Tail gas treatment mechanism for petrochemical engineering field

Abstract

The invention discloses a tail gas treatment mechanism for the field of petrochemical engineering, and belongs to the technical field of tail gas treatment mechanisms, the tail gas treatment mechanism comprises a treatment box, an exhaust pipe is connected to the top wall of the treatment box, a spraying mechanism, a gas inlet mechanism and a circulating mechanism are further arranged in the treatment box, and a liquid collecting box is arranged in the treatment box; a plurality of movable rods are movably arranged on the bottom wall of the treatment box, one end of each movable rod is fixedly connected with the bottom wall of the liquid collecting box, each movable rod is sleeved with a first spring, two check blocks are movably arranged on the inner surface of the top wall of the treatment box, and a linkage mechanism is arranged between the two check blocks and the liquid collecting box; when the liquid collecting box descends, the two check blocks are driven to get close to each other to block the exhaust pipe, a sewage discharging hopper is arranged at the bottom of the liquid collecting box, and an electric sewage discharging valve is installed on the sewage discharging hopper. When the tail gas treatment device is used for treating tail gas, generated sludge is automatically discharged, sludge cleaning is completed under the non-stop condition, and the tail gas treatment continuity is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of tail gas treatment mechanisms, in particular to a tail gas treatment mechanism used in the field of petrochemical industry. Background Art

[0002] Petrochemical industry refers to the processing industry that uses oil and natural gas as raw materials to produce petroleum products and petrochemical products. During the processing of petrochemical products, a large amount of exhaust gas is generated to pollute the environment. Therefore, in the process of petrochemical product processing, exhaust gas treatment equipment is usually installed at the end of the processing flow to treat the exhaust gas generated during the processing; a spray device is set in the exhaust gas treatment equipment to spray the exhaust gas.

[0003] During the spray treatment process, when the exhaust gas comes into contact with the treatment liquid, some heavy metals react with the treatment liquid to produce precipitation and accumulate at the bottom of the equipment. When discharging the sludge, the equipment needs to be shut down for operation. Cleaning the sludge inside the equipment is often a cumbersome operation, resulting in excessive downtime and affecting the exhaust gas treatment efficiency. Summary of the Invention

[0004] The purpose of the present invention is to provide an exhaust gas treatment mechanism for the petrochemical industry to solve the following technical problems: the existing exhaust gas treatment mechanism needs to be shut down for operation when cleaning sludge, which is relatively cumbersome and leads to excessive downtime, affecting the exhaust gas treatment efficiency.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] The top wall of the exhaust gas treatment device is connected to the exhaust pipe, and the exhaust pipe is further provided with a spray mechanism, an air intake mechanism and a circulation mechanism. The exhaust gas treatment device is provided in the exhaust gas treatment device, and a liquid collecting box is provided in the exhaust gas treatment device. The bottom wall of the exhaust gas treatment box is provided with multiple movable rods movably provided on the bottom wall of the exhaust gas treatment box, one end of the movable rod is fixedly connected to the bottom wall of the exhaust gas treatment box, and a first spring is mounted on the movable rod. The inner surface of the top wall of the exhaust gas treatment box is movably provided with two blocks, and a linkage mechanism is provided between the two blocks and the exhaust gas treatment box. When the exhaust gas treatment box descends, the two blocks are driven to approach each other to block the exhaust pipe. A sewage hopper is provided at the bottom of the exhaust gas treatment box, an electric sewage valve is installed on the sewage hopper, a mounting rod is fixed on one side wall of the sewage hopper, and a resistance block is fixed on the bottom of the mounting rod. A touch switch is installed on the bottom wall of the treatment box, and the touch switch is electrically connected to the electric sewage valve. A rectangular opening is opened on the bottom wall of the treatment box, and inclined surfaces are symmetrically provided on the bottom wall of the liquid collecting box.

[0007] As a further solution of the present invention: the spray mechanism includes a liquid inlet pipe fixed on the side wall of the processing box, one end of the liquid inlet pipe is connected to a spray plate, a plurality of spray heads are arranged in an array at the bottom of the spray plate, and the other end of the liquid inlet pipe is connected to an external water source.

[0008] As a further solution of the present invention: the circulation mechanism includes a circulation pipe fixed on the side wall of the processing box, one end of the circulation pipe is connected to the liquid inlet pipe, and the other end extends into the interior of the liquid collecting box, and a filter is provided at the end of the circulation pipe extending into the interior of the liquid collecting box, and a circulation water pump is installed on the circulation pipe.

[0009] As a further solution of the present invention: a mounting rod is also installed on the side wall of the sewage hopper away from the mounting rod, a resistance block is fixed at the bottom of the mounting rod, a push button switch is installed on the bottom wall of the treatment box, the push button switch is electrically connected to the circulating water pump, and the touch switch and push button switch are respectively located directly below the two resistance blocks.

[0010] As a further solution of the present invention: the linkage mechanism includes a box body fixed on the inner surface of the top wall of the processing box, and a first moving rod and a second moving rod are movably provided on both side walls of the box body, one end of the first moving rod is fixedly connected to the stop block, and one end of the second moving rod is connected to a pull rope, and guide wheels are symmetrically installed on the inner surface of the top wall of the processing box, one end of the two pull ropes pass through the two guide wheels and are fixedly connected to the liquid collecting tank, a gear is installed in the box body, and a rack is provided on the side close to the first moving rod and the second moving rod, and the rack is engaged with the gear.

[0011] As a further solution of the present invention: a fixing block is fixed to the side of the first moving rod and the second moving rod that are away from each other, and a second spring is connected to the fixing block.

[0012] As a further solution of the present invention: it also includes a dirt collecting box, and the dirt collecting box is located below the rectangular opening.

[0013] As a further solution of the present invention: the air intake mechanism includes a main pipeline, the main pipeline is connected to an air intake pipe and two branch pipes, the two branch pipes are fixed in the processing box, and a plurality of air outlet holes are provided on the branch pipes.

[0014] Beneficial effects of the present invention:

[0015] (1) The present invention provides a liquid collecting tank that can move up and down in the treatment box, and configures a sewage hopper and an electric sewage valve at the bottom of the liquid collecting tank. The treated liquid falls into the liquid collecting tank, and the circulation mechanism discharges the treated liquid to maintain the constant weight of the liquid collecting tank. When the sludge gradually increases, the weight of the liquid collecting tank increases, and the sludge is discharged through the sewage hopper under the guidance of the inclined surface at the bottom of the liquid collecting tank, thereby avoiding shutdown and tedious operations, greatly improving the efficiency of exhaust gas treatment, and achieving the completion of sludge cleaning without stopping the machine, thereby ensuring the continuity of exhaust gas treatment;

[0016] (2) The present invention sets up a linkage structure and uses the descent of the collecting tank to force the two blocks to approach and block the exhaust pipe. Since the descent of the collecting tank will affect the circulation of the treatment liquid, in order to ensure the treatment effect of the exhaust gas, the exhaust gas discharge is temporarily stopped when the sludge is discharged, thereby extending the residence time of the exhaust gas in the treatment box and ensuring the treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 It is a schematic structural diagram of the present invention as a whole;

[0019] Figure 2 This is a schematic diagram of the structure of the interior of the processing box from a first perspective of the present invention;

[0020] Figure 3 This is a schematic structural diagram of the interior of the processing box from a second perspective of the present invention;

[0021] Figure 4 yes Figure 2 Enlarged view of point A in the middle;

[0022] Figure 5 It is a schematic diagram of the internal structure of the box body of the present invention;

[0023] Figure 6 It is a structural schematic diagram of the air intake mechanism of the present invention.

[0024] In the figure: 1. treatment box; 2. sewage collecting box; 3. air intake mechanism; 301. air intake pipe; 302. main pipe; 303. branch pipe; 304. air outlet; 4. exhaust pipe; 5. liquid inlet pipe; 6. spray plate; 7. spray head; 8. liquid collecting box; 9. inclined plane; 10. circulation pipe; 11. movable rod; 12. first spring; 13. sewage hopper; 14. electric sewage valve; 15. rectangular opening; 16. touch switch; 17. push button switch; 18. mounting rod; 19. resistance block; 20. pull rope; 21. box body; 22. guide wheel; 23. first movable rod; 24. block; 25. second movable rod; 26. rack; 27. gear; 28. fixed block; 29. second spring.

[0025] The accompanying drawings are for illustrative purposes only and are not to be construed as limiting the present invention. To better illustrate the present embodiment, certain components of the accompanying drawings may be omitted, enlarged, or reduced in size, and do not represent the size and shape of actual products. It is understandable to those skilled in the art that certain well-known structures and their descriptions may be omitted from the accompanying drawings. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0027] See also Figures 1 to 3As shown, the present invention is an exhaust gas treatment mechanism for the petrochemical industry, comprising a treatment box 1, an exhaust pipe 4 is connected to the top wall of the treatment box 1, a spray mechanism, an air intake mechanism 3 and a circulation mechanism are further provided in the treatment box 1, a liquid collecting box 8 is provided in the treatment box 1, a plurality of movable rods 11 are movably provided on the bottom wall of the treatment box 1, one end of the movable rod 11 is fixedly connected to the bottom wall of the liquid collecting box 8, a first spring 12 is sleeved on the movable rod 11, and two stoppers 24 are movably provided on the inner surface of the top wall of the treatment box 1, and the two stoppers 24 are connected to the bottom wall of the liquid collecting box 8. A linkage mechanism is provided between the collecting box 8. When the collecting box 8 descends, the two blocks 24 are driven to move closer to each other to block the exhaust pipe 4. A sewage hopper 13 is provided at the bottom of the collecting box 8. An electric sewage valve 14 is installed on the sewage hopper 13. A mounting rod 18 is fixed to one side wall of the sewage hopper 13. A resistance block 19 is fixed to the bottom of the mounting rod 18. A touch switch 16 is installed on the bottom wall of the processing box 1. The touch switch 16 is electrically connected to the electric sewage valve 14. A rectangular opening 15 is provided on the bottom wall of the processing box 1. The inclined plane 9 is symmetrically arranged; it also includes a sewage collecting box 2, which is located below the rectangular opening 15; the exhaust gas enters the treatment box 1 through the air intake mechanism 3, and the spray mechanism evenly sprays the treatment liquid to contact and react with the exhaust gas. The treated exhaust gas is discharged through the exhaust pipe 4, and the treated liquid after the reaction falls into the liquid collecting box 8 and is continuously reused through the circulation mechanism. The precipitation produced by the reaction also falls into the liquid collecting box 8. In the initial state, the falling and circulation of the treatment liquid maintain a dynamic balance, so that the height of the liquid collecting box 8 is fixed. As the precipitation increases, the liquid collecting box The weight of 8 gradually increases and moves downward to squeeze the first spring 12. When the amount of sludge is large enough, the collecting tank 8 drops to the bottom, causing the resistance block 19 to contact the touch switch 16, thereby starting the electric drain valve 14 to discharge the sludge at the bottom of the collecting tank 8 without stopping the machine. The descent of the collecting tank 8 is used to prompt the two blocks 24 to approach and block the exhaust pipe 4, so that the exhaust pipe 4 is temporarily closed when the sludge is discharged. On the one hand, it can promote the discharge of sludge, and on the other hand, it can prolong the residence time of the exhaust gas in the treatment box 1 to ensure the treatment effect.

[0028] See Figure 2 and Figure 3 The spraying mechanism includes a liquid inlet pipe 5 fixed on the side wall of the treatment box 1, one end of the liquid inlet pipe 5 is connected to the spray plate 6, and a plurality of spray heads 7 are arranged in an array at the bottom of the spray plate 6. The other end of the liquid inlet pipe 5 is connected to an external water source. The treated liquid enters the spray plate 6 through the liquid inlet pipe 5 and is then evenly sprayed out through the spray head 7.

[0029] See Figure 2 and Figure 3The circulation mechanism includes a circulation pipe 10 fixed on the side wall of the treatment box 1, one end of the circulation pipe 10 is connected to the liquid inlet pipe 5, and the other end extends into the interior of the liquid collecting box 8, and a filter is provided at the end of the circulation pipe 10 extending into the interior of the liquid collecting box 8. A circulating water pump is installed on the circulation pipe 10, and a mounting rod 18 is also installed on the side wall of the sewage hopper 13 away from the mounting rod 18. A resistance block 19 is fixed to the bottom of the mounting rod 18, and a key switch 17 is installed on the bottom wall of the treatment box 1. The key switch 17 is electrically connected to the circulating water pump, and the touch switch 16 and the key switch 17 are respectively located directly below the two resistance blocks 19; the circulation pipe 10 enables the treated liquid to be reused sustainably. When the liquid collecting box 8 drops to the bottom, the resistance block 19 will contact the key switch 17. When this switch is not pressed, the internal contacts are in a closed state and the circuit is connected. When the switch is pressed, the contacts are disconnected, the circuit is broken, and the power is cut off, thereby turning off the circulating water pump to avoid idling and damage.

[0030] See Figure 3 、 Figure 4 and Figure 5 The linkage mechanism includes a box body 21 fixed to the inner surface of the top wall of the processing box 1, and a first moving rod 23 and a second moving rod 25 are movably provided on the two side walls of the box body 21. One end of the first moving rod 23 is fixedly connected to the stopper 24, and one end of the second moving rod 25 is connected to the pull rope 20. The inner surface of the top wall of the processing box 1 is symmetrically installed with guide wheels 22. One end of the two pull ropes 20 passes through the two guide wheels 22 and is fixedly connected to the liquid collecting box 8. A gear 27 is installed in the box body 21. The first moving rod 23 and A rack 26 is provided on the side where the second movable rod 25 is close to each other, and the rack 26 is engaged with the gear 27. A fixed block 28 is fixed on the side where the first movable rod 23 and the second movable rod 25 are away from each other, and a second spring 29 is connected to the fixed block 28; when the collecting tank 8 is lowered, the second movable rod 25 is moved by pulling the pull rope 20. Under the action of the gear 27 and the rack 26, the two second movable rods 25 drive the two blocks 24 to approach each other, and the second spring 29 is squeezed to block the bottom of the exhaust pipe 4.

[0031] See Figure 1 and Figure 6 The air intake mechanism 3 includes a main pipe 302, to which an air intake pipe 301 and two branch pipes 303 are connected. The two branch pipes 303 are fixed in the treatment box 1, and a plurality of air outlet holes 304 are provided on the branch pipes 303. The exhaust gas enters the main pipe 302 through the air intake pipe 301, and then enters the treatment box 1 evenly through the plurality of air outlet holes 304 on the branch pipes 303 to contact the treatment liquid.

[0032] The working principle of the present invention is as follows: the exhaust gas enters the treatment box 1 through the air intake mechanism 3, the spray mechanism evenly sprays the treatment liquid to contact and react with the exhaust gas, the treated exhaust gas is discharged through the exhaust pipe 4, the treated liquid after the reaction falls into the liquid collection box 8, and is continuously reused through the circulation mechanism, and the precipitation produced by the reaction also falls into the liquid collection box 8. In the initial state, the falling and circulation of the treatment liquid maintain a dynamic balance, so that the height of the liquid collection box 8 is fixed. As the precipitation increases, the weight of the liquid collection box 8 gradually increases and moves downward and squeezes the first spring 12. When the amount of sludge is large enough, the liquid collection box 8 drops to the bottom, causing the two friction blocks 19 to contact with each other respectively. The contact switch 16 and the push button switch 17 start the electric drain valve 14 and shut down the circulating water pump, discharging the sludge at the bottom of the collecting tank 8. The collecting tank 8 descends and the second movable rod 25 is pulled by the pull rope 20. Under the action of the gear 27 and the rack 26, the two second movable rods 25 drive the two stoppers 24 to move closer to each other, thereby blocking the bottom of the exhaust pipe 4 and temporarily closing the exhaust pipe 4 during the sludge discharge. On the one hand, the air pressure in the treatment box 1 increases, which can promote the discharge of sludge. On the other hand, since the circulating water pump is shut down, the residence time of the exhaust gas in the treatment box 1 is prolonged to ensure the treatment effect, thereby ensuring the treatment effect.

[0033] The sludge enters the sewage collecting box 2. When the sludge is completely discharged, since the sewage hopper 13 is connected to the outside world, part of the exhaust gas treated inside the treatment box 1 will be discharged through the sewage hopper 13. At this time, under the action of the first spring 12, the liquid collecting box 8 moves upward and resets, the electric sewage valve 14 is closed, and the circulating water pump is started. Under the action of the second spring 29, the block 24 is reset, and normal exhaust gas treatment can be carried out.

[0034] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. An exhaust gas treatment mechanism for use in the petrochemical industry, comprising a treatment box (1), wherein an exhaust pipe (4) is connected to the top wall of the treatment box (1), and a spray mechanism, an air intake mechanism (3) and a circulation mechanism are further provided in the treatment box (1), characterized in that: A liquid collecting box (8) is provided in the processing box (1), and a plurality of movable rods (11) are movably provided on the bottom wall of the processing box (1), one end of the movable rod (11) is fixedly connected to the bottom wall of the liquid collecting box (8), and a first spring (12) is mounted on the movable rod (11). Two blocks (24) are movably provided on the inner surface of the top wall of the processing box (1), and a linkage mechanism is provided between the two blocks (24) and the liquid collecting box (8). When the liquid collecting box (8) descends, the two blocks (24) are driven to move closer to each other to block the exhaust pipe (4). A sewage hopper (13) is provided at the bottom of the liquid collecting box (8), an electric sewage valve (14) is installed on the sewage hopper (13), a mounting rod (18) is fixed on one side wall of the sewage hopper (13), a resistance block (19) is fixed on the bottom of the mounting rod (18), a touch switch (16) is installed on the bottom wall of the treatment box (1), the touch switch (16) is electrically connected to the electric sewage valve (14), a rectangular opening (15) is opened on the bottom wall of the treatment box (1), and inclined surfaces (9) are symmetrically provided on the bottom wall of the liquid collecting box (8).

2. The tail gas treatment mechanism for the petrochemical industry according to claim 1, characterized in that: The spray mechanism comprises a liquid inlet pipe (5) fixed on the side wall of the processing box (1), one end of the liquid inlet pipe (5) is connected to a spray plate (6), a plurality of spray heads (7) are arranged in an array at the bottom of the spray plate (6), and the other end of the liquid inlet pipe (5) is connected to an external water source.

3. The tail gas treatment mechanism for the petrochemical industry according to claim 2, characterized in that: The circulation mechanism comprises a circulation pipe (10) fixed on the side wall of the treatment box (1), one end of the circulation pipe (10) is connected to the liquid inlet pipe (5), and the other end extends into the interior of the liquid collecting box (8), and a filter is provided on the end of the circulation pipe (10) extending into the interior of the liquid collecting box (8), and a circulation water pump is installed on the circulation pipe (10).

4. The tail gas treatment mechanism for the petrochemical industry according to claim 3, characterized in that: A mounting rod (18) is further mounted on the side wall of the sewage hopper (13) away from the mounting rod (18), and a resistance block (19) is fixed at the bottom of the mounting rod (18). A key switch (17) is mounted on the bottom wall of the treatment box (1), and the key switch (17) is electrically connected to the circulating water pump. The touch switch (16) and the key switch (17) are respectively located directly below the two resistance blocks (19).

5. The tail gas treatment mechanism for the petrochemical industry according to claim 1, characterized in that: The linkage mechanism includes a box body (21) fixed on the inner surface of the top wall of the processing box (1), and a first moving rod (23) and a second moving rod (25) are movably arranged on the two side walls of the box body (21), one end of the first moving rod (23) is fixedly connected to the stopper (24), and one end of the second moving rod (25) is connected to a pull rope (20), and guide wheels (22) are symmetrically installed on the inner surface of the top wall of the processing box (1), and one end of the two pull ropes (20) passes through the two guide wheels (22) and is fixedly connected to the liquid collecting box (8), and a gear (27) is installed in the box body (21), and a rack (26) is provided on the side where the first moving rod (23) and the second moving rod (25) are close to each other, and the rack (26) is engaged with the gear (27).

6. The tail gas treatment mechanism for the petrochemical industry according to claim 5, characterized in that: A fixed block (28) is fixed on the side of the first moving rod (23) and the second moving rod (25) that are away from each other, and a second spring (29) is connected to the fixed block (28).

7. The tail gas treatment mechanism for the petrochemical industry according to claim 1, characterized in that: It also includes a dirt collecting box (2), which is located below the rectangular opening (15).

8. The tail gas treatment mechanism for the petrochemical industry according to claim 1, characterized in that: The air intake mechanism (3) comprises a main pipe (302), the main pipe (302) is connected to an air intake pipe (301) and two branch pipes (303), the two branch pipes (303) are fixed in the processing box (1), and a plurality of air outlet holes (304) are provided on the branch pipes (303).

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