A mine dust cleaning device
By designing a mining dust removal device with rotatable filter plates and filter bags, the problems of filter bags easily becoming clogged and feeders easily becoming blocked were solved, achieving high-efficiency filtration and extending equipment life, while reducing operating load and maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGSHA TIANWEI HUAXIN ENVIRONMENTAL PROTECTION EQUIP CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-06-26
AI Technical Summary
Traditional mining ash removal devices are prone to filter bag clogging and feeder blockage, leading to increased equipment load and energy consumption, making them difficult to meet operational needs.
A mining dust removal device has been designed, which includes a rotatable dust filter plate and a dust filter bag, and is equipped with an electromagnetic pulse valve and a controller. It achieves efficient dust removal through automatic control, avoids uneven local stress and clogging of the dust filter bag, and extends the service life of the equipment.
It achieves efficient dust filtration, reduces equipment operating load, extends equipment life, and reduces maintenance difficulty and cost.
Smart Images
Figure CN224404690U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dust removal technology in mining, and in particular to a dust removal device for mining. Background Technology
[0002] Mining operations generate significant amounts of dust, which is produced during crushing, screening, and the operation of equipment such as belt conveyors and bucket elevators. Excessive dust can harm worker health and pose safety risks. Mining dust removal systems are crucial for dust control, equipment maintenance, and improving the working environment. Therefore, their design is of paramount importance.
[0003] In existing technologies, traditional dust collector filter bags are prone to clogging, the feeder is easily blocked, and the dust collector components are not cleaned in a timely manner or in an improper way. Excessive dust accumulation on the filter bag surface increases resistance, leading to increased equipment operating load, higher energy consumption, increased maintenance difficulty and cost, and difficulty in meeting operational needs.
[0004] Therefore, there is an urgent need for a mining dust removal device to replace the existing dust collector, in order to solve the problems of filter components easily clogging and excessive dust accumulation on the surface increasing the operating load of the equipment. Utility Model Content
[0005] In view of this, this utility model proposes a mining ash removal device, which aims to solve the problem of how to flexibly adapt the flow rate of the flocculation tank, improve construction efficiency and safety.
[0006] This utility model provides a mine dust removal device, comprising:
[0007] The device comprises a housing, an air inlet, an air outlet, a cylinder, a cyclone dust collector, a support frame, a dust hopper, and an electromagnetic pulse valve. The housing contains several dust filter plates and several dust filter bags, which are rotatable. The electromagnetic pulse valve is located on the left side of the housing. An air tank is fixedly connected to the lower side of the electromagnetic pulse valve, and a blowpipe is fixedly connected to its left side. A baffle plate is installed inside the blowpipe, and the baffle plate is movable.
[0008] Furthermore, the housing is fixedly connected to the upper side of the support frame; the air inlet is fixedly connected to the left end face of the housing, and the air outlet is fixedly connected to the right side of the lower end face of the housing; the cylinder is fixedly connected to the upper end face of the outer side of the housing, and the ash hopper is disposed inside the support frame and fixedly connected to the lower side of the outer side of the housing.
[0009] Furthermore, a cover plate is provided on the upper end face of the housing, and an inspection door is provided on the right end face of the housing.
[0010] Furthermore, it also includes a controller, a temperature sensor, a speed sensor, and an emergency stop switch. The controller is mounted on the housing and is electrically connected to the temperature sensor, the speed sensor, and the emergency stop switch. The electromagnetic pulse valve is also electrically connected to the controller, which controls the operating frequency and time of the blowpipe.
[0011] Furthermore, the housing is internally threaded with several fixing plates, and the dust filter plate and dust filter bag are connected to the fixing plates.
[0012] Furthermore, the left end of the fixed plate is provided with a sliding groove and a limiting component. The dust filter plate is fixed by the sliding groove, and the limiting component is used to limit the position of the dust filter plate.
[0013] Furthermore, a rotating groove is provided at the right end of the fixing plate, and a retaining ring is provided inside the rotating groove.
[0014] Furthermore, the air bag is connected to the air path of the jet pipe, an electromagnetic pulse valve is located between the air bag and the air path of the jet pipe, and a baffle is installed inside the jet pipe.
[0015] Furthermore, the retaining ring is rotatable.
[0016] Furthermore, the inside of the blow pipe is provided with a guide rail, on which a partition is slidably fixed. A limit block is provided on the partition, and the partition is electrically connected to the controller.
[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0018] 1. By installing several dust filter plates and several dust filter bags inside the housing, dust in the working area can be filtered efficiently to ensure the best filtration effect.
[0019] 2. A rotating groove is provided on the right end of the fixed plate. A retaining ring is provided inside the rotating groove. The retaining ring can rotate to realize the rotation of the dust bag, which avoids uneven cleaning of the dust bag caused by local stress, and prevents the dust bag from being shortened and the dust removal efficiency from decreasing.
[0020] 3. The electromagnetic pulse valve is located between the air tank and the air path of the blowpipe. A baffle is installed inside the blowpipe. The baffle can move according to the position of the dust filter plate and dust filter bag. The design is more reasonable, and it can automatically clean more effectively, reduce the risk of clogging, and extend the service life of the equipment. Attached Figure Description
[0021] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:
[0022] Figure 1 A schematic diagram of the overall structure of the mining ash removal device provided in this embodiment of the utility model;
[0023] Figure 2 A partial structural schematic diagram of the mining ash removal device provided in this embodiment of the utility model;
[0024] Figure 3 A partial structural schematic diagram of the mining ash removal device provided in this embodiment of the utility model.
[0025] In the diagram: 1-shell; 2-air inlet; 3-air outlet; 4-cylinder; 6-support frame; 7-ash hopper; 8-electromagnetic pulse valve; 9-dust filter plate; 10-dust filter bag; 11-air manifold; 12-blowpipe; 13-controller; 14-fixed plate; 15-rotating groove; 16-clamping ring; 17-partition plate. Detailed Implementation
[0026] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.
[0027] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0028] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.
[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0030] See Figure 1, Figure 2 and Figure 3 As shown, this utility model provides a mine dust removal device, comprising:
[0031] The system comprises a housing 1, an air inlet 2, an air outlet 3, a cylinder 4, a cyclone dust collector, a support frame 6, a dust hopper 7, and an electromagnetic pulse valve 8. The housing 1 contains several dust filter plates 9 and several dust filter bags 10, which are rotatable. The electromagnetic pulse valve 8 is located on the left side of the housing 1. An air manifold 11 is fixedly connected to the lower side of the electromagnetic pulse valve 8, and a blowpipe 12 is fixedly connected to its left side.
[0032] As shown above, the device structure is as follows: the shell 1 is welded from double-layer 304 stainless steel plates, with a detachable explosion-proof cover 15 on the top, and an inspection door 16 with an observation window made of explosion-proof glass installed on the right side. The support frame 6 is a welded H-beam steel frame. The shell 1 is fixed to the upper surface of the support frame 6 with high-strength bolts. The air inlet 2 is located at the lower flange interface on the left end face of the shell, and the air outlet 3 is located on the right side of the lower end face of the shell at a 45° angle. The ash hopper 7 is flexibly connected to the bottom of the shell using a corrugated compensator, with a volume of 2m³. 3 It is equipped with a star-shaped ash discharge valve at the bottom.
[0033] Cylinder 4 is vertically mounted on the top of the housing, equipped with a piston rod, and has a stroke of 500mm. It is used for mechanical vibration in emergency situations. The air tank 11 has a volume of 80L and a working pressure of 0.5MPa. A movable stainless steel partition with a thickness of 3mm is installed between the blowpipes 12, which can slide and adjust its position along the guide rail. The blowpipes 12 adopt a segmented design, with 6 swirling nozzles in each segment. The deviation between the nozzle axis and the center line of the filter bag is ≤2°.
[0034] When the device is working, dust-laden gas enters the cyclone dust collector tangentially through inlet 2, where particles >50μm are centrifugally separated. Coarse particles fall into ash hopper 7, completing primary filtration. The gas rises and passes through filter plates 9, intercepting 10-50μm particles. When the dust accumulation on the surface of filter plates 9 reaches a pressure difference of 500Pa, automatic cleaning is triggered, completing secondary filtration. The gas then enters the filter bag area, where 0.5-10μm particles are trapped. Filter bags 10 rotate at 2-5 r / min to prevent dust accumulation and caking, completing fine filtration. The electromagnetic pulse valve 8 opens for 0.15 seconds every 15 minutes (adjustable). Compressed air is guided by a baffle plate and then forms a vortex jet through cyclone nozzles, simultaneously activating cylinder 4 for auxiliary vibration. Each vibration consists of 3 cycles with a 2-second interval, completing pulse cleaning.
[0035] Specifically, it also includes a controller 13, a temperature sensor, a speed sensor, and an emergency stop switch. The controller is mounted on the housing 1 and is electrically connected to the temperature sensor, the speed sensor, and the emergency stop switch. The electromagnetic pulse valve 8 is also electrically connected to the controller 13, which controls the working frequency and time of the blowpipe.
[0036] Understandably, controller 13 monitors sensor data in real time and compares it with preset thresholds to dynamically adjust the equipment's operating status. Specifically, if the temperature exceeds the threshold, an audible and visual alarm buzzer and red warning light are activated, the air inlet electric valve is closed, and the cooling fan is started; if the filter bag's rotational speed deviation exceeds the threshold, a yellow warning indicator light illuminates; if the emergency stop switch is triggered, the entire system is powered off, cylinder 4 automatically presses down to lock the filter bag, and air tank 11 releases pressure in an emergency.
[0037] The controller 13 integrates a PLC module and is installed inside the explosion-proof control box. A temperature sensor with a range of 0-200℃ is located on the side wall of the ash hopper 7. A speed sensor monitors the filter bag rotation speed with an accuracy of ±0.1 r / min. An emergency stop switch 29 is located on the front of the housing and on the ash hopper operating platform.
[0038] In one preferred embodiment, a human-machine interface is also provided, specifically a touch screen. The touch screen can display parameters such as real-time temperature, filter bag rotation speed, differential pressure, and pulse valve actuation count, and can also adjust parameters such as pulse interval, blowing duration, and filter bag rotation speed limit. A signal isolator is also provided in the control box.
[0039] Specifically, the left end of the fixing plate 14 has a sliding groove and a limiting component. The dust filter plate 9 is fixed by the sliding groove, and the limiting component is used to limit the position of the dust filter plate 9. The right end of the fixing plate 14 has a rotating groove 15, and a retaining ring 16 is provided inside the rotating groove 15. The retaining ring 16 is rotatable.
[0040] Understandably, several fixing plates 14 are symmetrically fixed to the inner wall of the housing via M20 threads. Each fixing plate includes: a T-shaped sliding groove 19 with a width of 12mm on the left end, with a built-in spring-type limiting block 20 to lock the dust filter plate 9; a rotating groove 1521 on the right end, with a 304 stainless steel retaining ring 1622 with ball bearing installed inside, with a rotation angle of ±180°; the dust filter plate 9 uses a 316L stainless steel sintered filter element, which is fixed by the limiting component after being inserted through the sliding groove; the dust filter bag 10 is a PTFE membrane cloth bag, with the bag opening and retaining ring 16 interference fit, and is driven by an external geared motor 23 to rotate at an adjustable speed of 0-10r / min.
[0041] A mechanical stop is installed at the end of the sliding groove, and the axial limit of the retaining ring 16 is achieved using an elastic retaining ring to prevent it from falling off and to limit its movement. The rotating groove 15 has a through hole and an annular oil guide groove machined on its inner wall to ensure free rotation of the retaining ring 16. A lip seal is installed at the groove opening for dust prevention. The inner hole of the retaining ring 16 is hard chrome plated, and a spiral oil groove is formed on its outer edge. It houses a double-row angular contact ball bearing and is connected to the output shaft of the geared motor via a coupling. Three O-rings are installed in the inner hole of the retaining ring 16, and the bag opening of the dust bag 10 is secured with a stainless steel clamp.
[0042] In one preferred embodiment, a vibration sensor is installed at the base of the fixed plate 14. When abnormal vibration is detected, the system is triggered to reduce its speed.
[0043] Specifically, the air reservoir 11 is connected to the air passage of the blowpipe 12, and the electromagnetic pulse valve 8 is located between the air reservoir 11 and the air passage of the blowpipe 12. A baffle is provided inside the blowpipe 12. A guide rail is provided inside the blowpipe 12, and a baffle 17 is slidably fixed on the guide rail. A limit block is provided on the baffle 17, and the baffle 17 is electrically connected to the controller 13.
[0044] Understandably, during installation, the shell is installed vertically on the ground, and the bottom of the ash hopper 7 is left with 1.2m of operating space from the ground. After the air bag 11 is installed, a 30-minute pressure test is required. The initial position of the baffle 25 is 50mm from the edge of the dust filter plate 9. It can be adjusted manually / automatically during operation. After the filter bag 10 is installed, a 48-hour trial run is required, with the first 24 hours under no-load and the last 24 hours under half-load.
[0045] It will be understood by those skilled in the art that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A mine ash removal device, characterized in that, include: The casing (1), air inlet (2), air outlet (3), cylinder (4), cyclone dust collector, support frame (6), ash hopper (7) and electromagnetic pulse valve (8); The housing (1) is provided with a plurality of dust filter plates (9) and a plurality of dust filter bags (10) inside, and the dust filter bags (10) are rotatable; The electromagnetic pulse valve (8) is located on the left side outside the housing (1). An air bag (11) is fixedly connected to the lower side of the electromagnetic pulse valve (8), and a blow pipe (12) is fixedly connected to the left side. A baffle (17) is provided inside the blow pipe (12), and the baffle (17) is movable.
2. The mine ash removal device according to claim 1, characterized in that, The housing (1) is fixedly connected to the upper side of the support frame (6); The air inlet (2) is fixedly connected to the left end face of the housing (1), and the air outlet (3) is fixedly connected to the right side of the lower end face of the housing (1). The cylinder (4) is fixedly connected to the upper side of the outer side of the housing (1), and the ash hopper (7) is set inside the support frame (6) and fixedly connected to the lower side of the outer side of the housing (1).
3. The mine ash removal device according to claim 1, characterized in that, The upper end face of the housing (1) is provided with a cover plate, and the right end face of the housing (1) is provided with an inspection door.
4. The mine ash removal device according to claim 1, characterized in that, It also includes a controller (13), a temperature sensor, a speed sensor and an emergency stop switch. The controller is located on the housing (1) and is electrically connected to several temperature sensors, several speed sensors and an emergency stop switch. The electromagnetic pulse valve (8) is also electrically connected to the controller (13). The controller (13) controls the working frequency and time of the blowpipe.
5. The mine ash removal device according to claim 1, characterized in that, The housing (1) has several fixed plates (14) internally threaded, and the dust filter plate (9) and dust filter bag (10) are connected to the fixed plates (14).
6. The mine ash removal device according to claim 5, characterized in that, The fixed plate (14) has a sliding groove and a limiting component on its left end. The dust filter plate (9) is fixed by the sliding groove and the limiting component is used to limit the dust filter plate (9).
7. The mine ash removal device according to claim 5, characterized in that, The right end of the fixed plate (14) is provided with a rotating groove (15), and a retaining ring (16) is provided inside the rotating groove (15).
8. The mine ash removal device according to claim 1, characterized in that, The air bag (11) is connected to the air passage of the blow pipe (12), and the electromagnetic pulse valve (8) is located between the air bag (11) and the air passage of the blow pipe (12).
9. The mine ash removal device according to claim 7, characterized in that, The retaining ring (16) is rotatable.
10. The mine ash removal device according to claim 1, characterized in that, The inside of the blow pipe (12) is provided with a guide rail, on which a partition plate (17) is slidably fixed, and a limit block is provided on the partition plate (17).