Flue gas purification device

Abstract

The utility model relates to a flue gas purification device. The flue gas purification device comprises a flue gas washing tower body; the conical storage tank is connected to the bottom of the flue gas washing tower body and is used for receiving water falling from the flue gas washing tower body and particulate matters mixed in the water; and the spiral dehydrator is connected to the bottom of the conical storage tank and is used for performing dehydration treatment on the particulate matters deposited at the bottom of the conical storage tank and discharging the particulate matters. According to the flue gas purification device disclosed by the invention, by utilizing the conical storage tank arranged at the bottom of the flue gas washing tower body, particulate matters mixed in water are gathered at the bottom of the conical storage tank, are dehydrated by the spiral dehydrator connected to the bottom of the conical storage tank and are discharged; and the automatic cleaning of the precipitated sludge in the wastewater generated by flue gas purification is realized. The flue gas purification device is simple in structure and easy to implement.

Description

Technical Field

[0001] The invention relates to the technical field of environmental protection and dust removal, and in particular to a flue gas purification device. Background Art

[0002] The metallurgical industry generates a large amount of dusty flue gas during the production process, which will cause great pollution to the environment, especially the air and water quality. Since dusty flue gas has the problems of high temperature, high humidity and easy compaction, wet dust removal is often used for flue gas treatment. However, the wastewater generated by wet dust removal contains a large number of material particles, which causes poor fluidity of the wastewater and makes it difficult to discharge and transport and transfer. It often occurs that the sludge settled inside the dust removal equipment cannot be discharged, and a compacted layer condenses on the inner wall and internal structure of the dust removal equipment. In addition, after the sludge settled in the wastewater is discharged from the dust removal equipment, it will also accumulate and compact in the water seal device, drainage ditch and pool at the drain outlet, which is difficult to clean mechanically and automatically. It requires a lot of manpower and time to clean it, and affects production. Summary of the invention

[0003] In view of this, the present disclosure provides a flue gas purification device to achieve automatic cleaning of precipitated sludge in wastewater generated by flue gas purification.

[0004] The technical solution of the present disclosure is achieved as follows:

[0005] A flue gas purification device, comprising:

[0006] Flue gas scrubber body;

[0007] A conical storage tank, the conical storage tank is connected to the bottom of the flue gas scrubber body and is used to receive water falling from the flue gas scrubber body and particulate matter mixed in the water;

[0008] A spiral dehydrator is connected to the bottom of the conical storage tank and is used for dehydrating and discharging the particulate matter deposited at the bottom of the conical storage tank.

[0009] In an optional embodiment, the flue gas purification device further includes:

[0010] A flue gas intake duct passes through the side wall of the flue gas scrubbing tower body, extends from the outside of the flue gas scrubbing tower body to the conical storage tank, and the flue gas outlet of the flue gas intake duct in the flue gas purification device is located below the horizontal plane in the conical storage tank.

[0011] In an optional embodiment, the flue gas purification device further includes:

[0012] A water storage tank, the water storage tank being located outside the flue gas scrubber body and the conical storage tank;

[0013] Wherein, an overflow port is provided above the conical storage tank, and the overflow port is connected to the water storage tank. When the water level in the conical storage tank reaches the overflow port, the water in the conical storage tank flows into the water storage tank through the overflow port.

[0014] In an optional embodiment, the flue gas purification device further includes:

[0015] A spray device, wherein the spray device is installed in the flue gas scrubber body;

[0016] A circulating water pump is installed on the water storage tank and connected to the spray device, and is used to pump water in the water storage tank to the spray device, so that the water in the water storage tank is sprayed out from the spray device.

[0017] In an optional embodiment, the flue gas purification device further includes:

[0018] A water supply device is connected to the spray device and is used to supply water to the spray device.

[0019] In an optional embodiment, the flue gas purification device further includes:

[0020] A smoke adsorption device, wherein the smoke adsorption device is installed in the smoke scrubbing tower body;

[0021] Wherein, the water sprayed by the spraying device enters the conical storage tank after passing through the smoke adsorption device.

[0022] In an optional embodiment, the smoke adsorption device further includes:

[0023] A sieve plate, wherein the sieve plate is installed in the flue gas scrubber body;

[0024] Filling balls are laid on the sieve plate.

[0025] In an optional embodiment, the smoke adsorption device further includes:

[0026] A stirring device is installed in the flue gas scrubbing tower body and is located above the packing balls, and is used to stir the packing balls.

[0027] In an optional embodiment, the stirring device comprises:

[0028] A stirrer, the stirrer is installed above the filler balls;

[0029] A stirring rake, the stirring rake is connected to the output shaft of the stirrer, the stirring rake rotates above the filler balls as the output shaft of the stirrer rotates, the stirring rake comprises a plurality of stirring teeth arranged at unequal intervals, the stirring teeth are inserted between the filler balls and stir the filler balls as the stirring rake rotates;

[0030] Wherein, along the extension direction of the stirring beam, the stirring teeth are arranged at non-equidistant intervals.

[0031] In an optional embodiment, the flue gas purification device further includes:

[0032] A tube bundle demister is installed in the flue gas scrubbing tower body and is located below the top air outlet of the flue gas scrubbing tower body.

[0033] It can be seen from the above scheme that the flue gas purification device disclosed herein utilizes the conical storage tank provided at the bottom of the flue gas scrubber body to gather the particulate matter mixed in the water at the bottom of the conical storage tank, and discharges the particulate matter through dehydration treatment by a spiral dehydrator connected to the bottom of the conical storage tank, thereby realizing automatic cleaning of the precipitated sludge in the wastewater generated by flue gas purification. The flue gas purification device disclosed herein has a simple structure and is easy to implement. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a schematic structural diagram of a flue gas purification device according to an exemplary embodiment;

[0035] Figure 2 is an enlarged schematic diagram of the connection structure between the conical storage tank, the spiral dehydrator and the water storage tank shown in the flue gas purification device according to the embodiment of the present disclosure;

[0036] Figure 3 is a schematic structural diagram of a spray device and a smoke adsorption device of a smoke purification device according to an embodiment of the present disclosure;

[0037] Figure 4 is a structural schematic diagram of a stirring device part of a flue gas purification device according to an embodiment of the present disclosure;

[0038] Figure 5 It is a schematic structural diagram of the stirring rake part of the flue gas purification device according to an embodiment of the present disclosure.

[0039] In the accompanying drawings, the names of the components represented by the reference numerals are as follows:

[0040] 1. Flue gas scrubber body

[0041] 2. Conical storage tank

[0042] 201. Overflow

[0043] 3. Spiral dehydrator

[0044] 4. Flue gas intake duct

[0045] 5. Water storage tank

[0046] 6. Three-way water pipe

[0047] 701, First Valve

[0048] 702, Second Valve

[0049] 8. Spraying device

[0050] 9. Circulating water pump

[0051] 10. Water supply device

[0052] 11. Smoke and dust adsorption device

[0053] 111. Screen plate

[0054] 112. Filling Balls

[0055] 12. Stirring device

[0056] 121. Mixer

[0057] 122. Mixing rake

[0058] 123. Stirring teeth

[0059] 13. Tube bundle demister

[0060] 14. Drainage pump DETAILED DESCRIPTION

[0061] In order to make the objectives, technical solutions and advantages of the present disclosure more clearly understood, the present disclosure is further described in detail below with reference to the accompanying drawings and examples.

[0062] Figure 1 FIG. 1 is a schematic diagram of the structure of a flue gas purification device according to an exemplary embodiment. Figure 1 As shown, the flue gas purification device mainly includes a flue gas washing tower body 1, a conical storage tank 2 and a spiral dehydrator 3. Among them, the conical storage tank 2 is connected to the bottom of the flue gas washing tower body 1, and the conical storage tank 2 is used to receive the water falling from the flue gas washing tower body 1 and the particulate matter mixed in the water. In the exemplary embodiment, the particulate matter mixed in the water forms sludge precipitated in the water wastewater. The spiral dehydrator 3 can also be called a spiral extrusion dehydrator. The spiral dehydrator 3 is connected to the bottom of the conical storage tank 2 and is used to dehydrate and discharge the particulate matter deposited at the bottom of the conical storage tank 2.

[0063] In the exemplary embodiment, the conical storage tank 2 has a structure that is larger at the top and smaller at the bottom, and the cross-sectional size (or area) of the portion where the conical storage tank 2 is connected to the flue gas scrubber body 1 is larger than the cross-sectional size (or area) of the bottom opening of the conical storage tank 2. In the exemplary embodiment, the conical storage tank 2 may be conical or pyramidal. In the exemplary embodiment, the conical storage tank 2 may match the shape of the flue gas scrubber body 1. For example, if the flue gas scrubber body 1 is cylindrical (or cylindrical), the conical storage tank 2 may be conical. If the flue gas scrubber body 1 is a square prism (or square prism-shaped cylinder), the conical storage tank 2 may be a square pyramid.

[0064] Since the inner side wall of the conical storage tank 2 is inclined downward, the particulate matter mixed in the water falling from the flue gas scrubber body 1 will slide down along the inner side wall of the conical storage tank 2 to the bottom of the conical storage tank 2 under the action of gravity, and the precipitated particulate matter in the wastewater will be discharged through the dehydration treatment of the spiral dehydrator 3 connected to the bottom of the conical storage tank 2. In the flue gas purification device of the embodiment of the present disclosure, the automatic cleaning of the precipitated sludge in the wastewater generated by the flue gas purification is realized through the cooperation of the conical storage tank 2 and the spiral dehydrator 3.

[0065] like Figure 1 As shown, in the exemplary embodiment, the flue gas purification device further includes a flue gas intake pipe 4. The flue gas intake pipe 4 penetrates the side wall of the flue gas scrubber body 1, extends from the outside of the flue gas scrubber body 1 to the conical storage tank 2, and the flue gas outlet of the flue gas intake pipe 4 in the flue gas purification device is located below the horizontal plane in the conical storage tank 2. In this way, the flue gas entering the flue gas purification device from the flue gas intake pipe 4 first contacts the water in the conical storage tank 2, and the larger particles of dust in the flue gas will fall into the water. In the conical storage tank 2, the initial purification of the flue gas is achieved, and then the smaller particles of dust in the flue gas will rise with the flue gas and enter the inside of the flue gas scrubber body 1 for further purification. It can be seen that the flue gas purification device of the embodiment of the present disclosure utilizes the structure that the flue gas outlet of the flue gas intake pipe 4 in the flue gas purification device is located below the horizontal plane in the conical storage tank 2, so as to achieve the initial purification of the flue gas, and the water in the conical storage tank 2 also plays a role in the initial purification of the flue gas.

[0066] like Figure 1 As shown, in the exemplary embodiment, the flue gas purification device further includes a water tank 5. The water tank 5 is located outside the flue gas scrubber body 1 and the conical storage tank 2. An overflow port 201 is provided above the conical storage tank 2, and the overflow port 201 is connected to the water tank 5. When the water level in the conical storage tank 2 reaches the overflow port 201, the water in the conical storage tank 2 flows into the water tank 5 through the overflow port 201 ( Figure 1In the illustrated embodiment, the dotted line in the conical storage tank 2 represents the horizontal plane). It can be seen that the opening position of the overflow port 201 determines the highest height of the horizontal plane in the conical storage tank 2. Based on this, in the exemplary embodiment, the position of the flue gas outlet of the flue gas intake duct 4 in the flue gas purification device is lower than the overflow port 201, thereby ensuring that the basic condition that the flue gas in the flue gas intake duct 4 can first contact with the water in the conical storage tank 2 in the flue gas purification device is met.

[0067] In order to facilitate the control of the water volume in the conical storage tank 2 and the maintenance of the flue gas purification device, the conical storage tank 2, the spiral dehydrator 3 and the water storage tank 5 can be connected and controlled through water pipes and valve connectors. Figure 2 is an enlarged schematic diagram of the connection structure between the conical storage tank, the spiral dehydrator and the water storage tank according to the flue gas purification device of the embodiment of the present disclosure, wherein: Figure 2 yes Figure 1 The enlarged view of the corresponding part in Figure 2 As shown, in the schematic embodiment, the conical storage tank 2, the spiral dehydrator 3 and the water tank 5 can be connected by a three-way water pipe 6. When the spiral dehydrator 3 is used to dehydrate the particulate matter deposited at the bottom of the conical storage tank 2, in order to prevent water and particulate matter from entering the water tank 5 from the bottom of the conical storage tank 2, the side where the three-way water pipe 6 is connected to the water tank 5 can be blocked, so that the mixture in the conical storage tank 2 enters the conical storage tank 2 from the side where the three-way water pipe 6 is connected to the spiral dehydrator 3. When the flue gas purification device is inspected and repaired, in order to facilitate the discharge of water in the conical storage tank 2, the side where the three-way water pipe 6 is connected to the conical storage tank 2 can be blocked, so that the water in the conical storage tank 2 can be quickly discharged from the side where the three-way water pipe 6 is connected to the storage tank 2. Based on this, Figure 2 As shown, in the exemplary embodiment, the flue gas purification device may further include a first valve 701 and a second valve 702, wherein the first valve 701 is installed on the side where the three-way water pipe 6 is connected to the spiral dehydrator 3, and the first valve 701 is used to control the opening and closing of the pipeline between the conical storage tank 2 and the spiral dehydrator 3, and the second valve 702 is installed on the side where the three-way water pipe 6 is connected to the water tank 5, and the second valve 702 is used to control the opening and closing of the pipeline between the conical storage tank 2 and the water tank 5.

[0068] like Figure 2As shown, in order to facilitate the particulate matter (such as sludge) deposited at the bottom of the conical storage tank 2 to flow into the spiral dehydrator 3 for dehydration treatment, in the schematic embodiment, the three-way water pipe 6 can be connected to the spiral dehydrator 3 after being tilted downward at a certain angle. Preferably, the tilting angle is 45°. The first valve 701 can be installed at the outlet of the three-way water pipe 6. At the same time, the section where the three-way water pipe 6 is connected to the water storage tank 5 can be set to be horizontal, which can prevent the particulate matter (such as sludge) deposited in the three-way water pipe 6 from being excessively accumulated in the section where the three-way water pipe 6 is connected to the water storage tank 5. Preferably, the second valve 702 can be set closer to the bifurcation side of the three-way water pipe 6 (the intersection of the three passages of the three-way water pipe 6) to reduce the probability that the section where the three-way water pipe 6 is connected to the water storage tank 5 may be blocked due to the accumulation of particulate matter (such as sludge).

[0069] Figure 3 FIG. 1 is a schematic structural diagram of a spray device and a smoke adsorption device according to an embodiment of the present disclosure. Figure 3 Combined with Figure 1 As shown, the flue gas purification device also includes a spray device 8 and a circulating water pump 9. The spray device 8 is installed in the flue gas scrubber body 1. The circulating water pump 9 is installed in the water tank 5 and connected to the spray device 8, and is used to pump the water in the water tank 5 to the spray device 8, so that the water in the water tank 5 is poured out from the spray device 8. Because the water in the water tank 5 is poured out from the spray device 8 under the action of the circulating water pump 9 and falls into the conical storage tank 2, it will flow back to the water tank 5 from the overflow port 201, and then the water will form a cycle between the water tank 5, the circulating water pump 9, the spray device 8 and the conical storage tank 2, so the water tank 5 can also be called a circulating water tank. In the embodiment of the present disclosure, the water circulation system composed of the water tank 5, the circulating water pump 9, the spray device 8 and the conical storage tank 2 is used to realize the recycling of water in the flue gas purification device.

[0070] In the exemplary embodiment, the flue gas purification device may further include a drainage pump 14. The drainage pump 14 is installed on the water storage tank 5 and is used to drain the water in the water storage tank 5. When the device is being repaired or when necessary, the drainage pump 14 can be used to drain the water in the water storage tank 5.

[0071] like Figure 1As shown, in the exemplary embodiment, the flue gas purification device further includes a water supply device 10. The water supply device 10 is connected to the spray device 8 and is used to supply water to the spray device 8. When the flue gas purification device is in use, water needs to be sprayed through the spray device 8. When the flue gas purification device is just started, or when water is lost during the operation of the flue gas purification device and the amount of water in the conical storage tank 2 and / or the water storage tank 5 is insufficient, water can be transported to the spray device 8 by turning on the water supply device 10, and water can be added to the flue gas purification device through the spray device 8, and at the same time, the flue gas passing through the flue gas purification device can be sprayed to remove smoke.

[0072] like Figure 3 Combined with Figure 1 As shown, in the exemplary embodiment, the flue gas purification device further comprises a smoke adsorption device 11. The smoke adsorption device 11 is installed in the flue gas scrubber body 1, wherein the water sprayed by the spray device 8 enters the conical storage tank 2 after passing through the smoke adsorption device 11.

[0073] like Figure 3 As shown, the smoke adsorption device 11 includes a sieve plate 111 and filler balls 112. The sieve plate 111 is installed in the smoke scrubber body 1, and the filler balls 112 are laid on the sieve plate 111.

[0074] like Figure 1 As shown, in the exemplary embodiment, the flue gas purification device further comprises a stirring device 12. The stirring device 12 is installed in the flue gas scrubber body 1 and is located above the packing balls 112, and is used to stir the packing balls 112.

[0075] Figure 4 is a schematic structural diagram of a stirring device part of a flue gas purification device according to an embodiment of the present disclosure, Figure 5 FIG. 1 is a schematic diagram of the structure of the stirring rake part of the flue gas purification device according to an embodiment of the present disclosure, as shown in FIG. Figure 4 , Figure 5 Combined with Figure 3 , Figure 1 As shown, the stirring device 12 includes an agitator 121 and a stirring rake 122. The agitator 121 is installed above the packing balls 112. The stirring rake 122 is connected to the output shaft of the agitator 121. The stirring rake 122 rotates above the packing balls 112 as the output shaft of the agitator 121 rotates. The stirring rake 122 contains a plurality of stirring teeth 123 that are not all arranged at equal intervals. The stirring teeth 123 are inserted between the packing balls 112 and stir the packing balls 112 as the stirring rake 122 rotates. In an illustrative embodiment, the packing balls 112 are steel balls. In a preferred embodiment, the gap between adjacent stirring teeth 123 is greater than the diameter of the packing balls 112.

[0076] like Figure 1As shown, in the exemplary embodiment, the flue gas purification device further comprises a tube bundle demister 13. The tube bundle demister 13 is installed in the flue gas scrubber body 1 and is located below the top gas outlet of the flue gas scrubber body 1.

[0077] like Figure 1 As shown, in the exemplary embodiment, the water supply device 10 also delivers water to the top of the tube bundle demister 13, so that the water flows down from the tube wall of the tube bundle demister 13. In the exemplary embodiment, the tube bundle demister 13 is in the shape of a circular tube, and each part contains at least one layer of guide vanes. When the smoke passes through, the wind direction is changed by the guide vanes and runs along the guide vanes toward the tube wall, so that the smoke moves in the tube bundle demister 13 in a spiral motion. During the spiral motion of the smoke, the particles will collide with the tube wall due to their large inertia and then be washed down by clean water.

[0078] like Figure 1 As shown in the exemplary embodiment, in the flue gas scrubber body 1, the spray device 8, the smoke adsorption device 11 and the stirring device 12 can be arranged in multiple layers as needed, and the spray direction of the spray device 8 can be oriented in multiple directions, for example, the spray direction toward the top and the spray direction toward the bottom can be set. Figure 1 In the illustrated embodiment, in order to avoid the problem that the spraying device 8 and the stirring device 12 are difficult to be arranged on the same side of the smoke adsorption device 11, the spraying device 8 can be arranged below the smoke adsorption device 11 and a spraying method upward and downward is adopted, and the stirring device 12 can be arranged above the smoke adsorption device 11 to facilitate stirring of the filler balls 112.

[0079] like Figure 1 As shown, in the exemplary embodiment, a layer of spray device 8 can be further provided below the tube bundle demister 13, so that the flue gas can be sprayed again before finally entering the tube bundle demister 13 to further reduce the particles contained therein. In order to avoid the tube bundle demister 13 being blocked by water, the spray device 8 provided below the tube bundle demister 13 sprays downwards, not toward the tube bundle demister 13.

[0080] The flue gas purification device of the embodiment of the present disclosure can be applied to the waste gas (flue gas) treatment of steel slag in the metallurgical industry. Figure 1As shown, the directions of the small arrow and the large arrow are the movement directions of water and gas (flue gas), respectively. When the flue gas purification device is working, the flue gas enters the flue gas purification device through the flue gas intake pipe 4, contacts with water in the conical storage tank 2, and the large dust particles in the flue gas fall into the water in the conical storage tank 2, and the small dust particles move upward inside the flue gas washing tower body 1 with the flue gas. In the process of the small dust particles moving upward inside the flue gas washing tower body 1 with the flue gas, after the spraying and dust removal by the spraying device 8 at the bottom layer of the flue gas washing tower body 1, the flue gas enters the smoke adsorption device 11, and after colliding with the liquid film formed by water on the surface of the filler ball 112 in the smoke adsorption device 11, most of the particles therein are removed. After that, the flue gas continues to move upward and passes through the spraying device 8 and the smoke adsorption device 11 of the upper layer to further remove the particles in the flue gas. Finally, the flue gas passes through the tube bundle demister 13, and the water droplets and fine particles in the flue gas are removed under the spiral motion in the tube bundle demister 13. Finally, the purified gas is discharged from the top outlet of the flue gas washing tower body 1, achieving standard emission.

[0081] In the flue gas purification device, the stirring device 12 regularly stirs and bumps the packing balls 112 to prevent particles falling on the packing balls 112 from agglomerating into lumps after mixing with water. The gap between adjacent stirring teeth 123 is larger than the diameter of the packing balls 112, which can avoid the problem of packing balls 112 stacking.

[0082] After the flue gas purification device of the embodiment of the present disclosure has been running for a period of time, a large amount of water and sludge will be stored in the conical storage tank 2. After the large particles of sludge are precipitated, they enter the spiral dehydrator 3 through the first valve 701 of the three-way water pipe 6, and after being dehydrated and compacted by the spiral dehydrator 3, they are discharged through the other end of the spiral dehydrator 3. The second valve 702 can be used to drain the water in the conical storage tank 2 during maintenance.

[0083] In the disclosed embodiment, the water sprayed by the spray device 8 continuously enters the conical storage pool 2 at the bottom, so that the water level in the conical storage pool 2 rises, and flows into the water storage tank 5 from the overflow port 201, and is sent to the spray devices 8 of each layer again by the circulating water pump 9. When the water level in the water storage tank 5 is too high, part of the circulating water therein can be discharged through the drainage pump 14.

[0084] The flue gas purification device of the disclosed embodiment utilizes the conical storage tank provided at the bottom of the flue gas scrubber body to gather the particulate matter mixed in the water at the bottom of the conical storage tank, and discharges the particulate matter through dehydration treatment by a spiral dehydrator connected to the bottom of the conical storage tank, thereby realizing automatic cleaning of the precipitated sludge in the wastewater generated by the flue gas purification. The flue gas purification device of the disclosed embodiment has a simple structure and is easy to implement.

[0085] The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure shall be included in the scope of protection of the present disclosure.

Claims

1. A flue gas purification device, characterized in that: include: Flue gas scrubber body; A conical storage tank, the conical storage tank is connected to the bottom of the flue gas scrubber body and is used to receive water falling from the flue gas scrubber body and particulate matter mixed in the water; A spiral dehydrator is connected to the bottom of the conical storage tank and is used for dehydrating and discharging the particulate matter deposited at the bottom of the conical storage tank.

2. The flue gas purification device according to claim 1, characterized in that: The flue gas purification device also includes: A flue gas intake duct passes through the side wall of the flue gas scrubbing tower body, extends from the outside of the flue gas scrubbing tower body to the conical storage tank, and the flue gas outlet of the flue gas intake duct in the flue gas purification device is located below the horizontal plane in the conical storage tank.

3. The flue gas purification device according to claim 1, characterized in that: The flue gas purification device also includes: A water storage tank, the water storage tank being located outside the flue gas scrubber body and the conical storage tank; Wherein, an overflow port is provided above the conical storage tank, and the overflow port is connected to the water storage tank. When the water level in the conical storage tank reaches the overflow port, the water in the conical storage tank flows into the water storage tank through the overflow port.

4. The flue gas purification device according to claim 3, characterized in that: The flue gas purification device also includes: A spray device, wherein the spray device is installed in the flue gas scrubber body; A circulating water pump is installed on the water storage tank and connected to the spray device, and is used to pump water in the water storage tank to the spray device, so that the water in the water storage tank is sprayed out from the spray device.

5. The flue gas purification device according to claim 4, characterized in that: The flue gas purification device also includes: A water supply device is connected to the spray device and is used to supply water to the spray device.

6. The flue gas purification device according to claim 4, characterized in that: The flue gas purification device also includes: A smoke adsorption device, wherein the smoke adsorption device is installed in the smoke scrubbing tower body; Wherein, the water sprayed by the spraying device enters the conical storage tank after passing through the smoke adsorption device.

7. The flue gas purification device according to claim 6, characterized in that: The smoke adsorption device also includes: A sieve plate, wherein the sieve plate is installed in the flue gas scrubber body; Filling balls are laid on the sieve plate.

8. The flue gas purification device according to claim 7, characterized in that: The smoke adsorption device also includes: A stirring device is installed in the flue gas scrubbing tower body and is located above the packing balls, and is used to stir the packing balls.

9. The flue gas purification device according to claim 8, characterized in that: The stirring device comprises: A stirrer, the stirrer is installed above the filler balls; A stirring rake is connected to the output shaft of the stirrer. The stirring rake rotates above the filler balls as the output shaft of the stirrer rotates. The stirring rake includes a plurality of stirring teeth arranged at unequal intervals. The stirring teeth are inserted between the filler balls and stir the filler balls as the stirring rake rotates.

10. The flue gas purification device according to claim 1, characterized in that: The flue gas purification device also includes: A tube bundle demister is installed in the flue gas scrubbing tower body and is located below the top air outlet of the flue gas scrubbing tower body.

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