A flue gas desulfurization reaction device

Abstract

The utility model relates to the technical field of flue gas treatment, and discloses a flue gas desulfurization reaction device, including a bottom plate, a preheating box is fixedly connected to the left upper part of the bottom plate, a purification tower is fixedly connected to the middle upper part of the bottom plate, an air pipe 1 is fixedly connected to the interior of the preheating box, the right end of the air pipe 1 is fixedly connected to the interior of the purification tower, two air jets are fixedly connected to the lower right end of the air pipe 1, a water pipe 1 is fixedly connected to the top of the preheating box, a water pump 1 is fixedly connected to the top of the preheating box, and the upper end of the water pipe 1 is fixedly connected to the input end of the water pump 1. In the utility model, through the coordination between the preheating box, the purification tower, the air pipe 1, the water pipe 1, the water pump 1, the water pipe 2, the distribution plate, the corrugated packing layer, the grid packing layer, the water shower head, the air pipe 3, the exhaust port, the water pipe 4 and the two air jets, the functions of waste heat utilization of high-temperature flue gas and efficient desulfurization of flue gas are realized.

Description

Technical Field

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

[0002] Flue gas desulfurization devices originated from the recognition of the harm caused by sulfides (mainly sulfur dioxide) in industrial emissions to the environment and human health. Sulfur dioxide is a major atmospheric pollutant that not only leads to the formation of acid rain, but also causes serious pollution to the atmosphere, water bodies and soil, causing harm to the ecosystem and human health.

[0003] Existing technologies include: wet desulfurization, which absorbs sulfur dioxide into the liquid phase to form calcium sulfate or ammonium sulfate compounds by contacting flue gas with an alkaline absorption liquid (such as lime slurry, ammonia water), and then obtains calcium sulfate or ammonium sulfate products through subsequent treatment; dry desulfurization, which converts sulfides into harmless substances by adsorption or chemical reaction by contacting flue gas with a solid adsorbent or chemical absorbent.

[0004] Traditional flue gas desulfurization reaction devices do not cool down the high-temperature flue gas during desulfurization. The high-temperature flue gas directly contacts the low-temperature treatment liquid and produces a large amount of steam. A large amount of steam is not conducive to the desulfurization reaction, and the entire equipment is in a high-temperature and high-pressure environment. This environment will accelerate the aging and corrosion of the internal materials of the desulfurization device, shorten the service life of the equipment and reduce the desulfurization reaction rate. Therefore, a flue gas desulfurization reaction device is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a flue gas desulfurization reaction device, which aims to improve the problem in the prior art that the direct contact between high-heat flue gas and treatment liquid leads to a decrease in the desulfurization reaction rate and a shortened service life of the equipment.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a flue gas desulfurization reaction device, comprising a bottom plate, a preheating box is fixedly connected to the left side of the upper part of the bottom plate, a purification tower is fixedly connected to the middle part of the upper part of the bottom plate, an air pipe 1 is fixedly connected to the interior of the preheating box, the right end of the air pipe 1 is fixedly connected to the interior of the purification tower, two air jets are fixedly connected to the lower side of the right end of the air pipe 1, a water pipe 1 is fixedly connected to the top of the preheating box, a water pump 1 is fixedly connected to the top of the preheating box, and the upper end of the water pipe 1 is fixedly connected to the output of the water pump 1 The inlet end of the purification tower is fixedly connected to a water pipe 4 on the front side of the preheating box, a water pipe 2 is fixedly connected to the upper left side of the purification tower, the left end of the water pipe 2 is fixedly connected to the output end of the water pump 1, the right end of the water pipe 2 is fixedly connected to a water shower head, a distribution plate is fixedly connected to the middle part of the interior of the purification tower, a corrugated packing layer is fixedly connected to the middle part of the interior of the purification tower, a grid packing layer is fixedly connected to the middle part of the interior of the purification tower, an air pipe 3 is fixedly connected to the upper part of the purification tower, the right end of the air pipe 3 is fixedly connected to an exhaust port, and a filter assembly is arranged on the right side of the upper part of the bottom plate.

[0007] Further, the filtering assembly includes a motor, which is fixedly connected to the bottom middle part of the base plate, and the inner bottom of the base plate is rotatably connected to a fixing plate, the lower part of the fixing plate is fixedly connected to the driving end of the motor, and scraper rods are fixedly connected to the left and right sides of the fixing plate, and a water pump 2 is fixedly connected to the upper right side of the base plate, and the input end of the water pump 2 is fixedly connected to the lower right part of the inner part of the purification tower, and a recovery box is fixedly connected to the upper right side of the base plate, and a water pipe 3 is fixedly connected to the top of the recovery box, and the lower left end of the water pipe 3 is fixedly connected to the output end of the water pump 2, and a sieve box is slidably connected to the interior of the recovery box, and a pin hole is provided on the upper front side of the sieve box, and a latch is slidably connected to the inner front side of the recovery box, and the lower end of the latch is fixedly connected to a limiting plate, and a spring is sleeved on the outer periphery of the lower end of the latch, and a water pipe 5 is fixedly connected to the lower right side of the recovery box.

[0008] Furthermore, the distribution plate is made of glass fiber reinforced plastic.

[0009] Furthermore, the corrugated packing layer is made of polypropylene.

[0010] Furthermore, the grid filler layer is made of ceramic.

[0011] Furthermore, the lower end of the latch is slidably connected to the inside of the pin hole.

[0012] Furthermore, the upper end of the latch is rotatably connected with a pull ring, and the spring is located on the upper part of the limiting plate.

[0013] Furthermore, a handle is fixedly connected to the front side of the screen box, and a solenoid valve is fixedly connected to the middle part of the water pipe five.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, the high-temperature flue gas flows through the air pipe 1, and the water pipe 4 will transport a large amount of treatment liquid into the interior of the preheating box. The heat of the high-temperature flue gas will be absorbed by the treatment liquid, and then the low-temperature flue gas will enter the interior of the purification tower through two jet ports. Start the water pump 1 to make the temperature-increased treatment liquid flow through the water pipe 1 and the water pipe 2 and be sprayed evenly on the surface of the grid filler layer through the water shower head. The treatment liquid will penetrate downward into the corrugated filler layer and the interior of the distribution plate under the action of gravity, and then flow and gather at the bottom of the purification tower. At the same time, the low-temperature flue gas will penetrate upward under the action of the concentration gradient, and the two will be on the corrugated filler. In order to allow the flue gas and the treated liquid to fully react in the layer and the grid packing layer, a large number of vertical empty grooves are opened inside the grid packing layer to increase the contact area between the two. The corrugated packing layer uses the multi-channel wave structure on the upper and lower sides to reduce the flow rate of the flue gas and the treated liquid and increase the contact time between the two. The distribution plate uses a large number of evenly distributed holes to force the flue gas to evenly enter the grid packing layer and the corrugated packing layer. Then the reacted treated liquid gathers at the bottom of the purification tower, and the flue gas will be discharged from the exhaust port after treatment, thereby realizing the waste heat utilization of high-temperature flue gas and improving the desulfurization reaction rate of the equipment.

[0016] 2. In the utility model, the motor is started, the motor will drive the fixed plate to rotate, the fixed plate will push the two scraper rods to rotate and continuously scrape the solid particles attached to the inner wall of the purification tower, the water pump is started to extract the treated liquid mixture through the water pipe three into the interior of the recovery box, the solid particles in the treated liquid mixture will be blocked by the screen box and remain inside the screen box, the liquid will flow through the screen box into the bottom of the recovery box for temporary storage, the pull ring is pulled upwards, the pull ring will pull the pin to slide upwards, the pin will drive the limit plate to slide upwards, the limit plate will squeeze the spring to contract, and then the handle is pulled to take the screen box out of the recovery box for cleaning, thereby realizing the functions of cleaning the inside of the purification tower and filtering the treated liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional schematic diagram of a flue gas desulfurization reaction device proposed by the utility model;

[0018] Figure 2 This is a schematic structural diagram of a gas pipe 1 of a flue gas desulfurization reaction device proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of a corrugated packing layer of a flue gas desulfurization reaction device proposed by the utility model;

[0020] Figure 4 The utility model provides a schematic structural diagram of a screen box of a flue gas desulfurization reaction device.

[0021] Legend:

[0022] 1. Bottom plate; 2. Preheating box; 3. Purification tower; 4. Recovery box; 5. Air pipe one; 6. Water pipe one; 7. Water pump one; 8. Water pipe two; 9. Distribution plate; 10. Corrugated packing layer; 11. Grid packing layer; 12. Water shower head; 13. Motor; 14. Fixed plate; 15. Scraper rod; 16. Water pump two; 17. Water pipe three; 18. Latch; 19. Pull ring; 20. Spring; 21. Limit plate; 22. Screen box; 23. Handle; 24. Air pipe three; 25. Exhaust port; 26. Water pipe five; 27. Solenoid valve; 28. Pin hole; 29. ​​Water pipe four; 30. Jet port. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Reference Figure 1-Figure 3The utility model provides an embodiment: a flue gas desulfurization reaction device, including a bottom plate 1, the bottom plate 1 is used to support the stability of multiple boxes on the upper part, a preheating box 2 is fixedly connected to the upper left side of the bottom plate 1, the preheating box 2 is used to temporarily store the treatment liquid, a purification tower 3 is fixedly connected to the upper middle part of the bottom plate 1, the purification tower 3 is used to provide a desulfurization reaction space isolated from air, an air pipe 5 is fixedly connected to the interior of the preheating box 2, and a plurality of curved pipes are arranged in the middle of the air pipe 5, which are used to increase the contact area between the air pipe 5 and the treatment liquid, the right end of the air pipe 5 is fixedly connected to the interior of the purification tower 3, and two jet ports 30 are fixedly connected to the lower side of the right end of the air pipe 5, and the two jet ports 30 are used to discharge the flue gas in the air pipe 5, and a water pipe 6 is fixedly connected to the top of the preheating box 2, and the water pipe 6 is used to transport the treatment liquid, the preheating box 2 A water pump 7 is fixedly connected to the top of the purification tower 3, and the water pump 7 is used to extract the treatment liquid. The upper end of the water pipe 6 is fixedly connected to the input end of the water pump 7. A water pipe 4 29 is fixedly connected to the front side of the preheating box 2, and the water pipe 4 29 is used to transport the treatment liquid. A water pipe 28 is fixedly connected to the upper left side of the purification tower 3, and the water pipe 28 is used to transport the treatment liquid. The left end of the water pipe 28 is fixedly connected to the output end of the water pump 7, and the right end of the water pipe 28 is fixedly connected to a water shower head 12, which can evenly spray the treatment liquid on the interior of the purification tower 3. An air pipe 3 24 is fixedly connected to the upper part of the purification tower 3, and the air pipe 3 24 is used to discharge the flue gas after desulfurization. The right end of the air pipe 3 24 is fixedly connected to an exhaust port 25, and the exhaust port 25 is used to discharge the flue gas and prevent the outside air from entering the interior of the purification tower 3. A filter component is arranged on the upper right side of the bottom plate 1.

[0025] Reference Figure 1 , Figure 2 and Figure 4The filter assembly includes a motor 13, which is used to drive a fixed plate 14 to rotate. The motor 13 is fixedly connected to the middle of the bottom of the bottom plate 1. The inner bottom of the bottom plate 1 is rotatably connected to the fixed plate 14. The fixed plate 14 is used to drive two scraping rods 15. The lower part of the fixed plate 14 is fixedly connected to the driving end of the motor 13. The left and right sides of the fixed plate 14 are fixedly connected to the scraping rods 15. The two scraping rods 15 are attached to the inner wall of the purification tower 3. The brushes are provided on one side, and the brushes can ensure the cleaning effect of the two scraping rods 15. The upper right side of the bottom plate 1 is fixedly connected to a water pump 16 The water pump 2 16 extracts the treated liquid after the reaction. The input end of the water pump 2 16 is fixedly connected to the lower right part of the interior of the purification tower 3. The upper right part of the bottom plate 1 is fixedly connected with a recovery box 4. The recovery box 4 is used to provide a filtering space and temporarily store the treated liquid after the reaction. The top of the recovery box 4 is fixedly connected with a water pipe 3 17. The water pipe 3 17 is used to transport the treated liquid after the reaction. The lower left end of the water pipe 3 17 is fixedly connected to the output end of the water pump 2 16. The water pump 2 16 can extract the treated liquid after the reaction from the purification tower 3 and transport it to the recovery box through the water pipe 3 17. The interior of the collection box 4 is slidably connected to a screen box 22, which is used to filter out solid particles in the treated liquid after the reaction. A handle 23 is fixedly connected to the front side of the screen box 22, and the handle 23 is used to pull the screen box 22 open. A pin hole 28 is provided on the upper front side of the screen box 22, and the pin hole 28 is used to provide an insertion space for the latch 18. The front side of the interior of the recycling box 4 is slidably connected to a latch 18, and the latch 18 is used to fix the screen box 22. The upper end of the latch 18 is rotatably connected to a pull ring 19, and the pull ring 19 is used to pull the latch 18. The lower end of the latch 18 slides The latch 18 is movably connected to the inside of the pin hole 28, and the lower end of the latch 18 is fixedly connected to a limit plate 21, which is used to prevent the latch 18 from slipping and provide rebound support for the spring 20. The outer periphery of the lower end of the latch 18 is sleeved with a spring 20, which is used to rebound and push the latch 18 back to its original position. The spring 20 is located on the upper part of the limit plate 21, and the lower right part of the recovery box 4 is fixedly connected to a water pipe 5 26, which is used to discharge the filtered treated liquid, and the middle part of the water pipe 5 26 is fixedly connected to a solenoid valve 27, which is used to control the circulation or closure of the water pipe 5 26.

[0026] Working principle: When the equipment is running, there will be a continuous flow of high-temperature flue gas flowing through the air pipe 15, and at the same time, the water pipe 4 29 will also transport a large amount of treatment liquid into the interior of the preheating box 2. The heat of the high-temperature flue gas will be absorbed by a large amount of treatment liquid, and then the low-temperature flue gas will be evenly discharged to the lower side of the interior of the purification tower 3 through the two jet ports 30 on the lower right side of the air pipe 15. The flue gas concentration on the lower side of the interior of the purification tower 3 will rise, and at the same time, the water pump 17 will start to suck out the temperature-increased treatment liquid through the water pipe 16, and then flow through the water pipe 28, and finally evenly spray it on the surface of the grid filler layer 11 through the water shower head 12, and then the treatment liquid will penetrate downward into the grid filler layer 11, the corrugated filler layer 10 and the distribution plate 9 under the action of gravity. In order to fully allow the flue gas and the treatment liquid to contact each other, a large number of vertical slots are opened inside the grid packing layer 11 to increase the contact area between the two. The corrugated packing layer 10 uses the multi-channel wave structure on the upper and lower sides to reduce the flow rate of the flue gas and the treatment liquid and increase the contact time between the two. The distribution plate 9 uses a large number of evenly distributed holes to force the flue gas to evenly enter the grid packing layer 11 and the corrugated packing layer 10. At the same time, the flue gas will also penetrate upward under the action of the concentration gradient. Finally, the flue gas will meet in the internal holes of the grid packing layer 11, the corrugated packing layer 10 and the distribution plate 9. The sulfur dioxide in the flue gas will react with the treatment liquid to form solid particles that are insoluble in water. Since the treatment liquid is preheated, the temperature of the treatment liquid is increased. High, so it can accelerate the desulfurization reaction, the treated liquid after the reaction will push the solid particles downward to flow into the bottom of the purification tower 3, and the flue gas after the reaction will continue to rise and be discharged through the air pipe three 24 and the exhaust port 25. When the treated liquid mixture after the reaction is gathered at the bottom of the purification tower 3, the motor 13 is started. At this time, the motor 13 will drive the fixed plate 14 to rotate, and the fixed plate 14 will drive the two scrapers 15 to continuously scrape the solid particles attached to the inner wall of the purification tower 3, and the water pump 2 16 is started. At this time, the water pump 2 16 will extract the treated liquid mixture to flow through the water pipe three 17 into the interior of the recovery box 4. The solid particles in the treated liquid mixture will be blocked by the screen box 22 and remain in the screen box 22. The treated liquid after the reaction will flow through the screen box 22 enters the bottom of the recovery box 4 for temporary storage. When the treated liquid after the reaction needs to be discharged, the solenoid valve 27 is controlled to make the water pipe 5 26 unblocked, thereby the treated liquid after the reaction can be drained, and then the pull ring 19 is pulled upward, the pull ring 19 will pull the latch 18 to slide upward inside the front side of the recovery box 4, the latch 18 will drive the limit plate 21 to slide upward, the limit plate 21 will squeeze the spring 20 to shrink, and then pull the handle 23 to take the screen box 22 out of the recovery box 4 for cleaning, and then push it back into the interior of the recovery box 4, and then release the pull ring 19, at this time the spring 20 will lose the extrusion and start to rebound, the spring 20 will push the limit plate 21 to slide downward, and at this time the limit plate 21 will push the latch 18 to slide downward and insert into the pin hole 28.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flue gas desulfurization reaction device, comprising a bottom plate (1), characterized in that: A preheating box (2) is fixedly connected to the left upper part of the bottom plate (1), a purification tower (3) is fixedly connected to the middle upper part of the bottom plate (1), an air pipe (5) is fixedly connected to the interior of the preheating box (2), the right end of the air pipe (5) is fixedly connected to the interior of the purification tower (3), two air jets (30) are fixedly connected to the lower side of the right end of the air pipe (5), a water pipe (6) is fixedly connected to the top of the preheating box (2), a water pump (7) is fixedly connected to the top of the preheating box (2), the upper end of the water pipe (6) is fixedly connected to the input end of the water pump (7), a water pipe (29) is fixedly connected to the front side of the preheating box (2), and A water pipe 2 (8) is fixedly connected to the upper left side of the purification tower (3), the left end of the water pipe 2 (8) is fixedly connected to the output end of the water pump 1 (7), the right end of the water pipe 2 (8) is fixedly connected to a water shower head (12), a distribution plate (9) is fixedly connected to the middle part of the interior of the purification tower (3), a corrugated packing layer (10) is fixedly connected to the middle part of the interior of the purification tower (3), a grid packing layer (11) is fixedly connected to the middle part of the interior of the purification tower (3), an air pipe 3 (24) is fixedly connected to the upper part of the purification tower (3), an exhaust port (25) is fixedly connected to the right end of the air pipe 3 (24), and a filter assembly is arranged on the right side of the upper part of the bottom plate (1).

2. A flue gas desulfurization reaction device according to claim 1, characterized in that: The filtering assembly comprises a motor (13), the motor (13) being fixedly connected to the middle of the bottom of the bottom plate (1), the inner bottom of the bottom plate (1) being rotatably connected to a fixing plate (14), the lower part of the fixing plate (14) being fixedly connected to the driving end of the motor (13), the left and right sides of the fixing plate (14) being fixedly connected to scraper rods (15), the upper right side of the bottom plate (1) being fixedly connected to a water pump 2 (16), the input end of the water pump 2 (16) being fixedly connected to the lower right side of the inside of the purification tower (3), the upper right side of the bottom plate (1) being fixedly connected to a recovery box ( 4), the top of the recovery box (4) is fixedly connected with a water pipe three (17), the lower left end of the water pipe three (17) is fixedly connected to the output end of the water pump two (16), the interior of the recovery box (4) is slidably connected with a screen box (22), the upper front side of the screen box (22) is provided with a pin hole (28), the interior front side of the recovery box (4) is slidably connected with a latch (18), the lower end of the latch (18) is fixedly connected with a limiting plate (21), the outer periphery of the lower end of the latch (18) is provided with a spring (20), and the lower right side of the recovery box (4) is fixedly connected with a water pipe five (26).

3. A flue gas desulfurization reaction device according to claim 1, characterized in that: The distribution plate (9) is made of glass fiber reinforced plastic.

4. A flue gas desulfurization reaction device according to claim 1, characterized in that: The corrugated packing layer (10) is made of polypropylene.

5. A flue gas desulfurization reaction device according to claim 1, characterized in that: The grid filler layer (11) is made of ceramic.

6. A flue gas desulfurization reaction device according to claim 2, characterized in that: The lower end of the latch pin (18) is slidably connected inside the pin hole (28).

7. A flue gas desulfurization reaction device according to claim 2, characterized in that: The upper end of the latch (18) is rotatably connected to a pull ring (19), and the spring (20) is located on the upper part of the limiting plate (21).

8. A flue gas desulfurization reaction device according to claim 2, characterized in that: A handle (23) is fixedly connected to the front side of the sieve box (22), and a solenoid valve (27) is fixedly connected to the middle of the water pipe 5 (26).

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