Chemical equipment waste gas adsorption separation device and method

Abstract

The invention 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 box 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 and communicated with the separation box assembly; the air bag assembly is located in the separation box assembly. The compression assembly is located in the separation box assembly. A first air bag connecting air pipe of the air cylinder assembly communicates with the first air bag assembly, and a second air bag connecting air pipe of the air cylinder assembly communicates with the second air bag assembly. The adsorption assembly and the separation box assembly are connected through the adsorption reversing assembly. The device has the remarkable advantages of improving the waste gas treatment efficiency, improving the adsorption capacity, reducing the energy consumption and the occupied area and the like, and solves the problem that the front end of an activated carbon bed layer is saturated in adsorption and the rear end of the activated carbon is not fully utilized during one-way activated carbon adsorption.

Description

Technical Field

[0001] The invention belongs to the technical field of waste gas adsorption and separation, and specifically relates to a waste gas adsorption and separation device and method for chemical equipment. Background Art

[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 chemicals. Long-term exposure will cause harm to human health. Some flammable and explosive chemical waste gases also have safety hazards. In addition, some waste gases with strong odors will also affect the quality of life of surrounding residents. In order to control and reduce the harm of chemical waste gases to the environment and human body, chemical equipment waste gases must be treated. At present, common treatment methods include adsorption, absorption, catalytic oxidation, low-temperature plasma, membrane separation, incineration and biological methods.

[0003] Compared with other waste gas treatment technologies, the initial investment and operating costs of activated carbon adsorption devices are lower, its structure is simple, no complex process control is required, and maintenance is convenient. In addition, activated carbon has a large specific surface area and a porous structure, which can effectively adsorb various pollutants in organic waste gas. It is suitable for treating various types of chemical equipment waste gas. At the same time, saturated activated carbon can be reused after regeneration treatment to reduce waste generation. Therefore, the activated carbon adsorption method is currently widely used, but the capacity of activated carbon adsorption devices 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 saturation of the front end of the activated carbon bed and the activated carbon at the rear end is not fully utilized, affecting the adsorption effect.

[0004] The authorization announcement number CN221637605U discloses an activated carbon adsorption device for waste gas treatment, including a storage box, a cavity is opened on 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 is fixedly connected to the output end of the motor, a second screw is rotatably connected to the front of the upper side of the inner wall of the cavity, sprockets are fixedly connected to the upper side of the first screw and the second screw, chains are provided on the surfaces of the two sprockets, and activated carbon plates are fixedly connected to the center of the upper and lower sides of the inner wall of the storage box. The utility model avoids the equipment surface being full of dust when the equipment is used for a long time, thereby improving the filtering effect of the equipment on the waste gas, and at this time, the working efficiency of the equipment is improved. When the activated carbon plate is cleaned, the workload of the employees is reduced, and the use effect of the equipment is increased. However, the utility model does not start from providing the pressure and separation effect at the front end of the waste gas, and still adopts a one-way adsorption method, which affects the overall adsorption efficiency. Summary of the invention

[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, the activated carbon is mostly adsorbed in one direction, 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 communicated 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 comprises 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 stop 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 for the separation box, a second feed pipe for the separation box, a first discharge pipe for the separation box, a second discharge pipe for the separation box, a partition plate in the separation box and a miscellaneous storage assembly, the first feed pipe for the separation box and the second feed pipe for the separation box are both connected to the separation box body, the first feed pipe for the separation box is connected to the first distribution pipe, the second feed pipe for the separation box is connected to the second distribution pipe, the first discharge pipe for the separation box and the second discharge pipe for the separation box are both connected to the separation box body, the partition plate in the separation box is located inside the separation box body and is fixedly connected thereto, the partition plate in the separation box divides the separation box body into two chambers, C and D, and the miscellaneous storage assembly 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 fixedly connected thereto, the piston rod and the piston are both located inside the cylinder body, and 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 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.

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

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

[0016] S1, the waste gas from the chemical equipment enters the C chamber and D chamber of the separation box body through the feed pipe assembly. Due to the changes in flow rate and direction, large solid particles fall into the storage component, and the cylinder assembly is started, so that the piston rod drives the piston to move from the B chamber of the cylinder body to the A chamber;

[0017] S2, at this time, the volume of chamber A of the cylinder body becomes smaller, and the first airbag assembly is inflated through the first airbag connecting air pipe, the volume of the first airbag assembly becomes larger, the exhaust gas in chamber C of the separation box body is compressed, the pressure increases, the first spring is compressed, and the first movable plate is driven to move upward. When the pressure of the gas in chamber C of the separation box body reaches the set value of the third one-way valve, the high-pressure gas in chamber C of the separation box body enters the exhaust main pipeline of the separation box;

[0018] S3, when the piston rod drives the piston to perform reversing movement, the volume of the B chamber of the cylinder body decreases, and the second airbag assembly is inflated through the air pipe connected to the second airbag, the volume of the second airbag assembly increases, the exhaust gas in the D chamber of the separation box body is compressed, the pressure increases, the second spring is compressed, and the second movable plate is driven to move upward. When the pressure of the gas in the D chamber of the separation box body reaches the set value of the fourth one-way valve, the high-pressure gas in the D chamber of the separation box body enters the exhaust main pipeline of the separation box. At the same time, the volume of the A chamber of the cylinder body increases, the air pressure decreases, the first airbag assembly recovers, the gas pressure in the C chamber of the separation box body decreases, the first spring recovers, and the first movable plate is driven to move downward. The exhaust gas of the chemical equipment enters the C chamber of the separation box body from the first feed pipe of the separation box through the first feed pipe of the separation box;

[0019] S4, when the piston rod drives the piston to reverse again, the first airbag assembly is inflated, the first movable plate moves upward, the gas in the C chamber of the separation box body is pressurized and enters the exhaust main pipe of the separation box, and at the same time, the second airbag assembly is restored, the second movable plate moves downward, and the waste gas of the chemical equipment enters the D chamber of the separation box body through the second feed pipe of the separation box through the second feed pipe of the separation box;

[0020] S5, repeating the above steps S3 to S4, the adsorbed solid particles fall down through the up and down reciprocating motion of the moving plate, the solid particles are separated for the second time, and the waste gas of the chemical equipment is pressurized and transported to the exhaust main pipeline of the separation box;

[0021] S6, keeping the first stop valve and the second stop valve in an open state, and the third stop valve and the fourth stop valve in a closed state, the exhaust gas in the above step S5 enters the adsorption component in a positive direction, and is transported to a designated location through a main 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 exhaust gas in the above step S5 enters the adsorption component in reverse, and is transported to the designated location through the main 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 the 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 the 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 problem 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, thereby 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 is a schematic structural diagram of a 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 4A partial enlarged schematic diagram;

[0033] Figure 6 It is a structural schematic diagram of the cylinder assembly of the present invention;

[0034] Figure 7 It is a schematic diagram of the connection of various pipelines including valves of the adsorption reversing assembly of the present invention;

[0035] Figure 8 It is a schematic diagram of the connection between the adsorption reversing component and the adsorption component of the present invention.

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

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] It should be pointed out that the terms "upper", "lower", "left", "right", "top", "bottom", "inside", "outside" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention.

[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 waste gas adsorption and separation device for chemical equipment, comprising 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 discharge. During the air intake 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 separator 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 plate 260 of the separation box is located inside the separation box body 210 and is fixedly connected thereto, the partition plate 260 of 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 inside the separation box assembly 200 and fixedly connected thereto; the direct connection between the airbag assembly and the separation box is an existing mature technology and will not be described in detail here. The number of airbag assemblies in the present invention can be expanded according to the size and position of the separation box body 210, and only corresponding three-way and four-way joints need to be added 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, 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. The A chamber of the cylinder body 710 is connected to the first airbag connecting air pipe 750, and the B chamber 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 located 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 layer, wherein the adsorption box body is fixedly connected to the foundation through a support (not shown in the figure), the activated carbon bed layer 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 pipeline 910, a first pipeline assembly 920, a second pipeline assembly 930, a third pipeline assembly 940, a fourth pipeline assembly 950 and a total discharge pipeline 960, the separation box exhaust main pipeline 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 pipeline assembly 920 is connected to the separation box exhaust main pipeline 910, and the other end is connected to the adsorption box body, and the second pipeline assembly 930 is connected to the adsorption box body at one end and the total discharge pipeline 960 at the other end. 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 the 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, the one-way valves and the pipelines.

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

[0056] S1, the waste gas of the chemical equipment enters the C chamber and the D chamber of the separation box body 210 through the feed pipe assembly 100. Due to the change of flow rate and direction, large solid particles fall into the storage assembly 270, and the cylinder assembly 700 is started, so that the piston rod 730 drives the piston 740 to move from the B chamber of the cylinder body 710 to the A chamber;

[0057] S2, at this time, the volume of the A chamber of the cylinder body 710 becomes smaller, and the first airbag assembly 300 is inflated through the first airbag connecting air pipe 750, the volume of the first airbag assembly 300 becomes larger, the exhaust gas in the C chamber 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 the C chamber of the separation box body 210 reaches the set value of the third one-way valve 241, the high-pressure gas in the C chamber of the separation box body 210 enters the separation box exhaust main pipeline 910;

[0058] S3, when the piston rod 730 drives the piston 740 to perform a reversing movement, the volume of the B chamber of the cylinder body 710 decreases, and 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 fourth one-way valve 251 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, 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 moving plate 520 moves downward, and the waste gas from the chemical equipment enters the C chamber of the separation box body 210 from the first feed pipe 220 of the separation box through the first feed pipe 120;

[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 the C chamber of the separation box body 210 is pressurized and enters the separation box exhaust main pipe 910, and 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 D chamber of the separation box body 210 through the second feed pipe 230 of the separation box from the second feed pipe 130;

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

[0061] S6, keep 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 the above step S5 enters the adsorption assembly 800 in a positive direction, and is transported to a 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 reversely enters the adsorption component 800, and is transported to the designated location through the main exhaust pipe 960 after purification.

[0063] It should be pointed out that usually, a venting pipeline is 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 total inlet stop valve 101 is closed, and the first airbag assembly 300 is restored by the movement of the cylinder assembly 700, and the exhaust gas in the C chamber of the separation box body 210 is vented through the venting pipeline, and then the stop valve of the 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] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chemical equipment waste gas adsorption and separation device, characterized in that: It 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 and communicated with the separation box assembly (200); The first airbag assembly (300) and the second airbag assembly (400) are both located inside 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).

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); 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 component (270), wherein the first separation box feed pipe (220) and the second separation box feed pipe (230) are both connected to the separation box body (210), the first separation box feed pipe (220) is connected to the first distribution pipe (120), and the The second feed pipe (230) of the separation box is connected to 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 both connected to the separation box body (210), the partition plate (260) of the separation box is located inside the separation box body (210) and is fixedly connected thereto, the partition plate (260) of 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 3, 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), 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); 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; 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 chemical equipment waste gas adsorption separation device according to claim 8, characterized in that: The adsorption reversing assembly (900) comprises a separation box exhaust main pipeline (910), a first pipeline assembly (920), a second pipeline assembly (930), a third pipeline assembly (940), a fourth pipeline assembly (950) and a main discharge pipeline (960). The separation box exhaust main pipeline (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 pipeline assembly (920) is connected to the separation box exhaust main pipeline (910), and the other end is connected to the adsorption box body. One end of the second pipeline assembly (930) is connected to the adsorption box body, and the other end is connected to the main discharge pipeline ( 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), 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).

10. The method for using the chemical equipment waste gas adsorption separation device according to claim 9, characterized in that: The method of use includes the following steps: S1, waste gas from the chemical equipment enters the C chamber and the D chamber of the separation box body (210) respectively through the feed pipe assembly (100), and due to the change in flow rate and direction, large solid particles fall into the storage assembly (270), and the cylinder assembly (700) is started, so that the piston rod (730) drives the piston (740) to move from the B chamber of the cylinder body (710) to the A chamber; 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 pipeline (910); S3, when the piston rod (730) drives the piston (740) to perform a reversing movement, the volume of the B chamber of the cylinder body (710) decreases, and 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 pressure of the fourth one-way valve (251), the second one-way valve (251) is opened. ), 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 drives the first moving plate (520) to move downward, and the waste gas of 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; 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 C chamber of the separation box body (210) is pressurized and enters the separation box exhaust main pipe (910), and 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 D chamber of the separation box body (210) through the second feed pipe (230) of the separation box from the second feed pipe (130); S5, repeating the above steps S3 to S4, the adsorbed solid particles fall down through the reciprocating up and down motion of the movable plate, the solid particles are separated for the second time, and the waste gas of the chemical equipment is pressurized and transported to the exhaust main pipeline (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 the above step S5 enters the adsorption component (800) in a positive direction, and is transported to a designated location through the main exhaust pipe (960) after purification; 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), and 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.

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