Sludge low-temperature drying and dewatering coupling equipment based on heat pump waste heat recovery

Abstract

The utility model discloses sludge low-temperature drying and dewatering coupling equipment based on heat pump waste heat recovery, which belongs to the technical field of sludge drying treatment and comprises a drying box, a coupling box is fixedly connected to one side of the drying box, a partition plate is mounted in the middle of the inner wall of the coupling box, and a gas-liquid separator is fixedly connected to the top of the partition plate. Four heat conduction pipes are installed on one side of the gas-liquid separator, and a heat pump body is fixedly installed at the position, located at the bottom of the partition plate, of the coupling box. According to the sludge low-temperature drying and dewatering coupling equipment based on heat pump waste heat recovery, a first air pump, a heat pump body, a heat conduction pipe and an air outlet seat are arranged, and air enters a gas-liquid separator through an air inlet seat and an air guide pipe, so that the air can penetrate through the heat conduction pipe at the top of the gas-liquid separator; and residual heat in the gas is transferred into the drying box through the heat conduction pipe to be recycled, so that the heat is recycled, and the waste heat utilization efficiency of the equipment is improved.

Description

Technical Field

[0001] This utility model belongs to the field of sludge drying and treatment technology, specifically a coupled device for low-temperature drying and dehydration of sludge based on heat pump waste heat recovery. Background Technology

[0002] Sludge is a solid sediment produced during water and wastewater treatment processes. It is a byproduct of wastewater treatment, an extremely complex heterogeneous body composed of organic debris, bacterial cells, inorganic particles, and colloids. The main characteristics of sludge are high water content, high organic matter content, easy decomposition and foul odor, fine particles, low specific gravity, and a colloidal liquid state. Sludge heat pumps use a refrigeration system to cool and dehumidify the humid air from the drying chamber, while simultaneously recovering the latent heat of condensation to reheat the dry air. This combination of dehumidification and heat pump technology achieves energy recycling during the drying process. In existing equipment, after sludge treatment, the air carrying residual heat directly enters the gas-liquid separator for further processing, resulting in low efficiency in utilizing waste heat and causing waste. Utility Model Content

[0003] To overcome the above-mentioned defects, this utility model provides a coupled device for low-temperature drying and dehydration of sludge based on heat pump waste heat recovery. This solves the problem that when the equipment is used, the residual temperature carried by the air after the sludge is processed directly enters the gas-liquid separator for further processing, resulting in low efficiency of air waste heat utilization and waste.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a low-temperature drying and dehydration coupling device for sludge based on waste heat recovery from a heat pump, comprising a drying box, a coupling box fixedly connected to one side of the drying box, a partition plate installed in the middle of the inner wall of the coupling box, a gas-liquid separator fixedly connected to the top of the partition plate, four heat-conducting pipes installed on one side of the gas-liquid separator, a heat pump body fixedly installed at the bottom of the partition plate in the coupling box, a first air pump installed on one side of the heat pump body, an air outlet seat installed through the coupling box on one side of the first air pump, the air outlet seat being fixedly connected to the bottom of the drying box, and the heat-conducting pipes being fixedly connected to the top of the air outlet seat through the coupling box, an air inlet seat installed at the top of the drying box, a second air pump installed through the drying box at the top of the air inlet seat, a gas guide pipe provided on one side of the second air pump, and the gas guide pipe being fixedly connected to the top of the gas-liquid separator.

[0005] As a further embodiment of this utility model: a feeding seat is provided on one side of the top of the drying box, and two motors are provided on one side of the drying box.

[0006] As a further embodiment of this utility model: a linkage belt structure is installed on one side of the motor via an output shaft, and a transmission gear structure is installed on one side of the linkage belt structure.

[0007] As a further embodiment of this utility model: the two transmission gears of the transmission gear structure pass through the drying box and are equipped with a sludge forming rod, the sludge forming rod being rotatably connected to the inner wall of the drying box.

[0008] As a further embodiment of this utility model: the motor output shaft passes through the linkage belt structure and is installed with a conveyor belt structure, and the conveyor belt structure is rotatably connected to the inside of the drying box. Inside the drying box, a guide block is fixedly connected to one end of the conveyor belt structure, and the position of the guide block corresponds to that of the sludge forming rod.

[0009] As a further embodiment of this utility model: a material carrier is slidably connected to the bottom of the drying box, and a handle is fixedly connected to one side of the material carrier.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This coupled low-temperature drying and dehydration equipment for sludge based on waste heat recovery from a heat pump consists of a first air pump, a heat pump body, a heat pipe, and an air outlet. The first air pump guides the gas processed by the heat pump body to the air outlet, allowing the gas to flow into the drying chamber to dry the sludge inside. After drying, the gas is drawn into the air inlet by a second air pump, and then enters the gas-liquid separator through the air inlet and the air guide pipe. The gas can then pass through the heat pipe at the top of the gas-liquid separator, transferring the residual heat in the gas to the inside of the drying chamber for recovery and reuse. This achieves heat recovery and utilization, improving the equipment's waste heat utilization efficiency.

[0012] 2. This sludge low-temperature drying and dewatering coupling equipment based on heat pump waste heat recovery is equipped with a motor, a linkage belt structure, a transmission gear structure, and a sludge forming rod. The motor drives the conveyor belt structure to transport the sludge through its output shaft. At the same time, the motor drives the transmission gear structure to rotate through the linkage belt structure. The transmission gear structure can drive the sludge forming rod to squeeze the sludge, causing the high-moisture-content sludge inside the sludge to turn out and remix with the surface-dried sludge, thus facilitating the drying process of the sludge. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a cross-sectional structural diagram of the drying box and motor of this utility model;

[0015] Figure 3 This is a schematic diagram of the air guide tube and air outlet seat structure of this utility model;

[0016] In the diagram: 1. Drying box; 2. Coupling box; 3. Gas-liquid separator; 4. Heat pipe; 5. Divider plate; 6. Heat pump body; 7. First air pump; 8. Air outlet seat; 9. Air inlet seat; 10. Second air pump; 11. Air guide pipe; 12. Feed seat; 13. Motor; 14. Linkage belt structure; 15. Transmission gear structure; 16. Sludge forming rod; 17. Conveyor belt structure; 18. Guide block; 19. Loading box; 20. Handle. Detailed Implementation

[0017] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0018] like Figure 1-3 As shown, this utility model provides a technical solution: a sludge low-temperature drying and dehydration coupling device based on heat pump waste heat recovery, including a drying box 1, a feeding seat 12 is provided on one side of the top of the drying box 1, and two motors 13 are provided on one side of the drying box 1. By setting the feeding seat 12, sludge can be poured into the drying box 1 through the feeding seat 12, thereby facilitating the feeding and processing of sludge.

[0019] A linkage belt structure 14 is installed on one side of the motor 13 via an output shaft. A transmission gear structure 15 is installed on one side of the linkage belt structure 14. Two transmission gears of the transmission gear structure 15 pass through the drying box 1 and a sludge forming rod 16 is installed thereon. The sludge forming rod 16 is rotatably connected to the inner wall of the drying box 1. By setting up the motor 13, the motor 13 can simultaneously drive the linkage belt structure 14 and the conveyor belt structure 17 to rotate. So that while the conveyor belt structure 17 is conveying sludge, the linkage belt structure 14 can drive the sludge forming rod 16 to rotate together through the transmission gear structure 15.

[0020] The output shaft of motor 13 passes through the linkage belt structure 14 and is equipped with a conveyor belt structure 17. The conveyor belt structure 17 is rotatably connected to the inside of the drying box 1. By setting the conveyor belt structure 17, the gas discharged from the air outlet 8 can pass through the conveyor belt structure 17 to dry the sludge on the top of the conveyor belt structure 17, thereby facilitating the rapid drying of the sludge.

[0021] Inside the drying box 1, a guide block 18 is fixedly connected to one end of the conveyor belt structure 17, and the guide block 18 corresponds to the position of the sludge forming rod 16. By setting the guide block 18, the guide block 18 can pour the sludge on the conveyor belt structure 17 into the sludge forming rod 16, so that the sludge forming rod 16 can remix the sludge.

[0022] A material container 19 is slidably connected to the bottom of the drying box 1. A handle 20 is fixedly connected to one side of the material container 19. By setting up the material container 19, the material container 19 can collect the sludge after drying inside the drying box 1, making it convenient to take out the drying box 1 later.

[0023] A coupling box 2 is fixedly connected to one side of the drying box 1. A partition plate 5 is installed in the middle of the inner wall of the coupling box 2. A gas-liquid separator 3 is fixedly connected to the top of the partition plate 5. Four heat-conducting pipes 4 are installed on one side of the gas-liquid separator 3. A heat pump body 6 is fixedly installed at the bottom of the partition plate 5 in the coupling box 2. By setting up the gas-liquid separator 3, the hot and humid gas generated by drying the sludge enters the interior of the gas-liquid separator 3 through the gas pipe 11, so that the gas-liquid separator 3 can separate the gas and the liquid, and the dried gas can be recycled.

[0024] A first air pump 7 is installed on one side of the heat pump body 6. An air outlet seat 8 is installed on one side of the first air pump 7 through the coupling box 2. The air outlet seat 8 is fixedly connected to the bottom of the drying box 1, and the heat conduction pipe 4 passes through the coupling box 2 and is fixed to the top of the air outlet seat 8. An air inlet seat 9 is installed on the top of the drying box 1. A second air pump 10 is installed on the top of the air inlet seat 9 through the drying box 1. A gas guide pipe 11 is provided on one side of the second air pump 10. The gas guide pipe 11 is fixedly connected to the top of the gas-liquid separator 3. By setting the air inlet seat 9, the second air pump 10 can drive the gas inside the drying box 1 to flow to the air inlet seat 9, so that the gas enters the gas guide pipe 11 through the air inlet seat 9, which facilitates the recycling of the gas.

[0025] The working principle of this utility model is as follows:

[0026] In use, sludge is poured into the drying box 1 through the feed seat 12. The motor 13 is started, causing the motor 13 to drive the linkage belt structure 14 and the conveyor belt structure 17 to move together via the output shaft. The linkage belt structure 14 can drive the transmission gear structure 15 to rotate, causing the sludge forming rod 16 on one side of the transmission gear structure 15 to mix and form the sludge as the transmission gear structure 15 rotates. The mixed sludge can then fall onto the conveyor belt structure 17 and be conveyed as the conveyor belt structure 17 moves. At the same time, after the heat pump body 6 heats the gas, the first air pump 7 introduces the gas from the heat pump body 6 into the air outlet seat 8, allowing the gas to pass through the air outlet seat. Air is discharged into the drying chamber 1, allowing air to dry the sludge inside. Then, the second air pump 10 drives the gas to flow into the air inlet 9 through the air inlet seat 9, so that the dried gas can be discharged into the gas-liquid separator 3 through the air inlet seat 9 and the air guide pipe 11. Then, the gas and liquid are separated by the gas-liquid separator 3, so that the dried gas is recycled. The gas can pass through the heat conduction pipe 4, and the residual heat in the gas is introduced into the drying chamber 1 through the heat conduction pipe 4. The sludge on the inner wall of the drying chamber 1 falls into the loading box 19 as the conveyor belt structure 17 rotates, thus completing the drying process of the sludge.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A coupled device for low-temperature drying and dewatering of sludge based on waste heat recovery from a heat pump, comprising a drying chamber (1), characterized in that: A coupling box (2) is fixedly connected to one side of the drying box (1). A partition plate (5) is installed in the middle of the inner wall of the coupling box (2). A gas-liquid separator (3) is fixedly connected to the top of the partition plate (5). Four heat-conducting pipes (4) are installed on one side of the gas-liquid separator (3). A heat pump body (6) is fixedly installed at the bottom of the partition plate (5) of the coupling box (2). A first air pump (7) is installed on one side of the heat pump body (6). One side of the first air pump (7) passes through the coupling box. (2) An air outlet seat (8) is installed. The air outlet seat (8) is fixedly connected to the bottom of the drying box (1). The heat conduction pipe (4) passes through the coupling box (2) and is fixed to the top of the air outlet seat (8). An air inlet seat (9) is installed at the top of the drying box (1). A second air pump (10) is installed at the top of the air inlet seat (9) through the drying box (1). A gas guide pipe (11) is provided on one side of the second air pump (10). The gas guide pipe (11) is fixedly connected to the top of the gas-liquid separator (3).

2. The coupled sludge low-temperature drying and dewatering equipment based on heat pump waste heat recovery according to claim 1, characterized in that: A feeding seat (12) is provided on one side of the top of the drying box (1), and two motors (13) are provided on one side of the drying box (1).

3. The coupled sludge low-temperature drying and dewatering equipment based on heat pump waste heat recovery according to claim 2, characterized in that: A linkage belt structure (14) is installed on one side of the motor (13) via an output shaft, and a transmission gear structure (15) is installed on one side of the linkage belt structure (14).

4. The coupled sludge low-temperature drying and dewatering equipment based on heat pump waste heat recovery according to claim 3, characterized in that: The two transmission gears of the transmission gear structure (15) pass through the drying box (1) and are equipped with sludge forming rods (16), which are rotatably connected to the inner wall of the drying box (1).

5. The coupled sludge low-temperature drying and dewatering equipment based on heat pump waste heat recovery according to claim 4, characterized in that: The output shaft of the motor (13) passes through the linkage belt structure (14) and is equipped with a conveyor belt structure (17). The conveyor belt structure (17) is rotatably connected to the inside of the drying box (1). Inside the drying box (1), at one end of the conveyor belt structure (17), a guide block (18) is fixedly connected, and the guide block (18) corresponds to the position of the sludge forming rod (16).

6. The coupled sludge low-temperature drying and dewatering equipment based on heat pump waste heat recovery according to claim 1, characterized in that: The drying box (1) is slidably connected to the bottom of the inner side of the material box (1), and a handle (20) is fixedly connected to one side of the material box (19).

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