CN110449010A - A kind of novel horizontal spray column of exhaust-gas treatment - Google Patents

Abstract

The invention discloses a novel horizontal spray tower for waste gas treatment, which comprises a tower body arranged horizontally, two ends of the tower body are respectively provided with an air inlet and an air outlet, and a fan is installed at the air outlet; The first water pipe, the first packing layer, the second water pipe and the second packing layer are set at intervals in the body from left to right; the first water pump, the first liquid storage tank, the second water pump and the second liquid storage tank are also arranged outside the tower , the first water pump is installed on the first water pipe, the first water pipe extends into the first liquid storage tank, the second water pump is installed on the second water pipe, and the second water pipe extends into the second liquid storage tank; the first filling layer faces the air intake A groove is formed on one side of the mouth. The novel horizontal spray tower has the advantages of being able to be installed indoors, having high purification efficiency and utilizing reaction liquid more efficiently.

Description

A new horizontal spray tower for waste gas treatment

technical field

The invention relates to the technical field of environmental protection equipment, more specifically, it relates to a novel horizontal spray tower for waste gas treatment.

Background technique

With the gradual enhancement of human environmental protection, human beings are more and more concerned about the quality of the surrounding living environment. The hydrogen sulfide or sulfur dioxide gas and a large number of dust particles contained in industrial exhaust gas, among which hydrogen sulfide gas can not only cause poisoning of pipelines and catalysts, deterioration of process conditions, corrosion of equipment, but also cause quite serious environmental pollution. It even endangers the survival of human beings; and the dust emission will form high-density air dust near the industrial area, which directly affects the nearby air quality, land environment and water quality environment, has a profound impact on the environment, and directly affects the lives of nearby residents.

Pickling is a method of using acid solution to remove scale and rust on the steel surface. During the pickling process, waste gas will inevitably be generated due to chemical reactions. There are many kinds of harmful gases in the pickling waste gas. If it is not treated and purified, it will be Emissions will cause serious pollution to the atmosphere. The treatment method of pickling waste gas in the prior art is generally to use a spray tower for spray purification. By adding liquid medicine to the spray liquid, the harmful However, since the pickling exhaust gas contains both acidic substances such as hydrogen sulfide, alkaline substances such as ammonia, and even malodorous gases, it is necessary to set up multiple spray towers when using spray purification. The shower tower needs to use different spray liquids for spraying operations, so that each spray tower can remove a certain harmful substance in a targeted manner, the production cost is large, and the site occupies a large space. At the same time, the exhaust gas needs to pass through multiple sprays If the tower is used for treatment, the pressure drop loss will be large, which will increase the power consumption of the tower, and the purification efficiency will be low. If multiple harmful gases are purified in the same spray tower, it is easy to form mixed salt, which is extremely difficult to deal with , is not easy to reuse, and belongs to solid waste, which is easy to cause secondary pollution.

Most of the current spray towers are vertical, and there are the following shortcomings in the specific application process:

1. The height of the tower is more than 4-5 meters, and the requirements for the installation site are relatively high, so it is difficult to install indoors. If the purification tower is installed outdoors, due to the low temperature in winter, the purification tower is easy to freeze and cannot be used.

2. The filter layer and water retaining layer inside the traditional spray purification tower are arranged in a bottom-up order. There is a spray mechanism above the filter layer. The exhaust gas only moves upward in the purification tower and cannot fully communicate with the filter layer. The chemical reaction leads to incomplete exhaust gas purification, which makes the exhaust gas purification efficiency poor.

In view of this, it is necessary to provide a novel spray tower to solve or at least alleviate the above-mentioned technical defects.

Contents of the invention

The main purpose of the present invention is to provide a new type of horizontal spray tower for exhaust gas treatment, aiming to solve the technical problems of the prior art that the vertical spray tower is installed outdoors, the tower body is easy to freeze in winter and the exhaust gas purification efficiency is poor .

In order to achieve the above object, the present invention provides a novel horizontal spray tower for waste gas treatment, comprising:

A tower body, the tower body is arranged horizontally, the two ends of the tower body are respectively provided with an air inlet and an air outlet, and the air outlet is equipped with a fan;

The first water pipe, the first packed layer, the second water pipe and the second packed layer are arranged at intervals from left to right in the tower body;

The tower is also provided with a first water pump, a first liquid storage tank, a second water pump and a second liquid storage tank, the first water pump is installed on the first water pipe, and one end of the first water pipe extends into the In the first liquid storage tank, the second water pump is installed on the second water pipe, and one end of the second water pipe extends into the second liquid storage tank;

A groove is formed on a side of the first filling layer facing the air inlet.

Preferably, the side of the first filling layer facing the air inlet has a wavy or arcuate surface.

Preferably, at least two first filling ports are provided on the first packing layer, and second packing ports are provided on the second packing layer.

Preferably, the part where the first water pipe and the second water pipe extend into the tower body is provided with a plurality of spray heads.

Preferably, a filter layer is further provided at the end of the tower body close to the air inlet, and foam is arranged in the filter layer.

Preferably, an overflow port is provided near the bottom of the tower body.

Preferably, a viewing window is also provided on the tower body.

In the above technical solution of the present invention, the new horizontal spray tower for waste gas treatment includes a tower body, the tower body is arranged horizontally, the two ends of the tower body are respectively provided with an air inlet and an air outlet, and a fan is installed at the air outlet; The first water pipe, the first packed layer, the second water pipe and the second packed layer are arranged at intervals from left to right inside the tower; the first water pump, the first liquid storage tank, the second water pump and the second liquid storage are also arranged outside the tower tank, the first water pump is installed on the first water pipe, the first water pipe extends into the first liquid storage tank, the second water pump is installed on the second water pipe, and the second water pipe extends into the second liquid storage tank; the first filling layer faces the inlet A groove is formed on one side of the gas port. In the above technical solution, since the horizontal structure is adopted, the requirement for the height of the mounting parts is reduced, so it can be installed indoors, which solves the problem that the tower freezes and cannot be used in winter. In addition, by providing grooves in the first filling layer, the contact area between the waste gas and the reaction solution is increased, and the purification efficiency is improved. At the same time, with the arrangement of two water pumps and liquid storage tanks, different concentrations of reaction liquid can be set in the first liquid storage tank and the second liquid storage tank according to actual needs, so that the reaction liquid can be used more effectively and the production cost can be saved. . The invention has the advantages of being able to be installed indoors, having high purification efficiency and utilizing reaction liquid more efficiently.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some implementations of the present invention. For those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative effort.

Fig. 1 is the front view of the novel horizontal spray tower used for waste gas treatment in the embodiment of the present invention;

Fig. 2 is the top view of the novel horizontal spray tower used for waste gas treatment in the embodiment of the present invention;

Fig. 3 is a left view of the new horizontal spray tower used for waste gas treatment according to the embodiment of the present invention.

In the figure: 1—tower body; 2—the first filling layer; 3—the second filling layer; 4—the first water pipe; 5—the second water pipe; 6—the first liquid storage tank; 7—the second liquid storage tank; 8—first water pump; 9—second water pump; 10—fan; 11—air inlet; 12—air outlet; 13—wavy surface; 14—first filling port; 15—second filling port; 16—nozzle ; 17—window; 18—overflow port.

Detailed ways

In order to make the purpose, features, and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the following described The embodiments are only some of the embodiments of the present invention, but not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

It should be noted that all directional indications (such as up, down, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship, movement conditions, etc. between the components in a certain posture (as shown in the drawings), If the specific posture changes, the directional indication also changes accordingly.

In addition, in the present invention, descriptions such as "first", "second" and so on are used for description purposes only, and should not be understood as indicating or implying their relative importance or implicitly indicating the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features.

Moreover, the technical solutions of the various embodiments of the present invention can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered as a combination of technical solutions. Does not exist, nor is it within the scope of protection required by the present invention.

It should be noted that the directions in the present invention are based on the directions shown in FIG. 1 , that is, the “up, down, left, and right” in the present invention correspond to the “up, down, left, and right” directions in FIG. 1 respectively.

Referring to Fig. 1-Fig. 3, the present invention provides a novel horizontal spray tower for exhaust gas treatment, comprising:

The tower body 1, the tower body 1 is arranged horizontally, the two ends of the tower body 1 are respectively provided with an air inlet 11 and an air outlet 12, and the air outlet 12 is equipped with a fan 10;

The first water pipe 4, the first packed layer 2, the second water pipe 5 and the second packed layer 3 are arranged at intervals from left to right in the tower body 1;

The tower body 1 is also provided with a first water pump 8, a first liquid storage tank 6, a second water pump 9 and a second liquid storage tank 7. The first water pump 8 is installed on the first water pipe 4, and the first water pipe 4 extends into the first water pipe 4. In the liquid storage tank 6, the second water pump 9 is installed on the second water pipe 5, and the second water pipe 5 extends into the second liquid storage tank 7;

A groove is formed on a side of the first filling layer 2 facing the air inlet 11 .

In the above embodiment, due to the adoption of the horizontal structure, the requirement for the height of the mounting parts is reduced, so it can be installed indoors, which solves the problem that the tower body 1 freezes and cannot be used in winter. In addition, by providing grooves in the first filling layer 2, the contact area between the waste gas and the reaction liquid is increased, and the purification efficiency is improved. At the same time, two water pumps and liquid storage tanks are used to replace the technical solution in the prior art that the first water pipe 4 and the second water pipe 5 share the liquid storage tank, and the liquid storage tank is used to place the reaction liquid. Different concentrations of reaction liquid can be set in the first liquid storage tank 6 and the second liquid storage tank 7 according to actual needs, so that the reaction liquid can be used more effectively and the production cost can be saved. Specifically, the concentration of the reaction solution in the first liquid storage tank 6 can be set higher, and the concentration of the reaction solution in the second liquid storage tank 7 can be set lower, because the harmful substances of the waste gas will be reduced when passing through the first filling layer 2. , so we use a higher concentration of the reaction solution when the exhaust gas just enters the tower body 1. What needs to be explained here is that in some technical solutions, the reaction solution will be recycled and reused, but recycling the reaction solution also requires cost. If the reaction solution can be fully utilized, it is equivalent to reducing the purification cost. To sum up, this embodiment has the advantages of being able to be installed indoors, having high purification efficiency and utilizing the reaction liquid more efficiently.

As a specific implementation of the above-mentioned embodiment, the first filling layer 2 faces the air inlet 11 and has a wave-shaped surface 13 or a circular arc surface. The specific shape is not limited here, as long as the surface of the first filling layer 2 can be enlarged. The contact area of the exhaust gas is sufficient. Those skilled in the art can also understand that the side of the second filling layer 3 facing the first filling layer 2 can also be configured as a wave-shaped surface 13 or a circular arc surface.

In addition, at least two first filling ports 14 are provided on the first packing layer 2 , and second packing ports 15 are provided on the second packing layer 3 . Because setting the filling layer as a wavy surface 13 or grooves may cause subsequent filling difficulties (compared with the regular rectangle in the traditional technology, it will be more difficult to fill the filling layer with a groove structure). Therefore, two or even more first filling ports 14 can be provided to ensure that the first filling layer 2 is filled. The above-mentioned first filling layer 2 and second filling layer 3 may be filled with polypropylene.

In addition, the parts where the first water pipe 4 and the second water pipe 5 extend into the tower body 1 are provided with a plurality of spray heads 16 . The spraying direction of the nozzle 16 can be perpendicular to the direction of the airflow or opposite to the direction of the airflow, but it must be ensured that the water will be sprayed onto the first filling layer 2 and the second filling layer 3 .

Further, the end of the tower body 1 close to the air inlet 11 is also provided with a filter layer, and foam is arranged in the filter layer. The foam is mainly used to absorb larger particles in the exhaust air. In addition, during the operation of the spray tower, it is easy to produce "fog" with a particle size of 10-60 microns. The "fog" not only contains water, but also dissolves sulfuric acid, sulfate, sulfur dioxide, etc., which will cause serious damage to the tower body corrosion. Therefore, a defogging layer can also be provided near the air outlet 12 to remove the “fog” droplets in the tower body 1 .

Further, a bottom plate can be set in the tower body 1, and a mesh is set on the bottom plate, and the used reaction liquid is recovered from the mesh to the recovery tank or directly flows into the overflow tank, at a position where the tower body 1 is slightly higher than the bottom plate An overflow port 18 is provided to prevent the clogging of the stencil from causing the used reaction liquid to fill up the tower body 1 .

In addition, a viewing window 17 is provided on the tower body 1, and the viewing window 17 can be set at any suitable position, and is mainly used for inspecting the working conditions of the equipment in the tower body 1.

The above is only a preferred embodiment of the present invention, and the scope of protection of the present invention is not limited to the above-mentioned embodiments. All technical solutions belonging to the thinking of the present invention belong to the scope of protection of the present invention. It should be pointed out that for those in the technical field For those of ordinary skill, some improvements and modifications without departing from the principles of the present invention should also be regarded as the protection scope of the present invention.

Claims (7)

1. a kind of novel horizontal spray column of exhaust-gas treatment characterized by comprising

Tower body, the tower body are in horizontal arrangement, and the both ends of the tower body are respectively arranged with air inlet and air outlet, the gas outlet Blower is installed；

The first water pipe, the first filled layer, the second water pipe and the second filled layer are arranged at intervals in the tower body from left to right；

The first water pump, the first reservoir, the second water pump and the second reservoir, the first water pump peace are additionally provided with outside the tower body Loaded on first water pipe, one end of first water pipe is protruded into first reservoir, and second water pump is installed on institute The second water pipe is stated, one end of second water pipe is protruded into second reservoir；

First filled layer forms fluted towards the one side of the air inlet.

2. the novel horizontal spray column of exhaust-gas treatment according to claim 1, which is characterized in that first filled layer Towards the wavy face of the air inlet one side or arc surface.

3. the novel horizontal spray column of exhaust-gas treatment according to claim 1, which is characterized in that first filled layer On be provided at least two first feeding ports, be provided with the second feeding port on second filled layer.

4. the novel horizontal spray column of exhaust-gas treatment according to any one of claim 1-3, which is characterized in that described The part that first water pipe and second water pipe protrude into the tower body is provided with multiple spray heads.

5. the novel horizontal spray column of exhaust-gas treatment according to any one of claim 1-3, which is characterized in that described Tower body is additionally provided with filter layer close to one end of the air inlet, is provided with foam in the filter layer.

6. the novel horizontal spray column of exhaust-gas treatment according to any one of claim 1-3, which is characterized in that described Tower body is provided with overflow port close to the position of bottom.

7. the novel horizontal spray column of exhaust-gas treatment according to any one of claim 1-3, which is characterized in that described Form is additionally provided on tower body.