34 results about "Mixed dust" patented technology

The invention relates to the field of photovoltaic panel cleaning, in particular to an array type photovoltaic equipment intelligent cleaning robot which comprises a robot body, a walking mechanism and a cleaning mechanism, the walking mechanism is arranged at the bottom of the robot body, and the walking mechanism is used for driving equipment to move on the surface of an array type photovoltaic panel. The cleaning mechanism comprises a cleaning execution assembly and an adjusting mechanism. The adjusting mechanism is used for connecting the robot body with the cleaning execution assembly, and the adjusting mechanism can dynamically adjust the attaching state of the cleaning execution assembly and the surface of the photovoltaic panel according to the inclination angle of the photovoltaic panel; and the cleaning execution assembly is used for cleaning the surface of the photovoltaic panel and can clean stubborn substances. According to the photovoltaic panel cleaning device, stubborn stains on the surface of a photovoltaic panel can be cleaned, dust mixed in cleaning liquid can be reduced, the cleaning workload can be effectively reduced, the stains attached to the main cleaning rolling brush can be effectively reduced, and the cleaning effect of the main cleaning rolling brush can be effectively guaranteed.

The utility model discloses a ventilation file cabinet for medical record information data storage. The ventilation file cabinet comprises a cabinet body, the front side of the cabinet body is movably connected with a door plate, the inner wall of the cabinet body is fixedly connected with a placing plate, the two sides of the placing plate are both provided with ventilation openings, and the top of the cabinet body is fixedly connected with a protection cover. External airflow is sucked into the protection cover through the suction fan, when the airflow passes through the filter screen plate, doped dust is filtered out by the filter screen plate, when the airflow is in contact with the heating wire, the airflow is heated, the heated airflow enters the air injection plate, the air injection plate conveys the airflow into the cabinet body, the airflow penetrates through the ventilation opening, and the airflow enters the cabinet body through the ventilation opening. The file cabinet has the advantages that the cabinet body can be filled with hot air, the hot air has a certain drying effect, stored data can be protected against moisture, ventilation, dehumidification and mildew prevention are achieved, moisture generated in the file cabinet can be removed in time, the entering air flow can prevent the interior of the file cabinet from mildewing, and the storage safety of medical record information data is improved.

The utility model relates to the technical field of river channel cleaning, in particular to rice seed screening equipment which comprises a screening box, a plurality of supporting columns are evenly and fixedly installed at the bottom end of the screening box, a screening assembly is arranged in the screening box, and the screening assembly comprises a screening plate obliquely arranged in the screening box. And a plurality of filtering holes are uniformly formed in the screening plate. Preliminary screening can be conducted on rice seeds through the filtering holes in the screening plate, the vibration motor in the working state can drive the screening plate to vibrate in the screening box, the screening efficiency can be improved, and after mixed dust and the rice seeds of empty and immature rice fall into the discharging hopper, the dust suction pump is started at the moment, and the screening efficiency is improved. At the moment, a material suction pipe communicated with the feeding pipe is matched with a material suction head, so that dust with light weight and empty and immature rice can be sucked into a dust suction pump and further discharged through a blow-off pipe at an outlet of the dust suction pump, the rice seeds can be further screened, and the screening quality of the rice seeds can be guaranteed.

The utility model discloses a mixed dust removal treatment system which comprises a local workshop treatment system, a local fixed suction hood treatment system, a local movable suction hood treatment system and a secondary dust removal system, and the secondary dust removal system comprises an air return pipeline, a dust remover D, an air supply fan and an air supply pipeline. One end of the air return pipeline is an air return port located in the plant, the other end of the air return pipeline is communicated with the air inlet end of the dust remover, an electric valve D is arranged at the air return port, the exhaust end of the dust remover is communicated with the air inlet end of the air supply fan, and the exhaust end of the air supply fan is communicated with one end of the air supply pipeline. And the other end of the air supply pipeline is branched into an air supply branch pipe and an air exhaust branch pipe towards the inside and the outside of the plant respectively. By the adoption of the mixed dust removal treatment system, a reasonable treatment mode can be selected according to needs, and the problems that during dust removal treatment of a plant space, local captured smoke overflows, and overall treatment investment and energy consumption are high are solved.

The utility model discloses traditional Chinese medicine decoction piece impurity removing equipment which comprises an impurity removing box, a feeding hopper is arranged on the side surface of the impurity removing box, a driving motor is arranged on the other side face of the impurity removing box, and a driving roller is installed at the output end of the driving motor. When the traditional Chinese medicine decoction piece impurity removing device is used, traditional Chinese medicine decoction pieces are put into the impurity removing box from the feeding hopper, then the driving motor and the exhaust fan are started, the driving motor drives the driving rod through the driving roller, then the traditional Chinese medicine decoction pieces are stirred, dust and disintegrating slag mixed in the traditional Chinese medicine decoction pieces fly into the impurity removing box, and then the exhaust fan rotates to generate suction force; under the action of the coarse filter screen, the traditional Chinese medicine decoction pieces large in size are detained in the impurity removal box, and mixed dust and slag enter the dust collection cover through the coarse filter screen, enter the dust collection box through the dust collection pipe and are detained in the dust collection box under the action of the filter bag, so that impurity removal and collection of the dust and the slag are completed, and the environment and the health of workers are prevented from being affected; and the practicability of the device is greatly improved.

The invention belongs to the technical field of medical animal model construction, and discloses a coal silicosis mouse model construction method and application. According to the method, a coal-silicon mixed dust suspension containing 15%, 25% and 50% of free silicon dioxide is prepared, and the concentration is 50 mg / ml; the method comprises the following steps: hanging an anesthetized healthy adult (6-8 weeks) C57BL / 6N male mouse on a fixing device, instilling 50 microliters of coal and silicon mixed dust suspension once per week by adopting an oropharynx inhalation method for 4 weeks continuously, and establishing a coal silicosis model; applying equal-volume normal saline to the control group; respectively observing for 28 days, 56 days and 112 days, taking mouse lung tissues for pathological analysis and fibrosis index detection, and evaluating the model preparation effect. The method is simple to operate and low in cost, and the established coal silica dust mouse model is stable, efficient, repeatable and noninvasive.

The utility model discloses an antistatic polyester mixed conductive fiber dedusting filter bag, which relates to the technical field of dedusting filter bags, and comprises a filter bag body, the top end of the filter bag body is fixedly connected with a lantern ring, the outer wall of the lantern ring is provided with an outer groove, the inner wall of the lantern ring is movably connected with a spring ring, the inner wall of the spring ring is provided with an inner groove, and the inner groove is communicated with the inner groove. An inner groove is formed in the filter bag body, four arc strips are arranged in the inner groove, a framework is embedded in the filter bag body, a conductive fiber layer is fixedly connected to the outer wall of the filter bag body, and a movable strip is arranged outside the conductive fiber layer. By arranging a series of structures, the probability that the spring ring is too loose or too tight and is not installed in place is reduced, so that the adverse effect on the filtering effect of the filter bag is reduced, the area of the surface of the filter bag for adsorbing dust through static electricity is reduced, and the probability that the dust is adsorbed on the surface of the filter bag is reduced; therefore, the difficulty in cleaning dust on the outer surface of the filter bag is reduced.

The invention discloses a preparation method of dust for testing the dynamic filtering performance of a filter material. The method comprises the following steps: firstly, freeze-drying high-purity pseudo-boehmite (99.9% grade) at the temperature of 40 DEG C below zero to 15 DEG C below zero; performing graded grinding by adopting a planetary ball mill to obtain powder with three characteristic particle size distributions (D / D / D); a linear weighted proportioning model (target powder = a * D + b * D + c * D) is constructed based on an Excel VBA program, and + / -5% error control of measured data of mixed dust D, D and D and target working conditions (cement / thermal power / steel plant) is realized through nonlinear programming operation; finally, a V-shaped mixer is adopted for mixing for 20-40 min under the charging amount of 40%-60%, and the uniformity CV is smaller than or equal to 5%. The pore volume (0.3-0.8 cm / g), the particle density (2.3-2.8 g / cm) and the particle size distribution of the obtained dust for testing are similar to those of real industrial dust, a high-fidelity simulation environment can be provided for dynamic filtering performance testing of a filter material of a bag type dust collector, and the accuracy of dynamic dust removal efficiency evaluation of the filter material is remarkably improved.

The utility model relates to the technical field of exhaust device, and disclose a kind of exhaust device for agricultural machinery triangular belt oven. Including oven, the oven top surface is equipped with exhaust port, the exhaust port below is provided with air door, the oven is detachably installed with first air pipe by first bolt, the other end of the first air pipe is detachably installed with filter screen by second bolt, the other side of the filter screen is detachably installed with second air pipe, the side of the second air pipe away from filter screen is fixedly connected with centrifugal fan, the end of the centrifugal fan is provided with air outlet, by setting first bolt and second bolt, so that air pipe can be disassembled at any time to clean and maintain, by setting filter screen with a plurality of filter holes, the mixed dust and particulate matter in exhaust gas are prevented from entering fan, causing fan wear, prolonging the service life of the equipment, ensuring production efficiency and stability.

The application relates to the field of safety equipment for producing pyrotechnics, and discloses an intrinsic safety type sweeping equipment suitable for a high-risk scene of producing pyrotechnics, which comprises an intrinsic safety type structure assembly, a gas-liquid mixed dust catching assembly, a multi-stage separation and filtering assembly and a circulating water purification assembly which are integrally arranged with the intrinsic safety type structure assembly, and is further provided with a real-time risk monitoring system, an explosion-proof device and a telescopic flexible dust collecting device. The gas-liquid mixed dust catching assembly realizes frictionless dust catching, the multi-stage separation and filtering assembly realizes gas-liquid separation, the circulating water purification assembly realizes closed-loop water circulation, the monitoring system realizes real-time parameter acquisition and threshold value early warning, the explosion-proof device realizes linkage cooling and explosion suppression, and the flexible dust collecting device is extended to a high place and a complex area for cleaning. The application realizes intrinsic safety of the equipment, realizes automatic cleaning of energetic powders, greatly reduces the labor intensity, realizes omnibearing and dead angle-free cleaning of a production area, and is completely suitable for the high-risk scene of producing pyrotechnics.

The invention discloses an asphalt concrete mixing plant with a circulating intermittent dust removal function, and particularly relates to the technical field of asphalt concrete mixing, the equipment comprises an asphalt concrete mixing processing table, a cleaning mechanism used for treating dust is arranged at the bottom of a dust remover, and the dust remover is arranged in the asphalt concrete mixing processing table through the cleaning mechanism. When dust in the dust remover needs to be cleaned, a first driving motor is started to drive a first connecting rod to rotate, two sets of scraping plates can move inwards at the same time through rotation of a threaded rod, the dust in the dust remover can be cleaned into a collecting box through a dust outlet pipe through inward movement of the scraping plates, and a water pipe is connected with a water inlet, so that the dust in the dust remover can be conveniently cleaned. The water pump is started to convey water into the connecting pipe from the water inlet, water is sprayed through the spray head, and meanwhile, the stirring rod rotates, so that the water and the dust can be mixed together, the mixed dust can be discharged through the water outlet, and the situation that the dust is accumulated in the dust remover, and the subsequent dust removal effect is affected is avoided.

The utility model discloses an antistatic polyester mixed conductive fiber dust removal filter bag, including dust removal filter bag body and mounting plate, the surface of dust removal filter bag body is fixedly equipped with mounting ring, the top of mounting ring is equipped with spacing groove, the top of mounting plate is equipped with mounting groove through, the inside of mounting plate is equipped with sliding component, and the sliding component is equipped with the spacing groove through the spacing groove. A fixing plate is arranged at the top of the mounting plate through a sliding assembly, a spring is fixedly mounted at the bottom of the fixing plate, a moving block is arranged at the bottom end of the spring, an auxiliary assembly is arranged at the top of the moving block, a limiting block is fixedly mounted at the bottom of the moving block, and a flapping assembly is arranged in the mounting plate. According to the dust removal filter bag disclosed by the invention, the dust removal filter bag body is prevented from being disassembled and assembled by adopting a bolt mode, so that the dust removal filter bag body can be disassembled and assembled more conveniently, the time required for disassembling and assembling is shortened, and the maintenance efficiency of the filter bag is improved.

The utility model relates to gas recovery technical field discloses a kind of coal mine gas extraction gas purification and recovery equipment, including high-pressure delivery pump, suction pipe, gas pipe, purification tank, mixing mechanism, drying shell, separation tank, gas storage tank, support plate and zeolite molecular sieve membrane, suction end of high-pressure delivery pump is connected with suction pipe, the gas outlet end of high-pressure delivery pump is connected with gas pipe, gas pipe is inserted to the inside bottom end of purification tank, the left side of drying shell is equipped with the first conduit connected with purification tank, the right side of drying shell is equipped with the second conduit connected with separation tank, separation tank is fixed with support plate, the front side of support plate is fixed with zeolite molecular sieve membrane, the left side of gas storage tank is equipped with the air inlet pipe connected with separation tank, second valve is installed on air inlet pipe.The utility model is convenient to gas extraction storage, and can remove mixed dust, sulfur dioxide, carbon dioxide, nitrogen dioxide and other impurities in gas, so that gas purity is higher.

The utility model relates to the technical field of finished product screen dust removal, and discloses a finished product screen dust removal automatic control system which comprises a dust removal box, a vertical frame is fixedly connected to the surface of the dust removal box, a collecting hopper is fixedly connected to the bottom end of the dust removal box, and a discharging opening is fixedly formed in the bottom end of the collecting hopper. And the surface of the dust removal box is fixedly connected with an input interface. The input connector is connected with the discharging end of the finished product screen, gas can be mixed with dust to be discharged into the dust removal box, the dust can be filtered by the filter bag, and the remaining clean gas can penetrate through the filter bag and penetrate through the partition plate, so that the clean gas is discharged into the inner top of the dust removal box, and the dust removal efficiency is improved. The concentration meter can measure the concentration of filtered clean gas in the dust removal box, after the concentration reaches the standard, the fan is started to form negative pressure above the partition plate, so that the clean gas is discharged from the fan, and meanwhile, the rotating speed of the fan can be adjusted through the speedometer, so that the discharge rate of the clean gas can be adjusted.

The invention discloses a multi-stage wet dust removal process. In the field of particleboard production, a space for spraying water mist and water splash is formed below the spray pipe system. After the tail smoke is discharged into the dust removal tower through the smoke inlet, the tail smoke upwardly offsets the water mist and / or the water splash. The water-mixed dust particles settle based on their own weight and / or are knocked down by the water splash. The space filled with water mist and water splash simultaneously improves the water mixing rate and sedimentation rate of the dust particles. Then, electrostatic dust removal is performed in the mist-filled space. The dust particles in the moist dust space are quickly and fully electrified, further improving the dust removal rate. The upward direction of the exhaust gas after electrostatic dust removal intersects with the airflow direction of multiple horizontal air pipes. The airflow of the horizontal air pipes is suitable for heat exchange with the exhaust gas. The exhaust gas is condensed and dusted before being discharged. The dust removal rate is improved while avoiding the derivation of mist flow from the top exhaust chimney.

The utility model relates to the technical field of brake disc grinding, in particular to a brake disc grinding positioning device which comprises a machine frame, a grinding machine body and a positioning clamp and further comprises a dust collection assembly which comprises a supporting frame, a dust collection cover, a guide-in pipe, a dust collection water tank, a purification water tank, a connecting pipe, an activated carbon block, a guide-out pipeline, an atomization nozzle, a suction fan and an output component. And dust in air mixed with dust generated by polishing of the polishing machine body can be adsorbed and cleaned through water in the dust collection water tank and atomized water sprayed out of the atomization spray head, and the situation that the surrounding machining environment is affected by flying dust is avoided.

The utility model discloses a crushing device for circuit board recovery, which comprises a crushing box, a dust purification device is fixedly mounted at the top end of the crushing box, a circuit board crushing device is mounted in the upper part of the crushing box, and a powder conveying device is mounted in the lower part of the crushing box. By installing the dust purification device, when waste circuit boards enter the crushing box through the feeding plate, a large amount of dust is raised, the raised dust is sucked in through the suction fan, the dust can be filtered through the arranged filter screen, mixed dust particles are reduced, the filtered dust particles are collected in the collecting frame, and therefore the dust purification effect is improved. According to the circuit board crushing device, the dust can be regularly pumped out to be cleaned, so that air in the crushing box is relieved, a large amount of dust cannot be accompanied when discharged circuit board powder is discharged, recycling is facilitated, the surrounding air quality is improved, in addition, the filter screen can be pumped out to be replaced or cleaned, and the circuit board powder can be continuously conveyed out from the discharging pipe through conveying; and manual recovery is not needed.

The utility model belongs to the technical field of crushing machinery, and particularly relates to a vertical shaft crusher. The top end of the crusher shell is communicated with the negative pressure air pipe, the outlet of the negative pressure air pipe is connected with the air inlet of the fine sand separator, the air outlet of the fine sand separator is connected with the dust remover, and the bottom end of the fine sand separator is provided with the discharging port. After dust is subjected to powder separation through the fine sand separator, fine sand is mixed with materials at a discharging port of the crusher, the dust enters the dust remover, the fine sand in the dust is separated and recycled, the content of the fine sand in finished sand is guaranteed, crushing, dust removal and powder separation are conducted synchronously, and the crushed materials can directly enter a follow-up vibrating screen to be screened; in addition, the fine sand separator for powder selection and the dust removal structure are arranged together, a power source does not need to be independently provided for each stage, and power is greatly saved.

The invention provides a triggering type protein foam dust fixing method and equipment for coal mine heading face dust. The equipment comprises a liquid storage tank, a conveying pump and an atomizing nozzle, and an aqueous solution containing amphiphilic protein molecules is prepared; filling the aqueous solution into a liquid storage tank; a conveying pump is started to pump the aqueous solution into an atomizing nozzle, then the aqueous solution is sprayed into a generating chamber to form liquid drops, and dust-containing airflow enters the generating chamber from an air inlet; the dust and the liquid drops enter the mixing area to be mixed, the dust makes contact with the liquid drops, conformational change occurs, and amphiphilic protein molecules spontaneously migrate to a gas-liquid interface of the liquid drops; and the dust and the liquid drops enter a forming cavity, a plurality of amphiphilic protein molecules form a bubble structure to wrap the dust, and finally the protein-based aerogel foam for permanently fixing the dust is generated. According to the invention, liquid drops of an aqueous solution can be foamed only after being in contact with dust, the stability is good, the generated foam is good in durability, in-situ permanent fixed sealing of the dust is realized, and secondary dissipation of the dust is effectively prevented.

The utility model relates to the technical field of calcium carbide furnace paste adding equipment, in particular to an automatic calcium carbide furnace paste adding device which comprises a frame body, a conveying belt is arranged in the frame body, a motor is arranged on the left side of the frame body, and a hopper is arranged on the right side of the frame body and above the conveying starting end of the conveying belt. Multiple partition plates distributed at equal intervals are arranged on the conveying end face of the conveying belt. A plurality of supporting legs are arranged on the two sides of the frame body, the supporting legs located on the same side of the frame body are connected with horizontally-arranged supporting rods, a collecting frame is arranged on the supporting rods on the two sides of the frame body in a sliding mode, a material guiding plate which is obliquely arranged downwards from left to right is arranged at the lower end of the left side of the frame body, and the lower end of the material guiding plate faces the collecting frame. And the right end of the material guide plate is arranged above the collecting frame, so that the problem that the falling electrode paste is mixed with dust on the ground and is difficult to recycle due to the lack of a corresponding collecting device because the electrode paste is extremely easy to fall off due to the gravity of the electrode paste in the conveying process along with the conveying belt at the lower end is solved.

The utility model discloses a wet type polishing, grinding and dust collecting all-in-one machine with an anti-explosion swirling flow type structure, which comprises a rack, a cyclone mechanism and a spraying mechanism, the rack is provided with a grinding cavity and a dirt collecting cavity, the cyclone mechanism is provided with an exhaust fan, a cyclone cavity and a cyclone wheel, the spraying mechanism is provided with a cyclone spraying pipe and an upper spraying pipe, a dust receiving frame is arranged in the grinding cavity, and the dust receiving frame is provided with a dust outlet. The exhaust fan enables air in the polishing cavity to flow into the cyclone cavity, the cyclone wheel forms rotating airflow in the cyclone cavity, the cyclone spraying pipe sprays water in the cyclone cavity, and the upper spraying pipe sprays water in the polishing cavity. The grinding cavity, the dirt collecting cavity, the cyclone mechanism and the spraying mechanism are arranged on the rack, large-particle dust is collected in the dust receiving frame, part of small-particle flying dust is mixed with water and then enters the cyclone cavity, part of the small-particle flying dust directly enters the cyclone cavity, and a water-powder mixture enters the cyclone cavity and then flows into the dirt collecting cavity; dust is mixed with water after entering the cyclone cavity and is driven by the cyclone wheel to rotate and rise to be mixed with water, dust is recycled in a multi-stage combined mode, the dust removal effect is good, and efficiency is high.

The invention discloses a workpiece preparation method, relates to the technical field of composite materials, and is used for solving the technical problems that waste chips generated during negative pressure adsorption or brush cleaning in the workpiece preparation process are easily wound on the inner wall of a suction pipe, and a large amount of residual waste chips exist. The method comprises the following steps: step 1, injecting a resin glue solution into a mold in which a fiber prefabricated part is preset, and curing to form a composite material part blank; 2, precisely cutting the composite material blank to form a composite material workpiece; and 3, collecting and separating mixed dust containing the resin and the fiber scraps by the cleaning equipment. According to the waste chip separating device, waste chips can be separated, and few waste chips are left.

The invention provides a coal transportation dust suppressant liquid preparation and spraying system, the coal transportation dust suppressant liquid preparation and spraying system comprises a liquid preparation assembly, a liquid storage assembly and a spraying assembly, the liquid preparation assembly comprises a plurality of mixing tanks, one mixing tank is used for adding at least one additive for preparing a dust suppressant, and the spraying assembly is used for spraying the dust suppressant. The mixing tanks are connected with the liquid storage assembly and used for storing the mixed dust suppressant discharged by the liquid preparation assembly, the spraying assembly is connected with the liquid storage assembly and comprises a spraying part, and the spraying part is arranged towards coal transportation equipment and used for spraying the dust suppressant to the coal transportation equipment. According to the coal transportation dust suppressant liquid preparation spraying system, the dust suppression efficiency is improved, and environmental damage and resource waste are reduced.

The invention discloses a forming device and method for master batch production, the forming device comprises a mixing bin, a recycling mechanism is arranged at the position, close to the top, of the mixing bin, and various mixed dust raw materials in the mixing bin are separated, classified and recycled so as to be reused; a first motor is arranged at the bottom of the mixing bin, stirring is performed through stirring teeth connected with the first motor, and a heater is arranged at the bottom of the mixing bin to heat the mixing bin; an image processing module of the dust raw material particle size detection system is used for processing an image in an air guide pipe, and raw material dust is rapidly separated and is convenient to recycle; excessive gas in the screw cylinder can be quickly discharged through the degassing mechanism arranged below the screw cylinder, so that the influence of the gas in the screw cylinder on the master batch is reduced, and the size uniformity of the master batch is improved; and by arranging the shearing mechanism, the cutter is rapidly cooled, the cutter is prevented from being heated to adhere to and pull master batches, and the situation that the master batches are not uniform in length is effectively reduced.

The utility model belongs to the field of cloth bag dust removal, and particularly relates to a cement fly ash double-storage tank integrated with cloth bag dust removal, which comprises a box body, a plurality of cloth bag barrels are arranged in the box body in a rectangular array mode and are communicated with one another, an air inlet pipe is arranged on the side face of the box body and penetrates through the interior to be communicated with the cloth bag barrels, an air outlet pipe is arranged on the other side face of the box body, a fan is arranged on the surface of the box body, and the output end of the fan is connected with a guide pipe; one side of the transverse pipe is connected with a plurality of connecting pipes at equal intervals in a penetrating manner, and the connecting pipes penetrate through the interior of the box body and are communicated with the cloth bag cylinders; and through collaborative design of a vibration box and a filter screen of the separation assembly, the efficient separation function of cement powder and coal ash is achieved. The vibrating motor drives the inclined vibrating box to vibrate, coal ash is retained on the surface of the vibrating box and discharged through the guide groove in combination with the aperture difference of the filter screen, cement powder penetrates through the filter screen and falls into the bottom of the auxiliary box, the problem that mixed dust of traditional dust removal equipment cannot be classified is solved, and the separation efficiency is improved.

The utility model relates to the technical field of zinc slag treatment, and discloses a zinc slag treatment production line dust treatment device which comprises a ball milling assembly, a collecting assembly is fixedly installed on one side of the outer wall of a supporting leg in a threaded mode, and a shielding assembly is magnetically connected to one side of the upper end of the outer wall of the ball milling assembly. As the sealing door is opened, dust attached to the inner wall of the sealing door can fall into the inner cavity of the built-in groove along with the opening of the sealing door, as the water source is placed at the bottom of the inner cavity of the built-in groove, the dust is mixed into the water source, and by means of the arrangement, the dust is collected by the built-in groove, and meanwhile the dust is prevented from falling into the inner cavity of the built-in groove. And meanwhile, when the dust in the inner cavity of the built-in groove needs to be treated, the threaded long rod is taken out from one end of the supporting leg by loosening the nut, and the water source accumulated in the inner cavity of the built-in groove can be discharged together with the dust after the water outlet is opened, so that the dust removal device is convenient to use.

The invention discloses an energetic material production route and production process based on a gas-liquid dual-circulation system, and belongs to the technical field of energetic material production. The production system is used for forming and processing energetic materials, and the carrier gas conveying system provides carrier gas power for the production system; solvent-rich mixed gas discharged by the production system is subjected to graded dust removal through the dry-wet mixed dust removal system, large-particle dust and part of solvent steam are removed through wet condensation dust removal, fine dust is further filtered through the dry filter dust remover, output solvent carrier gas enters the solvent recovery system to be subjected to condensation and adsorption treatment, and the solvent-rich mixed gas is discharged through the dry-wet mixed dust removal system. The efficient recovery of the solvent is realized. The recovered regenerated carrier gas is re-introduced into the carrier gas conveying system to form single-input and multi-cycle closed flow, and through gas-liquid double-cycle cooperative operation, the synchronous recovery and cyclic utilization of the carrier gas and the solvent are realized, the energy consumption and the material loss are obviously reduced, and the benefits of the energetic material production process are improved.

The present invention provides a gel-foam-water mist joint control and cleaning equipment for dust generation in the open-pit excavator stage, which includes three modules: combined dust monitoring, preparation of mixed dust removal base liquid, and multi-stage dynamic dust removal. Laser and magnetic induction are used to monitor the dust concentration around the excavator bucket, and the monitoring station is placed in front of the cab. The mixed dust removal base liquid is mainly prepared by a three-tank variable pressure liquid reservoir and a hollow liquid feeding stirring foamer, and the base liquid is used as a carrier to perform foam covering and dust suppression near the bucket and gel penetration and dust suppression. Independent dust removal response modes are designed for the high-frequency actions of digging, lifting, transporting, and falling in the excavator's mining and loading operations, which are pre-wetting dust reduction, multi-point water mist dust removal, directional covering dust suppression, and continuous atomization dust reduction. The dust removal nozzles are divided into Group A M-shaped foaming nozzles and Group B rotary atomizing nozzles, which remove dust inside and around the excavator bucket by foam covering, gel penetration, and droplet purification, respectively.

The invention relates to an abrasive dust collection and dust removal device, in particular to an abrasive dust collection and dust removal device for brake pad machining. A mounting rack is arranged on the front side of the frame body; the protective cover shell is arranged on the frame body and is used for sealing the top and the rear part of the frame body; and the two dust and chip flow dividing pieces are installed on the frame body and comprise the first dust and chip flow dividing piece and the second dust and chip flow dividing piece, and the first dust and chip flow dividing piece and the second dust and chip flow dividing piece are connected through a middle connecting pipe and communicate with each other. Coarse and fine particles are subjected to inertial grading separation through the dust and scrap flow dividing pieces, scraps are efficiently settled and collected through a zigzag channel in the dust removal settling box, meanwhile, a negative pressure circulating system is formed in the dust removal settling box and the double dust and scrap flow dividing pieces through the closed-loop backflow pipe, and mixed scrap airflow is subjected to multiple times of superposition treatment in the settling channel; and finally, purified airflow is directionally discharged through a confluence outlet pipe, so that the industrial requirements of dust resource recycling, standard purification of fine particles and low-cost continuous operation are met.

The present invention relates to the technical field of reduced iron powder processing, and specifically to a dust removal structure for magnetic separation treatment of reduced iron powder, including: a dust removal box, a second guiding plate is fixedly connected inside the dust removal box, and a sealing extension mechanism and a filtering mechanism are arranged on one side of the dust removal box. Through the setting of the screening magnetic separation mechanism, the linkage effect of the first transmission belt and the second transmission belt drives the magnetic rollers on the five third rotating shafts to rotate synchronously. The multiple groups of magnetic rollers cooperate with the screening plate to achieve multi-level magnetic separation of iron powder, and can accurately adsorb the magnetic iron powder in the mixed dust. The connecting rod fixed by the fixed shaft drives the scraper to closely adhere to the surface of the magnetic roller, and can clean the iron powder adsorbed by the magnetic roller in real time, avoiding the accumulation of iron powder from affecting the magnetic separation effect. The cleaned iron powder is centrally recovered through the iron powder blanking plate, and the separated dust is discharged through the second guiding plate to the dust discharge plate, realizing the efficient diversion of iron powder and dust.