Flue gas purification device for environmental protection

Abstract

The utility model belongs to the technical field of flue gas purification, and discloses a flue gas purification device for environmental protection, which comprises a desulfurization box and a water mist box, the desulfurization box is positioned in the water mist box, the desulfurization box is connected with a circulating pump through a pipeline, and the circulating pump enables a desulfurizer in the desulfurization box to be always in a flowing state. Therefore, the flue gas can fully react with a desulfurizing agent, so that the desulfurization effect of the flue gas is improved; the water mist chamber is used for spraying water mist and can effectively remove large-particle suspended solids in the flue gas, a plurality of inclined plates are distributed in the gas outlet channel in a staggered mode, the inclined plates are made of activated carbon, the flue gas can make full contact with the inclined plates, and therefore the adsorption and purification effect is further improved; the flue gas treatment device solves the problems of low filtering effect and non-ideal desulfurization effect of the flue gas treatment device in the prior art, and is suitable for flue gas treatment and purification.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas purification, in particular to a flue gas purification device for environmental protection. Background Art

[0002] Flue gas treatment equipment is used to remove toxic and harmful substances, dust, etc. contained in flue gas. Toxic and harmful substances include sulfur dioxide, nitrogen oxides, etc. Dust refers to large particles of suspended matter. However, in the process of purifying flue gas with existing technologies, the flue gas enters too quickly, resulting in a short contact time between the flue gas and the filter, and the filtration effect is not obvious. In addition, the flue gas is highly concentrated during the treatment process, and cannot fully contact with the desulfurizer, resulting in unsatisfactory desulfurization effect. Utility Model Content

[0003] The utility model aims to provide a flue gas purification device for environmental protection, so as to solve the problems of low filtering effect and unsatisfactory desulfurization effect of the flue gas treatment device in the prior art.

[0004] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0005] The technical solution provided by the utility model is: a flue gas purification device for environmental protection, including a desulfurization box and a water mist box, the desulfurization box is arranged inside the water mist box, the desulfurization box is used to accommodate limestone slurry, the water mist box is used to accommodate water mist, the outside of the water mist box is connected to a circulation pump, the circulation pump is connected to a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe and the liquid outlet pipe connect the desulfurization box with the circulation pump, the desulfurization box is connected to an air inlet pipe, the air inlet pipe passes through the water mist box ... The top of the sulfur box is connected to an air outlet pipe, and the top of the air outlet pipe is open. The top of the water mist box is connected to the control handle through a threaded connection, and the bottom of the control handle is connected to a closing plug. The closing plug is a frustum-shaped structure with a small bottom and a large top. The closing plug and the air outlet pipe are located in the same vertical direction. The water mist box is connected to a water inlet pipe. Several spray pipes are arranged in a row inside the water mist box, and several of the spray pipes are connected to the water inlet pipe. An air outlet channel is provided on the top of the water mist box, and an arc-shaped blocking block is connected to the top of the air outlet channel.

[0006] Preferably, a flow meter is provided on the air inlet pipe, and the flow meter is used to monitor the internal gas flow.

[0007] Preferably, a one-way valve is provided in the air intake pipe.

[0008] Preferably, the outsides of the water mist box and the desulfurization box are both connected with detachable closing plates.

[0009] Preferably, an arc-shaped blocking block is connected to the top of the air outlet channel.

[0010] The principle of the technical solution: the air inlet pipe is used to allow the flue gas that needs to be purified to pass through. A one-way valve is arranged in the air inlet pipe to prevent gas backflow and slurry from flowing into the air inlet pipe. The circulating pump is used to extract and remove limestone slurry, so that the limestone slurry in the desulfurization box is always in a flowing state. The horizontal height of the closing plug can be adjusted by turning the control handle, thereby controlling the outlet area of ​​the air outlet pipe, thereby playing a role in flow regulation. The water inlet pipe is used to input liquid and atomize the liquid and spray it out. The atomized liquid absorbs suspended particles in the smoke and causes the suspended particles to be deposited in the water mist box. The staggered arrangement of inclined plates in the air outlet channel can limit the exhaust speed of the flue gas, so that the inclined plates made of activated carbon are in full contact with the flue gas, further improving the filtration effect.

[0011] The beneficial effects of the technical solution are: the limestone slurry in the desulfurization box of the present invention is always in a flowing state, so that the flue gas and the limestone slurry can fully contact and react, thereby improving the flue gas desulfurization effect, the outlet pipe on the top of the desulfurization box can adjust the cross-sectional area of ​​the gas outlet by controlling the handle, and the cross-sectional area at the outlet pipe can be reduced according to the situation, thereby reducing the flue gas flow, increasing the contact time between the limestone slurry and the flue gas, and further improving the desulfurization effect, water mist is sprayed in the water mist box, and the water mist combines with the large particles of suspended matter in the flue gas, and is deposited at the bottom of the water mist box to remove the suspended particles in the flue gas, and the inclined plates made of activated carbon are staggered in the outlet channel, which can increase the contact time between the flue gas and the inclined plates, so that the flue gas is fully in contact with the inclined plates, thereby improving its filtering and purification effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 2 This is the internal structure diagram of the utility model;

[0014] Figure 3 It is a cross-sectional view of the utility model;

[0015] The names of the corresponding marks in the accompanying drawings are: desulfurization box 1, water mist box 2, circulation pump 3, air inlet pipe 4, air outlet pipe 5, water inlet pipe 6, air outlet channel 7, control handle 21, closing plug 22, spray pipe 23, closing plate 24, liquid inlet pipe 31, liquid outlet pipe 32, flow meter 41, one-way valve 42, inclined plate 71, arc-shaped blocking block 72. DETAILED DESCRIPTION

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:

[0017] like Figure 1-Figure 3As shown, a flue gas purification device for environmental protection includes a desulfurization box 1 and a water mist box 2. The desulfurization box 1 is located at the center of the water mist box 2. The interior of the desulfurization box 1 is used to contain limestone slurry, and the interior of the water mist box 2 is used to contain liquid water mist. A circulation pump 3 is connected to the front of the outer side of the water mist box 2. The two sides of the circulation pump 3 are respectively connected to the liquid inlet pipe 31 and the liquid outlet pipe 32. The desulfurization box 1 and the circulation pump 3 are also connected by the liquid inlet pipe 31 and the liquid outlet pipe 32. The right side of the desulfurization box 1 is connected to an air inlet pipe 4. The air inlet pipe 4 is used to introduce the flue gas to be purified. A one-way valve 42 is provided inside the air inlet pipe 4. A flow meter 41 for monitoring the internal gas flow is provided on the outside of the air inlet pipe 4. An air outlet pipe 5 is provided on the top of the desulfurization box 1. The top of the air outlet pipe 5 is open, and a control handle 21 is threadedly connected to the center of the top of the water mist box 2. The control handle 21 passes through the water mist box 2, and the bottom of the control handle 21 is connected to the closing plug 22. The closing plug 22 is a truncated cone-shaped structure with a larger top and a smaller bottom. Several spray pipes 23 are arranged in an array inside the water mist box 2, and a water inlet pipe 6 is connected to the outside of the water mist box 2. The water inlet pipe 6 is used to introduce liquid. Several spray pipes 23 are connected to the water mist pipe. An air outlet channel 7 is connected to the top of the water mist box 2. Several inclined plates 71 are staggered inside the air outlet channel 7. The inclined plates 71 are all made of activated carbon. An arc-shaped blocking block 72 is connected to the top of the air outlet channel 7, and a removable closing plate 24 is provided on the left side of the desulfurization box 1 and the water mist box 2.

[0018] The specific implementation process is as follows: first, turn on the switch at one end of the circulation pump 3 to inject limestone slurry into the desulfurization box 1, and then the flue gas enters the desulfurization box 1 from the air inlet pipe 4. During this process, the flow meter 41 can display the gas flow inside the air inlet pipe 4. After the flue gas purification starts, turn on the switch at the other end of the circulation pump 3 to extract the limestone slurry in the desulfurization box 1, so that the limestone slurry in the desulfurization box 1 is in a flowing state. Some of the reacted slurry can be discharged from the liquid outlet pipe 32, thereby improving the desulfurization effect. The flue gas and the desulfurizer fully react. By turning the control handle 21, the control plug 22 is extended into the air outlet pipe 5. The distance within is controlled, thereby controlling the cross-sectional area at the air outlet pipe 5, reducing the outflow speed of the flue gas, increasing the reaction time between the slurry and the flue gas, and improving the desulfurization effect. The input liquid is input from the water inlet pipe 6, atomized and sprayed from the spray pipe 23, and water mist is formed in the water mist box 2. The water mist is mixed with the flue gas, and the water mist is combined with the large particle suspended matter in the flue gas, and the mass becomes larger, so that it is deposited in the water mist box 2. After purification, the flue gas is discharged from the air outlet channel 7. Several inclined plates 71 are staggered in the air outlet channel 7, so that the flue gas is fully in contact with the inclined plates 71. The inclined plates 71 are composed of activated carbon, so that they can fully adsorb particles and purify the flue gas.

[0019] The above description is merely an embodiment of the present invention, and the commonly known specific technical solutions or features in the solution are not described in detail here. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several variations and improvements can be made, which should also be considered as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection claimed in this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A flue gas purification device for environmental protection, characterized in that: The invention comprises a desulfurization box (1) and a water mist box (2), wherein the desulfurization box (1) is arranged inside the water mist box (2), the desulfurization box (1) is used to contain limestone slurry, and the water mist box (2) is used to contain water mist. The outside of the water mist box (2) is connected to a circulation pump (3), and the circulation pump (3) is connected to a liquid inlet pipe (31) and a liquid outlet pipe (32). The liquid inlet pipe (31) and the liquid outlet pipe (32) connect the desulfurization box (1) with the circulation pump (3). The desulfurization box (1) is connected to an air inlet pipe (4), and the air inlet pipe (4) passes through the water mist box (2). The top of the desulfurization box (1) is connected to an air outlet pipe (5), and the top of the air outlet pipe (5) is open. The water mist box ( 2) The top is connected to a control handle (21) by a thread, and the bottom of the control handle (21) is connected to a closing plug (22), and the closing plug (22) is a truncated cone structure with a small bottom and a large top. The closing plug (22) and the air outlet pipe (5) are located in the same vertical direction, and the water mist box (2) is connected to a water inlet pipe (6). A plurality of spray pipes (23) are arranged in a row inside the water mist box (2), and the plurality of spray pipes (23) are connected to the water inlet pipe (6). The top of the water mist box (2) is connected to an air outlet channel (7), and a plurality of inclined plates (71) are arranged in the air outlet channel (7). The inclined plates (71) are made of activated carbon, and the plurality of inclined plates (71) are staggered.

2. The flue gas purification device for environmental protection according to claim 1, characterized in that: The air inlet pipe (4) is provided with a flow meter (41), and the flow meter (41) is used to monitor the internal gas flow.

3. The flue gas purification device for environmental protection according to claim 1, characterized in that: A one-way valve (42) is provided in the air inlet pipe (4).

4. The flue gas purification device for environmental protection according to claim 1, characterized in that: The outer sides of the water mist box (2) and the desulfurization box (1) are both connected with detachable closing plates (24).

5. The flue gas purification device for environmental protection according to claim 1, characterized in that: The top of the air outlet channel (7) is connected to an arc-shaped blocking block (72).

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