Treatment device for recovering waste heat of saline water in chlor-alkali production
By designing a filter device with a rotating shaft and cleaning components, the problem of easy clogging in traditional filter devices is solved, and automated impurity cleaning and efficient condensate recovery are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-03-31
- Publication Date
- 2026-05-12
AI Technical Summary
In the process of recovering waste heat from brine produced in chlor-alkali production, traditional filtration devices are prone to clogging and require complicated cleaning, which affects the filtration effect.
Design a device that includes a processing cylinder, a filter plate, a rotating shaft, and a cleaning component. The rotating shaft is driven by a drive component, and the cleaning component cleans impurities on the filter plate. The impurities are collected through a guide groove and a discharge port to prevent the filter plate from clogging.
It achieves automated impurity cleaning, avoids filter plate clogging, and improves the recycling rate of condensate and filtration effect.
Smart Images
Figure CN122006319A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of filtration technology, and more specifically to a treatment device for recovering waste heat from brine produced in chlor-alkali production. Background Technology
[0002] During the production of chlor-alkali brine, a large amount of high-temperature condensate is generated. This condensate is a high-quality heat source that can be recycled and reused. It can be directly returned to the boiler or used for salt production. However, the condensate contains a lot of impurities and needs to be filtered to ensure its cleanliness. Traditional filtration devices can perform routine filtration of the condensate, but they do not have the function of cleaning the filter structure. As the usage time increases, the filter structure will become clogged, which will affect the filtration effect.
[0003] To address the problems of traditional filtration devices, Chinese Patent CN209554979U discloses a filtration system for recycled condensate from a cogeneration boiler. The system includes a boiler body with a permeable balloon connected to its upper end. The upper right end of a heat-absorbing pipe penetrates the boiler body and connects to an inlet pipe, while the lower left end of the heat-absorbing pipe penetrates the boiler body and connects to an outlet pipe. A screening pipe is connected to the middle of the inlet pipe. A handle is welded to the front surface of the inlet pipe. A rubber ring is attached to the connection between the rotating shaft and the cover plate. An iron plate is welded to the middle of the rotating shaft, and a magnet is fixedly installed at the lower end of the iron plate. A filter screen is fixedly installed in the middle of the screening pipe. The lower end of the inlet pipe is magnetically connected to the upper surface of a collection box. A locking block is fixedly connected to the upper end of the sliding plate. A threaded pipe is threadedly connected to the upper end of the threaded rod. This filtration system can filter impurities in the condensate and also uses the rotating magnet to agitate the condensate near the filter screen, causing the impurities to move irregularly, thus preventing the filter screen from clogging.
[0004] The above-mentioned filtration system has the following problems during actual use: Although the rotating magnet can agitate the condensate near the filter screen, thereby causing impurities to move irregularly and preventing the filter screen from clogging, as the number of uses increases, more and more impurities will accumulate near the filter screen. Even if the impurities move irregularly, they will still affect the filtration effect. In order to avoid clogging the filter screen, if the cover plate needs to be manually removed from the screening tube after each filtration operation to remove the impurities near the filter screen, the operation will be cumbersome. Summary of the Invention
[0005] The present invention aims to provide a treatment device for waste heat recovery of brine in chlor-alkali production, so as to solve the problem of cumbersome operation in the existing filtration system for cleaning the filter screen.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a treatment device for recovering waste heat from brine in chlor-alkali production, comprising a treatment cylinder, an inlet pipe and an outlet pipe connected to the treatment cylinder, a filter plate disposed inside the treatment cylinder, the filter plate being conical in shape, the width of the filter plate gradually increasing from top to bottom; a through hole provided on the filter plate, a rotating shaft rotatably connected inside the treatment cylinder, the rotating shaft passing through the through hole and capable of rotating within the through hole, a cleaning component for cleaning the filter plate provided on the rotating shaft; discharge ports provided on both sides of the treatment cylinder, collection boxes fixedly connected to both sides of the treatment cylinder, the interior of the collection boxes communicating with the discharge ports; and a drive component for driving the rotating shaft to rotate.
[0007] The principles and advantages of this scheme are: 1. Condensate is introduced into the feed pipe and passes through the filter plate, which filters out impurities in the condensate. The filtered condensate is then discharged from the discharge pipe for reuse.
[0008] 2. The drive component drives the rotating shaft to rotate, and the rotating shaft drives the cleaning component to clean the impurities on the filter plate to prevent the filter plate from clogging. In addition, while the rotating shaft drives the cleaning component to rotate, the cleaning component moves the impurities on the filter plate, promoting the impurities to pass through the discharge port and enter the collection box, thereby enabling the impurities to be collected in a concentrated manner.
[0009] Furthermore, the cleaning assembly includes a cleaning arm and a first bristle layer. The cleaning arm is fixedly connected to the rotating shaft, and the first bristle layer is fixedly connected to the bottom of the cleaning arm. The end of the first bristle layer away from the cleaning arm is in contact with the filter plate.
[0010] With the above setup, the rotating shaft drives the cleaning arm to rotate, and the cleaning arm drives the first bristle layer to move synchronously. The first bristle layer is used to clean the impurities on the filter plate, thus preventing the filter plate from clogging.
[0011] Furthermore, both sides of the processing cylinder are provided with reflux holes, which are located below the filter plate and are connected to the interior of the collection box. A sieve plate is sealed to the reflux holes.
[0012] With the above setup, if some condensate flows through the discharge port into the collection box, this condensate will pass through the screening plate and re-enter the processing cylinder. The screening plate can also filter impurities in the condensate, improving the recycling rate of the condensate.
[0013] Furthermore, guide grooves are provided on both sides of the top of the filter plate. The guide grooves are inclined and the distance between the two guide grooves gradually increases from top to bottom. The guide grooves are connected to the discharge port.
[0014] With the above setup, during the rotation of the first brush layer driven by the cleaning arm, the first brush layer can sweep impurities on the filter plate into the guide groove. The guide groove helps to temporarily collect and guide the impurities. Under the guidance of the inclined guide groove, the impurities pass through the discharge port and enter the collection box.
[0015] Furthermore, a support shaft is rotatably connected to one end of the guide groove near the discharge port, and a guide plate is sleeved on the support shaft, which can swing within the guide groove; it also includes an adjustment component for driving the guide plate to swing back and forth.
[0016] With the above setup, during the rotation of the first brush layer driven by the cleaning arm, the first brush layer can sweep impurities on the filter plate into the guide groove, so that the impurities fall on the guide plate and pass through the discharge port into the collection box under the guidance of the inclined guide plate.
[0017] By adjusting the components, the guide plate can be driven to swing back and forth around the support shaft, thereby intermittently increasing the inclination of the guide plate toward the discharge port, and promoting the impurities on the guide plate to pass through the discharge port and enter the collection box.
[0018] Furthermore, the guide plate makes frictional contact with the guide groove on both sides along the length of the guide groove.
[0019] With the above settings, during the reciprocating swing of the guide plate in the guide groove, the guide plate and the guide groove make frictional contact along the length of the guide groove on both sides, thereby ensuring that impurities remain on the guide plate and thus promoting all impurities to pass through the discharge port and enter the collection box.
[0020] Furthermore, an extension groove is provided at the end of the guide groove away from the discharge port, and the guide plate extends into the extension groove, allowing the guide plate to swing within the extension groove; a fixed plate is provided inside the extension groove, and a vertical hole is provided on the fixed plate; an extension block is provided at the end of the guide plate that extends into the extension groove, and the extension block passes through the vertical hole, allowing the extension block to swing within the vertical hole.
[0021] With the above setup, the guide plate extends into the extension groove, which ensures that impurities remain on the guide plate, thereby promoting all impurities to pass through the discharge port and enter the collection box.
[0022] During the reciprocating swing of the guide plate in the guide groove, the guide plate drives the extension block to reciprocate within the vertical hole, causing the extension block to intermittently impact the top and bottom of the vertical hole. This causes the guide plate to vibrate, promoting the impurities on the guide plate to pass through the discharge port and enter the collection box. Furthermore, the intermittent impact of the extension block on the top and bottom of the vertical hole causes the filter plate to shake slightly, promoting irregular movement of impurities on the filter plate and preventing clogging of the filter plate.
[0023] Furthermore, the adjustment assembly includes an adjustment shaft rotatably connected to the inner walls of both sides of the processing cylinder, an adjustment block vertically slidably connected to the bottom sides of the filter plate, and an adjustment part that rotates with the rotating shaft and simultaneously drives the two adjustment shafts to rotate. A cam is coaxially connected to the adjustment shaft. One end of the adjustment block extends into the guide groove and is hinged to the guide block. The other end of the adjustment block is provided with a rectangular frame. The cam abuts against the top and bottom of the rectangular frame, and the cam can rotate within the rectangular frame.
[0024] With the above settings, during the rotation of the rotating shaft, the adjusting part drives the adjusting shaft to rotate, the adjusting shaft drives the cam to rotate, the cam drives the adjusting block to move vertically back and forth through the rectangular frame, and the adjusting block drives the guide plate to swing back and forth around the support shaft.
[0025] Furthermore, the adjusting shaft is provided with a wall block, and the wall block is provided with a second bristle layer for cleaning the screening plate. The end of the second bristle layer away from the wall block is in contact with the screening plate.
[0026] With the above settings, during the rotation of the adjusting shaft, the adjusting shaft drives the wall block to rotate, and the wall block drives the second brush layer to rotate. The second brush layer is used to clean the screening plate and prevent the screening plate from clogging.
[0027] Furthermore, the adjustment unit includes a driving bevel gear coaxially connected to the rotating shaft and a driven bevel gear coaxially connected to the adjustment shaft, with the driving bevel gear meshing with the driven bevel gear.
[0028] With the above settings, during the rotation of the shaft, the shaft drives the driving bevel gear to rotate, and the driving bevel gear meshes with the driven bevel gear to drive the adjusting shaft to rotate. Attached Figure Description
[0029] Figure 1 This is a schematic diagram of an embodiment of a treatment device for recovering waste heat from brine in chlor-alkali production according to the present invention. Figure 2 for Figure 1 There is no structural diagram of the collection box in the image; Figure 3 for Figure 1 Schematic diagram of the internal structure of the cylindrical processing unit; Figure 4 for Figure 3 Schematic diagram of the middle filter plate; Figure 5 for Figure 4 A schematic diagram of a partial structure; Figure 6 for Figure 5 Enlarged view of point A in the middle. Detailed Implementation
[0030] The following detailed description illustrates the specific implementation method: The reference numerals in the accompanying drawings include: processing cylinder 10, feed pipe 11, discharge pipe 12, filter plate 20, motor 21, rotating shaft 22, cleaning arm 23, first brush layer 24, discharge port 30, collection box 31, sealing block 32, screening plate 33, guide groove 40, support shaft 41, guide plate 42, extension groove 43, fixing plate 44, vertical hole 45, extension block 46, adjusting shaft 50, adjusting block 51, cam 52, rectangular frame 53, wall block 54, second brush layer 55, driving bevel gear 56, driven bevel gear 57.
[0031] Example The basics are as follows: Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 4 Appendix Figure 5 Appendix Figure 6 As shown: A treatment device for waste heat recovery of brine in chlor-alkali production includes a treatment cylinder 10, with an inlet pipe 11 and an outlet pipe 12 connected to the treatment cylinder 10. The inlet pipe 11 is located at the top of the treatment cylinder 10, and the outlet pipe 12 is located at the bottom of the treatment cylinder 10.
[0032] A filter plate 20 is fixedly connected inside the processing cylinder 10. The filter plate 20 is conical and its width gradually increases from top to bottom. The filter plate 20 is provided with several filter holes for filtering impurities in the condensate. A through hole is opened in the middle of the filter plate 20. A rotating shaft 22 is rotatably connected to the middle of the inside of the processing cylinder 10. The rotating shaft 22 passes through the through hole and can rotate within the through hole. The processing cylinder 10 also includes a drive assembly for driving the rotating shaft 22 to rotate. The drive assembly is a motor 21. The motor 21 is fixedly connected to the processing cylinder 10, and the output shaft of the motor 21 is coaxially connected to the rotating shaft 22.
[0033] The rotating shaft 22 is provided with a cleaning assembly for cleaning the filter plate 20. The cleaning assembly includes a cleaning arm 23 and a first bristle layer 24. The cleaning arm 23 is fixedly connected to the rotating shaft 22 and is inclined. The first bristle layer 24 is fixedly connected to the bottom of the cleaning arm 23. The end of the first bristle layer 24 away from the cleaning arm 23 contacts the filter plate 20. That is, the first bristle layer 24 includes a plurality of first bristles. The first bristles are fixedly connected to the bottom of the cleaning arm 23 and the end of the first bristles away from the cleaning arm 23 contacts the filter plate 20.
[0034] Both sides of the processing cylinder 10 have discharge ports 30, and both sides of the processing cylinder 10 are fixedly connected to collection boxes 31. The interior of the collection boxes 31 is connected to the discharge ports 30. The collection boxes 31 have openings, and sealing blocks 32 are threaded onto the openings. By removing the sealing blocks 32 from the openings, the impurities collected in the collection boxes 31 can be discharged. Both sides of the processing cylinder 10 have return holes, which are located below the filter plate 20 and are connected to the interior of the collection boxes 31. A sieve plate 33 is sealed onto the return holes, and the sieve plate 33 is provided with several sieve holes for filtering impurities in the condensate.
[0035] The top two sides of the filter plate 20 are provided with guide grooves 40. The guide grooves 40 are set at an angle, and the distance between the two guide grooves 40 gradually increases from top to bottom. The guide grooves 40 are connected to the discharge port 30. A support shaft 41 is rotatably connected to one end of the guide groove 40 near the discharge port 30. A guide plate 42 is sleeved on the support shaft 41, and the guide plate 42 can swing within the guide groove 40. The guide plate 42 makes frictional contact with the guide groove 40 on both sides along the length direction of the guide groove 40. An extension groove 43 is opened at the end of the guide groove 40 away from the discharge port 30. The guide plate 42 extends into the extension groove 43 and can swing within the extension groove 43. A fixing plate 44 is fixedly connected within the extension groove 43. A vertical hole 45 is opened on the fixing plate 44. An extension block 46 is fixedly connected to one end of the guide plate 42 that extends into the extension groove 43. The extension block 46 passes through the vertical hole 45 and can swing within the vertical hole 45. During the swinging of the extension block 46, the extension block 46 can act on the top and bottom of the vertical hole 45.
[0036] It also includes an adjustment assembly for driving the guide plate 42 to swing back and forth. The adjustment assembly includes an adjustment shaft 50 rotatably connected to the inner walls of both sides of the processing cylinder 10, an adjustment block 51 vertically slidably connected to the bottom sides of the filter plate 20, and an adjustment part that drives the two adjustment shafts 50 to rotate simultaneously with the rotating shaft 22. A cam 52 is coaxially connected to the adjustment shaft 50. One end of the adjustment block 51 extends into the guide groove 40 and is hinged to the guide block. The other end of the adjustment block 51 is fixed to a rectangular frame 53. The cam 52 is located inside the rectangular frame 53. The cam 52 abuts against the top and bottom of the rectangular frame 53. The cam 52 can rotate inside the rectangular frame 53. A wall block 54 is fixedly connected to the adjusting shaft 50. A second bristle layer 55 for cleaning the screening plate 33 is fixedly connected to the wall block 54. The end of the second bristle layer 55 away from the wall block 54 contacts the screening plate 33. That is, the second bristle layer 55 includes a plurality of second bristles, which are fixedly connected to the wall block 54, and the end of the second bristles away from the wall block 54 contacts the screening plate 33. The adjusting part includes a driving bevel gear 56 coaxially connected to the rotating shaft 22 and a driven bevel gear 57 coaxially connected to the adjusting shaft 50. The driving bevel gear 56 and the driven bevel gear 57 mesh.
[0037] The specific implementation process is as follows: In use, condensate is introduced into the feed pipe 11 and passes through the filter plate 20, thereby filtering out impurities in the condensate and allowing the filtered condensate to be discharged from the discharge pipe 12.
[0038] When motor 21 is started, its output shaft drives shaft 22 to rotate, which in turn drives cleaning arm 23 to rotate. Cleaning arm 23 drives first brush layer 24 to move synchronously, cleaning impurities on filter plate 20 and preventing clogging. During the rotation of first brush layer 24 by cleaning arm 23, impurities on filter plate 20 are swept into guide groove 40, where they fall onto guide plate 42. Guided by the inclined guide plate 42, the impurities pass through discharge port 30 and enter collection box 31, thus enabling centralized collection. Additionally, if some condensate passes through discharge port 30 into collection box 31, this condensate passes through screening plate 33 and re-enters processing cylinder 10, where screening plate 33 also filters impurities from the condensate.
[0039] During the rotation of the rotating shaft 22, the rotating shaft 22 drives the active bevel gear 56 to rotate. The active bevel gear 56 meshes with the driven bevel gear 57 to drive the adjusting shaft 50 to rotate. The adjusting shaft 50 drives the cam 52 to rotate. The cam 52 drives the adjusting block 51 to move vertically back and forth through the rectangular frame 53. The adjusting block 51 drives the guide plate 42 to swing back and forth around the support shaft 41. This can intermittently increase the inclination of the guide plate 42 toward the discharge port 30, and promote the impurities on the guide plate 42 to pass through the discharge port 30 and enter the collection box 31. During the rotation of the adjusting shaft 50, the adjusting shaft 50 drives the wall block 54 to rotate. The wall block 54 drives the second brush layer 55 to rotate. The second brush layer 55 is used to clean the screening plate 33 to prevent the screening plate 33 from clogging.
[0040] During the reciprocating swing of the guide plate 42 within the guide groove 40, the guide plate 42 rubs against the guide groove 40 on both sides along the length direction of the guide groove 40, thereby ensuring that impurities remain on the guide plate 42, thus promoting all impurities to pass through the discharge port 30 and enter the collection box 31; furthermore, the guide plate 42 extends into the extension groove 43, thereby ensuring that impurities remain on the guide plate 42, thus promoting all impurities to pass through the discharge port 30 and enter the collection box 31.
[0041] During the reciprocating swing of the guide plate 42 within the guide groove 40, the guide plate 42 drives the extension block 46 to reciprocate within the vertical hole 45, causing the extension block 46 to intermittently impact the top and bottom of the vertical hole 45. This causes the guide plate 42 to vibrate, promoting the impurities on the guide plate 42 to pass through the discharge port 30 and enter the collection box 31. Furthermore, during the intermittent impact of the extension block 46 on the top and bottom of the vertical hole 45, the filter plate 20 is slightly shaken, promoting the irregular movement of impurities on the filter plate 20 and preventing clogging of the filter plate 20.
[0042] The above descriptions are merely embodiments of the present invention, and common knowledge such as specific technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. A treatment device for recovering waste heat from brine produced in chlor-alkali industry, comprising a treatment cylinder with an inlet pipe and an outlet pipe connected to the treatment cylinder, characterized in that: The processing cylinder contains a filter plate, which is conical in shape and gradually increases in width from top to bottom. The filter plate has a through hole, and a rotating shaft is rotatably connected inside the processing cylinder, passing through the through hole and rotating within it. The shaft is equipped with a cleaning component for cleaning the filter plate. Discharge ports are located on both sides of the processing cylinder, and collection boxes are fixedly connected to both sides, with the interior of the collection boxes communicating with the discharge ports. The system also includes a drive component for rotating the shaft.
2. The treatment device for waste heat recovery from brine in chlor-alkali production according to claim 1, characterized in that: The cleaning assembly includes a cleaning arm and a first bristle layer. The cleaning arm is fixedly connected to a rotating shaft, and the first bristle layer is fixedly connected to the bottom of the cleaning arm. The end of the first bristle layer away from the cleaning arm is in contact with the filter plate.
3. The treatment device for waste heat recovery from brine in chlor-alkali production according to claim 2, characterized in that: The processing cylinder has reflux holes on both sides, which are located below the filter plate and are connected to the inside of the collection box. A sieve plate is sealed to the reflux holes.
4. The treatment device for waste heat recovery from brine in chlor-alkali production according to claim 3, characterized in that: The filter plate has guide grooves on both sides of the top. The guide grooves are inclined and the distance between the two guide grooves gradually increases from top to bottom. The guide grooves are connected to the discharge port.
5. The treatment device for waste heat recovery from brine in chlor-alkali production according to claim 4, characterized in that: The guide groove is rotatably connected to a support shaft at one end near the discharge port, and a guide plate is sleeved on the support shaft. The guide plate can swing within the guide groove. It also includes an adjustment component for driving the guide plate to swing back and forth.
6. The treatment device for waste heat recovery from brine in chlor-alkali production according to claim 5, characterized in that: The guide plate makes frictional contact with the guide groove on both sides along the length of the guide groove.
7. The treatment device for waste heat recovery from brine in chlor-alkali production according to claim 6, characterized in that: An extension groove is provided at the end of the guide groove away from the discharge port. The guide plate extends into the extension groove and can swing within the extension groove. A fixed plate is provided inside the extension groove. The fixed plate has a vertical hole. An extension block is provided at the end of the guide plate that extends into the extension groove. The extension block passes through the vertical hole and can swing within the vertical hole.
8. The treatment device for waste heat recovery from brine in chlor-alkali production according to claim 7, characterized in that: The adjustment assembly includes an adjustment shaft rotatably connected to the inner walls of both sides of the processing cylinder, an adjustment block vertically slidably connected to the bottom sides of the filter plate, and an adjustment part that rotates with the rotating shaft and simultaneously drives the two adjustment shafts to rotate. A cam is coaxially connected to the adjustment shaft. One end of the adjustment block extends into the guide groove and is hinged to the guide block. The other end of the adjustment block is provided with a rectangular frame. The cam abuts against the top and bottom of the rectangular frame, and the cam can rotate within the rectangular frame.
9. The treatment device for waste heat recovery from brine in chlor-alkali production according to claim 8, characterized in that: The adjusting shaft is provided with a wall block, and the wall block is provided with a second bristle layer for cleaning the screening plate. The end of the second bristle layer away from the wall block is in contact with the screening plate.
10. The treatment device for waste heat recovery from brine in chlor-alkali production according to claim 9, characterized in that: The adjustment unit includes a driving bevel gear coaxially connected to the rotating shaft and a driven bevel gear coaxially connected to the adjustment shaft, with the driving bevel gear meshing with the driven bevel gear.