82 results about "Dust emission" patented technology

The invention relates to the technical field of electric precipitation, in particular to overload monitoring equipment and a monitoring method for electric precipitation equipment, and the method comprises the following steps: acquiring target production data; determining a target dust discharge amount according to the target production data; and determining the target current magnitude according to the target dust discharge amount. The method has the advantages that the neural network is used for conducting deep learning on online collected production data, a corresponding relation model between the dust amount and the power plant production data is established, the smoke dust emission amount is predicted based on the model, the average secondary current amount of the electric field is adjusted in real time on the basis, and the purposes of reducing consumption and reducing power consumption are achieved. According to the invention, the control aims of improving the reliability of the IGBT and prolonging the service life of the IGBT are fulfilled, the spark discharge phenomenon can be reduced or avoided as much as possible, equipment such as the IGBT and a trigger circuit board can be better protected, and unnecessary electric energy consumption can be effectively reduced at the same time.

The utility model discloses a dry quenching coke loading system capable of reducing dust emission, which comprises a furnace cover opening and closing mechanism arranged on one side of a furnace mouth of a dry quenching furnace, a loading device for dry quenching, a tail coke hopper arranged on one side of the furnace mouth of the dry quenching furnace, and a movable coke tank suspended above the furnace mouth of the dry quenching furnace, two running rails are arranged on the two sides of a top port of the loading device side by side, a movable plate trailer is arranged on the two running rails, a movable motor is arranged on the movable plate trailer, walking wheels are arranged at the bottom of the movable plate trailer, and a cover plate used for shielding an upper port of the loading device is arranged on the front portion of the movable plate trailer. The cover plate is driven by the movable plate trailer to transversely move left and right along the running track, the upper layer of the cover plate is a metal plate, and the lower layer of the cover plate is provided with a high-temperature-resistant heat insulation material layer. Limiting switches are arranged at the two ends of the running track respectively. According to the utility model, the loading device is sealed after coke loading is finished, so that the dust removal effect is prevented from being influenced by the entrance of wild wind, and dust can be prevented from being dissipated.

The application provides a soil erosion risk early warning method and device based on dust data, which comprises the following steps: performing grid processing and screening on a region to be analyzed to obtain an effective grid region; obtaining NDVI data and soil moisture data of the effective grid region; determining a slope length factor and a slope factor of each effective grid region; determining net dust data in the region to be analyzed by eliminating the influence of wind direction; determining a dust emission value of each effective grid region based on the NDVI data, the soil moisture data and the net dust data; calculating the NDVI data, the soil moisture data, the slope length factor, the slope factor and the dust emission value by using a neural network algorithm to determine a soil erosion intensity prediction value; combining the soil erosion intensity prediction value to determine a soil erosion value of each effective grid region; determining a soil erosion risk grid based on the current soil erosion value and historical soil erosion data, and performing risk early warning on the soil erosion risk grid.

The utility model relates to mining equipment dust removal technical field discloses a dust removal structure of mining screening machine, including the box, the box is arranged obliquely, one side of the box is equipped with first opening, the other side of the box is equipped with second opening, still include: support leg, four support legs are arranged respectively below the box, and can adjust the height of the box through height adjusting assembly set up on the support leg, dust removal structure, dust removal structure sets up at the top of the box, can carry out spraying dust removal operation directly to the first opening and the second opening of the box, the bottom of the box is equipped with the protective cover. The utility model has the advantages compared with prior art: adopt all -round covering type dust removal's mode, effectively prevented the dust emission of screening machine running process, and is equipped with spraying dust removal structure at the feeding and discharging of both sides, auxiliary further dust fall, improve the dust removal efficiency.

The utility model belongs to the technical field of dust removal of pelletizers, and particularly relates to a dust removal device of a pelletizer, which is characterized in that a mounting block is arranged on a base, a pelletizing cylinder is arranged on the mounting block, a pelletizing mold is arranged at the top end of the pelletizing cylinder, a gas collecting hood is arranged at the top end of the pelletizing cylinder, a first fan is arranged on the base, and a second fan is arranged on the base. An exhaust pipe is arranged on the first fan; a set of comprehensive multi-stage dust removal system is constructed, a gas collection hood is arranged at the top end of a granulation cylinder and matched with a first fan and an air purifier, a large amount of waste gas and dust generated in the granulation process can be collected and purified in time, meanwhile, a dust collection hood is arranged on a treatment cylinder and matched with a third fan and a dust collection box, dust generated in the treatment cylinder is collected and filtered, and the dust removal efficiency is improved. Compared with a traditional single dust removal mode, the multi-stage dust removal mode has the advantages that dust of different sources and different particle sizes can be more efficiently captured, the dust removal effect is remarkably improved, and pollution of dust emission to the environment is greatly reduced.

This invention provides a method and apparatus for dust suppression using a heavy-duty hammer discharge system. The method includes the following steps: First, a target dust accumulation amount is preset based on the ash hopper volume. Second, the dust accumulation state is monitored, and the actual dust accumulation amount at the time of the last actual operation of the discharge valve is recorded. The actual accumulation amount is compared with the target accumulation amount to obtain the deviation accumulation amount. Third, the counterweight parameters of the heavy hammer are adjusted according to the deviation accumulation amount to change the operating threshold of the discharge valve for the next actual operation. When the actual dust accumulation amount reaches the operating threshold of the discharge valve, the discharge valve opens, and the dust is discharged into the discharge channel. After discharge, the discharge valve closes. Fourth, the dust emission level is determined based on the deviation accumulation amount, and dust is vacuumed at the ash outlet according to the dust emission level during the discharge process. Fifth, the discharge channel is self-cleaned after vacuuming to remove dust adhering to the inner wall of the discharge channel. The heavy-duty hammer discharge system provided by this invention can improve the accuracy of the discharge timing.

The application discloses a kind of road construction site dust monitoring method and system, it is related to road construction site dust monitoring field, comprising: through the fixed dust monitoring point of fusing road construction drawing and field survey data layout, and based on fixed dust monitoring point coverage density calculation real-time identification monitoring blind area, when identifying monitoring blind area, trigger mobile dust monitoring point supplement;Through the traffic parameters such as synchronous acquisition vehicle flow, vehicle speed and dust concentration data, and establish time series correlation model to analyze traffic active state and dust concentration change trend, and then calculate and summarize dust production component, obtain regional dust production intensity, eliminate coverage blind area by dynamic monitoring point layout, establish the quantitative correlation of traffic parameters and dust Calculation of dust production intensity, effectively improve the comprehensiveness and control timeliness of road construction dust monitoring, guarantee the safety of construction area and surrounding environment.

The invention relates to the technical field of alternative fuel flying dust disposal, and discloses an alternative fuel dust collection system which comprises an air suction cover, the air suction cover is arranged above an equipment flying dust point in a covering mode, and a filtering assembly is arranged in the air suction cover in the airflow direction and used for adsorbing and filtering fiber dust; the air inlet end of the dust collector is connected with the air outlet of the air suction cover, and a first-stage filtering chamber and a second-stage filtering chamber which are transversely arranged side by side and are communicated with each other are arranged in the dust collector; and the exhaust fan is connected with the outlet end of the dust collector and is used for driving the dust-containing airflow to be discharged from the outlet end of the dust collector after being filtered by the air suction cover and the dust collector in sequence. The alternative fuel dust collection system can effectively filter sheet-shaped and strip-shaped large-particle dust and flying catkins at an alternative fuel dust raising point, and the operation load of downstream dust collection equipment is effectively reduced.

This utility model discloses a material guide trough for easy dust removal, relating to the field of dust removal and material conveying technology. The utility model includes a base plate, with a transmitter fixedly connected to the top outer wall of the base plate. A dust removal mechanism is provided on the top outer wall of the transmitter, including the material guide trough. This utility model incorporates a curved pipe. When the vacuum cleaner starts operating, the generated suction is transmitted through the transmission pipe into the curved pipe, and then through the curved pipe into the dust collection hood. The dust collection hood then sucks up the dust generated by the material being poured. The sucked-up dust then passes through the curved pipe and the transmission pipe back into the vacuum cleaner, and finally falls into a dust collection box for storage, facilitating subsequent unified cleaning of the collected dust. This achieves the effect of easy dust removal, effectively reducing dust emissions during material conveying, lowering the dust content in the workplace air, and improving the air quality of the workshop.

The application discloses a dust escaping and recycling system of a coking plant dust removal ash bin, relates to the technical field of industrial dust removal, and comprises a dust removal ash unloading room, an ash tank operation platform, a dust removal ash storage tank, a dust collection pipeline, an automatic sealing gate, a dust humidifying and stirring system, a dust removal butterfly valve, a fluid conveying control valve, a dust remover and a control device. A mounting hole corresponding to the dust removal ash storage tank is formed in the side wall of the dust removal ash unloading room, one end of the dust collection pipeline is arranged in the mounting hole, the other end of the dust collection pipeline is connected to the input end of the dust remover, the output end of the dust removal ash storage tank is connected to the input end of the dust humidifying and stirring system, a dust suction inlet is formed in one end of the dust collection pipeline located in the dust removal ash unloading room, the dust removal butterfly valve is arranged in the dust collection pipeline, and the automatic sealing gate is arranged at the entrance of the dust removal ash unloading room. Through the arrangement, dust pollution is significantly reduced, equipment corrosion is reduced, manual cleaning intensity is reduced, and the working environment is improved.

The utility model belongs to the technical field of ceramic part accurate grinding, and particularly relates to a machining device for ceramic part accurate grinding, which comprises a supporting seat, a sealing box is fixedly mounted on the upper surface of the supporting seat, a switch door is hinged to one side of the outer wall of the sealing box, and a triangular chuck for clamping a ceramic part is rotatably connected to one side of the inner wall of the sealing box through a fixed shaft. A cleaning mechanism is arranged on the sealing box; by arranging the cleaning mechanism and the closed polishing environment, dissipation of dust is effectively reduced, so that health risks are reduced, the dust generated in the polishing process can be efficiently recycled through the dust collection opening and the dust collector, dust accumulation and environmental pollution are avoided, the dust can be stirred in the sealing box, and the polishing effect is improved. Therefore, the dust recovery efficiency is improved, and the dust recovery device has the remarkable advantages of reducing dust harm, improving the dust recovery efficiency, being easy and convenient to operate, convenient to maintain and the like.

The application discloses a production process of a road guardrail corrugated beam, which comprises the steps of laser cutting, high-temperature forming and quenching, cutting and trimming, surface treatment and laser punching, etc.; the application cancels the galvanizing process, can reduce the zinc consumption of each ton of product, avoids the discharge of galvanizing wastewater (containing heavy metals such as zinc and chromium), adopts dry operation in the ultrasonic shot blasting process, has no dust pollution, and reduces dust emission compared with the traditional sand blasting process. The thin design makes the weight of the corrugated beam per unit length lower, and the production and transportation costs are also significantly reduced, and the application is especially suitable for installation operation in mountainous areas; the anti-corrosion feature makes the corrugated beam directly used in harsh environments such as coastal salt mist areas and industrial acid rain areas, can replace the traditional stainless steel galvanized guardrail, and the application range is expanded to high-corrosion scenes which cannot be covered by the traditional process.

This utility model relates to the field of dust removal technology, specifically to a micro-powered dust removal device, including a support frame installed above a conveyor belt. A collection chamber is located at the lower part of the support frame, and a filter device is installed inside the collection chamber. The filter device is connected to a dust removal device. An mounting plate is installed above the filter device, and a control chamber is located above the mounting plate. A valve for controlling the connection between the control chamber and the collection chamber is installed inside the control chamber. A negative pressure fan is installed above the control chamber, enabling automatic dust removal. This eliminates the need for frequent manual cleaning of the filter element, significantly reducing operation frequency. During dust removal, the device does not need to stop and can continuously perform dust filtration, improving production efficiency. The collected dust can be directly recycled, avoiding resource waste and reducing dust emissions from polluting the environment.

This utility model relates to an activated coke material conveying and ash removal device, belonging to the technical field of conveying devices. It includes an outer chute connected between the material conveying hopper and buffer tank of a chain bucket elevator. An inner chute is installed inside the outer chute, with its inlet connected to the outlet of the conveying hopper. A grid is installed inside the outer chute, located below the outlet of the inner chute. An air inlet unit and a dust removal unit are provided on the outer chute; the air inlet unit is located below the grid, and the dust removal unit is located above the grid. An inspection port is provided on the outer chute, located above the grid, and a maintenance door is hinged to the inspection port. This invention is easy to operate and can effectively separate and remove fine particles and dust from activated coke materials, ensuring that the material particle size meets requirements, improving the adsorption capacity of the activated coke, and preventing excessive dust from entering the module's output hotspot and exceeding the outlet dust emission standard.

The utility model relates to a special tool for mounting a dust removal filter bag, which aims to solve the technical problems of dust emission and difficulty in mounting of the dust removal filter bag, and adopts the technical scheme that the special tool comprises a pneumatic reversing valve, a double-shaft double-acting stroke adjustable cylinder, a pneumatic clamp, two cylinders, a first clamp and two second clamps, the pneumatic reversing valve is fixedly arranged on the top face of the rear portion of the double-shaft double-acting-stroke-adjustable air cylinder, the pneumatic clamp is fixedly arranged on the bottom face of the middle of the double-shaft double-acting-stroke-adjustable air cylinder, the base is arranged at the front end of a cylinder barrel of the double-shaft double-acting-stroke-adjustable air cylinder, the two air cylinders are fixedly arranged on the bottom face of the base, and the first clamp is arranged at the front end of a piston rod of the double-shaft double-acting-stroke-adjustable air cylinder. The two second clamps are arranged at the ends of piston rods of the two air cylinders, and the pneumatic reversing valve is communicated with the double-shaft double-acting stroke adjustable air cylinder, the pneumatic clamps and the air cylinders through an air pipe four-way joint and an air pipe three-way joint. According to the utility model, the groove of the spring ring of the dust collecting bag can be exactly embedded into the inner edge of the tubesheet hole. The problems of air leakage and dust leakage are solved, and installation accuracy is improved.

The utility model discloses a friction device and a system for evaluating the dust emission amount of a floor material for a clean room, and belongs to the field of material performance testing. The friction device comprises a bottom plate; the four guide rods are vertically arranged on the upper surface of the bottom plate and are distributed in a rectangular array; the sample jacket is in sliding connection with the guide rod; the grinding assembly is arranged on the upper surface of the bottom plate and located in the inner space of the two sets of guide rods; the load assembly is arranged at the upper part of the sample jacket; when the friction device is not in the friction state of the to-be-tested sample, the sample jacket is higher than the grinding disc; and in the friction process, the sample jacket drives the to-be-tested sample to move downwards along the guide rod, and the to-be-tested sample is kept in contact with the grinding surface of the grinding disc. The utility model further provides a system which comprises the friction device and is used for evaluating the dust emission amount of the floor material for the clean room. The friction device is structurally designed, so that the quantity of particles generated in the friction process can be ensured, and the dispersion uniformity of the particles is improved.

The invention discloses raw material treatment equipment for graphite electrode production, and relates to the technical field of graphite electrode raw material treatment. According to the raw material treatment equipment for graphite electrode production, a special dust falling mechanism is arranged for the jaw type coarse crusher, a water source is driven by a first water pump to synchronously spray and atomize an inlet and an outlet of the jaw type coarse crusher after being shunted, and meanwhile, fine crushed materials are subjected to secondary dust falling washing by using a spraying branch pipe at an inlet of the ring hammer type fine crusher; dust suppression in the coarse crushing and fine crushing full-crushing links is achieved, dust dissipation is reduced from the source, the production operation environment is greatly improved, and meanwhile, loss of raw materials caused by dust loss is reduced; and after being filtered, the waste water is conveyed to the fine crushing unit for secondary spraying and dust falling, so that stepped cyclic utilization of the dust falling waste water is realized.

The invention belongs to the technical field of wet dust removal, and discloses a two-stage wet-type purification dust removal process flow, which comprises the following steps: a plurality of sections of dust suction hoods fully cover each dust raising point to collect wet dust gas; the dust collection pipeline is provided with a slurry discharge hole and is connected with a plurality of sections of dust collection hoods, so that deposited slurry in the dust collection pipeline automatically flows and is discharged; the wet type pre-dedusting device and the wet type dedusting gas washer are connected in series to carry out secondary wet type purification and filtration on wet dust gas; the clean water pipeline is used for supplying clean water to the wet-type pre-dust-removing device and the wet-type dust-removing gas washer; sewage generated by the two-stage dust removal equipment is temporarily stored in the sewage transfer box and is synchronously conveyed to the sewage reuse equipment system through the sewage pump so as to be consumed. The technological process is simple in structure, small in occupied area and suitable for small-site operation, through the two-stage wet-type purification and filtration dust removal process, the dust removal efficiency is improved, the dust concentration of exhausted gas is reduced, the national environment-friendly emission requirement is met, and the problems of sewage collection, emission and recycling in a traditional wet-type dust removal system are solved.

The utility model discloses a plate positioning and cutting device for lifting table production, and relates to the field of plate cutting and positioning, the plate positioning and cutting device comprises a base, a rectangular frame is integrally formed at the upper end of the base, a groove is formed in the rectangular frame, a dust suction port is formed in the center of the bottom of the groove, a dust suction pipe is fixedly mounted in the dust suction port, and the dust suction pipe is fixedly connected with the base. A dust collector is fixedly connected to the end, away from the dust collection opening, of the dust collection pipe, a double-shaft motor is fixedly installed in the center of the bottom of the base, third threaded rods are fixedly installed on an output shaft of the double-shaft motor, and threaded blocks are in threaded connection with the outer rings of the third threaded rods on the two sides; sliding rods are integrally formed on the two sides of the two threaded blocks. By the adoption of the structure, a worker starts the dust collector to effectively clean away chippings and powder gathered in the rectangular frame, dust can be effectively sucked away under the work of the dust collector, and the situation that cutting dust is diffused into air is effectively reduced.

The application provides a dust emission simulation device, which comprises a dust mixing device, a first dust mixing assembly and a second dust mixing assembly, a dust filling cavity, a first mixing cavity and a second mixing cavity which are sequentially connected, the first dust mixing assembly and the second dust mixing assembly are respectively used for stirring dust in the first mixing cavity and / or promoting dust flow, a shunt hole plate is arranged in the second mixing cavity and divides the second mixing cavity into a placing cavity and a communication cavity, the communication cavity is communicated with the first mixing cavity and has a dust injection port at an end away from the placing cavity, the second dust mixing assembly is communicated with the placing cavity and blows air towards the communication cavity, and the shunt hole plate has a plurality of ventilation strip holes with gradually increased flow areas in the direction from the first mixing cavity to the second mixing cavity, so as to shunt the air flow of the second dust mixing assembly. The dust emission simulation device provided by the application can solve the dust emission effect of the prior art.

The invention discloses secondary cyclone dust removal equipment for underground air purification, and belongs to the technical field of coal mine dust removal equipment, the secondary cyclone dust removal equipment comprises a vertically arranged primary cyclone dust collector, and is characterized in that the upper part of the primary cyclone dust collector is communicated with a vertically arranged secondary cyclone dust removal integrator; the secondary cyclone dust removal integrator comprises a plurality of secondary cyclone dust removers which are distributed in a circumferential array manner, a dust collection barrel communicated with the lower parts of all the secondary cyclone dust removers, and an air collection barrel communicated with the upper parts of all the secondary cyclone dust removers. According to the dust removal equipment, the two-stage cyclone dust removers are adopted to work in parallel, compared with a traditional first-stage cyclone dust remover, the dust emission concentration is effectively reduced, and due to the fact that the multiple second-stage cyclone dust removers are arranged, fine particles can be captured more efficiently; the integrated design saves space and adapts to the underground narrow environment.

This utility model discloses a dust collection machine, including a machine body. A collection shaft is rotatably mounted on the bottom of the machine body, and hammer blades are provided on the collection shaft. Two interconnected negative pressure fans are provided in the machine body. The air inlet of the negative pressure fan is located above the collection shaft, and the air outlet is connected to the feeding duct. The feeding duct is located on the top of the machine body, with an arc section at its upper end and a screen plate on its outer wall. This utility model relates to the field of dust collection machine technology. The hammer blades of the collection shaft operate at a height of more than 50 mm off the ground, avoiding direct impact on the soil and reducing dust from the source. At the same time, the hammer blades can crush straw, improving collection efficiency. The air inlet of the negative pressure fan is located above the collection shaft, forming a local negative pressure field, adsorbing straw while separating dust through the dust collection screen. The positive pressure fan recycles the dust in the dust collection duct and blows up the straw close to the ground, realizing a closed loop of "collection-dust removal-reuse". The dust removal efficiency is high and there is no external dust emission.

This application relates to the field of dust covers and discloses a dust cover for grain and oil loading and unloading that can reduce dust emissions. The dust cover for grain and oil loading and unloading in this application includes a dust cover body, a filter box located adjacent to the dust cover body, a dust filter liquid inside the filter box, and a second sealing cover at the upper end of the filter box. A rear connecting pipe is located at the upper end of the second sealing cover to facilitate the discharge of the dust-treated air from the filter box, ensuring the smooth operation of the structural components. This effectively treats dust generated during grain and oil loading and unloading. The second sealing cover facilitates regular maintenance of the filter box by workers, ensuring its operational efficiency and facilitating subsequent dust suppression operations.

The utility model discloses a marble processing continuous type chamfering machine which comprises two machine frames, the opposite faces of the two machine frames are rotationally connected with conveying rollers, a first motor is installed above the front faces of the machine frames, an installation base is fixed above the back face of the machine frame at the rear end, and a second motor is installed on the upper surface of the installation base. A rotating rod is fixed to the output end of the second motor, and a chamfering tool is installed at the front end of the rotating rod. The chamfering machine further comprises a protective cover installed on the outer side of the chamfering tool. According to the continuous chamfering machine for marble machining, dust generated in the machining process can be effectively collected and prevented from being discharged into air to cause environmental pollution through rotation of the fan, and cooling water can be sprayed to a chamfering tool through a water pump, a liquid inlet pipe and a spray head, so that the temperature in the machining process is reduced, tool abrasion is reduced, and the machining efficiency is improved. And meanwhile, chippings generated by machining can be washed away, and the quality of the machined surface is guaranteed.

The utility model discloses an artificial graphite carburant crushing device which comprises a supporting block, a crushing box, a feeding port, a collecting box, a crushing roller and a through hole, the top of the supporting block is fixedly connected with the bottom of the crushing box, the bottom of the feeding port is fixedly connected with the top of the crushing box, the feeding port is communicated with the top of the crushing box, and the collecting box is fixedly connected with the top of the crushing box. The two sides of the crushing roller are movably connected with the two sides of the inner wall of the crushing box through shaft pins, and the through hole is formed in the back face of the crushing box. Through the arrangement of the dust removal box and the electrostatic dust removal rod, a user can conveniently install the electrostatic dust removal rod by utilizing the dust removal box, and then the electrostatic dust removal rod is utilized to adsorb fine particles escaping from the through groove on the surface of the electrostatic dust removal rod, so that the flying of dust can be reduced, and the problem that the crushed graphite contains a large number of relatively fine particles and is not easy to damage is solved. And the fine graphite particles drift into the air and are easily inhaled into the body of the user, so that the body of the user is easily injured in the working environment for a long time.

The invention relates to automatic bagging equipment for concrete admixtures, relates to the technical field of bagging equipment, and solves the technical problems that when the admixtures are bagged, dust escapes, health is harmed, and conveying is affected due to hopper arching. The automatic bagging equipment for the concrete admixtures comprises a frame, a hopper, a feeding barrel, a discharging barrel, a discharging barrel and a conveying mechanism; a suction pipe is connected between the discharging barrel and the guiding barrel, the discharging barrel is sleeved with a storage barrel, the storage barrel is internally connected with a pipe barrel, the pipe barrel is internally connected with a piston, the top of the piston is connected with a push rod, the bottom of the inner wall of the storage barrel is connected with an electric push rod, and the output end of the electric push rod is connected with a top plate; according to the dust collection device, dust escaping after an additive is bagged is collected, a large amount of pollution to the working environment due to the fact that the dust overflows from an opening of a packaging bag is effectively reduced, the collected dust can be sprayed back into the packaging bag in the next bag, and the situation that the collected dust falls due to the gravity effect is prevented by closing the suction pipe in the suction intermittent period.

This invention relates to the field of automatic control and processing technology, specifically to an adaptive control method for crushing construction solid waste. The method includes real-time acquisition of particle size, rebar ratio, moisture content, strength, and feed rate via a multi-source sensor array; generation of operating condition vectors via a cross-modal fusion network; and training of a convolutional neural network to output rotor speed, cavity clearance, hydraulic pressure, screen aperture size, and shape memory alloy deformation. This application also relates to adaptive control equipment for crushing construction solid waste. The controller of this application synchronously drives a variable frequency motor, hydraulic cylinder, variable screen, and Ni-Ti shape memory alloy actuator, completing reversible geometric adjustment within 10 seconds. This enables rapid switching between coarse and fine crushing, incremental updates via online particle size detection and energy consumption metering feedback network, forming a perception-decision-execution closed loop. This significantly reduces energy consumption, substantially improves particle size qualification rate, extends liner life, reduces the need for manual intervention, enhances overall operational stability and intelligence, and reduces dust emissions.

The invention relates to the technical field of dust emission detection, in particular to bag-type dust collector dust emission detection equipment based on laser particle size analysis, which comprises a case, a detection cylinder, a pump set and a detection assembly, an inner cavity of the detection cylinder is sequentially provided with a flow guide cover, a rectification grid plate, an exhaust cabin and an absorption cabin, the flow guide cover is connected with a smoke exhaust pipe at the discharge end of the bag-type dust collector, the rectification grid plate is used for uniformizing airflow, and the detection assembly is internally provided with a detection disc, a plurality of detection cavities, a light source part and a photoelectric receiver and is used for collecting scattered signals of dust particle sizes; the pump set is composed of a motor, a static cover, a movable disc and a vortex strip, the movable disc is driven by a crank disc to move in a reciprocating mode to form negative-pressure airflow, and circular flow of sampling and discharging is achieved. According to the invention, stable sampling, multi-angle laser particle size detection and safe purification emission of gas discharged by the bag-type dust collector are realized, and the device has the advantages of high detection precision, stable gas flow, strong self-cleaning property and suitability for long-term online monitoring.

This invention discloses a fully automated finished stone material preparation system and its production process, belonging to the field of building material preparation technology. The system adopts a factory-style assembly line layout, sequentially including: a raw material crushing and shaping unit, a sand making and grading unit, a finished product sorting and storage unit, a dust collection and stone powder recovery unit, a material circulation and buffer unit, a resource-based packaging unit, and a central intelligent control unit. The finished product sorting and storage unit is equipped with parallel and independently conveying No. 1 and No. 2 finished product belts, a gravel finished product belt, and a dry sand finished product belt; the dust collection unit includes a dust collector network, a stone powder silo, and a dust hopper; the resource-based packaging unit directly or in combination with other materials forms bagged products from stone powder. This invention integrates aggregate shaping, dry sand making, full stone powder recovery, and compounding and packaging processes, achieving material balance and adaptive quality adjustment through intelligent control. It produces no process wastewater, achieves 100% stone powder utilization, and maintains a dust emission concentration ≤8mg / m³, realizing green, efficient, and intelligent production.

This utility model discloses a dust collection device for fused white fused alumina, comprising an air inlet pipe, a U-shaped dust removal pipe, and a buffer pipe. The U-shaped dust removal pipe and the buffer pipe are respectively connected to the top two ends of the air inlet pipe. A positioning plate is fixedly installed on the bottom inner wall of the air inlet pipe. A J-shaped air guide pipe is fixedly installed in the center of the positioning plate through an opening. A bearing is fixedly installed on the outer wall of the other end of the J-shaped air guide pipe, and a metal mesh cover is fixedly installed on the outer ring of the bearing. This utility model introduces dust-containing gas through the air inlet pipe. The gas then enters the rotating metal mesh cover through the J-shaped air guide pipe, dispersing into fine bubbles that enter the U-shaped dust removal pipe. This allows for thorough mixing of the gas and solution, greatly increasing the contact area between the gas and solution, enabling the dust to be fully mixed and adsorbed. This more efficiently removes dust from the gas, effectively reducing the dust emission concentration during the smelting of white fused alumina and minimizing pollution to the surrounding environment.