A safety treatment device for chemical waste gas filtration

Abstract

This invention discloses a safe treatment device for chemical waste gas filtration. The technical solution includes a treatment cylinder, a filter cylinder, a dust removal mechanism, a dust discharge mechanism, and a purification mechanism. A blower and an exhaust fan are fixedly connected to the outer wall of the treatment cylinder. The dust removal mechanism removes dust from the filter cylinder, and the dust discharge mechanism discharges dust from the treatment cylinder. The purification mechanism is connected to the outlet of the exhaust fan. The beneficial effect of this invention is that the device inputs waste gas into the treatment cylinder via a blower, and the exhaust fan transports the waste gas from the treatment cylinder to the purification mechanism. In the treatment cylinder, the waste gas passes through the filter cylinder to filter solid particulate impurities. During this process, the dust removal mechanism removes dust from the filter cylinder, the dust discharge mechanism discharges dust from the treatment cylinder, and the purification mechanism performs acid-base neutralization and adsorption treatment on the waste gas. Thus, safe treatment of the waste gas can be achieved.

Description

Technical Field

[0001] This invention relates to a waste gas treatment device, and more particularly to a safe treatment device for filtering chemical waste gas. Background Technology

[0002] Chemical production processes generate a large amount of waste gas, which contains not only solid particulate waste but also some acidic or alkaline toxic gases. The waste gas from chemical production needs to be treated before it can be discharged.

[0003] Chinese Patent No. 202123087106.4 discloses a "Safety Treatment Device for Chemical Waste Gas Filtration," whose technical solution includes a housing. An air inlet pipe is connected to the left side of the housing, and an air outlet pipe is connected to the top right side of the housing. A chamber is located on the top left side of the housing, and a threaded rod is installed inside the chamber. One end of the threaded rod passes through the top of the housing, and the bottom of the other end of the threaded rod is connected to a movable plate. A positioning strip is connected to the bottom of the movable plate. A filter plate is installed inside the housing. The top of the filter plate has a positioning groove corresponding to the positioning strip, and the bottom of the filter plate is recessed inward to form a sliding groove that matches a slide rail. This patent uses filter plates to filter waste gas. However, this device has the following problems: First, although each filter plate can be disassembled for cleaning, the filter plates need to be removed during the cleaning process, causing the equipment to stop and preventing continuous online cleaning and ash removal. Second, although the filter plates can remove solid particles from the waste gas, they cannot purify acidic and alkaline toxic gases in the waste gas. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a safety treatment device for filtering chemical waste gas, which has automatic dust removal and ash discharge functions and can purify the waste gas.

[0005] This invention is achieved through the following technical solution: a safety treatment device for filtering chemical waste gas, comprising:

[0006] The treatment cylinder has an annular air outlet chamber and an air inlet chamber symmetrically fixed to its outer wall. Air outlet holes are evenly opened around the circumference of the side plate of the treatment cylinder corresponding to the positions of the air outlet chamber and air inlet holes are evenly opened around the circumference of the side plate of the treatment cylinder corresponding to the positions of the air inlet chamber. A blower and an exhaust fan are fixed to the outer wall of the treatment cylinder. The inlet of the blower is connected to an external waste gas generating device, the outlet of the blower is connected to the air inlet chamber, and the inlet of the exhaust fan is connected to the air outlet chamber.

[0007] The filter cartridge has a partition plate fixedly connected inside, and first mounting cylinders are symmetrically fixedly connected to the partition plate. A second mounting cylinder corresponding to the first mounting cylinder is fixedly connected to the top plate of the processing cylinder. The upper and lower ends of the filter cartridge are respectively fixedly connected to the second mounting cylinder and the first mounting cylinder.

[0008] A dust removal mechanism is used to remove dust from the filter cartridge;

[0009] A dust removal mechanism is used to remove dust from the processing cylinder.

[0010] A purification mechanism is connected to the outlet of an exhaust fan.

[0011] Furthermore, the dust removal mechanism includes a cleaning ring, a reciprocating screw, a motor, and a lifting seat; a guide rod is uniformly fixed to the circumference between the first and second mounting cylinders; the cleaning ring is sleeved on the outside of the filter cylinder and slidably connected to the guide rod; the filter cylinder includes connecting sleeves spaced apart vertically; the upper and lower connecting sleeves are respectively fixed to the second and first mounting cylinders; a connecting plate is uniformly fixed to the circumference between the connecting sleeves; a filter screen is fixed between two adjacent connecting plates; the outer wall of the connecting plate is also uniformly fixed with hemispherical protrusions vertically; the inner wall of the cleaning ring has a groove corresponding to the position of the connecting plate; a striking block is slidably connected in the groove; the striking block is connected to the bottom of the groove by a spring; the reciprocating screw is rotatably connected to the center of the processing cylinder and the partition; a machine cover is fixedly fixed to the top plate of the processing cylinder; the motor is fixedly fixed inside the machine cover; the output shaft of the motor is connected to the reciprocating screw through a coupling; a reciprocating threaded sleeve is fixedly fixed to the center of the lifting seat; the reciprocating screw meshes in the reciprocating threaded sleeve; and the lifting seat is fixedly connected to the cleaning ring through a support rod.

[0012] Furthermore, when the striking block contacts the connecting plate, the spring is in its natural state.

[0013] Furthermore, the ash discharge mechanism includes a rotating chamber and a turntable; the rotating chamber is fixedly connected to the lower surface of the bottom plate of the processing cylinder, and an ash discharge port is provided on the right side of the bottom plate of the processing cylinder; the turntable is rotatably connected inside the rotating chamber; the reciprocating screw is rotatably connected to the bottom plate of the processing cylinder, and the bottom of the reciprocating screw is fixedly connected to the center of the upper surface of the turntable; a through groove corresponding to the ash discharge port is provided on the turntable; an ash drop port corresponding to the through groove is provided on the bottom plate of the rotating chamber; a collection hood is fixedly connected to the lower surface of the bottom plate of the rotating chamber, and the collection hood covers the ash drop inside; an ash discharge pipe is also fixedly connected to the bottom of the rotating chamber through a support rod, and the ash discharge pipe is connected to the collection hood through the ash drop pipe.

[0014] Furthermore, a guide cover is fixedly connected to the upper surface of the bottom plate of the processing cylinder, the reciprocating screw is rotatably connected to the guide cover, and the side plate of the guide cover is inclined.

[0015] Furthermore, a brush holder is fixedly connected to the reciprocating lead screw, and the bottom of the brush holder is densely covered with brush bristles.

[0016] Furthermore, the purification mechanism includes an adsorption chamber and a first and second liquid storage cylinder symmetrically fixed to the bottom of the adsorption chamber. An addition pipe is fixed to the upper front side of the first and second liquid storage cylinders, with an end cap threaded to the head of the addition pipe. A drain pipe is fixed to the bottom of the first and second liquid storage cylinders, and a valve is provided on the drain pipe. A first pipe is fixed to the upper left side of the first liquid storage cylinder, connected to the outlet of an exhaust fan, with the bottom of the first pipe extending into the bottom of the first liquid storage cylinder. A second pipe is fixed to the upper right side of the first liquid storage cylinder; the second pipe is L-shaped, with its horizontal portion fixedly connected to the second liquid storage cylinder, and its bottom extending into the bottom of the second liquid storage cylinder. A mesh is fixed inside the left and right side plates of the adsorption chamber. A transfer chamber is fixed to the outer wall of the right side plate of the adsorption chamber, enclosing the mesh. The transfer chamber is connected to the upper right side of the second liquid storage cylinder via a third pipe. The adsorption chamber contains activated carbon granules.

[0017] Furthermore, a cover is fixed to the top of the adsorption chamber by a bolt assembly, a first air guide plate is fixed to the bottom plate of the adsorption chamber, and a second air guide plate is fixed to the lower surface of the cover.

[0018] Furthermore, a transparent observation window is fixed to both the first and second liquid storage cylinders.

[0019] The beneficial effects of this invention are as follows: This invention uses a blower to input waste gas into the treatment cylinder, and an exhaust fan to transport the waste gas in the treatment cylinder to the purification mechanism. In the treatment cylinder, the waste gas passes through a filter cartridge to filter out solid particulate impurities. During this process, a dust removal mechanism removes dust from the filter cartridge, and a dust discharge mechanism discharges dust from the treatment cylinder. The purification mechanism performs acid-base neutralization and adsorption treatment on the waste gas, thereby achieving safe treatment of the waste gas. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 yes Figure 1 A magnified view of a portion at point A shown;

[0022] Figure 3 yes Figure 1 A magnified view of a portion at point B shown;

[0023] Figure 4 This is a schematic diagram illustrating the cooperation between the cleaning ring and the filter cartridge described in this invention;

[0024] Figure 5 This is a schematic diagram of the cleaning ring described in this invention;

[0025] Figure 6 This is a schematic diagram of the structure of the filter cartridge described in this invention;

[0026] Figure 7 This is a three-dimensional schematic diagram of the purification mechanism described in this invention;

[0027] Figure 8 This is a cross-sectional view of the purification mechanism described in this invention.

[0028] The above figures are labeled as follows:

[0029] 1-Processing cylinder, 11-Outlet chamber, 12-Inlet chamber, 13-Outlet hole, 14-Inlet hole, 15-Blower, 16-Exhaust fan, 17-Baffle plate, 18-First mounting cylinder, 19-Second mounting cylinder, 2-Filter cylinder, 21-Connecting sleeve, 22-Connecting plate, 23-Filter screen, 24-Protrusion, 31-Cleaning ring, 32-Reciprocating screw, 33-Motor, 34-Lifting seat, 35-Guide rod, 36-Groove, 37-Knocking block, 38-Spring, 39-Machine cover, 310-Reciprocating threaded sleeve, 311-Support rod, 41-Rotating chamber, 42-Turntable, 43-Ash discharge port, 44-Through groove, 4 5-Ash discharge port, 46-Collection hood, 47-Support rod, 48-Ash discharge pipe, 49-Ash discharge pipe, 410-Guide hood, 411-Brush seat, 412-Brush bristles, 5-Purification mechanism, 51-Adsorption chamber, 52-First liquid storage tank, 53-Second liquid storage tank, 54-Adding pipe, 55-End cap, 56-Drain pipe, 57-Valve, 58-First pipe, 59-Second pipe, 510-Separator, 511-Transfer chamber, 512-Third pipe, 513-Activated carbon granules, 514-Bolt assembly, 515-Cover, 516-First air guide plate, 517-Second air guide plate, 518-Observation window. Implementation

[0030] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0031] Example 1, referring to Figures 1-8 The present invention provides a safety treatment device for filtering chemical waste gas, comprising:

[0032] The treatment cylinder 1 has an annular air outlet chamber 11 and an air inlet chamber 12 symmetrically fixed to its outer wall. Air outlet holes 13 are evenly opened around the circumference of the side plate of the treatment cylinder 1 corresponding to the position of the air outlet chamber 11. Air inlet holes 14 are evenly opened around the circumference of the side plate of the treatment cylinder 1 corresponding to the position of the air inlet chamber 12. A blower 15 and an exhaust fan 16 are fixed to the outer wall of the treatment cylinder 1. The inlet of the blower 15 is connected to the external waste gas generating device, the outlet of the blower 15 is connected to the air inlet chamber 12, and the inlet of the exhaust fan 16 is connected to the air outlet chamber 11.

[0033] The filter cartridge 2 has a partition 17 fixedly connected inside the treatment cartridge 1. The partition 17 has a first mounting cartridge 18 fixedly connected symmetrically on the left and right sides. The top plate of the treatment cartridge 1 has a second mounting cartridge 19 corresponding to the first mounting cartridge 18 fixedly connected. The upper and lower ends of the filter cartridge 2 are respectively fixedly connected inside the second mounting cartridge 19 and the first mounting cartridge 18.

[0034] The dust removal mechanism is used to remove dust from the filter cartridge 2.

[0035] Ash removal mechanism, used to remove dust from the processing cylinder 1;

[0036] Purification unit 5 is connected to the outlet of exhaust fan 16.

[0037] Furthermore, the dust removal mechanism includes a cleaning ring 31, a reciprocating screw 32, a motor 33, and a lifting seat 34; guide rods 35 are uniformly fixed to the circumference between the first mounting cylinder 18 and the second mounting cylinder 19; the cleaning ring 31 is sleeved on the outside of the filter cylinder 2 and slidably connected to the guide rods 35; the filter cylinder 2 includes connecting sleeves 21 spaced apart vertically; the upper and lower connecting sleeves 21 are respectively fixed to the second mounting cylinder 19 and the first mounting cylinder 18; connecting plates 22 are uniformly fixed to the circumference between the connecting sleeves 21; filter screens 23 are fixed between adjacent connecting plates 22; and hemispherical protrusions 24 are also uniformly fixed vertically to the outer wall of the connecting plates 22. The inner wall of the cleaning ring 31 has a groove 36 corresponding to the position of the connecting plate 22. A striking block 37 is slidably connected in the groove 36. The striking block 37 is connected to the bottom of the groove 36 by a spring 38. The reciprocating screw 32 is rotatably connected to the center of the processing cylinder 1 and the partition plate 17. The top plate of the processing cylinder 1 is fixedly connected to the cover 39. The motor 33 is fixedly connected inside the cover 39. The output shaft of the motor 33 is connected to the reciprocating screw 32 through a coupling. The center of the lifting seat 34 is fixedly connected to the reciprocating threaded sleeve 310. The reciprocating screw 32 is engaged in the reciprocating threaded sleeve 310. The lifting seat 34 is fixedly connected to the cleaning ring 31 through the support rod 311.

[0038] Furthermore, when the striking block 37 comes into contact with the connecting plate 22, the spring 38 is in its natural state.

[0039] Furthermore, the ash discharge mechanism includes a rotating chamber 41 and a turntable 42; the rotating chamber 41 is fixedly connected to the lower surface of the bottom plate of the processing cylinder 1, and an ash discharge port 43 is provided on the right side of the bottom plate of the processing cylinder 1. The turntable 42 is rotatably connected inside the rotating chamber 41, and the reciprocating screw 32 is rotatably connected to the bottom plate of the processing cylinder 1. The bottom of the reciprocating screw 32 is fixedly connected to the center of the upper surface of the turntable 42. A through groove 44 corresponding to the ash discharge port 43 is provided on the turntable 42. An ash drop port 45 corresponding to the through groove 44 is provided on the bottom plate of the rotating chamber 41. A collection cover 46 is fixedly connected to the lower surface of the bottom plate of the rotating chamber 41. The collection cover 46 covers the ash drop port 45 inside. An ash discharge pipe 48 is also fixedly connected to the bottom of the rotating chamber 41 through a support rod 47. The ash discharge pipe 48 and the collection cover 46 are connected through an ash drop pipe 49.

[0040] Furthermore, a guide cover 410 is fixedly connected to the upper surface of the bottom plate of the processing cylinder 1, and the reciprocating screw 32 is rotatably connected to the guide cover 410. The side plate of the guide cover 410 is inclined.

[0041] Furthermore, a brush holder 411 is fixedly connected to the reciprocating lead screw 32, and the bottom of the brush holder 411 is densely covered with brush bristles 412.

[0042] Furthermore, the purification mechanism 5 includes an adsorption chamber 51 and a first liquid storage tank 52 and a second liquid storage tank 53 symmetrically fixed to the bottom of the adsorption chamber 51. An addition pipe 54 is fixed to the upper front side of the first liquid storage tank 52 and the second liquid storage tank 53, and an end cap 55 is threaded onto the head of the addition pipe 54. A drain pipe 56 is fixed to the bottom of the first liquid storage tank 52 and the second liquid storage tank 53, and a valve 57 is provided on the drain pipe 56. A first pipe 58 is fixed to the upper left side of the first liquid storage tank 52, and the first pipe 58 is connected to the outlet of the exhaust fan 16. The bottom of the first pipe 58 extends into the first liquid storage tank. At the bottom of 52, a second pipe 59 is fixedly connected to the upper right side of the first liquid storage cylinder 52. The second pipe 59 is L-shaped, and the horizontal part of the second pipe 59 is fixedly connected to the second liquid storage cylinder 53. The bottom of the second pipe 59 extends into the bottom of the second liquid storage cylinder 53. A partition net 510 is fixedly connected to the left and right side plates of the adsorption chamber 51. A transfer chamber 511 is fixedly connected to the outer wall of the right side plate of the adsorption chamber 51. The transfer chamber 511 covers the partition net 510 inside. The transfer chamber 511 is connected to the upper right side of the second liquid storage cylinder 53 through a third pipe 512. The adsorption chamber 51 contains activated carbon particles 513.

[0043] Furthermore, a cover 515 is fixedly connected to the top of the adsorption chamber 51 by bolt assembly 514, a first air guide plate 516 is fixedly connected to the bottom plate of the adsorption chamber 51, and a second air guide plate 517 is fixedly connected to the lower surface of the cover 515.

[0044] Preferably, a transparent observation window 518 is fixedly connected to the first liquid storage cylinder 52 and the second liquid storage cylinder 53.

[0045] The present invention discloses a safety treatment device for filtering chemical waste gas, the usage process of which is as follows:

[0046] First, acidic precipitant and alkaline precipitant are added to the first storage tank 52 and the second storage tank 53 respectively through the adding tube 54. Then, the end cap 55 is closed, activated carbon particles 513 are added to the adsorption chamber 51, and the buckle cap 515 is fixed by the bolt assembly 514.

[0047] Then start the blower 15, the exhaust fan 16 and the motor 33.

[0048] Blower 15 draws waste gas generated during chemical production into treatment cylinder 1 through air inlet chamber 12 and air inlet hole 14. When the waste gas passes through filter cylinder 2, particulate impurities are trapped. The filtered waste gas is then drawn into purification mechanism 5 by exhaust fan 16.

[0049] When the motor 33 is working, it drives the reciprocating screw 32 to rotate. Since the lifting seat 34 meshes with the reciprocating screw 32 through the reciprocating threaded sleeve 310 and is limited by the cooperation of the cleaning ring 31 and the guide rod 35, the lifting seat 34 and the cleaning ring 31 move up and down when the reciprocating screw 32 rotates.

[0050] like Figure 2 As shown, when the cleaning ring 31 moves, when the striking block 37 moves to the position of the protrusion 24, the striking block 37 retracts into the groove 36, the spring 38 is compressed, and when the striking block 37 is misaligned with the protrusion 24, the spring 38 is released, and the striking block 37 strikes the connecting plate 22. That is, when the cleaning ring 31 moves up and down, the striking block 37 continuously strikes the connecting plate 22, thereby causing the filter screen 23 to vibrate and the dust adhering to the filter screen 23 to be shaken off.

[0051] When the reciprocating screw 32 rotates, it also drives the turntable 42 to rotate. When the through groove 44 is aligned with the ash discharge port 43, the dust in the treatment cylinder 1 enters the through groove 44. When the through groove 44 is aligned with the ash discharge port 45, the dust in the through groove 44 is discharged through the ash discharge port 45, the ash discharge pipe 49 and the ash discharge pipe 48, thus realizing the continuous discharge of dust.

[0052] The filtered exhaust gas enters the first liquid storage tank 52 through the first pipe 58, where the alkaline substances are neutralized by an acidic precipitant. The alkaline-neutralized exhaust gas then enters the second liquid storage tank 53 through the second pipe 59, where the acidic substances are neutralized by an alkaline precipitant.

[0053] After acid-base neutralization, the waste gas enters the adsorption chamber 51 through the third pipe 512, where the impurities are adsorbed and treated by activated carbon particles 513.

[0054] By setting the first air guide plate 516 and the second air guide plate 517, the exhaust gas flows in a serpentine manner within the adsorption chamber 51, thereby increasing the adsorption time and area and improving the adsorption effect.

[0055] The above description is merely a partial preferred embodiment of the present invention. Any person skilled in the art can modify the above-described technical solutions or modify them into equivalent technical solutions. Therefore, any simple modifications or equivalent transformations made based on the technical solutions of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A chemical waste gas filtering and safe treatment device, characterized in that, The application relates to a dust filter. The dust filter comprises a processing cylinder, a filter cylinder, a dust cleaning mechanism and a dust discharging mechanism. The processing cylinder is provided with an annular air outlet bin and an annular air inlet bin which are symmetrically arranged on the outer wall of the processing cylinder. The side plate of the processing cylinder is uniformly provided with air outlet holes and air inlet holes which are correspondingly arranged on the positions of the air outlet bin and the air inlet bin. The processing cylinder is provided with a blower and an air extractor. The inlet of the blower is connected with a waste gas generating device. The outlet of the blower is connected with the air inlet bin. The inlet of the air extractor is connected with the air outlet bin. The filter cylinder is fixedly connected in the processing cylinder. The filter cylinder is provided with a first mounting cylinder which is symmetrically arranged on the partition plate. The top plate of the processing cylinder is provided with a second mounting cylinder which is correspondingly arranged on the first mounting cylinder. The filter cylinder is provided with two connection sleeves which are arranged at the upper and lower ends of the filter cylinder. The two connection sleeves are fixedly connected in the second mounting cylinder and the first mounting cylinder respectively. The connection sleeves are uniformly provided with connection plates in the circumferences. The adjacent two connection plates are fixedly connected with filter screens. The outer wall of the connection plate is vertically and uniformly provided with semispherical protrusions. The inner wall of the cleaning ring is provided with grooves which are correspondingly arranged on the positions of the connection plates. The grooves are slidably connected with knocking blocks. The knocking blocks are connected with the bottoms of the grooves through springs. The reciprocating screw rod is rotatably connected in the center of the processing cylinder and the partition plate. The top plate of the processing cylinder is fixedly connected with a machine cover. The machine cover is fixedly connected with a motor. The output shaft of the motor is connected with the reciprocating screw rod through a shaft coupling. The center of the lifting seat is fixedly connected with a reciprocating thread sleeve. The reciprocating screw rod is engaged in the reciprocating thread sleeve. The lifting seat is fixedly connected with the cleaning ring through a supporting rod. The dust discharging mechanism comprises a rotating bin and a rotating disc. The rotating bin is fixedly connected with the bottom plate of the processing cylinder. The right side of the bottom plate of the processing cylinder is provided with a dust discharging port. The rotating disc is rotatably connected in the rotating bin. The reciprocating screw rod is rotatably connected with the bottom plate of the processing cylinder. The bottom of the reciprocating screw rod is fixedly connected with the center of the upper surface of the rotating disc. The rotating disc is provided with a through groove which is correspondingly arranged on the dust discharging port. The bottom plate of the rotating bin is provided with a dust falling port which is correspondingly arranged on the through groove. The bottom plate of the rotating bin is fixedly connected with a collecting cover. The collecting cover covers the dust falling port. The bottom of the rotating bin is fixedly connected with a dust discharging pipe through a supporting rod. The dust discharging pipe is connected with the collecting cover through a dust falling pipe. The dust filter is provided with a purification mechanism which is connected with the outlet of the air extractor. The purification mechanism comprises a filter screen, a filter screen driving mechanism and a filter screen cleaning mechanism. The filter screen driving mechanism comprises a driving motor and a driving belt. The filter screen cleaning mechanism comprises a cleaning ring, a reciprocating screw rod and a motor. The cleaning ring is slidably connected with the reciprocating screw rod. The reciprocating screw rod is rotatably connected with the center of the processing cylinder and the partition plate. The top plate of the processing cylinder is fixedly connected with a machine cover. The machine cover is fixedly connected with a motor. The output shaft of the motor is connected with the reciprocating screw rod through a shaft coupling. The center of the lifting seat is fixedly connected with a reciprocating thread sleeve. The reciprocating screw rod is engaged in the reciprocating thread sleeve. The lifting seat is fixedly connected with the cleaning ring through a supporting rod. The dust discharging mechanism comprises a rotating bin and a rotating disc. The rotating bin is fixedly connected with the bottom plate of the processing cylinder. The right side of the bottom plate of the processing cylinder is provided with a dust discharging port. The rotating disc is rotatably connected in the rotating bin. The reciprocating screw rod is rotatably connected with the bottom plate of the processing cylinder. The bottom of the reciprocating screw rod is fixedly connected with the center of the upper surface of the rotating disc. The rotating disc is provided with a through groove which is correspondingly arranged on the dust discharging port. The bottom plate of the rotating bin is provided with a dust falling port which is correspondingly arranged on the through groove. The bottom plate of the rotating bin is fixedly connected with a collecting cover. The collecting cover covers the dust falling port. The bottom of the rotating bin is fixedly connected with a dust discharging pipe through a supporting rod. The dust discharging pipe is connected with the collecting cover through a dust falling pipe. The dust filter is provided with a purification mechanism which is connected with the outlet of the air extractor. The purifying mechanism comprises an adsorption bin, a first liquid storage cylinder and a second liquid storage cylinder symmetrically fixed at the bottom of the adsorption bin, an adding pipe fixed at the front upper part of the first liquid storage cylinder and the second liquid storage cylinder, an end cover threadedly connected at the head of the adding pipe, a liquid discharging pipe fixed at the bottom of the first liquid storage cylinder and the second liquid storage cylinder, a valve arranged on the liquid discharging pipe, a first pipeline fixed at the left upper part of the first liquid storage cylinder, the first pipeline connected with the outlet of an air extractor, the bottom of the first pipeline extending into the bottom of the first liquid storage cylinder, a second pipeline fixed at the right upper part of the first liquid storage cylinder, the second pipeline being L-shaped, the horizontal part of the second pipeline fixedly connected with the second liquid storage cylinder, the bottom of the second pipeline extending into the bottom of the second liquid storage cylinder, a screen fixed in the left and right side plates of the adsorption bin, a transfer bin fixed at the outer wall of the right side plate of the adsorption bin, the transfer bin covering the screen, the transfer bin connected with the right upper part of the second liquid storage cylinder through a third pipeline, and activated carbon particles filled in the adsorption bin.

2. The device for safe treatment of chemical waste gas filtration according to claim 1, characterized in that: When the knocking block contacts with the connecting plate, the spring is in a natural state.

3. The device for safe treatment of waste gas of chemical industry according to claim 1, characterized in that: A material guide cover is fixed on the upper surface of the bottom plate of the processing cylinder, the reciprocating wire rod is rotationally connected with the material guide cover, and the side plates of the material guide cover are arranged in an inclined manner.

4. The device for safe treatment of waste gas of chemical industry according to claim 1, characterized in that: A brush holder is fixed on the reciprocating wire rod, and the bottom of the brush holder is densely covered with bristles.

5. The device for safe treatment of waste gas of chemical industry according to claim 1, characterized in that: A buckle cover is fixed on the top of the adsorption bin through a bolt assembly, a first air guide plate is fixed on the bottom plate of the adsorption bin, and a second air guide plate is fixed on the lower surface of the buckle cover.

6. The device for safe treatment of waste gas of chemical industry according to claim 1, characterized in that: The first liquid storage cylinder and the second liquid storage cylinder are fixed with observation windows made of transparent material.

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