32results about How to "Suppress flying" patented technology

The invention relates to the technical field of automatic dust removal equipment, and discloses safe-filtering electrical automatic dust removal equipment which comprises a main body, a partition plate is fixedly connected to the interior of the main body, an adsorption pump is fixedly connected to the top of the partition plate, an outlet bin is fixedly connected to the bottom of the main body, and a rotating ring is arranged at the end, away from the adsorption pump, of the partition plate; the end, close to the adsorption pump, of the connecting disc is in bolted connection with the partition plate. The spiral structure in the arc-shaped vertebral plate can guide gas sprayed out through the hollow ring, so that the gas flows in a downward spiral flowing mode when being sprayed out, and dust on the surface of the filter layer is sprayed downwards to be cleaned; the dust collector has the advantages that stronger impact force and downward traction force can be generated on dust on the surface of the dust collector, so that the dust is more effectively cleaned, the dust is prevented from being accumulated on the surface of the dust collector, and a filtering layer is prevented from being blocked.

The invention discloses a hydrogel dust suppressant for coal storage and transportation as well as a preparation method and application thereof, and belongs to the technical field of dust suppression. The hydrogel dust suppressant for coal storage and transportation comprises the following components in parts by mass: 1-20 parts of a film-forming agent, 0.5-5 parts of a film-forming auxiliary agent, 0.5-15 parts of a thickening agent, 100-300 parts of a functional monomer, 20-50 parts of a neutralizing agent, 0.5-5 parts of a cross-linking agent, 0.5-5 parts of an initiator and 3-30 parts of a surfactant. The prepared hydrogel dust suppressant for coal storage and transportation has excellent film-forming property and cohesiveness, and dust flying in the coal transportation process is effectively inhibited. In addition, the prepared dust suppressant for coal storage and transportation is low in synthesis cost, the dilution multiple reaches up to 500 times, the transportation cost is greatly saved, the synthesis process is simple, the yield is high, and the dust suppressant is suitable for industrial production.

The utility model relates to the technical field of tenoning machines, and discloses a double-end tenoning machine convenient for waste cleaning, which comprises an equipment base, a fixed plate fixedly connected to the surface of the equipment base, the other end of a movable shaft bracket is connected with a movable shaft center, the outer side of the movable shaft center is fixedly connected with one end of a connecting rod, and the other end of the connecting rod is connected with a bearing shaft center; one end of the moving shaft bracket is connected with the shaft rod through the second axis, and the other end of the moving shaft bracket is connected with the connecting rod through the movable axis. According to the utility model, through synchronous operation of the vibration cleaning mechanism and tenoning processing, waste materials are cleaned while processing is carried out, the machine does not need to be shut down for manual cleaning, the production interruption time is greatly reduced, and the overall processing efficiency is improved; and through the linkage design of the cleaning plate and the cleaning and collecting bin, wood chips and crushed materials generated by cutting are pushed into the closed collecting bin in real time, and flying of the wood chips is effectively restrained.

The utility model discloses a road crack pouring device, belongs to the technical field of road crack pouring, and solves the problems that dust flies and the cleaning effect is poor when an existing crack pouring mechanism is used for blowing and cleaning cracks. The blowing mechanism comprises an air pump, a dust cover and a filter box, the air pump is connected with an air inlet pipe and an air outlet pipe, the end part of the air outlet pipe is provided with a spray head, the spray head is positioned in the dust cover, a partition plate is arranged in the filter box, and the filter box is divided into a first chamber and a second chamber by the partition plate; a through hole is formed in the partition plate, a first dustproof net is installed in the through hole, the dustproof cover communicates with the first cavity, an air inlet hole is formed in the dustproof cover, a second dustproof net is installed on the air inlet hole, and the air inlet pipe communicates with the second cavity. The dust cover is arranged outside the spray head of the air outlet pipe of the air pump, dust generated by blowing operation is prevented from flying, air mixed with the dust in the dust cover is sucked into the filter box, and dust collection is achieved.

This utility model discloses a deburring and dust removal device for conductors of wires and cables, including an adjusting mechanism and a guide wheel wire guide frame. The adjusting mechanism and the guide wheel wire guide frame are arranged opposite each other. A servo motor is symmetrically arranged on the adjusting mechanism, and a circular soft brush is arranged on the output shaft of the servo motor. The front end of the dust collection box is located below the circular soft brush. The controller is fixedly installed on the adjusting mechanism, and a speed sensor is installed on the top of the guide wheel wire guide frame. The speed sensor and the servo motor are respectively electrically connected to the controller. The speed sensor monitors the conductor's travel speed in real time and feeds back the conductor's travel speed signal to the controller. The controller adjusts the running speed of the servo motor on the circular soft brush in real time according to the conductor's travel speed signal. The aim is to adjust the position of the deburring element through a flexible sliding rail system to ensure good contact with the cable conductor, while equipped with a high-efficiency dust collection system to improve the working environment and increase production efficiency and product quality.

The utility model discloses a handheld cutting machine is with dustproof structure belongs to cutting machine technical field, and its technical scheme main points include cutting machine body, the outside of cutting machine body is provided with the shell, the outside of shell is provided with water spraying subassembly, the right side of shell is provided with dust absorption subassembly, water spraying subassembly includes the support plate fixed connection in the shell outside, the outside fixed connection of support plate has micro motor, can solve the current handheld cutting machine is with dustproof structure inconvenient according to cutting working condition real -time adjustment water spraying position and range to cause dust cover not comprehensive, and there is blind angle, influence dust suppression effect, and the current dust absorption structure often lacks multistage dust separation purification design, inconvenient to the efficient processing of different particle size dust to cause big granule dust accumulation block, fine dust excretion, influence equipment operation stability and working environment quality problem.

The invention relates to the field of peanut protein powder feeding, in particular to a peanut protein powder feeding device capable of preventing powder from flying, which comprises a support table, and a feeding pipe is obliquely mounted above the support table. The handle is rotated to drive the rotating frame to rotate, so that the opening degree of the baffle is controlled to accurately adjust the feeding amount. In the process, the rotating frame synchronously drives the material guiding plate, the first dust blocking plate and the second dust blocking plate to cooperatively act through the connecting arm, and dynamic matching of the dust suppression structure and the discharging state is achieved. The inclination angle of the material guide plate is automatically adjusted according to the feeding amount, material impact is effectively relieved, and powder flying is restrained from the source; the dust blocking plate set is adjusted in a self-adaptive mode according to the angle of the material guiding plate, so that a reasonable distance between the air suction cover and falling materials is kept, and meanwhile diffused dust is efficiently collected. According to the linkage system, while the feeding efficiency is guaranteed, dust diffusion is remarkably reduced, the working environment is improved, raw material waste is reduced, and operation safety and overall coordination are improved.

This utility model belongs to the technical field of auxiliary equipment for construction projects, and relates to a waste crushing device for construction projects. It includes an upper drying oven detachably mounted on a lower crushing box. The inner cavity of the upper drying oven is connected to the lower crushing box via opposing feed plates. A water tank is located at the bottom of the inner cavity of the lower crushing box, and a return feed filter plate is located above the water tank. The two feed plates and the side wall of the upper drying oven form a first cavity and a second cavity. A screw sealing component is installed in the first cavity, and a cooling spray assembly is installed in the second cavity. This utility model uses the upper drying oven to buffer and heat the sand and gravel waste, and then uses the cooling spray assembly to rapidly cool the sand and gravel in the lower crushing box. The synergistic effect of heating and cooling reduces the hardness of the sand and gravel, making it easier to crush. The water used in the cooling spray process can flow back to the water tank, reducing water waste. Furthermore, the sprayed water mist can fully contact the dust, causing the dust to settle quickly, thereby effectively reducing the dust concentration during the crushing process.

The present invention provides a dust removal and dust suppression device for a primary crushing station in an open-pit mine, and the problem to be solved is: how to provide low-cost dust pollution in the unloading hopper of the primary crushing station in an open-pit mine. The key points of the present invention are: it is composed of a bucket dust suppression cover and a self-circulating dust suppression chute; the bucket dust suppression cover is a rectangular parallelepiped frame composed of steel profiles as the skeleton of the bucket dust suppression cover, a belt door curtain is installed on one vertical surface of the skeleton as the entrance and exit of the dump truck, and a plastic film is installed on the remaining three vertical surfaces and the top surface as the cover wall and ceiling, and the internal volume of the bucket dust suppression cover is limited to being able to accommodate the dump truck in the unloading state; the self-circulating dust suppression chute is composed of a tubular chute and an airflow return pipe to form a loop, so that the feed port of the chute is set on the bottom surface of the cover inside the bottom beam, and is covered by the bucket dust suppression cover inside. The positive effect of the present invention is: it effectively suppresses the flying dust generated when unloading in the unloading pit of the primary crushing station in the open-pit mine. This method significantly reduces the energy consumption of previous dust removal methods.

The invention discloses aluminum oxide ceramic cutting equipment, which relates to the technical field of oxidized ceramic cutting and comprises a rack, a material placing table, a material fixing device and a cutting device. The liquid spraying device is novel and reasonable in structure, the liquid spraying pipe is arranged on the cutting machine head, liquid can be sprayed to a material cutting face and a cutter in the cutting process so as to cool and lubricate the contact face of the cutter and the material, cutter abrasion can be reduced while the cutting efficiency can be improved, the cutter and the cutting face can be cooled, and the cutting efficiency is improved. The influence of high temperature on the cutter and a cutting surface is avoided, so that the cutting quality is improved; in addition, flying of dust formed by cutting can be restrained, and a safe and dust-free cutting environment is provided. In addition, the table top of the material placing table is provided with a plurality of storage grooves which are distributed in parallel, so that the aluminum oxide ceramic tubes can be cut in batches at a time, and the cutting production efficiency of the aluminum oxide ceramic tubes can be improved.

The invention relates to the technical field of crushing, in particular to recycling and crushing equipment for packaging carton processing, which comprises a treatment box, the top of the treatment box is fixedly connected with a crushing shell, the interior of the crushing shell is rotatably connected with a crushing roller, the top of the crushing shell is fixedly connected with a feeding hopper, and the outer side of the treatment box is fixedly connected with a discharging pipe; and the spraying device is used for carrying out humidification treatment on the crushed cartons, and the spraying device is arranged to carry out uniform humidification treatment on the crushed cartons. The flexibility of carton fragments can be improved, crushing and flying in the follow-up treatment process are reduced, the recovery treatment efficiency and quality are improved, meanwhile, a large amount of dust can be generated in the carton crushing process, and the dust can pollute the environment and can harm the health of operators. Dust particles can be attached to fragments of the carton through water spraying humidification, so that dust flying is effectively restrained, and the working environment is improved.

The invention provides a dust falling device applied to a pebble coal cinder bin. The dust falling device comprises a water spraying pipeline and nozzles. The water spraying pipeline is annular, a slag discharging opening of a slag discharging pipeline of the pebble coal slag bin is located on the inner side of the lower portion of the water spraying pipeline, and a preset distance is formed between the slag discharging opening and the water spraying pipeline; the multiple nozzles are arranged on the lower side of the water spraying pipeline at intervals in the circumferential direction of the water spraying pipeline. Water sprayed by all the nozzles surrounds the slag discharging opening to form water mist which is sprayed downwards, and the water mist is mixed with flying dust in the slag discharging process. The water mist spraying device has the technical effects that water mist can be uniformly sprayed to dust points, dust flying is effectively inhibited, and the dust flying problem in the slag discharging process can be directly solved from the source.

The utility model relates to the technical field of emulsion explosive production, in particular to an emulsion explosive production device with a dust suppression function, which comprises a device box, the top of the device box movably abuts against the bottom of a storage part, and the bottom of the storage part movably abuts against the top of a production part. The bottom of the production piece movably abuts against the inner bottom wall of the device box, water is pumped out of a water tank through a water pumping pipe through a water suction pump and enters a water spraying pipe through a water outlet pipe after being pressurized, the water spraying pipe sprays the water into the box body in a mist spraying mode, and the water can be evenly distributed in a fine mist drop mode through the water spraying pipe. Water flow containing dust can enter the dust accumulation block along with the guide block to be collected, the filter block is arranged in the backflow pipe, the water flow containing dust passes through the backflow pipe and the filter block to filter dust particles in a mixture, clean water can flow back to the water tank through the backflow pipe, and the dust suppression effect can be effectively achieved.

The application provides a powder filling device, and belongs to the technical field of filling. The device comprises a storage tank, a discharge pipe coaxially communicated with the bottom of the storage tank, a discharge screw coaxially and rotationally matched with the storage tank, a feed inlet arranged at the top of the storage tank, a material blocking mechanism, two rotating rods and a rotating ring, the middle part of the two rotating rods is rotationally connected to the rotating ring, the lower end of the rotating rod is provided with a baffle, the bottom of the baffle is provided with a scraping piece, the upper end of the baffle is provided with a matching plate, the rotating connection part of the rotating rod is provided with a torsional spring, a matching ring is slidably arranged on a vertical supporting rod, a first spring is sleeved on the supporting rod, the rotating connection part of the rotating rod is located in the matching ring, the matching plate is located above the matching ring, and the elastic coefficient of the torsional spring is greater than that of the first spring. A conveying mechanism is arranged below the storage tank, a driving part is used for driving the storage tank to move and the rotating ring to rotate, two sets of locking mechanisms are arranged on the rotating ring, and the filling device effectively solves the leakage problem and has high filling weight accuracy.

This invention relates to the field of thin stone processing technology and discloses a high-efficiency cutting device for thin stone processing, including a processing frame. A cutting mechanism is provided on the top of the processing frame, and a fixing mechanism is provided on the top of the cutting mechanism. A recycling frame is fixedly connected to the top inner side of the processing frame, and a drainage frame is fixedly connected to the right side of the recycling frame. A cooling mechanism is provided inside the recycling frame. The cutting mechanism includes a cutting component and a water spraying component. The cutting component is located on the top of the processing frame, and the water spraying component is located on top of the cutting component. In use, when it is necessary to cut thin stone, the part to be cut is first placed on the top of the placement frame. The placement frame is located at the bottom of the cutting disc and does not overlap with the position of the cutting disc. Multiple sets of cutting discs are symmetrically distributed around the rotating shaft, which can realize multi-pass synchronous cutting of stone, greatly reducing the number of cuttings and improving processing efficiency.

The utility model provides a kind of vehicle-mounted mobile road core sampling device, it is related to core sampling device technical field, including slide rail assembly, sliding seat plate, lifting assembly and rotary core component;Sliding seat plate bottom is slidably arranged on vehicle body by slide rail assembly, and sliding seat plate is equipped with lifting platform, two lifting barrels and two fixed guide rods, and one lifting support is equipped in each lifting barrel.The beneficial effects of the utility model are that sliding seat plate can slide out from vehicle body after moving to specified position, and lifting support can support and fix sliding seat plate;Rotary core component can drive core sampling barrel to rotate, and lifting assembly drives sliding seat plate to lift, to exert downward pressure on core sampling barrel, so that core sampling barrel drills sample on road surface, the core sampling device has the advantages of convenient movement and quick deployment, and the device is simple to operate, can save traditional equipment handling and assembly time, can be operated by a single person, greatly reduces the labor cost of road core sampling.

The utility model relates to the technical field of drilling devices, in particular to a drilling device for mine engineering supervision blasting, and aims to solve the technical problems that during blasting, holes need to be drilled in advance and then explosives need to be arranged, however, most of the drilling devices for mine blasting are poor in positioning capacity, the specific positions of the devices are often not determined during use, and the working efficiency is high. A project supervisor is difficult to confirm whether a construction party strictly measures the position and then performs punching and blasting, so that the management of the project supervisor is inconvenient; according to the technical scheme, the drilling device for mine engineering supervision blasting comprises a supporting assembly, a positioning assembly, a moving assembly, a rotating assembly, a drill bit assembly and a water spraying assembly; compared with a traditional drilling device for mine blasting which is poor in positioning capacity and not beneficial for a supervisor to supervise the drilling position, the drilling device has the advantages that by adding the positioning function, the engineering supervisor can check the position of the drilling device through the data center and compare the preset position obtained through measurement; and the drilling construction can be remotely supervised.

This application discloses a multi-raw material synchronous kneading and mixing integrated processing device for animal husbandry, relating to the field of livestock breeding equipment technology; the device includes a mixing base, a drive mechanism installed in the mixing base, a scraping mechanism connected to the drive mechanism, and a linkage component and a mixing component passing through the drive mechanism, the linkage component being movably connected to the mixing component; the mixing base includes a mixing chamber, a central hollow column located in the center of the mixing chamber, and a limiting gear fixed on the central hollow column; the drive mechanism includes a main rotating shaft passing through the central hollow column, a support plate extending from the upper end of the main rotating shaft, a follower gear located at the lower end of the main rotating shaft, and an inner and outer clamping slots opened from the inside out on the support plate; the linkage component is rotatably passed through the inner clamping slot and meshes with the limiting gear below it, and the mixing component is rotatably passed through the outer clamping slot; the rotating mixing component can uniformly and efficiently mix the raw materials, and the scraping mechanism can effectively discharge the mixed material in the mixing chamber.

The invention relates to the technical field of dust suppression of material fields, and discloses dust suppression equipment for a superfine slag powder material field, which comprises a mounting plate, and an adjusting mechanism, a dust suppression mechanism, a dust collection mechanism and a cleaning mechanism are arranged on the mounting plate. The adjusting mechanism comprises a fixing frame, a rotary limiting groove, a rotary table, a worm gear ring, a first supporting plate, a worm, a first motor, a second motor, a rotary shaft and a synchronous belt wheel set. According to the rotary dust suppression spray head, the spraying coverage range can be enlarged, the situation that spraying dead corners exist is avoided, all components on the rotary table rotate, the dust suppression spray head can be driven to rotate, the dust suppression effect is further improved, all corners of a stock ground can be covered, meanwhile, the rotary dust suppression spray head is beneficial to saving water resources, and the production efficiency is improved. Water mist is accurately sprayed to a needed area, water resource waste caused by excessive spraying of a fixed spray head in some areas is avoided, and the operation cost is reduced while the good dust suppression effect is achieved.

The utility model relates to the field of garbage treatment equipment, in particular to an incineration wet ash discharge device which comprises an ash discharge spraying assembly, a stirring and spraying assembly, a first screw conveyor, a second screw conveyor and a residue collecting pool. The ash discharging and spraying assembly, the first screw conveyor, the stirring and wetting assembly, the second screw conveyor and the residual material collecting pool are connected in sequence. According to the ash discharging and spraying device, the spraying assembly of the ash discharging and spraying assembly can be used for carrying out spraying and dust falling on residual ash discharged by the incinerator in the ash discharging pipe and carrying out primary wetting, so that dust flying during ash discharging of the incinerator can be inhibited; materials entering the material receiving barrel are stirred and sprayed through the stirring and spraying assembly, so that the materials are fully wetted and form small blocks or particles, no dust or waste water is generated in the process that the materials are fed into the residual material collecting pool to be collected in a centralized mode, and therefore dust can be restrained, resources and cost can be saved, and the environment is protected. And the environmental benefit and the economic benefit of waste incineration treatment can be improved.

The invention relates to the technical field of preparation equipment, and discloses a horticultural plant nutrient solution preparation facility which comprises a pure water assembly, a raw material box assembly, a mixing reaction kettle and a product storage tank which are sequentially communicated, and the raw material box assembly comprises a solid raw material assembly and a liquid material tank; the solid-state raw material assembly comprises a solid-state raw material storage tank and a solid-state material weighing device; the pure water assembly comprises a pure water machine and a pure water weighing tank, the pure water machine is respectively communicated with the pure water weighing tank and the liquid material dilution stirring kettle, the solid material weighing machine and the pure water weighing tank are respectively communicated with the solid material dissolving kettle, and the solid material dissolving kettle is sequentially communicated with the solid material solution temporary storage tank and the mixed reaction kettle; the liquid material tank is sequentially communicated with the liquid material dilution stirring kettle, the liquid material solution temporary storage tank, the mixed reaction kettle, the transition tank and the product storage tank, and the continuity and accuracy of nutrient solution preparation are achieved through the pure water assembly, the raw material box assembly, the mixed reaction kettle and the product storage tank which are communicated with one another.

The utility model discloses a kind of construction site dust suppression devices for building construction, it is related to construction site dust suppression technical field, including fog gun, the lower end of the fog gun is provided with rotating seat, the lower end of the rotating seat is provided with mixing mechanism, and mixing mechanism includes: mixing tank, the both ends of the mixing tank are respectively connected with water inlet pipe, liquid adding pipe, flow detector is all arranged in the water inlet pipe, liquid adding pipe, stirring rod, the stirring rod is rotatably connected in the bottom of mixing tank, the lower end of the mixing tank is connected with stirring motor, solvent tank, water-soluble rust preventive is stored in the solvent tank.The utility model design structure is reasonable, it can mix water and water-soluble rust preventive together, then mixed solution is sprayed to construction site by fog gun, so not only dust can be inhibited, and because solution contains water-soluble rust preventive, when solution is sprayed on metal parts in construction site, a layer of protective film can be formed on the surface of metal parts, which can isolate air and moisture, prevent metal parts from rusting.

The application provides a cleaning device for slag tank production and processing, which comprises a base, the top of the base is provided with a shell, one end of the top of the shell is provided with a feeding hopper, two scattering shafts are rotationally arranged on the inner top of one end of the shell in a symmetrical manner, the scattering shafts are located below the feeding hopper, and the outer wall of the scattering shaft is provided with a plurality of scattering rods. The device is provided with a three-way spraying system of feeding precooling, scattering cooling and crushing dust suppression. The high-temperature waste slag is sprayed and cooled from the beginning of feeding, and the whole process is continuously water-cooled, so that the temperature of the slag tank waste slag can be quickly reduced, the equipment components are prevented from being damaged by high temperature, the subsequent grinding and recovery are prevented from being affected, the high-temperature waste slag can directly enter the cleaning process without waiting for natural cooling, and the treatment efficiency is greatly improved.

The utility model relates to a dustproof polishing and grinding machine rack which comprises a rack body, a grinding table is arranged on the rack body, a grinding base used for installing a grinding tool is arranged on the grinding table, and a plurality of water filtering holes are evenly distributed in the grinding table. The water spraying plate is fixed to the portion, located above the grinding table, of the rack, and a plurality of water spraying heads facing the grinding heads are evenly distributed on the water spraying plate; a water pump is arranged in the circulating water tank, the water pump is connected with a water inlet pipe on the water spraying plate through a water pipe, and the circulating water tank is located below the water filtering holes and used for receiving sewage left from the water filtering holes. The water spraying plate and the evenly-distributed water spraying heads are arranged on the grinding table, fine water mist is directly sprayed to a grinding area, dust generated in the grinding process is rapidly wetted and settled, the dust content in air is greatly reduced, the problem of dust diffusion in traditional grinding operation is effectively solved, and the grinding efficiency is improved. The air quality of the working environment is obviously improved, and the breathing health of operators is protected.

The utility model relates to the field of elevator accessory machining, in particular to an elevator sill fixing device. The fixing device aims at solving the technical problems that in the prior art, an elevator sill sectional material is not stably fixed, and meanwhile the inner side of a cutting avoiding groove is not easy to clean. An elevator sill fixing device comprises a cutting operation table and a first fixing piece. The first fixing part and the second fixing assembly synchronously move inwards to clamp the two sides of the elevator sill profile in a multi-point mode, the clamped elevator sill profile is very stable and not prone to moving, meanwhile, after cutting is completed, the front end and the rear end of the elevator sill profile can be stably fixed, the elevator sill profile cannot automatically fall off, and damage to an elevator sill is avoided. The cleaning assembly and the cleaning assembly are arranged in the cutting avoiding groove, a large number of fragments and dust falling into the cutting avoiding groove are treated, the dust is timely absorbed and removed by the cleaning assembly, and the fragments are pushed by the cleaning assembly moving left and right and automatically discharged from the left end and the right end of the cutting avoiding groove.

The utility model discloses a multifunctional industrial dust collector, particularly relates to the field of dust collectors, and comprises a dust collection main body, and one side of the surface of the dust collection main body is connected with a functional box in an embedded manner; a motor fan is in lap joint with the interior of the function box, and a dustproof net is in lap joint with the right front of the motor fan. When the dust collector is used, the motor fan and the dustproof net in the function box work cooperatively to prevent dust from entering the motor, the driving element is connected with the driving motor, the rotating circular ring and the dust collecting pipe to provide strong power support, and the rotating circular ring rotates up and down to scrape and press the surface of the dust collecting pipe and scrape off the accumulated dust, so that the dust collecting effect is improved. The atomization function box achieves the function of spraying water mist in the dust collection process through an upper water opening, a water pipe, a water tank and an atomization spray head, dust flying is restrained, dust collection work is more flexible and efficient through the design of a dust collection connecting pipe, a dust collection pipe, a dust collection head and a protective filter screen, safety in the dust collection process is guaranteed, and the equipment is convenient to move through moving wheels at the bottom.

The utility model relates to the technical field of safety protection devices, in particular to a safety protection device of an aluminum cutting machine, which comprises a cyclone separator and a working table, the working table is positioned on one side of the cyclone separator, a separation cabinet a, a separation cabinet b and a separation cabinet c are sequentially mounted on the working table, and the separation cabinet a, the separation cabinet b and the separation cabinet c are sequentially communicated in series through pipelines. According to the design, the cyclone separator is combined with a multi-stage filtering system, so that synergistic and efficient treatment of aluminum material dust and harmful waste gas is realized; the cyclone separator utilizes a spiral air guide plate to strengthen the centrifugal effect, preliminarily separates large-particle dust and inhibits flying; through electrostatic adsorption, gradient filter screen interception and deluge chemical neutralization in sequence, the three stages of separation cabinets connected in series can capture dust (including ultrafine particles) with different particle sizes in a graded mode, the lung inhalation risk of an operator is greatly reduced, and harmful components in waste gas can react with agents in the circulating pool to be converted into harmless substances.

The utility model discloses a sand-fixing vegetation mesh bag and a windbreak sand-fixing structure thereof, the sand-fixing vegetation mesh bag is a mesh bag which is formed by connecting a plurality of layers of composite nets after being enclosed, one end of the mesh bag is open, and the plurality of layers of composite nets are composed of a first paper layer, a plant seed and fertilizer mixing layer, a second paper layer and a plastic net layer which are sequentially arranged. The wind prevention and sand fixation structure is formed by arranging a plurality of wind prevention and sand fixation single bodies, and each wind prevention and sand fixation single body is composed of a sand fixation vegetation mesh bag and sandy soil filled in the sand fixation vegetation mesh bag. The device has the integrated functions of sand stabilization, sand flow prevention and vegetation recovery; the problems of sand prevention and vegetation recovery in areas such as deserts and dunes can be effectively solved.

The utility model discloses a quarrying device of a heading machine for tunnel construction, which comprises a protective shell, the top of the protective shell is fixedly connected with a supporting pipe, the top end of the supporting pipe is fixedly connected with an air collecting shell, the inner side of the air collecting shell is fixedly connected with a crushing shell, the inner side of the crushing shell is fixedly connected with an annular crushing block, and the annular crushing block is fixedly connected with a driving device. The utility model relates to the technical field of tunnel construction. According to the device, crushing teeth are arranged to preliminarily crush and cut rocks, large rocks are gradually crushed into small fragments, then the crushed rocks fall to the bottom of a crushing shell, meanwhile, an arc-shaped material pushing plate rotates to convey the crushed rocks into a conveying assembly, and therefore the rocks mined by the heading machine can be crushed again; and by arranging the conveying assembly, primary separation of impurities in the stone in the conveying link is achieved, and the purity of the stone can be improved.

This invention discloses a dust removal device and method for tail gas from water-soluble fertilizer production, relating to the field of tail gas dust removal technology. The device and method include a dust removal cylinder with a tangential air inlet pipe on one side, causing the tail gas to enter the cylinder and move in a spiral motion. Dust particles within the tail gas undergo initial settling due to gravity and centrifugal force. This invention utilizes a moving mechanism and an air jet assembly to unfold and enclose coarse and fine filter plates into a sealed cylinder. Each coarse and fine filter plate forms a narrow channel with the inner wall of the dust removal cylinder. Pulsed airflow thoroughly cleans the coarse and fine filter plates, and the stripped dust falls into the narrow channel, effectively suppressing large-scale dust dispersion and diffusion, reducing airflow disturbance, minimizing dust dispersion space, accelerating agglomeration and settling, and preventing secondary adsorption caused by dust re-entrainment.