Dust removal device for thermal power generation desulfurization tower

Abstract

The dust removal device comprises a tower body, a liquid supply mechanism and a driving mechanism, a separation barrel is rotationally connected to the bottom in the tower body, a filter screen is horizontally and fixedly installed in the middle in the tower body, a brush is horizontally arranged at the bottom of the filter screen, and a distribution chamber is arranged at the top in the tower body; the bottom of the distribution chamber is communicated with a spraying head, the liquid supply mechanism is used for providing a liquid desulfurizing agent into the distribution chamber, and the driving mechanism is used for driving the separation cylinder to rotate and driving the brush to reciprocate left and right. According to the invention, large and small particle impurities in smoke dust can be removed, desulfurization treatment can be carried out, the smoke dust treatment effect is better, water resources are not required to be wasted for spraying treatment, and the situation that generated wastewater is more difficult to treat is avoided; impurities filtered out from the bottom of the filter screen can be swept away, the situation that the impurities block meshes and affect the filtering efficiency is avoided, manual cleaning is not needed, and time and labor are saved.

Description

Technical Field

[0001] The invention relates to the technical field of thermal power generation, and in particular to a dust removal device for a thermal power generation desulfurization tower. Background Art

[0002] Thermal power generation is a method of generating electricity by using the heat energy generated by the combustion of combustibles and converting it into electrical energy through a power generation device. A large amount of smoke will be generated during thermal power generation. If this smoke is directly discharged into the air, it will not be able to circulate, so it is necessary to use a dust removal device to treat this smoke before discharging it. The desulfurization tower of thermal power generation is a device used to reduce the concentration of sulfur dioxide in the flue gas of power plants. Sulfur dioxide is a major air pollutant and is usually released into the atmosphere by burning sulfur-containing fuels (such as coal). The main function of the desulfurization tower is to remove sulfur dioxide from the flue gas, thereby reducing pollution to the environment.

[0003] When the dust removal device of the existing thermal power generation desulfurization tower is in use, the direct wet absorption purification method wastes water resources, and the wastewater generated in the process is more difficult to treat, and the treatment effect needs to be improved. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a dust removal device for a thermal power generation desulfurization tower.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A dust removal device for a thermal power generation desulfurization tower, comprising: a tower body, a separation cylinder is rotatably connected to the bottom of the tower body, a filter screen is horizontally fixedly installed in the middle of the tower body, a brush is horizontally arranged at the bottom of the filter screen, a distribution chamber is arranged at the top of the tower body, and a spray head is connected to the bottom of the distribution chamber;

[0007] A liquid supply mechanism, the liquid supply mechanism is used to provide liquid desulfurization agent into the distribution chamber;

[0008] The driving mechanism is used to drive the separation cylinder to rotate and the brush to move back and forth.

[0009] The smoke dust from which large particles of impurities are separated by a cyclone is then filtered out of small particles of impurities through a filter, and finally undergoes a desulfurization treatment. This not only removes large and small particles of impurities in the smoke dust, but also allows for desulfurization treatment, which has a better effect on the treatment of smoke dust and does not require wasting water resources for spraying treatment, thus avoiding the generation of wastewater that is more difficult to treat.

[0010] As a further technical solution of the present invention, a controller is fixedly installed on the upper side of the outer side of the tower body, a side door is hinged on the lower side of the outer side, and support legs are vertically welded to the four corners of the bottom of the tower body.

[0011] As a further technical solution of the present invention, an air inlet pipe vertically penetrates the center of the bottom of the tower body, the air inlet pipe is connected to the center of the bottom of the separation cylinder, the air inlet pipe and the separation cylinder are rotatably connected, and an air outlet pipe is horizontally connected to one side of the outside of the tower body.

[0012] As a further technical solution of the present invention, the top of the separation cylinder is covered with a top cover, and the top of the outer periphery of the separation cylinder is provided with an air outlet. There are multiple air outlets and they are evenly distributed along the circumference at the top of the outer periphery of the separation cylinder. There are multiple spray heads and they are distributed in a rectangular array at the bottom of the distribution chamber.

[0013] As a further technical solution of the present invention, the liquid supply mechanism includes a liquid pump, which is fixedly installed on the top of one side of the outside of the tower body. The liquid inlet and liquid outlet of the liquid pump are respectively connected to a liquid pumping pipe and a liquid outlet pipe, the other end of the liquid outlet pipe is connected to the distribution chamber, and the other end of the liquid pumping pipe is connected to the liquid desulfurizer.

[0014] Start the liquid pump to extract liquid desulfurizer through the liquid extraction pipe, enter the distribution chamber through the liquid outlet pipe, and then evenly distribute it to multiple spray heads and spray it into the smoke inside the tower body, where it dries and reacts to generate solid by-products, thereby desulfurizing the smoke.

[0015] As a further technical solution of the present invention, the driving mechanism includes a rotating motor, which is horizontally fixedly installed on one side of the outside of the tower body, and a rotating shaft is horizontally fixedly installed on the output end of the rotating motor. A gear ring is welded on the outer periphery of the separation cylinder, and a driving gear is meshed on the side of the gear ring. A driven shaft is vertically welded at the bottom of the driving gear, and the bottom end of the driven shaft is rotatably connected to the bottom of the tower body, a driven bevel gear is welded on the driven shaft, and a driving bevel gear is meshed on the side of the driven bevel gear. A driving shaft is horizontally welded at the center of the driving bevel gear, and the other end of the driving shaft extends out of the interior of the tower body and is rotatably connected to the tower body, and the same belt is connected between the driving shaft and the rotating shaft.

[0016] The rotating motor is started to drive the rotating shaft to rotate, the rotating shaft drives the driving shaft to rotate through the belt, the driving shaft drives the driven shaft to rotate through the driving bevel gear and the driven bevel gear, the driven shaft drives the driving gear to rotate, the driving gear drives the separation cylinder to rotate through the gear ring, so as to perform cyclone separation on the smoke and dust inside the separation cylinder, and the large particles of impurities are thrown onto the inner wall of the separation cylinder due to the centrifugal force, so that the large particles of impurities in the smoke and dust can be preliminarily removed.

[0017] As a further technical solution of the present invention, a screw is horizontally rotatably connected to one side of the interior of the tower body, one end of the brush is sleeved on the screw, the brush and the screw are connected by a thread, one end of the screw extends out of the interior of the tower body and is welded with a pinion, a large disk is provided on the outside of the pinion, a circular groove is provided on the inside of the large disk, a small disk is welded at the center of the circular groove, the center of the small disk is welded to the end of the rotating shaft, a plurality of inner convex teeth are welded to part of the inner wall of the circular groove, a plurality of outer convex teeth are welded to part of the outer circumference of the small disk, and the plurality of inner convex teeth and the plurality of outer convex teeth are meshed with the pinion in sequence.

[0018] The rotating shaft drives the small disc to rotate, and the small disc drives the large disc to rotate together. The multiple inner convex teeth inside the circular groove first mesh with the small gear to drive the small gear to rotate forward. The small gear drives the lead screw to rotate forward, which drives the brush to move right on the lead screw. When the multiple inner convex teeth are engaged, the multiple outer convex teeth on the outer wall of the small disc mesh with the small gear to drive the small gear to rotate in the opposite direction. Similarly, the brush is driven to move left on the lead screw. The small disc and the large disc keep rotating, which drives the brush to move back and forth left and right on the lead screw, so that the brush can sweep away the impurities filtered out at the bottom of the filter to prevent impurities from clogging the mesh and affecting the filtration efficiency. There is no need for manual cleaning, saving time and effort.

[0019] The beneficial effects of the present invention are as follows: not only can large and small particle impurities in smoke be removed, but also desulfurization treatment can be performed, which has a better treatment effect on smoke, and there is no need to waste water resources for spraying treatment, thus avoiding the generation of wastewater that is more difficult to treat; impurities filtered out at the bottom of the filter can be swept away to avoid impurities clogging the mesh and affecting the filtration efficiency, and there is no need for manual cleaning, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a dust removal device for a thermal power generation desulfurization tower proposed by the present invention;

[0021] Figure 2 A schematic diagram of the side view of a dust removal device for a thermal power generation desulfurization tower proposed by the present invention Figure 1 ;

[0022] Figure 3 A schematic diagram of the side view of a dust removal device for a thermal power generation desulfurization tower proposed by the present invention Figure 2 ;

[0023] Figure 4 A schematic cross-sectional view of a dust removal device for a thermal power generation desulfurization tower proposed by the present invention;

[0024] Figure 5 A schematic diagram of the partial structure of a dust removal device for a thermal power generation desulfurization tower proposed by the present invention Figure 1;

[0025] Figure 6 A schematic diagram of the partial structure of a dust removal device for a thermal power generation desulfurization tower proposed by the present invention Figure 2 .

[0026] In the figure: 1. controller; 2. tower body; 3. side door; 4. supporting leg; 5. air inlet pipe; 6. air outlet pipe; 7. liquid outlet pipe; 8. liquid pump; 9. liquid pump; 10. screw rod; 11. large disc; 12. rotating motor; 13. belt; 14. driving shaft; 15. circular groove; 16. small disc; 17. filter screen; 18. brush; 19. air outlet; 20. gear ring; 21. separation cylinder; 22. sprinkler head; 23. distribution chamber; 24. top cover; 25. driven shaft; 26. driven bevel gear; 27. driving bevel gear; 28. driving gear; 29. ​​rotating shaft; 30. outer convex teeth; 31. small gear; 32. inner convex teeth. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0028] Please refer to the attached Figure 1 -Attached Figure 6 A dust removal device for a thermal power generation desulfurization tower comprises: a tower body 2, a separation cylinder 21 is rotatably connected to the bottom of the tower body 2, a filter screen 17 is horizontally fixedly installed in the middle of the tower body 2, a brush 18 is horizontally arranged at the bottom of the filter screen 17, a distribution chamber 23 is arranged at the top of the tower body 2, and a spray head 22 is connected to the bottom of the distribution chamber 23;

[0029] A liquid supply mechanism, which is used to supply liquid desulfurizing agent into the distribution chamber 23;

[0030] The driving mechanism is used to drive the separation cylinder 21 to rotate and the brush 18 to move back and forth.

[0031] Please refer to the attached Figure 1-6 In a preferred embodiment, a controller 1 is fixedly installed on the upper side of the outer side of the tower body 2, a side door 3 is hinged on the lower side of the outer side, and support legs 4 are vertically welded at the four corners of the bottom of the tower body 2. The controller 1 controls the operation of all electrical equipment, and the side door 3 can be opened to clean the impurities separated from the smoke in the tower body and the solid by-products generated during desulfurization.

[0032] Please refer to the attached Figure 1-6In a preferred embodiment, an air inlet pipe 5 is vertically passed through the center of the bottom of the tower body 2, the air inlet pipe 5 is connected to the center of the bottom of the separation cylinder 21, the air inlet pipe 5 and the separation cylinder 21 are rotatably connected, and an air outlet pipe 6 is horizontally connected to one side of the outside of the tower body 2. The smoke is passed into the separation cylinder 21 from the air inlet pipe 5, and a valve is installed on the air outlet pipe 6. When the smoke is processed, the valve is opened to discharge the processed smoke from the air outlet pipe 6.

[0033] Please refer to the attached Figure 1-6 In a preferred embodiment, the top of the separation cylinder 21 is covered with a top cover 24, and the top of the outer periphery of the separation cylinder 21 is provided with an air outlet 19, and a plurality of air outlets 19 are provided and evenly distributed along the circumference of the top of the outer periphery of the separation cylinder 21, and a plurality of spray heads 22 are provided and distributed in a rectangular array at the bottom of the distribution chamber 23. The top cover 24 can be opened to clean the impurities inside the separation cylinder 21, and the smoke and dust separated from the large particles of impurities are discharged from the air outlet 19 to the inside of the tower body 2.

[0034] Please refer to the attached Figure 1-6 In a preferred embodiment, the liquid supply mechanism includes a liquid pump 8, which is fixedly installed on the top of one side of the outside of the tower body 2. The liquid inlet and liquid outlet of the liquid pump 8 are respectively connected to a liquid pumping pipe 9 and a liquid outlet pipe 7. The other end of the liquid outlet pipe 7 is connected to the distribution chamber 23, and the other end of the liquid pumping pipe 9 is connected to the liquid desulfurizer.

[0035] Please refer to the attached Figure 1-6 In a preferred embodiment, the driving mechanism includes a rotating motor 12, which is horizontally fixedly installed on one side of the outside of the tower body 2, a rotating shaft 29 is horizontally fixedly installed on the output end of the rotating motor 12, and a gear ring 20 is welded on the outer periphery of the separation cylinder 21.

[0036] Please refer to the attached Figure 1-6 In a preferred embodiment, a driving gear 28 is meshed on the side of the gear ring 20, a driven shaft 25 is vertically welded to the bottom of the driving gear 28, the bottom end of the driven shaft 25 is rotatably connected to the bottom of the tower body 2, and a driven bevel gear 26 is welded to the driven shaft 25.

[0037] Please refer to the attached Figure 1-6 In a preferred embodiment, a driving bevel gear 27 is meshed on the side of the driven bevel gear 26, and a driving shaft 14 is horizontally welded at the center of the driving bevel gear 27. The other end of the driving shaft 14 extends out of the tower body 2 and is rotatably connected to the tower body 2. The same belt 13 is connected between the driving shaft 14 and the rotating shaft 29.

[0038] Please refer to the attached Figure 1-6In a preferred embodiment, a screw rod 10 is horizontally rotatably connected to one side of the tower body 2, one end of the brush 18 is sleeved on the screw rod 10, the brush 18 and the screw rod 10 are connected by threads, one end of the screw rod 10 extends out of the tower body 2 and is welded with a small gear 31, a large disc 11 is provided on the outside of the small gear 31, and a circular groove 15 is opened on the inside of the large disc 11.

[0039] Please refer to the attached Figure 1-6 In a preferred embodiment, a small disc 16 is welded at the center of the circular groove 15, the center of the small disc 16 is welded to the end of the rotating shaft 29, a plurality of inner convex teeth 32 are welded at a part of the inner wall of the circular groove 15, a plurality of outer convex teeth 30 are welded at a part of the outer periphery of the small disc 16, and the plurality of inner convex teeth 32 and the plurality of outer convex teeth 30 are meshed with the pinion 31 in sequence.

[0040] From the above description, it can be seen that the above embodiment of the present invention achieves the following technical effects: the rotating motor 12 is started to drive the rotating shaft 29 to rotate, the rotating shaft 29 drives the driving shaft 14 to rotate through the belt 13, the driving shaft 14 drives the driven shaft 25 to rotate through the driving bevel gear 27 and the driven bevel gear 26, the driven shaft 25 drives the driving gear 28 to rotate, the driving gear 28 drives the separation cylinder 21 to rotate through the gear ring 20, so as to perform cyclone separation on the smoke inside the separation cylinder 21, and the large particles of impurities are thrown onto the inner wall of the separation cylinder 21 due to the centrifugal force, so that the large particles of impurities in the smoke can be preliminarily removed;

[0041] The smoke dust from which large particles of impurities are separated by the cyclone is then filtered out of small particles of impurities by the filter 17, and then the liquid pump 8 is started to extract the liquid desulfurizer through the liquid extraction pipe 9, and the liquid desulfurizer enters the distribution chamber 23 through the liquid outlet pipe 7, and then is evenly distributed to the multiple spray heads 22 to be sprayed into the smoke dust inside the tower body 2, and is dried and reacted in the tower body 2 to generate solid by-products, thereby desulfurizing the smoke dust, which can not only remove large and small particles of impurities in the smoke dust, but also perform desulfurization treatment, and has a better treatment effect on the smoke dust, and does not need to waste water resources for spraying treatment, thereby avoiding the generation of wastewater that is more difficult to treat;

[0042] The rotating shaft 29 drives the small disc 16 to rotate, and the small disc 16 drives the large disc 11 to rotate together. The multiple inner convex teeth 32 inside the circular groove 15 first mesh with the small gear 31 to drive the small gear 31 to rotate forwardly. The small gear 31 drives the screw rod 10 to rotate forwardly, which drives the brush 18 to move rightward on the screw rod 10. When the multiple inner convex teeth 32 are engaged, the multiple outer convex teeth 30 on the outer wall of the small disc 16 mesh with the small gear 31 again to drive the small gear 31 to rotate in the opposite direction. Similarly, the brush 18 is driven to move leftward on the screw rod 10. The small disc 16 and the large disc 11 rotate continuously, thereby driving the brush 18 to move back and forth left and right on the screw rod 10, so that the brush 18 can sweep the impurities filtered out at the bottom of the filter screen 17 to avoid impurities clogging the mesh and affecting the filtration efficiency, and no manual cleaning is required, saving time and effort.

[0043] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0044] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the claims. Therefore, any omissions, 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 dust removal device for a thermal power generation desulfurization tower, It is characterized in that include: A tower body (2), wherein a separation cylinder (21) is rotatably connected to the bottom of the tower body (2), a filter screen (17) is horizontally fixedly installed in the middle of the tower body (2), a brush (18) is horizontally arranged at the bottom of the filter screen (17), a distribution chamber (23) is arranged at the top of the tower body (2), and a spray head (22) is connected to the bottom of the distribution chamber (23); A liquid supply mechanism, the liquid supply mechanism being used to supply liquid desulfurizing agent into the distribution chamber (23); A driving mechanism is used to drive the separation cylinder (21) to rotate and the brush (18) to move back and forth.

2. A dust removal device for a thermal power generation desulfurization tower according to claim 1, It is characterized in that A controller (1) is fixedly mounted on the upper part of one side of the exterior of the tower body (2), a side door (3) is hingedly mounted on the lower part of the exterior, and support legs (4) are vertically welded to the four corners of the bottom of the tower body (2).

3. A dust removal device for a thermal power generation desulfurization tower according to claim 1, It is characterized in that An air inlet pipe (5) vertically penetrates the center of the bottom of the tower body (2); the air inlet pipe (5) is connected to the center of the bottom of the separation cylinder (21); the air inlet pipe (5) and the separation cylinder (21) are rotatably connected; and an air outlet pipe (6) is horizontally connected to one side of the outside of the tower body (2).

4. A dust removal device for a thermal power generation desulfurization tower according to claim 1, It is characterized in that The top of the separation cylinder (21) is covered with a top cover (24), the top of the outer periphery of the separation cylinder (21) is provided with an air outlet (19), a plurality of the air outlet holes (19) are provided and are evenly distributed along the circumference of the top of the outer periphery of the separation cylinder (21), and a plurality of the spray heads (22) are provided and are distributed in a rectangular array at the bottom of the distribution chamber (23).

5. A dust removal device for a thermal power generation desulfurization tower according to claim 1, It is characterized in that The liquid supply mechanism comprises a liquid pump (8), the liquid pump (8) being fixedly mounted on the top of one side outside the tower body (2), the liquid inlet and the liquid outlet of the liquid pump (8) being respectively connected to a liquid pumping pipe (9) and a liquid outlet pipe (7), the other end of the liquid outlet pipe (7) being connected to a distribution chamber (23), and the other end of the liquid pumping pipe (9) being connected to a liquid desulfurizing agent.

6. A dust removal device for a thermal power generation desulfurization tower according to claim 1, It is characterized in that The driving mechanism comprises a rotating motor (12), the rotating motor (12) being fixedly mounted horizontally on one side of the outside of the tower body (2), a rotating shaft (29) being fixedly mounted horizontally on the output end of the rotating motor (12), and a gear ring (20) being welded to the outer periphery of the separation cylinder (21).

7. A dust removal device for a thermal power generation desulfurization tower according to claim 6, It is characterized in that A driving gear (28) is meshed on the side of the gear ring (20), a driven shaft (25) is vertically welded to the bottom of the driving gear (28), the bottom end of the driven shaft (25) is rotatably connected to the inner bottom of the tower body (2), and a driven bevel gear (26) is welded to the driven shaft (25).

8. A dust removal device for a thermal power generation desulfurization tower according to claim 7, It is characterized in that The driven bevel gear (26) is meshed with a driving bevel gear (27) on its side, a driving shaft (14) is horizontally welded at the center of the driving bevel gear (27), the other end of the driving shaft (14) extends out of the tower body (2) and is rotatably connected to the tower body (2), and a belt (13) is connected between the driving shaft (14) and the rotating shaft (29).

9. A dust removal device for a thermal power generation desulfurization tower according to claim 8, It is characterized in that A screw rod (10) is horizontally rotatably connected to one side of the tower body (2), one end of the brush (18) is sleeved on the screw rod (10), the brush (18) and the screw rod (10) are connected by threads, one end of the screw rod (10) extends out of the tower body (2) and is welded with a small gear (31), a large disc (11) is arranged on the outside of the small gear (31), and a circular groove (15) is arranged on the inside of the large disc (11).

10. A dust removal device for a thermal power generation desulfurization tower according to claim 9, It is characterized in that A small disc (16) is welded at the center of the circular groove (15), and the center of the small disc (16) is welded to the end of the rotating shaft (29). A plurality of inner convex teeth (32) are welded at a part of the inner wall of the circular groove (15), and a plurality of outer convex teeth (30) are welded at a part of the outer periphery of the small disc (16), and the plurality of inner convex teeth (32) and the plurality of outer convex teeth (30) are meshed with the pinion (31) in sequence.

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