Acid mist absorption and comprehensive recycling device in crude phenol production

Abstract

The utility model discloses an acid mist absorption comprehensive reutilization device in crude phenol production, which relates to the technical field of acid mist treatment and comprises a reaction tank, a through hole is arranged on the upper surface of the reaction tank, a connecting pipe is rotatably connected in the through hole, an air inlet pipe is rotatably connected at the upper end of the connecting pipe, a plurality of mounting holes are arranged on the side wall of the connecting pipe, and the mounting holes are communicated with the through hole. A gas outlet pipe is fixedly embedded in each mounting hole, one end of each gas outlet pipe and the lower end of the connecting pipe are fixedly connected with one-way valves, a driving mechanism is arranged on the upper surface of the reaction tank, and the connecting pipe rotates through the driving mechanism. Water can be injected into the reaction tank through the feeding port, then acid mist enters the reaction tank through the air inlet pipe and then enters each layer of the reaction tank through the air outlet pipe, then the motor is started to enable the connecting pipe to rotate, and then each air outlet pipe plays a stirring role, so that the acid mist can be better absorbed by water.

Description

Technical Field

[0001] The utility model relates to the technical field of acid mist treatment, in particular to an acid mist absorption and comprehensive recycling device in crude phenol production. Background Art

[0002] When producing crude phenol in a coal chemical workshop, concentrated sulfuric acid needs to be added to the crude phenol decomposer to directly react with the pure phenol salt to produce a large amount of high-temperature acid mist containing acid and phenol. In order to reduce costs, the acid mist needs to be recovered and treated.

[0003] Among them, an acid mist absorption and recycling system with publication number CN203447970U includes a reuse water device, a primary spray absorption device and a secondary spray absorption device. The reuse water device is connected to the primary spray absorption device through a water connecting pipe. The primary spray absorption device is provided with a primary spray air inlet pipe. The primary spray absorption device is connected to the secondary spray absorption device through an air connecting pipe. The secondary spray absorption device is provided with an alkali inlet and a secondary spray liquid inlet pipe.

[0004] However, the existing acid mist absorption and recycling system uses a spraying method to treat the acid mist, which will result in a portion of the acid mist not being sprayed by water or not having sufficient time to merge with water, thereby affecting the treatment effect of the acid mist. Utility Model Content

[0005] In view of the above problems existing in the existing acid mist absorption and recycling system, the utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide an acid mist absorption and comprehensive recycling device in crude phenol production, which solves the problem that the existing acid mist absorption and recycling system uses a spraying method to treat the acid mist, which will cause a part of the acid mist to not be sprayed by water or not have sufficient time to merge with water, thereby affecting the treatment effect of the acid mist.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] The invention discloses a device for absorbing and comprehensively recycling acid mist in crude phenol production, comprising a reaction tank, wherein a through hole is provided on the upper surface of the reaction tank, a connecting pipe is rotatably connected inside the through hole, an air inlet pipe is rotatably connected to the upper end of the connecting pipe, a plurality of mounting holes are provided on the side wall of the connecting pipe, an air outlet pipe is fixedly embedded inside each of the mounting holes, a one-way valve is fixedly connected to one end of each of the air outlet pipes and the lower end of the connecting pipe, a driving mechanism is provided on the upper surface of the reaction tank, the connecting pipe is rotated by the driving mechanism, a discharge pipe is fixedly connected below the reaction tank, an annular plate is slidably provided at the lower end of the discharge pipe, two slide grooves are provided inside the annular plate, fixing mechanisms are provided inside the two slide grooves, a filter frame is fixedly connected to the inner side of the annular plate through two fixing mechanisms, the filter frame matches the discharge pipe, and a purification mechanism is provided on the side wall of the reaction tank.

[0009] Preferably, the driving mechanism includes a motor, a first bevel gear and a second bevel gear, the motor is fixedly connected to the upper surface of the reaction tank, the first bevel gear is fixedly sleeved on the output end of the motor, the second bevel gear is fixedly sleeved on the wall of the connecting pipe, and the first bevel gear is meshed with the second bevel gear.

[0010] Preferably, the fixing mechanism includes two sleeves, two screw rods and two knobs, the two screw rods are respectively rotatably connected to the side walls of the corresponding slide grooves, one end of the two screw rods respectively penetrates the side walls of the corresponding slide grooves and is respectively fixedly connected to the corresponding knobs, and each sleeve is respectively threadedly sleeved on the rod wall of the corresponding screw rod.

[0011] Preferably, the purification mechanism includes a U-shaped tube, a mounting frame, an exhaust pipe and activated carbon, the mounting frame is fixedly connected to the side wall of the reaction tank, the U-shaped tube is fixedly connected between the reaction tank and the mounting frame, the exhaust pipe is fixedly connected to the lower surface of the mounting frame, and the activated carbon is placed inside the mounting frame.

[0012] Preferably, a feed inlet is provided above the reaction tank.

[0013] Preferably, two mounting plates are fixedly connected to the lower surface of the reaction tank, and a lifting cylinder is fixedly connected between the two mounting plates and the annular plate.

[0014] Preferably, a sealing groove is formed around the inner wall of the filter frame, and a sealing rubber ring is arranged inside the sealing groove.

[0015] Preferably, two fixing grooves are provided on the outer surface of the filter frame, and the two fixing grooves are matched with corresponding sleeves respectively.

[0016] Preferably, the inner walls of the two slide grooves are each provided with two limit grooves, and limit blocks are slidably arranged inside the two limit grooves, and each limit block is respectively fixedly connected to the side wall of the corresponding sleeve.

[0017] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0018] 1. The utility model can inject water into the interior of the reaction tank through the feed port, and then the acid mist enters the interior of the reaction tank through the air inlet pipe, and then enters each layer of the reaction tank through the air outlet pipe, and then the motor is started to rotate the connecting pipe, and then each air outlet pipe plays a stirring role, so that the acid mist can be better absorbed by water.

[0019] 2. The utility model places the filter frame in the middle of the annular plate, then rotates two knobs to rotate the two screws, and then moves the two sleeves to the inside of the corresponding fixing grooves, so that the filter frame can be fixed. The filter frame is mainly used to collect particles in the acid mist. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 For the utility model Figure 1 A cross-sectional view of

[0022] Figure 3 For the utility model Figure 2 A magnified schematic diagram of part A;

[0023] Figure 4 For the utility model Figure 2 An enlarged schematic diagram of part B.

[0024] Description of reference numerals:

[0025] 1. Reaction tank; 2. Connecting pipe; 3. Inlet pipe; 4. Outlet pipe; 5. Discharge pipe; 6. Ring plate; 7. Filter frame; 8. Motor; 9. First bevel gear; 10. Second bevel gear; 11. Sleeve; 12. Screw rod; 13. Knob; 14. U-shaped pipe; 15. Mounting frame; 16. Exhaust pipe; 17. Activated carbon; 18. Mounting plate; 19. Lifting cylinder; 20. Sealing rubber ring; 21. Limit block; 22. One-way valve; 23. Feed inlet. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0027] The utility model embodiment discloses a device for absorbing and comprehensively recycling acid mist in crude phenol production.

[0028] Embodiment 1

[0029] Reference Figure 1-4 The invention discloses a device for absorbing and comprehensively reusing acid mist in crude phenol production, comprising a reaction tank 1, a through hole being provided on the upper surface of the reaction tank 1, a connecting pipe 2 being rotatably connected inside the through hole, an air inlet pipe 3 being rotatably connected to the upper end of the connecting pipe 2, a plurality of mounting holes being provided on the side wall of the connecting pipe 2, an air outlet pipe 4 being fixedly embedded inside each mounting hole, a one-way valve 22 being fixedly connected to one end of each air outlet pipe 4 and the lower end of the connecting pipe 2, a driving mechanism being provided on the upper surface of the reaction tank 1, the driving mechanism comprising a motor 8, a first bevel gear 9 and a second bevel gear 10, the motor 8 being fixedly connected to the upper surface of the reaction tank 1, the first bevel gear 9 being fixedly sleeved on the output end of the motor 8, the second bevel gear 10 being fixedly sleeved on the pipe wall of the connecting pipe 2, the first bevel gear 9 being meshed with the second bevel gear 10, the connecting pipe 2 being rotated by the driving mechanism, and a feed port being provided above the reaction tank 1.

[0030] Water can be injected into the interior of the reaction tank 1 through the feed port 23, and then the acid mist enters the interior of the reaction tank 1 through the air inlet pipe 3, and then enters each layer of the reaction tank 1 through the air outlet pipe 4, and then the motor 8 is started to rotate the connecting pipe 2, and then each air outlet pipe 4 plays a stirring role, so that the acid mist can be better absorbed by water.

[0031] Reference Figure 1-3 A discharge pipe 5 is fixedly connected to the bottom of the reaction tank 1, and a ring plate 6 is slidably provided at the lower end of the discharge pipe 5. Two slide grooves are provided inside the ring plate 6, and fixing mechanisms are provided inside the two slide grooves. The fixing mechanisms include two sleeves 11, two screw rods 12 and two knobs 13. The two screw rods 12 are rotatably connected to the side walls of the corresponding slide grooves, and one end of the two screw rods 12 passes through the side walls of the corresponding slide grooves and is fixedly connected to the corresponding knobs 13 respectively. Each sleeve 11 is threadedly sleeved on the rod wall of the corresponding screw rod 12. A filter frame 7 is fixedly connected to the inner side of the ring plate 6 through two fixing mechanisms. The filter frame 7 matches the discharge pipe 5. Two fixing grooves are provided on the outer surface of the filter frame 7, and the two fixing grooves match the corresponding sleeves 11 respectively.

[0032] Put the filter frame 7 into the middle of the annular plate 6, then rotate the two knobs 13 to rotate the two screw rods 12, and then move the two sleeves 11 to the inside of the corresponding fixing grooves respectively, so that the filter frame 7 can be fixed. The filter frame 7 is mainly used to collect particles in the acid mist.

[0033] Reference Figure 1-2A purification mechanism is provided on the side wall of the reaction tank 1, and the purification mechanism includes a U-shaped tube 14, a mounting frame 15, an exhaust pipe 16 and activated carbon 17. The mounting frame 15 is fixedly connected to the side wall of the reaction tank 1, the U-shaped tube 14 is fixedly connected between the reaction tank 1 and the mounting frame 15, the exhaust pipe 16 is fixedly connected to the lower surface of the mounting frame 15, and the activated carbon 17 is placed inside the mounting frame 15.

[0034] Activated carbon 17 can be used to absorb odors in acid mist.

[0035] Embodiment 2

[0036] Based on Example 1, refer to Figure 1-3 Two mounting plates 18 are fixedly connected to the lower surface of the reaction tank 1 , and a lifting cylinder 19 is fixedly connected between the two mounting plates 18 and the annular plate 6 .

[0037] The filter frame 7 can be conveniently sleeved on the pipe wall of the discharge pipe 5 by utilizing the lifting cylinder 19 .

[0038] Embodiment 3

[0039] Based on Example 1, refer to Figure 1-3 A sealing groove is formed around the inner wall of the filter frame 7, and a sealing rubber ring 20 is arranged inside the sealing groove.

[0040] The sealing rubber pad 20 can improve the sealing performance between the discharge pipe 5 and the filter frame 7 .

[0041] Embodiment 4

[0042] Based on Example 1, refer to Figure 1-3 The inner walls of the two slide grooves are provided with two limit grooves, and the inner parts of the two limit grooves are slidably provided with limit blocks 21, and each limit block 21 is respectively fixedly connected to the side wall of the corresponding sleeve 11. The two limit blocks 21 can prevent the sleeve 11 from rotating with the corresponding screw rod 12.

Claims

1. A device for absorbing and comprehensively recycling acid mist in crude phenol production, comprising a reaction tank (1), characterized in that: The upper surface of the reaction tank (1) is provided with a through hole, a connecting pipe (2) is rotatably connected inside the through hole, an air inlet pipe (3) is rotatably connected to the upper end of the connecting pipe (2), a plurality of mounting holes are provided on the side wall of the connecting pipe (2), an air outlet pipe (4) is fixedly embedded inside each mounting hole, one end of each air outlet pipe (4) and the lower end of the connecting pipe (2) are fixedly connected to a one-way valve (22), a driving mechanism is provided on the upper surface of the reaction tank (1), the connecting pipe (2) is rotated by the driving mechanism, a discharge pipe (5) is fixedly connected below the reaction tank (1), an annular plate (6) is slidably provided at the lower end of the discharge pipe (5), two sliding grooves are provided inside the annular plate (6), a fixing mechanism is provided inside the two sliding grooves, a filter frame (7) is fixedly connected to the inner side of the annular plate (6) through two fixing mechanisms, the filter frame (7) matches the discharge pipe (5), and a purification mechanism is provided on the side wall of the reaction tank (1).

2. The device for absorbing and comprehensively recycling acid mist in crude phenol production according to claim 1, characterized in that: The driving mechanism comprises a motor (8), a first bevel gear (9) and a second bevel gear (10); the motor (8) is fixedly connected to the upper surface of the reaction tank (1); the first bevel gear (9) is fixedly sleeved on the output end of the motor (8); the second bevel gear (10) is fixedly sleeved on the wall of the connecting pipe (2); and the first bevel gear (9) is meshed with the second bevel gear (10).

3. The device for absorbing and comprehensively recycling acid mist in crude phenol production according to claim 1, characterized in that: The fixing mechanism comprises two sleeves (11), two screw rods (12) and two knobs (13); the two screw rods (12) are respectively rotatably connected to the side walls of the corresponding slide grooves; one end of the two screw rods (12) respectively penetrates the side walls of the corresponding slide grooves and is respectively fixedly connected to the corresponding knobs (13); each sleeve (11) is respectively threadedly sleeved on the rod wall of the corresponding screw rod (12).

4. The device for absorbing and comprehensively recycling acid mist in crude phenol production according to claim 1, characterized in that: The purification mechanism comprises a U-shaped tube (14), a mounting frame (15), an exhaust pipe (16) and activated carbon (17); the mounting frame (15) is fixedly connected to the side wall of a reaction tank (1); the U-shaped tube (14) is fixedly connected between the reaction tank (1) and the mounting frame (15); the exhaust pipe (16) is fixedly connected to the lower surface of the mounting frame (15); and the activated carbon (17) is placed inside the mounting frame (15).

5. The device for absorbing and comprehensively recycling acid mist in crude phenol production according to claim 1, characterized in that: A feed inlet (23) is provided above the reaction tank (1).

6. The device for absorbing and comprehensively recycling acid mist in crude phenol production according to claim 1, characterized in that: Two mounting plates (18) are fixedly connected to the lower surface of the reaction tank (1), and a lifting cylinder (19) is fixedly connected between the two mounting plates (18) and the annular plate (6).

7. The device for absorbing and comprehensively recycling acid mist in crude phenol production according to claim 1, characterized in that: A sealing groove is formed around the inner wall of the filter frame (7), and a sealing rubber ring (20) is arranged inside the sealing groove.

8. The device for absorbing and comprehensively recycling acid mist in crude phenol production according to claim 1, characterized in that: The outer surface of the filter frame (7) is provided with two fixing grooves, and the two fixing grooves are matched with corresponding sleeves (11) respectively.

9. The device for absorbing and comprehensively recycling acid mist in crude phenol production according to claim 3, characterized in that: The inner walls of the two slide grooves are each provided with two limit grooves, and limit blocks (21) are slidably arranged inside the two limit grooves, and each limit block (21) is respectively fixedly connected to the side wall of the corresponding sleeve (11).

Images