An efficient desulfurization tray for a desulfurization tower

Abstract

The present invention discloses an efficient desulfurization tray for a desulfurization tower, which includes a desulfurization tower and a slurry cylinder sleeved at its bottom. An air inlet cylinder and a chimney are respectively embedded on the side and top of the desulfurization tower. A plurality of demisting plates are arranged on the inner wall of the desulfurization tower. A plurality of water suction pipes are embedded on the side of the slurry cylinder. The end of the water suction pipe is connected to a water pump. A delivery pipe is connected to the water pump. The top of the delivery pipe is nested with an adjusting cylinder. A piston pipe is embedded at the top of the adjusting cylinder. A piston rod movably penetrates through the middle of the piston pipe. A speed reduction column that hinders the flow of the slurry is fixed at the bottom of the piston rod. A three-way pipe is embedded on the side of the adjusting cylinder. The surface of the speed reduction column in the present invention generates resistance to the flow of the slurry. The length of the speed reduction column subjected to impact is proportional to the resistance generated by it, adjusting the flow rate of the slurry. A suitable counterweight ring can be selected according to the concentration of the flue gas, so that the spraying rate of the slurry matches the concentration of the flue gas, ensuring the efficient desulfurization of the flue gas.

Description

Technical Field

[0001] The present invention relates to the technical field of desulfurization towers, and in particular to an efficient desulfurization tray for a desulfurization tower. Background Art

[0002] The desulfurization tray is a device for removing sulfur dioxide from flue gas. A slurry formed by mixing limestone and water is sprayed onto the flue gas. The slurry absorbs sulfur dioxide in the flue gas. Subsequently, the flue gas passes through a demister to remove particles in the flue gas, and then the flue gas is discharged through a chimney.

[0003] In the existing desulfurization trays, the slurry at the bottom of the desulfurization tower is transported to the tray through a water pump and sprayed out through an atomizing nozzle. The spraying efficiency of the slurry is proportional to the water pressure, and the spraying rate of the slurry cannot be adjusted, so that the slurry can efficiently and fully absorb sulfur dioxide. This often causes the water pump to do excessive work or the sulfur dioxide to be incompletely removed, resulting in many inconveniences in use. Therefore, it is necessary to provide an efficient desulfurization tray for a desulfurization tower that uses gravity to adjust the slurry flow rate to overcome the above defects. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem in the existing technology that the slurry at the bottom of the desulfurization tower is transported to the tray through a water pump and sprayed out through an atomizing nozzle. The spraying efficiency of the slurry is proportional to the water pressure, and the spraying rate of the slurry cannot be adjusted, so that the slurry can efficiently and fully absorb sulfur dioxide. This often causes the water pump to do excessive work or the sulfur dioxide to be incompletely removed, and thus an efficient desulfurization tray for a desulfurization tower is proposed.

[0005] To achieve the above purpose, the present invention adopts the following technical scheme: An efficient desulfurization tray for a desulfurization tower includes a desulfurization tower and a slurry cylinder sleeved at its bottom. An air inlet cylinder and a chimney are respectively embedded on the side and top of the desulfurization tower. A plurality of demisting plates are arranged on the inner wall of the desulfurization tower. A plurality of water suction pipes are embedded on the side of the slurry cylinder. The end of the water suction pipe is connected to a water pump, and a conveying pipe is connected to the water pump. The top of the conveying pipe is nested with an adjusting cylinder. A piston pipe is embedded at the top of the adjusting cylinder. A piston rod passes through the middle of the piston pipe movably. A speed-reducing column that hinders the flow of the slurry is fixed at the bottom of the piston rod. A three-way pipe is embedded on the side of the adjusting cylinder. The end of the three-way pipe is sleeved with an installation sleeve. A shunt pipe is nested at the end of the installation sleeve. A plurality of spraying pipes are embedded at the bottom of the shunt pipe.

[0006] Further preferably, a support disk is fixed at the top of the piston rod, a counterweight ring is movably sleeved at the top of the piston rod, a plurality of piston rings are arranged on the inner wall of the piston pipe, and an inner support ring is integrally formed on the inner wall of the piston ring.

[0007] Further preferably, a plurality of blocking rings are integrally formed on the surface of the speed reduction column, and the blocking rings are evenly distributed at equal intervals on the speed reduction column. The plurality of blocking rings increase the surface area of the speed reduction column and generate resistance to the flow of the slurry.

[0008] Further preferably, thread grooves are formed on the surface of the speed reduction column, and the thread grooves increase the surface area of the speed reduction column and generate resistance to the flow of the slurry.

[0009] Further preferably, thread strips are integrally formed on the surface of the speed reduction column, and the thread strips increase the surface area of the speed reduction column and generate resistance to the flow of the slurry.

[0010] Further preferably, a flow splitting cover is integrally formed at the bottom of the spraying pipe. A riveting ring is riveted to the bottom of the spraying pipe. Tensile steel wires are welded to the inner wall of the riveting ring, and a flow splitting block is arranged at the bottom of the tensile steel wires.

[0011] Further preferably, the tensile steel wires are spiral and the spiral diameter decreases sequentially from top to bottom. The height of the tensile steel wires is proportional to the resistance to the slurry, realizing automatic adjustment of the slurry flow rate.

[0012] Further preferably, the flow splitting cover is frustum-shaped with a flow splitting space formed in the middle, and the flow splitting block is frustum-shaped to form a gap for splitting the slurry with the flow splitting cover.

[0013] Further preferably, both the inner support ring and the piston ring are arranged in the gap between the piston rod and the piston tube. The inner edge of the inner support ring is a curved surface, and the speed reduction column passes through the middle of the inner support ring.

[0014] The beneficial effects of the present invention are as follows:

[0015] 1. The surface of the speed reduction column generates resistance to the flow of the slurry. The length of the speed reduction column subjected to impact is proportional to the resistance generated. By replacing the counterweight ring to change the gravity, the height of the speed reduction column in the adjustment cylinder is adjusted, thereby adjusting the resistance received by the slurry, and thus changing the flow rate of the slurry. A suitable counterweight ring can be selected according to the concentration of the flue gas, so that the spraying rate of the slurry matches the concentration of the flue gas, ensuring efficient desulfurization of the flue gas.

[0016] 2. The tensile steel wires are impacted by the slurry in the spraying pipe, and the flow splitting block is also impacted by the slurry at the same time. The shape of the tensile steel wires makes the length proportional to the resistance to the slurry. When the water pressure increases, the length of the tensile steel wires is stretched, and the gap between the tensile steel wires becomes larger, so that the resistance to the slurry is reduced. The spraying rate of the slurry can be adjusted in real time, enabling efficient desulfurization of the flue gas, and having the advantage of high desulfurization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 Schematic cross-sectional view of the whole of the present invention;

[0019] Figure 3 Schematic view of a partial structure of the present invention;

[0020] Figure 4 Exploded schematic view of the spraying pipe of the present invention;

[0021] Figure 5 Schematic view of the structure of the flow splitting block of the present invention;

[0022] Figure 6 Schematic view of the structure of the piston ring of the present invention;

[0023] Figure 7 Schematic view of the first embodiment of the speed reduction column of the present invention;

[0024] Figure 8 Schematic view of the second embodiment of the speed reduction column of the present invention;

[0025] Figure 9 Schematic view of the third embodiment of the speed reduction column of the present invention.

[0026] In the figure: desulfurization tower 1, slurry cylinder 2, intake cylinder 3, chimney 4, demisting plate 5, water suction pipe 6, water pump 7, conveying pipe 8, adjusting cylinder 9, piston pipe 10, piston rod 11, support plate 12, speed reduction column 13, three-way pipe 14, mounting sleeve 15, flow splitting pipe 16, spraying pipe 17, counterweight ring 18, piston ring 19, thread groove 20, thread bar 21, blocking ring 22, inner support ring 23, flow splitting cover 24, riveting ring 25, tension steel wire 26, flow splitting block 27. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Embodiment

[0028] Refer to Figures 1-7, An efficient desulfurization tray for a desulfurization tower, comprising a desulfurization tower 1 and a slurry cylinder 2 sleeved at its bottom. An air inlet cylinder 3 and a chimney 4 are respectively embedded on the side and top of the desulfurization tower 1. A plurality of demisting plates 5 are arranged on the inner wall of the desulfurization tower 1. A plurality of water suction pipes 6 are embedded on the side of the slurry cylinder 2. The end of the water suction pipe 6 is connected to a water pump 7. A delivery pipe 8 is connected to the water pump 7. A regulating cylinder 9 is nested at the top of the delivery pipe 8. A piston pipe 10 is embedded at the top of the regulating cylinder 9. A piston rod 11 movably penetrates through the middle of the piston pipe 10. A speed reduction column 13 that hinders the flow of the slurry is fixed to the bottom of the piston rod 11. A three-way pipe 14 is embedded on the side of the regulating cylinder 9. An installation sleeve 15 is sleeved at the end of the three-way pipe 14. A shunt pipe 16 is nested at the end of the installation sleeve 15. A plurality of spraying pipes 17 are embedded at the bottom of the shunt pipe 16.

[0029] Preferably, a support disk 12 is fixed to the top of the piston rod 11. A counterweight ring 18 is movably sleeved on the top of the piston rod 11. A plurality of piston rings 19 are arranged on the inner wall of the piston pipe 10. An inner support ring 23 is integrally formed on the inner wall of the piston ring 19;

[0030] During specific implementation, the counterweight ring 18 has multiple specifications. The required number and specifications of the counterweight rings 18 can be placed according to needs. The gravity of the multiple counterweight rings 18 is applied to the support disk 12, and the overall gravity of the piston rod 11, the support disk 12, and the speed reduction column 13 can be adjusted. The resistance of the speed reduction column 13 to the slurry can be adjusted according to needs, thereby adjusting the spraying rate of the slurry. The piston rod 11 moves up and down in the middle of the inner support ring 23, and the inner support ring 23 prevents slurry leakage when the piston rod 11 expands and contracts up and down.

[0031] Preferably, a shunt cover 24 is integrally formed at the bottom of the spraying pipe 17. A riveting ring 25 is riveted to the bottom of the spraying pipe 17. A tension wire 26 is welded to the inner wall of the riveting ring 25. A shunt block 27 is arranged at the bottom of the tension wire 26. The tension wire 26 is spiral-shaped and the spiral diameter decreases sequentially from top to bottom. The height of the tension wire 26 is proportional to its resistance to the slurry, realizing automatic adjustment of the slurry flow rate;

[0032] During specific implementation, the shunt block 27 and the tension wire 26 are impacted by the slurry in the spraying pipe 17. The slurry impact force stretches the tension wire 26. The shape of the tension wire 26 makes its length proportional to the resistance to the slurry. When the water pressure increases, the length of the tension wire 26 is stretched, and the gap between the tension wires 26 becomes larger, so that its resistance to the slurry decreases, and the spraying rate of the slurry can be adjusted in real time.

[0033] Preferably, the flow diverter 24 is frustum-shaped with a flow diversion space formed in the middle. The flow diversion block 27 is frustum-shaped and forms a gap for diverting the slurry with the flow diverter 24. The flow diversion block 27 moves inside the flow diverter 24, and the size of the gap between the flow diversion block 27 and the flow diverter 24 can be changed in real time, so that the efficiency of spraying the slurry in each flow diverter 24 is consistent, ensuring uniform spraying of the slurry and enabling the slurry to efficiently remove sulfur dioxide.

[0034] Preferably, both the inner support ring 23 and the piston ring 19 surround the gap between the piston rod 11 and the piston tube 10. The inner edge of the inner support ring 23 is a curved surface. The speed reduction column 13 passes through the middle of the inner support ring 23. The inner support ring 23 can reduce the contact area between the piston ring 19 and the piston rod 11, reduce the wear between the piston ring 19 and the piston rod 11, increase the service life of the piston ring 19 and the piston rod 11, and ensure the seal between the piston ring 19 and the piston rod 11 to prevent slurry leakage.

[0035] Preferably, the surface of the speed reduction column 13 is provided with a threaded groove 20, as shown in the attached Figure 7 The threaded groove 20 shown increases the surface area of the speed reduction column 13 and generates resistance to the flow of the slurry. The threaded groove 20 spirals on the surface of the speed reduction column 13. When the slurry enters the threaded groove 20, its flow direction will change, which can disrupt the flow of the slurry and generate resistance to the flow of the slurry. The length of the threaded groove 20 is proportional to the resistance it generates, and the flow rate of the slurry can be well adjusted.

[0036] Among them, when manufacturing the tension wire 26, first clamp and spiral-bend the tension wire 26 so that the tension wire 26 curls into a mosquito coil shape in a plane, and then vertically stretch one end of the tension wire 26 to form the shape shown in the attached Figure 5 The shape shown. The stretching length of the tension wire 26 is inversely proportional to the size of the gap it generates. The tension wire 26 generates resistance to the flow of the slurry and can adjust the spraying efficiency of the slurry in real time;

[0037] Among them, the bottom of the spraying pipe 17 is provided with an annular notch that fits with the riveting ring 25. First, weld the tension wire 26 to the riveting ring 25, then the riveting ring 25 can be welded into the notch of the spraying pipe 17, and finally the flow diverter 24 is welded to the spraying pipe 17, which is very convenient for the manufacturing work of the spraying pipe 17, the flow diverter 24, the riveting ring 25, the tension wire 26 and the flow diversion block 27. Embodiment

[0038] The difference from the first embodiment is as follows. Please refer to Figure 8, on the surface of the speed reduction column 13, there is an integrally formed thread strip 21. The thread strip 21 increases the surface area of the speed reduction column 13 and generates resistance to the flow of the slurry. The thread strip 21 spirals on the surface of the speed reduction column 13. The resistance of the thread strip 21 to the slurry is inclined to the direction of its flow, and the resistance to the slurry is moderate, which can be adapted to the desulfurization situation where high-speed slurry spraying is required and can be applied to the flue gas desulfurization work with high concentration of slurry. Embodiment

[0039] The difference from the first embodiment is as follows. Please refer to Figure 9 , preferably, there are a plurality of blocking rings 22 integrally formed on the surface of the speed reduction column 13. The blocking rings 22 are evenly distributed at intervals on the speed reduction column 13. The plurality of blocking rings 22 increase the surface area of the speed reduction column 13 and generate resistance to the flow of the slurry. The direction of the resistance generated by the plurality of blocking rings 22 is opposite to the direction of the flow of the slurry, which can generate a great resistance to the slurry and can be adapted to the desulfurization with a smaller concentration.

[0040] In the present invention, when in use, first, the pressure-reducing agent prepared by mixing limestone and water is poured into the slurry cylinder 2 at the bottom of the desulfurization tower 1. Secondly, the water pump 7 starts to operate to transport the slurry to the adjustment cylinder 9. The slurry flows upward in the adjustment cylinder 9. The slurry impacts the speed reduction column 13 from bottom to top, and the slurry lifts the speed reduction column 13. Subsequently, the slurry enters the three mounting sleeves 15 and the shunt pipes 16 through the three-way pipe 14 and is finally sprayed out by the spraying pipe 17. By replacing the counterweight ring 18 with a specific size, the gravity of the piston rod 11, the support disk 12 and the speed reduction column 13 is made the same as the upward thrust of the slurry on the speed reduction column 13, so that the speed reduction column 13 is stably suspended in the adjustment cylinder 9. The distance that the speed reduction column 13 is impacted by the pressure-reducing agent is determined. Then, the flue gas is injected into the desulfurization tower 1 through the air inlet cylinder 3. The flue gas is mixed with the slurry at high speed in the desulfurization tower 1, and sulfur dioxide is completely absorbed by the slurry. Subsequently, the flue gas flows between the demisting plates 5 to prevent the slurry and particles attached to the flue gas from being discharged through the chimney 4. Finally, the flue gas is discharged through the chimney 4.

[0041] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. An efficient desulfurization tower tray for a desulfurization tower, comprising a desulfurization tower (1) and a slurry cylinder (2) sleeved at its bottom. An air inlet cylinder (3) and a chimney (4) are respectively embedded on the side and top of the desulfurization tower (1). A plurality of demisting plates (5) are arranged on the inner wall of the desulfurization tower (1). A plurality of water suction pipes (6) are embedded on the side of the slurry cylinder (2). The end of the water suction pipe (6) is connected to a water pump (7), and a delivery pipe (8) is connected to the water pump (7). Characterized in that: A regulating cylinder (9) is nested at the top of the delivery pipe (8). A piston pipe (10) is embedded at the top of the regulating cylinder (9). A piston rod (11) movably penetrates through the middle of the piston pipe (10). A speed reduction column (13) that hinders the flow of slurry is fixed at the bottom of the piston rod (11). A three-way pipe (14) is embedded on the side of the regulating cylinder (9). An installation sleeve (15) is sleeved at the end of the three-way pipe (14). A shunt pipe (16) is nested at the end of the installation sleeve (15). A plurality of sprinkler pipes (17) are embedded at the bottom of the shunt pipe (16). A support disc (12) is fixed at the top of the piston rod (11). A counterweight ring (18) is movably sleeved on the top of the piston rod (11). A plurality of piston rings (19) are arranged on the inner wall of the piston pipe (10). An inner support ring (23) is integrally formed on the inner wall of the piston ring (19). By replacing the counterweight ring (18) to change the gravity, the height of the speed reduction column (13) in the regulating cylinder (9) is adjusted to adjust the resistance of the slurry, thereby changing the flow rate of the slurry.

2. The efficient desulfurization tower tray for a desulfurization tower according to claim 1, Characterized in that, A plurality of blocking rings (22) are integrally formed on the surface of the speed reduction column (13). The blocking rings (22) are spaced equidistantly on the speed reduction column (13). The plurality of blocking rings (22) increase the surface area of the speed reduction column (13) to generate resistance to the flow of the slurry.

3. The efficient desulfurization tower tray for a desulfurization tower according to claim 1, Characterized in that, Threaded grooves (20) are formed on the surface of the speed reduction column (13). The threaded grooves (20) increase the surface area of the speed reduction column (13) to generate resistance to the flow of the slurry.

4. The efficient desulfurization tower tray for a desulfurization tower according to claim 1, Characterized in that, Threaded strips (21) are integrally formed on the surface of the speed reduction column (13). The threaded strips (21) increase the surface area of the speed reduction column (13) to generate resistance to the flow of the slurry.

5. The efficient desulfurization tower tray for a desulfurization tower according to claim 4, Characterized in that, A shunt cover (24) is integrally formed at the bottom of the sprinkler pipe (17). A riveting ring (25) is riveted at the bottom of the sprinkler pipe (17). A tension steel wire (26) is welded on the inner wall of the riveting ring (25). A shunt block (27) is arranged at the bottom of the tension steel wire (26).

6. The efficient desulfurization tower tray for a desulfurization tower according to claim 5, Characterized in that, The tension steel wire (26) is spiral and the spiral diameter decreases sequentially from top to bottom. The height of the tension steel wire (26) is proportional to its resistance to the slurry, realizing automatic adjustment of the slurry flow rate.

7. The high-efficiency desulfurization tray for a desulfurization tower according to claim 5, characterized in that, the flow dividing cover (24) is frustum-shaped with a flow dividing space formed in the middle, and the flow dividing block (27) is frustum-shaped to form a gap for dividing the slurry with the flow dividing cover (24).

8. The high-efficiency desulfurization tray for a desulfurization tower according to claim 1, characterized in that, the inner support ring (23) and the piston ring (19) are both disposed around the gap between the piston rod (11) and the piston tube (10), and the inner edge of the inner support ring (23) is a curved surface.

Images