Acid-alkali waste gas treatment device

Abstract

The utility model discloses an acid-base waste gas treatment device, which belongs to the field of waste gas treatment, and comprises a treatment box, a particle filter plate and a neutralization filter plate are fixedly connected in the treatment box, a water supply pipe is arranged at the top of the treatment box, the water supply pipe is communicated with the top of the particle filter plate, and a liquid supply pipe is arranged at the top of the treatment box. The liquid supply pipe is communicated with the top of the neutralization filter plate, the bottom of the treatment box is fixedly connected with a water receiving box, and the middle of the water receiving box is divided into a sewage cavity and a neutralization cavity through a partition plate; water is fed to the particle filter plate through the water supply pipe to form a water curtain, so that dust or harmful particles in the waste gas are adsorbed and intercepted when the waste gas passes through the particle filter plate, then a neutralizing liquid is fed to the neutralizing filter plate through the liquid supply pipe to form a water curtain, and acid and alkali in the filtered waste gas are subjected to adsorption and neutralization reaction; the neutralization comprehensiveness of acid-base gas in the waste gas is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to an acid-base waste gas treatment device. Background Art

[0002] A spray tower is constructed by setting a nozzle at the top of the tower, from which a reaction solution that can physically or chemically react with certain components of the exhaust gas in the tower is sprayed into the tower. The reaction solution is sprayed into a mist or raindrop shape to allow it to fully contact with the exhaust gas, so that the reaction solution can fully react with certain components in the exhaust gas and the exhaust gas can be purified.

[0003] Industrial waste gas has different components according to different sources. Some are mainly dust, while others come from chemical plants, cement plants or electroplating plants, etc., and may contain a large amount of acidic or alkaline gases. These industrial waste gases are not allowed to be discharged directly into the atmosphere without purification. For industrial waste gas containing acidic or alkaline gases, it needs to be neutralized before it can be discharged. At this time, a spray tower is needed.

[0004] However, the existing spray towers have either low efficiency or poor treatment quality for acid-base waste gas, which cannot meet emission requirements. They only neutralize and absorb the acid-base gases in the waste gas through simple spraying. Although this method can also have a certain waste gas purification ability, the sprayed neutralizing liquid cannot form a complete interception, and there will still be spray gaps, resulting in incomplete purification. A small amount of waste gas will still not be purified and will be discharged, polluting the air. Utility Model Content

[0005] In order to overcome the above-mentioned technical problems, the purpose of the utility model is to provide an acid-base waste gas treatment device to solve the problem that in the prior art, the acid-base gases in the waste gas are neutralized and absorbed only by simple spraying. Although this method can also have a certain waste gas purification ability, the sprayed neutralizing liquid cannot form a complete interception, and there will still be spraying gaps, resulting in incomplete purification. A small amount of waste gas will still not be purified and will be discharged, polluting the air.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] The acid-base waste gas treatment device comprises a treatment box, wherein a particle filter plate and a neutralization filter plate are fixedly connected inside the treatment box, a water supply pipe is arranged on the top of the treatment box, and the water supply pipe is communicated with the top of the particle filter plate, a liquid supply pipe is arranged on the top of the treatment box, and the liquid supply pipe is communicated with the top of the neutralization filter plate, a water receiving box is fixedly connected to the bottom of the treatment box, and the middle of the water receiving box is divided into a sewage chamber and a neutralization chamber by a partition plate, and the bottoms of the particle filter plate and the neutralization filter plate are respectively communicated with the sewage chamber and the neutralization chamber.

[0008] As a further solution of the utility model: the particle filter plates and the neutralization filter plates are both provided in multiple groups.

[0009] As a further solution of the utility model: a plurality of water supply troughs are fixedly connected to the top of the treatment box, the plurality of water supply troughs are respectively connected to the top of the particle filter plate and the neutralization filter plate, and a plurality of water outlet holes are provided on the inner wall at the bottom of the water supply trough.

[0010] As a further solution of the utility model: the particle filter plate and the neutralization filter plate are both composed of multiple groups of steel wire meshes that are staggered and pasted together.

[0011] As a further solution of the utility model: a sieve plate is detachably connected to the inside of the sewage chamber.

[0012] As a further solution of the utility model: a stirring rod is rotatably connected inside the neutralization chamber.

[0013] As a further solution of the utility model: a stopper is fixedly connected to the inner wall of the bottom of the processing box, and the stopper is located between the particle filter plate and the neutralization filter plate.

[0014] Beneficial effects of the utility model:

[0015] In the utility model, water is delivered to the particle filter plate through a water supply pipe to form a water curtain, so that when the exhaust gas passes through the particle filter plate, dust or harmful particles in the exhaust gas are adsorbed and intercepted, and then the liquid supply pipe delivers the neutralizing liquid to the neutralization filter plate to form a water curtain, and the acid and alkali in the filtered exhaust gas are adsorbed and neutralized. The acid and alkali gases are fully intercepted by the water curtain on the mesh on the neutralization filter plate, so that the acid and alkali gases are prevented from remaining in the process of spraying neutralization, thereby improving the comprehensiveness of the neutralization of the acid and alkali gases in the exhaust gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the top view of the water supply tank in the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the particle filter plate in the utility model.

[0020] In the figure: 1, treatment box; 101, air inlet pipe; 102, air outlet pipe; 2, particle filter plate; 201, water supply pipe; 3, neutralization filter plate; 301, liquid supply pipe; 4, water receiving box; 401, sewage chamber; 402, neutralization chamber; 403, stirring rod; 404, sieve plate; 5, water supply trough; 501, water outlet hole; 6, stopper. DETAILED DESCRIPTION

[0021] 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 in 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.

[0022] like Figure 1-Figure 3 As shown, the acid-base waste gas treatment device includes a treatment box 1, and an air inlet pipe 101 and an air outlet pipe 102 are respectively arranged on both sides of the treatment box 1. The air inlet pipe 101 and the air outlet pipe 102 are respectively used for the entry and discharge of the acid-base waste gas after treatment. At the same time, a particle filter plate 2 and a neutralization filter plate 3 are fixedly connected inside the treatment box 1. The particle filter plate 2 is used to filter and intercept dust and particles in the acid-base waste gas, and the neutralization filter plate 3 is used to intercept and filter the acid-base gas in the acid-base waste gas. A water supply pipe 2 is arranged on the top of the treatment box 1. 01, a water supply pipe 201 is connected to a water source for water supply, and the water supply pipe 201 is connected to the top of the particle filter plate 2. At the same time, a liquid supply pipe 301 is arranged on the top of the treatment box 1, and the liquid supply pipe 301 is connected to the water source for providing neutralizing liquid, and the liquid supply pipe 301 is connected to the top of the neutralization filter plate 3. A water receiving box 4 is fixedly connected to the bottom of the treatment box 1, and the middle of the water receiving box 4 is divided into a sewage chamber 401 and a neutralization chamber 402 by a partition plate, and the bottoms of the particle filter plate 2 and the neutralization filter plate 3 are respectively connected to the sewage chamber 401 and the neutralization chamber 402.

[0023] like Figure 1 As shown, the particle filter plates 2 and the neutralization filter plates 3 are provided in multiple groups, and the acid-base waste gas is filtered by the multiple groups of particle filter plates 2 and the neutralization filter plates 3 to improve the filtering effect.

[0024] like Figure 1 and Figure 3 As shown, a plurality of water supply troughs 5 are fixedly connected to the top of the processing box 1, and the plurality of water supply troughs 5 are respectively connected to the top of the particle filter plate 2 and the neutralization filter plate 3, so as to provide water and neutralization liquid to the particle filter plate 2 and the neutralization filter plate 3. At the same time, a plurality of water outlet holes 501 are opened on the inner wall at the bottom of the water supply trough 5, and the water and the neutralization liquid are evenly fed to the top of the particle filter plate 2 and the neutralization filter plate 3 through the plurality of water outlet holes 501, so as to avoid uneven distribution of water and neutralization liquid on the particle filter plate 2 and the neutralization filter plate 3 and cause gaps, thereby improving the comprehensive coverage of water and neutralization liquid on the particle filter plate 2 and the neutralization filter plate 3.

[0025] like Figure 1 and Figure 2As shown, the particle filter plate 2 and the neutralization filter plate 3 are both composed of multiple groups of steel wire meshes that are staggered and attached to each other, which can provide multi-layer filtration and improve the filtration effect.

[0026] like Figure 1 As shown, a sieve plate 404 is detachably connected to the interior of the sewage chamber 401, and the dust and particles falling into the sewage chamber 401 are intercepted by the sieve plate 404. The sieve plate 404 can then be slidably removed for cleaning, thereby improving the convenience of cleaning.

[0027] like Figure 1 As shown, a stirring rod 403 is rotatably connected inside the neutralization chamber 402. The stirring rod 403 is driven to rotate by starting a driving motor on the side wall of the processing box 1. The stirring rod 403 stirs and mixes the neutralization liquid and acid-base gas inside the neutralization chamber 402 to increase the speed of the neutralization reaction.

[0028] like Figure 1 As shown, a block 6 is fixedly connected to the inner wall of the bottom of the treatment box 1, and the block 6 is located between the particle filter plate 2 and the neutralization filter plate 3. The block 6 separates the particle filter plate 2 and the neutralization filter plate 3 to prevent the water flowing on the particle filter plate 2 and the neutralization liquid flowing on the neutralization filter plate 3 from mixing inside the treatment box 1.

[0029] The working principle of the utility model is as follows: when the acid-base waste gas enters the processing box 1 through the air inlet pipe 101, the water supply device and the neutralizing liquid supply device are started at the same time to provide water and neutralizing liquid to the water supply pipe 201 and the liquid supply pipe 301, and the water and neutralizing liquid flow downward from the top of the particle filter plate 2 and the neutralizing filter plate 3, forming a water curtain on the surface and internal mesh of the particle filter plate 2 and the neutralizing filter plate 3. When the acid-base waste gas is blown onto the particle filter plate 2, the water curtain formed on the mesh of the particle filter plate 2 is used to The dust and harmful particles in the acid-base waste gas are adsorbed and intercepted, and then the acid-base waste gas flows to the position of the neutralization filter plate 3 again. At this time, the acid-base gas in the acid-base waste gas is adsorbed and intercepted by the neutralization liquid water curtain formed on the mesh holes of the neutralization filter plate 3, and the acid-base gas in the acid-base waste gas is cleaned. The water curtain formed by the neutralization filter plate 3 and the flow of the neutralization liquid is set to comprehensively adsorb and intercept the acid-base gas, thereby avoiding incomplete neutralization of the acid-base gas in the acid-base waste gas and improving the comprehensiveness of the neutralization of the acid-base gas.

[0030] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. Acid-base waste gas treatment device, comprising a treatment box (1), characterized in that: The processing box (1) is fixedly connected with a particle filter plate (2) and a neutralization filter plate (3) inside; a water supply pipe (201) is arranged on the top of the processing box (1); the water supply pipe (201) is connected to the top of the particle filter plate (2); a liquid supply pipe (301) is arranged on the top of the processing box (1); the liquid supply pipe (301) is connected to the top of the neutralization filter plate (3); a water receiving box (4) is fixedly connected to the bottom of the processing box (1); the middle of the water receiving box (4) is divided into a sewage chamber (401) and a neutralization chamber (402) by a partition plate; the bottoms of the particle filter plate (2) and the neutralization filter plate (3) are respectively connected to the sewage chamber (401) and the neutralization chamber (402).

2. The acid-base waste gas treatment device according to claim 1, characterized in that: The particle filter plates (2) and the neutralization filter plates (3) are both provided in multiple groups.

3. The acid-base waste gas treatment device according to claim 1, characterized in that: The top of the treatment box (1) is fixedly connected with a plurality of water supply grooves (5), and the plurality of water supply grooves (5) are respectively connected with the top of the particle filter plate (2) and the neutralization filter plate (3), and the bottom inner wall of the water supply groove (5) is provided with a plurality of water outlet holes (501).

4. The acid-base waste gas treatment device according to claim 1, characterized in that: The particle filter plate (2) and the neutralization filter plate (3) are both composed of multiple groups of steel wire meshes that are interlaced and pasted together.

5. The acid-base waste gas treatment device according to claim 1, characterized in that: A sieve plate (404) is detachably connected to the interior of the sewage chamber (401).

6. The acid-base waste gas treatment device according to claim 1, characterized in that: A stirring rod (403) is rotatably connected inside the neutralization chamber (402).

7. The acid-base waste gas treatment device according to claim 1, characterized in that: A stopper (6) is fixedly connected to the inner wall of the bottom of the processing box (1), and the stopper (6) is located between the particle filter plate (2) and the neutralization filter plate (3).

Images