Automated dust removal equipment during white fused alumina smelting process

Abstract

This invention belongs to the field of environmental protection equipment and proposes an automated dust removal device for the smelting process of white corundum materials. The device includes a gas collection system, a bag filter, a dust removal fan, and a dust removal flue. The bag filter comprises a top cover, a housing, and a funnel arranged sequentially from top to bottom. The housing has a perforated plate with multiple filter components, each including filter bags and a supporting mesh frame. A discharge valve is located at the bottom of the funnel, and an anti-bridging component is positioned near the bottom. A leak-sealing component is located above the filter components, comprising a leak-sealing frame, a sealing cover, an electromagnetic clutch, and electrical connection wires. A solar photovoltaic device is installed in the dust removal station to provide power to the electromagnetic clutch. This invention is rationally designed, facilitates ash discharge, and allows for timely detection of filter bag damage and leak sealing, thus improving the environmental performance and overall utilization rate of the equipment and making it suitable for large-scale promotion.

Description

Technical Field

[0001] This invention belongs to the field of environmental protection equipment, and in particular relates to an automated dust removal device in the smelting process of white fused alumina materials. Background Technology

[0002] White fused alumina is a synthetic abrasive, primarily composed of aluminum oxide (over 99%), with small amounts of iron oxide and silicon oxide. The production process of white fused alumina includes raw material preparation, smelting, cooling, crushing and shaping, magnetic separation for iron removal, screening, and packaging. During the smelting process, a large amount of dust is generated and enters the emission channel with the exhaust gas; therefore, purification treatment is necessary to meet environmental protection requirements.

[0003] Currently, to ensure purification efficiency, a gas collection system is generally installed and connected to the dust collection equipment. Existing dust collection equipment typically includes cyclone dust collectors, baghouse dust collectors, and electrostatic precipitators, among others. Baghouse dust collectors are particularly widely used in white fused alumina plants, as exemplified by the dust collection device for white fused alumina production disclosed in CN208426820U and the baghouse dust collection device for processing and producing white fused alumina disclosed in CN202322920659.6. However, most baghouse dust collectors suffer from several problems. Firstly, dust bridging may occur at the bottom of the dust collector hopper, affecting ash discharge efficiency. Secondly, damage to the filter bags may not be detected and addressed promptly, leading to substandard dust collection systems and impacting the air quality.

[0004] Existing patent CN202420882309.7 discloses a dust collector controller, including: a main processor, a power supply module, a pulse drive module, an analog signal acquisition module, and a digital signal input acquisition module; the main processor is connected to the power supply module, the pulse drive module, the communication module, the analog signal acquisition module, and the digital signal input acquisition module respectively; the pulse drive module is connected to a vibrator, a blower valve, and an offline valve respectively, and the vibrator, blower valve, and offline valve are located in the dust collection chamber; the analog signal acquisition module is connected to a bag leakage detection device; the digital signal input acquisition module is connected to a fluorescence detector; the fluorescence detector is located in the dust collection chamber. This device can detect the damage of the filter bags online in real time, improving the speed of locating bag damage and allowing for timely replacement of filter bags. However, the timing of filter bag replacement generally requires stopping the machine, especially since the dust and exhaust gas in the white corundum workshop carries high heat, making real-time filter bag replacement unreasonable. Summary of the Invention

[0005] This invention addresses the technical problems existing in the aforementioned environmental protection dust removal equipment by proposing an automated dust removal device for the smelting process of white corundum materials. This device is rationally designed, facilitates ash unloading, and allows for timely detection of filter bag damage and the adoption of leak-sealing measures, thereby improving the environmental performance and comprehensive utilization rate of the equipment.

[0006] To achieve the above objectives, the technical solution adopted by this invention is as follows: The automated dust removal equipment for the smelting process of white fused alumina materials provided by this invention includes a gas collection system. A dust removal station is arranged in the output direction of the gas collection system. The dust removal station includes multiple bag filters. A dust removal fan and a dust removal flue are arranged on the discharge side of each bag filter. Each bag filter includes a top cover, a housing, and a funnel arranged sequentially from top to bottom. A perforated plate is arranged inside the housing. Multiple filter components are arranged on the perforated plate. Each filter component includes filter bags and a supporting mesh frame. The funnel... The bottom of the hopper is equipped with an ash discharge valve. Near the bottom of the hopper, an anti-bridging assembly is provided. Above the filter assembly, a leak-sealing assembly is provided. The leak-sealing assembly includes a leak-sealing frame. The top of the leak-sealing frame is equipped with a sealing cover for sealing and nesting with the top of the supporting mesh frame. An electromagnetic clutch is provided at the top center of the sealing cover. A wiring mesh is provided on the top cover for arranging the electrical connection wires of the electromagnetic clutch. A solar photovoltaic device is provided in the dust removal station to provide power to the electromagnetic clutch.

[0007] Preferably, the dust removal station is equipped with a fluorescent agent spraying device distributed near the output end of the gas collection system. The fluorescent agent spraying device includes a nozzle and a spray pipe. The interior of the housing is equipped with a fluorescent detector for detecting the fluorescent agent, and the control terminal of the fluorescent detector is equipped with a controller.

[0008] Preferably, the electromagnetic clutch includes an armature post fixedly disposed at the center of the top of the sealing cover, a hollow iron core nested and fitted to the outside of the armature post, a coil disposed on the hollow iron core, the hollow iron core including a center section and a shoulder section, an upper insulating cover and a lower insulating cover respectively disposed at the top and bottom of the shoulder, and an assembly tube for assembling the hollow iron core, the upper insulating cover and the lower insulating cover disposed at the bottom of the top cover, the assembly tube being disposed at the center of the wiring network.

[0009] Preferably, the top cover is provided with a through hole corresponding to the center of the assembly tube, the top of the armature post is provided with an assembly pull rope that mates with the through hole, and the end of the assembly pull rope is provided with a counterweight.

[0010] Preferably, the bottom of the plugging frame is provided with a conical opening, and the distance from the conical opening to the top of the sealing cap is greater than the distance from the orifice plate to the top cover.

[0011] Preferably, the housing is provided with a blowing device, which includes an air tank. The housing is provided with a plurality of blowing pipes that communicate with the air tank. The blowing pipes and the leak-sealing components are distributed at intervals. The blowing pipes are provided with a plurality of pairs of blowing holes that are evenly distributed along their length direction. The blowing holes are inclined toward the interior of the filter components.

[0012] Preferably, the support frame includes a bag-supporting section, the top of which is provided with a support section that mates with the top of the filter bag. A support cylinder is provided on the support section, and the top of the support cylinder is provided with a lip that nests with a sealing cap. A pair of blow-off seats are provided on the side of the support cylinder, and the blow-off seats are provided with channels that are inclined toward the center of the filter bag. The channels correspond one-to-one with the blow-off holes.

[0013] Preferably, the anti-bridging assembly includes an inverted T-shaped rod, the top of which is provided with a perforated plate. The perforated plate has multiple radially staggered sliding openings, and a mortar-applying rope is provided in each sliding opening. The top of the mortar-applying rope is provided with an angular sliding plate, and the bottom of the mortar-applying rope is provided with a connector. The inner wall of the funnel is provided with multiple connecting pipes that correspond one-to-one with the connectors. The sides of the connecting pipes and connectors are provided with threaded holes, and the threaded holes are used to install lock heads.

[0014] Preferably, a heat exchange device is provided on the output path of the gas collection system. The heat exchange device includes a water tank, which is provided with an air inlet, an air outlet, a water inlet, and a water outlet. Inside the water tank, there are an air inlet header and an air outlet header connected to the air inlet and the air outlet, respectively. At least three heat exchange coils are provided between the air inlet header and the air outlet header.

[0015] Preferably, the heat exchange coil includes multiple U-shaped sections connected vertically in sequence, and the end of the bottommost U-shaped section is provided with a riser pipe that connects to the outlet header pipe from bottom to top.

[0016] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0017] The automated dust removal equipment provided by this invention for the smelting of white fused alumina utilizes an anti-bridging component to improve the ash discharge efficiency of the bag filter. The leak-sealing component, controlled by an electromagnetic clutch, can block the corresponding filter bag when leakage occurs, reducing the probability of dust escape. Furthermore, a solar photovoltaic device provides power to the electromagnetic clutch, preventing the leak-sealing frame from arbitrarily closing the corresponding filter component. This device is rationally designed, facilitates ash discharge, and allows for timely detection of filter bag damage and the implementation of leak-sealing measures, thus improving the environmental performance and overall utilization rate of the equipment, making it suitable for large-scale promotion. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of an automated dust removal device for the smelting process of white corundum material provided in this embodiment;

[0020] Figure 2 An isometric view of the internal structure of a bag filter provided in an embodiment;

[0021] Figure 3 A front view of the internal structure of a bag filter provided in an embodiment;

[0022] Figure 4 An assembly drawing of the filter bag and support frame provided for an embodiment;

[0023] Figure 5 An assembly diagram of the leak-sealing assembly provided for an embodiment;

[0024] Figure 6 A cross-sectional view of the internal structure of a bag filter provided in an embodiment;

[0025] Figure 7 for Figure 6 Enlarged schematic diagram of structure A in the middle;

[0026] Figure 8 This is a schematic diagram of the inlet header, outlet header, and heat exchange coils.

[0027] Figure 9 A perspective view of the anti-bridging component provided in the embodiment;

[0028] Figure 10 A top view of the anti-bridging assembly provided in the embodiment;

[0029] In the above figures:

[0030] 1. Air collection system; 2. Baghouse dust collector; 21. Top cover; 22. Housing; 23. Funnel; 24. Perforated plate; 25. Filter assembly; 251. Filter bag; 252. Support frame; 2521. Bag support section; 2522. Support section; 2523. Support cylinder; 2524. Lip; 2525. Pulse jet base; 2526. Channel; 26. Ash discharge valve; 27. Assembly pipe; 3. Dust collector fan; 4. Dust collector flue; 5. Anti-bridging assembly; 51. Inverted T-bar; 52. Tube sheet; 53. Sliding port; 54. Ash discharge rope; 55. Slide plate; 56. Connector; 57. Threaded hole; 6. Leak sealing assembly; 61. Leak sealing frame; 62. Sealing cover; 63. Electromagnetic clutch; 6 31. Armature post; 632. Hollow iron core; 633. Coil; 634. Upper insulating cover; 635. Lower insulating cover; 64. Wiring network; 65. Assembly pull rope; 66. Counterweight; 67. Conical mouth; 7. Solar photovoltaic device; 8. Fluorescent agent spraying equipment; 81. Nozzle; 82. Spray pipe; 9. Fluorescence detector; 10. Spraying device; 101. Gas tank; 102. Spray pipe; 103. Spray hole; 11. Heat exchange device; 111. Air inlet; 112. Air outlet; 113. Water inlet; 114. Water outlet; 115. Air inlet header; 116. Air outlet header; 117. Heat exchange coil; 1171. U-shaped section; 1172. Riser pipe. Detailed Implementation

[0031] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0032] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways than those described herein, and therefore the invention is not limited to the specific embodiments disclosed in the following specification.

[0033] Examples, such as Figures 1-10As shown, the automated dust removal equipment for the smelting process of white fused alumina provided by the present invention includes a gas collection system 1. A dust removal station is set in the output direction of the gas collection system 1. The dust removal station includes multiple bag filters 2. A dust removal fan 3 and a dust removal flue 4 are set on the discharge side of the bag filters 2. The bag filters 2 include a top cover 21, a box body 22 and a funnel 23 arranged sequentially from top to bottom. A perforated plate 24 is set inside the box body 22. Multiple filter components 25 are set on the perforated plate 24. The filter components 25 include filter bags 251 and supporting mesh frames 252. An ash discharge valve 26 is set at the bottom of the funnel 23. The gas collection system 1 includes a gas collection hopper, a gas collection flue and a conveying flue. The gas collection hopper is connected to the white fused alumina smelting equipment. The gas collection system 1 can transport the waste gas and the dust it carries to the dust removal station. The filter bag 251 of the filter assembly 25 is provided with an elastic retaining ring at the top that can be engaged with the perforated plate 24, and the support frame 252 is used to open up the filter bag 251 to prevent the filter bag 251 from being flattened by the dust removal fan 3.

[0034] To enable online monitoring of filter bag 251 leakage, the dust collection station provided by this invention is equipped with a fluorescent agent spraying device 8 distributed near the output end of the gas collection system 1. The fluorescent agent spraying device 8 includes a nozzle 81 and a spray pipe 82. A fluorescent detector 9 for detecting fluorescent agent is installed inside the housing 22, and a controller is installed at the control end of the fluorescent detector 9. The fluorescent agent spraying device 8 periodically injects fluorescent agent into the conveying flue of the gas collection system 1 as a tracer to distinguish it from dust. The fluorescent detector 9 can detect whether fluorescent agent directly enters the space above the bag filter 251 from the filter bag 251. The location where the fluorescent agent is concentrated is the location of the leaking filter bag 251. The controller collects the information monitored by the fluorescent detector 9 and basically delineates the scope of the filter bag 251 malfunction, identifying one or more filter components 25.

[0035] Based on this, in order to improve the ash discharge performance of this equipment, the funnel 23 provided by this invention is provided with an anti-bridging component 5 near its bottom. The anti-bridging component 5 can reduce the probability of bridging at the position of the funnel 23, which is beneficial to improving the ash discharge efficiency of the bag filter 2 and improving the dust removal performance of the dust removal station. Furthermore, in order to improve the dust removal performance of this equipment, a leak-sealing component 6 is provided above the filter component 25 provided by this invention. The leak-sealing component 6 includes a leak-sealing frame 61. The top of the leak-sealing frame 61 is provided with a sealing cover 62 for sealing and nesting with the top of the supporting mesh frame 252. An electromagnetic clutch 63 is provided at the top center of the sealing cover 62. A wiring mesh 64 is provided on the top cover 21. The wiring mesh 64 is used to arrange the electrical connection wires of the electromagnetic clutch 63. A solar photovoltaic device 7 is provided in the dust removal station. The solar photovoltaic device 7 can be uniformly installed on the top of the bag filter 2. The solar photovoltaic device 7 is used to provide power to the electromagnetic clutch 63. When the plugging bracket 61 is at the upper dead point, the highest point of its bracket hole is higher than the highest point of the filter assembly 25, so it can ensure that the filtered gas can continuously pass through the corresponding filter assembly 25. When the plugging bracket 61 is at the lower dead point, the filter assembly 25 is closed, and the filter assembly 25 no longer carries exhaust gas.

[0036] Specifically, the electromagnetic clutch 63 is electrically connected to the control center of the dust removal station. Each electromagnetic clutch 63 can control the action of its corresponding plugging component 6. For example, if the filter component 25 is identified as faulty by the controller, the electromagnetic clutch 63 will be de-energized, allowing the plugging frame 61 to be placed inside the filter component 25 from top to bottom and sit on top of the support frame 252. The sealing cover 62 will automatically nest with the filter frame, blocking the main air outlet of the filter component 25, thereby directly stopping the filter component 25 from filtering. The exhaust gas will then bypass and undergo particle filtration with other filter components 25, reducing the probability of dust escaping from the bag filter 2. This operation can be performed online without stopping the machine or requiring workers to risk burns from exhaust gas to replace the filter bag 251. Regarding the electromagnetic clutch 63, its power source can be the plant's power grid or the electrical energy stored in the solar photovoltaic device 7. The solar photovoltaic device 7 provides power to the electromagnetic clutch 63, ensuring that the leak-sealing frame 61 does not arbitrarily close the corresponding filter assembly 25 when the line or machine is stopped. Therefore, frequent lifting operations of the leak-sealing assembly 6 are unnecessary. Thus, the leak-sealing assembly 6, controlled by the electromagnetic clutch, can block the corresponding filter bag 251 when leakage occurs, facilitating timely detection of filter bag 251 damage and the implementation of leak-sealing measures, thereby improving the environmental performance and overall utilization rate of the equipment.

[0037] like Figures 5-7As shown, the electromagnetic clutch 63 provided by the present invention includes an armature post 631 fixedly disposed at the top center of the sealing cover 62. A hollow iron core 632 is disposed on the outer side of the armature post 631 and nested therewith. A coil 633 is disposed on the hollow iron core 632. The hollow iron core 632 includes a center section and a shoulder section. An upper insulating cover 634 and a lower insulating cover 635 are respectively disposed at the top and bottom ends of the shoulder. An assembly tube 27 for assembling the hollow iron core 632, the upper insulating cover 634 and the lower insulating cover 635 is disposed at the bottom of the top cover 21. The assembly tube 27 is disposed at the center of the grid of the wiring channel 64. The upper insulating cover 634 and the lower insulating cover 635 are used to limit the installation of the hollow iron core 632. In particular, the lower insulating cover 635 is used to assemble the non-moving part of the electromagnetic clutch 63 into the assembly tube 27 through a threaded connection. The gap formed by the upper insulating cover 634, the lower insulating cover 635, the hollow iron core 632, and the inner wall of the assembly tube 27 can be used to install the coil 633, and it also serves to insulate and heat-insulate the coil 633. The side of the assembly tube 27 can lead out the coil 633 and establish an electrical connection with the wire in the wiring network 64. The control end of the wire is electrically connected to the control center of the dust removal station, so that the control center can reasonably control all the electromagnetic clutches 63. The iron core of the electromagnetic clutch 63 and the armature post 631 adopt a hollow nesting method, which saves the limited space between the top cover 21 and the orifice plate 24, and also meets the reset control requirements of the leak-sealing component 6.

[0038] Furthermore, to facilitate the repositioning of the leak-sealing component 6 without opening the cover, the present invention provides a through hole on the top cover 21 corresponding to the center of the assembly tube 27. An assembly pull rope 65, which mates with the through hole, is provided at the top of the armature post 631, and a counterweight 66 is provided at the end of the assembly pull rope 65. By pulling the assembly pull rope 65, the armature post 631 can be raised to its nested position with the hollow iron core 632. The counterweight 66 prevents the assembly pull rope 65 from retracting below the top cover 21, thus preventing the operator from immediately repositioning it. It also prevents the assembly pull rope 65 from swinging excessively in an open outdoor space, avoiding knots and tangles. It should be noted that the fit between the assembly pull rope 65 and the through hole is small. Furthermore, the leak-sealing component 6 is generally positioned below the lower insulating cover 635, or the counterweight 66 can be pulled to the top of the through hole by the leak-sealing frame 61 and block the through hole. Therefore, no significant dust leakage will occur at the through hole.

[0039] To improve the efficiency of the automatic descent of the plugging frame 61, the bottom of the plugging frame 61 provided by the present invention is provided with a conical opening 67 to prevent the bottom of the plugging frame 61 from getting stuck on the edge of the supporting mesh frame 252. To ensure that the plugging frame 61 does not detach from the hole, the distance from the conical opening 67 of the plugging frame 61 to the top of the sealing cover 62 is greater than the distance from the perforated plate 24 to the top cover 21. In this way, the plugging frame 61 is in its original position on the predetermined descent path, and adjacent plugging frames 61 will not interfere with each other.

[0040] To improve the dust removal performance of the bag filter 2, the housing 22 provided by this invention is equipped with a jet-blowing device 10. The jet-blowing device 10 includes an air tank 101. Multiple jet-blowing pipes 102 communicating with the air tank 101 are arranged inside the housing 22. The jet-blowing pipes 102 and the sealing component 6 are spaced apart. Multiple pairs of jet-blowing holes 103 are evenly distributed along the length of each jet-blowing pipe 102. The two jet-blowing holes 103 in the same pair are arranged in an inverted V-shape, and the jet-blowing holes 103 are inclined towards the interior of the filter component 25. By setting the jet-blowing device 10, gas can be pulsed out from the jet-blowing holes 103 to back-blow the filter bag 251, achieving the purpose of periodic dust removal, reducing the probability of filter bag 251 clogging, and avoiding excessive internal resistance of the equipment, which would increase the system's energy consumption.

[0041] The existing jet-blowing device 10 is generally positioned directly opposite the filter bag 251. Considering that the leak-sealing component 6 of this device occupies the original installation position of the jet-blowing device 10, the supporting mesh frame 252 provided by this invention includes a bag-supporting section 2521. The top of the bag-supporting section 2521 is provided with a supporting section 2522 that cooperates with the top of the filter bag 251. A supporting cylinder 2523 is provided on the supporting section 2522. The top of the supporting cylinder 2523 is provided with a lip 2524, which is nested with the sealing cap 62. A pair of jet-blowing seats 2525 are provided on the side of the supporting cylinder 2523. The jet-blowing seats 2525 are provided with channels 2526 inclined towards the center of the filter bag 251. The channels 2526 correspond one-to-one with the jet-blowing holes 103. In this way, the jet-blowing device 10 can inject pulse air pressure into the filter component 25 at a V-shaped jet-blowing angle to achieve the purpose of back-blowing dust removal. Regarding the supporting mesh frame 252, its supporting cylinder 2523 is an extension of the original structure. A blower seat 2525 with openings 2526 is designed on its side, providing a reasonable spray path for the blower device 10 and also allowing for better nesting with the sealing cover 62, thus achieving leak sealing. After the leak-sealing component 6 is lowered, its hollowed-out portion is below the lowest point of the opening 2526, effectively intercepting the flow in the opening 2526. Therefore, after the filter component 25 passively seals the leak, there will be no significant dust escape in the direction of the corresponding blower hole 103.

[0042] To improve the working performance of the anti-bridging component 5, the anti-bridging component 5 provided by the present invention includes an inverted T-shaped rod 51. A perforated plate 52 is provided at the top of the inverted T-shaped rod 51. A plurality of radially staggered sliding openings 53 are provided on the perforated plate 52. A mortar-beating rope 54 is provided in the sliding opening 53. The mortar-beating rope 54 can be a steel rope or a discarded cable rope. The cable rope is heat-resistant and tensile-resistant. An angular sliding plate 55 is provided at the top of the mortar-beating rope 54. A connector 56 is provided at the bottom of the mortar-beating rope 54. A plurality of connecting pipes corresponding one-to-one with the connectors 56 are provided on the inner wall of the funnel 23. Threaded holes 57 are provided on the sides of the connecting pipes and the connectors 56. Lock heads are installed in the threaded holes 57. The locking head is used to fix the connecting pipe and the connector 56, while the top of the dust-discharging rope 54 has limited swing conditions. By staggering adjacent dust-discharging ropes 54, the dust-discharging angle of all dust-discharging ropes 54 in space can be increased, which is beneficial to improving the overall dust-discharging effect. The anti-bridging component 5 provided by the present invention can make full use of the exhaust gas power input to the bag filter 2. The exhaust gas power can act on the slide plate 55, causing the slide plate 55 to carry the top of the dust-discharging rope 54 to move back and forth at an irregular frequency along the sliding port 53, which plays a role in stirring the dust entering its beating range. Especially when the exhaust gas power is large, the anti-bridging capability of the anti-bridging component 5 is stronger.

[0043] To recover heat energy from the white corundum smelting workshop, the gas collection system 1 provided by this invention is equipped with a heat exchange device 11 along its output path. The heat exchange device 11 includes a water tank, which has an inlet 111, an outlet 112, a water inlet 113, and a water outlet 114. Inside the water tank are an inlet header 115 and an outlet header 116, respectively connected to the inlet 111 and outlet 112. At least three heat exchange coils 117 are arranged between the inlet header 115 and outlet header 116. By strategically arranging multiple heat exchange coils 117, the waste gas can effectively exchange heat within the heat exchange device 11. Since the heat exchange is dry, it prevents the filter bag 251 from becoming damp and shortening its service life. The hot water obtained from the heat exchange device 11 can then enter workshops requiring hot water and some heating pipelines.

[0044] Furthermore, the heat exchange coil 117 provided by the present invention includes multiple U-shaped sections 1171 connected vertically in sequence. The end of the bottommost U-shaped section 1171 is provided with a riser pipe 1172 that connects from bottom to top to the outlet header pipe. In this way, the exhaust gas passes through all the U-shaped sections 1171 under pressure from top to bottom, which helps to improve its heat exchange performance with the heat exchange medium in the heat exchange device 11. Finally, it enters the outlet header pipe 116 from the riser pipe 1172 and then enters the bag filter 2. While recovering heat energy, it helps to ensure the filtration performance and actual service life of the bag filter 2.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. An automated dust removal device for the smelting of white fused alumina materials, comprising a gas collection system, wherein a dust removal station is arranged in the output direction of the gas collection system, the dust removal station includes multiple bag filters, a dust removal fan and a dust removal flue are arranged on the discharge side of the bag filters, the bag filters include a top cover, a housing and a funnel arranged sequentially from top to bottom, a perforated plate is arranged inside the housing, multiple filter components are arranged on the perforated plate, the filter components include filter bags and supporting mesh frames, and an ash discharge valve is arranged at the bottom of the funnel, characterized in that... The funnel has an anti-bridging component near its bottom. A leak-sealing component is located above the filtering component. The leak-sealing component includes a leak-sealing frame. A sealing cover is located on top of the leak-sealing frame to seal and nest with the top of the supporting mesh frame. An electromagnetic clutch is located at the center of the top of the sealing cover. A wiring network is provided on the top cover for arranging the electrical connection wires of the electromagnetic clutch. A solar photovoltaic device is installed in the dust removal station to provide power to the electromagnetic clutch. The electromagnetic clutch includes an armature post fixedly located at the center of the top of the sealing cover. A hollow iron core is nested and fitted to the outside of the armature post. A coil is located on the hollow iron core. The hollow iron core includes a center section and a shoulder section. An upper insulating cover and a lower insulating cover are respectively located at the top and bottom of the shoulder. An assembly tube for assembling the hollow iron core, the upper insulating cover, and the lower insulating cover is located at the center of the wiring network.

2. The automated dust removal equipment for the smelting process of white fused alumina materials according to claim 1, characterized in that, The dust removal station is equipped with fluorescent agent spraying devices distributed near the output end of the gas collection system. The fluorescent agent spraying devices include nozzles and spray pipes. The interior of the housing is equipped with a fluorescent detector for detecting fluorescent agents, and the control terminal of the fluorescent detector is equipped with a controller.

3. The automated dust removal equipment for the smelting process of white fused alumina materials according to claim 2, characterized in that, The top cover is provided with a through hole corresponding to the center of the assembly tube, and the top of the armature column is provided with an assembly pull rope that mates with the through hole, and the end of the assembly pull rope is provided with a counterweight.

4. The automated dust removal equipment for the smelting process of white corundum materials according to claim 1 or 3, characterized in that, The bottom of the plugging frame is provided with a conical opening, and the distance from the conical opening to the top of the sealing cover is greater than the distance from the orifice plate to the top cover.

5. The automated dust removal equipment for the smelting process of white fused alumina materials according to claim 1, characterized in that, The housing is equipped with a blowing device, which includes an air tank. The housing is equipped with multiple blowing pipes that communicate with the air tank. The blowing pipes and the leak-sealing components are distributed at intervals. The blowing pipes are equipped with multiple pairs of blowing holes that are evenly distributed along their length. The blowing holes are inclined towards the inside of the filter components.

6. The automated dust removal equipment for the smelting process of white fused alumina materials according to claim 5, characterized in that, The support frame includes a bag support section. The top of the bag support section is provided with a support section that cooperates with the top of the filter bag. A support cylinder is provided on the support section. The top of the support cylinder is provided with a lip. The lip is nested with a sealing cap. A pair of blow-off seats are provided on the side of the support cylinder. The blow-off seats are provided with channels that are inclined toward the center of the filter bag. The channels correspond one-to-one with the blow-off holes.

7. The automated dust removal equipment for the smelting process of white fused alumina materials according to claim 1, characterized in that, The anti-bridging component includes an inverted T-shaped rod, with a perforated plate at the top. The perforated plate has multiple radially staggered sliding openings, each containing a mortar-applying rope. The top of the mortar-applying rope has an angular sliding plate, and the bottom of the rope has a connector. The inner wall of the funnel has multiple connecting pipes corresponding to the connectors. The sides of the connecting pipes and connectors are provided with threaded holes for installing lock heads.

8. The automated dust removal equipment for the smelting process of white fused alumina materials according to claim 1, characterized in that, A heat exchange device is provided on the output path of the gas collection system. The heat exchange device includes a water tank. The water tank is provided with an air inlet, an air outlet, a water inlet, and a water outlet. Inside the water tank, there are an air inlet header and an air outlet header connected to the air inlet and the air outlet, respectively. At least three heat exchange coils are provided between the air inlet header and the air outlet header.

9. The automated dust removal equipment for the smelting process of white fused alumina materials according to claim 8, characterized in that, The heat exchange coil includes multiple U-shaped sections connected vertically, with a riser pipe connected from bottom to top to the end of the bottommost U-shaped section.

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