Chemical equipment waste gas adsorption separation device and method

Abstract

The application provides a chemical equipment waste gas adsorption separation device and method, and belongs to the technical field of waste gas adsorption separation.The device comprises a feeding pipe assembly, a separation tank assembly, an air bag assembly, a compression assembly, an air cylinder assembly, an adsorption assembly and an adsorption reversing assembly; the feeding pipe assembly is fixedly connected with the separation tank assembly and communicates with the separation tank assembly; the air bag assembly is located in the interior of the separation tank assembly; the compression assembly is located in the interior of the separation tank assembly; a first air bag connecting air pipe of the air cylinder assembly communicates with the first air bag assembly; a second air bag connecting air pipe of the air cylinder assembly communicates with the second air bag assembly; and the adsorption assembly and the separation tank assembly are connected through the adsorption reversing assembly.The application has remarkable advantages in improving waste gas treatment efficiency, improving adsorption capacity, reducing energy consumption and land occupation and the like, and solves the problem that when active carbon is unidirectionally adsorbed, the front end of the active carbon bed layer is saturated and the rear end of the active carbon is not fully utilized.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of waste gas adsorption separation, and particularly relates to a waste gas adsorption separation device and method for chemical equipment. BACKGROUND

[0002] Chemical equipment waste gas refers to the gas containing pollutants discharged by various devices and equipment in the chemical production process. These waste gases usually contain toxic and harmful chemical substances, long-term contact with which can cause harm to human health, and some flammable and explosive chemical waste gases also have safety hazards. In addition, some waste gases with strong odor also affect the quality of life of surrounding residents. In order to control and reduce the harm of chemical waste gas to the environment and human body, the chemical equipment waste gas must be treated. The common treatment methods currently include adsorption method, absorption method, catalytic oxidation method, low-temperature plasma method, membrane separation method, incineration method and biological method, etc.

[0003] Compared with other waste gas treatment technologies, the initial investment and operation cost of the activated carbon adsorption device are low, the structure is simple, no complex process control is needed, maintenance is convenient, and the activated carbon has a large specific surface area and porous structure, which can effectively adsorb various pollutants in organic waste gas, and is suitable for treating various types of chemical equipment waste gas. At the same time, the saturated activated carbon can be reused after regeneration treatment, reducing the generation of waste, so the activated carbon adsorption method is currently widely used. However, the capacity of the activated carbon adsorption device in the prior art is limited. Firstly, the pressure of the waste gas is not high or the process of increasing the pressure of the waste gas is complex, and it is impossible to avoid the influence of solid impurities. Secondly, the activated carbon is usually adsorbed in one direction, which causes the activated carbon bed layer to be saturated at the front end and the activated carbon at the rear end to be not fully utilized, affecting the adsorption effect.

[0004] A waste gas treatment activated carbon adsorption device is disclosed in the authorized announcement No. CN221637605U, which comprises a storage box, a cavity is formed in the upper side of the inner wall of the storage box, a motor is fixedly connected to the rear of the upper side of the inner wall of the cavity, a first screw rod is fixedly connected to the output end of the motor, a second screw rod is rotatably connected to the front of the upper side of the inner wall of the cavity, chain wheels are fixedly connected to the upper sides of the rod walls of the first screw rod and the second screw rod, chains are arranged on the surfaces of the two chain wheels, and activated carbon plates are fixedly connected to the centers of the inner walls of the upper and lower sides of the storage box. The utility model avoids the accumulation of dust on the surface of the equipment during long-term use of the equipment, thereby improving the filtering effect of the equipment on the waste gas, improving the working efficiency of the equipment, reducing the workload of the employees when cleaning the activated carbon plates, and increasing the use effect of the equipment. However, the utility model does not provide the pressure and separation effect of the front end of the waste gas, and still uses the one-way adsorption method, which affects the overall adsorption efficiency. SUMMARY

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a waste gas adsorption and separation device and method for chemical equipment, which effectively solves the problem that the capacity of the activated carbon adsorption device in the prior art is limited. First, the pressure of the waste gas is not high or the process of increasing the waste gas pressure is complicated, and the influence of solid impurities on it cannot be avoided. Second, one-way adsorption is mostly used for activated carbon, resulting in saturated adsorption at the front end of the activated carbon bed and insufficient utilization of the activated carbon at the rear end, affecting the adsorption effect.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a chemical equipment waste gas adsorption and separation device, comprising a feed pipe assembly, a separation box assembly, a first airbag assembly, a second airbag assembly, a first compression assembly, a second compression assembly, a cylinder assembly, an adsorption assembly and an adsorption reversing assembly; the feed pipe assembly is fixedly connected and communicated with the separation box assembly; the first airbag assembly and the second airbag assembly are both located inside the separation box assembly; the first compression assembly and the second compression assembly are both located inside the separation box assembly; the first airbag connecting air pipe of the cylinder assembly is communicated with the first airbag assembly, and the second airbag connecting air pipe of the cylinder assembly is connected with the second airbag assembly; the adsorption assembly and the separation box assembly are connected through the adsorption reversing assembly.

[0007] Preferably, the feed pipe assembly includes a main feed pipe, a first branch pipe and a second branch pipe, the first branch pipe and the second branch pipe are both connected to the main feed pipe, and a total inlet shut-off valve is provided at the front end of the main feed pipe.

[0008] Preferably, the separation box assembly includes a separation box body, a first feed pipe of the separation box, a second feed pipe of the separation box, a first discharge pipe of the separation box, a second discharge pipe of the separation box, a partition in the separation box and a miscellaneous storage component. The first feed pipe of the separation box and the second feed pipe of the separation box are both connected to the separation box body, the first feed pipe of the separation box is connected to the first distribution pipe, the second feed pipe of the separation box is connected to the second distribution pipe, the first discharge pipe of the separation box and the second discharge pipe of the separation box are both connected to the separation box body, the partition in the separation box is located inside the separation box body and is fixedly connected thereto, the partition in the separation box divides the separation box body into two chambers C and D, and the miscellaneous storage component is located at the bottom of the separation box body and is connected thereto.

[0009] Preferably, a first one-way valve is provided on the first feed pipe of the separation box, a third one-way valve is provided on the first discharge pipe of the separation box, a second one-way valve is provided on the second feed pipe of the separation box, and a fourth one-way valve is provided on the second discharge pipe of the separation box.

[0010] Preferably, the first compression assembly is located at the top of the inner wall of the C chamber of the separation box body, and the first compression assembly includes a fixed box body, a first spring and a first movable plate. The fixed box body is fixedly connected to the separation box body, and one end of the first spring is connected to the separation box body, and the other end is connected to the first movable plate.

[0011] Preferably, the second compression assembly is located at the top of the inner wall of the D chamber of the separation box body, and the second compression assembly includes the fixed box body, a second spring and a second movable plate, one end of the second spring is connected to the separation box body, and the other end is connected to the second movable plate.

[0012] Preferably, the cylinder assembly also includes a cylinder body, an electric cylinder assembly, a piston rod and a piston. The electric cylinder assembly is located on one side of the cylinder body and is fixedly connected to it. The piston rod and the piston are both located inside the cylinder body. The piston divides the cylinder body into two chambers A and B, wherein the chamber A of the cylinder body is connected to the first airbag connecting air pipe, and the chamber B of the cylinder body is connected to the second airbag connecting air pipe.

[0013] Preferably, the adsorption assembly includes an adsorption box body, a sealing door, and an activated carbon bed. The activated carbon bed is located inside the adsorption box body, and the sealing door is rotatably connected to the adsorption box body.

[0014] Preferably, the adsorption reversing assembly includes a separation box exhaust main pipe, a first pipe assembly, a second pipe assembly, a third pipe assembly, a fourth pipe assembly and a main discharge pipe, the separation box exhaust main pipe is respectively connected to the first discharge pipe of the separation box and the second discharge pipe of the separation box, one end of the first pipe assembly is connected to the separation box exhaust main pipe, and the other end is connected to the adsorption box body, one end of the second pipe assembly is connected to the adsorption box body, and the other end is connected to the main discharge pipe, one end of the third pipe assembly is connected to the first pipe assembly, and the other end is connected to the second pipe assembly, one end of the fourth pipe assembly is connected to the first pipe assembly, and the other end is connected to the second pipe assembly, the first pipe assembly is provided with a first stop valve, the second pipe assembly is provided with a second stop valve, the third pipe assembly is provided with a third stop valve, and the fourth pipe assembly is provided with a fourth stop valve.

[0015] The present invention also provides a method for using a waste gas adsorption separation device for chemical equipment, which comprises the following steps:

[0016] S1, the waste gas of chemical equipment enters the C chamber and D chamber of the separation tank body from the feed pipe assembly respectively, due to the change of flow rate and direction, the large particle solid falls into the storage assembly, the air cylinder assembly is started, the piston rod drives the piston to move from the B chamber to the A chamber of the cylinder body;

[0017] S2, at this time, the volume of the A chamber of the cylinder body becomes smaller, the first air bag assembly is inflated through the first air bag connecting pipe, the volume of the first air bag assembly becomes larger, the waste gas in the C chamber of the separation tank body is compressed, the pressure rises, the first spring is compressed, driving the first moving plate to move upward, when the pressure of the gas in the C chamber of the separation tank body reaches the set value of the third one-way valve, the high-pressure gas in the C chamber of the separation tank body enters the separation tank exhaust main pipe;

[0018] S3, when the piston rod drives the piston to reverse, the volume of the B chamber of the cylinder body becomes smaller, the second air bag assembly is inflated through the second air bag connecting pipe, the volume of the second air bag assembly becomes larger, the waste gas in the D chamber of the separation tank body is compressed, the pressure rises, the second spring is compressed, driving the second moving plate to move upward, when the pressure of the gas in the D chamber of the separation tank body reaches the set value of the fourth one-way valve, the high-pressure gas in the D chamber of the separation tank body enters the separation tank exhaust main pipe, at the same time, the volume of the A chamber of the cylinder body becomes larger, the air pressure decreases, the first air bag assembly restores, the gas pressure in the C chamber of the separation tank body decreases, the first spring restores, driving the first moving plate to move downward, the waste gas of chemical equipment enters the C chamber of the separation tank body from the first feed pipe of the separation tank;

[0019] S4, when the piston rod drives the piston to reverse again, the first air bag assembly is inflated, the first moving plate moves upward, the gas in the C chamber of the separation tank body is pressurized and then enters the separation tank exhaust main pipe, at the same time, the second air bag assembly restores, the second moving plate moves downward, the waste gas of chemical equipment enters the D chamber of the separation tank body from the second feed pipe of the separation tank;

[0020] S5, repeat the steps of S3 to S4 above, through the up and down reciprocating motion of the moving plate, the solid particles adsorbed by it fall, the solid particles are secondarily separated, and the waste gas of chemical equipment is pressurized and delivered to the separation tank exhaust main pipe;

[0021] S6, keep the first stop valve and the second stop valve in the open state, and the third stop valve and the fourth stop valve in the closed state, the waste gas of the above S5 step enters the adsorption assembly in the forward direction, and is delivered to the specified position through the total exhaust pipe after purification;

[0022] S7, after a preset time, close the first stop valve and the second stop valve, and open the third stop valve and the fourth stop valve, the waste gas of the above S5 step enters the adsorption assembly in the reverse direction, and is delivered to the specified position through the total exhaust pipe after purification.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] (1) The present invention provides a waste gas adsorption and separation device for chemical equipment, which has significant advantages in improving waste gas treatment efficiency, enhancing adsorption capacity, reducing energy consumption and floor space, etc. through the arrangement of a feed pipe assembly, a separation box assembly, a first airbag assembly, a second airbag assembly, a first compression assembly, a second compression assembly, a cylinder assembly, an adsorption assembly and an adsorption reversing assembly. The application of this device helps to significantly reduce the environmental impact of the chemical production process and has important engineering application value.

[0025] (2) The present invention provides a chemical equipment waste gas adsorption and separation device, which is provided with a storage component. After the chemical equipment waste gas containing solid impurities enters the separation box body, due to the changes in flow rate and direction, large particles of solids quickly fall into the storage component, and some small and medium particles are adsorbed on the first movable plate and the second movable plate. Through the change of gas pressure in the separation box body, the first movable plate and the second movable plate are made to reciprocate, thereby achieving secondary separation of solids.

[0026] (3) The present invention provides a waste gas adsorption and separation device for chemical equipment, which realizes periodic inflation and reduction of the airbag assembly through the reciprocating motion of the cylinder assembly, while the solid impurities in the waste gas of the chemical equipment do not affect the movement of the airbag, thereby avoiding the sealing problems caused by the traditional cylinder directly pressurizing the waste gas of the chemical equipment containing solid impurities and the wear of the seals by the solid impurities, thereby affecting the sealing effect.

[0027] (4) The present invention provides a waste gas adsorption and separation device for chemical equipment. Although the adsorption reversing component has a simple structure, it can be reversed in time according to the on-site conditions, solving the problem that the front end of the activated carbon bed is saturated with adsorption while the activated carbon at the rear end is not fully utilized during unidirectional adsorption of activated carbon. The present invention is easy to operate, and the overall structure of the present invention is compact, and one-way valves are used in multiple places, which has high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is an overall three-dimensional schematic diagram of the present invention;

[0029] Figure 2 It is a structural schematic diagram of the feed pipe assembly of the present invention;

[0030] Figure 3 It is a structural schematic diagram of the separation box assembly of the present invention;

[0031] Figure 4 It is a schematic diagram of the internal structure of the separation box assembly of the present invention;

[0032] Figure 5 The present invention Figure 4Partial enlarged schematic view;

[0033] Figure 6 is a structural schematic view of the cylinder assembly of the present application;

[0034] Figure 7 is a schematic view of the connection of each pipeline of the valve-containing adsorption reversing assembly of the present application;

[0035] Figure 8 is a schematic view of the connection of the adsorption reversing assembly and the adsorption assembly of the present application.

[0036] In the figure: 100, feed pipe assembly; 101, total inlet stop valve; 110, main feed pipe; 120, first sub-feed pipe; 130, second sub-feed pipe; 200, separation tank assembly; 210, separation tank body; 220, separation tank first feed pipe; 221, first one-way valve; 230, separation tank second feed pipe; 231, second one-way valve; 240, separation tank first discharge pipe; 241, third one-way valve; 250, separation tank second discharge pipe; 251, fourth one-way valve; 260, separation tank middle partition plate; 270, impurity storage assembly; 300, first air bag assembly; 400, second air bag assembly; 500, first compression assembly; 510, first spring; 520, first moving plate; 600, second compression assembly; 610, second spring; 620, second moving plate; 700, cylinder assembly; 710, cylinder body; 720, electric cylinder assembly; 730, piston rod; 740, piston; 750, first air bag connecting air pipe; 760, second air bag connecting air pipe; 800, adsorption assembly; 900, adsorption reversing assembly; 910, separation tank exhaust main pipeline; 920, first pipeline assembly; 921, first stop valve; 930, second pipeline assembly; 931, second stop valve; 940, third pipeline assembly; 941, third stop valve; 950, fourth pipeline assembly; 951, fourth stop valve; 960, total discharge pipeline. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0038] It should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated components or elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0039] It should be understood that, in the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense.

[0040] Example 1

[0041] See attached Figures 1 to 8 The present embodiment provides a chemical equipment waste gas adsorption and separation device, which includes a feed pipe assembly 100, a separation box assembly 200, a first airbag assembly 300, a second airbag assembly 400, a first compression assembly 500, a second compression assembly 600, a cylinder assembly 700, an adsorption assembly 800 and an adsorption reversing assembly 900.

[0042] Waste gas from chemical equipment enters the separation box assembly 200 through the feed pipe assembly 100, and large solid particles fall to the bottom of the separation box assembly 200. The movement of the cylinder assembly 700 causes the airbag assembly to be inflated or reduced, so that the gas in the separation box assembly 200 is pressurized and enters the adsorption reversing assembly 900 and then enters the adsorption assembly 800 for purification and then discharge. During the suction and exhaust process of the separation box assembly 200, the reciprocating motion of the compression assembly causes the adsorbed solid particles to fall, making the solid separation more thorough.

[0043] The feed pipe assembly 100 is fixedly connected and communicated with the separation box assembly 200; the feed pipe assembly 100 includes a main feed pipe 110, a first branch pipe 120 and a second branch pipe 130, the first branch pipe 120 and the second branch pipe 130 are both communicated with the main feed pipe 110, and a total inlet stop valve 101 is provided at the front end of the main feed pipe 110.

[0044] The separation box assembly 200 includes a separation box body 210, a first feed pipe 220 for the separation box, a second feed pipe 230 for the separation box, a first discharge pipe 240 for the separation box, a second discharge pipe 250 for the separation box, a partition 260 in the separation box, and a storage component 270. The separation box body 210 is a rectangular hollow structure. The separation box body 210 is fixedly connected to the foundation through a support (not shown in the figure). The first feed pipe 220 for the separation box and the second feed pipe 230 for the separation box are located on the front side of the separation box body 210. The first feed pipe 220 for the separation box and the second feed pipe 230 for the separation box are both connected to the separation box body 210. The first feed pipe 220 for the separation box and the second feed pipe 230 for the separation box are connected to the separation box body 210. 220 is connected with the first distribution pipe 120, the second feed pipe 230 of the separation box is connected with the second distribution pipe 130, the first discharge pipe 240 of the separation box and the second discharge pipe 250 of the separation box are located at the top of the separation box body 210, the first discharge pipe 240 of the separation box and the second discharge pipe 250 of the separation box are both connected with the separation box body 210, the partition 260 in the separation box is located inside the separation box body 210 and is fixedly connected thereto, the partition 260 in the separation box divides the separation box body 210 into two chambers C and D, there are two miscellaneous storage components 270, the miscellaneous storage components 270 are located at the bottom of the separation box body 210 and are connected thereto.

[0045] The first feed pipe 220 and the first discharge pipe 240 of the separation box are both connected to the C chamber of the separation box body 210, the first feed pipe 220 of the separation box is provided with a first one-way valve 221, the first discharge pipe 240 of the separation box is provided with a third one-way valve 241, the second feed pipe 230 and the second discharge pipe 250 of the separation box are both connected to the D chamber of the separation box body 210, the second feed pipe 230 of the separation box is provided with a second one-way valve 231, the second discharge pipe 250 of the separation box is provided with a fourth one-way valve 251, and a stop valve is provided at the bottom of the storage component 270.

[0046] The first airbag assembly 300 and the second airbag assembly 400 are both located within the separator box assembly 200 and fixedly connected thereto. The direct connection between the airbag assembly and the separator box is a well-established technique and will not be detailed here. The number of airbag assemblies in the present invention can be expanded based on the size and location of the separator box body 210 by simply adding appropriate three-way or four-way connectors at the air pipe connection.

[0047] The first compression assembly 500 and the second compression assembly 600 are both located inside the separation box assembly 200 and fixedly connected thereto; the first compression assembly 500 is located at the top of the inner wall of the C chamber of the separation box body 210, and the first compression assembly 500 includes a fixed box body, a first spring 510 and a first movable plate 520. The fixed box body is fixedly connected to the separation box body 210, and one end of the first spring 510 is connected to the separation box body 210, and the other end is connected to the first movable plate 520.

[0048] The second compression assembly 600 is located at the top of the inner wall of the D chamber of the separation box body 210. The second compression assembly 600 includes a fixed box body, a second spring 610 and a second movable plate 620. One end of the second spring 610 is connected to the separation box body 210, and the other end is connected to the second movable plate 620.

[0049] It should be noted that the structural dimensions of the first compression assembly 500 and the second compression assembly 600 can be completely consistent, but when the present invention is used, except for the initial state, the telescopic states of the first spring 510 and the second spring 610 are different, and the distance between the first movable plate 510 and the top inner wall of the separation box body 210 is different from the distance between the second movable plate 610 and the top inner wall of the separation box body 210.

[0050] The cylinder assembly 700 is located outside the separation box assembly 200. The cylinder assembly 700 includes a cylinder body 710, an electric cylinder assembly 720, a piston rod 730, a piston 740, a first airbag connecting air pipe 750, and a second airbag connecting air pipe 760. The cylinder assembly 700 is fixedly connected to the foundation through a support (not shown in the figure). The electric cylinder assembly 720 is located on one side of the cylinder body 710 and is fixedly connected thereto. The piston rod 730 and the piston 740 are both located inside the cylinder body 710. The piston 740 divides the cylinder body 710 into two chambers, A and B. Chamber A of the cylinder body 710 is connected to the first airbag connecting air pipe 750, and chamber B of the cylinder body 710 is connected to the second airbag connecting air pipe 760.

[0051] The first airbag connecting air pipe 750 is connected to the first airbag assembly 300, and the second airbag connecting air pipe 760 is connected to the second airbag assembly 400; in actual application, the piston 740 is usually placed in the middle position of the cylinder body 710 as the starting position of the cylinder assembly 700.

[0052] The adsorption assembly 800 includes an adsorption box body, a sealed door, and an activated carbon bed. The adsorption box body is fixedly connected to the foundation through a support (not shown in the figure), the activated carbon bed is located inside the adsorption box body, and the sealed door is rotatably connected to the adsorption box body.

[0053] The adsorption assembly 800 and the separation box assembly 200 are connected through the adsorption reversing assembly 900; the adsorption reversing assembly 900 includes a separation box exhaust main pipe 910, a first pipe assembly 920, a second pipe assembly 930, a third pipe assembly 940, a fourth pipe assembly 950 and a main discharge pipe 960, the separation box exhaust main pipe 910 is respectively connected to the separation box first discharge pipe 240 and the separation box second discharge pipe 250, one end of the first pipe assembly 920 is connected to the separation box exhaust main pipe 910, and the other end is connected to the adsorption box body, one end of the second pipe assembly 930 is connected to the adsorption box body, and the other end is connected to the main discharge pipe 960 One end of the third pipeline assembly 940 is connected to the first pipeline assembly 920, and the other end is connected to the second pipeline assembly 930. One end of the fourth pipeline assembly 950 is connected to the first pipeline assembly 920, and the other end is connected to the second pipeline assembly 930. The first pipeline assembly 920 is provided with a first stop valve 921, and the second pipeline assembly 930 is provided with a second stop valve 931. The third pipeline assembly 940 is provided with a third stop valve 941, and the fourth pipeline assembly 950 is provided with a fourth stop valve 951. The first stop valve 921 is located at the front end of the fourth stop valve 951, and the third stop valve 941 is located at the front end of the second stop valve 931.

[0054] It should be noted that the stop valves and one-way valves are all existing mature technologies, and the flange connections between the pipelines are all existing technologies. The present invention adopts a schematic method for connecting the stop valves, one-way valves and the pipelines.

[0055] The present invention also provides a method for using the above-mentioned chemical equipment waste gas adsorption separation device, which comprises the following steps:

[0056] S1, chemical equipment exhaust gas enters chambers C and D of separation box body 210 through feed pipe assembly 100. Due to changes in flow rate and direction, large solid particles fall into storage assembly 270. Cylinder assembly 700 is activated, causing piston rod 730 to drive piston 740 from chamber B of cylinder body 710 to chamber A.

[0057] S2, at this time, the volume of chamber A of the cylinder body 710 decreases, and the first airbag assembly 300 is inflated through the first airbag connecting air pipe 750, causing the volume of the first airbag assembly 300 to increase. The exhaust gas in chamber C of the separation box body 210 is compressed, and the pressure increases. The first spring 510 is compressed, driving the first movable plate 520 to move upward. When the pressure of the gas in chamber C of the separation box body 210 reaches the set value of the third one-way valve 241, the high-pressure gas in chamber C of the separation box body 210 enters the separation box exhaust main pipe 910;

[0058] S3, when the piston rod 730 drives the piston 740 to reverse the movement, the volume of the B chamber of the cylinder 710 decreases, and the second airbag connecting air pipe 760 is used to inflate the second airbag assembly 400, and the volume of the second airbag assembly 400 increases. The exhaust gas in the D chamber of the separation box body 210 is compressed, and the pressure increases. The second spring 610 is compressed, driving the second movable plate 620 to move upward. When the pressure of the gas in the D chamber of the separation box body 210 reaches the fourth one-way valve 251, the exhaust gas in the D chamber of the separation box body 210 is compressed, and the pressure increases. When the set value is reached, the high-pressure gas in the D chamber of the separation box body 210 enters the separation box exhaust main pipe 910. At the same time, the volume of the A chamber of the cylinder body 710 increases, the air pressure decreases, the first airbag assembly 300 recovers, the gas pressure in the C chamber of the separation box body 210 decreases, the first spring 510 recovers, and drives the first movable plate 520 to move downward. The exhaust gas from the chemical equipment enters the C chamber of the separation box body 210 from the first distribution pipe 120 through the first feed pipe 220 of the separation box.

[0059] S4, when the piston rod 730 drives the piston 740 to reverse again, the first airbag assembly 300 is inflated, the first movable plate 520 moves upward, and the gas in chamber C of the separation box body 210 is pressurized and enters the separation box exhaust main pipe 910. At the same time, the second airbag assembly 400 is restored, the second movable plate 620 moves downward, and the chemical equipment exhaust gas enters chamber D of the separation box body 210 through the second distribution pipe 130 and the second feed pipe 230 of the separation box;

[0060] S5, repeating the above steps S3 to S4, the movable plate moves up and down to make the adsorbed solid particles fall, the solid particles are separated for the second time, and the waste gas of the chemical equipment is pressurized and transported to the separation box exhaust main pipe 910;

[0061] S6: Keep the first stop valve 921 and the second stop valve 931 in the open state, and the third stop valve 941 and the fourth stop valve 951 in the closed state. The exhaust gas from step S5 enters the adsorption assembly 800 in the forward direction and is transported to the designated location through the main exhaust pipe 960 after purification.

[0062] S7, after a preset time, close the first stop valve 921 and the second stop valve 931, and open the third stop valve 941 and the fourth stop valve 951. The exhaust gas in the above step S5 enters the adsorption component 800 in reverse, and is transported to the designated location through the main exhaust pipe 960 after purification.

[0063] It should be noted that venting pipes are usually provided on the C chamber, D chamber and adsorption assembly 800 of the separation box body 210. When the activated carbon in the adsorption assembly 800 needs to be replaced, all the stop valves of the adsorption reversing assembly 900 are closed and the activated carbon can be replaced after venting. When the gas in the C chamber of the separation box body 210 cannot be discharged from the third one-way valve 241, the main inlet stop valve 101 is closed, and the first airbag assembly 300 is restored by the movement of the cylinder assembly 700. The exhaust gas in the C chamber of the separation box body 210 is vented through the venting pipe, and then the stop valve of the impurity storage assembly 270 below the C chamber of the separation box body 210 is opened to complete the discharge of solid impurities in the C chamber of the separation box body 210. Similarly, the discharge of solid impurities in the D chamber of the separation box body 210 can also be completed by a similar method.

[0064] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A chemical equipment waste gas adsorption separation device, characterized in that: The invention comprises a feed pipe assembly (100), a separation box assembly (200), a first air bag assembly (300), a second air bag assembly (400), a first compression assembly (500), a second compression assembly (600), a cylinder assembly (700), an adsorption assembly (800) and an adsorption reversing assembly (900); the feed pipe assembly (100) is fixedly connected to and communicates with the separation box assembly (200); the first air bag assembly (300) and the second air bag assembly (400) are both located in the separation box assembly (200 ); the first compression assembly (500) and the second compression assembly (600) are both located inside the separation box assembly (200); the first airbag connecting air pipe (750) of the cylinder assembly (700) is connected to the first airbag assembly (300), and the second airbag connecting air pipe (760) of the cylinder assembly (700) is connected to the second airbag assembly (400); the adsorption assembly (800) and the separation box assembly (200) are connected via the adsorption reversing assembly (900); The adsorption reversing assembly (900) comprises a separation box exhaust main pipe (910), a first pipe assembly (920), a second pipe assembly (930), a third pipe assembly (940), a fourth pipe assembly (950) and a main discharge pipe (960); the separation box exhaust main pipe (910) is respectively connected to the separation box first discharge pipe (240) and the separation box second discharge pipe (250) of the separation box assembly (200); one end of the first pipe assembly (920) is connected to the separation box exhaust main pipe (910); One end of the second pipe assembly (930) is connected to the adsorption box body of the adsorption assembly (800), and the other end is connected to the main exhaust pipe (960). One end of the third pipe assembly (940) is connected to the first pipe assembly (920), and the other end is connected to the second pipe assembly (930). One end of the fourth pipe assembly (950) is connected to the first pipe assembly (920), and the other end is connected to the second pipe assembly (930). The first pipe assembly (920) is provided with a first stop valve (921), the second pipe assembly (930) is provided with a second stop valve (931), the third pipe assembly (940) is provided with a third stop valve (941), and the fourth pipe assembly (950) is provided with a fourth stop valve (951).

2. The chemical equipment waste gas adsorption separation device according to claim 1, characterized in that: The feed pipe assembly (100) comprises a main feed pipe (110), a first branch pipe (120) and a second branch pipe (130), wherein the first branch pipe (120) and the second branch pipe (130) are both connected to the main feed pipe (110), and a main inlet stop valve (101) is provided at the front end of the main feed pipe (110).

3. The chemical equipment waste gas adsorption separation device according to claim 2, characterized in that: The separation box assembly (200) comprises a separation box body (210), a first separation box feed pipe (220), a second separation box feed pipe (230), a first separation box discharge pipe (240), a second separation box discharge pipe (250), a separation box middle partition (260) and a storage assembly (270). The first separation box feed pipe (220) and the second separation box feed pipe (230) are both connected to the separation box body (210), and the first separation box feed pipe (220) is connected to the first distribution pipe (120). The second feed pipe (230) of the separation box is connected to the second distribution pipe (130), the first discharge pipe (240) and the second discharge pipe (250) of the separation box are both connected to the separation box body (210), the partition (260) in the separation box is located inside the separation box body (210) and is fixedly connected thereto, the partition (260) in the separation box divides the separation box body (210) into two chambers C and D, and the storage component (270) is located at the bottom of the separation box body (210) and is connected thereto.

4. The chemical equipment waste gas adsorption separation device according to claim 3, characterized in that: The first feed pipe (220) of the separation box is provided with a first one-way valve (221), the first discharge pipe (240) of the separation box is provided with a third one-way valve (241), the second feed pipe (230) of the separation box is provided with a second one-way valve (231), and the second discharge pipe (250) of the separation box is provided with a fourth one-way valve (251).

5. The chemical equipment waste gas adsorption separation device according to claim 4, characterized in that: The first compression assembly (500) is located at the top of the inner wall of the C chamber of the separation box body (210), and the first compression assembly (500) includes a fixed box body, a first spring (510) and a first movable plate (520). The fixed box body is fixedly connected to the separation box body (210), and one end of the first spring (510) is connected to the separation box body (210), and the other end is connected to the first movable plate (520).

6. The chemical equipment waste gas adsorption separation device according to claim 5, characterized in that: The second compression assembly (600) is located at the top of the inner wall of the D chamber of the separation box body (210), and the second compression assembly (600) includes the fixed box body, a second spring (610) and a second movable plate (620), and one end of the second spring (610) is connected to the separation box body (210), and the other end is connected to the second movable plate (620).

7. The chemical equipment waste gas adsorption separation device according to claim 6, characterized in that: The cylinder assembly (700) further comprises a cylinder body (710), an electric cylinder assembly (720), a piston rod (730) and a piston (740), wherein the electric cylinder assembly (720) is located on one side of the cylinder body (710) and is fixedly connected thereto, the piston rod (730) and the piston (740) are both located inside the cylinder body (710), and the piston (740) divides the cylinder body (710) into two chambers, A and B, wherein the chamber A of the cylinder body (710) is connected to the first airbag connecting air pipe (750), and the chamber B of the cylinder body (710) is connected to the second airbag connecting air pipe (760).

8. The chemical equipment waste gas adsorption separation device according to claim 7, characterized in that: The adsorption assembly (800) comprises an adsorption box body, a sealing door, and an activated carbon bed layer, wherein the activated carbon bed layer is located inside the adsorption box body, and the sealing door is rotatably connected to the adsorption box body.

9. The method for using the chemical equipment waste gas adsorption separation device according to claim 8, characterized in that: The method of use includes the following steps: S1, waste gas from the chemical equipment enters chamber C and chamber D of the separation box body (210) through the feed pipe assembly (100), and due to changes in flow rate and direction, large solid particles fall into the storage assembly (270), and the cylinder assembly (700) is activated, so that the piston rod (730) drives the piston (740) to move from chamber B of the cylinder body (710) to chamber A; S2, at this time, the volume of chamber A of the cylinder body (710) decreases, and the first airbag assembly (300) is inflated through the first airbag connecting air pipe (750), the volume of the first airbag assembly (300) increases, the exhaust gas in chamber C of the separation box body (210) is compressed, the pressure increases, the first spring (510) is compressed, and the first movable plate (520) moves upward. When the pressure of the gas in chamber C of the separation box body (210) reaches the set value of the third one-way valve (241), the high-pressure gas in chamber C of the separation box body (210) enters the separation box exhaust main pipe (910); S3, when the piston rod (730) drives the piston (740) to perform a reversing motion, the volume of chamber B of the cylinder (710) decreases. The second airbag assembly (400) is inflated through the second airbag connecting air pipe (760), the volume of the second airbag assembly (400) increases, the exhaust gas in the D chamber of the separation box body (210) is compressed, the pressure increases, the second spring (610) is compressed, and the second movable plate (620) moves upward. When the pressure of the gas in the D chamber of the separation box body (210) reaches the set value of the fourth one-way valve (251), the high-pressure gas in the D chamber of the separation box body (210) enters the separation box exhaust main pipe (910), and at the same time, the volume of the A chamber of the cylinder body (710) increases, the air pressure decreases, the first airbag assembly (300) recovers, the gas pressure in the C chamber of the separation box body (210) decreases, the first spring (510) recovers, and the first movable plate (520) moves downward. The waste gas from the chemical equipment enters the C chamber of the separation box body (210) through the first distribution pipe (120) and the first feed pipe (220) of the separation box; S4, when the piston rod (730) drives the piston (740) to reverse again, the first airbag assembly (300) is inflated, the first movable plate (520) moves upward, and the gas in the chamber C of the separation box body (210) is pressurized and enters the separation box exhaust main pipe (910). At the same time, the second airbag assembly (400) is restored, the second movable plate (620) moves downward, and the waste gas of the chemical equipment enters the chamber D of the separation box body (210) through the second distribution pipe (130) and the second feed pipe (230) of the separation box; S5, repeating the above steps S3 to S4, the adsorbed solid particles fall down by the reciprocating up and down motion of the movable plate, the solid particles are secondary separated, and the waste gas of the chemical equipment is pressurized and transported to the exhaust main pipe (910) of the separation box; S6, keeping the first stop valve (921) and the second stop valve (931) in an open state, and the third stop valve (941) and the fourth stop valve (951) in a closed state, the exhaust gas in step S5 enters the adsorption assembly (800) in a forward direction, and is transported to a designated location through the main exhaust pipe (960) after purification; S7, after a preset time, the first stop valve (921) and the second stop valve (931) are closed, and the third stop valve (941) and the fourth stop valve (951) are opened. The exhaust gas from the above step S5 enters the adsorption assembly (800) in the reverse direction, and is transported to the designated location through the main exhaust pipe (960) after purification.

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