Environment-friendly efficient industrial flue gas desulfurization and dust removal device
By designing structures such as support bases, protective shells, and dust collection boxes, the residence time of flue gas is extended and the sealing performance is improved, solving the problem of incomplete reaction of flue gas in existing equipment, and achieving efficient flue gas purification and convenient maintenance operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-16
- Publication Date
- 2026-04-14
AI Technical Summary
During operation, existing desulfurization and dust removal equipment suffers from unsatisfactory desulfurization and dust removal effects because the flue gas flow rate is relatively high, resulting in some flue gas not reacting with the absorbent or not reacting completely.
The equipment is designed with a support base, protective shell, dust collection box, bracket, dustproof plate, filter, partition, adsorption layer, water tank, water pipe, and guide channel. It extends the residence time of flue gas through water curtain and multi-layer adsorption layers to improve purification efficiency, and ensures the equipment's airtightness and convenient maintenance through sealing plate and sewage outlet structure.
It improves flue gas purification efficiency, reduces dust content, enhances equipment sealing and maintenance convenience, and ensures effective adsorption and emission of sulfides in flue gas.
Smart Images

Figure CN121846837A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of desulfurization and dust removal equipment, and in particular to an environmentally friendly and efficient industrial flue gas desulfurization and dust removal equipment. Background Technology
[0002] To reduce industrial waste gas pollution, flue gas desulfurization is necessary during industrial production. Flue gas desulfurization refers to the removal of sulfur oxides (SO2 and SO3) from flue gas or other industrial waste gases. Desulfurization involves fixing sulfur elements in coal into a solid state using methods such as calcium-based methods to prevent the generation of SO2 during combustion. The gypsum desulfurization process is one of the most widely used desulfurization technologies in the world. Its working principle is as follows: limestone powder is mixed with water to form a slurry, which is then pumped into the absorption tower to fully contact and mix with the flue gas. The sulfur dioxide in the flue gas reacts with the calcium carbonate in the slurry and the air blown in from the bottom of the tower to produce calcium sulfate. After the calcium sulfate reaches a certain saturation, it crystallizes to form dihydrate gypsum. However, existing desulfurization and dust removal equipment has some problems in use. Due to the high flow rate of the flue gas, some flue gas is discharged through the outlet pipe before reacting with the absorbent or before the reaction is complete, resulting in unsatisfactory flue gas desulfurization and dust removal effects. Summary of the Invention
[0003] The purpose of this invention is to solve the technical problems mentioned in the background section.
[0004] The present invention adopts the following technical solution: an environmentally friendly and efficient industrial flue gas desulfurization and dust removal device, comprising a support base, a protective shell fixedly installed on the surface of the support base, a top cover fixedly installed on the top of the protective shell, an exhaust pipe fixedly installed on the surface of the top cover, an air inlet provided on the side of the protective shell, a dust collection box fixedly installed on the surface of the air inlet, a bracket fixedly installed inside the dust collection box, a dustproof plate fixedly installed on the side of the bracket, a filter fixedly installed inside the bracket, a cover plate fixedly installed on the top surface of the dust collection box, an air inlet pipe fixedly installed on the side of the dust collection box, a partition fixedly installed inside the protective shell, an adsorption layer fixedly installed inside the partition, a water tank fixedly installed on the surface of the protective shell, a water pipe fixedly installed on the surface of the water tank, and the water pipe passing through the protective shell and connecting to the interior of the protective shell.
[0005] Preferably, a fixing plate is fixedly installed inside the protective shell, and a slot is formed on the surface of the fixing plate. The partition is located directly above the slot. This facilitates the flow of flue gas entering the protective shell through the slot into the partition, improving the sealing performance of the flue gas treatment.
[0006] Preferably, the bottom surface of the partition plate has through holes, and the partition plates are connected to each other through the through holes. Here, the flue gas passes through the through holes and is adsorbed by the adsorption layer for impurities, while prolonging the residence time of the flue gas in the partition plate and improving the desulfurization effect of the flue gas.
[0007] Preferably, a flow guide channel is fixedly installed inside the protective shell, and the water pipe is connected to the flow guide channel, with the flow guide channel located above the partition. This facilitates the flow of desulfurizing agent from the water tank into the partition through the water pipe. The flow guide channel allows the clean water containing the desulfurizing agent to be evenly dispersed inside the partition, forming a water curtain and improving flue gas purification efficiency.
[0008] Preferably, a round rod is fixedly installed inside the dust collection box, and a round hole is formed on the bottom surface of the bracket. This helps to improve the stability of the bracket inside the dust collection box.
[0009] Preferably, a sealing plate is fixedly installed on the surface of the bracket, and the sealing plate is located between the top surface of the cover plate and the dust collector. Here, the sealing plate can be used to securely hold the bracket inside the dust collector, ensuring a stable assembly between the bracket and the dust collector.
[0010] Preferably, sealing rings are fixedly installed on both the top and bottom surfaces of the sealing plate, and the sealing rings surround the surface of the sealing plate. This helps to improve the sealing performance between the cover plate and the dust collector, preventing flue gas leakage.
[0011] Preferably, the bottom of the protective shell has a drain outlet that penetrates through the bottom surface of the support base and connects to the outside. A ramp is fixedly installed at the bottom of the protective shell, surrounding the drain outlet. This allows for convenient centralized collection and discharge of contaminants generated during the desulfurization process, and the ramp prevents contaminants from accumulating at the bottom of the protective shell.
[0012] Preferably, a drain pipe is fixedly installed on the bottom surface of the support base, and a control valve is fixedly installed on the surface of the drain pipe. Here, the control valve allows personnel to easily control the discharge of generated waste, improving the convenience of the discharge process.
[0013] Compared with the prior art, the advantages and positive effects of the present invention are as follows:
[0014] 1. In this invention, a structure consisting of a dust collector, support frame, dustproof plate, filter, partition, adsorption layer, water tank, water pipe, and guide channel is constructed. Clean water containing desulfurizing agent, pumped by a water pump, enters the guide channel through the water pipe. The water flows evenly onto the surface of the partition, forming a water curtain. Flue gas enters the partition through the channel opening. Under the action of the adsorption layer and water curtain, the remaining dust and sulfides in the flue gas are adsorbed and purified. The multiple partitions and adsorption layer extend the residence time of the flue gas within the partitions, improving purification efficiency. Finally, the purified flue gas is discharged through the exhaust pipe. The flue gas enters the interior of the dust collector through the inlet pipe. The dustproof plate removes large dust particles from the flue gas, and the filter further removes fine dust particles, reducing the dust content in the flue gas.
[0015] 2. In this invention, by setting up a structure of round rod, round hole, sealing plate, and sealing ring, the bracket can be fixed between the cover plate and the dust collector box through the sealing plate. Under the action of the sealing ring, the sealing performance between the cover plate and the dust collector box is improved, preventing flue gas leakage. At the same time, the bracket can be stabilized inside the dust collector box, so that the bracket can be stably assembled with the dust collector box and prevent the bracket from shaking inside the dust collector box. The cover plate can be removed from the top surface of the dust collector box, and then the bracket can be taken out from the inside of the dust collector box, which makes it convenient for personnel to maintain or replace the dust plate and filter.
[0016] 3. In this invention, by setting up a drain outlet, inclined platform, drain pipe, and control valve structure, the stains generated by flue gas and desulfurizing agent will fall to the bottom of the protective shell. Using the inclined platform, the fallen stains will move towards the drain outlet under the action of gravity, so that the stains can be discharged outward through the drain outlet. At this time, personnel can conveniently control the discharge of stains using the control valve, and discharge the stains to the outside through the drain pipe, which improves the convenience of the discharge process and makes it easier for personnel to operate. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of an environmentally friendly and efficient industrial flue gas desulfurization and dust removal device proposed in this invention;
[0018] Figure 2 This invention provides an internal schematic diagram of the protective casing of an environmentally friendly and efficient industrial flue gas desulfurization and dust removal device;
[0019] Figure 3 A schematic diagram of a baffle plate for an environmentally friendly and efficient industrial flue gas desulfurization and dust removal device proposed in this invention;
[0020] Figure 4 This is a schematic diagram of the dust collector box of an environmentally friendly and efficient industrial flue gas desulfurization and dust removal device proposed in this invention;
[0021] Figure 5 A schematic diagram of a support frame for an environmentally friendly and efficient industrial flue gas desulfurization and dust removal device proposed in this invention;
[0022] Figure 6 This invention provides an internal schematic diagram of the dust collector box of an environmentally friendly and efficient industrial flue gas desulfurization and dust removal device.
[0023] Figure 7 A schematic diagram of a support base for an environmentally friendly and efficient industrial flue gas desulfurization and dust removal device proposed in this invention;
[0024] Figure 8 The image shows a bottom view of a support base for an environmentally friendly and efficient industrial flue gas desulfurization and dust removal device proposed in this invention.
[0025] Legend:
[0026] 1. Support base; 2. Protective shell; 3. Top cover; 4. Exhaust pipe; 5. Air inlet; 6. Dust collector; 7. Cover plate; 8. Bracket; 9. Dustproof plate; 10. Filter; 11. Air inlet pipe; 12. Fixing plate; 13. Groove; 14. Partition plate; 15. Through hole; 16. Adsorption layer; 17. Water tank; 18. Water pipe; 19. Guide groove; 20. Round rod; 21. Round hole; 22. Sealing plate; 23. Sealing ring; 24. Drain outlet; 25. Inclined platform; 26. Drain pipe; 27. Control valve. Detailed Implementation
[0027] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0028] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways than those described herein, and therefore the invention is not limited to the specific embodiments disclosed in the following specification.
[0029] Example 1
[0030] Please see Figure 1-5This invention provides a technical solution: an environmentally friendly and efficient industrial flue gas desulfurization and dust removal device, comprising a support base 1, a protective shell 2 fixedly installed on the surface of the support base 1, a top cover 3 fixedly installed on the top of the protective shell 2, an exhaust pipe 4 fixedly installed on the surface of the top cover 3, an air inlet 5 provided on the side of the protective shell 2, a dust collection box 6 fixedly installed on the surface of the air inlet 5, a bracket 8 fixedly installed inside the dust collection box 6, a dustproof plate 9 fixedly installed on the side of the bracket 8, a filter 10 fixedly installed inside the bracket 8, a cover plate 7 fixedly installed on the top surface of the dust collection box 6, an air inlet pipe 11 fixedly installed on the side of the dust collection box 6, a partition 14 fixedly installed inside the protective shell 2, and a suction device fixedly installed inside the partition 14. The protective shell 2 is fitted with a fixed plate 12 inside the auxiliary layer 16. The fixed plate 12 has a slot 13 on its surface. A partition 14 is located directly above the slot 13, which helps the flue gas entering the protective shell 2 to pass through the slot 13 into the partition 14, improving the sealing of the flue gas treatment. The bottom surface of the partition 14 has through holes 15, connecting the partitions. This allows the flue gas to pass through the through holes 15 and be adsorbed by the adsorption layer 16, extending the residence time of the flue gas in the partition 14 and improving the desulfurization effect. A water tank 17 is fixedly installed on the surface of the protective shell 2, and a water pipe 18 is fixedly installed on the surface of the water tank 17. The water pipe 18 passes through the protective shell 2 and connects to the protective shell. Inside the protective casing 2, a guide channel 19 is fixedly installed. A water pipe 18 is connected to the guide channel 19, which is located above the partition 14. This facilitates the flow of desulfurizing agent from the water tank 17 into the partition 14 via the water pipe 18. The guide channel 19 evenly disperses the clean water containing the desulfurizing agent within the partition 14, forming a water curtain and improving flue gas purification efficiency. During flue gas desulfurization and dust removal, the flue gas enters the dust collector 6 through the inlet pipe 11. Subsequently, the flue gas passes through the dust filter 9 and enters the filter 10. The dust filter 9 removes large dust particles from the flue gas, and the filter 10 filters and purifies the fine dust particles, reducing the concentration of dust in the flue gas. The dust content is reduced, and then the flue gas with most of the dust removed enters the interior of the protective shell 2 through the air inlet 5. At this time, the clean water containing desulfurizing agent in the water tank 17 enters the guide channel 19 through the water pipe 18 under the action of the water pump. Under the action of the guide channel 19, the clean water containing desulfurizing agent can flow evenly onto the surface of the baffle 14 to form a water curtain. Then, the flue gas enters the baffle 14 through the slot 13. Under the action of the adsorption layer 16 and the water curtain, the remaining dust and sulfides in the flue gas are adsorbed and purified. By setting multiple baffles 14 and adsorption layers 16, the residence time of the flue gas in the baffle 14 can be extended, and the purification efficiency can be improved. Finally, the purified flue gas is discharged through the exhaust pipe 4.
[0031] Example 2
[0032] Please see Figure 4-6 A round rod 20 is fixedly installed inside the dust collector 6. A round hole 21 is opened on the bottom surface of the support 8. The round rod 20 slides inside the round hole 21, which can improve the stability of the support 8 inside the dust collector 6. A sealing plate 22 is fixedly installed on the surface of the support 8. The sealing plate 22 is located between the top surface of the cover plate 7 and the top surface of the dust collector 6. A sealing ring 23 is fixedly installed on both the top and bottom surfaces of the sealing plate 22. The sealing ring 23 surrounds the surface of the sealing plate 22. The support 8 can be fixed to the cover plate 7 and the dust collector 6 through the sealing plate 22. Between the dust collection boxes 6, the sealing ring 23 improves the sealing performance between the cover plate 7 and the dust collection box 6, preventing smoke leakage. At the same time, it can stabilize the bracket 8 inside the dust collection box 6, ensuring stable assembly of the bracket 8 and preventing the bracket 8 from shaking inside the dust collection box 6. When the dust collection box 6 needs maintenance, the cover plate 7 can be removed from the top surface of the dust collection box 6, and then the bracket 8 can be taken out from the inside of the dust collection box 6, which makes it convenient for personnel to maintain or replace the dust cover plate 9 and the filter 10.
[0033] Example 3
[0034] Please see Figure 7-8 The bottom of the protective shell 2 is provided with a drain port 24, which runs through the bottom surface of the support base 1 and is connected to the outside. A ramp 25 is fixedly installed at the bottom of the protective shell 2, which surrounds the drain port 24. A drain pipe 26 is fixedly installed on the bottom surface of the support base 1, and a control valve 27 is fixedly installed on the surface of the drain pipe 26. When the flue gas passes through the baffle 14, the remaining fine dust and sulfides in the flue gas are filtered and purified by the water curtain formed, and harmful gases are adsorbed. The dust, sulfides and stains produced by the desulfurizing agent will fall to the bottom of the protective shell 2. Using the ramp 25, the fallen stains move towards the drain port 24 under the action of gravity, so that the stains are discharged outward through the drain port 24. At this time, the personnel can conveniently control the discharge of the stains using the control valve 27, and discharge the stains to the outside through the drain pipe 26, which improves the convenience of the discharge process and makes it easier for personnel to operate.
[0035] Working principle: When desulfurizing and removing dust from flue gas, the flue gas enters the dust collection box 6 through the inlet pipe 11, and then enters the filter 10 through the dust filter plate 9. The dust filter plate 9 removes large dust particles from the flue gas, and the filter 10 filters and purifies the fine dust particles, reducing the dust content in the flue gas. Then, the flue gas with most of the dust removed enters the protective shell 2 through the inlet 5. At this time, the clean water containing desulfurizing agent in the water tank 17 enters the guide channel through the water pipe 18 under the action of the water pump. In channel 19, clean water containing desulfurizing agent flows evenly onto the surface of baffle 14 under the action of the guide channel 19, forming a water curtain. At this time, flue gas enters the baffle 14 through the slot 13. Under the action of the adsorption layer 16 and the water curtain, the remaining dust and sulfides in the flue gas are adsorbed and purified. By setting multiple baffles 14 and adsorption layers 16, the residence time of the flue gas in the baffles 14 can be extended, improving the purification efficiency. Finally, the purified flue gas is discharged through the exhaust pipe 4. During the process of the flue gas passing through the baffles 14, the remaining... Fine dust and sulfides are filtered and purified by the formed water curtain, and harmful gases are adsorbed. The dust, sulfides, and stains from the desulfurizing agent fall to the bottom of the protective casing 2. Using the inclined platform 25, the fallen stains move towards the drain outlet 24 under gravity, allowing them to be discharged outwards. Personnel can easily control the discharge using the control valve 27, discharging the stains to the outside through the drain pipe 26, improving the convenience of the discharge process and facilitating operation. This is achieved through the sealing plate 22. The bracket 8 can be fixed between the cover plate 7 and the dust collector 6. Under the action of the sealing ring 23, the sealing performance between the cover plate 7 and the dust collector 6 is improved, preventing flue gas leakage. Simultaneously, the bracket 8 can be firmly secured inside the dust collector 6, ensuring stable assembly and preventing shaking within the dust collector 6. When maintenance of the dust collector 6 is required, the cover plate 7 can be removed from the top surface of the dust collector 6, and then the bracket 8 can be removed from the inside of the dust collector 6. This facilitates maintenance or replacement of the dust cover plate 9 and the filter 10. The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments applicable to other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention still fall within the protection scope of the present invention.
Claims
1. An environmentally friendly and efficient industrial flue gas desulfurization and dust removal device, comprising a support base (1), characterized in that: A protective shell (2) is fixedly installed on the surface of the support base (1). A top cover (3) is fixedly installed on the top of the protective shell (2). An exhaust pipe (4) is fixedly installed on the surface of the top cover (3). An air inlet (5) is provided on the side of the protective shell (2). A dust collector (6) is fixedly installed on the surface of the air inlet (5). A bracket (8) is fixedly installed inside the dust collector (6). A dustproof plate (9) is fixedly installed on the side of the bracket (8). A filter is fixedly installed inside the bracket (8). (10) A cover plate (7) is fixedly installed on the top surface of the dust collector (6). An air inlet pipe (11) is fixedly installed on the side of the dust collector (6). A partition plate (14) is fixedly installed inside the protective shell (2). An adsorption layer (16) is fixedly installed inside the partition plate (14). A water tank (17) is fixedly installed on the surface of the protective shell (2). A water pipe (18) is fixedly installed on the surface of the water tank (17). The water pipe (18) passes through the protective shell (2) and connects to the interior of the protective shell (2).
2. The environmentally friendly and efficient industrial flue gas desulfurization and dust removal device according to claim 1, characterized in that: A fixing plate (12) is fixedly installed inside the protective shell (2). A slot (13) is opened on the surface of the fixing plate (12), and the partition (14) is located directly above the slot (13).
3. The environmentally friendly and efficient industrial flue gas desulfurization and dust removal device according to claim 1, characterized in that: The bottom surface of the partition (14) is provided with a through hole (15), and the partitions (14) are connected to each other through the through hole (15).
4. The environmentally friendly and efficient industrial flue gas desulfurization and dust removal device according to claim 1, characterized in that: The protective shell (2) has a guide channel (19) fixedly installed inside. The water pipe (18) is connected to the guide channel (19), and the guide channel (19) is located above the partition (14).
5. The environmentally friendly and efficient industrial flue gas desulfurization and dust removal device according to claim 1, characterized in that: A round rod (20) is fixedly installed inside the dust collection box (6), and a round hole (21) is opened on the bottom surface of the bracket (8).
6. The environmentally friendly and efficient industrial flue gas desulfurization and dust removal device according to claim 1, characterized in that: A sealing plate (22) is fixedly installed on the surface of the bracket (8), and the sealing plate (22) is located between the top surface of the cover plate (7) and the dust collection box (6).
7. The environmentally friendly and efficient industrial flue gas desulfurization and dust removal device according to claim 6, characterized in that: The sealing plate (22) is fixedly installed with sealing rings (23) on both the top and bottom surfaces, and the sealing rings (23) surround the surface of the sealing plate (22).
8. The environmentally friendly and efficient industrial flue gas desulfurization and dust removal device according to claim 1, characterized in that: The bottom of the protective shell (2) is provided with a drain port (24), which penetrates through the bottom surface of the support base (1) and is connected to the outside. A ramp (25) is fixedly installed at the bottom of the protective shell (2), and the ramp (25) surrounds the drain port (24).
9. The environmentally friendly and efficient industrial flue gas desulfurization and dust removal device according to claim 1, characterized in that: A drain pipe (26) is fixedly installed on the bottom surface of the support base (1), and a control valve (27) is fixedly installed on the surface of the drain pipe (26).