CN212262839U

CN212262839U - Adjustable dry-process and semi-dry-process desulfurization reaction device

Info

Publication number: CN212262839U
Application number: CN202020795128.2U
Authority: CN
Inventors: 王东岗; 张双进; 王胜利; 张玉燕
Original assignee: Beijing Handong Environmental Engineering Co ltd
Current assignee: Beijing Handong Environmental Engineering Co ltd
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2021-01-01
Anticipated expiration: 2030-05-14

Abstract

An adjustable dry and semi-dry desulphurization reaction device comprises a smoke inlet pipe, a desulphurization ejector, a reaction chamber, a smoke distribution pipeline, a reaction tower, a bag-type dust collector, an air door and a main flue; the smoke inlet pipe is arranged on the reaction chamber, the desulfurization injector is arranged on the reaction chamber, the desulfurizer pipe is arranged on the desulfurizer storage device and communicated with the desulfurization injector, and an automatic control valve is arranged at one end of the desulfurizer pipe close to the desulfurization injector; the air door is arranged on the main flue and separates the reaction chamber from the main flue; the smoke distributing pipeline is arranged at the smoke inlet end of the reaction tower and is communicated with the main smoke channel; the baffle door of the smoke distributing pipeline is arranged on the smoke distributing pipeline; the smoke exhaust pipeline is arranged at the smoke outlet end of the reaction tower, and the bag-type dust collector is arranged on the smoke exhaust pipeline. The utility model can adapt to the load change of different flue gas volumes and the change of SO2 concentration in the flue gas, and has wide application range; the desulfurization efficiency is high, and the operation is stable; the reactor automatically opens (closes) the air door of the inlet, realizes centralized control and is convenient to operate.

Description

Adjustable dry-process and semi-dry-process desulfurization reaction device

Technical Field

The utility model relates to a flue gas desulfurization equipment technical field especially relates to an adjustable dry process semidry process desulfurization reaction unit.

Background

Sulfur dioxide (formula SO2) is the most common, simplest, irritating sulfur oxide. One of the main atmospheric pollutants. Volcanic eruptions of such gases and sulfur dioxide generation in many industrial processes are also possible. Since coal and petroleum generally contain elemental sulfur, sulfur dioxide is produced during combustion. When sulfur dioxide dissolves in water, sulfurous acid is formed. If sulfurous acid is further oxidized in the presence of PM2.5, sulfuric acid (a main component of acid rain) is rapidly and efficiently produced. In 2017, 10 and 27 months, the carcinogen list published by the international cancer research institution of the world health organization is preliminarily collated and referred, and sulfur dioxide is in the 3-class carcinogen list; therefore, the treatment of sulfur dioxide is urgent. The existing dry or semi-dry desulfurizing towers in the market adopt single-hole or multi-hole inlet gas to be converged into one tower or adopt semi-circulation flue gas to enter the same desulfurizing tower. When the amount of the flue gas changes, the desulfurization efficiency and the stability in operation of the system are greatly reduced, the desulfurization efficiency when the amount of the flue gas changes under different loads cannot be ensured, and bed collapse and blockage events often occur; in order to solve the problems, the application provides an adjustable dry-process and semi-dry-process desulfurization reaction device.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

In order to solve the technical problems existing in the background technology, the utility model provides an adjustable dry and semi-dry desulphurization reaction device which can adapt to the load change of different flue gas volumes and the change of SO2 concentration in the flue gas and has wide application range; the desulfurization efficiency under different conditions can be met, the desulfurization efficiency is high, and the operation is stable; the reactor can automatically open (close) the air door of the inlet according to the change of the smoke volume, thereby reducing the labor capacity of field workers, realizing centralized control and convenient operation.

(II) technical scheme

The utility model provides an adjustable dry and semi-dry desulphurization reaction device, which comprises a smoke inlet pipe, a desulfurizer storage device, a desulfurizer pipe, a desulphurization injector, a reaction chamber, a smoke distribution pipeline baffle door, a reaction tower, a smoke exhaust pipeline, a bag-type dust remover, an air door and a main flue;

the smoke inlet pipe is arranged on the reaction chamber and is communicated with the reaction chamber; the desulfurizing ejector is arranged on the reaction chamber, the desulfurizing agent pipe is arranged on the desulfurizing agent storage device and communicated with the desulfurizing ejector, and one end of the desulfurizing agent pipe close to the desulfurizing ejector is provided with an automatic control valve;

the reaction chamber is communicated with the main flue, and the air door is arranged on the main flue and separates the reaction chamber from the main flue; the smoke distributing pipeline is arranged at the smoke inlet end of the reaction tower and is communicated with the main smoke channel; the baffle door of the smoke distributing pipeline is arranged on the smoke distributing pipeline and is positioned between the smoke distributing pipeline and the main flue;

the smoke exhaust pipeline is arranged at the smoke outlet end of the reaction tower, and the bag-type dust collector is arranged on the smoke exhaust pipeline and communicated with the outside.

Preferably, the automatic control valve is provided with a sulfur dioxide concentration sensor, and the size of the automatic control valve can be controlled according to the sulfur dioxide concentration.

Preferably, the reaction tower is in signal connection with a sulfur dioxide concentration sensor.

Preferably, the reaction tower is connected with a damper control.

Preferably, the number of reaction columns is multiple.

Preferably, the number of smoke distribution pipes is consistent with the number of reaction towers.

Preferably, the number of the baffle doors of the smoke distribution pipeline is consistent with that of the smoke distribution pipeline.

Preferably, the number of dampers is a plurality of groups.

The above technical scheme of the utility model has following profitable technological effect: when the automatic control valve works, the air door works and sucks flue gas from the flue gas inlet pipe, then the flue gas enters the reaction chamber, and the sulfur dioxide concentration sensor senses the concentration of the flue gas and controls the automatic control valve to open; the device can adapt to the load change of different flue gas quantities and the change of the concentration of SO2 in the flue gas, and has wide application range; then the desulfurizer is fed into a desulfurization injector through a desulfurizer pipe and is sprayed out by a desulfurizer storage device; the sulfur dioxide concentration sensor transmits a signal to the reaction tower, and the reaction tower selects the number of the opening air doors according to the smoke volume and the sulfur dioxide concentration; the reaction tower can automatically open (close) the air door of the inlet according to the change of the smoke volume, thereby reducing the labor capacity of field workers, realizing centralized control and being convenient to operate and run; then the air door introduces the flue gas and sulfur dioxide gas into the main flue, and after a baffle door of a smoke distributing pipeline on the smoke distributing pipeline is opened, the flue gas and the desulfurizer enter the reaction tower to react; when the amount of the flue gas is large, the baffle doors of the smoke distributing pipelines on the plurality of smoke distributing pipelines are opened simultaneously, and the flue gas and the desulfurizer enter a plurality of reaction towers for reaction; the desulfurization efficiency under different conditions can be met, the desulfurization efficiency is high, and the operation is stable; and the reacted gas enters a smoke exhaust pipeline from the top of the reaction tower, and finally particles in the smoke are filtered by a bag-type dust collector, so that clean gas is exhausted.

Drawings

Fig. 1 is a schematic structural diagram of an adjustable dry and semi-dry desulfurization reaction device provided by the utility model.

Reference numerals: 1. a smoke inlet pipe; 2. a desulfurizer storage device; 3. a desulfurizer pipe; 4. a desulfurization injector; 5. automatically controlling the valve; 6. a reaction chamber; 7. a smoke distributing pipeline; 8. a baffle door of the smoke distributing pipeline; 11. a reaction tower; 13. a smoke exhaust duct; 14. a bag-type dust collector; 15. a damper; 16. and (4) a main flue.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1, the utility model provides an adjustable dry and semi-dry desulfurization reaction device, which comprises a smoke inlet pipe 1, a desulfurizer storage device 2, a desulfurizer pipe 3, a desulfurization injector 4, a reaction chamber 6, a smoke branch pipe 7, a smoke branch pipe damper 8, a reaction tower 11, a smoke exhaust pipe 13, a bag-type dust collector 14, an air door 15 and a main flue 16;

the smoke inlet pipe 1 is arranged on the reaction chamber 6, and the smoke inlet pipe 1 is communicated with the reaction chamber 6; the desulfurization injector 4 is arranged on the reaction chamber 6, the desulfurizer pipe 3 is arranged on the desulfurizer storage device 2 and is communicated with the desulfurization injector 4, and an automatic control valve 5 is arranged at one end of the desulfurizer pipe 3 close to the desulfurization injector 4;

the reaction chamber 6 is communicated with a main flue 16, and a damper 15 is arranged on the main flue 16 and separates the reaction chamber 6 from the main flue 16; the smoke distributing pipeline 7 is arranged at the smoke inlet end of the reaction tower 11 and is communicated with the main smoke channel 16; the smoke distributing pipeline baffle door 8 is arranged on the smoke distributing pipeline 7 and is positioned between the smoke distributing pipeline 7 and the main flue 16;

the smoke exhaust pipeline 13 is arranged at the smoke outlet end of the reaction tower 11, and the bag-type dust collector 14 is arranged on the smoke exhaust pipeline 13 and communicated with the outside.

In an alternative embodiment, the automatic control valve 5 is provided with a sulfur dioxide concentration sensor, and the valve size of the automatic control valve 5 can be controlled according to the sulfur dioxide concentration.

In an alternative embodiment, the reaction tower 11 is connected with a sulfur dioxide concentration sensor through signals, so that the sulfur dioxide concentration signal in the reaction chamber 6 can be transmitted to the reaction tower 11 in time.

In an alternative embodiment, the reaction tower 11 is in control connection with the damper 15, and the opening and closing of the damper 15 are selectively controlled by signals transmitted by the sulfur dioxide sensor, so that the efficiency is improved, and the labor capacity of field workers is reduced.

In an alternative embodiment, the number of reaction towers 11 is multiple, and can adapt to different flue gas volume load changes.

In an alternative embodiment, the number of flue gas separation pipes 7 corresponds to the number of reaction towers 11.

In an alternative embodiment, the number of smoke-dividing duct damper doors 8 corresponds to the number of smoke-dividing ducts 7.

In an optional embodiment, the number of the air doors 15 is multiple groups, and the air doors 15 are opened according to the smoke quantity, so that the efficiency is improved; the air door 15 is closed, and energy is saved.

In the utility model, when in work, the air door 15 works and sucks the flue gas from the flue gas inlet pipe 1, then the flue gas enters the reaction chamber 6, the sulfur dioxide concentration sensor senses the concentration of the flue gas and controls the automatic control valve 5 to open; the device can adapt to the load change of different flue gas quantities and the change of the concentration of SO2 in the flue gas, and has wide application range; then the desulfurizer is fed into a desulfurizer ejector 4 through a desulfurizer pipe 3 by the desulfurizer storage device 2 and is ejected; the sulfur dioxide concentration sensor transmits a signal to the reaction tower 11, and the reaction tower 11 selects the number of the opening air doors 15 according to the smoke volume and the sulfur dioxide concentration; the reaction tower 11 can automatically open (close) the air door of the inlet according to the change of the smoke volume, thereby reducing the labor capacity of field workers, realizing centralized control and being convenient to operate and run; then the air door 15 introduces the flue gas and the sulfur dioxide gas into the main flue 16, and after the smoke distributing pipeline damper 8 on the smoke distributing pipeline 7 is opened, the flue gas and the desulfurizer enter the reaction tower 11 for reaction; when the amount of the flue gas is large, the smoke distributing pipeline baffle doors 8 on the smoke distributing pipelines 7 are opened simultaneously, and the flue gas and the desulfurizer enter a plurality of reaction towers 11 for reaction; the desulfurization efficiency under different conditions can be met, the desulfurization efficiency is high, and the operation is stable; the reacted gas enters a smoke exhaust pipeline 13 from the top of the reaction tower 11, and finally particles in the smoke are filtered by a bag-type dust collector 14, and clean gas is exhausted.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. An adjustable dry and semi-dry desulphurization reaction device is characterized by comprising a smoke inlet pipe (1), a desulfurizer storage device (2), a desulfurizer pipe (3), a desulphurization ejector (4), a reaction chamber (6), a smoke distribution pipeline (7), a smoke distribution pipeline baffle door (8), a reaction tower (11), a smoke discharge pipeline (13), a bag-type dust collector (14), an air door (15) and a main flue (16);

the smoke inlet pipe (1) is arranged on the reaction chamber (6), and the smoke inlet pipe (1) is communicated with the reaction chamber (6); the desulfurization injector (4) is arranged on the reaction chamber (6), the desulfurizer pipe (3) is arranged on the desulfurizer storage device (2) and is communicated with the desulfurization injector (4), and an automatic control valve (5) is arranged at one end of the desulfurizer pipe (3) close to the desulfurization injector (4);

the reaction chamber (6) is communicated with the main flue (16), and the air door (15) is arranged on the main flue (16) and separates the reaction chamber (6) from the main flue (16); the smoke distributing pipeline (7) is arranged at the smoke inlet end of the reaction tower (11) and is communicated with the main smoke channel (16); the smoke distributing pipeline baffle door (8) is arranged on the smoke distributing pipeline (7) and is positioned between the smoke distributing pipeline (7) and the main flue (16);

the smoke exhaust pipeline (13) is arranged at the smoke outlet end of the reaction tower (11), and the bag-type dust collector (14) is arranged on the smoke exhaust pipeline (13) and communicated with the outside.

2. The adjustable dry and semi-dry desulfurization reaction device according to claim 1, wherein the automatic control valve (5) is provided with a sulfur dioxide concentration sensor, and the size of the automatic control valve (5) can be controlled according to the sulfur dioxide concentration.

3. The adjustable dry and semi-dry desulfurization reaction device according to claim 2, wherein the reaction tower (11) is in signal connection with a sulfur dioxide concentration sensor.

4. The adjustable dry and semi-dry desulfurization reaction device according to claim 1, wherein the reaction tower (11) is controllably connected with a damper (15).

5. The adjustable dry and semi-dry desulfurization reaction device according to claim 1, wherein the number of the reaction towers (11) is multiple.

6. The adjustable dry and semi-dry desulfurization reaction device according to claim 5, wherein the number of the smoke distribution pipes (7) is consistent with the number of the reaction towers (11).

7. The adjustable dry and semi-dry desulfurization reaction device according to claim 6, wherein the number of the baffle doors (8) of the smoke distribution pipeline is consistent with the number of the smoke distribution pipeline (7).

8. The adjustable dry and semi-dry desulfurization reaction device according to claim 1, wherein the number of the dampers (15) is plural.