Industrial flue gas desulfurization device

Abstract

The utility model discloses an industrial flue gas desulfurization device which comprises a tower body, a slurry pond, a filler layer and a demister are sequentially arranged in the tower body from bottom to top, a flue gas inlet is arranged above the slurry pond at the lower part of a spray tower, a purified flue gas outlet is arranged at the top of the spray tower, a desulfurization reactant solution is arranged in the slurry pond, and desulfurization reaction particles are filled in the filler layer. And a multi-layer water curtain wall structure is arranged above the flue gas inlet in the tower body. According to the utility model, the plurality of layers of water curtain wall structures are arranged above the flue gas inlet in the tower body, the water curtain wall structures form a flowing water curtain on the inclined isolation wall body, and meanwhile, the flue gas holes are formed in the water curtain channel; flue gas passes through the flue gas holes under the action of pressure, is fully contacted and reacted with a desulfurization reactant solution forming a water curtain in the water curtain channel, and then rises, so that the desulfurization effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial flue gas desulfurization, in particular to an industrial flue gas desulfurization device. Background Art

[0002] my country's coal-based energy structure is one of the main factors affecting my country's atmospheric environmental quality. 90% of sulfur dioxide, 67% of nitrogen oxides, 35% of inhalable particulate matter, and 70% of smoke emissions come from coal combustion. Among them, the most prominent problem is the smoke emission pollution from coal-fired power plants, coal-fired industrial boilers, and coal-fired kilns. Coal-fired smoke pollution control is an important way to control atmospheric environmental pollution, and flue gas desulfurization is the focus of controlling coal-fired smoke pollution. With the development of the economy, people's requirements for environmental protection are getting higher and higher, and the smoke problem of coal-fired industrial boilers is becoming more and more prominent.

[0003] Existing industrial flue gas desulfurization usually uses a spray tower, such as Figure 1 As shown, the spray tower is provided with a slurry pool 1, a spray system 2, a packing layer 3 and a demister 4 from bottom to top, a flue gas inlet 6 is provided above the slurry pool at the bottom of the spray tower, and a purified flue gas outlet 5 is provided at the top of the spray tower. The slurry pool contains a desulfurization reaction agent solution, and the packing layer is filled with desulfurization reaction particles. The spray system is connected to the slurry pool to spray the desulfurization reaction agent solution through a spray pipe to fully mix and react with the flue gas, and combines with the packing layer to achieve the purpose of desulfurization. However, the desulfurization reaction agent solution sprayed through the spray pipe cannot fully contact and mix with the flue gas, and the desulfurization effect is poor. Utility Model Content

[0004] In order to solve the above technical problems, the utility model designs an industrial flue gas desulfurization device.

[0005] The utility model adopts the following technical solutions:

[0006] An industrial flue gas desulfurization device comprises a tower body, wherein a slurry pool, a packing layer and a demister are sequentially arranged in the tower body from bottom to top, a flue gas inlet is arranged above the slurry pool at the lower part of the spray tower, a purified flue gas outlet is arranged at the top of the spray tower, a desulfurization reactant solution is in the slurry pool, and desulfurization reaction particles are filled in the packing layer. A multi-layer water curtain wall structure is arranged above the flue gas inlet in the tower body, and the water curtain wall structure comprises an isolation wall, a liquid inlet pipe, a water curtain channel, a flue gas hole and a liquid outlet pipe. The isolation wall is arranged obliquely, and a liquid inlet pipe and a liquid outlet pipe are respectively arranged at the upper and lower ends of the isolation wall. A plurality of water curtain channels are distributed in parallel between the liquid inlet pipe and the liquid outlet pipe on the isolation wall, and the upper and lower ends of the water curtain channel are respectively connected to the liquid inlet pipe and the liquid outlet pipe. A plurality of flue gas holes are evenly distributed on the water curtain channel, and the flue gas enters above the isolation wall through the smoke holes, and the liquid inlet pipe and the liquid outlet pipe are connected to the slurry pool, and a water pump is installed on the liquid inlet pipe.

[0007] Preferably, the cross-section of the water curtain channel is U-shaped.

[0008] Preferably, an air guide fan is installed at the smoke inlet.

[0009] Preferably, the inclination angle of the isolation wall is 10-40 degrees.

[0010] Preferably, the packing layer is provided with multiple layers, and the multiple packing layers and the multiple water curtain wall structures are staggered and distributed in the tower body up and down.

[0011] Preferably, a drainage port is provided at the bottom of the slurry pool, and a liquid replenishment port is provided above the slurry pool.

[0012] Preferably, the packing layer and the tower body are detachably mounted, so as to facilitate the installation and replacement of the demister.

[0013] Preferably, the demister is detachably mounted from the tower body, so as to facilitate installation and replacement of the demister.

[0014] The beneficial effect of the utility model is as follows: the utility model is provided with a multi-layer water curtain wall structure above the smoke inlet in the tower body, the water curtain wall structure forms a flowing water curtain on the inclined isolation wall, and smoke holes are arranged in the water curtain channel. The smoke passes through the smoke holes under pressure and fully contacts and reacts with the desulfurization reactant solution forming the water curtain in the water curtain channel, and then rises, and the desulfurization effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an existing spray tower;

[0016] Figure 2 It is a structural schematic diagram of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the water curtain wall structure in the utility model;

[0018] Figure 4 yes Figure 3 A cross-sectional view in the AA direction;

[0019] In the figure: 1. slurry pool, 2. spray system, 3. packing layer, 4. demister, 5. purified flue gas outlet, 6. flue gas inlet, 7. water curtain wall structure, 8. water pump, 9. drain outlet, 10. air guide fan, 11. liquid inlet pipe, 12. water curtain channel, 13. flue gas hole, 14. liquid outlet pipe, 15. isolation wall. DETAILED DESCRIPTION

[0020] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0021] Example: Figure 2-4 As shown, an industrial flue gas desulfurization device comprises a tower body, in which a slurry pool 1, a packing layer 3 and a demister 4 are sequentially arranged from bottom to top, a flue gas inlet 6 is arranged above the slurry pool at the lower part of the spray tower, a purified flue gas outlet 5 is arranged at the top of the spray tower, a desulfurization reactant solution is in the slurry pool, and desulfurization reaction particles are filled in the packing layer. A two-layer water curtain wall structure 7 is arranged above the flue gas inlet in the tower body, and the water curtain wall structure comprises an isolation wall 15, a liquid inlet pipe 11, a water curtain channel 12, a flue gas hole 13 and a liquid outlet pipe 14. The isolation wall is inclinedly arranged, and a liquid inlet pipe and a liquid outlet pipe are respectively arranged at the upper and lower ends of the isolation wall. A plurality of water curtain channels are distributed in parallel between the liquid inlet pipe and the liquid outlet pipe on the isolation wall, and the upper and lower ends of the water curtain channel are respectively connected to the liquid inlet pipe and the liquid outlet pipe. A plurality of flue gas holes are evenly distributed on the water curtain channel, and the flue gas enters the top of the isolation wall through the smoke holes, and the liquid inlet pipe and the liquid outlet pipe are connected to the slurry pool, and a water pump 8 is installed on the liquid inlet pipe. The cross section of the water curtain channel is U-shaped.

[0022] The smoke inlet is provided with an air guide fan 10. The inclination angle of the isolation wall is 10-40 degrees.

[0023] The packing layer is provided with multiple layers, and the multiple packing layers and the multiple water curtain wall structure are staggered and distributed in the tower body. A drainage port 9 is provided at the bottom of the slurry pool, and a liquid replenishment port is provided above the slurry pool.

[0024] The packing layer and the tower body can be disassembled and installed, which is convenient for the installation and replacement of the demister. The demister and the tower body can be disassembled and installed, which is convenient for the installation and replacement of the demister.

[0025] The utility model has a multi-layer water curtain wall structure arranged above the smoke inlet in the tower body, the water curtain wall structure forms a flowing water curtain on the inclined isolation wall, and smoke holes are arranged in the water curtain channel. The smoke passes through the smoke holes under pressure and fully contacts and reacts with the desulfurization reactant solution forming the water curtain in the water curtain channel, and then rises, so the desulfurization effect is good.

[0026] The above-described embodiment is only a preferred solution of the present invention and does not limit the present invention in any form. There are other variations and modifications without exceeding the technical solution described in the claims.

Claims

1. An industrial flue gas desulfurization device, comprising a tower body, wherein a slurry pool, a packing layer and a demister are sequentially arranged in the tower body from bottom to top, a flue gas inlet is arranged above the slurry pool at the lower part of the spray tower, and a purified flue gas outlet is arranged at the top of the spray tower, a desulfurization reaction agent solution is in the slurry pool, and desulfurization reaction particles are filled in the packing layer, wherein: A multi-layer water curtain wall structure is arranged above the smoke inlet in the tower body, and the water curtain wall structure includes an isolation wall, a liquid inlet pipe, a water curtain channel, a smoke hole and a liquid outlet pipe. The isolation wall is arranged obliquely, and the liquid inlet pipe and the liquid outlet pipe are respectively arranged at the upper and lower ends of the isolation wall. A plurality of water curtain channels are distributed in parallel between the liquid inlet pipe and the liquid outlet pipe on the isolation wall. The upper and lower ends of the water curtain channel are respectively connected to the liquid inlet pipe and the liquid outlet pipe. A plurality of smoke holes are evenly distributed on the water curtain channel, and the smoke enters above the isolation wall through the smoke holes. The liquid inlet pipe and the liquid outlet pipe are connected to the slurry pool, and a water pump is installed on the liquid inlet pipe.

2. The industrial flue gas desulfurization device according to claim 1 is characterized in that: The cross section of the water curtain channel is U-shaped.

3. The industrial flue gas desulfurization device according to claim 1 is characterized in that: The smoke inlet is equipped with an air guide fan.

4. The industrial flue gas desulfurization device according to claim 1 is characterized in that: The inclination angle of the isolation wall is 10-40 degrees.

5. The industrial flue gas desulfurization device according to claim 1 is characterized in that: The packing layer is provided with multiple layers, and the multiple packing layers and the multiple water curtain wall structures are staggered and distributed in the tower body up and down.

6. The industrial flue gas desulfurization device according to claim 1 is characterized in that: A liquid discharge port is arranged at the bottom of the slurry pool, and a liquid replenishment port is arranged above the slurry pool.

7. The industrial flue gas desulfurization device according to claim 1 is characterized in that: The packing layer and the tower body can be detachably installed.

8. The industrial flue gas desulfurization device according to claim 1 is characterized in that: The demister and the tower body can be detachably installed.

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