Waste gas spray tower

Abstract

The utility model relates to the technical field of spray towers, in particular to a waste gas spray tower, which is characterized in that a gas inlet is arranged at the top of a desulfurization tower, a spray mechanism is arranged in the desulfurization tower, a spray pipe is arranged between two adjacent filter plates, a plurality of atomizing nozzles are arranged on the spray pipe along the length direction, and the desulfurization tower is further provided with a liquid supply device. The liquid supply device comprises an internal liquid supply pipe, the internal liquid supply pipe is provided with a rotatable liquid supply seat along the way, the spraying pipes are mounted at the two ends of the liquid supply seat respectively, and the other ends of the spraying pipes extend towards the inner wall of the desulfurization tower in the radial direction; waste gas needing to be filtered enters the desulfurizing tower through a gas inlet in the top of the spraying tower and sequentially passes through the multiple filtering plates, when passing through the filtering plates, the spraying mechanism located below the filtering plates can spray atomized mixed liquid medicine, and the spraying pipe rotationally connected with the internal liquid supply pipe through the liquid supply base can transversely rotate in the desulfurizing tower; and the atomized liquid medicine sprayed by the spraying pipe can cover more areas and is mixed with the passing waste gas, so that the waste gas can be purified.

Description

Technical Field

[0001] This utility model relates to the field of spray tower technology, and in particular to waste gas spray tower. Background Technology

[0002] A spray tower is a device for treating industrial waste gas. Industrial waste gas is a general term for various pollutant gases emitted into the air during fuel combustion and production processes within a factory. These waste gases include carbon dioxide, carbon disulfide, hydrogen sulfide, fluorides, nitrogen oxides, chlorine, hydrogen chloride, carbon monoxide, etc. Direct emission into the air will cause significant air pollution, so waste gas treatment is required before emission to meet standards.

[0003] Existing patent number CN 214159155 U discloses a rotary spray desulfurization tower and a desulfurization box. The bottom of the desulfurization tower stores desulfurization liquid, and a rotatable connecting pipe is provided in the middle of the desulfurization tower. Multiple spray mechanisms connected to the connecting pipe are arranged from top to bottom. Each spray mechanism includes multiple spray pipes, and multiple spray holes are provided on one side of the bottom of each spray pipe. The spray pipes are centrally symmetrically distributed on the outside of the connecting pipe. A fixed support rod is provided at the bottom of the connecting pipe. The bottom of the support rod is movably connected to the bottom of the desulfurization tower. Multiple fixed fan blades are provided on the support rod located on the side of the air inlet pipe, which effectively ensures the rotation of the connecting pipe, thereby enabling the spray pipes to rotate and spray, making the spray liquid distribution more uniform and ensuring the overall desulfurization effect.

[0004] The existing spray pipes are all fixed inside the desulfurization tower. The spray pipes are arranged radially and are fixed, which limits the spraying area and the purification effect. Utility Model Content

[0005] The purpose of this invention is to provide a waste gas spray tower that addresses the shortcomings of existing technologies.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] The exhaust gas scrubbing tower includes a desulfurization tower. The desulfurization tower has an air inlet at the top and an air outlet at the bottom. Multiple filter plates for exhaust gas are arranged at intervals inside the tower. A scrubbing mechanism is installed inside the tower, with a scrubbing pipe between adjacent filter plates. The scrubbing pipe has multiple atomizing nozzles along its length. The desulfurization tower also includes a liquid supply device, which includes an internal liquid supply pipe axially arranged within the tower. Rotatable liquid supply seats are installed along the internal liquid supply pipe, and scrubbing pipes are installed at both ends of the liquid supply seats. The other end of the scrubbing pipe extends radially towards the inner wall of the desulfurization tower. A swing mechanism that cooperates with the scrubbing pipes is installed on the side wall of the desulfurization tower. This swing mechanism can drive the liquid supply seats and the internal liquid supply pipe to rotate and cooperate.

[0008] Furthermore, the liquid supply device also includes a liquid supply pump located outside the desulfurization tower and an external liquid supply pipe connected to the outlet of the liquid supply pump. A horizontally arranged diverting liquid supply pipe is connected to the top of the external liquid supply pipe, and the inner end of the diverting liquid supply pipe is connected to the top of the internal liquid supply pipe.

[0009] Furthermore: the filter plate has a central through hole for the internal liquid supply pipe to pass through, and the desulfurization tower is equipped with a support base for supporting the filter plate.

[0010] Furthermore: multiple bidirectional flow rotary joints are installed at intervals along the internal liquid supply pipe, and the rotary joints are radially formed with lateral joints.

[0011] Furthermore: the rotary joint is fitted with a liquid supply seat, and a liquid supply cavity for liquid flow is formed inside the liquid supply seat. The side connector of the rotary joint is connected to the liquid supply cavity inside the liquid supply seat, and the inner end of the spray pipe is connected to the liquid supply cavity inside the liquid supply seat.

[0012] Furthermore: a support sleeve is provided at the bottom of the liquid supply chamber and fitted inside the liquid supply tube. The top of the support sleeve is formed with multiple concave rolling grooves, and bottom guide balls are installed in the rolling grooves. The bottom surface of the liquid supply seat rolls in cooperation with the bottom guide balls.

[0013] Furthermore: the swing mechanism includes a drive groove formed on the inner wall of the desulfurization tower, a drive gear arranged laterally installed in the drive groove, an arc-shaped drive rack installed at the outer end of the spray pipe, the drive rack and the drive gear being laterally aligned, and the drive rack and the drive gear engaging in transmission.

[0014] Furthermore: there are multiple drive slots, and the inner wall of the desulfurization tower is formed with longitudinal axial slots. The axial slots are connected to the drive slots, and two adjacent drive slots are longitudinally aligned. A rotatable drive shaft is arranged in the axial slot, and the drive gear located in the drive slot is sleeved on the drive shaft.

[0015] Furthermore: the outer ends of one or more of the spray pipes are connected to the middle of the drive rack, the outer ends of one or more of the spray pipes are connected to the left end of the drive rack, and the outer ends of one or more of the spray pipes are connected to the right end of the drive rack.

[0016] The beneficial effects of this utility model are as follows: The waste gas to be filtered enters the desulfurization tower through the air inlet at the top of the spray tower, and passes through multiple filter plates in sequence. When passing through the filter plates, the spraying mechanism located below the filter plates will spray atomized mixed liquid. The spray pipe, which is rotatably connected to the internal liquid supply pipe through the liquid supply seat, can rotate laterally inside the desulfurization tower, so that the atomized liquid sprayed by the spray pipe can cover more areas and mix with the waste gas, so that the waste gas can be purified. Then it is discharged from the air outlet at the bottom of the desulfurization tower. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an exhaust gas spray tower.

[0018] Figure 2 This is a schematic diagram of the internal structure of the exhaust gas spray tower.

[0019] Figure 3 This is a schematic diagram of the connection between the internal liquid supply pipe and the rotary joint.

[0020] Figure 4 This is a schematic diagram of the swing mechanism.

[0021] The reference numerals in the figures include:

[0022] 1-Desulfurization tower,

[0023] 11-Air inlet, 12-Air outlet, 13-Liquid supply device, 14-Liquid supply pump, 15-External liquid supply pipe

[0024] 16-Diverting liquid supply pipe, 17-Filter plate, 18-Central through hole, 19-Support base,

[0025] 2-Spraying mechanism,

[0026] 21-Internal supply pipe, 22-Rotary joint, 23-Side joint, 24-Supply base, 25-Supply chamber

[0027] 26-Spray pipe, 27-Atomizing nozzle, 28-Support sleeve, 29-Guide ball bearing,

[0028] 3-Swing mechanism

[0029] 31-Drive slot, 32-Drive gear, 33-Drive rack, 34-Axial slot, 35-Drive shaft

[0030] 36 - Sealing ring, 37 - Motor mount. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the accompanying drawings.

[0032] like Figure 1-4As shown, the exhaust gas scrubbing tower includes a desulfurization tower 1. The top of the desulfurization tower 1 is provided with an air inlet 11, and the bottom of the desulfurization tower 1 is provided with an air outlet 12. Multiple filter plates 17 for exhaust gas to pass through are arranged at intervals inside the desulfurization tower 1. A scrubbing mechanism 2 is provided inside the desulfurization tower 1. A scrubbing pipe 26 is provided between two adjacent filter plates 17. Multiple atomizing nozzles 27 are provided along the length of the scrubbing pipe 26. The desulfurization tower 1 is also provided with a liquid supply device 13. The liquid supply device 13 includes an internal liquid supply pipe 21 arranged axially inside the desulfurization tower 1. A rotatable liquid supply seat 24 is provided along the internal liquid supply pipe 21. The scrubbing pipe 26 is installed at both ends of the liquid supply seat 24. The other end of the scrubbing pipe 26 extends radially toward the inner wall of the desulfurization tower 1. A swing mechanism 3 that cooperates with the scrubbing pipe 26 is provided on the side wall of the desulfurization tower 1. The swing mechanism 3 can drive the liquid supply seat 24 and the internal liquid supply pipe 21 to rotate and cooperate.

[0033] The exhaust gas that needs to be filtered enters the desulfurization tower 1 through the air inlet 11 at the top of the spray tower, and passes through multiple filter plates 17 in sequence. When passing through the filter plates 17, the spray mechanism 2 located below the filter plates 17 will spray atomized mixed liquid. The spray pipe 26, which is rotatably connected to the internal liquid supply pipe 21 through the liquid supply seat 24, can rotate laterally inside the desulfurization tower 1, so that the atomized liquid sprayed by the spray pipe 26 can cover more areas and mix with the exhaust gas, so that the exhaust gas can be purified. Then it is discharged from the air outlet 12 at the bottom of the desulfurization tower 1.

[0034] Specifically, the liquid supply device 13 also includes a liquid supply pump 14 located outside the desulfurization tower 1 and an external liquid supply pipe 15 connected to the outlet of the liquid supply pump 14. The top of the external liquid supply pipe 15 is connected to a horizontally arranged diverting liquid supply pipe 16, and the inner end of the diverting liquid supply pipe 16 is connected to the top of the internal liquid supply pipe 21. The liquid supply pump 14 supplies the liquid to the internal liquid supply pipe 21 through the external liquid supply pipe 15 and the diverting liquid supply pipe 16. A support column is installed at the bottom of the internal liquid supply pipe 21, and the bottom of the support column is connected to the inner bottom wall of the desulfurization tower 1 to achieve longitudinal support for the internal liquid supply pipe 21, prevent the internal liquid supply pipe 21 from shifting, and ensure the stability of the liquid supply.

[0035] Furthermore, the filter plate 17 has a central through hole 18 for the internal liquid supply pipe 21 to pass through, and a support base 19 for supporting the filter plate 17 is provided inside the desulfurization tower 1; two adjacent filter plates 17 are arranged in parallel and spaced apart, and the filter plates 17 are installed in the desulfurization tower 1 through the support base 19. When the exhaust gas flows from top to bottom, it passes through the filter plates 17 in sequence, and the exhaust gas can be filtered and purified; and the central through hole 18 can limit and position the internal liquid supply pipe 21 after it is matched with the internal liquid supply pipe 21.

[0036] Specifically, the internal liquid supply pipe 21 is equipped with multiple bidirectional flow-type rotary joints 22 at intervals along its length. Each rotary joint 22 has a radially formed lateral joint 23. A liquid supply seat 24 is fitted over the rotary joint 22, and a liquid supply chamber 25 for liquid flow is formed inside the liquid supply seat 24. The lateral joints 23 of the rotary joint 22 communicate with the liquid supply chamber 25 inside the liquid supply seat 24, and the inner end of the spray pipe 26 communicates with the liquid supply chamber 25 inside the liquid supply seat 24. When the liquid in the internal supply pipe 21 passes through the rotary joint 22, a portion of the liquid will enter the supply chamber 25 of the supply seat 24 through the side joint 23. Then, the liquid will be introduced into the spray pipe 26 through the supply chamber 25. Since the rotary joint 22 is bidirectional, the internal supply pipe 21 can remain stationary. When the spray pipe 26 swings laterally, the rotary joint 22 can rotate with the spray pipe 26 and maintain a certain degree of sealing, so that the water pressure in the spray pipe 26 remains stable and the liquid sprayed from the atomizing nozzle 27 remains atomized.

[0037] It should be noted that the two ends of the rotary joint 22 are rotatably connected to the internal liquid supply pipe 21, and a sealing effect is maintained during rotation. The bidirectional flow rotary joint 22 is a common pipe joint on the market. The specific structure of the rotary joint 22 will not be described in detail here. Based on the original design, this solution adds a lateral connector 23 radially to the rotary joint 22, so that a portion of the liquid inside the rotary joint 22 can flow into the liquid supply chamber 25 through the lateral connector 23.

[0038] Preferably, the bottom of the liquid supply chamber 25 is provided with a support sleeve 28 that fits over the internal liquid supply pipe 21. The top of the support sleeve 28 is formed with multiple concave rolling grooves, and bottom guide balls 29 are installed in the rolling grooves. The bottom surface of the liquid supply seat 24 rolls in engagement with the bottom guide balls 29. When the liquid supply seat 24 rotates, the bottom of the liquid supply seat 24 rolls in engagement with the guide balls 29 on the top of the support sleeve 28. This supports the liquid supply seat 24 and prevents it from shifting axially along the internal liquid supply pipe 21.

[0039] Furthermore, the oscillating mechanism 3 includes a drive groove 31 formed on the inner wall of the desulfurization tower 1. A horizontally arranged drive gear 32 is installed in the drive groove 31. An arc-shaped drive rack 33 is installed at the outer end of the spray pipe 26. The drive rack 33 is horizontally aligned with the drive gear 32, and the drive rack 33 meshes with the drive gear 32 for transmission. When the drive gear 32 rotates, it meshes with the drive rack 33 at the outer end of the spray pipe 26, enabling the spray pipe 26 to oscillate laterally through the cooperation of the liquid supply seat 24 and the rotary joint 22. That is, the rotary joint 22 rotates with the internal liquid supply pipe 21, and the atomizing nozzle 27 installed on the spray pipe 26 can be positioned differently, achieving multi-area spraying, covering a wider area, and resulting in a more significant spray purification effect.

[0040] Preferably, there are multiple drive grooves 31. The inner wall of the desulfurization tower 1 is formed with a longitudinal axial groove 34, which is connected to the drive groove 31. Two adjacent drive grooves 31 are longitudinally aligned. A rotatable drive shaft 35 is arranged in the axial groove 34. The drive gear 32 located in the drive groove 31 is sleeved on the drive shaft 35. In this embodiment, one drive shaft 35 is used to synchronously drive all drive gears 32 to rotate at the same time. All drive gears 32 can synchronously rotate and mesh with the corresponding drive rack 33 to realize the lateral swing of the spray pipe 26.

[0041] It should be noted that a sealing ring 36 is provided between the axial groove 34 and the drive groove 31, so the exhaust gas of the drive groove 31 will not leak out. Even if the sealing ring 36 increases the friction of the drive shaft 35, the speed requirement of the drive shaft 35 is low in this solution, so even if there is friction, it will not affect the rotation of the drive shaft 35.

[0042] It should be noted that a motor base 37 is provided on the outer wall of the desulfurization tower 1, and a drive motor is installed on the motor base 37. A transmission connection structure is provided between the drive end of the drive motor and the drive shaft 35. The transmission connection structure can be a synchronous belt structure or a gear and rack structure. Under the drive of the drive motor, the drive shaft 35 can rotate in the axial groove 34 to achieve drive.

[0043] Preferably, one or more of the spray pipes 26 have their outer ends connected to the middle of the drive rack 33, one or more of the spray pipes 26 have their outer ends connected to the left side of the drive rack 33, and one or more of the spray pipes 26 have their outer ends connected to the right side of the drive rack 33. Each spray pipe 26 is arranged at a different angle, and multiple spray pipes 26 arranged at different angles can further cover more areas when oscillating laterally, achieving efficient spraying.

[0044] In summary, this utility model possesses the aforementioned excellent characteristics, enabling it to achieve unprecedented efficiency in use and thus become a highly practical product.

[0045] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A waste gas scrubbing tower, comprising a desulfurization tower, wherein an air inlet is provided at the top of the desulfurization tower, an air outlet is provided at the bottom of the desulfurization tower, multiple filter plates for waste gas to pass through are arranged at intervals inside the desulfurization tower, a scrubbing mechanism is provided inside the desulfurization tower, a scrubbing pipe is provided between two adjacent filter plates, and multiple atomizing nozzles are provided along the length of the scrubbing pipe, characterized in that: The desulfurization tower is also equipped with a liquid supply device, which includes an internal liquid supply pipe arranged axially in the desulfurization tower. The internal liquid supply pipe is provided with a rotatable liquid supply seat along its route. Spray pipes are installed at both ends of the liquid supply seat, and the other end of the spray pipe extends radially toward the inner wall of the desulfurization tower. The side wall of the desulfurization tower is provided with a swing mechanism that cooperates with the spray pipe. The swing mechanism can drive the liquid supply seat and the internal liquid supply pipe to rotate and cooperate.

2. The waste gas spray tower according to claim 1, characterized in that: The liquid supply device also includes a liquid supply pump located outside the desulfurization tower and an external liquid supply pipe connected to the outlet of the liquid supply pump. A horizontally arranged diverting liquid supply pipe is connected to the top of the external liquid supply pipe, and the inner end of the diverting liquid supply pipe is connected to the top of the internal liquid supply pipe.

3. The waste gas spray tower according to claim 2, characterized in that: The filter plate has a central through hole for the internal liquid supply pipe to pass through, and a support base for supporting the filter plate is provided inside the desulfurization tower.

4. The waste gas spray tower according to claim 1, characterized in that: The internal liquid supply pipe is equipped with multiple bidirectional flow-type rotary joints at intervals along its route, and the rotary joints are radially formed with lateral joints.

5. The waste gas spray tower according to claim 4, characterized in that: The rotary joint is fitted with a liquid supply seat, and a liquid supply cavity for liquid flow is formed inside the liquid supply seat. The side connector of the rotary joint is connected to the liquid supply cavity inside the liquid supply seat, and the inner end of the spray pipe is connected to the liquid supply cavity inside the liquid supply seat.

6. The waste gas spray tower according to claim 5, characterized in that: The bottom of the liquid supply chamber is provided with a support sleeve fitted inside the liquid supply pipe. The top of the support sleeve is formed with multiple concave rolling grooves, and bottom guide balls are installed in the rolling grooves. The bottom surface of the liquid supply seat rolls in cooperation with the bottom guide balls.

7. The waste gas spray tower according to claim 1, characterized in that: The swing mechanism includes a drive groove formed on the inner wall of the desulfurization tower, a drive gear arranged laterally installed in the drive groove, and an arc-shaped drive rack installed at the outer end of the spray pipe. The drive rack is laterally aligned with the drive gear, and the drive rack meshes with the drive gear for transmission.

8. The waste gas spray tower according to claim 7, characterized in that: The number of drive slots is multiple. The inner wall of the desulfurization tower is formed with a longitudinal axial slot. The axial slot is connected to the drive slot. Two adjacent drive slots are longitudinally aligned. A rotatable drive shaft is arranged in the axial slot. The drive gear located in the drive slot is sleeved on the drive shaft.

9. The waste gas spray tower according to claim 8, characterized in that: One or more of the spray pipes are connected at their outer ends to the middle of the drive rack, one or more of the spray pipes are connected at their outer ends to the left side of the drive rack, and one or more of the spray pipes are connected at their outer ends to the right side of the drive rack.

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