Dyeing wastewater heat energy recovery energy-saving device

By separating impurities through a rotating filter box and cleaning mechanism, combined with temperature sensor and flow meter control, the problem of low heat exchange efficiency in traditional dyeing wastewater heat recovery devices is solved, achieving efficient and stable heat recovery.

CN121025856AInactive Publication Date: 2025-11-28CHANGZHOU TEXTILE GARMENT INST +1
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Patent Information

Application Number
CN202511135432.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-14
Publication Date
2025-11-28
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

In traditional dyeing wastewater heat recovery devices, the contact area between the heat-collecting aluminum plate and the wastewater is limited, resulting in low heat exchange efficiency. Furthermore, impurities precipitate when the wastewater temperature decreases, leading to low heat recovery efficiency.

Method used

The system employs a rotating filter housing and cleaning mechanism. A drive motor rotates the filter housing to separate impurities, while scraper blocks and scrapers clean the impurities, extending the residence time of wastewater in the recovery tank. Temperature sensors and flow meters control the flow rate of cold water to ensure full recovery of heat energy.

Benefits of technology

It improves heat recovery efficiency, reduces the frequency of equipment maintenance, maintains continuous operation of the equipment, and ensures the stability and efficiency of heat recovery.

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Abstract

The invention discloses a dyeing wastewater heat energy recovery energy-saving device, and relates to the technical field of wastewater heat energy recovery. The dyeing wastewater heat energy recovery energy-saving device comprises a recovery box body, the top of the recovery box body is fixedly connected with a connecting rod, the surface of the connecting rod is fixedly connected with a filtering box body, the interior of the recovery box body is fixedly connected with a heat energy recovery mechanism, and the interior of the filtering box body is rotatably connected with a filtering mechanism. And the surface of the recycling box body is fixedly connected with an adjusting mechanism. According to the dyeing wastewater heat energy recovery energy-saving device, the rotary filtering box body is arranged, and a first driving motor is started to finally drive the rotary filtering box body to rotate, so that a large amount of impurities contained in wastewater in the rotary filtering box body are separated under the action of centrifugal force; impurities are prevented from being dispersed into a subsequent structure to affect insufficient absorption of subsequent heat energy, and frequent disassembly and cleaning of the heat energy recovery mechanism are reduced, so that the heat energy recovery efficiency of the device is improved.
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Description

Technical Field

[0001] This invention relates to the field of wastewater heat energy recovery technology, specifically to an energy-saving device for recovering heat energy from dyeing wastewater. Background Technology

[0002] In the production process of skein yarn, dyeing is required. The traditional dyeing process uses a heated dyeing method. Dye and water are added to the dyeing container according to the ratio, and dyeing aids are added. The skein yarn is dyed by raising the temperature. After dyeing a batch of skein yarn, the dye needs to be re-mixed and the original dye solution is discharged. Direct discharge into the sewer will cause environmental pollution, and the high temperature will indirectly increase costs. A heat recovery device is a device that recovers and utilizes the heat energy of the discharged wastewater.

[0003] Citing the Chinese utility model patent with publication number "CN211234095U", a wastewater inlet is described, which is fixedly installed on a heat collection box. Heat collection aluminum plates are installed on the inner walls of both the upper and lower ends of the heat collection box. A hot water tank is connected to the outside of the heat collection aluminum plates. A wastewater filter box is connected to the right side of the heat collection box, and a wastewater filter bag is fixedly installed inside the wastewater filter box. A dye particle collection hopper is connected to the lower end of the wastewater filter box, directly opposite the lower end of the wastewater filter bag. A discharge valve is fixedly installed at the lower end of the dye particle collection hopper. A wastewater cleaner is connected to the right side of the wastewater filter box.

[0004] The aluminum heat-collecting plates are only installed on the inner walls of the upper and lower ends of the heat-collecting box, resulting in a limited contact area with the wastewater. If the wastewater flow rate is fast, the heat energy absorption is insufficient, leading to low heat exchange efficiency. At the same time, when the wastewater absorbs heat, impurities will precipitate due to the decrease in wastewater temperature, causing impurities to adhere to the surface of the aluminum heat-collecting plates, further resulting in low heat exchange efficiency and affecting the efficiency of heat energy recovery. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an energy-saving device for recovering heat energy from dyeing wastewater, thereby solving the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: a heat energy recovery and energy-saving device for dyeing wastewater, comprising a recovery box, a connecting rod fixedly connected to the top of the recovery box, a filter box fixedly connected to the surface of the connecting rod, a heat energy recovery mechanism fixedly connected inside the recovery box, a filter mechanism rotatably connected inside the filter box, and an adjustment mechanism fixedly connected to the surface of the recovery box. The filtration system includes: A rotating support ring block is rotationally connected inside the filter box body, and a cleaning mechanism is fixedly connected to the top of the rotating support ring block. A rotating filter box body is fixedly connected to the surface of the rotating support ring block. The cleaning mechanism comprises a cleaning block that is slidingly connected inside the rotating support ring block.

[0007] Preferably, the filter mechanism further comprises a first drive motor fixedly connected to the top of the filter box body, a first gear fixedly connected to the inside of the first drive motor through an output shaft, a rotating connection pipe fixedly connected to the top of the filter box body, a first pipe rotatably connected to the top of the rotating connection pipe, and a second pipe rotatably connected to the bottom of the rotating connection pipe.

[0008] Preferably, the second pipe is meshingly connected with the first gear, the rotating filter box body is fixedly connected to the top of the second pipe.

[0009] Preferably, the adjusting mechanism comprises a third pipe fixedly connected to the bottom of the filter box body, a temperature sensor fixedly connected to the surface of the third pipe, a first water pump fixedly connected to the surface of the recovery box body and fixedly connected with the third pipe, and a first electromagnetic control valve fixedly connected to the surface of the third pipe.

[0010] Preferably, the surface of the recovery box body is fixedly connected with a fourth pipe and a second water pump, the surface of the fourth pipe is fixedly connected with a second electromagnetic control valve, the surface of the recovery box body is further fixedly connected with the second water pump, and the surface of the fourth pipe is further fixedly connected with a flow meter.

[0011] Preferably, the heat energy recovery mechanism comprises a fifth pipe fixedly connected inside the recovery box body and fixedly connected with the second water pump, and a baffle fixedly connected inside the recovery box body.

[0012] Preferably, the top of the baffle is fixedly connected with a third drive motor, the inside of the third drive motor is fixedly connected with a fourth gear through an output shaft, the surface of the fourth gear is meshingly connected with a first gear belt, the inside of the baffle is rotatably connected with a second gear belt, the surface of the second gear belt is fixedly connected with a scraping block, and the fifth pipe is slidingly connected with the second gear belt.

[0013] Preferably, the cleaning mechanism comprises a second driving motor fixedly connected to the top of the rotating support ring block, a second gear fixedly connected to the inside of the second driving motor through an output shaft, and an annular tooth block meshingly connected to the surface of the second gear and rotatably connected to the top of the rotating support ring block.

[0014] Preferably, the rotating support ring block is rotatably connected with a rotating shaft, the surface of the rotating shaft is fixedly connected with a third gear, the surface of the third gear is meshingly connected with the annular tooth block, the surface of the rotating shaft is slidably connected with the cleaning block, the bottom of the rotating filter box is fixedly connected with a linear motor, and the inside of the linear motor is fixedly connected with a disc-type scraper through an output shaft.

[0015] The present application provides a dyeing wastewater heat energy recovery energy-saving device. 1. The dyeing wastewater heat energy recovery energy-saving device separates a large amount of impurities in the wastewater under the action of centrifugal force by rotating the rotating filter box through the first driving motor, avoids the dispersion of impurities into the subsequent structure to affect the insufficient absorption of heat energy, reduces the frequent disassembly and cleaning of the heat energy recovery mechanism, and improves the heat energy recovery efficiency of the device.

[0016] 2. The dyeing wastewater heat energy recovery energy-saving device moves the cleaning block to the direction of the rotating filter box by rotating the annular tooth block through the second driving motor, pushes out the impurities accumulated in the through hole on the surface of the rotating filter box, pushes the impurities adhered to the inner wall of the rotating filter box into the side of the rotating filter box through the disc-type scraper driven by the linear motor, avoids the blockage of the through hole caused by impurities, ensures the filtering effect of the rotating filter box, reduces the time of manual operation, maintains the continuity of the device, and improves the heat energy recovery efficiency of the device.

[0017] 3. The dyeing wastewater heat energy recovery energy-saving device prolongs the residence time of the wastewater in the recovery box by arranging baffles and a fifth pipeline in the inside of the recovery box, ensures the full transmission of heat energy, further arranges a scraping block on the surface of the fifth pipeline, drives the scraping block to scrape the impurities adhered to the surface of the fifth pipeline through the third driving motor, avoids the reduction of water temperature to cause the precipitation of impurities and the adsorption of the impurities on the surface of the fifth pipeline, affects the heat exchange efficiency, improves the heat energy recovery efficiency of the device, and sets a flow meter to feedback the flow of the recovered wastewater in real time, sets a temperature sensor to control and adjust the flow of cold water introduced into the inside of the fifth pipeline through the second water pump according to the temperature change of the wastewater, avoids the excessive water temperature, and improves the stability of the output of the device. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic view of the front perspective structure of the present application; Figure 2 is a schematic view of the back perspective structure of the present application; Figure 3 is a schematic view of the present application Figure 2 is an enlarged schematic view of A in the present application; Figure 4 is a schematic view of the filtering mechanism of the present application; Figure 5 is a schematic view of the cross-section of the filtering box of the present application; Figure 6 is a schematic view of the heat energy recovery mechanism of the present application; Figure 7 is a schematic view of the cross-section of the recovery box of the present application; Figure 8 is a schematic view of the present application Figure 7 is an enlarged schematic view of C in the present application; Figure 9 is a schematic view of the present application Figure 5 is an enlarged schematic view of B in the present application; Figure 10 is a schematic view of the partial cleaning mechanism of the present application.

[0019] In the figure: 1, recovery box; 2, filtering box; 3, filtering mechanism; 31, first pipeline; 32, rotating connecting pipe; 33, second pipeline; 34, rotating filtering box; 35, rotating support ring block; 36, first driving motor; 37, first gear; 4, cleaning mechanism; 41, second driving motor; 42, second gear; 43, annular tooth block; 44, third gear; 45, rotating shaft; 46, cleaning block; 47, linear motor; 48, disc-type scraper; 5, adjusting mechanism; 51, third pipeline; 52, temperature sensor; 53, first electromagnetic control valve; 54, first water pump; 55, second water pump; 56, flow meter; 57, second electromagnetic control valve; 58, fourth pipeline; 6, connecting rod; 7, heat energy recovery mechanism; 71, fifth pipeline; 72, baffle; 73, third driving motor; 74, first gear belt; 75, fourth gear; 76, second gear belt; 77, scraping block. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments of the present application.

[0021] Examples of the described embodiments are illustrated in the accompanying drawings, throughout which like reference characters represent like elements or elements with similar functions. The embodiments described below are exemplary and intended to be illustrative of the present invention, and are not to be understood as limiting the present invention.

[0022] Embodiment One: Please refer to Figures 1-8 The present application provides a technical solution: a dyeing wastewater heat energy recovery energy-saving device, comprising a recovery box body 1, the top of the recovery box body 1 is fixedly connected with a connecting rod 6, the surface of the connecting rod 6 is fixedly connected with a filter box body 2, the inside of the recovery box body 1 is fixedly connected with a heat energy recovery mechanism 7, the inside of the filter box body 2 is rotatably connected with a filtering mechanism 3, the surface of the recovery box body 1 is fixedly connected with an adjusting mechanism 5. The filtering mechanism 3 comprises: A rotating support ring block 35 is rotatably connected inside the filter box body 2, and the top of the rotating support ring block 35 is fixedly connected with a cleaning mechanism 4. A rotating filter box 34 is fixedly connected to the surface of the rotating support ring block 35. The cleaning mechanism 4 comprises a cleaning block 46 which is slidingly connected inside the rotating support ring block 35.

[0023] The filtering mechanism 3 further comprises a first drive motor 36 fixedly connected to the top of the filter box body 2, a first gear 37 fixedly connected to the inside of the first drive motor 36 through an output shaft, a rotating connection pipe 32 fixedly connected to the top of the filter box body 2, a first pipe 31 rotatably connected to the top of the rotating connection pipe 32, and a second pipe 33 rotatably connected to the bottom of the rotating connection pipe 32.

[0024] The second pipe 33 is meshingly connected with the first gear 37, the top of the second pipe 33 is fixedly connected with the rotating filter box 34, and the rotating filter box 34 is fixedly connected with the rotating support ring block 35.

[0025] The adjusting mechanism 5 comprises a third pipe 51 fixedly connected to the bottom of the filter box body 2, a temperature sensor 52 fixedly connected to the surface of the third pipe 51, a first water pump 54 fixedly connected to the surface of the recovery box body 1 and fixedly connected with the third pipe 51, and a first electromagnetic control valve 53 fixedly connected to the surface of the third pipe 51.

[0026] The surface of the recovery box body 1 is fixedly connected with a fourth pipe 58 and a second water pump 55, the surface of the fourth pipe 58 is fixedly connected with a second electromagnetic control valve 57, the surface of the recovery box body 1 is further fixedly connected with the second water pump 55, and the surface of the fourth pipe 58 is further fixedly connected with a flow meter 56.

[0027] The heat recovery mechanism 7 includes a fifth pipe 71, which is fixedly connected inside the recovery box 1 and is also fixedly connected to the second water pump 55. A baffle 72 is fixedly connected inside the recovery box 1.

[0028] In use, wastewater is introduced into the rotary filter box 34 through the first pipe 31. At the same time, the first drive motor 36 is started, which drives the first gear 37 to rotate through the output shaft. The rotation of the first gear 37 drives the second pipe 33 to rotate, thereby separating the wastewater and impurities inside the rotary filter box 34. Then, the first electromagnetic control valve 53 is controlled to start the first water pump 54. Based on the real-time temperature feedback of the third pipe 51 and the real-time detection of the flow rate of wastewater recovery through the flow meter 56, it is easy to introduce wastewater into the recovery box 1. Then, the second water pump 55 is controlled to introduce cold water into the fifth pipe 71. At this time, the wastewater flows inside the recovery box 1. Finally, the second electromagnetic control valve 57 is controlled to discharge the wastewater after recovery from the fourth pipe 58.

[0029] By setting up a rotating filter box 34, the first drive motor 36 is started to drive the rotating filter box 34 to rotate. This causes the wastewater inside the rotating filter box 34 to separate a large number of impurities under the action of centrifugal force, avoiding the impurities from being dispersed into the subsequent structure and affecting the insufficient absorption of subsequent heat energy. It also reduces the frequent disassembly and cleaning of the heat energy recovery mechanism 7, thereby improving the efficiency of heat energy recovery of the device.

[0030] By setting the cleaning block 46, the second drive motor 41 is started, which ultimately drives the annular toothed block 43 to rotate, thereby moving the cleaning block 46 towards the direction of the rotating filter box 34. This pushes out the impurities accumulated inside the through holes on the surface of the rotating filter box 34. In conjunction with starting the linear motor 47, the disc-shaped scraper 48 pushes the impurities adhering to the inner wall of the rotating filter box 34 into the side of the rotating filter box 34 for collection. This prevents impurities from clogging the through holes and causing a decrease in filtration capacity, and ensures the effectiveness of the rotating filter box 34 in filtering impurities. It also reduces the time for manual operation, maintains the continuity of the device's operation, and thus improves the efficiency of the device's heat recovery.

[0031] Example 2: Please refer to Figures 1-10 Based on Embodiment 1, the present invention provides a technical solution: A third drive motor 73 is fixedly connected to the top of the baffle 72. A fourth gear 75 is fixedly connected inside the third drive motor 73 through an output shaft. A first gear belt 74 is meshed with the surface of the fourth gear 75. A second gear belt 76 is rotatably connected inside the baffle 72. A scraping block 77 is fixedly connected to the surface of the second gear belt 76 and is slidably connected to the fifth pipe 71.

[0032] The cleaning mechanism 4 comprises a second driving motor 41 fixedly connected to the top of the rotating support ring block 35, the inside of the second driving motor 41 is fixedly connected with a second gear 42 through an output shaft, the surface of the second gear 42 is meshingly connected with an annular tooth block 43, and the annular tooth block 43 is rotatably connected to the top of the rotating support ring block 35.

[0033] The inside of the rotating support ring block 35 is rotatably connected with a rotating shaft 45, the surface of the rotating shaft 45 is fixedly connected with a third gear 44, and the surface of the third gear 44 is meshingly connected with the annular tooth block 43, the surface of the rotating shaft 45 is slidingly connected with a cleaning block 46, the bottom of the rotating filter box 34 is fixedly connected with a linear motor 47, the inside of the linear motor 47 is fixedly connected with a disc-shaped scraper 48 through an output shaft.

[0034] In use, the second driving motor 41 is started to drive the second gear 42 to rotate through the output shaft, the second gear 42 drives the annular tooth block 43 to rotate, the annular tooth block 43 drives the third gear 44 to rotate, the third gear 44 drives the rotating shaft 45 to rotate, and the rotating shaft 45 drives the cleaning block 46 to move in the direction of the rotating filter box 34, thereby pushing out the impurities inside the through hole, then the linear motor 47 is started to drive the disc-shaped scraper 48 to move to the top of the rotating filter box 34 through the output shaft, thereby pushing the impurities into the side of the rotating filter box 34 to be collected, the third driving motor 73 is started to drive the fourth gear 75 to rotate through the output shaft, the fourth gear 75 drives the first gear belt 74 to rotate, and the fourth gear 75 drives the second gear belt 76 to rotate through the output shaft while rotating, the rotation of the second gear belt 76 drives the scraping block 77 to scrape off the impurities on the surface of the fifth pipeline 71 and collect them inside the scraping block 77.

[0035] By arranging the baffle 72 and the fifth pipeline 71 inside the recycling box 1, the residence time of the wastewater inside the recycling box 1 is prolonged, ensuring that the heat energy is fully transferred, further arranging the scraping block 77 on the surface of the fifth pipeline 71, starting the third driving motor 73 to drive the scraping block 77 to scrape off the impurities adhered to the surface of the fifth pipeline 71, avoiding the reduction of water temperature leading to the precipitation of impurities adsorbed on the surface of the fifth pipeline 71 affecting the heat exchange efficiency, thereby improving the efficiency of the device heat energy recovery, and arranging the flow meter 56 to feedback the flow of wastewater recovery in real time, arranging the temperature sensor 52 to control and adjust the flow of cold water introduced into the fifth pipeline 71 by the second water pump 55 according to the temperature change of the wastewater, avoiding the water temperature being too high, thereby improving the stability of the device output.

[0036] The above merely describes preferred specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art, according to the technical solution and inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A heat recovery and energy-saving device for dyeing wastewater, comprising a recovery tank (1), characterized in that: A connecting rod (6) is fixedly connected to the top of the recycling box (1), a filter box (2) is fixedly connected to the surface of the connecting rod (6), a heat recovery mechanism (7) is fixedly connected inside the recycling box (1), a filter mechanism (3) is rotatably connected inside the filter box (2), and an adjustment mechanism (5) is fixedly connected to the surface of the recycling box (1). The filtration mechanism (3) includes: A rotating support ring block (35) is rotatably connected to the inside of the filter box (2), and a cleaning mechanism (4) is fixedly connected to the top of the rotating support ring block (35). A rotating filter housing (34) is fixedly connected to the surface of a rotating support ring block (35); The cleaning mechanism (4) includes a cleaning block (46) which is slidably connected inside the rotating support ring block (35).

2. The energy-saving device for heat recovery of dyeing wastewater according to claim 1, characterized in that: The filtration mechanism (3) further includes a first drive motor (36), which is fixedly connected to the top of the filter box (2). The first drive motor (36) is fixedly connected to a first gear (37) through an output shaft. A rotating connecting pipe (32) is fixedly connected to the top of the filter box (2). A first pipe (31) is rotatably connected to the top of the rotating connecting pipe (32), and a second pipe (33) is rotatably connected to the bottom of the rotating connecting pipe (32).

3. The energy-saving device for heat recovery of dyeing wastewater according to claim 2, characterized in that: The second pipe (33) is meshed with the first gear (37), and a rotating filter box (34) is fixedly connected to the top of the second pipe (33). The rotating filter box (34) is fixedly connected to the rotating support ring block (35).

4. The energy-saving device for heat recovery of dyeing wastewater according to claim 3, characterized in that: The regulating mechanism (5) includes a third pipe (51), which is fixedly connected to the bottom of the filter box (2). A temperature sensor (52) is fixedly connected to the surface of the third pipe (51). A first water pump (54) is fixedly connected to the surface of the recycling box (1), and the first water pump (54) is fixedly connected to the third pipe (51). A first electromagnetic control valve (53) is also fixedly connected to the surface of the third pipe (51).

5. The energy-saving device for heat recovery of dyeing wastewater according to claim 4, characterized in that: The surface of the recycling box (1) is fixedly connected to a fourth pipe (58) and a second water pump (55). The surface of the fourth pipe (58) is fixedly connected to a second electromagnetic control valve (57). The surface of the recycling box (1) is also fixedly connected to a second water pump (55). The surface of the fourth pipe (58) is also fixedly connected to a flow meter (56).

6. The energy-saving device for heat recovery of dyeing wastewater according to claim 5, characterized in that: The heat recovery mechanism (7) includes a fifth pipe (71), which is fixedly connected to the inside of the recovery box (1) and is fixedly connected to the second water pump (55). A baffle (72) is fixedly connected inside the recovery box (1).

7. The energy-saving device for heat recovery of dyeing wastewater according to claim 6, characterized in that: The top of the baffle (72) is fixedly connected to a third drive motor (73), and the interior of the third drive motor (73) is fixedly connected to a fourth gear (75) through an output shaft. The surface of the fourth gear (75) is meshed with a first gear belt (74), and the interior of the baffle (72) is rotatably connected to a second gear belt (76). The surface of the second gear belt (76) is fixedly connected to a scraper block (77), and 77 is slidably connected to a fifth pipe (71).

8. The energy-saving device for heat recovery of dyeing wastewater according to claim 7, characterized in that: The cleaning mechanism (4) includes a second drive motor (41), which is fixedly connected to the top of the rotating support ring block (35). The interior of the second drive motor (41) is fixedly connected to a second gear (42) through an output shaft. The surface of the second gear (42) is meshed with an annular tooth block (43), and the annular tooth block (43) is rotatably connected to the top of the rotating support ring block (35).

9. The energy-saving device for heat recovery of dyeing wastewater according to claim 8, characterized in that: The rotating support ring block (35) is rotatably connected to a rotating shaft (45). A third gear (44) is fixedly connected to the surface of the rotating shaft (45), and the surface of the third gear (44) meshes with the ring tooth block (43). The surface of the rotating shaft (45) is slidably connected to the cleaning block (46). A linear motor (47) is fixedly connected to the bottom of the rotating filter box (34). A disc-shaped scraper (48) is fixedly connected to the inside of the linear motor (47) through an output shaft.

Citation Information

Patent Citations

  • Dyeing wastewater heat energy recovery energy-saving device

    CN211234095U