Automatic dust removal equipment in white corundum material smelting process

Abstract

The invention belongs to the field of environmental protection equipment, and provides automatic dust removal equipment in the white corundum material smelting process, the automatic dust removal equipment comprises a gas collection system, a bag-type dust remover, a dust removal fan and a dust removal flue, the bag-type dust remover comprises a top cover, a box body and a funnel which are sequentially arranged from top to bottom, a pore plate is arranged in the box body, a plurality of filter assemblies are arranged on the pore plate, and the filter assemblies are arranged in the box body. The filtering assembly comprises a filtering bag and a supporting net rack, a dust discharging valve is arranged at the bottom of the funnel, an anti-bridging assembly is arranged at the position, close to the bottom of the funnel, of the funnel, a leaking stoppage assembly is arranged above the filtering assembly and comprises a leaking stoppage frame, a sealing cover, an electromagnetic clutch and an electric connecting wire, and a solar photovoltaic device is arranged in the dust removal station. The solar photovoltaic device is used for providing electric energy for the electromagnetic clutch. The device is reasonable in design, facilitates dust discharging, facilitates timely finding of damage of the filter bag and adoption of leaking stoppage measures, facilitates improvement of the environmental protection performance and the comprehensive utilization rate of equipment, and is suitable for large-scale popularization.

Description

Technical Field

[0001] The present invention belongs to the field of environmental protection equipment, and particularly relates to an automatic dust removal device during the smelting process of white fused alumina materials. Background Art

[0002] White fused alumina is an artificial abrasive, with the main component being aluminum oxide, having a content of over 99%, and containing a small amount of components such as 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, etc. Among them, a large amount of dust is generated during the smelting process and enters the emission channel along with the waste gas, and purification treatment must be carried out to meet environmental protection requirements.

[0003] Currently, in order to ensure the purification efficiency, a gas collection system is generally set up and connected to the dust removal equipment. Existing dust removal equipment usually includes cyclone dust collectors, bag dust collectors, and electrostatic precipitators, etc. In particular, the application scale of bag dust collectors in white fused alumina factories is the largest, such as a dust removal device for white fused alumina production disclosed in CN208426820U, a bag dust removal device for processing and producing white fused alumina disclosed in CN202322920659.6, etc. However, the problems existing in most bag dust removal equipment are that ash accumulation and bridging may occur at the bottom of the dust collector funnel, affecting the ash discharge efficiency; furthermore, when the filter bag is damaged, it cannot be detected in time and positive measures are not taken, resulting in the situation that the dust removal system fails to meet the standards and affecting the air environment.

[0004] The existing patent CN202420882309.7 discloses a dust removal controller, including: a main processor, a power supply module, a pulse drive module, an analog quantity acquisition module, and a digital quantity input acquisition module; the main processor is respectively connected to the power supply module, the pulse drive module, the communication module, the analog quantity acquisition module, and the digital quantity input acquisition module; the pulse drive module is respectively connected to a vibrator, a blow spray valve, and an offline valve, and the vibrator, the blow spray valve, and the offline valve are arranged in the dust removal chamber; the analog quantity acquisition module is connected to a leaky bag detection device; the digital quantity input acquisition module is connected to a fluorescence detector; the fluorescence detector is arranged in the dust removal chamber. This device can detect the damage of the filter bag in real time online, improve the positioning speed of the damaged filter bag, and can promptly command personnel to replace the filter bag. However, for the timing of replacing the filter bag, generally, it is necessary to stop the machine for replacement. Especially for the dust and waste gas in the white fused alumina workshop carrying relatively high heat, the measure of replacing the filter bag in real time is also unreasonable. Summary of the Invention

[0005] In view of the technical problems existing in the above-mentioned environmental protection dust removal equipment, the present invention provides a dust removal automation equipment in the smelting process of white fused alumina materials, which has a reasonable design, is convenient for ash discharge, is convenient for timely detecting the damage of filter bags and taking plugging measures, and is beneficial to improving the environmental protection performance and comprehensive utilization rate of the equipment.

[0006] To achieve the above object, the technical solution adopted by the present invention is that the dust removal automation equipment in the smelting process of white fused alumina materials provided by the present invention includes a gas collection system, and a dust removal station is arranged in the output direction of the gas collection system. The dust removal station includes a plurality of bag filters. A dust removal fan and a dust removal flue are arranged on the discharge side of the bag filter. The bag filter includes a top cover, a box body and a funnel arranged in sequence from top to bottom. An orifice plate is arranged inside the box body, and a plurality of filter components are arranged on the orifice plate. The filter component includes a filter bag and a support wire frame. A dust discharge valve is arranged at the bottom of the funnel, and an anti-bridging component is arranged at a position near the bottom of the funnel. A plugging component is arranged above the filter component. The plugging component includes a plugging frame. A sealing cover for sealingly nesting with the top of the support wire frame is arranged at the top of the plugging frame. An electromagnetic clutch is arranged at the center of the top of the sealing cover. A wiring network channel is arranged on the top cover, and the wiring network channel is used to arrange the electrical connection wires of the electromagnetic clutch. A solar photovoltaic device is arranged in the dust removal station, and the solar photovoltaic device is used to provide electric energy for the electromagnetic clutch.

[0007] Preferably, a fluorescent agent spraying device is arranged at the dust removal station and is distributed near the output end of the gas collection system. The fluorescent agent spraying device includes a nozzle and a spray pipe. A fluorescent detector for detecting the fluorescent agent is arranged inside the box body, and a controller is arranged at the control end of the fluorescent detector.

[0008] Preferably, the electromagnetic clutch includes an armature column fixedly arranged at the center of the top of the sealing cover. A hollow iron core nested and matched with the armature column is arranged outside the armature column. A coil is arranged on the hollow iron core. The hollow iron core includes a central section and a shoulder section. Upper and lower insulating covers are respectively arranged at the top and bottom of the shoulder. An assembly pipe for assembling the hollow iron core, the upper insulating cover and the lower insulating cover is arranged at the bottom of the top cover, and the assembly pipe is arranged at the grid center of the wiring network channel.

[0009] Preferably, a through hole corresponding to the center of the assembly pipe is arranged on the top cover. An assembly pull rope matched with the through hole is arranged at the top of the armature column, and a counterweight block is arranged at the end of the assembly pull rope.

[0010] Preferably, a conical opening is arranged at the bottom of the plugging frame, 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.

[0011] Preferably, a blowing device is provided on the box body. The blowing device includes an air tank. A plurality of blowing pipes communicating with the air tank are arranged inside the box body. The blowing pipes and the leak plugging assembly are arranged at intervals. A plurality of pairs of blowing holes evenly distributed along the length direction of the blowing pipes are arranged on the blowing pipes. The blowing holes are inclined towards the inside of the filtering assembly.

[0012] Preferably, the support grid includes a bag supporting section. A support section cooperating with the top of the filter bag is arranged at the top of the bag supporting section. A support cylinder is arranged on the support section. A lip is arranged at the top end of the support cylinder. The lip is nested and cooperated with the sealing cover. A pair of blowing seats are arranged on the side surface of the support cylinder. A hole passage inclined towards the center of the filter bag is arranged on the blowing seat. The hole passages correspond to the blowing holes one by one.

[0013] Preferably, the anti-bridging assembly includes an inverted T-shaped rod. A flower plate is arranged at the top of the inverted T-shaped rod. A plurality of radially staggered sliding openings are arranged on the flower plate. A dust beating rope is arranged in the sliding openings. A horn-shaped sliding plate is arranged at the top end of the dust beating rope. A connecting head is arranged at the bottom end of the dust beating rope. A plurality of connecting pipes corresponding to the connecting heads one by one are arranged on the inner wall of the funnel. Threaded holes are arranged on the side surfaces of the connecting pipe and the connecting head. Locking heads are used to be installed in the threaded holes.

[0014] Preferably, a heat exchange device is arranged on the output path of the gas collection system. The heat exchange device includes a water tank. An air inlet pipe opening, an air outlet pipe opening, a water inlet pipe opening and a water outlet pipe opening are arranged on the water tank. An air inlet main pipe and an air outlet main pipe respectively connected to the air inlet pipe opening and the air outlet pipe opening are arranged inside the water tank. At least 3 heat exchange coiled pipes are arranged between the air inlet main pipe and the air outlet main pipe.

[0015] Preferably, the heat exchange coiled pipe includes a plurality of U-shaped sections sequentially connected up and down. An ascending pipe connected from bottom to top to the air outlet main pipe is arranged at the end of the U-shaped section at the bottommost part.

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

[0017] The dust removal automation equipment during the smelting process of white corundum materials provided by the present invention utilizes the anti-bridging assembly to be beneficial to improving the ash discharging efficiency of the bag filter; the leak plugging assembly controlled by the electromagnetic clutch can plug the corresponding filter bag when the filter bag leaks, which is beneficial to reducing the escape probability of dust, and the electromagnetic clutch is powered by the solar photovoltaic device, so that the leak plugging frame will not randomly close the corresponding filtering assembly. The device is reasonably designed, convenient for ash discharging, convenient for timely discovering the damage of the filter bag and taking leak plugging measures, beneficial to improving the environmental protection performance and comprehensive utilization rate of the equipment, and suitable for large-scale popularization. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 Schematic diagram of the dust removal automation equipment during the smelting process of white fused alumina materials provided for the embodiment;

[0020] Figure 2 Axonometric view of the internal structure of the bag filter provided for the embodiment;

[0021] Figure 3 Front view of the internal structure of the bag filter provided for the embodiment;

[0022] Figure 4 Assembly drawing of the filter bag and the support grid provided for the embodiment;

[0023] Figure 5 Assembly drawing of the leak stoppage component provided for the embodiment;

[0024] Figure 6 Cross-sectional view of the internal structure of the bag filter provided for the embodiment;

[0025] Figure 7 For Figure 6 Enlarged schematic diagram of the A structure in

[0026] Figure 8 Schematic diagram of the intake main pipe, outlet main pipe and heat exchange coiled pipe;

[0027] Figure 9 Stereogram of the anti-bridging component provided for the embodiment;

[0028] Figure 10 Top view of the anti-bridging component provided for the embodiment;

[0029] In the above figures:

[0030] 1. Gas collection system; 2. Bag filter; 21. Top cover; 22. Box; 23. Funnel; 24. Orifice plate; 25. Filter assembly; 251. Filter bag; 252. Support grid; 2521. Bag support section; 2522. Support section; 2523. Support cylinder; 2524. Lip; 2525. Injection seat; 2526. Channel; 26. Ash discharge valve; 27. Assembly pipe; 3. Dust removal fan; 4. Dust removal flue; 5. Anti-bridging assembly; 51. Inverted T-bar; 52. Flower plate; 53. Sliding port; 54. Ash removal rope; 55. Slide plate; 56. Connector; 57. Threaded hole; 6. Leakage plugging assembly; 61. Leakage plugging frame; 62. Sealing cover; 63. Electromagnetic clutch; 64. 31. Armature column; 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. Nozzle; 9. Fluorescence detector; 10. Spraying device; 101. Gas tank; 102. Spraying pipe; 103. Spraying hole; 11. Heat exchange device; 111. Air inlet pipe; 112. Air outlet pipe; 113. Water inlet pipe; 114. Water outlet pipe; 115. Air inlet main pipe; 116. Air outlet main pipe; 117. Heat exchange coil; 1171. U-shaped section; 1172. Riser. DETAILED DESCRIPTION

[0031] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other unless they conflict. For the convenience of description, the words "upper", "lower", "left", and "right" appearing below only indicate the upper, lower, left, and right directions consistent with the drawings themselves and do not limit the structure.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Examples, such as Figures 1-10As shown, the dust removal automation equipment provided by the present invention during the smelting process of white corundum materials includes an air collection system 1. A dust removal station is provided in the output direction of the air collection system 1. The dust removal station includes multiple bag dust collectors 2. The discharge side of the bag dust collectors 2 is provided with a dust removal fan 3 and a dust removal flue 4. The bag dust collectors 2 include a top cover 21, a box body 22 and a funnel 23 arranged in sequence from top to bottom. The interior of the box body 22 is provided with a perforated plate 24. The perforated plate 24 is provided with multiple filter components 25. The filter components 25 include filter bags 251 and a supporting grid 252. The bottom of the funnel 23 is provided with an ash discharge valve 26. The air collection system 1 includes an air collection hopper, an air collection flue and a conveying flue. The air collection hopper is connected to the white corundum smelting equipment. The air collection system 1 can convey the exhaust gas and the dust it carries to the dust removal station. An elastic clamping ring that can be engaged with the orifice plate 24 is provided on the top of the filter bag 251 of the filter assembly 25, and the supporting grid 252 is used to prop up the filter bag 251 to prevent the filter bag 251 from being flattened by the dust removal fan 3.

[0034] In order to be able to monitor the leakage of the filter bag 251 online, the dust removal station provided by the present invention is provided 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 nozzle 82. A fluorescent detector 9 for detecting the fluorescent agent is provided inside the box 22, and a controller is provided at the control end of the fluorescent detector 9. The fluorescent agent spraying device 8 injects fluorescent agent into the conveying flue of the gas collection system 1 at regular intervals as a tracer to distinguish it from dust. The fluorescent detector 9 can detect whether there is fluorescent agent directly entering the upper space of the bag filter 2 from the filter bag 251. The location where the fluorescent agent appears is the location of the leaking filter bag 251. The controller collects the situation monitored by the fluorescent detector 9, and basically delineates the range of the filter bag 251 failure, locking one or more filter components 25.

[0035] On this basis, in order to improve the ash discharging performance of this device, the funnel 23 provided by the present 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 discharging efficiency of the bag filter 2 and enhancing the dust removal performance of the dust removal station. Further, in order to improve the dust removal performance of this device, a leak plugging component 6 is provided above the filter component 25. The leak plugging component 6 includes a leak plugging frame 61. At the top of the leak plugging frame 61, there is a sealing cover 62 used for sealing and nesting with the top of the support wire frame 252. At the center of the top of the sealing cover 62, there is an electromagnetic clutch 63. On the top cover 21, there is a wiring duct 64 for arranging the electrical connection wires of the electromagnetic clutch 63. In the dust removal station, there is a solar photovoltaic device 7, which can be overall arranged on the top of the bag filter 2. The solar photovoltaic device 7 is used to provide electrical energy for the electromagnetic clutch 63. Among them, when the leak plugging frame 61 is at the upper dead center position, the highest point of its frame hole is higher than the highest point of the filter component 25, so it can ensure that the filtered gas continuously passes through the corresponding filter component 25. When the leak plugging frame 61 is at the lower dead center position, it closes the filter component 25 and the filter component 25 no longer passes the waste 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 the corresponding leak plugging component 6. For example, for the filter component 25 designated as faulty by the controller, when the electromagnetic clutch 63 is powered off, the leak plugging frame 61 can be sleeved inside the filter component 25 from top to bottom and sit on the top of the support wire frame 252. The sealing cover 62 will automatically nest with the filter wire frame, blocking the main gas outlet diameter of the filter component 25, so as to directly stop the filtering behavior of the filter component 25. The waste gas will bypass and conduct particle filtration with other filter components 25, reducing the probability of dust escaping from the bag filter 2. And this operation process can be carried out online, without the need for shutdown operation, nor does it require workers to take the risk of being burned by waste gas to replace the filter bag 251. Regarding the electromagnetic clutch 63, its power supply can be the factory area power grid or the electrical energy stored in the solar photovoltaic device 7. The solar photovoltaic device 7 provides electrical energy for the electromagnetic clutch 63, so that the leak plugging frame 61 will not randomly close the corresponding filter component 25 during line stop or shutdown, so there is no need to frequently lift the leak plugging component 6. Therefore, the leak plugging component 6 controlled by electromagnetic clutch can block the corresponding filter bag 251 when the filter bag 251 leaks, which is convenient for timely discovering the damage of the filter bag 251 and taking leak plugging measures, and is beneficial to improving the environmental protection performance and comprehensive utilization rate of the equipment.

[0037] Such as Figures 5-7As shown in the figure, the electromagnetic clutch 63 provided by the present invention includes an armature column 631 fixedly arranged at the center of the top of the sealing cover 62. A hollow iron core 632 nested and matched with the armature column 631 is arranged outside the armature column 631. A coil 633 is arranged on the hollow iron core 632. The hollow iron core 632 includes a central section and a shoulder section. An upper insulating cover 634 and a lower insulating cover 635 are respectively arranged at the top and bottom of the shoulder. An assembly pipe 27 for assembling the hollow iron core 632, the upper insulating cover 634 and the lower insulating cover 635 is arranged at the bottom of the top cover 21. The assembly pipe 27 is arranged at the grid center of the wiring duct 64. Among them, the upper insulating cover 634 and the lower insulating cover 635 are used for limiting and installing the hollow iron core 632. In particular, the non-moving part of the electromagnetic clutch 63 is assembled in the assembly pipe 27 by the lower insulating cover 635 in a threaded connection manner. The space formed by the upper insulating cover 634, the lower insulating cover 635, the hollow iron core 632 and the inner wall of the assembly pipe 27 can install the coil 633, and play an insulating and heat-insulating role for the coil 633. The side of the assembly pipe 27 can lead out the coil 633 and establish an electrical connection relationship with the wires in the wiring duct 64. The control end of the wires is electrically connected to the control center of the dust removal station, so that the control center can reasonably regulate all the electromagnetic clutches 63. The iron core of the electromagnetic clutch 63 and the armature column 631 adopt a hollow nesting method, on the one hand, to save the limited space between the top cover 21 and the hole plate 24, and on the other hand, for the reset control requirement of the plugging component 6.

[0038] Further, in order to facilitate the reset of the plugging component 6 without opening the cover, the present invention is provided with a perforation corresponding to the center of the assembly pipe 27 on the top cover 21. An assembly pull rope 65 matched with the perforation is arranged at the top of the armature column 631. A counterweight 66 is arranged at the end of the assembly pull rope 65. By pulling the assembly pull rope 65, the armature column 631 can be lifted to the position nested with the hollow iron core 632. The counterweight 66 can not only prevent the assembly pull rope 65 from retracting below the top cover 21, making it impossible for the staff to reset it immediately, but also can avoid the excessive swing of the assembly pull rope 65 in the outdoor open space of the equipment, and avoid the situation of the assembly pull rope 65 knotting and winding with each other. It should be noted that the matching gap between the assembly pull rope 65 and the perforation is small. Coupled with the fact that the plugging component 6 is generally located below the lower insulating cover 635, or the counterweight 66 can be pulled by the plugging frame 61 to the top surface of the perforation and block the perforation, so there will be no obvious dust leakage at the perforation.

[0039] To improve the efficiency of the automatic dropping of the plugging frame 61, a conical opening 67 is provided at the bottom of the plugging frame 61 provided by the present invention, which can avoid the situation where the bottom of the plugging frame 61 gets stuck on the edge of the support grid 252. To ensure that the plugging frame 61 has a perforation situation, 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 orifice plate 24 to the top cover 21. In this way, the plugging frame 61 is in the established descending path at its original position, and adjacent plugging frames 61 will not interfere with each other.

[0040] To improve the dust removal performance of the bag filter 2, a spraying device 10 is provided on the box body 22 provided by the present invention. The spraying device 10 includes an air tank 101. A plurality of spraying pipes 102 communicated with the air tank 101 are arranged inside the box body 22. The spraying pipes 102 are arranged at intervals with the plugging assembly 6. A plurality of pairs of spraying holes 103 evenly distributed along the length direction are arranged on the spraying pipes 102. The two spraying holes 103 of the same pair are arranged in an inverted V shape, and the spraying holes 103 are inclined towards the inside of the filtering assembly 25. By setting the spraying device 10, gas can be sprayed from the spraying holes 103 in a pulsed manner to backflush the filter bag 251 to achieve the purpose of regular dust cleaning, reduce the probability of blockage of the filter bag 251, and avoid excessive internal resistance of the equipment and increase the energy consumption of the system.

[0041] The existing spraying device 10 generally faces the filter bag 251 directly. Considering that the plugging assembly 6 of this equipment occupies the installation position of the original spraying device 10, correspondingly, the support grid 252 provided by the present invention includes a bag supporting section 2521. A supporting section 2522 that cooperates with the top of the filter bag 251 is provided at the top of the bag supporting section 2521. A supporting cylinder 2523 is provided on the supporting section 2522. A lip 2524 is provided at the top end of the supporting cylinder 2523. The lip 2524 is nested and cooperated with the sealing cover 62. A pair of spraying seats 2525 are provided on the side surface of the supporting cylinder 2523. A hole channel 2526 inclined towards the center of the filter bag 251 is provided on the spraying seat 2525. The hole channels 2526 correspond to the spraying holes 103 one by one. In this way, the spraying device 10 can inject pulsed air pressure into the inside of the filtering assembly 25 at a V-shaped spraying angle to achieve the purpose of backflush dust cleaning. Regarding the support grid 252, its support cylinder 2523 is the part of the original structure that is heightened. The spraying seats 2525 are designed on the side surface and the hole channels 2526 are opened, which not only provides a reasonable spraying path for the spraying device 10, but also can better complete the nested relationship with the sealing cover 62, thereby realizing plugging. After the plugging assembly 6 drops, the hollow part thereof is lower than the lowest point of the hole channel 2526, intercepting the hole channel 2526. Therefore, after the filtering assembly 25 is passively plugged, there will be no obvious dust escaping from the direction towards which the corresponding spraying holes 103 face.

[0042] In order 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 flower plate 52 is provided at the top of the inverted T-shaped rod 51. A plurality of radially staggered sliding ports 53 are provided on the flower plate 52. A caulking rope 54 is arranged in the sliding port 53. The caulking rope 54 can be a steel rope or a discarded cable rope. The cable rope is resistant to high temperature and tensile. A horn-shaped slide plate 55 is provided at the top end of the caulking rope 54, and a connector 56 is provided at the bottom end of the caulking rope 54. A plurality of connecting pipes corresponding to the connectors 56 one by one are provided on the inner wall of the funnel 23. Threaded holes 57 are provided on the sides of the connecting pipe and the connector 56, and lock heads are installed in the threaded holes 57. Among them, the lock head is used to fix the connecting pipe and the connector 56, and there are limited swinging conditions at the top end of the caulking rope 54; by staggeredly arranging adjacent caulking ropes 54, the caulking angles of all the caulking ropes 54 in space can be increased, which is beneficial to improving the overall ash stirring and caulking effects; the anti-bridging component 5 provided by the present invention can make full use of the waste gas power input into the bag filter 2. The waste gas power can act on the slide plate 55, so that the slide plate 55 drives the top end of the caulking rope 54 to reciprocate along the sliding port 53 at an irregular frequency, playing a role in stirring the dust entering its beating range. Especially when the waste gas power is large, the anti-bridging ability of the anti-bridging component 5 is stronger.

[0043] In order to recover the heat energy in the white fused alumina smelting workshop, a heat exchange device 11 is provided on the output path of the gas collection system 1 provided by the present invention. The heat exchange device 11 includes a water tank. An air inlet port 111, an air outlet port 112, a water inlet port 113 and a water outlet port 114 are provided on the water tank. An air inlet main pipe 115 and an air outlet main pipe 116 respectively connected to the air inlet port 111 and the air outlet port 112 are arranged inside the water tank. At least 3 heat exchange serpentine pipes 117 are arranged between the air inlet main pipe 115 and the air outlet main pipe 116. By overall arranging a plurality of heat exchange serpentine pipes 117, the waste gas can be effectively heat-exchanged in the heat exchange device 11, and the heat exchange method is dry, so the filter bag 251 will not be adhered with moisture and shorten its service life. The hot water heat-exchanged in the heat exchange device 11 can enter the workshops and some heat supply pipelines that need hot water.

[0044] Further, the heat exchange serpentine pipe 117 provided by the present invention includes a plurality of U-shaped sections 1171 connected in sequence up and down. An ascending pipe 1172 connected from bottom to top to the air outlet main pipe is provided at the end of the U-shaped section 1171 at the bottommost part. In this way, the waste gas passes through all the U-shaped sections 1171 against the pressure from top to bottom, which is beneficial to improving its heat exchange performance with the heat exchange medium in the heat exchange device 11, and finally enters the air outlet main pipe 116 through the ascending pipe 1172 and then enters the bag filter 2. While recovering the heat energy, it is beneficial to ensure the filtering performance and actual service life of the bag filter 2.

[0045] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any person skilled in the relevant art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. An automatic dust removal device during the smelting process of white fused alumina materials, including a gas collection system. A dust removal station is arranged in the output direction of the gas collection system. The dust removal station includes a plurality of bag filters. A dust removal fan and a dust removal flue are arranged on the discharge side of the bag filter. The bag filter includes a top cover, a box body, and a funnel arranged in sequence from top to bottom. A perforated plate is arranged inside the box body, and a plurality of filter components are arranged on the perforated plate. The filter component includes a filter bag and a support wire frame. A dust discharge valve is arranged at the bottom of the funnel, and it is characterized in that, The funnel is provided with an anti-bridging component near the bottom thereof, and a leak-plugging component is provided above the filter component. The leak-plugging component includes a leak-plugging frame, and a sealing cover is provided on the top of the leak-plugging frame for sealing and nesting with the top of the supporting grid. An electromagnetic clutch is provided at the top center of the sealing cover, and a wiring network is provided on the top cover. The wiring network is used to arrange the electrical connection lines of the electromagnetic clutch. A solar photovoltaic device is provided in the dust removal station, and the solar photovoltaic device is used to provide power for the electromagnetic clutch.

2. The dust removal automation equipment during the smelting process of white fused alumina materials according to claim 1, characterized in that, The dust removal station is provided 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 nozzle. A fluorescence detector for detecting the fluorescent agent is provided inside the box. The control end of the fluorescence detector is provided with a controller.

3. The dust removal automation equipment in the smelting process of white fused alumina materials according to claim 1 or 2, characterized in that, The electromagnetic clutch includes an armature column fixedly arranged at the top center of the sealing cover, a hollow iron core nested with the armature column is arranged on the outside of the armature column, a coil is arranged on the hollow iron core, the hollow iron core includes a center section and a shoulder section, the top and bottom ends of the shoulder are respectively provided with an upper insulating cover and a lower insulating cover, and the bottom of the top cover is provided with an assembly tube for assembling the hollow iron core, the upper insulating cover and the lower insulating cover, and the assembly tube is arranged in the grid center of the wiring network.

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

5. The dust removal automation equipment in the smelting process of white fused alumina materials according to claim 1 or 4, characterized in that, The bottom of the leak-proof frame is provided with a cone opening, and the distance from the cone opening to the top of the sealing cover is greater than the distance from the orifice plate to the top cover.

6. The dust removal automation equipment in the smelting process of white fused alumina materials according to claim 1, characterized in that, The box body is provided with a blowing device, which includes a gas tank. A plurality of blowing pipes connected to the gas tank are provided inside the box body. The blowing pipes are spaced apart from the leak-plugging assembly. The blowing pipes are provided with a plurality of pairs of blowing holes evenly distributed along their length direction, and the blowing holes are inclined toward the interior of the filter assembly.

7. The dust removal automation equipment during the smelting process of white fused alumina materials according to claim 6, characterized in that, The supporting grid includes a bag supporting section, the top of the bag supporting section is provided with a supporting section that cooperates with the top of the filter bag, the supporting section is provided with a supporting tube, the top of the supporting tube is provided with a lip, the lip is nested with the sealing cover, and a pair of blowing seats are provided on the side of the supporting tube, and the blowing seats are provided with channels inclined toward the center of the filter bag, and the channels correspond one-to-one to the blowing holes.

8. The dust removal automation equipment in the smelting process of white fused alumina materials according to claim 1, characterized in that, The anti-bridging component includes an inverted T-rod, a flower plate is provided on the top of the inverted T-rod, a plurality of radially staggered sliding openings are provided on the flower plate, a putty rope is provided in the sliding opening, an angular slide is provided on the top of the putty rope, a connecting head is provided on the bottom end of the putty rope, and a plurality of connecting pipes corresponding to the connecting heads are provided on the inner wall of the funnel, and threaded holes are provided on the sides of the connecting pipes and the connecting heads, and the threaded holes are used to install lock heads.

9. The dust removal automation equipment in 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, and an air inlet pipe port, an air outlet pipe port, a water inlet pipe port and a water outlet pipe port are arranged on the water tank. An air inlet main pipe and an air outlet main pipe respectively connected to the air inlet pipe port and the air outlet pipe port are arranged inside the water tank, and at least three heat exchange coiled pipes are arranged between the air inlet main pipe and the air outlet main pipe.

10. The dust removal automation equipment in the smelting process of white fused alumina materials according to claim 9, characterized in that, The heat exchange coiled pipe includes a plurality of U-shaped sections sequentially connected up and down, and a riser pipe connected from bottom to top to the air outlet main pipe is arranged at the end of the U-shaped section at the bottommost part.

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