Pneumatic mixed-flow type wet flue gas desulfurization equipment

Abstract

The utility model provides pneumatic mixed-flow type wet flue gas desulfurization equipment which comprises a flue gas treatment tower, an upper cover and a spraying mechanism are arranged on the flue gas treatment tower, a first bearing plate and a second bearing plate are arranged in the flue gas treatment tower, a flue gas treatment chamber is arranged between the first bearing plate and the upper cover, and the second bearing plate is arranged in the flue gas treatment chamber. A stirring device and an exhaust mechanism are arranged on the first bearing plate, the exhaust mechanism is fixedly connected with the second bearing plate, and a gas conveying pipe and an air blowing mechanism are arranged on the side, away from the spraying mechanism, of the flue gas treatment tower. According to the pneumatic mixed-flow type wet flue gas desulfurization equipment provided by the utility model, when flue gas reacts with a desulfurizing agent, the stirring device stirs the flue gas and the desulfurizing agent inside, and the air blowing mechanism blows outside air into the flue gas treatment chamber, which is equivalent to secondary stirring of flue gas-desulfurizing agent mixed liquid; the reaction area of the flue gas and the desulfurizing agent is further increased, and the desulfurization reaction rate and the utilization rate of the desulfurizing agent are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas desulfurization equipment, in particular to a pneumatic mixed flow wet flue gas desulfurization equipment. Background Art

[0002] In the process of burning fossil fuels and domestic waste to generate electricity, a large amount of toxic and harmful gases will be produced, and the treatment of sulfur-containing flue gas is an important task in environmental management.

[0003] In the existing flue gas desulfurization equipment, during the desulfurization process, the desulfurizer and the sulfur-containing harmful gases in the flue gas will not react sufficiently. The discharged wastewater often contains a high concentration of desulfurizer, which not only causes waste but also may cause secondary pollution to the environment.

[0004] Therefore, it is necessary to provide a pneumatic mixed flow wet flue gas desulfurization equipment to solve the above technical problems. Utility Model Content

[0005] The utility model provides a pneumatic mixed flow wet flue gas desulfurization device, which solves the problem that the desulfurizer and flue gas in the existing flue gas desulfurization device have insufficient reaction degree during the desulfurization process, resulting in waste and possible secondary pollution to the environment.

[0006] In order to solve the above technical problems, the utility model provides a pneumatic mixed flow wet flue gas desulfurization equipment, including: a flue gas treatment tower, an upper cover and a spray mechanism are arranged on the flue gas treatment tower, a first bearing plate and a second bearing plate are arranged inside the flue gas treatment tower, a flue gas treatment chamber is arranged between the first bearing plate and the upper cover, a stirring device and an exhaust mechanism are arranged on the first bearing plate, the exhaust mechanism is fixedly connected to the second bearing plate, an air supply pipe and a blowing mechanism are arranged on the side of the flue gas treatment tower away from the spray mechanism, a first drain pipe is arranged on the first bearing plate, an electromagnetic valve is arranged on the first drain pipe, the first drain pipe passes through the second bearing plate and is fixedly connected thereto, a wastewater chamber is arranged below the second bearing plate, and a second drain pipe is arranged at the lower part of the wastewater chamber.

[0007] Preferably, the spray mechanism includes a water tank and a fixed seat, the water tank is provided with a water supply pipe, the water supply pipe is provided with a water pump, the two ends of the water supply pipe are respectively fixedly connected to the water tank and the fixed seat, the fixed seat is fixedly connected to the upper cover, and an atomizing nozzle is provided at one end of the water supply pipe close to the fixed seat.

[0008] Preferably, the air supply pipe includes an air intake pipe, a first bracket is arranged on the upper part of the air intake pipe, a filter is arranged on the first bracket, a second bracket is arranged inside the air intake pipe, and a first motor and an exhaust fan are arranged on both sides of the second bracket.

[0009] Preferably, the stirring device comprises a second motor and a rotating shaft, wherein the second motor is located at the lower part of the first supporting plate, the rotating shaft is connected to the output end of the second motor, and a plurality of groups of stirring blades equidistantly distributed are fixedly connected to the rotating shaft.

[0010] Preferably, the exhaust mechanism includes an air collecting pipe, an exhaust pipe and an after-treatment box, the air collecting pipe passes through the first supporting plate and the second supporting plate and is fixedly connected thereto, the exhaust pipe is fixedly connected to the lower part of the air collecting pipe, the after-treatment box is connected to the bottom of the flue gas treatment tower, and the exhaust pipe is communicated with the interior of the after-treatment box.

[0011] Preferably, the blowing mechanism includes a blower and a diversion chamber, the blower is fixedly connected to the outside of the flue gas treatment tower, the diversion chamber is connected to the first supporting plate, the blower is provided with an input pipe, the input pipe passes through the flue gas treatment tower and is connected to the interior of the diversion chamber, an output pipe is provided on the upper part of the diversion chamber, the output pipe extends to the interior of the flue gas treatment chamber, and the part of the output pipe located in the flue gas treatment chamber is provided with multiple air outlets.

[0012] Preferably, a plurality of filter layers are arranged in the wastewater chamber.

[0013] Compared with the related art, the pneumatic mixed flow wet flue gas desulfurization equipment provided by the utility model has the following beneficial effects:

[0014] The utility model provides a pneumatic mixed flow wet flue gas desulfurization equipment. When the flue gas and the desulfurizer react, the stirring device stirs the internal flue gas and the desulfurizer, and the blowing mechanism blows the external air into the flue gas treatment chamber, which is equivalent to secondary stirring of the flue gas-desulfurizer mixed liquid, further increasing the reaction area of ​​the flue gas and the desulfurizer, and improving the desulfurization reaction rate and the utilization rate of the desulfurizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of a preferred embodiment of a pneumatic mixed flow wet flue gas desulfurization device provided by the utility model Figure 1 ;

[0016] Figure 2 A schematic diagram of a preferred embodiment of a pneumatic mixed flow wet flue gas desulfurization device provided by the utility model Figure 2 ;

[0017] Figure 3 This is a schematic diagram of the internal structure of the flue gas treatment tower in the utility model;

[0018] Figure 4 It is a schematic cross-sectional view of the gas transmission pipe in the utility model;

[0019] Figure 5 It is a structural schematic diagram of the blowing mechanism in the utility model.

[0020] Numbers in the figure: 1. flue gas treatment tower, 2. upper cover, 3. spray mechanism, 31. water tank, 32. water pump, 33. water pipeline, 34. atomizing nozzle, 35. fixed seat, 4. gas pipeline, 41. air intake pipeline, 42. first bracket, 43. filter screen, 44. second bracket, 45. first motor, 46. exhaust fan, 5. first bearing plate, 6. flue gas treatment chamber, 7. second bearing plate, 8. second motor, 9. rotating shaft, 10. stirring blade, 11. exhaust mechanism, 111. gas collecting pipe, 112. exhaust pipe, 113. post-processing box, 12. blowing mechanism, 121. blower, 122. input pipe, 123. diversion chamber, 124. output pipe, 125. air outlet, 13. wastewater chamber, 14. first drain pipe, 15. solenoid valve, 16. filter layer, 17. second drain pipe. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0022] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 ,in, Figure 1 A schematic diagram of a preferred embodiment of a pneumatic mixed flow wet flue gas desulfurization device provided by the utility model Figure 1 ;

[0023] Figure 2 A schematic diagram of a preferred embodiment of a pneumatic mixed flow wet flue gas desulfurization device provided by the utility model Figure 2 ;

[0024] Figure 3 This is a schematic diagram of the internal structure of the flue gas treatment tower in the utility model;

[0025] Figure 4 It is a schematic cross-sectional view of the gas transmission pipe in the utility model;

[0026] Figure 5 It is a structural schematic diagram of the blowing mechanism in the utility model.

[0027] A pneumatic mixed flow wet flue gas desulfurization equipment includes: a flue gas treatment tower 1, on which an upper cover 2 and a spray mechanism 3 are provided, a first bearing plate 5 and a second bearing plate 7 are provided inside the flue gas treatment tower 1, a flue gas treatment chamber 6 is provided between the first bearing plate 5 and the upper cover 2, a stirring device and an exhaust mechanism 11 are provided on the first bearing plate 5, and the exhaust mechanism 11 is fixedly connected to the second bearing plate 7, an air supply pipe 4 and a blowing mechanism 12 are provided on the side of the flue gas treatment tower 1 away from the spray mechanism 3, a first drain pipe 14 is provided on the first bearing plate 5, a solenoid valve 15 is provided on the first drain pipe 14, the first drain pipe 14 passes through the second bearing plate 7 and is fixedly connected thereto, a wastewater chamber 13 is provided below the second bearing plate 7, and a second drain pipe 17 is provided at the lower part of the wastewater chamber 13.

[0028] The flue gas is input from the gas pipeline 4, and then the spray mechanism 3 is opened synchronously to spray the desulfurizer to the flue gas in the flue gas treatment chamber 6, and the stirring device is started to stir the internal flue gas-desulfurizer mixture. In this process, the blowing mechanism 12 blows the outside air into the flue gas treatment chamber 6 to increase the reaction area between the flue gas and the desulfurizer, thereby improving the reaction rate. The particulate impurities in the flue gas are precipitated under the action of centrifugal force, and the purified gas floats up and is discharged by the exhaust mechanism 11. Finally, the solenoid valve 15 is opened to discharge the waste water after the reaction through the first drain pipe 14 and the second drain pipe 17.

[0029] The spray mechanism 3 includes a water tank 31 and a fixed seat 35. A water pipeline 33 is provided on the water tank 31. A water pump 32 is provided on the water pipeline 33. Both ends of the water pipeline 33 are fixedly connected to the water tank 31 and the fixed seat 35 respectively. The fixed seat 35 is fixedly connected to the upper cover 2. An atomizing nozzle 36 is provided at one end of the water pipeline 33 close to the fixed seat 35.

[0030] The atomizing nozzle 36 atomizes the sprayed desulfurizing agent, increases the reaction area between the flue gas and the desulfurizing agent, accelerates the speed of the desulfurization reaction, and improves the purification efficiency.

[0031] The air supply pipe 4 includes an air intake pipe 41 , a first bracket 42 is provided on the upper part of the air intake pipe 41 , a filter screen 43 is provided on the first bracket 42 , a second bracket 44 is provided inside the air intake pipe 41 , a first motor 45 and an exhaust fan 46 are provided on both sides of the second bracket 44 .

[0032] The filter 43 is used for the first filtration of the smoke before it enters the smoke treatment chamber 6 to intercept a portion of particulate matter. The filter 43 may become clogged after long-term use. The first bracket 42 facilitates the removal of the filter 43 and its cleaning; the exhaust fan 46 quickly draws smoke into the air intake duct 41.

[0033] The stirring device includes a second motor 8 and a rotating shaft 9. The second motor 8 is located at the lower part of the first supporting plate 5. The rotating shaft 9 is connected to the output end of the second motor 8. A plurality of stirring blades 10 are fixedly connected to the rotating shaft 9 and are distributed at equal distances.

[0034] The second motor 8 is started to drive the rotating shaft 9 and the stirring blade 10 to rotate, so as to stir the flue gas-desulfurization agent mixture.

[0035] The exhaust mechanism 11 includes an air collecting pipe 111, an exhaust pipe 112 and a post-treatment box 113. The air collecting pipe 111 passes through the first supporting plate 5 and the second supporting plate 7 and is fixedly connected thereto. The exhaust pipe 112 is fixedly connected to the lower part of the air collecting pipe 111. The post-treatment box 113 is connected to the bottom of the flue gas treatment tower 1. The exhaust pipe 112 is communicated with the interior of the post-treatment box 113.

[0036] The flue gas after reacting with the desulfurizer enters from the gas collecting pipe 111 , and the residual harmful gas is further absorbed when passing through the post-treatment box 113 , and finally discharged to the outside from the end of the exhaust pipe 112 .

[0037] The blowing mechanism 12 includes a blower 121 and a diversion chamber 123. The blower 121 is fixedly connected to the outside of the flue gas treatment tower 1, and the diversion chamber 123 is connected to the first supporting plate 5. The blower 121 is provided with an input pipe 122. The input pipe 122 passes through the flue gas treatment tower 1 and is connected to the interior of the diversion chamber 123. An output pipe 124 is provided on the upper part of the diversion chamber 123. The output pipe 124 extends to the interior of the flue gas treatment chamber 6. The part of the output pipe 124 located in the flue gas treatment chamber 6 is provided with multiple air outlets 125.

[0038] The blower 121 blows external air into the diversion chamber 123 through the input pipe 122, and then enters the flue gas treatment chamber 6 from the two output pipes 124 connected to the upper part thereof. When the air is ejected from the air outlet 125, it is equivalent to stirring the flue gas and the desulfurizer, thereby increasing the reaction area of ​​the flue gas and the desulfurizer.

[0039] A plurality of filter layers 16 are disposed in the wastewater chamber 13 .

[0040] The filter layer 16 can be made of materials such as ceramics and activated carbon, and can be filtered multiple times to reduce the pollution of the waste liquid.

[0041] The working principle of a pneumatic mixed flow wet flue gas desulfurization equipment provided by the utility model is as follows:

[0042] The flue gas is input from the gas pipeline 4, and then the spray mechanism 3 is opened synchronously to spray the desulfurizer to the flue gas in the flue gas treatment chamber 6, and the stirring device is started to stir the internal flue gas-desulfurizer mixture. In this process, the blowing mechanism 12 blows the outside air into the flue gas treatment chamber 6 to increase the reaction area between the flue gas and the desulfurizer, thereby improving the reaction rate. The particulate impurities in the flue gas are precipitated under the action of centrifugal force, and the purified gas floats up and is discharged by the exhaust mechanism 11. Finally, the solenoid valve 15 is opened to discharge the waste water after the reaction through the first drain pipe 14 and the second drain pipe 17.

[0043] Compared with the related art, the pneumatic mixed flow wet flue gas desulfurization equipment provided by the utility model has the following beneficial effects:

[0044] When the flue gas and the desulfurizer react, the stirring device stirs the internal flue gas and the desulfurizer, and the blowing mechanism 12 blows the outside air into the flue gas treatment chamber 6, which is equivalent to secondary stirring of the flue gas-desulfurizer mixture, further increasing the reaction area of ​​the flue gas and the desulfurizer, and improving the desulfurization reaction rate and the utilization rate of the desulfurizer.

[0045] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A pneumatic mixed flow wet flue gas desulfurization equipment, characterized in that: include: A flue gas treatment tower, wherein an upper cover and a spray mechanism are arranged on the flue gas treatment tower, a first supporting plate and a second supporting plate are arranged inside the flue gas treatment tower, a flue gas treatment chamber is arranged between the first supporting plate and the upper cover, a stirring device and an exhaust mechanism are arranged on the first supporting plate, the exhaust mechanism is fixedly connected to the second supporting plate, an air supply pipe and a blowing mechanism are arranged on the side of the flue gas treatment tower away from the spray mechanism, a first drain pipe is arranged on the first supporting plate, an electromagnetic valve is arranged on the first drain pipe, the first drain pipe passes through the second supporting plate and is fixedly connected thereto, a wastewater chamber is arranged below the second supporting plate, and a second drain pipe is arranged at the lower part of the wastewater chamber.

2. The pneumatic mixed flow wet flue gas desulfurization equipment according to claim 1 is characterized in that: The spray mechanism includes a water tank and a fixed seat, the water tank is provided with a water pipeline, the water pipeline is provided with a water pump, the two ends of the water pipeline are respectively fixedly connected to the water tank and the fixed seat, the fixed seat is fixedly connected to the upper cover, and an atomizing nozzle is provided at one end of the water pipeline close to the fixed seat.

3. The pneumatic mixed flow wet flue gas desulfurization equipment according to claim 1 is characterized in that: The air delivery pipe includes an air intake pipe, a first bracket is arranged on the upper part of the air intake pipe, a filter is arranged on the first bracket, a second bracket is arranged inside the air intake pipe, and a first motor and an exhaust fan are arranged on both sides of the second bracket.

4. The pneumatic mixed flow wet flue gas desulfurization equipment according to claim 1, characterized in that: The stirring device comprises a second motor and a rotating shaft, wherein the second motor is located at the lower part of the first supporting plate, the rotating shaft is connected to the output end of the second motor, and a plurality of groups of stirring blades distributed at equal distances are fixedly connected to the rotating shaft.

5. The pneumatic mixed flow wet flue gas desulfurization equipment according to claim 1, characterized in that: The exhaust mechanism includes an air collecting pipe, an exhaust pipe and a post-treatment box. The air collecting pipe passes through the first supporting plate and the second supporting plate and is fixedly connected thereto. The exhaust pipe is fixedly connected to the lower part of the air collecting pipe. The post-treatment box is connected to the bottom of the flue gas treatment tower. The exhaust pipe is communicated with the interior of the post-treatment box.

6. The pneumatic mixed flow wet flue gas desulfurization equipment according to claim 1, characterized in that: The blowing mechanism includes a blower and a diversion chamber, wherein the blower is fixedly connected to the outside of the flue gas treatment tower, and the diversion chamber is connected to the first supporting plate. The blower is provided with an input pipe, which passes through the flue gas treatment tower and is connected to the interior of the diversion chamber. An output pipe is provided on the upper part of the diversion chamber, and the output pipe extends to the interior of the flue gas treatment chamber. The part of the output pipe located in the flue gas treatment chamber is provided with multiple air outlets.

7. The pneumatic mixed flow wet flue gas desulfurization equipment according to claim 1, characterized in that: A plurality of filter layers are arranged in the wastewater chamber.

Images