Acid mist tower for removing acid mist from industrial waste gas

Abstract

The utility model relates to the field of waste gas purification, in particular to an acid mist tower for removing acid mist in industrial waste gas, comprising: a tower body; a first area, a second area, and a third area are fixedly arranged in sequence from bottom to top inside the tower body; wherein a waste gas inlet is opened on one side of the first area, and a waste gas outlet is opened on the top of the third area; wherein the bottom end of the first area is a liquid storage tank, and one side of the liquid storage tank is connected with a circulating water pump; wherein the second area comprises: a first main body, a stirring device fixedly arranged at the bottom end of the first main body, a first packing layer fixedly arranged at the upper end of the stirring device, and a first spray pipe fixedly arranged at the top end of the first main body; the first spray pipe is connected with a plurality of first spray heads; wherein the third area comprises: a second main body, a second packing layer fixedly arranged at the bottom end of the second main body, a second spray pipe fixedly arranged at the top end of the second main body, and a demister fixedly arranged at the top end of the second spray pipe; the second spray pipe is connected with a plurality of second spray heads.

Description

Technical Field

[0001] The utility model relates to the field of waste gas purification, in particular to an acid mist tower for removing acid mist in industrial waste gas. Background Art

[0002] The main equipment for removing acid mist in the existing waste gas treatment of industrial waste gas hydrogen chloride is an acid mist purification tower. For hydrogen chloride generated in some high-temperature processes, an acid mist cooler and a gas-liquid separator are often set at the front end of the acid mist tower to condense part of the hydrogen chloride gas into liquid water mist before entering the acid mist tower and collect it for reuse. However, this method is only applicable to the removal of hydrogen chloride in high-temperature waste gas with a high concentration of hydrogen chloride that can be recycled. Therefore, there is an urgent need in the market for an acid mist removal device suitable for low-concentration hydrogen chloride waste gas. Utility Model Content

[0003] The utility model aims to provide an acid mist tower for removing acid mist in industrial waste gas in view of the deficiencies in the prior art.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] An acid mist tower for removing acid mist from industrial waste gas comprises: a tower body; a first area, a second area, and a third area are fixedly arranged in sequence from bottom to top inside the tower body;

[0006] A waste gas inlet is provided at one side of the first area, and a waste gas outlet is provided at the top of the third area;

[0007] The bottom end of the first area is a liquid storage tank, and one side of the liquid storage tank is connected to a circulating water pump;

[0008] The second area includes: a first body, a stirring device fixedly arranged at the bottom end of the first body, a first filler layer fixedly arranged at the upper end of the stirring device, and a first spray pipe fixedly arranged at the top end of the first body; the first spray pipe is connected to a plurality of first spray heads;

[0009] The third area includes: a second body, a second filler layer fixedly arranged at the bottom end of the second body, a second spray pipe fixedly arranged at the top end of the second body, and a demister fixedly arranged at the top end of the second spray pipe; the second spray pipe is connected to a plurality of second spray heads.

[0010] Preferably, a first perspective window is formed on the side wall of the first area.

[0011] Preferably, a second perspective window is formed on the side wall of the second area.

[0012] Preferably, a third perspective window is formed on the side wall of the third area.

[0013] Preferably, the first packing layer and the second packing layer are both filled with ball ring packings.

[0014] Preferably, the first packing layer, the second packing layer, and the demister are all fixed to the inner wall of the tower body through grid plates.

[0015] Preferably, the circulating water pump is connected to the first spray pipe and the second spray pipe through pipelines respectively.

[0016] Preferably, the demister is a cyclone demister.

[0017] Preferably, a pH online detector is fixedly arranged on one side of the liquid storage tank.

[0018] The utility model adopts the above technical solution, and compared with the prior art, has the following technical effects:

[0019] The utility model causes the fillers in the first filler layer to flip over by stirring of the stirring device, thereby rapidly reducing the temperature of the exhaust gas entering the first filler layer, rapidly liquefying part of the hydrogen chloride gas, and making the temperature in the first filler layer uniform during the flipping process, while increasing the contact time between the filler and the spray head layer to increase the contact time between the exhaust gas and the spray liquid, thereby improving the removal efficiency of the hydrogen chloride in the acid mist tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the cross-sectional structure of the utility model;

[0021] The accompanying drawings of the present utility model are as follows:

[0022] The first area 1; the second area 2; the third area 3; the grid plate 4; the liquid storage tank 11; the circulating water pump 12; the first packing layer 22; the first spray head 23; the second packing layer 31; the second spray head 32; the demister 33; the first perspective window 13; the second perspective window 24; the third perspective window 34. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0026] Example

[0027] according to Figure 1 As shown, this embodiment provides an acid mist tower for removing acid mist in industrial waste gas, comprising: a tower body; a first area 1, a second area 2, and a third area 3 are fixedly arranged in sequence from bottom to top inside the tower body;

[0028] A waste gas inlet is provided at one side of the first area 1, and a waste gas outlet is provided at the top of the third area 3;

[0029] The bottom end of the first area 1 is a liquid storage tank 11, one side of the liquid storage tank 11 is connected to a circulating water pump 12, a first perspective window 13 is opened on the side wall of the first area 1, and a PH online detector is fixedly arranged on one side of the liquid storage tank 11;

[0030] The second area 2 includes: a first body, a stirring device 21 fixedly arranged at the bottom end of the first body, a first filler layer 22 fixedly arranged at the upper end of the stirring device 21, and a first spray pipe fixedly arranged at the top end of the first body; the first spray pipe is connected to a plurality of first spray heads 23, and a second perspective window 24 is opened on the side wall of the second area 2;

[0031] The third area 3 includes: a second body, a second packing layer 31 fixedly arranged at the bottom end of the second body, a second spray pipe fixedly arranged at the top end of the second body, and a demister 33 fixedly arranged at the top end of the second spray pipe; the second spray pipe is connected to a plurality of second spray heads 32, and a third perspective window 34 is opened on the side wall of the third area 3;

[0032] The first packing layer 22 and the second packing layer 31 are filled with ball ring packings, and the first packing layer 22, the second packing layer 31, and the demister 33 are fixed to the inner wall of the tower body through a grid plate 4;

[0033] The circulating water pump 12 is connected to the first spray pipe and the second spray pipe through pipelines respectively.

[0034] As a preferred implementation, the demister 33 is a cyclone demister.

[0035] As a preferred embodiment, the PH online detector adopts an online PH meter of model MIK-PH163 produced by Hangzhou Meikong Automation Technology Co., Ltd. A person skilled in the art can incorporate the above-mentioned online PH meter into this application without any creative work.

[0036] When in use, the waste gas enters from a waste gas inlet on one side of the first area 1, and is processed in sequence by the stirring device 21, the first packing layer 22, the second packing layer 31, and the demister 33, and then reaches the waste gas outlet at the top of the third area 3 for discharge. During the operation of the acid mist tower, the circulating water pump 12 circulates the alkali solution in the liquid storage tank 11 through the first spray head 23 and the second spray head 32 to continuously spray inside the tower body.

[0037] The utility model causes the fillers in the first filler layer to flip over by stirring of the stirring device, thereby rapidly reducing the temperature of the exhaust gas entering the first filler layer, rapidly liquefying part of the hydrogen chloride gas, and making the temperature in the first filler layer uniform during the flipping process, while increasing the contact time between the filler and the spray head layer to increase the contact time between the exhaust gas and the spray liquid, thereby improving the removal efficiency of the hydrogen chloride in the acid mist tower.

[0038] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. An acid mist tower for removing acid mist from industrial waste gas, characterized in that: include: tower body; The interior of the tower body is fixedly provided with a first area (1), a second area (2), and a third area (3) in sequence from bottom to top; A waste gas inlet is provided at one side of the first area (1), and a waste gas outlet is provided at the top of the third area (3); The bottom end of the first area (1) is a liquid storage tank (11), and one side of the liquid storage tank (11) is connected to a circulating water pump (12); The second area (2) comprises: a first body, a stirring device (21) fixedly arranged at the bottom end of the first body, a first filler layer (22) fixedly arranged at the upper end of the stirring device (21), and a first spray pipe fixedly arranged at the top end of the first body; the first spray pipe is connected to a plurality of first spray heads (23); The third area (3) comprises: a second main body, a second filler layer (31) fixedly arranged at the bottom end of the second main body, a second spray pipe fixedly arranged at the top end of the second main body, and a demister (33) fixedly arranged at the top end of the second spray pipe; the second spray pipe is connected to a plurality of second spray heads (32).

2. The acid mist tower for removing acid mist from industrial waste gas according to claim 1, characterized in that: A first perspective window (13) is provided on the side wall of the first area (1).

3. The acid mist tower for removing acid mist from industrial waste gas according to claim 1, characterized in that: A second perspective window (24) is provided on the side wall of the second area (2).

4. The acid mist tower for removing acid mist from industrial waste gas according to claim 1, characterized in that: A third perspective window (34) is provided on the side wall of the third area (3).

5. The acid mist tower for removing acid mist from industrial waste gas according to claim 1, characterized in that: The first packing layer (22) and the second packing layer (31) are both filled with ball ring packing.

6. The acid mist tower for removing acid mist from industrial waste gas according to claim 1, characterized in that: The first packing layer (22), the second packing layer (31), and the demister (33) are all fixed to the inner wall of the tower body via a grid plate (4).

7. The acid mist tower for removing acid mist from industrial waste gas according to claim 1, characterized in that: The circulating water pump (12) is connected to the first spray pipe and the second spray pipe through pipelines respectively.

8. The acid mist tower for removing acid mist from industrial waste gas according to claim 1, characterized in that: The demister (33) is a cyclone demister.

9. The acid mist tower for removing acid mist from industrial waste gas according to claim 1, characterized in that: A pH online detector is fixedly arranged on one side of the liquid storage tank (11).

Images