Circulation type activated carbon adsorption waste gas treatment equipment

Abstract

The invention particularly relates to circulating type activated carbon adsorption waste gas treatment equipment, and relates to the technical field of separation and filtration equipment.The circulating type activated carbon adsorption waste gas treatment equipment comprises a main barrel, an auxiliary barrel integrally arranged on one side of the main barrel and a water filtration system connected to one side of the main barrel, and the water filtration system is used for filtering water entering the main barrel; the upper side of the main barrel body is provided with an opening for air inlet, the lower side of the auxiliary barrel body is connected with an air inlet hopper for air inlet, waste gas can enter the auxiliary barrel body through the air inlet hopper, one side of the main barrel body is connected with an air pipe, the air pipe is provided with a first fan, the auxiliary barrel body is provided with a second fan, and the main barrel body and the auxiliary barrel body both have the effect of absorbing the waste gas; wherein the bottom end of the air pipe is longitudinally provided with a communicated fixed air filter pipe, and the front end of the fixed air filter pipe is connected with a plurality of movable air filter pipes which are distributed in a step shape in a front-back sliding manner.

Description

Technical Field

[0001] The present invention specifically relates to a circulating activated carbon adsorption waste gas treatment device, and relates to the field of industrial waste gas treatment. Background Art

[0002] In the field of industrial waste gas treatment, activated carbon has long been widely used as a core adsorption material due to its developed pore structure and huge specific surface area. However, the activated carbon of traditional treatment equipment generally adopts a single fixed bed design, and its single-layer activated carbon plate has limited adsorption capacity. When the waste gas treatment volume exceeds the original amount, its filtration effect will be greatly reduced, especially for some high-concentration waste gases, resulting in low adsorption rate and difficulty in coping with different air volume conditions. In addition, the existing structure cannot switch the circulating filtration state, the adsorption filtration effect needs to be improved, and the flexibility is low, which seriously affects the use effect of waste gas treatment. Therefore, it is urgent to propose a circulating activated carbon adsorption waste gas treatment equipment to improve the above problems. Summary of the invention

[0003] In view of the deficiencies in the prior art, the object of the present invention is to provide a circulating activated carbon adsorption waste gas treatment equipment to solve the problems mentioned in the above background technology.

[0004] In order to achieve the above-mentioned object, the present invention is realized by the following technical scheme: a circulating activated carbon adsorption waste gas treatment equipment, comprising a main cylinder, a sub-cylinder integrally arranged on one side of the main cylinder, and a water filtration system connected to one side of the main cylinder, the upper side of the main cylinder is provided with an opening for air intake, the lower side of the sub-cylinder is connected to an air intake hopper for air intake, one side of the main cylinder is connected to an air duct, the air duct is installed with a first fan, the sub-cylinder is installed with a second fan, and a fixed air filter pipe connected to the bottom end of the air duct is longitudinally installed; The front end of the fixed air filter tube is slidably connected to a plurality of movable air filter tubes distributed in a stepped manner. When the movable air filter tube slides backward, it is connected to the fixed air filter tube to form a multi-stage filtering circulation channel. When the movable air filter tube slides forward, it forms a separate filtering air outlet channel with the fixed air filter tube. The adjacent movable air filter tubes are connected and communicated with each other by sliding forward and backward, and a plug is installed on the top of each movable air filter tube. The plug is movably penetrated by the auxiliary cylinder body and one side of the main cylinder body, and a side air hole connected to the auxiliary cylinder body is opened on one side of the end of the plug. The plug is switched and connected with the auxiliary cylinder body or the main cylinder body as the movable air filter tube is displaced forward and backward, so as to switch the plug blowing or suction state.

[0005] A further improved solution is that a first activated carbon filter plate is installed in the middle of the fixed air filter tube, and an air outlet is opened on the lower side of the fixed air filter tube away from one end of the air duct, two groups of second activated carbon filter plates are installed on the inner side of the movable air filter tube, and an electric air valve is installed in the middle of one side of the movable air filter tube, and the electric air valve is located between the two groups of second activated carbon filter plates.

[0006] A further improved solution allows the equipment to open the electric air valve corresponding to the movable air filter tube when the movable air filter tube moves forward and drives the corresponding insert tube to connect with the auxiliary cylinder body, and close the electric air valve corresponding to the movable air filter tube when the movable air filter tube moves backward and drives the corresponding insert tube to connect with the main cylinder body.

[0007] According to a further improved solution, a pushing group for pushing the movable air filter tube adjacent to the lower side is installed on the front side of the fixed air filter tube and the front side of the movable air filter tube, and the pushing group includes a telescopic rod longitudinally installed at the front end of the fixed air filter tube and the front end of the movable air filter tube and a plurality of horizontal guide rods. A vertical block is fixed on the upper side of the movable air filter tube, and the horizontal guide rod is penetrated by the vertical block of the movable air filter tube adjacent to the lower side. The telescopic end of the telescopic rod is tightly connected to the vertical block of the movable air filter tube adjacent to the lower side.

[0008] A further improved solution, the water filtration system includes a filter water tank, and a guide plate obliquely installed on the inner side of the main cylinder, a liquid storage tank is provided on one side of the top of the guide plate, the bottom of the filter water tank is connected to an inlet pipe through a water pump, the inlet pipe is connected to one side of the main cylinder and is provided on one side of the liquid storage tank, the top of the filter water tank is connected to a return pipe through a water pump, the end of the return pipe is connected to the bottom end of the main cylinder, and the pipe mouth of the air duct is provided on the lower inner side of the guide plate.

[0009] A further improved solution is that a plurality of transverse tubes are installed inside the auxiliary cylinder body, and a connecting hole connected to the auxiliary cylinder body is opened in the middle of the transverse tube, one end of the transverse tube is connected to the main cylinder body, the insert tube is slidably inserted from the other end of the transverse tube, and the side air holes of the insert tube are connected to the connecting hole correspondingly.

[0010] According to a further improved solution, corresponding connecting interfaces are provided on opposite sides of the upper and lower adjacent movable air filter tubes, and the upper side of the topmost movable air filter tube is correspondingly connected to the air outlet of the fixed air filter tube through the interface.

[0011] According to a further improved solution, the insert tube passes through the middle of the upper side of the vertical block and is connected to the inner cavity of the movable air filter tube, and the second activated carbon filter plate is located between the insert tube port and the interface.

[0012] According to a further improved solution, a piston is installed on one side of the top end of the insertion tube, and the piston can be adapted to be movably plugged tightly on the inner side of the transverse tube.

[0013] A further improved scheme, the movable air filter tube includes a first movable air filter tube, a second movable air filter tube and a third movable air filter tube, and the corresponding insert tubes are respectively set as the first insert tube, the second insert tube and the third insert tube, the pushing group on the fixed air filter tube pushes and pulls the first movable air filter tube and the first insert tube slides back and forth, the pushing group on the first movable air filter tube pushes and pulls the second movable air filter tube and the second insert tube slides back and forth, and the pushing group of the second movable air filter tube pushes and pulls the third movable air filter tube and the third insert tube slides back and forth.

[0014] By adopting the above technical solution, the present invention has the following advantages: The treatment equipment of the present invention has multiple switching use states: the first is a dual-path separate filtering state, in which the main cylinder and the auxiliary cylinder are both capable of inhaling waste gas. In the case of an unswitched state, the main cylinder mainly sends the waste gas into the fixed air filter pipe to be filtered once by the first activated carbon filter plate, while the auxiliary cylinder sends the waste gas into the second activated carbon filter plate of each movable air filter pipe through multiple inserts for split flow filtration. In this state, the filtering efficiency of the treatment equipment can be greatly improved; The second is a circulating filtering state. When the first movable air filter tube moves backward, it can drive all the connected second movable air filter tubes and the third movable air filter tubes to move backward, so that the interface of the first movable air filter tube is connected to the air outlet of the fixed air filter tube, and the ends of the first plug tube, the second plug tube and the third plug tube are inserted into the main cylinder, the side air hole is connected to the auxiliary cylinder body and switched to be connected to the auxiliary cylinder body, and the second fan and each electric air valve are closed, so that the exhaust gas filtered once by the original fixed air filter tube can enter each movable air filter tube for multiple filtrations, and the filtered gas is sent back to the main cylinder body for re-circulation filtration, which can greatly improve the circulating filtration effect and efficiency of the exhaust gas; The third is the combined filtering state. In the second circulating filtering state, the second active air filter tube or the third active air filter tube can be controlled to move forward, so that the interfaces of the two adjacent active air filter tubes are staggered and closed, so that the second plug tube or the third plug tube is reconnected with the auxiliary cylinder, and the second fan and the corresponding electric air valve are opened, so that the equipment can perform circulating filtering and single filtering at the same time, which can be used in environments with different exhaust gas concentrations, and the flexibility of use is greatly improved; And during the above filtration, the waste gas that needs to be filtered in the main cylinder can be filtered for dust reduction through the water filtration system, that is, the waste gas in the main cylinder needs to be filtered for dust reduction in each state, which further improves the pretreatment and filtration effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings: Figure 1It is a structural schematic diagram of the present invention; Figure 2 It is a plan view of the main structure of the dual-path separate filtering state of the present invention; Figure 3 For the present invention Figure 2 The structural diagram of A in the figure; Figure 4 It is a structural schematic diagram of the circulating filtering state of the present invention; Figure 5 It is a structural schematic diagram of the combined filtering state of the present invention; Figure 6 It is a structural schematic diagram of another viewing angle of the present invention; In the figure: main cylinder 1, auxiliary cylinder 2, air intake hopper 21, second fan 22, transverse pipe 23, connecting hole 24, water filtration system 3, liquid storage tank 31, guide plate 32, filtered water tank 33, water inlet pipe 34, return pipe 35, air duct 4, first fan 41, fixed air filter pipe 5, first activated carbon filter plate 51, air outlet 52, movable air filter pipe 6, interface 60, first movable air filter pipe 61, second movable air filter pipe 62, third movable air filter pipe 63, second activated carbon filter plate 64, electric air valve 65, vertical block 66, plug 7, side air hole 70, piston 701, first plug 71, second plug 72, third plug 73, push group 8, telescopic rod 81, horizontal guide rod 82. DETAILED DESCRIPTION

[0016] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0017] like Figure 1-6As shown, the present invention provides a circulating activated carbon adsorption waste gas treatment equipment, including a main cylinder 1, a sub-cylinder 2 integrally arranged on one side of the main cylinder 1, and a water filtration system 3 connected to one side of the main cylinder 1, the water filtration system 3 is used to filter water entering the main cylinder 1, the main cylinder 1 is provided with an opening for air intake on the upper side, and the sub-cylinder 2 is connected to an air intake hopper 21 for air intake on the lower side, so that the waste gas can enter the sub-cylinder 2 from the air intake hopper 21, the main cylinder 1 is connected to one side with an air duct 4, the air duct 4 is installed with a first fan 41, and the sub-cylinder 2 is installed with a second fan 22, so that the main cylinder 1 and the sub-cylinder 2 both have the function of absorbing waste gas, wherein a connected fixed air filter pipe 5 is longitudinally installed at the bottom end of the air duct 4, The front end of the fixed air filter tube 5 is slidably connected to a plurality of movable air filter tubes 6 distributed in a stepped manner, and adjacent movable air filter tubes 6 are slidably connected and communicated with each other, and a plug 7 is installed at the top of each movable air filter tube 6. The plug 7 is movably penetrated by the auxiliary cylinder body 2 and one side of the main cylinder body 1, and a side air hole 70 connected to the auxiliary cylinder body 2 is opened on one side of the end of the plug 7. The plug 7 is switched and connected with the auxiliary cylinder body 2 or the main cylinder body 1 as the movable air filter tube 6 is displaced forward and backward, and is used to switch the plug 7 to a blowing or suction state. When blowing, the exhaust gas is mainly blown from the plug 7 to each movable air filter tube 6 for filtration, and when inhaling, the exhaust gas is mainly sent to the main cylinder body 1 for re-filtration through the water filtration system 3 and the fixed air filter tube 5.

[0018] When the movable air filter tube 6 slides backward, it is connected with the fixed air filter tube 5 to form a multi-stage filtering circulation channel, which is the second circulating filtering state. When the movable air filter tube 6 moves backward to drive the corresponding insert tube 7 to be connected with the main cylinder body 1, the electric air valve 65 corresponding to the movable air filter tube 6 is closed. In this state, the exhaust gas filtered once by the fixed air filter tube 5 can enter each movable air filter tube 6 for multiple filtrations, and the filtered gas can be sent back to the main cylinder body 1 for further circulating filtration, which can greatly improve the circulating filtration effect and efficiency of the exhaust gas.

[0019] When the movable air filter tube 6 slides forward, it forms a separate filtering air outlet channel with the fixed air filter tube 5 respectively. When the movable air filter tube 6 moves forward to drive the corresponding insert tube 7 to connect with the auxiliary cylinder body 2, the electric air valve 65 corresponding to the movable air filter tube 6 opens, that is, the first dual-path separate filtering state is formed. At this time, both the main cylinder body 1 and the auxiliary cylinder body 2 can inhale the exhaust gas. The main cylinder body 1 mainly sends the exhaust gas into the fixed air filter tube 5 to be filtered once by the first activated carbon filter plate 51, while the auxiliary cylinder body 2 sends the exhaust gas to the second activated carbon filter plate 64 of each movable air filter tube 6 through multiple insert tubes 7 for diversion filtration, and the exhaust gas is divided into two paths for filtration. In this state, the filtration efficiency of the treatment equipment can be greatly improved.

[0020] Specifically, the movable air filter tube 6 includes a first movable air filter tube 61, a second movable air filter tube 62 and a third movable air filter tube 63, and the corresponding insert tubes 7 of the first movable air filter tube 61, the second movable air filter tube 62 and the third movable air filter tube 63 are respectively set as the first insert tube 71, the second insert tube 72 and the third insert tube 73, the pushing group 8 on the fixed air filter tube 5 pushes and pulls the first movable air filter tube 61 and the first insert tube 71 to slide forward and backward, the pushing group 8 on the first movable air filter tube 61 pushes and pulls the second movable air filter tube 62 and the second insert tube 72 to slide forward and backward, and the pushing group 8 of the second movable air filter tube 62 pushes and pulls the third movable air filter tube 63 and the third insert tube 73 to slide forward and backward. This setting allows the first movable air filter tube 61, the second movable air filter tube 62 and the third movable air filter tube 63 to flexibly switch states and achieve the required circulation, filtering and exhaust effects.

[0021] Among them, a first activated carbon filter plate 51 is installed in the middle of the fixed air filter tube 5 for one-time filtering and adsorption, and an air outlet 52 is opened on the lower side of the fixed air filter tube 5 away from one end of the air duct 4, and two groups of second activated carbon filter plates 64 are installed on the inner side of the movable air filter tube 6, and an electric air valve 65 is installed in the middle of one side of the movable air filter tube 6. The electric air valve 65 is located between the two groups of second activated carbon filter plates 64. This setting allows that when the electric air valve 65 is opened, no matter which way the exhaust gas flows, it needs to be filtered by the second activated carbon filter plate 64, and when the two groups of second activated carbon filter plates 64 are in the second circulation filtration state, the exhaust gas passes through the movable air filter tube 6 to better improve its filtering effect.

[0022] In order to stably control the forward and backward sliding of each movable air filter tube 6, a pushing group 8 for pushing the movable air filter tube 6 adjacent to the lower side to move forward and backward is installed on the front side of the fixed air filter tube 5 and the front side of the movable air filter tube 6. The pushing group 8 includes a telescopic rod 81 and four horizontal guide rods 82 longitudinally installed at the front end of the fixed air filter tube 5 and the front end of the movable air filter tube 6. A vertical block 66 is fixed on the upper side of the movable air filter tube 6. The horizontal guide rod 82 is penetrated by the vertical block 66 of the movable air filter tube 6 adjacent to the lower side. The telescopic end of the telescopic rod 81 is tightly connected with the vertical block 66 of the movable air filter tube 6 adjacent to the lower side, so that the fixed air filter tube 6 can be moved forward and backward. The telescopic rod 81 on the fixed air filter tube 5 can push the first movable air filter tube 61 to move forward and backward on the four horizontal guide rods 82. The first movable air filter tube 61 can push the second movable air filter tube 62 to move forward and backward on the four horizontal guide rods 82 through the telescopic rod 81. The second movable air filter tube 62 can push the third movable air filter tube 63 to move forward and backward on the four horizontal guide rods 82 through the telescopic rod 81, thereby controlling the connectivity of the fixed air filter tube 5, the first movable air filter tube 61, the second movable air filter tube 62 and the third movable air filter tube 63. This method is simpler and more flexible, and is very convenient to use and adjust.

[0023] Furthermore, the water filtration system 3 includes a filtered water tank 33, and a guide plate 32 obliquely installed on the inner side of the main cylinder 1. The guide plate 32 can also be a corrugated guide plate. A liquid storage tank 31 is provided on one side of the top of the guide plate 32. The bottom of the filtered water tank 33 is connected to a water inlet pipe 34 through a water pump. The water inlet pipe 34 is connected to one side of the main cylinder 1 and is arranged on one side of the liquid storage tank 31. Therefore, the filtered water of the filtered water tank 33 is sent into the liquid storage tank 31 through the water pump and the water inlet pipe 34. A porous weir plate can be arranged in the tank to evenly distribute the water flow to ensure that a stable overflow is formed after the liquid level reaches the designed height; the water in the liquid storage tank 31 overflows upward and obliquely downwards along the guide plate 32 to form a water curtain wall. The inclination angle of the guide plate 32 can be 30-60°, and the upper surface of the guide plate 32 can be processed with a V-shaped guide groove with a depth of 0.5 mm. The downstream water flow forms a continuous water film under the action of gravity acceleration, which is beneficial to increasing the coverage area of ​​the water curtain. When the dust-containing exhaust gas penetrates the water curtain wall, it can be effectively dusted. The top of the filter water tank 33 is connected to a return pipe 35 through a water pump. The end of the return pipe 35 is connected to the bottom end of the main cylinder 1. The pipe mouth of the air duct 4 is arranged on the lower side of the guide plate 32. The wastewater after dust settling and filtration enters the fixed air filter pipe 5 through the pipe mouth of the air duct 4, and the wastewater flows back to the filter water tank 33 through the bottom of the main cylinder 1. The three-stage stepped filter bed arranged in the filter water tank 33 is mainly composed of a 20-mesh stainless steel mesh, a bentonite filter layer and activated carbon fiber, which can achieve large-area interception of suspended matter, and the filtered water is again sent to the liquid storage tank 31 by the water pump and the water inlet pipe 34 at the bottom of the filter water tank 33 for circulation filtration, which greatly saves the investment cost.

[0024] Furthermore, in order to allow the cannula 7 to stably slide forward and backward, three transverse tubes 23 are installed on the inner side of the auxiliary cylinder 2, and a connecting hole 24 connected to the auxiliary cylinder 2 is opened in the middle of the transverse tube 23. One end of the transverse tube 23 is connected to the main cylinder 1, and the cannula 7 slides and penetrates through the other end of the transverse tube 23. In this way, the transverse tube 23 can guide the cannula 7 and maintain the separation between the main cylinder 1 and the auxiliary cylinder 2, so that the exhaust gas does not easily flow into each other. At the same time, the side air hole 70 of the cannula 7 is connected with the connecting hole 24 correspondingly, so that the cannula 7 has a connecting path with the auxiliary cylinder 2 and the main cylinder 1, and the blowing and suction states are switched with the displacement of the cannula 7.

[0025] Moreover, in order to enable the upper and lower adjacent movable air filter tubes 6 to be connected, corresponding connecting interfaces 60 are opened on the opposite sides of the movable air filter tubes 6, and the upper side of the topmost movable air filter tube 6 is correspondingly connected to the air outlet 52 of the fixed air filter tube 5 through the interface 60. The interface 60 is not restricted in shape and has corresponding sizes. Among them, the insert tube 7 passes through the middle part of the upper side of the vertical block 66 and is connected to the inner cavity of the movable air filter tube 6. The second activated carbon filter plate 64 is located between the port of the insert tube 7 and the interface 60. In this way, no matter whether the insert tube 7 is blowing or inhaling, it needs to be filtered through two groups of second activated carbon filter plates 64, and the unfiltered exhaust gas will not escape from the opened electric air valve 65. The structure is simple and ingenious.

[0026] A further improved solution is that a piston 701 is installed on one side of the top end of the insert tube 7, and the piston 701 can be adapted to be movably plugged in the inner side of the cross tube 23. The setting of the piston 701 can make the insert tube 7 inserted into the cross tube 23 more tightly, improve the sealing effect, and allow the main cylinder body 1 and the auxiliary cylinder body 2 to form a separate cavity.

[0027] In a more specific embodiment, the treatment equipment of the present invention has a plurality of switching use states. When the first dual-path single filtering state is used: the first fan 41 and the second fan 22 are both started, so that the main cylinder 1 and the auxiliary cylinder 2 set therein can both inhale the exhaust gas. At this time, the filter water box 33 sends the filtered water into the liquid storage tank 31 through the water pump and the water inlet pipe 34. A porous weir plate can be set in the tank to evenly distribute the water flow to ensure that a stable overflow is formed after the liquid level reaches the designed height. The water in the liquid storage tank 31 overflows upward and tilts downward along the guide plate 32 to form a water curtain wall. When the dust-containing exhaust gas of the main cylinder 1 penetrates the water curtain wall, it can be effectively dusted by water. In the unswitched state, the first fan 41 sends the pretreated exhaust gas into the fixed air filter pipe 5 to be filtered once by the first activated carbon filter plate 51, and the auxiliary cylinder 2 sends the exhaust gas into the second activated carbon filter plate 64 of each movable air filter pipe 6 through a plurality of intubations 7 for diversion filtration. In this state, the filtration efficiency of the treatment equipment can be greatly improved. When switching to the second circulation filtering state, the first movable air filter tube 61 is pulled backward by the telescopic rod 81 of the fixed air filter tube 5, which can drive all the connected second movable air filter tubes 62 and the third movable air filter tubes 63 to move backward, so that the interface 60 of the first movable air filter tube 61 is connected with the air outlet 52 of the fixed air filter tube 5, and the ends of the first plug tube 71, the second plug tube 72 and the third plug tube 73 are inserted into the main cylinder 1, and the side air hole 70 is switched from being connected with the auxiliary cylinder 2 to being connected with the auxiliary cylinder 2, and the second fan 22 and each electric air valve 65 are closed, so that the exhaust gas filtered once by the fixed air filter tube 5 can enter each movable air filter tube 6 for multiple filtrations, and the filtered gas is sent back to the main cylinder 1 for recirculation filtration, which can greatly improve the circulation filtration effect and efficiency of the exhaust gas; When switching to the third combined filtering state, in the above-mentioned second circulating filtering state, the second active air filter tube 62 or the third active air filter tube 63 can be controlled to move forward so that the interfaces 60 of the two adjacent active air filter tubes 6 are staggered and closed, so that the second insert tube 72 or the third insert tube 73 can be reconnected with the auxiliary cylinder 2, and the second fan 22 and the corresponding electric air valve 65 can be opened, so that the equipment can perform circulating filtering and single filtering at the same time, and can be used in environments with different exhaust gas concentrations, and the flexibility of use is greatly improved.

[0028] The above embodiments show and describe the basic principles and main features of the invention and the advantages of the invention. Those skilled in the art should understand that the invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the invention. Without departing from the spirit and scope of the invention, the invention may have various changes and improvements, which shall fall within the scope of the invention to be protected. The scope of protection of the invention shall be defined by the attached claims and their equivalents.

Claims

1. A circulating activated carbon adsorption waste gas treatment equipment, characterized in that: The invention comprises a main cylinder (1), a secondary cylinder (2) integrally arranged on one side of the main cylinder (1), and a water filtering system (3) connected to one side of the main cylinder (1); the upper side of the main cylinder (1) is provided with an opening for air intake; the lower side of the secondary cylinder (2) is connected to an air intake hopper (21) for air intake; one side of the main cylinder (1) is connected to an air duct (4); the air duct (4) is equipped with a first fan (41); the secondary cylinder (2) is equipped with a second fan (22); and a fixed air filter pipe (5) is longitudinally installed at the bottom end of the air duct (4); The front end of the fixed air filter tube (5) is slidably connected to a plurality of movable air filter tubes (6) distributed in a stepped manner, and when the movable air filter tube (6) slides backward, it is connected to the fixed air filter tube (5) to form a multi-stage filtering circulation channel, and when the movable air filter tube (6) slides forward, it forms a separate filtering air outlet channel with the fixed air filter tube (5); The adjacent movable air filter tubes (6) are connected and communicated with each other by sliding forward and backward, and a plug tube (7) is installed at the top of each movable air filter tube (6). The plug tube (7) is movably penetrated by the auxiliary cylinder (2) and one side of the main cylinder (1), and a side air hole (70) connected to the auxiliary cylinder (2) is opened on one side of the end of the plug tube (7). The plug tube (7) switches to communicate with the auxiliary cylinder (2) or the main cylinder (1) as the movable air filter tube (6) moves forward and backward, so as to switch the blowing or suction state of the plug tube (7).

2. A circulating activated carbon adsorption waste gas treatment equipment according to claim 1, characterized in that: A first activated carbon filter plate (51) is installed in the middle of the fixed air filter tube (5), and an air outlet (52) is provided at the lower side of one end of the fixed air filter tube (5) away from the air duct (4). Two groups of second activated carbon filter plates (64) are installed inside the movable air filter tube (6), and an electric air valve (65) is installed in the middle of one side of the movable air filter tube (6), and the electric air valve (65) is located between the two groups of second activated carbon filter plates (64).

3. A circulating activated carbon adsorption waste gas treatment equipment according to claim 2, characterized in that: When the movable air filter tube (6) moves forward to drive the corresponding insert tube (7) to communicate with the auxiliary cylinder (2), the electric air valve (65) corresponding to the movable air filter tube (6) opens; when the movable air filter tube (6) moves backward to drive the corresponding insert tube (7) to communicate with the main cylinder (1), the electric air valve (65) corresponding to the movable air filter tube (6) closes.

4. A circulating activated carbon adsorption waste gas treatment equipment according to claim 3, characterized in that: A pushing group (8) for pushing the movable air filter tube (6) adjacent to the lower side to move forward and backward is installed on the front side of the fixed air filter tube (5) and the front side of the movable air filter tube (6). The pushing group (8) comprises a telescopic rod (81) longitudinally installed at the front end of the fixed air filter tube (5) and the front end of the movable air filter tube (6) and a plurality of horizontal guide rods (82). A vertical block (66) is fixedly provided on the upper side of the movable air filter tube (6). The horizontal guide rod (82) is penetrated by the vertical block (66) of the movable air filter tube (6) adjacent to the lower side. The telescopic end of the telescopic rod (81) is tightly connected to the vertical block (66) of the movable air filter tube (6) adjacent to the lower side.

5. A circulating activated carbon adsorption waste gas treatment equipment according to claim 4, characterized in that: The water filtration system (3) comprises a filtration water tank (33), and a guide plate (32) obliquely mounted on the inner side of the main cylinder (1); a liquid storage tank (31) is provided on one side of the top of the guide plate (32); the bottom of the filtration water tank (33) is connected to a water inlet pipe (34) via a water pump; the water inlet pipe (34) is connected to one side of the main cylinder (1) and is arranged on one side of the liquid storage tank (31); the top of the filtration water tank (33) is connected to a water return pipe (35) via a water pump; the end of the water return pipe (35) is connected to the bottom end of the main cylinder (1); and the pipe opening of the air duct (4) is arranged on the lower inner side of the guide plate (32).

6. A circulating activated carbon adsorption waste gas treatment equipment according to claim 5, characterized in that: A plurality of transverse tubes (23) are installed inside the secondary cylinder body (2), and a communication hole (24) communicating with the secondary cylinder body (2) is opened in the middle of the transverse tube (23); one end of the transverse tube (23) is connected to the main cylinder body (1); the insert tube (7) is slidably inserted through the other end of the transverse tube (23), and the side air hole (70) of the insert tube (7) is correspondingly connected to the communication hole (24).

7. A circulating activated carbon adsorption waste gas treatment equipment according to claim 6, characterized in that: Corresponding communicating interfaces (60) are provided on opposite sides of the upper and lower adjacent movable air filter tubes (6), and the upper side of the topmost movable air filter tube (6) is correspondingly connected to the air outlet (52) of the fixed air filter tube (5) through the interface (60).

8. The circulating activated carbon adsorption waste gas treatment equipment according to claim 7 is characterized in that: The insert tube (7) passes through the middle of the upper side of the vertical block (66) and is connected to the inner cavity of the movable air filter tube (6); the second activated carbon filter plate (64) is located between the insert tube (7) port and the interface (60).

9. The circulating activated carbon adsorption waste gas treatment equipment according to claim 8, characterized in that: A piston (701) is installed on one side of the top end of the insertion tube (7), and the piston (701) can be adapted to be movably plugged into the inner side of the transverse tube (23).

10. The circulating activated carbon adsorption waste gas treatment equipment according to claim 9, characterized in that: The movable air filter tube (6) comprises a first movable air filter tube (61), a second movable air filter tube (62) and a third movable air filter tube (63), and the corresponding insert tubes (7) are respectively arranged as a first insert tube (71), a second insert tube (72) and a third insert tube (73); the pushing group (8) on the fixed air filter tube (5) pushes and pulls the first movable air filter tube (61) and the first insert tube (71) to slide forward and backward; the pushing group (8) on the first movable air filter tube (61) pushes and pulls the second movable air filter tube (62) and the second insert tube (72) to slide forward and backward; and the pushing group (8) of the second movable air filter tube (62) pushes and pulls the third movable air filter tube (63) and the third insert tube (73) to slide forward and backward.

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