Printing and dyeing wastewater waste heat recovery device

By designing a waste heat recovery device for printing and dyeing wastewater, the activated carbon layer is used to filter harmful substances and heat exchange pipes to recover heat, which solves the problems of energy waste and low biochemical treatment efficiency caused by direct discharge of high-temperature wastewater, and achieves smooth flow of wastewater and heat recovery.

CN223122006UActive Publication Date: 2025-07-18HAINING ZHENHAI KNITTED TEXTILE DYEING & FINISHING CO LTD
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Patent Information

Application Number
CN202422049026.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-23
Publication Date
2025-07-18
Estimated Expiration
2034-08-23

AI Technical Summary

Technical Problem

The direct discharge of high-temperature wastewater generated by printing and dyeing companies during the bleaching, dyeing and washing process leads to energy waste and reduced biochemical treatment efficiency.

Method used

A waste heat recovery device for printing and dyeing wastewater is designed, including a connecting pipe, a water storage silo, an activated carbon layer and a heat exchange tube. The harmful substances are filtered through the activated carbon layer, the filter layer is cleaned by a motor-driven bristles, and the wastewater heat is recovered through the heat exchange tube.

Benefits of technology

It achieves smooth flow of wastewater and effective heat recovery, reduces the harm of wastewater discharge and reduces energy waste.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223122006U_ABST
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Abstract

The utility model discloses a printing and dyeing wastewater waste heat recovery device which comprises a connecting pipe and a water storage bin, the connecting pipe is arranged at the upper end of the side portion of the water storage bin, a cover plate is arranged at one end of the connecting pipe, a filter layer is arranged in the middle of the cover plate, and inserting blocks are arranged at the upper end and the lower end of the side portion of the cover plate. Inserting grooves are formed in the upper portion and the lower portion of one end of the connecting pipe, the inserting grooves are connected with inserting blocks in a clamped mode, adjusting bins are arranged at one ends of the inserting grooves, pull rods are arranged in the adjusting bins, pull blocks are fixed to one ends of the pull rods, push blocks are fixed to the other ends of the pull rods, and the push blocks are connected with the interiors of the inserting blocks in a clamped mode; a spring is connected between the push block and one end of the inner wall of the adjusting bin, and an activated carbon layer corresponding to the filter layer is arranged in the connecting pipe. According to the utility model, the harm of wastewater discharge can be reduced, and the wastewater can flow smoothly.
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Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment equipment, in particular to a waste heat recovery device for printing and dyeing wastewater. Background Art

[0002] At present, environmental problems such as water use, drainage and sludge treatment in printing and dyeing enterprises are becoming increasingly prominent. During the bleaching, dyeing and washing processes in printing and dyeing enterprises, high-temperature wastewater with a temperature of over 80 degrees Celsius is generated in the processes of yarn boiling, yarn bleaching and high-temperature water washing. If it is directly discharged into the wastewater regulation tank, it will not only reduce the biochemical treatment efficiency but also cause energy waste. Therefore, it is necessary to provide a waste heat recovery device to reasonably utilize the heat in the printing and dyeing wastewater to reduce energy waste. Content of the Utility Model

[0003] The purpose of the utility model is to provide a waste heat recovery device for printing and dyeing wastewater to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A waste heat recovery device for printing and dyeing wastewater includes a connecting pipe and a water storage bin. The connecting pipe is arranged at the upper end of the side of the water storage bin. One end of the connecting pipe is provided with a cover plate, and a filter layer is arranged in the middle of the cover plate. Plug blocks are arranged at the upper and lower ends of the side of the cover plate. Upper and lower parts of one end of the connecting pipe are provided with slots, and the slots are clamped with the plug blocks. One end of the slot is provided with an adjustment bin, and a pull rod is arranged inside the adjustment bin. One end of the pull rod is fixed with a pull block, and the other end of the pull rod is fixed with a push block, and the push block is clamped inside the plug block. A spring is connected between one end of the push block and the inner wall of the adjustment bin. An activated carbon layer is arranged in the connecting pipe corresponding to the filter layer.

[0005] Preferably, a heat preservation layer is arranged on the inner wall of the water storage bin, and a bin door is arranged corresponding to the cover plate at one end of the front part of the water storage bin.

[0006] Preferably, a rotating shaft is connected to the upper end inside the water storage bin through a bearing, and brush hairs are arranged on the outer wall of the lower end of the rotating shaft.

[0007] Preferably, a support cover is arranged at one end of the top of the water storage bin, and a motor is arranged inside the support cover, and the output end of the motor is fixedly connected to the driving end of the rotating shaft.

[0008] Preferably, one end of the connecting pipe is connected to a drain pipe, and the lower end of the side of the water storage bin is connected to a water supply pipe.

[0009] Preferably, a heat exchange pipe is arranged inside the water storage bin, and both ends of the heat exchange pipe are fixedly connected to the inside of the water storage bin.

[0010] Preferably, a water inlet is provided at the lower end of the heat exchange tube, and a water outlet is provided at the upper end of the heat exchange tube.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: it can reduce the harm of wastewater discharge and keep the wastewater flowing smoothly.

[0012] (1) The pulling block can be pulled to drive the outer movement of the pull rod and the compression of the spring, and then drive the pushing block to move, so as to make way for the inserting block. The inserting block is inserted into the slot, and then the pulling block is released. Under the push of the spring, the pushing block is driven to reset through the pull rod, so that the pushing block is inserted into the pushing block. Thus, the position of the cover plate can be fixed at one end of the connecting pipe, and then one end of the activated carbon layer can be blocked. The warehouse door can be opened, and then the activated carbon in the activated carbon layer can be replaced by disassembling and assembling the cover plate, so as to maintain the good adsorption effect of the activated carbon layer on the harmful substances in the wastewater and reduce the harm of wastewater discharge.

[0013] (2) Driven by the motor, the rotating shaft rotates, and then drives the brush to brush, so as to brush the filter layer, avoid the filter layer being blocked by impurity particles in the wastewater and affecting the discharge of wastewater, and keep the wastewater flowing smoothly. Description of the Drawings

[0014] Figure 1 is the main sectional structure schematic diagram of the present utility model;

[0015] Figure 2 is the main structure schematic diagram of the present utility model;

[0016] Figure 3 is the structure schematic diagram of the connecting pipe and the cover plate of the present utility model;

[0017] Figure 4 is of the present utility model Figure 1 the enlarged structure schematic diagram at A in;

[0018] Figure 5 is the structure schematic diagram of the rotating shaft and the brush bristles of the present utility model;

[0019] In the figure: 1, water supply pipe; 2, heat exchange tube; 3, brush bristles; 4, rotating shaft; 5, motor; 6, support cover; 7, activated carbon layer; 8, drain pipe; 9, connecting pipe; 10, water storage bin; 11, heat insulation layer; 12, cover plate; 13, filter layer; 14, pushing block; 15, slot; 16, inserting block; 17, adjustment bin; 18, pull rod; 19, pulling block; 20, spring; 21, water inlet; 22, water outlet; 23, warehouse door. Detailed Embodiments

[0020] 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-5 , an embodiment provided by the present invention: a waste heat recovery device for printing and dyeing wastewater, including a connecting pipe 9 and a water storage tank 10. The connecting pipe 9 is arranged at the upper end of the side of the water storage tank 10. One end of the connecting pipe 9 is provided with a cover plate 12, and a filter layer 13 is arranged in the middle of the cover plate 12. Plug blocks 16 are arranged at the upper and lower ends of the side of the cover plate 12. Slots 15 are arranged at the upper and lower parts of one end of the connecting pipe 9, and the slots 15 are clamped with the plug blocks 16. One end of the slot 15 is provided with an adjustment chamber 17, and a pull rod 18 is arranged inside the adjustment chamber 17. A pull block 19 is fixed at one end of the pull rod 18, and a push block 14 is fixed at the other end of the pull rod 18. The push block 14 is clamped with the inside of the plug block 16, and a spring 20 is connected between one end of the inner wall of the push block 14 and the adjustment chamber 17;

[0022] During use, the pull block 19 can be pulled to drive the pull rod 18 to move outwards and the spring 20 to be compressed, thereby driving the push block 14 to move to make way for the plug block 16. The plug block 16 is inserted into the slot 15, and then the pull block 19 is released. Under the push of the spring 20, the push block 14 is driven to reset through the pull rod 18, so that the push block 14 is inserted into the push block 14. Thus, the position of the cover plate 12 can be fixed at one end of the connecting pipe 9, and one end of the activated carbon layer 7 can be intercepted;

[0023] A heat preservation layer 11 is arranged on the inner wall of the water storage tank 10. A warehouse door 23 is arranged at one end of the front part of the water storage tank 10 corresponding to the cover plate 12. An activated carbon layer 7 is arranged in the connecting pipe 9 corresponding to the filter layer 13;

[0024] During use, the warehouse door 23 can be opened, and then the activated carbon in the activated carbon layer 7 can be replaced by disassembling and assembling the cover plate 12 to maintain the good effect of the activated carbon layer 7 on adsorbing harmful substances in the wastewater;

[0025] The upper end inside the water storage tank 10 is connected with a rotating shaft 4 through a bearing, and brush hairs 3 are arranged on the outer wall of the lower end of the rotating shaft 4. A support cover 6 is arranged at one end of the top of the water storage tank 10, and a motor 5 is arranged inside the support cover 6. The output end of the motor 5 is fixedly connected with the driving end of the rotating shaft 4;

[0026] During use, driven by the motor 5, the rotating shaft 4 is driven to rotate, and then the brush hairs 3 are driven to brush, so as to brush the filter layer 13 to prevent impurity particles in the wastewater from blocking the filter layer 13 and affecting the discharge of the wastewater;

[0027] One end of the connecting pipe 9 is connected with a drain pipe 8, and one end of the water storage bin 10 is connected with a water supply pipe 1. A heat exchange pipe 2 is arranged inside the water storage bin 10, and both ends of the heat exchange pipe 2 are fixedly connected with the inside of the water storage bin 10;

[0028] During use, pour the wastewater into the water supply pipe 1. The heat of the wastewater acts on the heat exchange pipe 2, causing the temperature of the water flow in the heat exchange pipe 2 to rise, so as to recover the waste heat. After the action, the wastewater is discharged from the drain pipe 8;

[0029] The lower end of the heat exchange pipe 2 is provided with a water inlet 21, and the upper end of the heat exchange pipe 2 is provided with a water outlet 22;

[0030] During use, introduce the water flow into the water inlet 21, and the heated water flow is discharged from the water outlet 22;

[0031] When the embodiment of the present application is in use: First, the pulling block 19 can be pulled to drive the pull rod 18 to move outwards and the spring 20 to be compressed. Then, the push block 14 is driven to move to make way for the insertion block 16. The insertion block 16 is inserted into the insertion slot 15. Then, the pulling block 19 is released. Under the push of the spring 20, the push block 14 is driven to reset through the pull rod 18, so that the push block 14 is inserted into the push block 14. Thus, the position of the cover plate 12 can be fixed at one end of the connecting pipe 9, and then one end of the activated carbon layer 7 can be blocked. Subsequently, pour the wastewater into the water supply pipe 1. The heat of the wastewater acts on the heat exchange pipe 2. At the same time, introduce the water flow into the water inlet 21, so that the temperature of the water flow in the heat exchange pipe 2 rises, and the waste heat is recovered. After the action, the wastewater is discharged from the drain pipe 8, and the heated water flow is discharged from the water outlet 22. And, driven by the motor 5, the rotating shaft 4 rotates, and then the brush hair 3 is driven to brush, so as to brush the filter layer 13, preventing the impurity particles in the wastewater from blocking the filter layer 13 and affecting the discharge of the wastewater. In addition, the door 23 can be opened, and then the activated carbon in the activated carbon layer 7 can be replaced by disassembling and assembling the cover plate 12, maintaining the good adsorption effect of the activated carbon layer 7 on the harmful substances in the wastewater. In summary, the device can reduce the harm of wastewater discharge and keep the wastewater flowing smoothly.

Claims

1. A waste heat recovery device for printing and dyeing wastewater, characterized in that: It includes a connecting pipe (9) and a water storage bin (10). The connecting pipe (9) is arranged at the upper end of the side of the water storage bin (10). One end of the connecting pipe (9) is provided with a cover plate (12), and a filter layer (13) is arranged in the middle of the cover plate (12). Plug blocks (16) are arranged at the upper and lower ends of the side of the cover plate (12). Slots (15) are arranged at the upper and lower parts of one end of the connecting pipe (9), and the slots (15) are clamped with the plug blocks (16). One end of the slot (15) is provided with an adjustment bin (17), and a pull rod (18) is arranged inside the adjustment bin (17). One end of the pull rod (18) is fixed with a pull block (19), and the other end of the pull rod (18) is fixed with a push block (14), and the push block (14) is clamped inside the plug block (16). A spring (20) is connected between one end of the push block (14) and the inner wall of the adjustment bin (17). An activated carbon layer (7) is arranged in the connecting pipe (9) corresponding to the filter layer (13).

2. The waste heat recovery device for printing and dyeing wastewater according to claim 1, wherein: A heat preservation layer (11) is arranged on the inner wall of the water storage bin (10), and a bin door (23) is arranged corresponding to the cover plate (12) at one end of the front part of the water storage bin (10).

3. The waste heat recovery device for printing and dyeing wastewater according to claim 2, wherein: A rotating shaft (4) is connected to the upper end inside the water storage bin (10) through a bearing, and bristles (3) are arranged on the outer wall of the lower end of the rotating shaft (4).

4. The waste heat recovery device for printing and dyeing wastewater according to claim 3, wherein: A support cover (6) is arranged at one end of the top of the water storage bin (10), and a motor (5) is arranged inside the support cover (6), and the output end of the motor (5) is fixedly connected to the driving end of the rotating shaft (4).

5. The waste heat recovery device for printing and dyeing wastewater according to claim 1, wherein: One end of the connecting pipe (9) is connected to a drain pipe (8), and a water supply pipe (1) is connected to the lower end of the side of the water storage bin (10).

6. The waste heat recovery device for printing and dyeing wastewater according to claim 5, wherein: A heat exchange pipe (2) is arranged inside the water storage bin (10), and both ends of the heat exchange pipe (2) are fixedly connected to the inside of the water storage bin (10).

7. The waste heat recovery device for printing and dyeing wastewater according to claim 6, wherein: A water inlet (21) is arranged at the lower end of the heat exchange pipe (2), and a water outlet (22) is arranged at the upper end of the heat exchange pipe (2).