Demister tail gas advanced treatment device

Abstract

The utility model discloses a demister tail gas advanced treatment device, which relates to the technical field of tail gas treatment, and comprises a bottom plate, the upper end surface of the bottom plate is respectively provided with a gas washing box, a dehumidification box and a filter box through supporting legs, the bottom of one side of the gas washing box is connected with a first pipeline, and a second pipeline is arranged between the gas washing box and the dehumidification box; a third pipeline is installed between the dehumidification box and the filter box, an exhaust pipe is installed at the top of one side of the filter box, a dehumidification assembly is installed in the dehumidification box, a filter screen plate is installed on the inner wall of the filter box, a sweeping assembly is installed in the filter box, and two conical hoppers communicating with the interior of the gas washing box are welded to the bottom end of the gas washing box; and the bottom ends of the two conical hoppers are in threaded connection with sealing covers. According to the demister tail gas treatment device, tail gas of the demister is cleaned, dried and filtered through the gas washing box, the dehumidification box and the filter box respectively, so that the tail gas is deeply treated, the tail gas is ensured to reach the emission standard, and the practicability is better.

Description

Technical Field

[0001] The utility model relates to the technical field of tail gas treatment, in particular to a demister tail gas deep treatment device. Background Art

[0002] At present, the electric demisting method is usually used to demist and de-whiten the flue gas. Electric demisting refers to converting alternating current into direct current through an electrostatic control device and a DC high-voltage generator and sending it to the demisting device, forming a strong electric field between the corona wire (cathode) and the acid mist collecting plate (anode), ionizing the air molecules, and instantly generating a large number of electrons and positive and negative ions. These electrons and ions move in a directional manner under the action of the electric field force, forming a medium for capturing acid mist, and at the same time charging the acid mist particles. These charged acid mist particles move in a directional manner under the action of the electric field force and arrive at the anode plate for capturing acid mist. After that, the charged particles release electrons on the plate, so that the acid mist is gathered and flows to the acid storage tank of the demisting device under the action of gravity, thereby achieving the purpose of purifying the acid mist. However, the tail gas treated by the demisting device still contains some dust and moisture, which makes it difficult for the tail gas to meet the emission standards. Therefore, a demisting device for deep treatment of tail gas is provided. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a demister exhaust gas deep treatment device, which cleans, dries and filters the demister exhaust gas respectively through the provision of an air washing box, a dehumidification box and a filter box, thereby achieving deep treatment of the exhaust gas and ensuring that the exhaust gas meets the emission standards. The utility model has good practicality and overcomes the deficiencies in the prior art.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A demister tail gas deep treatment device comprises a base plate, the upper end surface of the base plate is respectively mounted on an air washing box, a dehumidification box and a filter box through supporting legs, a first pipe is connected to the bottom of one side of the air washing box, a second pipe is installed between the air washing box and the dehumidification box, a third pipe is installed between the dehumidification box and the filter box, an exhaust pipe is installed on the top of one side of the filter box, a dehumidification assembly is installed in the dehumidification box, a filter mesh plate is installed on the inner wall of the filter box, and a cleaning assembly is installed in the filter box.

[0006] Through the above scheme, the exhaust gas from the demister is cleaned, dried and filtered respectively by the set air washing box, dehumidification box and filter box, so as to achieve deep treatment of the exhaust gas, ensure that the exhaust gas meets the emission standards, and has good practicality.

[0007] Preferably, two conical buckets connected to the interior of the scrubber box are welded to the bottom end of the scrubber box, and sealing covers are screwed to the bottom ends of the two conical buckets.

[0008] Preferably, a top cover is provided at the top of the air washing box, a water injection port is provided on the top cover, and a box cover is provided on the water injection port.

[0009] Preferably, the dehumidification assembly includes a supporting mesh plate installed on the inner wall of the dehumidification box through a pull-out track, and a desiccant is placed on the supporting mesh plate.

[0010] Preferably, a door is provided on one side of the dehumidification box, and the supporting mesh plate is located above the connection between the third pipe and the dehumidification box.

[0011] Preferably, the cleaning assembly includes a screw rotatably installed in the filter box by a bearing, a cleaning rod is threaded on the screw, and both ends of the cleaning rod are in sliding contact with the inner wall of the filter box, a servo motor is installed on the outer wall of the filter box, and the output end of the servo motor is threadedly connected to one end of the screw.

[0012] Preferably, a sealing baffle is slidably inserted at the bottom of the filter box, the connection between the exhaust pipe and the filter box is located above the filter mesh plate, and the connection between the third pipe and the filter box is located below the filter mesh plate.

[0013] The beneficial effects of the utility model are:

[0014] The exhaust gas from the demister is cleaned, dried and filtered by the washing box, dehumidification box and filter box respectively, so as to achieve deep treatment of the exhaust gas, ensure that the exhaust gas meets the emission standards and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure from a first perspective of a demister tail gas deep treatment device proposed by the utility model.

[0016] Figure 2 This is a schematic diagram of the partial cross-section of the third dimension structure of a demister tail gas deep treatment device proposed by the utility model from a second viewing angle.

[0017] Figure 3 It is a partial cross-sectional three-dimensional structural schematic diagram from a third viewing angle of a demister tail gas deep treatment device proposed by the utility model.

[0018] Figure 4 A demister tail gas deep treatment device proposed by the utility model Figure 3 Enlarged structural diagram at A in the middle.

[0019] In the figure: 1, bottom plate; 2, dehumidification box; 3, first pipeline; 4, air washing box; 5, top cover; 6, box cover; 7, third pipeline; 8, filter box; 9, support mesh plate; 10, servo motor; 11, exhaust pipe; 12, second pipeline; 13, box door; 14, conical bucket; 15, sealing cover; 16, filter mesh plate; 17, cleaning rod; 18, screw; 19, sealing baffle. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Example 1, reference Figure 1-4 A demister tail gas deep treatment device comprises a bottom plate 1, the upper end surface of the bottom plate 1 is respectively mounted with a scrubber box 4, a dehumidifier box 2 and a filter box 8 through supporting legs, a first pipe 3 is connected to the bottom of one side of the scrubber box 4, a second pipe 12 is installed between the scrubber box 4 and the dehumidifier box 2, a third pipe 7 is installed between the dehumidifier box 2 and the filter box 8, an exhaust pipe 11 is installed at the top of one side of the filter box 8, a dehumidifier assembly is installed in the dehumidifier box 2, a filter screen plate 16 is installed on the inner wall of the filter box 8, and a cleaning assembly is installed in the filter box 8;

[0022] The bottom end of the scrubber box 4 is welded with two conical buckets 14 connected to the inside of the scrubber box 4, and the bottom ends of the two conical buckets 14 are screwed with sealing covers 15;

[0023] A top cover 5 is provided at the top of the air washing box 4, and a water injection port is provided on the top cover 5, and a box cover 6 is provided on the water injection port;

[0024] The dehumidification assembly includes a support mesh plate 9 installed on the inner wall of the dehumidification box 2 through a pull-out track, and a desiccant is placed on the support mesh plate 9;

[0025] A door 13 is provided on one side of the dehumidification box 2, and the support mesh plate 9 is located above the connection between the third pipe 7 and the dehumidification box 2;

[0026] The cleaning assembly includes a screw 18 rotatably mounted in the filter box 8 by a bearing, a cleaning rod 17 is screwed to the screw 18, and both ends of the cleaning rod 17 are in sliding contact with the inner wall of the filter box 8. A servo motor 10 is mounted on the outer wall of the filter box 8, and the output end of the servo motor 10 is screwed to one end of the screw 18;

[0027] A sealing baffle 19 is slidably inserted at the bottom of the filter box 8 . The connection between the exhaust pipe 11 and the filter box 8 is located above the filter mesh plate 16 , and the connection between the third pipe 7 and the filter box 8 is located below the filter mesh plate 16 .

[0028] Working principle: the exhaust gas discharged from the demister enters the washing box 4 along the first pipe 3 and is cleaned by clean water, then is dried by the desiccant along the second pipe 12, and enters the filter box 8 along the third pipe 7 and is filtered by the filter screen 16, effectively removing the dust and moisture in the exhaust gas, and finally is discharged from the exhaust pipe 11, thus realizing the deep treatment of the exhaust gas from the demister and ensuring that the exhaust gas meets the emission standards. It has good practicality. When it is necessary to clean the filter screen 16, turn on the servo motor 10 to drive the screw 18 to rotate, so that the cleaning rod 17 moves back and forth, and uses the bristles on the cleaning rod 17 to clean the dust on the filter screen 16, and at the same time, pull out the sealing baffle 19 to discharge the dust.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A demister tail gas deep treatment device, comprising a bottom plate (1), characterized in that: The upper end surface of the base plate (1) is respectively mounted on an air washing box (4), a dehumidification box (2) and a filter box (8) through supporting legs; a first pipe (3) is connected to the bottom of one side of the air washing box (4); a second pipe (12) is installed between the air washing box (4) and the dehumidification box (2); a third pipe (7) is installed between the dehumidification box (2) and the filter box (8); an exhaust pipe (11) is installed on the top of one side of the filter box (8); a dehumidification component is installed in the dehumidification box (2); a filter screen plate (16) is installed on the inner wall of the filter box (8); and a cleaning component is installed in the filter box (8).

2. A demister tail gas deep treatment device according to claim 1, characterized in that: Two conical buckets (14) connected to the inside of the gas washing box (4) are welded to the bottom end of the gas washing box (4), and sealing covers (15) are screwed to the bottom ends of the two conical buckets (14).

3. A demister tail gas deep treatment device according to claim 2, characterized in that: The top of the air washing box (4) is provided with a top cover (5), and a water injection port is provided on the top cover (5), and a box cover (6) is provided on the water injection port.

4. The demister tail gas deep treatment device according to claim 1, characterized in that: The dehumidification assembly comprises a supporting mesh plate (9) installed on the inner wall of the dehumidification box (2) through a pull-out track, and a desiccant is placed on the supporting mesh plate (9).

5. The demister tail gas deep treatment device according to claim 4, characterized in that: A box door (13) is provided on one side of the dehumidification box (2), and the supporting mesh plate (9) is located above the connection between the third pipeline (7) and the dehumidification box (2).

6. The demister tail gas deep treatment device according to claim 1, characterized in that: The cleaning assembly comprises a screw (18) rotatably mounted in a filter box (8) via a bearing, a cleaning rod (17) being screwed onto the screw (18), and both ends of the cleaning rod (17) are in sliding contact with the inner wall of the filter box (8), a servo motor (10) is mounted on the outer wall of the filter box (8), the output end of the servo motor (10) is screwed onto one end of the screw (18), and the upper end surface of the cleaning rod (17) is provided with uniform bristles.

7. The demister tail gas deep treatment device according to claim 1, characterized in that: A sealing baffle (19) is slidably inserted at the bottom of the filter box (8); the connection between the exhaust pipe (11) and the filter box (8) is located above the filter screen plate (16); and the connection between the third pipe (7) and the filter box (8) is located below the filter screen plate (16).

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