59results about How to "Avoid health threats" patented technology

The invention relates to the field of an electronic cigarette, in particular to electronic cigarette liquid and a preparation method thereof. The electronic cigarette liquid comprises 1%w / v to 2%w / v of spice capable of generating the aroma of the tobacco, 22%w / v to 24%w / v of glycerinum and the balance being propanediol. The electronic cigarette liquid can be used for substituting the cigarette to be used by smokers. Compared with the cigarette, the electronic cigarette liquid has the advantages that the thread to the health of people caused by harmful substances such as tar and CO can be avoided, and the hazard is reduced.

The invention relates to a rice moth egg collecting system. The rice moth egg collecting system is characterized by comprising a tank, one or more insulation layers are arranged inside the tank, and two rows of suspension devices are arrange inside each isolation layer at intervals; a rice moth egg vibration collecting groove is arranged at the portion, below the suspension devices, inside the tank, and the tail end of the rice moth egg vibration collecting groove stretches out of the tank; a rice moth egg vibration distributing machine is arranged at the tail end of the rice moth egg vibration collecting groove, and a conveying device is arranged at the tail end of the rice moth egg vibration distributing machine; a rice moth egg collecting disc is arranged on the top of the conveying device. An automatic control device is arranged on the tank, and the rice moth egg vibration collecting groove, the rice moth egg vibration distribution machine and the conveying device are electrically connected with the automatic control device. A pneumatic component is arranged inside the tank, one end of the pneumatic component is electrically connected with an automatic control system, the other end of the pneumatic component is connected with a frame structure through a pipeline, the frame structure is arranged inside the corresponding isolation layer, brushes are connected to the interior of the frame structure in a fastened mode, and the brushes are arranged between the two adjacent suspension devices.

The invention discloses a pure plant air cleanser. The air cleanser comprises the following components by mass percentage: 1-3% of a Chinese honey locust extract, 1-3 %of a sophora flavescens root extract, 1-3% of an aloe barbadensis leaf extract, 1-3% of a sanguisorba officinalis root extract, 1-3% of a citrus peel extract, 1-3% of root bark extract, 20-35% of a lavender extract, and the balance of deionized water. The air cleanser employs a natural plant extract for complex formulation, does not add any chemical components, can avoid health threat and pollution problem of the chemical components on human body, and has the advantages of no toxicity and environmental protection.

The invention provides an SNP (Single Nucleotide Polymorphism) molecular marker for a sterile gene pms3 (photoperiod-sensitive male sterility 3) of paddy rice. The molecular marker is K-120522, wherein the polymorphism of the K-120522 is C or G. By utilizing the molecular marker, the gene pms3 can be quickly and precisely detected; the selection efficiency, in the breeding of the paddy rice, of the gene is greatly improved. The enzyme digestion, the electrophoresis, the sequencing and the like are not needed in a detection process; the operation is simple and convenient; the commercialized high-throughput quick detection can be realized; the aerosol pollution of a PCR (Polymerase Chain Reaction) product, the pollution of EB (Ethidium Bromide) to an environment and the harm of formaldehydeto a human body are thoroughly avoided.

The invention relates to a fiber conveying device applied in the fiber assisted fracturing process of an oil-gas well. The fiber conveying device comprises a delivery cavity which is in a shape of a right conical platform, a motor a and a motor b, wherein the small end of the delivery cavity is fixedly connected with the top of a sand mixing tank; the delivery cavity is communicated with the sand mixing tank; a top cover is arranged at the large end of the delivery cavity; a stirring hole is formed in the center of a circle of the top cover; a bearing is fixedly arranged on the inner wall of the stirring hole; a hollow shaft passes through the top cover and is arranged in the delivery cavity by the bearing; a driven gear is arranged on the upper part of the hollow shaft; the motor b is arranged on the top cover; a driving gear is arranged on the motor b; the driving gear is in transmission connection with the driven gear; and a feeding hole which is communicated with the delivery cavity is also formed in the top cover. By the fiber conveying device, fibers and materials in the sand mixing tank can be mixed safely and efficiently, the threat to the health of staff due to the exposure of the fibers is avoided, environmental pollution is reduced, the using amount of the fibers is reduced, and the production cost and operating cost are low.

The invention provides a control method for charging-and-discharging testing of a battery and a system thereof. The control method comprises the steps of S20, setting a preset number of testing timesin a controller; S30, detecting the electric quantity of the battery, and determining whether the electric quantity of the battery is higher than a first preset electric quantity or lower than a second preset electric quantity; S40, when the controller detects a fact that the electric quantity is higher than the first electric quantity, performing discharging on the battery through a discharging circuit until the electric quantity of the battery is lower than the second preset electric quantity; S50, when the controller detects a fact that the electric quantity of the battery is lower than thesecond preset electric quantity, charging the battery through a charging circuit until the electric quantity of the battery is higher than the first preset electric quantity; S60, recording the number of charging-and-discharging testing times by the controller, and determining whether the number of charging-and-discharging testing times reaches a preset number of testing times; and S70, if yes, stopping charging and discharging to the battery; and otherwise, returning to the step S30. The control method and the system thereof have advantages of realizing automatic control for charging-and-discharging testing on the battery, saving manpower and improving testing efficiency.

A pet waste vacuum and bagging device is described. The device is equipped with a canister, collection receptacle, collection chute, vacuum motor, and a bag sealer. The device eliminates the need for an individual to come into any contact with pet waste, including the temperature and the smell conventionally known to emanate from pet waste. The device employs the vacuum motor to collect pet waste within the collection receptacle via the collection chute. The collection receptacle is lined with a plastic bag, which is sealed and released from the collection receptacle within the canister upon activation of a dispose button by the user. The device is powered by rechargeable batteries, and may be equipped with a charging cradle to maintain a fully battery charge.

The invention discloses a design method of a lead-free flexible radiation protection material, which comprises the following steps: (1) when the X-ray peak energy is less than 54keV, selecting bismuthoxide as a functional filling material; (2) when the X-ray peak energy is 54-66keV, bismuth oxide and gadolinium oxide are selected as functional filling materials; (3) when the X-ray peak energy is66-100 keV, bismuth oxide and tungsten are selected as functional filling materials; and (4) when the X-ray peak energy is greater than 100keV, bismuth oxide is selected as the functional filling material. The invention further discloses the lead-free flexible radiation protection material designed by the design method and an application of the lead-free flexible radiation protection material in the field of radiation protection. According to the design method of the lead-free flexible radiation protection material, an optimal functional material filling scheme is provided for different X-rayenergy under specific working conditions, and the problems that a traditional protection material is heavy and poor in wearing comfort due to the fact that the traditional protection material is designed and processed in a unified mode without facing actual working conditions are effectively solved.

The invention belongs to the field of automobile interior product machining and manufacturing, in particular to a pressing die. The pressing die comprises an upper die and a lower die, and the profiles of the upper die and the lower die are provided with continuous and mutually matched cutting edges along the cutting lines of the product. When the pressing die is used, because the pressing and the edge cutting of the product are completed once, later machining is avoided and machining procedures are reduced, the production efficiency of the enterprise is increased. Meanwhile, because the continuous cutting edges directly cut off excessive materials while pressing and molding the product, the side lines of the molded product are trim and beautiful, the product does not require polishing procedure after edge cutting, and a threat to the health of workers and the pollution to the environment due to fiber dust produced by polishing are also avoided.

The invention provides laser anti-fake paint, a preparation method thereof, and a laser transfer membrane and a preparation method thereof. The paint comprises the following compositions in parts by weight: 40-45 parts of ethyl acetate, 20-25 parts of n-propyl acetate, 3-5 parts of methyl proxitol, 1-2 parts of butyl acetate, 8-10 parts of cellulosic compounds, and 10-12 parts of an acrylate homopolymer. The softening point of cellulosic compounds is 140 DEG C-185 DEG C, and the softening point of the acrylate homopolymer is 140 DEG C-185 DEG C. The paint employs ethyl acetate, n-propyl acetate, methyl proxitol and butyl acetate as a mixed diluent, does not contain ketones, and is relatively friendly to environment. The paint has relatively good coating uniformity, and has relatively good transparency after being spread on the base-material layer. Experiment results show that the residual content of methyl proxitol, n-propyl acetate, n-butyl acetate and ethanol in a laser transfer membrane prepared through coating of the paint accord with index requirements.

The invention relates to embedded equipment, in particular to an intelligent chopstick based health management system and method. According to the intelligent chopstick based health management system and method, health management can be performed when a user takes food in daily life. The system comprises a cloud service platform, an intelligent terminal and intelligent chopsticks, wherein the intelligent chopsticks are used for collecting and analyzing daily food information of the user, uploading the collected and analyzed food information to the cloud service platform through the intelligent terminal and reminding the user according to directive commands sent by the intelligent terminal; the cloud service platform comprises a data collection module, a data management module, a data mining module, a service delivery module and an open API (application program interface) module, and data collection, management, mining, service delivery and open access are realized. The intelligent chopstick based health management system and method are applicable to daily diet management of the user.

The invention discloses a selenium-rich plant nutrient. The selenium-rich plant nutrient is mainly prepared from components in parts by weight as follows: 2-6 parts of humic acid, 0.4-0.8 parts of selenium-rich raw materials, 20-30 parts of water hyacinth, 10-20 parts of spinach leaves, 1-3 parts of a natural surfactant, 6-10 parts of a traditional Chinese medicine preparation, 10-15 parts of pond silt, 20-30 parts of urea, 10-12 parts of potassium chloride, 2-4 parts of zinc sulfate, 10-12 parts of calcium superphosphate, 5-7 parts of borax and 4-6 parts of bacteria. Comprehensive nutrition is provided for crop growth by adding plant fibers, and with application of any one of selenium ore powder, selenium amino acid and sodium selenite instead of traditional sodium selenite, the threat of the nutrient to health of a producer and a consumer is avoided. The content of selenium in crops is increased, agricultural and forestry residues are recycled, and the selenium-rich plant nutrient has wide marketing value and remarkable social and economic benefit.

The invention discloses a waste storage device for medical examinations. The waste storage device comprises a storage box, an inner box, ultraviolet sterilization lamps, a waste liquid collecting boxand a control box; the inner box is arranged in the storage box; the ultraviolet sterilization lamps and sterilization devices are arranged on the side walls of the inner box; the control box is arranged in the gap; a pressing device is arranged in the inner box; a filtering plate component is arranged below the pressing device; the waste liquid collecting box is arranged below the filtering platecomponent; a water drainage pipe is arranged at the bottom of the waste liquid collecting box; an electric box cover is arranged above the storage box; and a pushing component is arranged above the outer wall of one side of the storage box. According to the waste storage device, the ultraviolet sterilization lamps are arranged, so that sterilization can be performed on waste, and health threats to users due to bacterium breeding can be avoided; the electric box cover and the pressing device are arranged, so that multi-layer separation can be performed on the waste, and pollution caused by thefact that bacteria carried by the waste overflows to the outside can be avoided; and meanwhile, the waste can be downwards pressed by the pressing device, so that the use space of the inner box can be utilized in the maximized manner.

The invention discloses fruit-vegetable selenium-enriched compound fertilizer, which is prepared from the following components in parts by weight: 200 to 240 parts of a mixture of chicken manure, duck manure and sheep manure, 50 to 70 parts of a mixture of sweet potato leaf and lettuce leaf, 30 to 50 parts of floating aquatic plant dry powder, 5 to 15 parts of clam shell powder, 20 to 30 parts of urea, 15 to 25 parts of sodium selenite, 4 to 6 parts of manganese sulfate, 5 to 7 parts of zinc sulfate, 3 to 5 parts of magnesium sulfate, 5 to 7 parts of phosphate rock powder, 3 to 5 parts of culture and 18 to 22 parts of potassium humate. According to the fruit-vegetable selenium-enriched compound fertilizer, through adding poultry-livestock manures and plant fibers, overall nutrients are provided for the growth of a crop; the sodium selenite is applied to the selenium-enriched fertilizer; the threats of the fertilizer self to the health of a producer and a consumer are evaded. Meanwhile, fermentation is carried out on the plant fibers and the poultry-livestock manures by adopting the culture; organic compounds of high molecular protein and the like in the plant fibers and the poultry-livestock manures are decomposed; the organic compounds are degraded into nutritional ingredients which are suitably absorbed by a plant; the absorption factor of the crop to a nutritional substance can be improved.

The invention discloses a selenium-enriched biological preparation. The selenium-enriched biological preparation is mainly prepared from the following components in parts by weight: 2 to 6 parts of humic acid, 0.4 to 0.8 part of a selenium-enriched raw material, 20 to 30 parts of corn straw, 10 to 20 parts of folium mori, 1 to 3 parts of a natural surfactant, 1 to 2 parts of calcium hydrogen phosphate, 0.5 to 1.5 parts of grass meal, 20 to 24 parts of diatomite, 5 to 9 parts of a soil conditioner, 1 to 3 parts of magnesium sulfate, 10 to 12 parts of urea, 5 to 7 parts of silicon sulfate, 0.4 to 0.6 part of mountain flour and 4 to 6 parts of a strain. By adding plant fibers, comprehensive nutrients are provided for the growth of crops; any one of selenium ore powder, amino acid selenium and sodium selenite is applied and traditional sodium selenate is not used, so that threats, caused by the biological preparation, to health of producers and consumers are avoided. With the adoption of the selenium-enriched biological preparation, the content of selenium in the crops is effectively improved, and agricultural and forestry residues can also be reutilized; the selenium-enriched biological preparation has a wide market popularization value and remarkable social and economic benefits.

The invention discloses formaldehyde-free tissue fixing preservative liquid and a preparation method thereof, and belongs to the technical field of tissue fixing liquid. The fixing preservative liquidis prepared from the following components in parts by weight: 41-83 parts of a protein fixing agent, 0.04-0.12 part of a preservative, 0.9-3.6 parts of an osmotic pressure adjusting agent, 9-39 partsof a humectant, 0.1-0.5 part of an antioxidant and 8-30 parts of water, wherein the protein fixing agent is composed of 2-methyl-1,2-benzisothiazolin-3-one, dimethyl sulfoxide and ethanol; and the preservative is composed of 5-chloro-2-methyl-4-isothiazoline-3-ketone and 2-methyl-4-isothiazoline-3-ketone. The fixing preservative liquid has the advantages of good fixation performance, strong preservative ability, no formaldehyde, and safty and no toxicity, and is suitable for tissue or specimen preservation, specimen fixation before pathological analysis and fixed storage of samples collectedby surgery.

The invention discloses a selenium-rich fertilizer for leafy vegetables. Each 1 kg of selenium-rich fertilizer for leafy vegetables is prepared from the following components by weight (g): 175.45g of urea, 149.18g of potassium chloride, 363.02g of calcium superphosphate, 123.25g of magnesium sulfate, 3.25g of ferrous sulfate, 0.53g of manganese sulfate, 0.06g of zinc sulfate, 0.02g of copper sulfate, 0.72g of boric acid, 7.50g of sodium selenite and 177.03g of ground phosphate rock. Sodium selenite is applied to the selenium-rich fertilizer, while traditional sodium selenate is not used, so that the health threat to a producer and a consumer caused by the fertilizer is avoided. In addition, sufficient selenium fertilizer is added; the necessary nutrients such as nitrogen, phosphorus, potassium, iron, magnesium, copper and zinc for plants are added by aiming at the fertilizer requirement law of the leafy vegetables; the labor-saving, time-saving and multi-purpose effects are put into fully play; and the selenium-rich fertilizer plays an important role in production of selenium-rich vegetables, and is convenient and safe to fertilize, relatively low in cost, beneficial to popularization, and wide in application prospect.

The invention discloses an environment-friendly toner cartridge, which comprises a casing, and a paper feeding groove is arranged on the casing, and a paper feeding roller is arranged in the paper feeding groove, and both ends of the paper feeding roller are connected with the paper feeding groove. The inner wall is rotatably connected, the housing is provided with a toner cartridge, and both sides of the housing are provided with connecting devices, the top of the housing is provided with a powder inlet, and the powder inlet is connected with a powder pipe. The powder feeding pipe is located in the housing, the other end of the powder feeding pipe is connected to the toner cartridge, and the powder feeding pipe is connected to the toner cartridge, a plunger is provided in the powder feeding port, and the powder feeding port is connected to the plunger A sealing ring is arranged between, and the sealing ring is fixed on the inner wall of the powder feeding port, and a sealing device is arranged around the plunger, and the sealing device is fixed on the top of the housing. The invention can prevent the carbon powder from spilling when adding the powder, so that the carbon powder floats in the air, pollutes the air, and threatens people's health, and has a simple structure and low cost.

The invention provides a toy disinfectant. The toy disinfectant is prepared from the following raw materials: red psychotria leaves, hosta ventricosa, denseflower indigo leaves, roughhaired holly roots, macleaya cordata, herba andrographitis, honeysuckle, folium onychii, chingma abutilon seeds, stramonium, saxifraga stolonifera, japanese clover, frangipane and scandent hop. The toy disinfectant is prepared by refining natural medicinal materials, can specifically eliminate bacteria on toys for children, has effects of inhibiting acarid, escherichia coli, proteusbacillus vulgaris, typhoid bacillus, staphylococcus, pseudomonas aeruginosa and the like, and can guarantee sterilization cleanness. The raw materials of the toy disinfectant are natural medicinal materials, so that the toy disinfectant avoids threat on children's health and has the characteristics of being high in efficiency and friendly to environment, having no irritation, and having no toxic or side effects.

The invention discloses a selenium-rich fertilizer for fruits / vegetables. Every kilogram of fertilizer contains 165.43g of urea, 178.87g of potassium chloride, 363.02g of calcium superphosphate, 123.25g of magnesium sulfate, 3.25g of ferrous sulfate, 0.53g of manganese sulfate, 0.06g of zinc sulfate, 0.02g of copper sulfate, 0.72g of boric acid, 10.00g of sodium selenite and 154.85g of ground phosphorite. The selenium-rich fertilizer for fruits / vegetables has important functions for producing selenium-rich fruits / vegetables, is convenient to apply, has the advantages of high safety and lower cost, is beneficial to popularization, and has wide application prospects.

The invention provides a tap water detection device which comprises a PH value sensor and a water quality sensor. The probes of the PH value sensor and the water quality sensor are connected with a water pipe. The signal output ends of the PH value sensor and the water quality sensor are electrically connected and in signal connection with a core control system. The core control system is electrically connected and in signal connection with an electromagnetic valve and a short message module. The PH value sensor is used for collecting the ph value of tap water and outputting the ph value to the core control system. The water quality sensor is used for collecting the turbidity of tap water and outputting the turbidity to the core control system. The core control system is used for analyzingand judging according to the pH value of the pH value sensor and the turbidity of the water quality sensor, controlling the short message module to send a short message to inform a user when discovering that the water quality is unqualified, and controlling the electromagnetic valve to close the water pipe. The device provided by the invention can automatically close a tap water main gate according to detected water quality indexes of tap water, so as to prevent health threats caused by misuse of unqualified water.

The invention provides a toy disinfectant. The toy disinfectant is prepared from Herba Typhonii, Caulis Sargentodoxae, Semen Torreyae, Bulbus Lycoridis Aureae, Rhizoma Pteridii Latiusculi, Semen Sterculiae Nobilis, Fructus Tubocapsici Anomali, Fructus Ulmi Macrocarpae, Daphne genkwa Sieb. et Zucc., Rhizoma Paridis, Herba seu Radix Delphinii Grandiflori, Herba Urenae Procumbentis, Dryopteris setosa (Thunb.) Akasawa and Pteris multifida. The toy disinfectant has the advantages that prepared from natural medicinal materials by means of elaborate extracting, the toy disinfectant is targeted at eliminating bacteria on toys of children and capable of inhibiting staphylococcus, salmonella, candida albicans, pneumobacillus, escherichia coli, proteusbacillus vulgaris and the like; the toy disinfectant prepared from the natural medicinal materials avoids threat to health of the children and is efficient, non-irritating, environment friendly and free of toxic or side effect while sterilization and cleaning are guaranteed, thereby being applicable to various wood toys, plastic toys, leather toys and the like.

The invention discloses a touch device for the electromagnetic field radiation sensitivity test on a capacitive touch screen. The touch device comprises an electromagnetic field isolation chamber, andthe capacitive touch screen is arranged in the electromagnetic field isolation chamber. The touch device comprises a touch mechanism arranged in the electromagnetic field isolation chamber, and a remote control mechanism arranged outside the electromagnetic field isolation chamber. The remote control mechanism is in control connection with the touch mechanism. The touch mechanism comprises a touch pen used for touching the capacitive touch screen, and a driving mechanism used for driving and controlling the touch pen to perform the touch test on the capacitive touch screen. According to the invention, the limit field intensity test can be carried out on the capacitive touch screen and the requirement of an aviation aircraft is met. The touch stability of the capacitive touch screen is guaranteed, and the safety is improved. The remote test mode is adopted, and the electromagnetic field isolation chamber provides isolation. Therefore, the test personnel cannot be influenced by the high-intensity field intensity, so that the health threat of the test personnel is completely eradicated. A safe testing environment is provided. The touch device is simple and reliable in design and easyto implement.

The invention relates to a long-acting anti-fog silicon-based gel antifogging agent for a lens and a preparation method and application thereof. The antifogging agent is composed of a silicon-based sol solution and a long-chain polysaccharide / amino molecule crosslinking solution, the silicon-based sol solution comprises tetraethyl orthosilicate, cyclopentasiloxane, a polydimethylsiloxane crosslinking polymer and an organic solvent; the long-chain polysaccharide / amino molecule crosslinking solution comprises deionized water, polysaccharide molecules, polyvinyl alcohol, an amino molecule surfactant and a photocatalytic adhesive agent cerium oxide. Silica sol in the anti-fog sol is crosslinked with hydrophilic polysaccharide molecules and amino molecules to form a core-shell structure with arigid center and a soft long chain, water drops are enabled to evenly and rapidly expand whole surface through capillary action, and moisture absorption and antifogging effects are achieved; the long-chain polysaccharide / amino molecule is used as an end-capping reagent to inhibit the volatilization of a surfactant, cerium oxide is introduced to increase the surface adsorption force of silica sol,and the problem of poor light transmittance caused by poor adhesive force of an original water-based anti-fog coating film is solved.

The invention discloses a mixing apparatus for manufacture of polyamide wax, comprising a stirring tank, a first feed bucket, a feed pump, screw stirring blades, and a heating resistance wire layer; areducer is arranged at the top of the stirring tank; a stirring motor is disposed at the top of the reducer; a feed pipe is arranged on one side of the stirring motor; the feed pump is arranged at the bottom of the feed pipe; a feed bucket support is arranged at the bottom of the feed pump; the first feed bucket is arranged at the rear of the feed pump; a second feed bucket is arranged in the front of the feed pump; a feed tank support disc is arranged on one side of the feed bucket support. The mixing apparatus has the advantages that the heating resistance wire layer can heat a material toa specified temperature; the stirring efficiency is very high; the first feed bucket and the second feed bucket can add the material separately with no mutual influence, chemical reactions outside thestirring tank are avoided, the mixing apparatus has high stirring efficiency, and health threat upon a stirring operator is avoided.

The invention discloses a special disinfection device for animal breeding and plant cultivation. The device comprises a water supply mechanism used for supplying water, a first control unit used for controlling the flow of the water, a saline water supply mechanism used for supplying saline water, a second control unit used for controlling the flow of the saline water, a mixing mechanism used for mixing the water and the saline water, a power supply unit and an electrolyzer. The water supply mechanism and the saline water supply mechanism are connected with the mixing mechanism which is connected with the electrolyzer. The electrolyzer is connected with the power supply unit which is used for supplying power to the electrolyzer. The first control unit is connected with the water supply mechanism. The second control unit is connected with the saline water supply mechanism. By mean of the special disinfection device, the structure is simple, and the sterilization effect is good.

The present invention discloses a double-ring flow-limiting type tree nutrition delivering apparatus, and belongs to the double-ring flow-limiting type tree nutrition delivering apparatus in the technical field of afforestation. A purpose of the present invention is to provide a double-ring flow-limiting type tree nutrition delivering apparatus so as to completely drip the drug liquid in the bag and save the drug liquid resource. The double-ring flow-limiting type tree nutrition delivering apparatus comprises a nutrition liquid holding bag and a dripping pipe, wherein the nutrition liquid holding bag and the dripping pipe are connected, the nutrition liquid holding bag comprises an outer layer body and an inner layer body, the outer layer body and the inner layer body are integrally adhered, a belt-shaped member is adhered outside the outer layer body, the adhesion between the belt-shaped member and the outer layer body is larger than the adhesion between the outer layer body and the inner layer body, rings are correspondingly arranged on both sides of the outer layer body, the outer layer body is a PE airtight membrane, the inner layer body is a ePTFE modified membrane or ePTFE laminated composite membrane, the top portion of the dripping pipe is provided with a tapered hole, a floating ball is arranged in the tapered hole, the top portion of the tapered hole is provided with a funnel-like flow limiting plate, and the middle portion of the funnel-like flow limiting plate is provided with a through hole.

The invention discloses an oil fume waste gas treatment device for a kitchen. The oil fume waste gas treatment device for the kitchen comprises a gas inlet funnel; the inner wall of one side of the gas inlet funnel is provided with a placement frame; the outer wall of one side of the placement frame is provided with an exhaust fan; the inner wall of one side of the gas inlet funnel is provided with an oil fume pipe; one end, far away from the gas inlet funnel, of the outer wall of the oil fume pipe is provided with a treatment tank; the positions, close to the top and the bottom, of the innerwall of one side of the treatment tank are provided with fixed sheets respectively; the outer wall of the top of the treatment tank is provided with air inlets which are distributed at an equal interval; the inner walls of the two sides of each air inlet are provided with bulges respectively; the position, at the bottom, of the outer wall of one side of the treatment tank is provided with a rectangular hole; and a drawing plate is connected to the inner wall of the bottom of the rectangular hole in an inserting manner. The oil fume waste gas treatment device for the kitchen can prevent the phenomenon that oil fume is difficulty cleaned due to high temperature, can clean relatively large particle impurities in the oil fume, can retard the flowing speed of the oil fume and prevents the phenomenon that the device cannot timely perform purification treatment on the oil fume caused by too rapid flowing speed of the oil fume.