65results about How to "Collect completely" patented technology

A slit impaction sampling device is for collecting airborne contaminants for subsequent analysis, includes a base with a microscope slide disposed thereon. The microscopic slide has an adhesive media located thereon to assist in adhering airborne particles on the microscopic slide. The base has a top cap secured thereto. The top cap has an inlet opening formed therethrough. The inlet opening has an outer venturi section and an inner laminar section that directs the air flow through the inlet opening into contact with the adhesive media such that the airborne particles form an impaction trace thereon. The air then flows around the microscope slide into an outlet passage and to a vacuum source.

The invention discloses a recovery method and a recovery device for waste carbon powder, and regenerated plastic thereof. The recovery method for waste carbon powder comprises the steps of: conducting suction filtration to a raw material of waste carbon powder so as to remove impurities therein; pumping and filtering out the waste carbon powder with impurities removed, and collecting the powder for storage. The recovery device consists of an air duct, an air pumping mechanism connected to the air duct for pumping the carbon powder flow, a filtering mechanism arranged in front of the air duct for impurity filtration, an exhausting and powder filtering mechanism only able to exhaust air but unable to permeate carbon powder and a carbon powder storing mechanism that are positioned at the back of the air duct. The regenerated plastic is prepared by cooperation of the raw material of waste carbon powder recovered by the recovery method or the recovery device and waste plastic. The recovery method for waste carbon powder in the invention is simple and reliable, and has no environmental pollution. The recovery device for waste carbon powder in the invention has the advantages of simple structure, utility and convenience, high carbon powder recovery efficiency and no environmental pollution. Prepared by waste carbon powder, the regenerated plastic can have improved antistatic property or conductivity, and the plastic product can have better surface gloss.

An apparatus having a roughness sensing system and a roughness measurement sensor, wherein a slide element and a probe tip come to operation, and method of use thereof. The slide element is arranged on an extreme end of a probe pin in the form of a scan-slide element. The probe tip is integrated into the probe pin, and the distance between the scan-slide element and the probe tip is predetermined. The roughness sensing system is a 1D-, 2D- or 3D-scanning system having a parallelogram configuration. The apparatus further has a serving device which enables moving the probe pin together with the scan-slide element and the probe tip jointly over a surface to be scanned.

A dust collector capable of recollecting the particulate dust is disclosed. The dust collector comprises a collector body having a dust collection tube, a dust collection barrel, a filter barrel which comprises a filter net and an air conduit with one end connected to the inner portion of the filter barrel and another end formed into an air outlet adaptor, a dust clean device and an air suction unit which drives the air with particulate dust to pass the filter net and a cover used to either close or open the air outlet adaptor. When the particulate dust has been accumulated on the filter net more than a preset volume, the dust collector will start to operate its clean maintenance process. The cover will be uncovered from the air outlet adaptor and one end of the dust collection tube will be fixed onto the air outlet adaptor.

The present invention is process and apparatus for extracting high purity Re from Re-W alloy, and belongs to the field of rare metal extracting technology. The apparatus of the present invention capable of four parts: an O2 metering device, a zonal heating system, a cooling and collecting zone and a tail gas buffering collector. Re-W alloy is oxidized and separated through air lancing reaction in a tubular oxidizing furnace with different temperature zones, and the Re oxide is heated and reduced in H2 atmosphere to obtain high purity Re powder. The apparatus has integral compact structure, the process has short technological flow, automatic control, well oxidation of the alloy, high separation efficiency and effective collection and utilization of the tail gas, and the present invention is suitable for industrial production.

The invention relates to a smashing recycling machine, in particular to a corrugated board smashing recycling machine. The corrugated board smashing recycling machine aims at achieving the technical effects of being capable of carrying out multi-stage smashing treatment, preventing fragments from being splashed out and saving labor. In order to achieve the technical effect, the corrugated board smashing recycling machine comprises a collection box and the like, a crushing mechanism is connected to the middle of the top wall of the collection box, a smashing mechanism is arranged on the inner rear wall of the collection box, and the smashing mechanism is connected with the crushing mechanism. The effects that multi-stage smashing treatment can be achieved, fragments can be prevented from being splashed out, and labor can be saved are achieved, the purpose of carrying out multi-stage smashing treatment on corrugated boards for recycling is achieved by arranging the crushing mechanism andthe smashing mechanism, and a baffle, a fixing rod and a hook are arranged in order to achieve the purpose that after all the corrugated boards are smashed, the smashed corrugated boards can be collected.

The invention discloses a powder electrostatic spraying system, belonging to the technical field of spraying devices. The powder electrostatic spraying system comprises a workbench, wherein the workbench is provided with a spraying room, a multi-pipe cyclone separator and a filter; the spraying room comprises two side plates and a bottom plate; the two side plates are respectively arranged on the two sides of the bottom plate; the bottom plate is fixedly arranged on the workbench; the side plates are provided with spraying guns; pipelines of the spraying guns are connected with powder buckets; the spraying room is provided with a suspension chain; the multi-pipe cyclone separator comprises a suction guide plate, a cyclone separator and a powder collection box; the suction guide plate is connected with the pipeline of the cyclone separator; the powder collection box is arranged on the lower end of the cyclone separator; the filter is arranged on the output end of the multi-pipe cyclone separator. As the multi-pipe cyclone separator and the filter compose a secondary recycling mechanism, powder is collected more completely, and recycling efficiency for ultra-thin dust is higher. The powder electrostatic spraying system avoids pollution, environment is protected, and working condition is improved.

The invention discloses an oil paint recycling device for spraying and a working method thereof, relates to the field of coating, and aims at solving the problem that oil paint has viscosity and is liable to get attached to the wall in the collecting process. The oil paint recycling device is characterized by comprising a paint mist collecting mechanism, wherein the paint mist collecting mechanismcomprises a flow guide pipe, the flow guide pipe is provided with a paint mist entry channel which is used for collecting paint mist, an air guide mechanism which is used for guiding the paint mist,an alkaline liquor overflow mechanism which is used for lowering the viscosity of the paint mist and a paint mist escape channel which is used for discharging the paint mist from top to bottom in sequence, a paint mist collecting box is fixedly connected to the paint mist escape channel, and a reaction kettle used for regenerating the oil paint is connected to the paint mist collecting box. According to the oil paint spraying device, the paint mist is guided into the flow guide pipe through the air guide mechanism, the alkaline liquor overflow mechanism is utilized for lowering the viscosity of the paint mist, the situation that the oil paint is attached to the wall is reduced, the oil paint is conveniently collected into the paint mist collecting box, the discharge volume of VOC is reduced, then the reaction kettle is utilized for treating the collected oil paint so that the oil paint can become recyclable oil paint, and thus energy conservation and emission reduction are achieved.

The invention provides a quick biological sample detection method which is characterized in that a detection sample is treated by a sample treatment liquid so as to form a magnetic bead, detected object and luminous marked micro particle magnetic bead composite; the treated detection sample is dropped on a biological chip; the detection sample flows to the other side along a capillary on the chip; under the action of a positioning magnetic field, the magnetic bead composite is gathered in a capillary detection region; an exciting light element generates exciting light with a certain wavelength to irradiate the detection region on the capillary; luminous marked micro particles on the composite generate emitting light; and a light detection element converts the intensity of the emitting light into a digital signal to form a detection result. Compared with a conventional lateral flow chromatography detection method, the quick biological sample detection method disclosed by the invention has the advantages of high sensitivity, wide detection range, high interference resistance, short reaction time and more suitability for being applied to quick detection on the biological sample.

The invention provides a screening system and a combine harvester. The screening system comprises a vibrating screen, a front sealing structure, a grain separating structure and a driving structure. The vibrating screen is provided with an upper screen area and a lower screen area, a lifting structure is arranged at the tail end of a corrugated plate in the upper screen area to increase the fall between the corrugated plate and a scaly screen, two-section lifting is formed in cooperation with a tail screen at the tail end, clustered crops are fully shaken to be scattered and loosened, and waste caused by the fact that crop straw carries grains to be discharged is avoided. Meanwhile, the front sealing structure is arranged at the front end of the corrugated plate to prevent the grains from being thrown out by the vibrating screen. The grain separating structure is arranged at the position, between a grain collecting area and an impurity collecting area, below the vibrating screen, so that clean grains are effectively separated from impurities such as straw, the grains are collected more completely and cleanly, waste is avoided, and the screening efficiency is improved.

The invention relates to the field of fungus harvesting, in particular to a movable whole-row harvesting device for edible fungi. The movable whole-row harvesting device aims to solve the problems that the hands are easily scratched when sharp cutters are held with the hands for picking, and people need to move the positions to pick mushrooms on a greenhouse frame in the picking process. The movable whole-row harvesting device for the edible fungi comprises a connecting frame, moving wheels, a supporting plate, mushroom picking moving mechanisms and the like; and the four moving wheels are symmetrically and rotationally connected to the two sides of the connecting frame, the supporting plate is fixedly connected to the lower portion of the inner side of the connecting frame, and the mushroom picking moving mechanisms are installed at the two sides of the connecting frame. According to the movable whole-row harvesting device, a swing plate swings back and forth through back-and-forth movement of a guide rod, mushrooms poked to the supporting plate can be pushed inwards to be collected conveniently, a telescopic plate can stretch out and draw back in the swing plate, the mushrooms ofdifferent sizes can be pushed conveniently, and the harvested mushrooms cannot be crushed in the pushing process due to the fact that the telescopic plate can stretch out and draw back in the pushingprocess.

The invention discloses a full-automatic element separating and purifying device which comprises an injection pump, a first multichannel switch valve, a two-site six-way valve, a second multichannel switch valve, an ionic chromatographic column and a collector, wherein the injection pump is connected with a public opening of the first multichannel switch valve, and the rest connectors of the firstmultichannel switch valve are respectively connected with a pure water tank, a leacheate tank, a concentrated acid tank, an air tank and a fifth opening of the two-site six-way valve; a first openingand a fourth opening of the two-site six-way valve are communicated through a sample feeding ring, a second opening of the two-site six-way valve is used for receiving a sample, a third opening of the two-site six-way valve is used for discharging a redundant sample in the sample feeding ring, a sixth opening of the two-site six-way valve is communicated with an inlet of the ionic chromatographiccolumn through a pipeline, and an outlet of the ionic chromatographic column is communicated with the collector through the second multichannel switch valve. The device solves the technical defect ofthe low efficiency of an existing element separating and purifying device, can automatically operate, avoids time-consuming manual operation and can effectively prevent related safety accidents caused by corrosive chemical reagents.

The invention discloses a garbage dumping method based on a bioreactor principle, comprising the following steps of: dumping garbage, recharging percolate (concentrate), carrying out micro-biological degradation to generate dumping gas, and collecting and processing the percolate, wherein after the step of dumping garbage begins, the dumped garbage is recharged by the percolate (concentrate) generated after the filtered percolate is collected and processed in the dumped garbage; in the micro-biological degradation process, the dumping gas is generated; and the generated percolate which reaches the standard is externally discharged. The garbage dumping method disclosed by the invention has the advantages of stronger biodegradation function, high garbage biodegradation speed, short stabilization time, high dumping gas yield, complete collection of the dumping gas, no need of a percolate treatment facility and saved cost.

The invention discloses an achievement feedback statistical system for informatization teaching. The invention belongs to the technical field of teaching management, the system comprises an collectionunit, the output end of the collection unit is electrically connected with the input end of an arrangement module; the output end of the arrangement module is electrically connected with the input end of a central processing unit; the output end of the central processing unit is electrically connected with the input end of a wireless module, the output end of the wireless module is electrically connected with the input end of a teacher receiving end and the input end of a displayer, the teacher receiving end is bidirectionally and electrically connected with a database, and the database is bidirectionally and electrically connected with a comparison module. According to the achievement feedback statistics system for informatization teaching, through mutual cooperation of the collection unit, the arrangement module, the central processing unit, the teacher receiving end, the evaluation module, the evaluation collection unit, the comparison module and the feedback module, information can be collected and processed more comprehensively, and improvement and adjustment work of teachers is further facilitated.

The invention belongs to the field of food detection, and particularly relates to a method for identifying apis cerana honey and apis mellifera honey. The method comprises the steps of sample extraction, liquid chromatography-tandem high-resolution mass spectrometry detection and analysis. The provided method is a simple, quick and environment-friendly method for identifying apis cerana honey andapis mellifera honey. Compared with other methods, the method provided by the invention has the advantages that a feature region is completely visualized, the endogenous substance information is completely acquired, the operation and popularization are convenient, the important significance is realized on accurately identifying the apis cerana honey and the apis mellifera honey, the industrial development of bee products is favorably promoted, and the healthy and sustainable development of the beekeeping industry is favorably realized.

The invention discloses a phosphine and sodium trimetaphosphate preparation method, wherein a mixture of a sodium salt of trivalent phosphate and a sodium salt of pentavalent phosphate is heated to a temperature of 300-400 DEG C to be subjected to a disproportionation and condensation reaction under nitrogen protection so as to obtain phosphine and sodium trimetaphosphate, wherein a sodium-phosphorus ratio of the mixture is 0.93-0.99, and a ratio (P<III> / P<V>) of trivalent phosphorus atoms to pentavalent phosphorus atoms of the mixture is 1-1.34. With the method, decomposition and oxidation of an intermediate product phosphine produced from the reaction are avoided, the important chemical industry material phosphine is collected, the condensation reaction for sodium trimetaphosphate production is promoted in the presence of the phosphine, the high purity sodium trimetaphosphate is obtained, long chain high molecule weight substance production is avoided, the sodium trimetaphosphate process is shortened, environmental pollution is reduced, production energy consumption is reduced, production cost is reduced, the whole production process and the final product meet food industry requirements, and comprehensive utilization is achieved.

The invention relates to a block dissolving device, and especially relates to a cement block dissolving device for preparing concrete. The technical problem to be solved in the invention is to providea cement block dissolving device for preparing concrete, capable of intermittently pouring agglomerated cement into the device, dissolving the agglomerated cement, completing block dissolving in a manpower saving manner and preventing an obstruction phenomenon. The cement block dissolving device for preparing concrete, provided to solve the technical problem, comprises a block dissolving frame, first bearing seats, a roller, a crushing teeth, a first rotating rod, a left rack, a top plate, a servo motor, second bearing seats, a second rotating rod and a reel; and the bottom wall of the blockdissolving frame is evenly provided with small holes, the lower part of the left side of the block dissolving frame is connected with the left rack, the lower parts of the left wall and the right wallof the block dissolving frame are connected with the first bearing seats, and the first bearing seats are connected with the first rotating rod. The cement block dissolving device for preparing concrete can intermittently pour the agglomerated cement into the device, dissolve the agglomerated cement, complete block dissolving in a manpower saving manner and prevent the obstruction phenomenon.

The present invention relates to the field of plastic processing equipment, in particular to a novel four-roll grinding device, characterized in that: the upper left grinding roll and the upper right grinding roll are arranged in pairs, the lower left grinding roller and the lower right grinding roller are arranged in pairs, the The upper part of the lower left grinding roller is arranged tangentially to the lower part of the upper left grinding roller, the upper part of the lower right grinding roller is arranged tangentially to the upper right grinding roller, and the hopper is fixed directly above the upper left grinding roller and the upper right grinding roller, The lower end of the left feed chute is fixed above the left material receiving trough and the upper end is fixed with a left scraper, the left scraper is attached to the lower left grinding roller, and the lower end of the right material guide chute is fixed above the right material receiving chute and Its upper end is fixed with a right scraper, and the right scraper is attached to the lower right grinding roller, and the upper end of the middle guide groove is fixed below the left lower grinding roller and the right lower grinding roller and its lower end is fixed above the left receiving chute. The grinding speed of the four-roll mill in the present invention is relatively fast.

The invention relates to a silicon carbide environmentally-friendly smelting process which is characterized by adopting underground smelting, overground smoke purification utilization and control by virtue of an overground computer monitoring system. The invention also relates to a silicon carbide environmentally-friendly smelting device which is characterized by comprising a silicon carbide underground smelting workshop, an underground closed type silicon carbide kiln, an underground closed type silicon carbide kiln top negative hot pressure smoke acquiring louver device, an explosion-proof screen and a camera, a hot smoke acquirer at the bottom of the underground silicon carbide kiln, a movable explosion-proof wall, a movable explosion-proof wall overground smoke purifying and distributing chamber, a carbon dioxide acquirer and a dry ice device, a hydrogen sulphide and sulphur dioxide reaction lime pond, a precipitated water circulating recycling system, a carbon monoxide acquirer and a boiler, a methyl mercaptan and combustible gas acquirer, an overground travelling car and an overground computer monitoring system, an overground water supply system and a hot smoke induced draught system. By adopting the method provided by the invention, components in the hot smoke of silicon carbide are purified and decomposed, and neutralization and utilization are carried out, thus the hot smoke is completely environmentally-friendly.

The invention discloses a garbage dumping method based on a bioreactor principle, comprising the following steps of: dumping garbage, recharging percolate (concentrate), carrying out micro-biological degradation to generate dumping gas, and collecting and processing the percolate, wherein after the step of dumping garbage begins, the dumped garbage is recharged by the percolate (concentrate) generated after the filtered percolate is collected and processed in the dumped garbage; in the micro-biological degradation process, the dumping gas is generated; and the generated percolate which reaches the standard is externally discharged. The garbage dumping method disclosed by the invention has the advantages of stronger biodegradation function, high garbage biodegradation speed, short stabilization time, high dumping gas yield, complete collection of the dumping gas, no need of a percolate treatment facility and saved cost.

An apparatus having a roughness sensing system and a roughness measurement sensor, wherein a slide element and a probe tip come to operation, and method of use thereof. The slide element is arranged on an extreme end of a probe pin in the form of a scan-slide element. The probe tip is integrated into the probe pin, and the distance between the scan-slide element and the probe tip is predetermined. The roughness sensing system is a 1D-, 2D- or 3D-scanning system having a parallelogram configuration. The apparatus further has a serving device which enables moving the probe pin together with the scan-slide element and the probe tip jointly over a surface to be scanned.

The invention discloses a multilevel gas-liquid two-phase separation device, which solves the problems in the existing separation device that gas-liquid separation is not thorough and carbon dioxide cannot be collected completely. Three-level separation technology is adopted by the separation device, wherein a first-level separation sieve adopts a nozzle-type structure for sieving, and a second-level separation sieve and a third-level separation sieve both adopt an eccentric funnel-type structure, so that a gas-liquid mixture can be separated as long as possible on an area as large as possible, the gas-liquid mixture is fully separated, a good separation effect is achieved, meanwhile, a three-level collection mode is adopted, gas after each level of separation is collected, and separated gas is completely collected, so that guarantee is provided for carbon dioxide drive physical simulation experiment.

The invention discloses a soybean particle softening device for soybean oil production, and relates to the technical field of soybean processing. According to the invention, the problems as follows are overcome: in the prior art, soybeans are cleaned before being softened, most of water after cleaning is directly poured out, so that great waste is caused; and a steam softening roller for preparingsoybean oil cannot well and uniformly soften soybean particles, so that the softening effect of part of soybean particles is poor, and the soybean particles easily block a discharge port during discharging to influence the working efficiency. A scheme is provided as follows: the soybean particle softening device comprises an upper frame, a lower frame and a softening cylinder, the bottom of the upper frame is connected with the softening cylinder, the bottom of the softening cylinder is connected with the lower frame, a feed hole is formed in the top of the softening cylinder, and a dischargehole is formed in the bottom of the softening cylinder. According to the invention, integrated operation of soybean particle cleaning, softening and collecting is achieved, soybean softening is moreefficient, waste water can be reutilized, soybean softening is more uniform, and meanwhile the problem of blockage during discharging of soybeans can be prevented.

The invention discloses an AGM separator electrolyte collecting device for a storage battery. The AGM separator electrolyte collecting device comprises a box body, a lower pressing plate is arranged in the box body, a plurality of supporting plates are arranged on the lower end surface of the lower pressing plate and are fixedly installed at the bottom of the inner wall of the box body, a placing groove is formed in the upper end surface of the lower pressing plate, a separator is arranged in the placing groove, and collecting components are arranged on the inner sides of the supporting plates. According to the AGM separator electrolyte collecting device for the storage battery, a collecting hopper, a splash-proof plate, a rolling extrusion device and the like are arranged, the effects of automatically collecting electrolyte in the separator, performing full extruding and complete collecting and preventing splashing are achieved, and the problems of insufficient electrolyte extrusion, high labor intensity, time and labor consumption and incapability of reaching the measurement standard due to the fact that the electrolyte in the AGM separator is manually extruded at present and the electrolyte of the AGM separator is extracted in a fist-clenching extrusion mode are solved.

The invention relates to an automatic filature machine, in particular to a high-efficiency and energy-saving filature collecting tank. The invention mainly solves the technical problems that a filature tank and a collecting tank of the filature machine are arranged in a separate mode, cocoons without ends or tetelettes in the filature tank needs a cocoon shifting device to be delivered to the collecting tank for collection, so that the time and labor are wasted, the collection is incomplete, and the like in the prior art. The high-efficiency and energy-saving filature collecting tank comprises a stand, wherein the filature tank and the collecting tank are arranged on the stand; the filature tank and the collecting tank are arranged in a parallel mode and are connected into a whole; the collecting tank is communicated with the bottom of the filature tank through a sloping plate; 2 or more bar cocoon plates are arranged between the filature tank and the collecting tank; a channel which can allow the cocoons without ends to go through is left between adjacent bar cocoon plates, and clearances which can allow the tetelettes to go through are left at the lower end of the bar cocoon plates and the bottom of the filature tank; a drip catcher is arranged in the collecting tank and is connected with a drive device; and a water adding pipe is arranged at one side of the filature tank, is provided with a water spout hole, and is connected with a water delivering device.

The invention discloses a waste collecting device for die machining. The device comprises a main body, a fixed plate and a rotary drum, wherein a waste inlet is formed in the top of the main body; a fixed block is fixed to the inner wall of the main body; the right side of the fixed block is connected with a hydraulic rod; an inclined plate is tightly attached to the lower portion of the hydraulicrod, the fixed plate is fixed to the right side of the inclined plate; baffles are fixed to the lower portions of the left side and the right side of the fixed plate; the rotary drum is mounted belowthe fixed plate; a motor is mounted on the right side of the rotary drum; a fixing rod is fixed to the inner wall of the main body; and a first collecting cabinet is arranged below the rotary drum. The waste collecting device for die machining is provided with the rotary drum. According to the waste collecting device for die machining, the rotary drum mounted on the fixed plate rotates, so that falling waste is flattened, compressed into sheets and then falls into the first collecting cabinet, and waste treatment and utilization are easy and simple. Meanwhile, the compressed waste occupies small space, and more waste is collected by the first collecting cabinet.

The invention belongs to the technical field of waste gas treatment, and relates to an ammonia fog collecting and treating system for an electrolytic plant. The system comprises an electrolytic area,inter-cell air suction pipes, branch air suction pipes, a main air suction pipe, an ammonia absorbing tower, a fan, a chimney, and a laminating device; the inter-cell air suction pipes are arranged atthe positions, above the outer side walls of electrolytic cell sets on the two ends and above adjacent side walls of the adjacent electrolytic cell sets, in the electrolytic area, the inter-cell airsuction pipes, the branch air suction pipes, the main air suction pipe, then ammonia absorbing tower, the fan and the chimney are sequentially connected, the laminating device covers the cell faces ofthe electrolytic cell sets, the two sides of the laminating device are arranged above the inter-cell air absorbing pipe, and an air suction opening is formed in the side wall of the inter-cell air absorbing pipe. The system is used for effectively solving the problem that due to the too large electrolytic cell span of the electrolytic plant, waste gas collecting and treating are difficult, the ammonia fog collecting and treating efficiency is high, the effect is good, no wastes are discharged, the system is environment-friendly and energy-saving, resource use is reasonable, and the system isgood in economic benefit.

The invention relates to a method and a device for preparing high-purity ruthenium. The method comprises the following steps that: hydrogen dioxide is added into ruthenium hydrochloride solution to be undertaken one section of oxidation distillation reaction, then oxidant is added into the liquid to be undertaken a second section of adequate oxidation distillation reaction, then the oxidation distillation is repeatedly performed to extract the ruthenium, ruthenium tetroxide gas which is discharged from the second section of oxidation reaction is adequately collected, the ruthenium tetroxide gas is transformed to ruthenium hydrochloride absorption liquid, ammonium chloride is added into the ruthenium hydrochloride absorption liquid to be crystallized and precipitated, and the prepared ammonium chloride ruthenium precipitant is calcined and reduced to sponge ruthenium under the atmosphere of hydrogen; and the prepared sponge ruthenium is dried under the atmosphere of the hydrogen after being boiled and washed by mixed acid of aqua regia and hydrofluoric acid to obtain the high-purity ruthenium.

The invention discloses a welding fume purification device for electroslag pressure welding on a construction site and a use method thereof, comprising a box body, a collection assembly is installed on the outer surface of the right side of the box body, and a baffle plate is arranged on the front side of the box body , the bottom of the inner wall of the box is equipped with a slide rail, the surface of the slide rail is slidably installed with a slider, the top of the slider is installed with a collection tank, the inside of the box is equipped with a dust removal mechanism, the box A dust cover is installed on the top of the box body, and a clamping mechanism is installed on the left outer surface of the box body. The invention improves the commonly used welding fume purification device, reduces the volume, and can be fixed on the surface of the steel bar according to the needs during use, which is convenient to use and easy to carry. The position of the collecting head can be adjusted according to different welding positions, so as to ensure that the welding fume can be collected completely, and its structure is simple and easy to adjust.