A coking industry VOCs waste gas absorption treatment system and method

Abstract

The present invention belongs to the technical field of VOCs waste gas treatment in the coking industry, and specifically relates to a VOCs waste gas absorption treatment system and method in the coking industry, comprising: a plurality of chambers stacked in a vertical direction, an isolation tube arranged in a vertical direction is arranged in the chamber, the isolation tube divides the chamber into an inner tube space and an outer tube space, an absorption pad and a spray device are arranged in the outer tube space; a through-hole is arranged between two adjacent layers of the chambers, a first airflow switching mechanism is arranged on the upper side of the through-hole, and a second airflow switching mechanism is arranged on the lower side of the through-hole; an air inlet chamber is arranged at the bottom layer of each of the chambers, and an exhaust chamber is arranged at the top layer of each of the chambers. The present invention also arranges an isolation tube for gas bypass in each chamber, and when the content of a certain component in the waste gas is low, part of the chambers of the spray tower for the component can be selectively closed, thereby reducing the consumption of absorption liquid and system energy consumption, and avoiding unnecessary waste of resources.

Description

Technical Field

[0001] The present invention belongs to the technical field of VOCs waste gas treatment in the coking industry, and specifically relates to a VOCs waste gas absorption treatment system and method in the coking industry. Background Art

[0002] As disclosed in the Chinese patent "A VOCs treatment system for the production area of ​​the coking industry" (Announcement No. CN 216630292 U), the components of the VOCs waste gas produced by different workstations in the coking industry are different. For the convenience of treatment, the VOCs waste gas of each workstation is generally mixed first, and then the oil washing, alkali washing, acid washing and other processes are carried out in sequence, among which the oil washing, alkali washing, acid washing and other processes are generally implemented by a spray tower. In the prior art, the treatment performance of VOCs waste gas absorption equipment is generally planned at the beginning of construction. However, in the coking industry, there are differences in the gas production at different periods and different workstations, which leads to changes in the components of the mixed waste gas. Therefore, the absorption performance requirements for different absorption equipment such as oil washing, alkali washing, acid washing, etc. are actually different at different periods. In order to meet the needs of all working conditions, the prior art generally reserves some redundant performance, which leads to the actual operating efficiency of some equipment being far greater than the required efficiency, thereby leading to unnecessary waste of resources. Summary of the invention

[0003] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a VOCs waste gas absorption and treatment system and method for the coking industry that can adapt to different waste gas treatment performance requirements and avoid waste of resources.

[0004] In order to achieve the above-mentioned purpose and other related purposes, the present invention provides a coking industry VOCs waste gas absorption and treatment system, comprising:

[0005] A plurality of chambers stacked in a vertical direction, wherein an isolation tube arranged in a vertical direction is arranged in the chamber, and the isolation tube divides the chamber into an inner tube space and an outer tube space, and an absorption pad layer and a spray device are arranged in the outer tube space;

[0006] A through-hole is provided between two adjacent layers of the chambers, a first airflow switching mechanism is provided on the upper side of the through-hole, and the first airflow switching mechanism is configured to control the through-hole to communicate with the inner space of the tube or the outer space of the chamber of the upper layer, and a second airflow switching mechanism is provided on the lower side of the through-hole, and the second airflow switching mechanism is configured to control the through-hole to communicate with the inner space of the tube or the outer space of the chamber of the lower layer;

[0007] The bottom layer of each chamber is provided with an air inlet chamber, and the air inlet chamber is provided with a main air inlet port. The top layer of each chamber is provided with an exhaust chamber, and the exhaust chamber is provided with a main air exhaust port.

[0008] In an optional embodiment of the present invention, a limiting sleeve is provided in the chamber, the limiting sleeve is fixedly connected to the side wall of the chamber through a spoke plate, the isolation tube is inserted into the limiting sleeve, and the isolation tube is movably arranged along the vertical direction;

[0009] The first airflow switching mechanism comprises a sleeve fixedly connected to the lower end of the isolation tube, and an extension tube fixedly connected to the upper end of the through-hole, the diameter of the sleeve is larger than the diameter of the isolation tube, the upper end of the extension tube is sealed, a first hollow portion is provided on the side wall of the extension tube, a second hollow portion is provided on the tube wall of the isolation tube, and the extension tube is inserted into the sleeve;

[0010] The isolation tube has a first height and a second height within its vertical movable range; when the isolation tube is at the first height, the first hollow portion is located in the sleeve, a gap is provided between the upper end of the extension tube and the upper end of the sleeve, and the second hollow portion is blocked by the limiting sleeve; when the isolation tube is at the second height, the second hollow portion is exposed below the limiting sleeve, the extension tube is inserted into the isolation tube, and the first hollow portion is aligned with and connected to the second hollow portion.

[0011] In an optional embodiment of the present invention, the second airflow switching mechanism includes a cannula fixedly connected to the upper end of the isolation tube, the outer diameter of the cannula is consistent with the inner diameter of the extension tube, and the cannula is assembled so that when the isolation tube is located at the first height, the cannula is inserted into the lower end of the extension tube, and when the isolation tube is located at the second height, the cannula is separated from the lower end of the extension tube.

[0012] In an optional embodiment of the present invention, a driving mechanism for driving the isolation tube to move up and down is also included.

[0013] In an optional embodiment of the present invention, the driving mechanism includes an ear plate arranged on the outer wall of the isolation tube, and a horizontal waist-shaped hole is provided on the ear plate. The driving mechanism also includes a crankshaft arranged in the chamber, and the crankshaft includes a main shaft and an eccentric shaft. Both ends of the main shaft are rotatably connected to the side walls of the chamber, and the eccentric shaft is inserted into the horizontal waist-shaped hole. The driving mechanism also includes a driving element arranged on the outer wall of the chamber for driving the main shaft to rotate.

[0014] In an optional embodiment of the present invention, each of the chambers is connected by a plurality of detachable storage bodies, the lower end of the storage body is open, the upper end of the storage body is provided with a top wall, the top wall constitutes a common wall of two adjacent chambers, and the flow hole is provided on the top wall.

[0015] In an optional embodiment of the present invention, the top wall is a conical structure that is narrow at the top and wide at the bottom, a liquid collecting groove is provided at the edge of the top wall, and a liquid discharge port is provided on the side wall of the liquid collecting groove.

[0016] In an optional embodiment of the present invention, a grid is provided in the bin body, the absorbent pad is laid on the grid, the spray device is located above the absorbent pad, and the driving mechanism is installed between the spray device and the top wall.

[0017] In an optional embodiment of the present invention, an inspection window is provided on the side wall of the warehouse body.

[0018] In order to achieve the above-mentioned purpose and other related purposes, the present invention also provides a method for absorbing and treating VOCs waste gas in the coking industry, and adopts the VOCs waste gas absorption and treatment system in the coking industry to absorb VOCs waste gas in the coking industry.

[0019] The technical effect of the present invention is that an isolation tube for gas bypass is also arranged in each chamber of the present invention. When the content of a certain component in the exhaust gas is low, some chambers of the spray tower for the component can be selectively closed, thereby reducing the consumption of absorption liquid and system energy consumption, and avoiding unnecessary waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of a VOCs waste gas absorption and treatment system for the coking industry provided by an embodiment of the present invention;

[0021] Figure 2 It is a cross-sectional view of a VOCs waste gas absorption and treatment system for the coking industry provided by an embodiment of the present invention;

[0022] Figure 3 It is a partial cross-sectional view of one of the chambers of the VOCs waste gas absorption and treatment system for the coking industry provided by an embodiment of the present invention;

[0023] Figure 4 It is a cross-sectional view of one chamber of the coking industry VOCs waste gas absorption and treatment system provided by an embodiment of the present invention in another state;

[0024] Figure 5 is a three-dimensional diagram of a bin body provided by an embodiment of the present invention;

[0025] Figure 6 is a stereoscopic diagram of a warehouse body from another perspective provided by an embodiment of the present invention;

[0026] Explanation of the reference numerals: 100, chamber; 101, flow hole; 10, warehouse body; 11, isolation tube; 111, sleeve; 112, second hollow portion; 113, insert tube; 12, absorption pad; 13, spray device; 14, limiting sleeve; 15, grille; 16, top wall; 161, extension tube; 162, first hollow portion; 163, liquid collecting tank; 164, drain port; 20, air inlet chamber; 21, main air inlet; 30, exhaust chamber; 31, main air outlet; 32, demisting layer; 40, inspection window; 50, driving element; 51, main shaft; 52, eccentric shaft; 53, ear plate; 54, horizontal waist-shaped hole. DETAILED DESCRIPTION

[0027] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0028] It should be noted that the illustrations provided in the following embodiments are only used to illustrate the basic concept of the present invention in a schematic manner, and thus the illustrations only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0029] In the coking industry, spray tower absorption technology is usually used to treat VOCs (volatile organic compounds) waste gas. The spray tower is a common gas purification equipment, which mainly includes a tower structure, an air inlet, a spray system and an air outlet; the tower structure is usually composed of a cylindrical container with fillers or tower plates inside to increase the contact area. The waste gas enters the spray tower through the air inlet. The spray system is located at the top of the tower. The spray system includes a nozzle and a circulating pump. The nozzle sprays the absorption liquid (usually water or solution) evenly onto the filler or tower plate, and the treated waste gas is discharged from the tower through the air outlet. After the VOCs waste gas enters the spray tower, it comes into contact with the sprayed absorption liquid. The organic compounds in the VOCs will partially dissolve into the absorption liquid, thus transferring from the gas phase to the liquid phase. This process utilizes the contact and dissolution between the gas and the liquid, so that the organic compounds can be effectively captured and removed. The packing or tray in the tower increases the contact area and promotes the mass transfer between the waste gas and the absorption liquid. The nozzle sprays the absorption liquid evenly onto the packing or tray to ensure sufficient contact time and contact area, thereby improving the removal efficiency. After being treated by the spray tower, the VOCs concentration in the waste gas is significantly reduced, meeting the requirements of environmental emission standards. The organic compounds enriched in the absorption liquid can be further processed or recycled, thereby realizing the reuse of resources and the reduction of waste. The spray tower absorption technology is widely used in industrial applications due to its simple structure, stable operation and suitability for waste gas treatment of various scales.

[0030] However, in the coking industry, there are differences in gas production at different times and in different workstations, which causes the components of the mixed waste gas to change. Therefore, the absorption performance requirements for different absorption equipment such as oil washing, alkali washing, acid washing, etc. are actually different at different times. In order to meet the needs of all working conditions, the existing technology generally reserves some redundant performance, which causes the actual operating efficiency of some equipment to be far greater than the required efficiency, thereby causing unnecessary waste of resources. To this end, the present invention also provides an isolation tube for gas bypass in each chamber. When the content of a certain component in the waste gas is low, some chambers of the spray tower for the component can be selectively closed, thereby reducing the consumption of absorption liquid and system energy consumption, and avoiding unnecessary waste of resources.

[0031] See also Figure 1-Figure 6 As shown, the technical solution of the present invention is described in detail below in conjunction with specific embodiments:

[0032] See also Figure 1 , Figure 2As shown, the VOCs waste gas absorption treatment system for the coking industry provided by the embodiment of the present invention comprises a plurality of chambers 100 stacked in a vertical direction, wherein an isolation tube 11 arranged in a vertical direction is arranged in the chamber 100, wherein the isolation tube 11 separates the chamber 100 into an inner tube space and an outer tube space, wherein an absorption pad layer 12 and a spray device 13 are arranged in the outer tube space; a through hole 101 is arranged between two adjacent layers of the chambers 100, wherein a first airflow switching mechanism is arranged on the upper side of the through hole 101, wherein the first airflow switching mechanism is configured to be able to control the through hole 101. 1 is communicated with the inner space or outer space of the chamber 100 in the upper layer, and a second airflow switching mechanism is provided at the lower side of the through-hole 101, and the second airflow switching mechanism is configured to control the through-hole 101 to communicate with the inner space or outer space of the chamber 100 in the lower layer; the lowest layer of each chamber 100 is provided with an air inlet chamber 20, and the air inlet chamber 20 is provided with a main air inlet port 21, and the highest layer of each chamber 100 is provided with an exhaust chamber 30, and the exhaust chamber 30 is provided with a main exhaust port 31. In a further embodiment, a demisting layer 32 can be provided in the exhaust chamber 30.

[0033] It should be understood that when the content of a certain component in the exhaust gas is relatively low, the absorption performance requirements of the spray tower used to absorb the corresponding component are also relatively low. At this time, some chambers 100 of the spray tower can be closed to reduce the consumption of absorption liquid and system energy consumption. Specifically, when it is necessary to close one of the chambers 100, it is only necessary to connect the flow hole 101 at the lower end and the flow hole 101 at the upper end of the chamber 100 to the isolation tube 11 in the chamber 100 at the same time.

[0034] See also Figure 3 , Figure 4As shown, in an optional embodiment of the present invention, a limiting sleeve 14 is provided in the chamber 100, and the limiting sleeve 14 is fixedly connected to the side wall of the chamber 100 through a spoke plate, and the isolation tube 11 is inserted into the limiting sleeve 14, and the isolation tube 11 is movably arranged along the vertical direction; the first airflow switching mechanism includes a sleeve 111 fixedly connected to the lower end of the isolation tube 11, and an extension tube 161 fixedly connected to the upper end of the through hole 101, the tube diameter of the sleeve 111 is larger than the tube diameter of the isolation tube 11, the upper end of the extension tube 161 is sealed, and a first hollow portion 162 is provided on the side wall of the extension tube 161, and a second hollow portion 162 is provided on the tube wall of the isolation tube 11 Part 112, the extension tube 161 is inserted into the sleeve 111; the isolation tube 11 has a first height and a second height within its vertical movable stroke; when the isolation tube 11 is at the first height, the first hollow part 162 is located in the sleeve 111, a gap is provided between the upper end of the extension tube 161 and the upper end of the sleeve 111, and the second hollow part 112 is blocked by the limiting sleeve 14; when the isolation tube 11 is at the second height, the second hollow part 112 is exposed below the limiting sleeve 14, the extension tube 161 is inserted into the isolation tube 11, and the first hollow part 162 is aligned with and connected to the second hollow part 112. The second airflow switching mechanism includes a cannula 113 fixedly connected to the upper end of the isolation tube 11, the outer diameter of the cannula 113 is consistent with the inner diameter of the extension tube 161, and the cannula 113 is assembled so that when the isolation tube 11 is located at the first height, the cannula 113 is inserted into the lower end of the extension tube 161, and when the isolation tube 11 is located at the second height, the cannula 113 is separated from the lower end of the extension tube 161.

[0035] The following combination Figure 3 , Figure 4 The specific working principles of the first airflow switching mechanism and the second airflow switching mechanism are described in detail:

[0036] When it is necessary to make the airflow avoid a certain chamber 100, Figure 3 As shown, at this time, the isolation tube 11 is located at the first height, and the upper and lower ends of the isolation tube 11 are respectively connected to the flow holes 101 at the upper and lower ends of the chamber 100, and the isolation tube 11 is isolated from the tube space outside the chamber 100. At this time, the airflow does not pass through the chamber 100. The airflow path is as shown in FIG. Figure 3 When the chamber 100 needs to be opened, the isolation tube 11 only needs to be driven upward to move to Figure 4At the second height shown, the through hole 101 at the lower end of the chamber 100 is connected to the space outside the chamber 100. At the same time, the lower end of the isolation tube 11 is closed by the extension tube 161, and the airflow does not enter the isolation tube 11, thereby ensuring that the airflow can fully pass through the current chamber 100. At this time, the airflow path is as follows: Figure 4 Indicated by the dashed arrow.

[0037] See also Figure 1 , Figure 3-Figure 6 As shown, in an optional embodiment of the present invention, it also includes a driving mechanism for driving the isolation tube 11 to move up and down. Specifically, the driving mechanism includes an ear plate 53 provided on the outer wall of the isolation tube 11, and a horizontal waist-shaped hole 54 is provided on the ear plate 53. The driving mechanism also includes a crankshaft provided in the chamber 100, and the crankshaft includes a main shaft 51 and an eccentric shaft 52. Both ends of the main shaft 51 are rotatably connected to the side walls of the chamber 100, and the eccentric shaft 52 is inserted into the horizontal waist-shaped hole 54. The driving mechanism also includes a driving element 50 provided on the outer wall of the chamber 100 for driving the main shaft 51 to rotate. In a specific embodiment, the driving element 50 can be a motor, and the motor can be connected to the main shaft 51 through a worm gear mechanism. Please refer to Figure 3 , 4 As shown, the working principle of the driving mechanism is explained below: when it is necessary to drive the isolation tube 11 to descend, the motor drives the main shaft 51 to rotate through the worm gear mechanism, and the rotation of the main shaft 51 drives the eccentric shaft 52 to swing, and the eccentric shaft 52 drives the isolation tube 11 to move up and down through the horizontal waist-shaped hole 54, thereby realizing the position switching of the isolation tube 11 between the first height and the second height.

[0038] See also Figure 1 , Figure 5 , Figure 6 As shown, in an optional embodiment of the present invention, each chamber 100 is connected by a plurality of detachable bins 10, the lower end of the bin 10 is open, and the upper end of the bin 10 is provided with a top wall 16, the top wall 16 constitutes a common wall of two adjacent chambers 100, and the through-flow hole 101 is provided on the top wall 16. The spray tower of the present invention is designed as a modular structure, and users can freely choose the number of stacked chambers 100 according to their needs, so that construction and use are more flexible.

[0039] See also Figure 3 , Figure 6As shown, in an optional embodiment of the present invention, the top wall 16 is a conical structure that is narrow at the top and wide at the bottom, and a liquid collecting groove 163 is provided at the edge of the top wall 16, and a liquid discharge port 164 is provided on the side wall of the liquid collecting groove 163. The present invention provides a liquid collecting groove 163 at the bottom of each layer of chambers 100, which is to realize the independent operation of each layer of chambers 100 on the one hand, and to enable different chambers 100 to use different absorption liquids on the other hand. In theory, one spray tower can simultaneously realize multiple absorption processes such as oil washing, alkali washing, and acid washing.

[0040] See also Figure 3 , Figure 4 As shown, in an optional embodiment of the present invention, a grid 15 is provided in the bin body 10, the absorption pad 12 is laid on the grid 15, the spray device 13 is located above the absorption pad 12, and the driving mechanism is installed between the spray device 13 and the top wall 16 to prevent the spray device 13 from spraying the absorption liquid on the driving mechanism, thereby reducing the corrosion of the driving mechanism. It should be understood that the surface of the driving mechanism can also be coated with a corrosion-resistant material.

[0041] In an optional embodiment of the present invention, a maintenance window 40 is provided on the side wall of the warehouse body 10 to facilitate maintenance of the equipment.

[0042] The present invention also provides a method for absorbing VOCs waste gas from the coking industry by using the VOCs waste gas absorption and treatment system from the coking industry.

[0043] In summary, the present invention sets an isolation tube 11 for gas bypass in each chamber 100. When the content of a certain component in the exhaust gas is low, some chambers 100 of the spray tower for the component can be selectively closed, thereby reducing the consumption of absorption liquid and system energy consumption, and avoiding unnecessary waste of resources; the spray tower of the present invention is designed as a modular structure, and users can freely choose the number of stacked chambers 100 according to needs, and the construction and use are more flexible; the present invention sets a liquid collecting tank 163 at the bottom of each layer of chamber 100. On the one hand, this is to realize the independent operation function of the chamber 100, and on the other hand, different chambers 100 can use different absorption liquids. In theory, one spray tower can simultaneously realize multiple absorption processes such as oil washing, alkali washing, and acid washing.

[0044] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

[0045] In the description herein, many specific details, such as examples of components and / or methods, are provided to provide a complete understanding of embodiments of the present invention. However, those skilled in the art will recognize that embodiments of the present invention may be practiced without one or more of the specific details or with other devices, systems, components, methods, components, materials, parts, etc. In other cases, well-known structures, materials, or operations are not specifically shown or described in detail to avoid obscuring aspects of embodiments of the present invention.

Claims

1. A VOCs waste gas absorption and treatment system for the coking industry, characterized in that: include: A plurality of chambers (100) stacked in a vertical direction, wherein an isolation tube (11) arranged in the vertical direction is provided in the chamber (100), wherein the isolation tube (11) separates the chamber (100) into an inner tube space and an outer tube space, wherein an absorption pad layer (12) and a spray device (13) are provided in the outer tube space; A through-hole (101) is provided between two adjacent layers of the chambers (100); a first airflow switching mechanism is provided on the upper side of the through-hole (101); the first airflow switching mechanism is configured to control the through-hole (101) to communicate with the inner space of the tube or the outer space of the chamber (100) of the upper layer; a second airflow switching mechanism is provided on the lower side of the through-hole (101); the second airflow switching mechanism is configured to control the through-hole (101) to communicate with the inner space of the tube or the outer space of the chamber (100) of the lower layer; The bottom layer of each chamber (100) is provided with an air inlet chamber (20), the air inlet chamber (20) is provided with a main air inlet port (21), and the top layer of each chamber (100) is provided with an air exhaust chamber (30), the air exhaust chamber (30) is provided with a main air exhaust port (31); A limiting sleeve (14) is provided in the chamber (100), the limiting sleeve (14) being fixedly connected to the side wall of the chamber (100) via a spoke plate, the isolation tube (11) being inserted into the limiting sleeve (14), and the isolation tube (11) being movably arranged in a vertical direction; The first airflow switching mechanism comprises a sleeve (111) fixedly connected to the lower end of the isolation tube (11), and an extension tube (161) fixedly connected to the upper end of the through-flow hole (101); the diameter of the sleeve (111) is larger than the diameter of the isolation tube (11); the upper end of the extension tube (161) is sealed; a first hollow portion (162) is provided on the side wall of the extension tube (161); a second hollow portion (112) is provided on the tube wall of the isolation tube (11); and the extension tube (161) is inserted into the sleeve (111); The isolation tube (11) has a first height and a second height within its vertical movable stroke; when the isolation tube (11) is at the first height, the first hollow portion (162) is located in the sleeve (111), a gap is provided between the upper end of the extension tube (161) and the upper end of the sleeve (111), and the second hollow portion (112) is blocked by the limiting sleeve (14); when the isolation tube (11) is at the second height, the second hollow portion (112) is exposed below the limiting sleeve (14), the extension tube (161) is inserted into the isolation tube (11), and the first hollow portion (162) is aligned with and connected to the second hollow portion (112); The second airflow switching mechanism comprises a plug (113) fixedly connected to the upper end of the isolation tube (11), the outer diameter of the plug (113) being consistent with the inner diameter of the extension tube (161), and the plug (113) being assembled so that when the isolation tube (11) is located at the first height, the plug (113) is plugged into the lower end of the extension tube (161), and when the isolation tube (11) is located at the second height, the plug (113) is separated from the lower end of the extension tube (161).

2. The coking industry VOCs waste gas absorption and treatment system according to claim 1 is characterized in that: It also includes a driving mechanism for driving the isolation tube (11) to move up and down.

3. The coking industry VOCs waste gas absorption and treatment system according to claim 2 is characterized in that: The driving mechanism comprises an ear plate (53) arranged on the outer wall of the isolation tube (11), and a horizontal waist-shaped hole (54) is provided on the ear plate (53). The driving mechanism also comprises a crankshaft arranged in the chamber (100), and the crankshaft comprises a main shaft (51) and an eccentric shaft (52). Both ends of the main shaft (51) are rotatably connected to the side wall of the chamber (100), and the eccentric shaft (52) is inserted into the horizontal waist-shaped hole (54). The driving mechanism also comprises a driving element (50) arranged on the outer wall of the chamber (100) for driving the main shaft (51) to rotate.

4. The coking industry VOCs waste gas absorption and treatment system according to claim 3 is characterized in that: Each chamber (100) is formed by connecting a plurality of detachable bin bodies (10); the lower end of the bin body (10) is open, and the upper end of the bin body (10) is provided with a top wall (16); the top wall (16) constitutes a common wall of two adjacent chambers (100); and the through-flow hole (101) is provided on the top wall (16).

5. The coking industry VOCs waste gas absorption and treatment system according to claim 4 is characterized in that: The top wall (16) is a conical structure that is narrow at the top and wide at the bottom. A liquid collecting groove (163) is provided at the edge of the top wall (16), and a liquid drain port (164) is provided on the side wall of the liquid collecting groove (163).

6. The coking industry VOCs waste gas absorption and treatment system according to claim 4 is characterized in that: A grille (15) is provided in the bin body (10), the absorbent pad layer (12) is laid on the grille (15), the spray device (13) is located above the absorbent pad layer (12), and the drive mechanism is installed between the spray device (13) and the top wall (16).

7. The coking industry VOCs waste gas absorption and treatment system according to claim 4 is characterized in that: An inspection window (40) is provided on the side wall of the warehouse body (10).

8. A method for absorbing and treating VOCs waste gas in the coking industry, characterized in that: The VOCs waste gas absorption and treatment system for the coking industry as described in any one of claims 1 to 7 is used to absorb VOCs waste gas from the coking industry.

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