180results about How to "Suitability for use" patented technology

The invention discloses a preparation method of a carbon encapsulated magnetic C/Fe3O4 nano composite material and an application thereof. The invention belongs to the technical field of a magnetic nano-material, and the carbon encapsulated magnetic C/Fe3O4 nano composite material can be prepared by using a hydrothermal method and a thermal decomposition method through synthesis. The carbon encapsulated magnetic C/Fe3O4 nano composite material is used for processing a dye methylene blue in waste water. The preparation method has the beneficial effect of simple process, high material purity, wide application scope, no residues, no toxic and side effect, and easy separation, and can be expected for wide application in environment engineering field.

The invention relates to a POE (ethylene-octene copolymer) spectrum conversion solar cell packaging rubber film and a preparation method thereof. The POE spectrum conversion solar cell packaging rubber film comprises the following components in parts by weight: 60-80 parts of spectrum conversion particles a, 20-40 parts of spectrum conversion particles b, 0.01-5 parts of organic peroxide, 0.05-0.25 part of ultraviolet stabilizer, 0.05-0.25 part of ultraviolet absorber and 0.01-5 parts of silane coupling agent. The preparation method of the POE spectrum conversion solar cell packaging rubber film comprises the following steps of: 1) adding 70-95 parts of POE and 5-30 parts of spectrum conversion materials into an extruder, extruding and granulating to obtain the spectrum conversion particles a; 2) adding 5-30 parts of POE and 70-95 parts of spectrum conversion materials into the extruder, extruding and granulating to obtain the spectrum conversion particles b; and 3) adding the raw materials into the extruder, extruding in a mixed way, and casting to form a film. The POE spectrum conversion solar cell packaging rubber film provided by the invention has the advantages of good weather resistance and good character uniformity; and the preparation method provided by the invention has the advantages of simplicity in operation and low cost.

The invention relates to an energy conservation and emission reduction device for internal-combustion engine micro-hydrogen jet, which comprises an oxyhydrogen electrolysis pool, an electrolyte reservoir, a current pulse width modulation volume control and safety protection circuit, a gas washing tank, a water seal anti-backfire pot, a generator and a multiple-connected battery; the current pulse width modulation volume control and safety protection circuit and the positive and negative electrodes of a conductive electrode plate of the oxyhydrogen electrolysis pool are connected into a loop; the case of the oxyhydrogen electrolysis pool is provided with two holes, and pipelines led out of the two holes of the oxyhydrogen electrolysis pool are sequentially connected with the electrolyte reservoir, the gas washing tank, the water seal anti-backfire tank and an internal-combustion engine. The device injects the mixed oxyhydrogen gas after water electrolysis into a combustion chamber of the internal-combustion engine to accelerate fuel oil or fuel gas combustion and realizes the full combustion of the fuel oil or fuel gas, thus improving the thermal efficiency, reducing the consumption of the fuel oil or fuel gas, and reducing the emissions of greenhouse gases, harmful gases and solid particles. The device is used for various vehicles, ships, generator sets and the like which take the internal-combustion engine as power.

The invention discloses a hair ring split charging machine. At present, ring packaging is manually operated, and the packaging efficiency is low. The hair ring split charging machine comprises a feeding hopper, a rotation mechanism, a transverse moving screening mechanism, a material dividing device, counters and a discharging device; the rotation mechanism is arranged at the bottom of a discharging hopper, the transverse moving screening mechanism is arranged below the rotation mechanism, and raw materials are evenly discharged; three split strips are arranged between a conveying belt mechanism of the material dividing device and a screen of the transverse moving screening mechanism, the position, between every two adjacent split strips, of the output end of the conveying belt mechanism is provided with one counter, and the discharging device is arranged below the counters and comprises a discharging barrel, first rotating shafts, second rotating shafts and a flow combining part; and the discharging barrel is divided into two discharging chambers, first discharging clamping rings are fixed to the first rotating shafts in the discharging chambers, clamping grooves in the tops of the first discharging clamping rings are fixed to first baffles, second discharging clamping rings are fixed to the second rotating shafts, and two second baffles are fixed in two clamping grooves in the bottoms of the second discharging clamping rings. A gap of flexible material split charging in industrial production is filled up by means of the hair ring split charging machinej.

The invention discloses a preparation method for a silicon-carbon composite negative electrode material. The preparation method comprises the steps of performing dispersing on nanometer silicon, graphite and an organic matter separately and mixing in proportion; next, performing heating and drying and heating until the temperature reaches an organic matter softening point temperature or above, and performing fusing and binding and low-temperature carbonization to obtain an organic matter cracked carbon-coated primary coating material; performing dispersing on the organic matter and the primary coating material separately and mixing in proportion; and next, performing heating and drying and heating until the temperature reaches an organic matter softening point temperature or above, and performing fusing and coating and high-temperature carbonization to obtain an organic matter cracked carbon-coated secondary coating material, namely the silicon-carbon composite negative electrode material provided by the invention. The initial reversible capacity of the negative electrode material prepared by the method can reach 649mAh/g, and the capacity retention ratio after 50 cycles can be maintained at 85.36%, and quite excellent cycling performance is shown; and in addition, the preparation method has a simple and environment-friendly process, low energy loss, rich silicon and graphite raw material resource, low cost and high safety, and is suitable for industrial production and use.

The present invention discloses a kit for detecting aldehyde dehydrogenase 2(ALDH2) gene polymorphism by using the single-tube bidirectional allele-specific amplification technology combined with the SNP sensitivity molecular switch technology, and an amplification method and a detection method thereof. The kit genotypes the Glu487Lys(rs671) site on the aldehyde dehydrogenase 2. The kit includes amplification buffer, polymerase, cell lysis buffer and glycerol, and can complete the genotyping for the SNP site in one PCR reaction so as to understand the genotype of the aldehyde dehydrogenase 2 subject and the product activity thereof.

The invention discloses a method for preparing a catalyst and a water treatment method for catalyzing ozone oxidization by utilizing the catalyst and relates to a method for preparing a catalyst and a water treatment method. The invention solves the problem that sludge left after sewage treatment occupies vast land and causes pollution to the environment. The method for preparing the catalyst comprises the following steps of: after drying, pulverizing and screening the sludge, charging the sludge into a zinc chloride aqueous solution; standing and removing supernatant liquor; and after insulating heat of particle sludge in a muffle furnace, rinsing respectively with hydrochloric acid and deionized water and drying to obtain the catalyst. The water treatment method comprises the following step of charging water treated by a flocculating pond, a settling pond and a filter pond or sewage treated by a settling pond I, a biological pond and a settling pond II into a reactor in which ozone and the catalyst are added, for treating. The invention provides the ozonization catalyzing catalyst with the characteristics of low cost, efficient catalysis, less dissolving amount and large specific surface area while the sludge problem is solved. The catalyst of the invention can improve the removal efficiency of ozone on organic pollutants in water.

The present invention discloses a gene detection kit using the multiplex PCR technology combined with the SNP sensitive molecular switch technology for genotyping of cytochrome 4502C19 gene, an amplification method and a detection method. Three common polymorphic sites on the CYP2C19 gene significantly changing the product activity are genotyped by the kit, wherein the three common polymorphic sites include: rs4244285SNP site, rs4986893 site and rs12248560 site. The kit includes a wild-type 2*PCR buffer, a 2*mutant amplification buffer, and a polymerase. The two buffers respectively includes a sequence-specific primer and an internal reference primer corresponding to SNP wild and mutant phenotype, and can complete genotyping for the three SNP sites in two multiplex PCR reactions, and thus the CYP2C19 gene is genotyped, and molecular biological evidence is provided for the gene-expressed enzyme activity prediction.

The invention discloses a thermoreflectance test method and system and belongs to the technical field of temperature testing. The method includes the steps of: calibrating the thermoreflectance coefficient CTR of an area to be tested; modulating the emergent light of light sources of different wavelengths and projecting the modulated emergent light onto the area to be tested; causing a detector toreceive the reflected light of the area to be tested and to demodulate the reflected light to obtain signals of the reflected light of different wavelengths; calculating the signals of the reflectedlight of different wavelengths to obtain the temperature test information. The method simultaneously measures the temperature of the area to be tested and including a plurality of different materialsby using emergent light of different wavelengths, selects the maximum wavelength with the maximum CTR to measure the temperature according to the characteristics of different materials, and reduces the loss of the CTR when the multiple materials are measured simultaneously, and improves the accuracy of light and thermoreflectance temperature measurement, and temperature measurement efficiency.

The invention discloses branching, cross-linking, expanded, melt-dropping-resistant and flame-retardant copolyester based on a triazine ring structure. The copolyester is prepared by conducting random copolymerization on structure units expressed as formulae I, II and III or structure units expressed as formulae I, II, III and IV according to a conventional method. The intrinsic viscosity [eta] of the prepared branching, cross-linking, expanded, melt-dropping-resistant and flame-retardant copolyester is 0.41-1.10 dL/g; the extreme oxygen index is 24.5-38.0%; the vertical combustion grade is between V-2 and V-0; the peak heat release rate p-HRR in a cone heat test is 247-643 kW/m<2>. According to the copolyester, a modified monomer of the triazine ring structure is introduced, and then copolymerized with polyester to form a unique ternary branched cross-linking network structure; the modified monomer of the triazine ring structure contains the flame-retardant element nitrogen, so that the melt viscosity of the copolyester in combustion can be improved; the copolyester is capable of releasing nitrogen and quickly forming an expanded char layer with excellent heat and oxygen insulation effects; especially, a phosphorus-nitrogen synergism effect can be generated when the copolyester is used together with the conventional phosphorus-containing flame-retardant agent; the flame-retardant performance and the melt-dropping-resistant effects can be more excellent; the selected monomer is low in price; the preparation process is mature; the operation is simple and convenient; the industrialized large-scale production is liable to implement.

The invention discloses a novel house capable of being fast disassembled and assembled and an assembling method thereof. The novel house comprises a wall. The lower portion of the wall is connected with ground ring beam angle iron. The upper portion of the wall is connected with top ring beam angle iron. One side of the top ring beam angle iron is connected with a flat roof. A waterproof layer is disposed on the flat roof. The upper portion of one side of the top ring beam angle iron is connected with a house frame. An inclined roof is disposed on the house frame. A waterproof layer covers the inclined roof. The wall, the flat roof and the inclined roof are formed by a plurality of wall module units which are connected in a threaded manner. The ground ring beam angle iron and the top ring beam angle iron are of an angle iron structure. The wall module units are connected with the ground ring beam angle iron and the top ring beam angle iron through threads. The wall module units are spliced to form a door opening and window openings. The wall module units above and below the door opening and the window openings are respectively connected with the wall module units on the outer sides of the door opening and the window openings through angle fixing angle iron in a threaded and matched manner. The novel house is convenient to assemble and disassemble, fast in construction and recyclable.

The invention discloses a packing sealing filler and its preparation method. Calculated by weight percentage, the filler is composed by mixing 72%-88% of a mixed material and 12%-28% of modified methyl silica gel. Specifically, in terms of weight percentage, the mixed material is formed by mixing 66%-71% of polytetrafluoroethylene, 25%-28% of glass fiber powder, 4%-8% of a filler, and 2%-10% of molybdenum disulfide. The preparation method of the packing sealing filler consists of: mixing all the raw materials uniformly and then preparing them into a multilayer rubber plate, cutting the plate into strips, using a plodder to press the strips into strip products of various specifications. The filler provided in the invention has the advantages of good self-lubricating performance, small friction coefficient, strong toughness, high chemical stability, swelling and dissolution-proofness, simple preparation, convenient disassembly and assembly, as well as low production cost, thus being suitable for mass production and promotion.

The invention discloses a microwave power testing device based on a universal serial bus (USB) interface. The microwave power testing device comprises a casing, a circuit board support, a microwave sensor, an analog circuit board and a digital circuit board, wherein the analog circuit board and the digital circuit board are connected through a high-density connector, the analog circuit board comprises a chopping amplifying circuit, a rear-stage amplifying circuit, an analog-to-digital converting circuit, a zero calibration selection circuit and a temperature analog-to-digital converting circuit, the digital circuit board comprises a digital signal processing circuit, a USB interface circuit and a power source management circuit, and the digital signal processing circuit comprises a digital signal processor, a synchronous dynamic data storer, a flash memory program storage and a complicated programmable logic array chip. The microwave power testing device is compact in structure, small in size, light in weight and flexible in programming, adopts USB power supply, can be connected with computers with USB host interfaces or other electronic measuring instruments, can form a microwave power automatic testing system rapidly and is suitable for applications in places of laboratories, fields, production lines and the like.

The invention provides a preparation method of a polyethyleneglycol monomethyl ether-polylactic acid block copolymer, which comprises the following steps: reacting raw materials polyethyleneglycol monomethyl ether and D,L-lactide by melt polycondensation by using stannous octoate as a catalyst; and after the reaction finishes, carrying out after-treatment by a 1-4-time dichloromethane dissolution-aether crystallization process, wherein the product to be purified is dissolved by the dichloromethane and washed with pure water in the first or second crystallization process to remove more low-molecular impurities, thereby obviously narrowing the molecular weight distribution of the product. The hydroscopic property of the product is obviously improved, and the flowability is higher and is more suitable for preservation and use of the product.

The invention relates to a modified sphere-shaped sponge iron used for sewage treatment and a preparation method thereof, and belongs to the technical field of metallurgical production. The modified sphere-shaped sponge iron is used for reducing crystal grains in the sphere-shaped sponge iron and improving the specific surface area and the stability of the sphere-shaped sponge iron in air. The modified sphere-shaped sponge iron is characterized in that the modification sphere-shaped sponge iron has a porous structure, the diameter of a sphere ranges from 1 to 10mm, while the diameter of an internal elementary iron crystal grain is less than 1 micron, and the specific surface area is 0-50m<2>/g; the surface layer of the sponge iron is cementite with the thickness between 10 nanometers and 100 nanometers. The process of the invention includes material blending, sphere making, oxidizing roasting, direct deoxygenizing and carburizing of the sphere-shaped sponge iron, etc. In the invention, H2 is chosen as a reductant, thereby ensuring low temperature in the preparation of the sponge iron and ensuring the reductive sponge iron finer; the process of the carburizing of the sphere-shaped sponge iron is increased so as to ensure the surface layer of the sponge iron to be attached by a carburizing layer with the thickness between 10 nanometers and 100 nanometers and the sponge iron is not easy to undergo secondary oxidization. Compared with the prior art, the modification sphere-shaped sponge iron has the advantages of low production cost, high efficiency of stain removing, uneasy hardening and convenient storage and usage, etc.

The invention discloses a hair dryer. The hair dryer comprises a connected seat, in which an inserting near slot is arranged. The left end surface of the connected seat is internally and rotatably provided with a rotary drum. The rotary drum is provided with a square clamping slot. The right end surface of the connected seat is provided with a placement slot. A push slot is linked between the placement slot and the inserting near slot. The connected seat on the left side of the inserting near slot is internally provided with a vertical-side slot. An inserting near block sliding leftward and rightward is arranged in the inserting near slot. The hair dryer has the following beneficial effects: the overall structure of the hair dryer is designed reasonably; power supply is safe and stable, thereby greatly reducing electric shock accidents when a connected head is plugged and unplugged; therefore, personal safety of people is effectively ensured; the connected head is released and unlocked conveniently and quickly; the hair dryer is suitable for promotion and application, thereby greatly reducing production cost; the exercise amount of people is increased because adjustments are made by manual control; and therefore, the hair dryer may help improve physical health of people.

The invention discloses a preparation method of intelligent surface mosquito-repellent polyester fiber for a mosquito net. The preparation method comprises the following steps: performing etching reduction treatment on polyester fiber; preparing mosquito-repellent polyester fiber from a mosquito repellent by a block copolymer disperse coating method so that traditional polyester fiber becomes a high-performance spinning intelligent material and has different responsiveness to different chemical environments to finally realize a lasting mosquito killing effect of polyester filament. The mosquito-repellent polyester fiber for the mosquito net prepared by the method disclosed by the invention is scientific and technological polyester chemical fiber filament, and the mosquito repellent is uniformly distributed in the fiber surface; the mosquito-repellent polyester fiber offers different intelligent responses under the effect of specific auxiliaries and can be stored and used for long time; and moreover, the mosquito-repellent polyester fiber has the advantages of high mosquito-repellent efficiency, long duration and low toxicity and is relatively widely applicable to house materials.

The invention discloses a friction-type arc-shaped damping limiting reinforcing device. The friction-type arc-shaped damping limiting reinforcing device comprises a first reinforcing part of a reinforcing column, a second reinforcing part of a reinforcing beam, and an arc-shaped damper connecting the first reinforcing part and the second reinforcing part; and the first reinforcing part is connected with one end of the arc-shaped damper through a damping assisting device, and the second reinforcing part is connected with the other end of the arc-shaped damper through a damping assisting device.

The invention discloses an aluminum alloy welding process and belongs to the technical field of metal welding. The aluminum alloy welding process comprises the following steps: (1) a welding area of the surface of an aluminum alloy plate is put into a cleaning fluid for ultrasonic cleaning and then dried; (2) the welding area of the to-be-welded aluminum alloy plate is heated to 150-200 DEG C; (3) the welding area of the to-be-welded aluminum alloy plate is heated to 750-830 DEG C, a degasifier is sprayed to the welding area of the aluminum alloy plate, and the aluminum alloy plate is welded with a special aluminum alloy welding wire; (4) the welded part of the aluminum alloy plate is subjected to solid solution at the temperature of 300-450 DEG C, and the aluminum alloy plate is subjected to degasification treatment through ultrasonic waves; (5) the welded part of the aluminum alloy plate after solid solution treatment is transferred to cold water and cooled to the room temperature; (6) clearing and removal of welding powder or slag are performed. With the adoption of the aluminum alloy welding process, the pore problem can be effectively solved, and incomplete fusion, incomplete penetration and cracking phenomena are unlikely to occur.

The invention provides a production method of a high-purity micro-powder silica plastic anti-block agent; high-purity water glass reacts with sulfuric acid to gain sodium sulfate and silicic acid; the sodium sulfate is washed by water to gain silicious colloid which is centrifugally dehydrated, and dried by micro-wave to gain pure SiO2 powder which is crushed by an airflow crusher to gain the high-purity micro-powder silica plastic anti-block agent. The production method of the high-purity micro-powder silica plastic anti-block agent has simple process, high purity and small particle size of the gained products, is suitable for the production and use of top-class plastic films, can obviously improve the top-grade product rate, reduces the cost of the product, improves the tensile yielding strength of the film to 13.5-14.5MPa generally, improves the tensile breaking elongation rate of the film to about 1400 percent, and obviously reduces the fish eye number of the film.

The invention provides an anti-pollution aging method for putting black tea into a packaging container with a ventilated extraction valve having sealing and filter films and specially designed packaging container for implementing the method, wherein the method comprises the following steps of: a) putting the black tea into the packaging container with the ventilated extraction valve, and keeping the black tea in a sealing state; b) screwing on a first regulation protecting cover of aventilated valve, wherein the ventilated extraction valve comprises a ventilated valve and an extraction valve; c) screwing off a sealing cover of the extraction valve, pumping by a vacuum pump so that the vacuum degree in the packaging container is smaller than or equal to 150-250 Pa, reducing air, dust particles and microorganism carried by the air in the container to least, and screwing on the sealing cover of the extraction valve so as to keep the extraction valve in the sealing state; and d) loosening the first regulation protecting cover of the ventilated valve reversely by screwing, causing the air to pass through a micropore filter film to enter in and out the bag, preventing the particles and microorganism outside from entering into the packaging container, naturally oxidizing the tea to finish the anti-pollution aging so that the tea is more fragrant when the time is longer. The invention also provides the packaging container for implementing the method.

The invention discloses an RPA-LFA (recombinase polymerase amplification-lateral flow assay) detection kit for detecting brucella. The kit comprises (1) a sample tretament solution, (2) a detection reaction solution, (3) a dry powder tube, (4) a lateral flow test strip, (5) a positive control reaction solution, (6) a negative control reaction solution and (7) a sample treatment solution. The kit combines simple treatment of samples, RPA and LFA technologies, no simultaneous equipment is required, and all that is required for detection is to boil the samples, so that the kit is very suitable tobe used on site or in fields, can detect and diagnose brucella in veterinarian clinics or farms, has great clinical application value for diagnosis and control of the diseases and has high detectionprecision and broad market prospects.

The invention provides a multi-component nitrate/graphene/nanoparticle shaped composite phase change heat storage material and a preparation method thereof. The specific method is: adding worm-like expanded graphite into a mixed solution of sulfuric acid and phosphoric acid, stirring at low temperature, and adding an oxidizing agent Oxidation, washing, centrifugal drying, and reduction with hydrazine hydrate to obtain modified network expanded graphene; stir the nitrate mixture and modified network expanded graphene with water to form a suspension, evaporate to dryness, pre-sinter, and cool to room temperature to obtain Granular nitrate-loaded graphene composite material; after the granular nitrate-loaded graphene composite material is ball-milled with nanoparticles, it is pressed into a mold, demoulded, then sintered in a muffle furnace, and cooled to room temperature , to obtain multi-component nitrate/graphene/nanoparticle shaped composite phase change heat storage material. The shaped composite phase change heat storage material prepared by the invention has high energy storage density per unit volume, stable chemical performance, high strength and low cost.

The invention discloses an application of a metarhizium anisopliae CQMa421 strain in the preparation of a medicine for preventing and treating aphids. The medicine for preventing and treating the aphids is prepared from the following raw materials in percentage by weight: 35%-52% of metarhizium anisopliae CQMa421 xerospore powder, 40%-50% of kieselguhr, 1%-2% of nanometer aluminum oxide, 3%-5% of sodium carboxymethylcellulose, 2%-4% of OP-10 and 2%-4% of HEL-40. Black peach aphids and lipaphis erysimi kaltenbach can be infected by the metarhizium anisopliae CQMa421 strain; and the fatality rate on the black peach aphids and the lipaphis erysimi kaltenbach can respectively reach 71.5% and 70.8%. The fatality rate of the metarhizium anisopliae CQMa421 strain prepared by adopting a method for enhancing the toxicity can reach 100% and is improved by 30%; and the effect is very outstanding. Various components of a metarhizium anisopliae preparation effectively cooperate to reach the effect of synergistic interaction. The metarhizium anisopliae preparation disclosed by the invention is sprayed by blending in water; and the field control effect on the black peach aphids and the lipaphis erysimi kaltenbach reaches 80% or above. The preparation has good ultraviolet resistant characteristic and wetting dispersion characteristic; the biological activity in long-term storage is kept; and the storage time can reach 12 months.

The invention discloses an LED rotating spot lamp which comprises an LED light source (1), a rotating support and a supporting base (2). The rotating support comprises a rotating column (3) and a supporting column (4), one end of the rotating column (3) is connected with the LED light source (1) while the other end of the same is spherical, the supporting column (4) is provided with a height adjusting device (5), one end of the supporting column (4) is fixedly connected with the rotating column (3) while the other end of the same is provided with a roller (6), a spherical groove (7) matched with the rotating column (3) and a rail (8) matched with the roller (6) are arranged on the supporting base (2), a motor (9) is arranged below the spherical groove (7), and an adjusting control device (10) is arranged on the supporting base (2). The LED rotating spot lamp has the advantages of capability of circumferentially rotating and irradiating and simple structure.

The invention provides a coaxial wire feeding and powder feeding melting pole arc additive manufacturing device and process. A central body which allows a welding wire (1) passes through passes through the center of a four-way powder feeding nozzle (7), the welding wire (1), the central body and the four The four-way powder feeding nozzle (7) adopt coaxial design; the four-way powder feeding nozzle (7) is connected to an external powder feeder and surrounds the central body (3); a powder feeding channel (6) in the four-way powder feeding nozzle (7) adopts truncated cone design; a protective gas channel (9) is formed between the central body (3) and the four-way powder feeding nozzle (7); and the four-way powder feeding nozzle (7) is provided with a cooling water channel (5). The design ofthe four-way powder feeding nozzle enables alloy powder to be uniformly converged above a molten pool, so that a deposited layer is formed more uniformly, and the alloy powder melts by absorbing the heat of electric arc, which reduces defects of the collapse of a printed layer caused by excessive heat input during the printing process and the molten pool flowing downwards.

The invention discloses a control system and a control method for automatic blending of pesticides. The control system comprises a microcontroller, a flow sensor set, a solenoid valve set, a stirringmechanism, a water pump, a pesticide pump and a man-machine interaction module; one flow sensor and one solenoid valve are arranged on a connecting pipe of a water tank and a pesticide mixing tank; one flow sensor and one solenoid valve are arranged on a liquor conveying pipeline of the pesticide mixing tank; each of the rest flow sensors and the solenoid valve corresponding to each flow sensor are arranged on the connecting pipe of the corresponding pesticide box and the pesticide mixing tank; the stirring mechanism is arranged on the pesticide mixing tank; the water pump is arranged on the connecting pipe of the water tank and the pesticide mixing tank; the pesticide pump is arranged on the liquor conveying pipeline of the pesticide mixing tank. The control system disclosed by the invention is capable of effectively and accurately controlling the dosage of pesticides and inflow volume of clean water in the pesticide mixing tank, accurately measuring dilution ratio and pesticide concentration and meanwhile effectively and accurately controlling the volume of pesticide inputted to the pesticide box of a pesticide device.

The invention relates to baby body wash and a preparation method thereof. The baby body wash is prepared from, by weight, 5-30% of amphoteric imidazoline surfactant, 1-10% of coco-glucoside and sodium lauroyl hydroxypropyl sulfonate, 1-10% of alkyl glycoside surfactant, 0.1-5.0% of a thickening agent, 0.2-1.0% of citric acid, 0.01-0.08% of ethylenediamine tetraacetic acid, 1-10% of glycerin, 0-0.3% of preservatives, 0-0.5% of essences and the balance water. The baby body wash is quite mild, completely accords with baby skin characteristics and is free of skin irritation and allergic reaction while proper cleaning of baby skin is guaranteed; due to pH of the baby body wash is 5.5-6.5, the baby body wash can better accord with intrinsic pH characteristics of baby skin, maintain a natural barrier function of baby skin and better retain moisture.

A decomposition fermentation-type environment-friendly dustbin belongs to the field of bio-environmental equipment. The decomposition fermentation-type environment-friendly dustbin comprises a bucket body of a cylindrical container, wherein the upper part of the bucket body is provided with a bucket cover, and the decomposition fermentation-type environment-friendly dustbin is characterized in that a garbage storage chamber, a garbage cache chamber, a garbage fermentation chamber and a bacteria liquid circulating chamber are arranged inside the bucket body, one side of the bucket body is provided with a fermentation bacteria liquid adding device, fermentation liquid is filled inside a drainage tube, the fermentation bacteria liquid adding device comprises the drainage tube, a micro-dripping liquid supply ring and a circulating tube, which are communicated with one another, the micro-dripping liquid supply ring is arranged on the circumferential edge of an arc storage bowl, the circulating tube is arranged inside the bacteria liquid circulating chamber, the drainage tube is fixedly arranged on one side of the bucket body, a fermentation plate is arranged inside the garbage fermentation chamber, the lower part of the fermentation plate is provided with a piece of water absorption cloth, and the water absorption cloth is connected to the bacteria liquid circulating chamber from the periphery of a separation plate. By optimizing the design, the decomposition fermentation-type environment-friendly dustbin is simple in structure, convenient to use and capable of avoiding the emission of odor; and moreover, the garbage is used as high rotten fertilizer, and the decomposition fermentation-type environment-friendly dustbin not only is suitable for the indoor use, but also can be used in outdoor public green space.

The invention discloses a meat cutting mechanism. A motor of the mechanism is fixedly arranged on a workbench; one end of a crank is fixedly connected with an output shaft of the motor; the other end of the crank is hinged with one end of a connecting rod through a revolute pair I; the other end of the connecting rod is hinged with one end of a rocking rod through a revolute pair II; the other end of the rocking rod is hinged to the workbench through a revolute pair III; one end of a swing rod is fixedly arranged on the rocking rod; a slide block slides in the swing rod; one end of a guide rod is hinged to the slide block through a revolute pair IV; a sliding chute is formed in the workbench; the guide rod slides in the sliding chute; the other end of the guide rod is fixedly connected with a meat cutter after penetrating through the sliding chute; and a cutting board is located below the meat cutter. The meat cutting stroke of the meat cutting mechanism is controlled by a tangent mechanism, so that the meat cutter is high in falling speed, meat cutting speed and efficiency in a meat cutting process.