Heavy aromatic tail gas recovery device for hydrogen peroxide fluidized bed process

Abstract

The utility model belongs to the technical field of hydrogen peroxide fluidized bed process heavy aromatics tail gas recovery, and provides a hydrogen peroxide fluidized bed process heavy aromatics tail gas recovery device which comprises a box body, a pair of mounting grooves are formed in each of the top and the bottom of the box body, and a pair of activated carbon fiber boards is mounted between each pair of mounting grooves. A clamping groove is formed in the upper end face of the activated carbon fiberboard, movable grooves are formed in the tops of the pair of mounting grooves located on the upper portion, fixing assemblies are installed in the movable grooves, an air inlet is formed in one side of the box body, an air outlet is formed in the side, away from the air inlet, of the box body, a fan is installed in the air outlet, and an exhaust pipe is installed on one side of the air outlet; one side of the exhaust pipe is connected with a gas conveying pipe, a mounting box is mounted between the exhaust pipe and the upper end face of the gas conveying pipe, and a driving gear is mounted in the mounting box. The heavy aromatic tail gas recovery device for the hydrogen peroxide fluidized bed process is simple and reasonable in structure, novel in design, simple to operate, high in practicability and convenient to widely popularize and use.

Description

Technical Field

[0001] The utility model relates to the technical field of heavy aromatic hydrocarbon tail gas recovery in the hydrogen peroxide fluidized bed process, and specifically relates to a heavy aromatic hydrocarbon tail gas recovery device for the hydrogen peroxide fluidized bed process. Background Technique

[0002] The heavy aromatic hydrocarbon tail gas recovery device for the hydrogen peroxide fluidized bed process is a device used to efficiently recover heavy aromatic hydrocarbons in waste gas. Its main function is to reduce the emission of heavy aromatic hydrocarbons in the tail gas, so as to achieve the purposes of reducing consumption, reducing costs, and eliminating pollution.

[0003] The heavy aromatic hydrocarbon tail gas recovery device recovers the heavy aromatic hydrocarbon tail gas by the activated carbon fiber adsorption method. The activated carbon fiber adsorption method utilizes the large specific surface area and high adsorption efficiency of activated carbon fibers to recover heavy aromatic hydrocarbons in waste gas. When the filtration effect of the activated carbon fiber board of some current heavy aromatic hydrocarbon tail gas recovery devices decreases over time, the content of heavy aromatic hydrocarbons in the discharged tail gas will also increase. This not only reduces the recovery effect of heavy aromatic hydrocarbons, but also increases environmental pollution. At the same time, the replacement method of the activated carbon fiber board of some existing heavy aromatic hydrocarbon tail gas recovery devices is relatively cumbersome, reducing work efficiency.

[0004] Therefore, we make improvements on this and propose a heavy aromatic hydrocarbon tail gas recovery device for the hydrogen peroxide fluidized bed process. Content of the Utility Model

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A heavy aromatic hydrocarbon tail gas recovery device for the hydrogen peroxide fluidized bed process of the utility model includes a box body. A pair of installation grooves are provided at both the top and the bottom of the box body. A pair of activated carbon fiber boards are installed between the two pairs of installation grooves. A card slot is provided on the upper end surface of the activated carbon fiber board. A movable groove is provided at the top of each of the pair of installation grooves located above. A fixing component is installed in the movable groove. An air inlet is provided on one side of the box body. An air outlet is provided on the side of the box body away from the air inlet. A fan is installed in the air outlet. An exhaust pipe is installed on one side of the air outlet. An air delivery pipe is connected to one side of the exhaust pipe. An installation box is installed between the upper end surfaces of the exhaust pipe and the air delivery pipe. A driving gear is installed in the installation box. A switch valve I is installed at one end of the exhaust pipe. A rotating shaft I is installed on the upper end surface of the switch valve I. The top end of the rotating shaft I penetrates through the bottom of the installation box and is installed with a driven gear I. A switch valve II is installed at the position of the air delivery pipe close to the exhaust pipe. A rotating shaft II is installed on the upper end surface of the switch valve II. The top end of the rotating shaft II penetrates through the top of the installation box and is installed with a driven gear II.

[0007] As a preferred technical solution of the present utility model, the fixing assembly includes a transmission rod, a limiting block and a compression spring. The limiting block is installed on the periphery of the transmission rod in the moving groove. A compression spring is sleeved on the periphery of the transmission rod above the limiting block. Two ends of the compression spring are respectively connected with the upper end surface of the limiting block and the top of the moving groove.

[0008] As a preferred technical solution of the present utility model, the size of the bottom end of the transmission rod matches the size of the card slot. The top end of the transmission rod penetrates through the upper end surface of the box body and is installed with a pulling block.

[0009] As a preferred technical solution of the present utility model, a tail gas concentration monitor is installed at a position on the upper end surface of the exhaust pipe close to the air outlet.

[0010] As a preferred technical solution of the present utility model, a motor is installed on the upper end surface of the installation box. The output end of the motor penetrates through the top of the installation box and is connected with the driving gear. The tail gas concentration monitor is electrically connected with the motor through a wire.

[0011] As a preferred technical solution of the present utility model, the driving gear meshes with the first driven gear and the second driven gear respectively.

[0012] As a preferred technical solution of the present utility model, an intake pipe is installed on one side of the air inlet. The other end of the air delivery pipe is connected with one side of the intake pipe.

[0013] As a preferred technical solution of the present utility model, a controller is installed on one side of the box body.

[0014] The beneficial effects of the present utility model are:

[0015] 1. Through the coordinated use of the tail gas concentration monitor, the motor, the driving gear, the first driven gear, the first rotating shaft, the first switching valve, the second driven gear, the second rotating shaft and the second switching valve, when the tail gas concentration monitor monitors that the concentration of heavy aromatics in the tail gas filtered by the activated carbon fiber board exceeds the specified standard, the motor is started. The motor drives the driving gear to rotate. Since the driving gear meshes with the first driven gear and the second driven gear respectively, when the driving gear rotates, it drives the first driven gear and the second driven gear to rotate simultaneously. The first driven gear drives the first switching valve to rotate through the first rotating shaft, so that the first switching valve is in a closed state. The second driven gear drives the second switching valve to rotate through the second rotating shaft, so that the second switching valve is in an open state. At this time, the unqualified tail gas enters the intake pipe through the air delivery pipe, and then enters the box body and is secondarily filtered by the activated carbon fiber board. Furthermore, the recovery effect of heavy aromatics in the tail gas can be improved, and at the same time, the pollution to the atmosphere is also reduced.

[0016] 2. Through the coordinated use of the pulling block, the transmission rod, the compression spring, the limit block and the slot, when the activated carbon fiber board needs to be replaced, the staff lifts the pulling block upwards, and the pulling block drives the bottom end of the transmission rod to move upward and out of the slot. At this time, the staff can easily and quickly pull out the old activated carbon fiber board and insert the new activated carbon fiber board into the installation slot. When the slot moves to the position of the transmission rod, under the action of the compression spring, the compression spring pushes the transmission rod downward through the limit block and inserts it into the slot to fix the new activated carbon fiber board, thereby achieving the effect of quickly and conveniently replacing the activated carbon fiber board, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other objects, features and advantages of the present disclosure will become more apparent through a more detailed description of exemplary embodiments of the present disclosure in conjunction with the accompanying drawings, wherein like reference numerals generally represent like components in the exemplary embodiments of the present disclosure.

[0018] Figure 1 It is a three-dimensional diagram of the heavy aromatic tail gas recovery device of the hydrogen peroxide fluidized bed process of the utility model;

[0019] Figure 2 This is a front cross-sectional view of a heavy aromatic tail gas recovery device of a hydrogen peroxide fluidized bed process of the utility model;

[0020] Figure 3 This is a front cross-sectional view of a heavy aromatic tail gas recovery device of a hydrogen peroxide fluidized bed process of the utility model;

[0021] Figure 4 It is a top view of the cross-sectional view of the heavy aromatic tail gas recovery device of the hydrogen peroxide fluidized bed process of the utility model;

[0022] Figure 5 It is a top view of the cross-sectional view of the installation box of the heavy aromatic tail gas recovery device of the hydrogen peroxide fluidized bed process of the utility model;

[0023] Figure 6 The utility model is a heavy aromatic tail gas recovery device of hydrogen peroxide fluidized bed process. Figure 2 A magnified view of middle;

[0024] Figure 7 The utility model is a heavy aromatic tail gas recovery device of hydrogen peroxide fluidized bed process. Figure 2 Enlarged view of B.

[0025] In the figure: 1. Box body; 101. Air inlet; 102. Air outlet; 2. Installation groove; 201. Movable groove; 3. Activated carbon fiber board; 301. Card slot; 4. Fixing component; 401. Transmission rod; 402. Limit block; 403. Compression spring; 404. Pulling block; 5. Fan; 6. Installation box; 601. Driving gear; 602. First driven gear; 603. Second driven gear; 7. First switching valve; 701. First rotating shaft; 8. Second switching valve; 801. Second rotating shaft; 9. Tail gas concentration monitor; 10. Exhaust pipe; 11. Air delivery pipe; 12. Motor; 13. Controller; 14. Air inlet pipe. Detailed implementation mode

[0026] The preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present disclosure more thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art.

[0027] Example: As Figures 1-7 shown, the heavy aromatics tail gas recovery device of the hydrogen peroxide fluidized bed process of the present utility model includes a box body 1. A pair of installation grooves 2 are provided at both the top and the bottom of the box body 1. A pair of activated carbon fiber boards 3 are installed between the two pairs of installation grooves 2. A card slot 301 is provided on the upper end surface of the activated carbon fiber board 3. Movable grooves 201 are provided at the tops of the pair of installation grooves 2 located above. A fixing component 4 is installed in the movable groove 201. An air inlet 101 is provided on one side of the box body 1. An air outlet 102 is provided on the side of the box body 1 away from the air inlet 101. A fan 5 is installed in the air outlet 102. An exhaust pipe 10 is installed on one side of the air outlet 102. An air delivery pipe 11 is connected to one side of the exhaust pipe 10. An installation box 6 is installed between the upper end surfaces of the exhaust pipe 10 and the air delivery pipe 11. A driving gear 601 is installed in the installation box 6. A first switching valve 7 is installed at one end of the exhaust pipe 10. A first rotating shaft 701 is installed on the upper end surface of the first switching valve 7. The top end of the first rotating shaft 701 penetrates through the bottom of the installation box 6 and a first driven gear 602 is installed. A second switching valve 8 is installed at a position of the air delivery pipe 11 close to the exhaust pipe 10. A second rotating shaft 801 is installed on the upper end surface of the second switching valve 8. The top end of the second rotating shaft 801 penetrates through the top of the installation box 6 and a second driven gear 603 is installed.

[0028] Among them, the fixing component 4 includes a transmission rod 401, a limiting block 402 and a compression spring 403. A limiting block 402 is installed on the periphery of the transmission rod 401 in the moving groove 201. A compression spring 403 is sleeved on the periphery of the transmission rod 401 above the limiting block 402. The two ends of the compression spring 403 are respectively connected to the upper end surface of the limiting block 402 and the top of the moving groove 201. When the clamping groove 301 moves to the position of the transmission rod 401, under the action of the compression spring 403, the compression spring 403 pushes the transmission rod 401 downward through the limiting block 402 and inserts it into the clamping groove 301 to fix the new activated carbon fiber board 3.

[0029] Among them, the size of the bottom end of the transmission rod 401 matches the size of the clamping groove 301. The top end of the transmission rod 401 penetrates through the upper end surface of the box body 1 and is installed with a pulling block 404, and the transmission rod 401 is driven to move upward through the pulling block 404.

[0030] Among them, a tail gas concentration monitor 9 is installed on the upper end surface of the exhaust pipe 10 near the air outlet 102, and the tail gas concentration monitor 9 monitors the concentration of heavy aromatics in the filtered tail gas.

[0031] Among them, a motor 12 is installed on the upper end surface of the installation box 6. The output end of the motor 12 penetrates through the top of the installation box 6 and is connected to the driving gear 601. The tail gas concentration monitor 9 is electrically connected to the motor 12 through a wire. When the tail gas concentration monitor 9 monitors that the concentration of heavy aromatics in the tail gas filtered by the activated carbon fiber board 3 exceeds the specified standard, the motor 12 is started, and the motor 12 drives the driving gear 601 to rotate.

[0032] Among them, the driving gear 601 meshes with the driven gear one 602 and the driven gear two 603 respectively. Since the driving gear 601 meshes with the driven gear one 602 and the driven gear two 603 respectively, when the driving gear 601 rotates, it drives the driven gear one 602 and the driven gear two 603 to rotate simultaneously.

[0033] Among them, an intake pipe 14 is installed on one side of the air inlet 101. The other end of the air delivery pipe 11 is connected to one side of the intake pipe 14. The tail gas enters the box body 1 through the intake pipe 14 and the air inlet 101, and the unqualified tail gas enters the intake pipe 14 through the air delivery pipe 11.

[0034] Among them, a controller 13 is installed on one side of the box body 1, and the controller 13 can play a control role.

[0035] Working principle: Start the fan 5, and the exhaust gas enters the box body 1 through the intake pipe 14 and the air inlet 101. When the exhaust gas passes through a pair of activated carbon fiber boards 3, the heavy aromatic hydrocarbons in the exhaust gas can be filtered and recovered. When the exhaust concentration monitor 9 detects that the concentration of heavy aromatic hydrocarbons in the exhaust gas filtered by the activated carbon fiber board 3 exceeds the specified standard, the motor 12 is started, and the motor 12 drives the driving gear 601 to rotate. Since the driving gear 601 is respectively meshed with the driven gear 1 602 and the driven gear 2 603, the driving gear 601 drives the driven gear 1 602 and the driven gear 2 603 to rotate at the same time when the driving gear 601 rotates. The driven gear 1 602 drives the switch valve 1 7 to rotate through the rotating shaft 1 701, so that the switch valve 1 7 is in a closed state. The driven gear 2 603 drives the switch valve 2 8 to rotate through the rotating shaft 2 801, so that the switch valve 2 8 is in an open state. At this time, the exhaust gas that does not meet the standard passes through The gas pipeline 11 enters into the air intake pipe 14, and then enters into the box body 1 for secondary filtration through the activated carbon fiber board 3, thereby improving the recovery effect of heavy aromatic hydrocarbons in the exhaust gas, and also reducing the pollution to the atmosphere. When the activated carbon fiber board 3 needs to be replaced, the staff lifts up the pulling block 404, and the pulling block 404 drives the bottom end of the transmission rod 401 to move upward and disengage from the slot 301. At this time, the staff can easily and quickly pull out the old activated carbon fiber board 3 and insert the new activated carbon fiber board 3 into the installation slot 2. When the slot 301 moves to the position of the transmission rod 401, under the action of the compression spring 403, the compression spring 403 pushes the transmission rod 401 to move downward and insert it into the slot 301 through the limit block 402, fixing the new activated carbon fiber board 3, thereby achieving the effect of quickly and conveniently replacing the activated carbon fiber board 3, thereby improving work efficiency.

[0036] Those skilled in the art should understand that the above description of the embodiments of the present invention is only for the purpose of exemplifying the beneficial effects of the embodiments of the present invention, and is not intended to limit the embodiments of the present invention to any given examples.

[0037] The various embodiments of the utility model have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A hydrogen peroxide fluidized bed process heavy aromatic tail gas recovery device, comprising a housing (1), characterized in that: A pair of mounting grooves (2) are provided at the top and bottom of the housing (1), a pair of activated carbon fiber boards (3) are installed between the two pairs of mounting grooves (2), a clamping groove (301) is provided at the upper end surface of the activated carbon fiber board (3), a movable groove (201) is provided at the top of the pair of mounting grooves (2) located at the top, a fixing component (4) is installed in the movable groove (201), an air inlet (101) is provided on one side of the housing (1), an air outlet (102) is provided on the side of the housing (1) away from the air inlet (101), a fan (5) is installed in the air outlet (102), an exhaust pipe (10) is installed on one side of the air outlet (102), and one side of the exhaust pipe (10) is connected to an air inlet (101). An air pipe (11), a mounting box (6) is mounted between the upper end surfaces of the exhaust pipe (10) and the air supply pipe (11), a driving gear (601) is mounted in the mounting box (6), a switch valve (7) is mounted at one end of the exhaust pipe (10), a rotating shaft (701) is mounted on the upper end surface of the switch valve (7), a top end of the rotating shaft (701) passes through the bottom of the mounting box (6) and a driven gear (602) is mounted thereon, a switch valve (8) is mounted at a position of the air supply pipe (11) close to the exhaust pipe (10), a rotating shaft (801) is mounted on the upper end surface of the switch valve (8), a top end of the rotating shaft (801) passes through the top of the mounting box (6) and a driven gear (603) is mounted thereon.

2. The heavy aromatic tail gas recovery device of the hydrogen peroxide fluidized bed process according to claim 1, characterized in that: The fixing assembly (4) comprises a transmission rod (401), a limit block (402) and a compression spring (403); the transmission rod (401) is provided with a limit block (402) on its periphery in the movable groove (201); the transmission rod (401) is provided with a compression spring (403) on its periphery above the limit block (402); and the two ends of the compression spring (403) are respectively connected to the upper end surface of the limit block (402) and the top of the movable groove (201).

3. The heavy aromatic tail gas recovery device of the hydrogen peroxide fluidized bed process according to claim 2 is characterized in that: The size of the bottom end of the transmission rod (401) matches the size of the slot (301), and the top end of the transmission rod (401) passes through the upper end surface of the box body (1) and is equipped with a pulling block (404).

4. The heavy aromatic tail gas recovery device of hydrogen peroxide fluidized bed process according to claim 1, characterized in that: An exhaust gas concentration monitor (9) is installed on the upper end surface of the exhaust pipe (10) near the gas outlet (102).

5. The heavy aromatic tail gas recovery device of hydrogen peroxide fluidized bed process according to claim 4, characterized in that: A motor (12) is installed on the upper end surface of the installation box (6), the output end of the motor (12) passes through the top of the installation box (6) and is connected to the driving gear (601), and the exhaust gas concentration monitor (9) is electrically connected to the motor (12) via a wire.

6. The heavy aromatic tail gas recovery device of hydrogen peroxide fluidized bed process according to claim 1, characterized in that: The driving gear (601) is meshed with the driven gear 1 (602) and the driven gear 2 (603) respectively.

7. The heavy aromatic tail gas recovery device of hydrogen peroxide fluidized bed process according to claim 1, characterized in that: An air intake pipe (14) is installed on one side of the air intake port (101), and the other end of the air delivery pipe (11) is connected to one side of the air intake pipe (14).

8. The heavy aromatic tail gas recovery device of hydrogen peroxide fluidized bed process according to claim 1, characterized in that: A controller (13) is installed on one side of the box (1).

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