Innocent treatment device for industrial waste gas

Abstract

The invention provides a harmless treatment device for industrial waste gas, which is applied to the technical field of industrial waste gas treatment devices, and is characterized by comprising a cyclone dust collector for removing a first type of dust particles; the cloth bag type dust collector is used for removing a second type of dust particles; the movable bag-type dust remover comprises a dust removal shell, a bag-type dust removal mechanism for filtering a second type of dust particles in waste gas, a movable dust removal mechanism for removing dust from the bag-type dust removal mechanism, and a dust collection box for collecting the dust particles removed by the movable dust removal mechanism; the VOC burner is used for burning volatile organic compounds in the waste gas; the emission chimney is connected with the VOC burner; compared with the prior art, the device has the technical effects that complex waste gas components are optimized and coupled through three technologies of mechanical dust removal, filtering dust removal and high-temperature oxidation, the purification efficiency is high, and the device is particularly suitable for treating industrial waste gas with complex components and high emission requirements.

Description

Technical Field

[0001] This invention relates to the field of industrial waste gas treatment equipment, and in particular to a harmless treatment device for industrial waste gas. Background Technology

[0002] Industrial waste gas is one of the main sources of environmental pollution today, especially in industries such as chemical, spraying, printing, semiconductor manufacturing, and metal processing. The waste gas emitted from these industries has a complex composition, often containing multiple harmful substances such as particulate matter and volatile organic compounds (VOCs). Among them, particulate matter (especially PM2.5 and smaller respirable particles) directly harms the human respiratory system and may carry toxic components such as heavy metals. VOCs can undergo photochemical reactions with nitrogen oxides under sunlight to generate ozone and secondary organic aerosols, resulting in enhanced atmospheric oxidation and smog pollution. Some benzene compounds and halogenated hydrocarbons also have strong carcinogenic, teratogenic, and mutagenic effects. Therefore, efficient purification of industrial waste gas and synergistic removal of dust and VOCs are urgent needs for current environmental protection and green manufacturing.

[0003] Currently, Chinese invention patent CN115582008A discloses a harmless treatment device for industrial waste gas treatment, which includes a mounting bracket, a filter frame, a waste gas collection mechanism, and an open flame purification mechanism. The mounting bracket is connected to a filter frame for filtering impurities in the waste gas. The mounting bracket is equipped with a waste gas collection mechanism for collecting waste gas in a centralized manner. The waste gas collection mechanism is equipped with an open flame purification mechanism for incinerating harmful substances in the waste gas.

[0004] However, existing traditional methods of dust removal and incineration of waste gas have limited effectiveness in purifying waste gas with complex components (such as a mixture of dust and VOCs), and are prone to secondary pollution problems. Summary of the Invention

[0005] The purpose of this invention is to provide a harmless treatment device for industrial waste gas, which has the advantage of being able to perform multi-stage treatment of waste gas, thereby achieving harmless treatment of industrial waste gas and meeting environmental emission standards.

[0006] To achieve the above and other related objectives, the present invention provides the following technical solution:

[0007] A device for the harmless treatment of industrial waste gas, comprising:

[0008] A cyclone dust collector is used to remove first-class dust particles. The cyclone dust collector is provided with an air intake and a first air outlet.

[0009] A mobile bag filter dust collector is used to remove second-type dust particles. The mobile bag filter dust collector includes a dust collection shell, a bag filter dust collection mechanism disposed inside the dust collection shell for filtering second-type dust particles in exhaust gas, a mobile cleaning mechanism disposed inside the dust collection shell for cleaning the bag filter dust collection mechanism, and a dust collection hopper disposed at the bottom of the dust collection shell for collecting the dust particles removed by the mobile cleaning mechanism.

[0010] The dust collector housing is provided with a second air inlet and a second air outlet, and the second air inlet is connected to the first air outlet.

[0011] A VOC burner is used to incinerate volatile organic compounds in waste gas; the VOC burner is provided with a third air inlet and a third air outlet, and the third air inlet and the second air outlet are connected by a first exhaust fan.

[0012] And an exhaust chimney connected to a VOC burner, wherein the third exhaust outlet is connected to the exhaust chimney via a second exhaust fan.

[0013] In one embodiment of the present invention, the bag filter mechanism includes a dust collector frame fixedly disposed within the dust collector housing and a plurality of bag filter components that are pulled out and mounted on the dust collector frame.

[0014] The bag filter assembly includes a dust collector support frame, a dust collector bag fitted on the dust collector support frame, and two fasteners located at both ends of the dust collector bag and snapped to the ends of the dust collector support frame.

[0015] Both of the aforementioned fasteners are provided with slots that match the two ends of the dust removal support frame; an air inlet is provided on the fastener near the side of the movable dust removal mechanism;

[0016] A vibrating plate that contacts the inner wall of the dust collector bag is fixedly installed in the middle of the dust collector support frame.

[0017] In one embodiment of the present invention, the mobile dust removal mechanism includes an air blowing plate slidably disposed in the dust removal housing, an air blowing assembly that provides an air source for the air blowing plate, a dust removal drive assembly that drives the air blowing plate to slide horizontally back and forth in the dust removal housing, a first sensor group that cooperates with the dust removal drive assembly to realize the intermittent movement of the air blowing plate, and a second sensor group that limits the sliding distance of the air blowing plate.

[0018] The air blowing plate is provided with an air blowing chamber, and the side wall of the air blowing plate is provided with an air blowing hole that communicates with the air blowing chamber.

[0019] In one embodiment of the present invention, the air blowing assembly includes an air blowing fan fixedly installed on the dust removal housing and a movable tube assembly with one end connected to the air blowing fan and the other end connected to the air blowing plate;

[0020] The movable tube assembly includes a fixed arc tube with one end connected to the air blower and fixedly installed on the dust collector housing, a movable arc tube rotatably disposed inside the fixed arc tube, and a flexible tube connected to the air blowing plate.

[0021] An electric slide valve is installed between the fixed arc tubes of the air blower box.

[0022] In one embodiment of the present invention, the dust removal drive assembly includes a servo motor fixedly mounted on the dust collector housing, a lead screw fixedly connected to the output shaft of the servo motor, and a mounting plate meshing with the lead screw and horizontally slidingly connected to the dust collector housing; the air blowing plate is fixedly mounted on the mounting plate.

[0023] The air blowing plate is equipped with rotatable guide rollers, and the dust removal housing is fixedly installed with guide rails that slide and cooperate with the guide rollers.

[0024] In one embodiment of the present invention, the first sensor group includes a first helical gear fixedly connected to the output shaft of a servo motor, a second helical gear meshing with the first helical gear, a gear plate fixedly connected to the second helical gear and rotatably connected to the dust collector housing, and a first sensor fixedly installed on the dust collector housing.

[0025] In one embodiment of the present invention, the second sensor group includes two second sensors respectively fixed on the dust removal housings at both ends of the lead screw and two second sensing plates respectively fixed on the mounting plate.

[0026] In one embodiment of the present invention, the VOC burner includes a combustion shell, a gas distribution mechanism, and a combustion head;

[0027] The combustion shell contains a heat storage chamber and a combustion chamber arranged sequentially from bottom to top. Several partitions are fixed inside the heat storage chamber to divide it into several fan-shaped cavities. The fan-shaped cavities are filled with ceramic heat storage bodies.

[0028] The burner head is installed inside the combustion chamber.

[0029] In one embodiment of the present invention, the gas distribution mechanism includes a gas distribution pipe and a gas distribution cavity, and each of the sector-shaped cavities is connected to a set of gas distribution cavities;

[0030] The gas distribution pipe includes an inlet pipe, an exhaust pipe, and a purge pipe, and each of the inlet pipe, exhaust pipe, and purge pipe is equipped with a control valve.

[0031] In one embodiment of the present invention, the gas distribution chamber includes an air inlet chamber connected to an air inlet pipe and a third air inlet, an exhaust chamber connected to an air outlet pipe and a third air outlet, and a purge chamber connected to a purge pipe and a purge fan.

[0032] As described above, the harmless treatment device for industrial waste gas according to the present invention has the following beneficial effects:

[0033] 1. Exhaust gas enters the cyclone dust collector through the first exhaust port. The first type of dust particles (large dust particles) collide with the inner wall of the cyclone dust collector under centrifugal force and fall along the inner wall, thus achieving preliminary dust removal. The pre-treated exhaust gas then undergoes further dust removal through a mobile bag filter. As the exhaust gas passes through the bag filter assembly, the second type of dust particles (small dust particles) are filtered onto the outer surface of the filter bags. The further filtered exhaust gas is then burned again in a VOC burner, thus burning the volatile organic compounds in the exhaust gas. This multi-stage treatment of exhaust gas achieves harmless treatment of industrial waste gas and meets environmental emission standards.

[0034] 2. In the mobile dust removal mechanism, when the air blowing plate blows air into the dust collector bag, it can blow off the dust on the outer surface of the dust collector bag. Furthermore, the vibration of the dust collector bag is enhanced by the vibrating plate, improving the dust removal effect. With the cooperation of the dust removal drive assembly and the first and second sensor groups, the air blowing plate can move intermittently, thus enabling the dust collector bags to be cleaned group by group. The air blowing plate is connected to the air blowing fan via a movable pipe assembly. The movable arc pipe assembly is rotatably set inside the fixed arc pipe, using a flexible pipe to connect the movable arc pipe and the air blowing plate, facilitating the horizontal and intermittent movement of the air blowing plate; thereby achieving the dust removal function of the dust collector bag.

[0035] 3. By combining the sector-shaped cavity, gas distribution pipe and control valve, the sector-shaped cavity can be divided into different functional areas (inlet area, purging area and exhaust area); thereby achieving full combustion of exhaust gas and improving the purification effect of exhaust gas. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0037] Figure 2 This is a schematic diagram of the structure of a mobile bag filter according to an embodiment of the present invention;

[0038] Figure 3 This is a schematic diagram of the internal structure of a mobile bag filter according to an embodiment of the present invention;

[0039] Figure 4 This is a schematic diagram of the structure of the bag filter assembly according to an embodiment of the present invention;

[0040] Figure 5 This is a schematic diagram of the structure of the dust removal drive assembly according to an embodiment of the present invention;

[0041] Figure 6 This is a schematic diagram of the air blowing plate according to an embodiment of the present invention;

[0042] Figure 7 This is a schematic diagram of the air blowing assembly according to an embodiment of the present invention;

[0043] Figure 8 This is a cross-sectional view of the air blowing assembly structure according to an embodiment of the present invention;

[0044] Figure 9 This is a schematic diagram of the structure of a VOC burner according to an embodiment of the present invention;

[0045] Figure 10 This is a cross-sectional view of the VOC burner structure according to an embodiment of the present invention;

[0046] Figure 11 This is a schematic diagram of the gas distribution pipe according to an embodiment of the present invention;

[0047] Figure 12 This is a schematic diagram of the gas distribution cavity according to an embodiment of the present invention.

[0048] Reference numerals: 1. Cyclone dust collector; 2. Dust collection box; 3. Exhaust vent; 5. Mobile bag filter dust collector; 51. Dust collector housing; 52. Bag filter mechanism; 521. Dust collector frame; 522. Bag filter assembly; 5221. Dust collector support frame; 5222. Dust collector bag; 5223. Fixture; 5224. Slot; 5225. Air inlet; 5226. Vibrating plate; 53. Mobile dust removal device Mechanism; 531, Air blowing plate; 5311, Air blowing hole; 532, Air blowing assembly; 5321, Air blowing fan; 5322, Movable tube assembly; 5323, Fixed arc tube; 5324, Movable arc tube; 5325, Flexible tube; 5326, Electric slide gate valve; 533, Dust removal drive assembly; 5331, Servo motor; 5332, Lead screw; 5333, Mounting carrier plate; 5334, Guide roller 5335, Guide rail; 534, First sensor group; 5341, First helical gear; 5342, Second helical gear; 5343, Gear plate; 5344, First sensor; 535, Second sensor group; 5351, Second sensor; 5352, Second sensing element; 54, Ash collection hopper; 6, VOC burner; 61, Combustion shell; 611, Heat storage chamber; 612, Combustion chamber; 613, Ceramic heat storage body; 614, Baffle plate; 62, Gas distribution mechanism; 621, Gas distribution pipe; 6211, Inlet pipe; 6212, Exhaust pipe; 6213, Purge pipe; 622, Gas distribution chamber; 6221, Inlet chamber; 6222, Exhaust chamber; 6223, Purge chamber; 63, Burner head; 7, First exhaust fan; 8, Exhaust chimney; 9, Second exhaust fan; 10, Purge fan. Detailed Implementation

[0049] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0050] Please see Figures 1 to 12 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding and reading. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

[0051] Please see Figure 1 The present invention provides a harmless treatment device for industrial waste gas, which includes, in sequence, a cyclone dust collector 1, a mobile bag dust collector 5, a first exhaust fan 7, a VOC burner 6, a second exhaust fan 9 and an exhaust chimney 8 connected in series by pipelines.

[0052] The cyclone dust collector 1 is used to remove the first type of dust particles. The cyclone dust collector 1 is equipped with an exhaust port 3 and a first exhaust port. The raw industrial waste gas containing dust and VOCs enters the cyclone dust collector 1 through the exhaust port 3 through the pipe. Inside the cyclone dust collector 1, the waste gas enters tangentially and forms a high-speed rotating airflow. The first type of dust particles (usually referring to large dust particles with a particle size greater than 10μm) are thrown towards the wall of the collector under the action of strong centrifugal force. After colliding with the wall, they lose kinetic energy and slide down the conical inner wall to the bottom dust collection box 2 for collection and removal. The waste gas that has been preliminarily purified is discharged from the first exhaust port at the top of the cyclone dust collector 1.

[0053] A baghouse dust collector is used to remove Class II dust particles. The mobile baghouse dust collector 5 includes a dust collection housing 51, a baghouse dust collection mechanism 52 disposed inside the dust collection housing 51, a mobile cleaning mechanism 53 for cleaning the baghouse dust collection mechanism 52, and a dust collection hopper 54 disposed at the bottom of the dust collection housing 51. The dust collection housing 51 is provided with a second air inlet and a second air outlet, and the second air inlet is connected to the first air outlet. The pre-purified exhaust gas enters the second air inlet of the mobile baghouse dust collector 5 through a connecting pipe. After the exhaust gas enters the dust collection housing 51, it flows through the baghouse dust collection mechanism 52, where the fine Class II dust particles (usually referring to small dust particles with a particle size of less than 10μm) are efficiently intercepted on the outer surface of the dust collection bags 5222. The clean gas after deep dust removal is discharged from the second air outlet.

[0054] The VOC burner 6 is used to incinerate volatile organic compounds in the exhaust gas; the VOC burner 6 is equipped with a third air inlet and a third air outlet, and the third air inlet and the second air outlet are connected through a first exhaust fan 7; the exhaust chimney 8 is connected to the third air outlet through a second exhaust fan 9.

[0055] After dust purification, the gas is drawn in by the first exhaust fan 7 and enters the third air inlet of the VOC burner 6. Inside the VOC burner 6, the volatile organic compounds (VOCs) in the exhaust gas are completely oxidized and decomposed into carbon dioxide and water at high temperature. The exhaust gas, after being rendered harmless by high-temperature incineration, is discharged from the third air outlet and then transported to the emission chimney 8 by the second exhaust fan 9, and finally discharged into the atmosphere in compliance with standards.

[0056] Please see Figure 2 and Figure 3 The bag filter mechanism 52 includes a dust collector frame 521 fixedly welded inside the dust collector housing 51 and several bag filter components 522 that can be pulled out and horizontally installed on the dust collector frame 521; in this embodiment, the several bag filter components 522 are arranged in a rectangular array.

[0057] Please see Figure 4The bag filter assembly 522 includes a dust collector support frame 5221, a dust collector bag 5222 sleeved on the outside of the dust collector support frame 5221, and two fasteners 5223 respectively disposed at both ends of the dust collector bag 5222. Each of the two fasteners 5223 has a slot 5224 that matches the shape of the end of the dust collector support frame 5221, which securely fixes the dust collector bag 5222 to the dust collector support frame 5221 by snap-fit. An air inlet 5225 is provided in the center of the fastener 5223 located on the side facing the movable dust removal mechanism 53 for introducing the dust removal airflow. In the middle of the dust collector support frame 5221, a vibrating plate 5226 that keeps in contact with the inner wall of the dust collector bag 5222 is also fixedly installed. In this embodiment, the vibrating plate 5226 is preferably made of elastic metal sheet, which will generate high-frequency vibration when impacted by external airflow.

[0058] Please see Figure 5 and Figure 6 The mobile dust removal mechanism 53 includes an air blowing plate 531 that can slide back and forth in the horizontal direction within the dust removal housing 51, an air blowing assembly 532 that provides an air source for the air blowing plate 531, a dust removal drive assembly 533 that drives the air blowing plate 531 to move, a first sensor group 534 that controls the dust removal rhythm, and a second sensor group 535 that limits the movement stroke.

[0059] The blowing plate 531 has a hollow blowing chamber inside, and multiple blowing holes 5311 communicating with the blowing chamber are evenly opened on the side wall facing the bag dust collector assembly 522. When the blowing plate 531 moves to a position directly opposite the air inlet 5225 of a bag dust collector assembly 522, high-pressure gas is ejected from the blowing hole 5311 and enters the dust collector bag 5222 through the air inlet 5225, causing the dust collector bag 5222 to expand and shake instantly. At the same time, the vibrating plate 5226 is excited to generate auxiliary vibration, thereby efficiently shaking the dust attached to the outer surface of the dust collector bag 5222 into the dust collection hopper 54 at the bottom.

[0060] Please see Figure 3 , Figure 7 and Figure 8 The air blowing assembly 532 includes an air blowing fan 5321 fixedly installed on the top of the dust collector housing 51 and a movable pipe assembly 5322 connecting the air blowing fan 5321 and the air blowing plate 531. The movable pipe assembly 5322 includes a fixed arc pipe 5323 with one end fixedly connected to the air outlet of the air blowing fan 5321 and fixedly installed on the dust collector housing 51, a movable arc pipe 5324 rotatably sleeved inside the fixed arc pipe 5323, and a flexible pipe 5325 connecting the end of the movable arc pipe 5324 to the air inlet of the air blowing plate 531. In this embodiment, the flexible pipe 5325 can be a metal corrugated pipe. An electric slide valve 5326 is also installed on the connecting pipe between the air blowing fan 5321 and the fixed arc pipe 5323 for precisely controlling the flow of the dust cleaning air.

[0061] Please see Figure 5 and Figure 6 The dust removal drive assembly 533 is used to drive the air blowing plate 531 to move precisely. The dust removal drive assembly 533 includes a servo motor 5331 fixedly installed on one side of the dust collector housing 51, a lead screw 5332 connected to the output shaft of the servo motor 5331 via a coupling and horizontally arranged, and a mounting plate 5333 meshing with the lead screw 5332 and sliding along a linear guide rail installed on the dust collector housing 51. The air blowing plate 531 is fixedly installed on the mounting plate 5333. To ensure smooth movement, two guide rollers 5334 are rotatably installed on the top of the air blowing plate 531. A guide rail 5335 is fixedly installed on the dust collector housing 51. The guide rollers 5334 cooperate with the guide rail 5335 fixed on the dust collector housing 51 to roll.

[0062] Please see Figure 5 and Figure 6 The first sensor group 534 is used to realize the intermittent moving dust removal control of the blowing plate 531. The first sensor group 534 includes a first helical gear 5341 fixed to the output shaft (or the end of the lead screw 5332) of the servo motor 5331, a second helical gear 5342 meshing with the first helical gear 5341, a gear plate 5343 coaxially fixed to the second helical gear 5342 and rotating with it, and a first sensor 5344 fixedly installed on the dust collector housing 51. In this embodiment, the first sensor 5344 can be a proximity switch; the circumference of the gear plate 5343... The gear plate 5343 is equipped with raised sensing teeth. When the servo motor 5331 drives the air blowing plate 531 to move to a dust removal station, the control system controls the servo motor 5331 to pause. After the dust removal action (opening the electric slide valve 5326 and the air blowing fan 5321) is completed, the servo motor 5331 starts to rotate at a small angle again, causing the gear plate 5343 to rotate through a certain angle. The sensing teeth on it trigger the first sensor 5344, which sends a signal to make the servo motor 5331 continue to drive the air blowing plate 531 to move to the next dust removal station. This cycle is repeated to achieve intermittent, group-by-group dust removal.

[0063] The second sensor group 535 is used to limit the movement range of the air blowing plate 531 to prevent it from overtraveling and colliding. The second sensor group 535 includes two second sensors 5351 that are respectively fixedly installed on the dust collector housing 51 at corresponding positions at both ends of the lead screw 5332, and two second sensing plates 5352 that are respectively fixed on the mounting plate 5333. When the mounting plate 5333 moves to the limit position of the travel, the corresponding second sensing plate 5352 will trigger the corresponding second sensor 5351, and the servo motor 5331 will immediately stop rotating.

[0064] Please see Figure 9 and Figure 10The VOC burner 6 includes a combustion shell 61, a gas distribution mechanism 62, and a burner head 63. The combustion shell 61 is arranged from bottom to top as a heat storage chamber 611 and a combustion chamber 612 that are interconnected. The heat storage chamber 611 is divided into several independent sector-shaped chambers by a plurality of radially arranged baffles 614. Each sector-shaped chamber is filled with a ceramic heat storage body 613 composed of honeycomb ceramic or ceramic balls. The burner head 63 is installed at the top center of the combustion chamber 612.

[0065] Please see Figure 11 and Figure 12 The gas distribution mechanism 62 is used to control the inflow of exhaust gas, the outflow of purified gas, and the switching of the purging process. The gas distribution mechanism 62 includes a gas distribution pipe 621 that communicates with the bottom of all sector cavities and a distribution chamber located at the bottom of each sector cavity. The gas distribution pipe 621 includes an inlet pipe 6211, an exhaust pipe 6212, and a purging pipe 6213. The inlet pipe 6211 is connected to the first exhaust fan 7 and the third air inlet through a pipe. The exhaust pipe 6212 is connected to the second exhaust fan 9 and the third air outlet through a pipe. The purging pipe 6213 is connected to a purging fan 10. A control valve (such as a pneumatic butterfly valve or a lift valve) is installed on each pipe.

[0066] The distribution chamber contains three independent chambers: an intake chamber 6221 connected to the intake pipe 6211, an exhaust chamber 6222 connected to the exhaust pipe 6212, and a purge chamber 6223 connected to the purge pipe 6213.

[0067] Brief description of the operation process: The mixed exhaust gas containing dust and VOCs first passes through the cyclone dust collector 1, which removes most of the coarse dust particles and protects the subsequent bag filter. Then it enters the mobile bag filter 5, where the high-efficiency bag filter removes most of the fine particles and some adhesive particles. The bag filter adopts a mobile cleaning mechanism 53, which can realize fixed-point and timed online cleaning. The cleaning force is uniform and adjustable, avoiding the local fatigue damage of the filter bags that may be caused by traditional pulse cleaning. The cleaning effect is better, ensuring low resistance under long-term stable operation of the system. After deep dust removal, the exhaust gas enters the VOC burner 6. Since the previous stage has effectively removed the dust that may clog the heat storage body, wear the switching valve, or affect combustion, the VOC burner 6 can operate more efficiently and stably, completely decomposing VOCs into harmless substances. Finally, the synergistic and efficient purification of dust and VOCs is achieved, and the emission indicators meet the strict environmental protection standards.

[0068] In summary, this invention utilizes three technologies—mechanical dust removal, filtration dust removal, and high-temperature oxidation—and optimizes their coupling for complex waste gas components. It boasts advantages such as high purification efficiency, stable operation, strong adaptability, and relatively low energy consumption, making it particularly suitable for treating industrial waste gases with complex compositions and stringent emission requirements.

[0069] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A device for the harmless treatment of industrial waste gas, characterized in that: include Cyclone dust collector (1), the cyclone dust collector (1) is used to remove first type of dust particles, the cyclone dust collector (1) is provided with an air intake (3) and a first air outlet; A mobile bag filter (5) is used to remove second-class dust particles; the mobile bag filter (5) includes a dust collection housing (51), a bag filter mechanism (52) disposed in the dust collection housing (51) for filtering second-class dust particles in the exhaust gas, a mobile cleaning mechanism (53) disposed in the dust collection housing (51) for cleaning the bag filter mechanism (52), and a dust collection hopper (54) disposed at the bottom of the dust collection housing (51) for collecting the dust particles removed by the mobile cleaning mechanism (53); The dust collector housing (51) is provided with a second air inlet and a second air outlet, and the second air inlet is connected to the first air outlet; VOC burner (6), the VOC burner (6) is used to burn volatile organic compounds in waste gas; the VOC burner (6) is provided with a third air inlet and a third air outlet, the third air inlet and the second air outlet are connected by a first exhaust fan (7); And an exhaust chimney (8) connected to the VOC burner (6), wherein the third exhaust outlet is connected to the exhaust chimney (8) via a second exhaust fan (9).

2. The device for harmless treatment of industrial waste gas according to claim 1, characterized in that: The bag filter mechanism (52) includes a dust collector frame (521) fixedly installed inside the dust collector housing (51) and several bag filter components (522) that are pulled out and installed on the dust collector frame (521); The bag filter assembly (522) includes a dust removal support frame (5221), a dust removal bag (5222) sleeved on the dust removal support frame (5221), and two fasteners (5223) disposed at both ends of the dust removal bag (5222) and snapped to the ends of the dust removal support frame. Both of the aforementioned fasteners (5223) are provided with slots (5224) that match the two ends of the dust removal support frame (5221); the fastener (5223) near the movable dust removal mechanism (53) is provided with an air inlet (5225); The dust removal support frame (5221) is fixedly provided with a vibrating plate (5226) that contacts the inner wall of the dust removal bag (5222).

3. The device for harmless treatment of industrial waste gas according to claim 2, characterized in that: The mobile dust removal mechanism (53) includes an air blowing plate (531) slidably disposed in the dust removal housing (51), an air blowing assembly (532) that provides an air source for the air blowing plate (531), a dust removal drive assembly (533) that drives the air blowing plate (531) to slide horizontally back and forth in the dust removal housing (51), a first sensor group (534) that cooperates with the dust removal drive assembly (533) to realize the intermittent movement of the air blowing plate (531), and a second sensor group (535) that limits the sliding distance of the air blowing plate (531). The air blowing plate (531) is provided with an air blowing chamber, and the side wall of the air blowing plate (531) is provided with an air blowing hole (5311) that communicates with the air blowing chamber.

4. The device for harmless treatment of industrial waste gas according to claim 3, characterized in that: The air blowing assembly (532) includes an air blowing fan (5321) fixedly installed on the dust collector housing and a movable tube assembly (5322) with one end connected to the air blowing fan (5321) and the other end connected to the air blowing plate (531); The movable tube assembly (5322) includes a fixed arc tube (5323) with one end connected to the air blower (5321) and fixedly installed on the dust collector housing, a movable arc tube (5324) rotatably disposed inside the fixed arc tube (5323), and a flexible tube (5325) connected to the air blowing plate (531); An electric slide valve (5326) is provided between the air blower (5321) and the fixed arc tube (5323).

5. The device for harmless treatment of industrial waste gas according to claim 3, characterized in that: The dust removal drive assembly (533) includes a servo motor (5331) fixedly mounted on the dust collector housing (51), a lead screw (5332) fixedly connected to the output shaft of the servo motor (5331), and a mounting plate (5333) meshing with the lead screw (5332) and horizontally slidingly connected to the dust collector housing (51); the air blowing plate (531) is fixedly mounted on the mounting plate (5333); The air blowing plate (531) is rotatably provided with a guide roller (5334), and the dust removal housing (51) is fixedly installed with a guide rail (5335) that slides and cooperates with the guide roller (5334).

6. The device for harmless treatment of industrial waste gas according to claim 3, characterized in that: The first sensor group (534) includes a first helical gear (5341) fixedly connected to the output shaft of the servo motor (5331), a second helical gear (5342) meshing with the first helical gear (5341), a gear plate (5343) fixedly connected to the second helical gear (5342) and rotatably connected to the dust collector housing (51), and a first sensor (5344) fixedly mounted on the dust collector housing (51).

7. The device for harmless treatment of industrial waste gas according to claim 3, characterized in that: The second sensor group (535) includes two second sensors (5351) respectively fixed on the dust removal housing (51) at both ends of the lead screw (5332) and two second sensing plates (5352) respectively fixed on the mounting plate (5333).

8. The device for harmless treatment of industrial waste gas according to claim 1, characterized in that: The VOC burner (6) includes a combustion shell (61), a gas distribution mechanism (62), and a burner head (63); The combustion shell (61) is provided with interconnected heat storage chamber (611) and combustion chamber (612) from bottom to top. Several partitions (614) are fixed in the heat storage chamber (611) to divide the heat storage chamber (611) into several fan-shaped chambers. The fan-shaped chambers are filled with ceramic heat storage body (613). The burner head (63) is installed inside the combustion chamber (612).

9. A harmless treatment device for industrial waste gas according to claim 2, characterized in that: The gas distribution mechanism (62) includes a gas distribution pipe (621) and a gas distribution cavity (622), and each of the sector cavities is connected to a set of gas distribution cavities (622); The gas distribution pipe (621) includes an intake pipe (6211), an exhaust pipe (6212), and a purge pipe (6213), and each of the intake pipe (6211), exhaust pipe (6212), and purge pipe (6213) is equipped with a control valve.

10. A harmless treatment device for industrial waste gas according to claim 9, characterized in that: The gas distribution chamber (622) includes an intake chamber (6221) connected to the intake pipe (6211) and the third air inlet, an exhaust chamber (6222) connected to the exhaust pipe and the third air outlet, and a purge chamber (6223) connected to the purge pipe (6213) and the purge fan (10).

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