification device through the air inlet pipeline, purified air enters the two auxiliary air supply pipelines through the air supply main pipeline and then is discharged into the breeding room through the multiple air outlets, and meanwhile the air return pipeline can suck contaminated air in the breeding room into the air purification device. And then the air is exhausted to the outside through the exhaust pipeline, so that air replacement in the breeding room is completed, and a good environment is kept in the breeding room.

The invention provides a hydrophobic water-containing powder explosion suppressant suitable for gas explosion. The hydrophobic water-containing powder explosion suppressant comprises the following components in percentage by mass: 5-15% of hydrophobic nano solid particles, 5-15% of a water-soluble fire extinguishing component, 1-2% of organic gel and the balance of water, and the water-soluble fire extinguishing component is prepared from magnesium hydroxide and zinc borate in a mass ratio of (1: 2)-(2: 1); gel liquid drops formed by the water-soluble fire extinguishing component, the organic gel and water are coated by hydrophobic nano solid particles to form the hydrophobic water-containing powder explosion suppressant with a shell-core structure, the hydrophobic water-containing powder explosion suppressant has a remarkable suppression effect on gas explosion, efficient suppression on gas explosion is achieved, and the preparation method is simple and environmentally friendly.

This invention discloses a strain of *Pseudomonas aeruginosa* that produces volatile gases and antagonizes *Morchella esculenta*, the pathogen causing *Fusarium wilt*. Pseudomonas chlororaphis subsp. aurantiaca YX3, deposited at the China General Microbiological Culture Collection Center (CGMCC) with accession number CGMCC NO: 26192, is a strain of this invention that produces volatile gases on NA solid medium that antagonize morel wilt fungi. It significantly inhibits the mycelial growth and spore germination of morel wilt fungi and can be used to prepare fumigants for inhibiting morel wilt fungi. It is safe, efficient, and easy to operate, and has broad application prospects.

The present application relates to a kind of anticoagulation, anti-oxidative stress hemodialysis apparatus and preparation method, belong to biomedical polymer and hemodialysis field.Oxygen-containing functional group carbon dots, anticoagulation monomer, initiator and crosslinking agent are added into water, to obtain modified liquid of anticoagulation and anti-oxidation;Protective gas is introduced into hemodialysis apparatus to remove oxygen, then modified liquid is introduced into dialysis apparatus, then sealing heating is carried out to initiate anticoagulation monomer in situ polymerization on the surface of dialysis membrane, and the oxygen-containing functional group carbon dots form gel microspheres under the wrapping of polymer, i.e., anticoagulation, anti-oxidative stress hemodialysis apparatus is obtained.The APTT of modified dialysis apparatus can reach 600s, and the removal rate of DPPH and ABTS free radicals is 71.25% and 97.47% respectively.The present application only needs to carry out one-step surface modification to dialysis apparatus finished product, which can give hemodialysis apparatus the dual functions of anticoagulation and anti-oxidative stress, is simple and convenient, and has good application prospect.

This invention relates to a polyester with antibacterial and antiviral functions, its preparation method, and its application. The polyester with antibacterial and antiviral functions is a cationic polymer guanidine salt-supported antibacterial and antiviral polyester. The preparation method includes the following steps: modifying the cationic polymer guanidine salt with a compound containing multiple functional groups to obtain a reactive antibacterial and antiviral adjuvant; during the polymerization of the polyester, adding the reactive antibacterial and antiviral adjuvant, terephthalic acid, diol, and catalyst in a single batch to a polyester reactor to obtain an antibacterial and antiviral random copolyester; or, copolymerizing the reactive antibacterial and antiviral adjuvant with diethyl terephthalate (BHET) to obtain an antibacterial and antiviral copolyester. Compared with the prior art, the polyester obtained by this invention exhibits no dissolution of the antibacterial and antiviral components, uniform dispersion, excellent durability, and good color value in the resulting fiber product.

The application discloses a kind of pure natural demulsification granules preparation method and its application method, comprising the following steps: selecting dry lotus, the lotus is segmented, the segmented lotus is sent into pulverizer and broken into powder, the final powder is screened by screen mesh, the raw material of powder passing through screen mesh is obtained, lotus powder is obtained, finally lotus powder is placed in oven and dried, it is demulsification granule, the method utilizes the composition characteristics of dry lotus powder with oil-water amphiphilic, the hydrophobic part of lotus can be combined with the oil-loving group in surfactant, thereby causing the rupture of emulsion interface, so that oil droplets in rolling oil emulsion cannot be stably dispersed in water phase, the balance of oil phase and water phase in emulsion is destroyed, and finally the effect of demulsification is achieved, and after demulsification is completed, the property of plant granule is not easy to change, even if oscillation, it is also not easy to emulsify again, and the use time of the whole demulsification is shorter, and the solution is stable.

The invention discloses an ALS inhibitor sulfonylurea herbicide as well as a preparation method and application thereof, relates to the technical field of herbicides, and comprises 22 compounds with structures as shown in a general formula I or optical isomers, crystal forms, pharmaceutically acceptable salts, hydrates or solvates thereof as well as a preparation method and application thereof. After the medicines are reasonably matched, the herbicide has a relatively good control effect on gramineae or broad leaf, and the herbicide disclosed by the invention does not cause harm to soil and environment.

The invention discloses a reagent for detecting African swine fever virus gene type II and application of the reagent. The reagent comprises a primer group, the primer group comprises a forward primer with a sequence as shown in SEQ ID NO: 2 and a reverse primer with a sequence as shown in SEQ ID NO: 3. Compared with other similar kits, the kit for detecting the African swine fever gene type II, provided by the invention, has the advantages that the sensitivity can be remarkably improved through the design of the primers, the specificity is high, the sensitivity is high, the amplification efficiency is high, the detection time is short and the like; according to the kit provided by the invention, a user does not need to carry out reagent split charging, the extracted sample nucleic acid is directly added into the pre-split freeze-dried reagent to be detected in a fluorescent PCR instrument, and the operation is simple and rapid.

The invention relates to the technical field of lubricants for metal processing, in particular to a carbon steel stamping oil composition and a preparation method thereof. The carbon steel stamping oil composition is prepared from the following preparation raw materials in parts by weight: 40 to 80 parts of base oil, 10 to 20 parts of an oiliness agent, 5 to 20 parts of a viscosity improver, 5 to 15 parts of an extreme pressure anti-wear agent, 2.5 to 5 parts of a surfactant, 3 to 5 parts of oleic soap and 0.2 to 1 part of an anti-rust agent, the extreme pressure anti-wear agent comprises phosphate ester and phosphite ester or phosphate ester ammonium salt; the mass ratio of phosphate to phosphite or phosphate ammonium salt is (2-5): 1; the surfactant comprises at least one of fatty alcohol polyether, span 80, nonylphenol polyoxyethylene ether and fatty alcohol polyoxyethylene ether phosphate. The carbon steel stamping oil composition provided by the invention has high lubricity, good heat dissipation and extreme pressure antiwear property, and can meet the processing requirements of high-strength carbon steel.

This invention provides a recombinant acetyl-CoA carboxylase encoding gene and its applications. Mutations at positions 5374, 5229, 5335, 5336, and 5493 in the recombinant acetyl-CoA carboxylase encoding gene provided by this invention can induce more significant resistance in rice expressing this recombinant acetyl-CoA carboxylase. In particular, it shows a significant increase in resistance to seven ACCase inhibitors from three major chemically distinct classes: arbutin (APP), quizalofop-P-ethyl, quizalofop-P-ethyl, and flupyrflupyr; cyclohexenone (CHD), clethodim and clodinafop-P-ethyl; and neophenylpyrazoline (DEN), clodinafop-P-ethyl.

The application discloses a method for degrading polyester, and a degraded product and application thereof. The method comprises the following steps: alcoholysis, impurity removal and crystallization treatment of the polyester in the presence of a titanium-containing catalyst to obtain a degraded product. The green and efficient titanium-containing catalyst has high catalytic efficiency, and the depolymerization rate reaches 100%. The polymerization degree of the oligomer in the alcoholysis product is only 1-3. Moreover, the green and efficient titanium-containing catalyst does not contain heavy metals, and is harmless to the environment and human bodies. The catalyst residual amount in the target product is low, and has no influence on the polyester regeneration.

The present invention relates to the technical field of olefin production by deoxidation catalyst, and in particular to a carbon-supported catalyst and its preparation method and application. The preparation method of the carbon-supported catalyst comprises the following steps: obtaining a metal-containing carbonaceous material, grinding it into a powder, stirring and soaking it with an acidic solution at 30-80°C, separating and drying it to obtain a carbon carrier material; using water as a reaction solvent, adding a soluble transition metal salt, an organic ligand, a surfactant and an alkaline substance to react, and obtaining a precursor material, wherein the organic ligand is 3,5-pyridinedicarboxylic acid; washing and roasting the obtained precursor material to obtain an oxide material; using an ultrasonic method to load the obtained oxide material on the carbon carrier material to obtain a carbon-supported catalyst. The method provided by the present invention overcomes the shortcomings of complex operation, high cost, and low olefin selectivity in traditional deoxidation catalysts, and has certain market application value and advantages.

The utility model discloses a cleaning scrubber capable of automatically sensing. The cleaning scrubber comprises a handle and a machine head connected to the bottom of the handle. The machine head comprises a shell connected to the bottom of the handle, a UV disinfection lamp arranged on the lower end face of the shell and emitting light downwards, at least one rolling brush rotationally arranged on the lower portion of the outermost side of the shell, and a water electrolysis assembly arranged in the shell and conveying a water source to the rolling brush. The induction assembly is arranged in the shell, and the induction direction of the induction assembly faces downwards. According to the cleaning scrubber capable of automatically sensing, the cleaning capacity is higher, the ground can be disinfected while water is sprayed for scrubbing, the cleaning efficiency is further improved through the cooperation of the cleaning capacity and the disinfection capacity, the scrubber can automatically sense and stop running when leaving the ground, energy is saved, people are prevented from being hurt, and the service life of the scrubber is prolonged. And the safety and the practicability of the scrubber are further improved.

The utility model discloses a cutting device capable of being used for vegetable shredding. The cutting device comprises a box body, a box cover is arranged at the top of the box body, a fixing plate is fixedly arranged at the top of the box cover, a groove is formed in the top of the fixing plate, a feeding assembly is arranged on the surface of the groove, a discharging box is arranged at the top of the box cover, and a shredding assembly is arranged on the rear side of the discharging box. The shredding assembly comprises a shredding shell, the shredding shell is fixedly connected with the discharging box, a discharging opening is formed in the shredding shell, a strip cutting blade is arranged on the side, close to the blade clamping plate, of the inner wall of the shredding shell, a blade clamping plate is arranged on the other side, located on the discharging opening, of the inner wall of the shell, and a slicing blade is fixedly installed at the top of the blade clamping plate. According to the root vegetable shredding device, the root vegetables can be shredded without directly contacting with the hand when the root vegetables are cut, the hand cannot be hurt by the blade in the using process, the box body and the root vegetable shreds in the box body can be directly taken out, and the root vegetables can be conveniently collected and used in the next step.

The invention belongs to the technical field of coal mine safety, and particularly relates to a water-based mucus gas inhibitor, a preparation method and an application device.The preparation method of the water-based mucus gas inhibitor comprises the following steps that raw materials are prepared, mixed and stirred, and stored for use; the application device of the water-based mucus gas inhibitor is applied to the water-based mucus gas inhibitor and comprises a preparation device, a conveying device, a spraying device and a pressure injection device. The water-based mucus gas inhibitor disclosed by the invention is a convenient and environment-friendly substance with very small damage to a coal body, can effectively improve the wettability of the coal body, and has the capability of inhibiting desorption of gas in the coal body, and the technology is used for injecting the water-based mucus gas inhibitor into a coal seam before the coal seam is mined, so that dust is removed by improving the wettability of the coal body, and the coal seam is prevented from being damaged. And gas generated in the mining process is inhibited, so that safe production is ensured.

The utility model relates to the technical field of endoscopes, and discloses an endoscope insertion tube and an endoscope, and the endoscope insertion tube comprises a metal elastic layer, a metal braid layer and a self-repairing layer. The self-repairing layer comprises a self-repairing resin layer and a self-repairing coating layer; the self-repairing resin layer is arranged outside the metal braid layer, the self-repairing coating layer is arranged outside the self-repairing resin layer, and the material of the self-repairing coating layer comprises a coating with self-repairing capability. The outer surface of the endoscope insertion tube with the structure is the self-repairing layer, when the outer surface of the insertion tube is scratched or damaged due to improper use of an operator, the self-repairing layer can automatically repair the outer surface of the insertion tube under the conditions of heating, illumination or radiation and the like, the outer surface of the insertion tube is convenient to repair, the repairing cost is low, and the service life of the insertion tube is prolonged. The service life of the insertion pipe can be effectively prolonged; when the outer surface of the insertion tube is damaged, the insertion tube does not need to be replaced, so that the repair and maintenance cost of medical equipment can be reduced.

The invention belongs to the technical field of thickened oil recovery, and relates to a keratin composite foam plugging agent as well as a preparation method, an injection method and application thereof. The keratin composite foam plugging agent provided by the invention comprises keratin, a foam stabilizer, a foaming agent and water. The keratin composite foam plugging agent can form plugging structural bodies with different scales to establish a multi-dimensional plugging structure, the keratin composite foam can fully play the advantages of plugging near wellbore zones by a flexible long-chain keratin system and plugging far wells by a flexible short-chain keratin system, and has the advantages of far plugging and near regulation; meanwhile, the raw material cost is low, the usage amount is small, the operation period is short, and good economic benefits are achieved.

The application relates to a plastic product injection molding post-processing device and processing technology, which comprises a transfer mechanism for clamping and moving a workpiece and a cooling mechanism for cooling the workpiece and absorbing harmful gas, the cooling mechanism comprises a cooling box with an open upper end and a cooling driving element for absorbing air in the cooling box, an air inlet of the cooling driving element is communicated with the cooling box, and an air outlet of the cooling driving element is communicated with a waste gas treatment device; the transfer mechanism comprises a clamping element clamped on the outer wall of the workpiece and a clamping moving element for driving the clamping element to move, and the clamping element is connected to the free end of the clamping moving element. After the injection molding is completed, the clamping element takes the workpiece out of the mold and moves into the cooling box, the cooling driving element drives air to flow from the surface of the workpiece so as to remove volatile organic compounds on the surface of the workpiece, and the temperature of the workpiece is lowered; after the workpiece is cooled, no volatile organic compounds are generated in the workpiece, and workers are not harmed when the workpiece is moved.

This application relates to a catalytic cracking coke generator, a regeneration system, and a regeneration method. The coke generator, from bottom to top, includes a pre-lifting zone, a reaction zone (either a bubbling fluidized bed or a turbulent fluidized bed), and an outlet zone. The pre-lifting zone is connected to the bottom of the reaction zone and the regenerator, while the top of the reaction zone is connected to the outlet zone. At least one fuel oil inlet is provided at the outlet of the pre-lifting zone or at the bottom of the reaction zone. When the coke generator and system of this application are used in fluidized catalytic cracking reactions with high reaction heat, a coke source can be provided from the reaction system to the regenerator, solving the reaction heat balance problem without affecting the regeneration process and without damaging the physical and chemical properties of the catalyst.

The invention belongs to the field of new materials and specialty paper, and discloses high-strength PBO composite insulation paper and a preparation method thereof.The preparation method mainly comprises the following steps that the surface of PBO base paper is coated with a blending modified PHA precursor solution, and modified PHA-PBO composite paper is formed; and drying the composite paper, and carrying out hot pressing to obtain the high-strength PBO composite insulation paper. Compared with untreated PBO paper or common PHA-PBO composite paper, the composite paper prepared by the method has the advantages that the porosity of the PBO paper can be greatly reduced, the uniformity of the PBO paper is further remarkably improved, the modified PBO paper with excellent mechanical properties is obtained, the breakdown strength of the PBO paper is further improved, and the insulating property of the PBO paper is improved.

The application discloses a sesame field soil closing herbicide containing monosulfuron and oxadiargyl, and belongs to the technical field of pesticides. The effective component of the herbicide is monosulfuron and oxadiargyl; the mass ratio of the monosulfuron and the oxadiargyl is 1:20-1:60. The herbicide is high in safety to sesame and free from drug damage; the synergistic effect of the monosulfuron and the oxadiargyl after compounding is obvious; the herbicidal combination has a significant combined synergistic effect on common weeds in sesame fields; and the herbicidal combination expands the herbicidal spectrum and has excellent prevention and removal effects on common weeds in sesame fields.

The invention provides a preparation process of a ceramic grinding ball for grinding a battery raw material. The process comprises the following steps: forming a gel system by adopting non-toxic water-borne epoxy resin and water-dispersible polyamine, taking water as a solvent, preparing uniform slurry from ceramic powder, a dispersing agent and the like, performing vacuum defoaming, injecting the slurry into a silicon rubber spherical mold, performing gel curing under mild conditions, drying, and performing program control sintering, thereby finally obtaining the ceramic grinding ball. The ceramic powder is aluminum oxide, zirconium oxide toughened aluminum oxide or aluminum oxide toughened zirconium oxide ceramic powder. Near-net-size forming of the ceramic grinding ball is achieved, the sphericity degree of a green body is good, the surface is smooth and clean, and post-processing is greatly reduced. The process is non-toxic and environment-friendly, contact with metal equipment is avoided, and the metal impurity pollution risk of the product is remarkably reduced. The obtained ceramic grinding ball is high in density, the performance reaches the traditional compression molding level, and the ceramic grinding ball is particularly suitable for the field of high-purity battery material grinding and grinding of other materials sensitive to metal impurities.

The utility model discloses a bird repelling device which comprises a bottom plate installed on a cross arm of a telegraph pole, a connecting plate is installed on the bottom plate, long spine layers and short spine layers are arranged on the connecting plate in the length direction of the connecting plate at intervals, and each short spine layer is located between every two adjacent long spine layers. The long spine layer is composed of a plurality of long spines which are evenly arranged at intervals in the direction perpendicular to the length direction of the connecting plate. The short spine layer is composed of a plurality of short spines which are evenly arranged at intervals in the direction perpendicular to the length direction of the connecting plate. The top of the bird repelling device is of the conical spine structure which simulates wild jujube spines, so that when birds fall on the bird repelling device on a cross arm of a telegraph pole, the birds feel pain caused by the spines and actively fly away from the area, and the conical tips of the tops of the spines are of the smooth structure and do not cause great harm to the birds. Birds are not damaged while efficient bird repelling is achieved, and the situation that the birds generate immune reaction and continue to nest on the telegraph pole cross arm is avoided.

The invention discloses a water-based solvent-free anti-skid and wear-resistant coating, which comprises the following proportions by weight: 22 to 52 parts of polyacrylate emulsion; 32 to 40 parts of filler; 6 to 22 parts of polyurethane dispersion; 6 to 14 parts of anti-skid composite suspended particles; 9 to 15 parts of deionized water; and 4 to 7 parts of additives. Part of the anti-skid composite suspended particles in the coating are dispersed and evenly distributed on the paint surface in the form of convex points, thereby improving the wear resistance of the paint surface.

The utility model discloses a laser welding device for automobile part processing, including processing bottom plate, the top fixed connection of processing bottom plate has the removal backboard, the positive surface swing joint of removal backboard has the welding assembly, the top fixed connection of processing bottom plate has the shelter mechanism, the shelter mechanism includes the slide rail, the top slide connection of slide rail has the transmission rod, the back surface fixed connection of transmission rod has the shelter cover, the positive surface of shelter cover is provided with the sunshade, the outside fixed connection of transmission rod has the positioning mechanism, the outside of shelter cover is provided with the purification mechanism, as the utility model preferred, the positioning mechanism includes the positioning rod, the utility model discloses through setting up the shelter mechanism, changed the traditional laser welding device when carrying out the welding operation, will produce the phenomenon of metal scrap to the staff to cause the harm, can to its work area shelter, guarantee when working operation will not cause the harm to the surrounding staff.

The invention discloses a solution for preventing and treating hoof disease of dairy cows, and belongs to the technical field of veterinary disinfectants. The solution is composed of plant extracts, bactericides, hoof care agents, methyl salicylate, emollients, synergists, toners, and deionized water, and has good bactericidal, blood coagulation and detumescence effects, can effectively kill infectious pathogens of hoof disease of dairy cows, and promote keratin recovery. The solution of the invention does not contain antibiotics, copper sulfate, and strong oxidizing components, avoids irritation to the skin, is biodegradable and environmentally friendly; the preparation process is simple, the raw materials are simple and easy to obtain, and can be industrially produced.