A heat pump sewage pretreatment device

Abstract

The application discloses a heat pump sewage pretreatment device, and particularly relates to the technical field of sewage treatment, which comprises a multistage processor, a water inlet and a water outlet are arranged on the multistage processor, a lower partition sleeve and an upper partition sleeve are arranged in the multistage processor, a main shaft is further arranged in the multistage processor, a rotating driver is installed on the top of the multistage processor, the main shaft is fixedly connected with an output shaft of the rotating driver, a plurality of stirring rods are installed at the region corresponding to the water inlet of the main shaft, and a plurality of aeration holes are arranged on the top of the stirring rods. When the rotating driver is used to control the rotation of the stirring rods driven by the main shaft, the aeration holes can also spray air, so that the sewage is stirred by the stirring rods when the sewage is input, the sediments and floating matters are separated, and the aeration of the aeration holes makes the bubbles accelerate the floating of the floating matters, thereby effectively solving the problem that the sediments such as sludge wrap the smaller floating matters and cause the floating matters to be unable to effectively float.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and more specifically, to a heat pump wastewater pretreatment device. Background Technology

[0002] Wastewater source heat pump systems, as a highly efficient renewable energy utilization technology, extract low-grade heat energy from wastewater to achieve building heating and cooling, offering significant energy-saving and environmental benefits. However, raw wastewater has a complex composition and contains a large number of impurities, which can easily lead to blockage, scaling, and corrosion of the system's core components, severely affecting heat exchange efficiency and equipment lifespan. Therefore, wastewater needs to be pretreated before it can be utilized.

[0003] Due to the different sources of wastewater, the impurities contained in the wastewater also vary. Sometimes, there are sediments and floating objects. Although larger impurities are filtered out using hair collectors and screen filters at the beginning, the wastewater still contains a lot of smaller floating objects and sediments. Especially when there is a lot of sludge, the smaller floating objects mix with the sludge, creating a certain degree of adsorption and entrainment. As the sediments sink, they will carry some smaller floating objects downwards, preventing them from floating to the surface temporarily, thus affecting the collection of floating objects. Moreover, during subsequent treatment, as the water flows, the floating objects that were carried downwards will float again and continue to flow downstream with the water, thus affecting the pretreatment effect of the wastewater and impacting the use of the heat pump system. Summary of the Invention

[0004] The present invention provides a heat pump wastewater pretreatment device to solve the problem that existing wastewater contains a large amount of sediment, which is mixed with some smaller floating objects and sludge, resulting in adsorption and entrainment. Consequently, when the sediment settles, it carries some smaller floating objects downwards, affecting the pretreatment effect of the wastewater. To achieve the above objectives, the present invention provides the following technical solution: a heat pump wastewater pretreatment device, comprising a multi-stage processor, wherein the multi-stage processor is provided with an inlet and an outlet, and a lower partition and an upper partition are provided inside the multi-stage processor. The top of the lower partition is fixedly connected to the inner wall of the multi-stage processor, thereby forming a lower partition cavity between the lower partition and the inner wall of the multi-stage processor. The bottom of the upper partition is fixedly connected to the inner wall of the multi-stage processor, thereby forming an upper partition cavity between the upper partition and the inner wall of the multi-stage processor. The inlet is located in the area between the upper partition and the lower partition. The multi-stage processor also has a main shaft inside, and a rotary driver is installed on the top of the multi-stage processor. The main shaft is fixedly connected to the output shaft of the rotary driver. Multiple stirring rods are installed on the main shaft in the area corresponding to the water inlet. The stirring rods are mounted on the main shaft through sleeves and are fixedly mounted on the sleeves. The stirring rods are horizontally arranged flat rod structures. Multiple aeration holes are provided on the top of the stirring rods. An air supply component is connected to the inner cavity of the stirring rods through the main shaft.

[0005] Preferably, the outlet is connected to the top area of ​​the lower partition chamber, and the multi-stage processor is also equipped with a floating debris collection pipe, which is connected to the upper partition chamber. Inside the multi-stage processor, a conical partition cover is fixedly installed in the area at the bottom of the lower partition. The middle of the conical partition cover is recessed to the west and is provided with a discharge port. The inner area of ​​the upper partition forms a floating zone, and the area below the conical partition cover forms a sedimentation zone. A sedimentation discharge pipe is also provided at the bottom of the multi-stage processor corresponding to the sedimentation zone. Corresponding opening and closing control valves are provided on the connecting pipes of the inlet, outlet, sedimentation discharge pipe and floating debris collection pipe.

[0006] Preferably, the main shaft is a hollow rod, and a transfer docking sleeve is fixedly installed on the top of the multi-stage processor in the area corresponding to the top of the main shaft. The transfer docking sleeve is fitted onto the outside of the main shaft, and a docking ring cavity is provided inside the transfer docking sleeve. An air supply pipe is fixedly installed on the transfer docking sleeve and communicates with the docking ring cavity. A connecting hole is provided on the main shaft at the position corresponding to the docking ring cavity. The air supply pipe is connected to an air supply assembly, which includes an air supply pump. A first docking hole is provided on the area of ​​the main shaft corresponding to the stirring rod, and the first docking hole is used to communicate with the inner cavity of the stirring rod.

[0007] Preferably, a stirring plate is also installed in the area where the main shaft is located inside the lower partition sleeve. The stirring plate is a vertically arranged thin plate structure, which drives the stirring plate to rotate together when the main shaft rotates.

[0008] Preferably, a floating plate is fixedly installed in the area corresponding to the lower spacer of the spindle, and a lifting frame is provided on the top of the multi-stage processor. The lifting frame is driven by a lifting driver to perform lifting and lowering movements, and a rotary driver is fixedly installed on the lifting frame.

[0009] Preferably, the floating plate is provided with multiple upward convex parts, and the upward convex parts are provided with material transmission windows. Multiple flip bars are rotatably installed inside the material transmission windows. The multiple flip bars are installed in two groups on the two sides of the sleeve rod, and the two groups of flip bars are distributed alternately in sequence. A floating head is fixedly installed at the end of the flip bar that is away from its connection with the material transmission window.

[0010] Preferably, a filter plate is provided in the upper partition cavity, and the filter plate is located in the area below the floating debris collection pipe. A water passage cavity is formed in the area below the filter plate in the upper partition cavity. A drain pipe is fixedly installed at the position of the multi-stage processor corresponding to the water passage cavity. An auxiliary air blowing pipe is also installed on the multi-stage processor in the direction away from the floating debris collection pipe. A limiting protrusion ring is provided on the outer edge of the top of the upper partition sleeve. A conical surface is provided on the top of the limiting protrusion ring. The auxiliary air blowing pipe is connected to the fan structure.

[0011] Preferably, the sleeve extends downward and slides onto the main shaft. The stirring plate is fixedly installed on the sleeve, and the stirring plate has a first water outlet hole inside. The bottom end of the sleeve extends to the bottom of the conical partition cover and is fixedly connected to a conical plug. The middle part of the conical plug protrudes upward and is positioned corresponding to the lower opening of the conical partition cover. The bottom of the conical plug has a second water outlet hole. The sleeve has a connecting channel in the area corresponding to the inner cavity of the stirring rod and the area corresponding to the inner cavity of the stirring plate and the conical plug. The main shaft also has a second docking hole and a third docking hole.

[0012] Preferably, the main shaft is slidably disposed within the transfer docking sleeve, and a water supply pipe is also fixedly installed on the transfer docking sleeve. The water supply pipe is connected to a water supply assembly, which includes a liquid supply pump. Control valves are installed on the pipes connected to the air supply pipe and the water supply pipe.

[0013] Preferably, a fixing seat is fixedly installed in the area at the top of the sleeve rod of the main shaft. An elastic element is provided between the fixing seat and the first docking hole. The elastic element is used to provide an upward elastic force to the first docking hole. When the elastic element is normally extended, the first docking hole is docked with the corresponding communication channel of the inner cavity of the stirring rod. At the same time, the second docking hole is misaligned with the corresponding communication channel of the inner cavity of the stirring plate, and the third docking hole is misaligned with the corresponding communication channel of the inner cavity of the conical plug. When the main shaft moves upward and the conical plug is sealed with the lower opening of the conical partition cover, the main shaft continues to rise, causing the first docking hole to misalign with the corresponding communication channel of the inner cavity of the stirring rod. At the same time, the second docking hole is docked with the corresponding communication channel of the inner cavity of the stirring plate, and the third docking hole is docked with the corresponding communication channel of the inner cavity of the conical plug.

[0014] The beneficial effects of this invention are as follows: 1. When the main shaft is controlled by the rotary driver to drive the stirring rod to rotate, the present invention can also provide air from the air supply pump into the inner cavity of the main shaft through the docking ring cavity and the connecting hole, and then deliver it to the inner cavity of the stirring rod through the first docking hole and spray it out from the aeration hole to form aeration. Thus, when sewage is input, the sewage is first stirred by the stirring rod to separate the sediment and floating matter. Then, with the help of aeration from the aeration hole, the air bubbles accelerate the floating matter to float to the surface, thereby effectively solving the problem that sludge and other sediments can trap smaller floating matter, preventing the floating matter from floating effectively.

[0015] 2. By setting up a lower and upper partition, this invention enables the collection, aeration, and sedimentation of floating matter within a multi-stage processor, thus completing multi-stage wastewater treatment and effectively improving wastewater treatment efficiency. Furthermore, when it is necessary to remove sediment and floating matter, the equipment does not need to be shut down and can be operated while the equipment is running, thereby further improving treatment efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the multi-level processor of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of the A-section structure; Figure 4 For the present invention Figure 2 Enlarged view of the structure of section B; Figure 5 This is a schematic diagram of the improved internal structure of the multi-level processor of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of the C-section structure; Figure 7 This is a schematic diagram of the structure when the material-permeable window of the present invention is open; Figure 8 This is a schematic diagram of the structure of the present invention when the material-permeable window is closed; Figure 9 This is a top view of the floating plate of the present invention; Figure 10 For the present invention Figure 5 Enlarged view of the structure of part D; Figure 11 For the present invention Figure 5 Enlarged view of the E-section structure; Figure 12 This is a diagram showing the state when the second connecting hole and the first water outlet hole are connected. Figure 13 This is a diagram showing the state when the third connecting hole and the second water outlet hole of the present invention are connected.

[0017] The attached diagram is labeled as follows: 1. Multi-stage processor; 11. Inlet; 12. Outlet; 13. Sedimentation discharge pipe; 14. Floating matter collection pipe; 141. Auxiliary air blowing pipe; 15. Lower partition sleeve; 151. Lower partition chamber; 16. Upper partition sleeve; 161. Upper partition chamber; 162. Filter plate; 163. Water passage chamber; 164. Drain pipe; 165. Limiting protrusion ring; 17. Conical partition cover; 2. Preliminary filter; 3. Rotary actuator; 31. Lifting frame; 32. Lifting actuator 4. Main shaft; 41. Connecting hole; 42. First docking hole; 43. Fixed seat; 44. Second docking hole; 45. Third docking hole; 5. Stirring rod; 51. Aeration hole; 52. Sleeve rod; 53. Conical plug; 54. Second water outlet; 6. Stirring plate; 61. First water outlet; 7. Transfer docking sleeve; 71. Docking ring cavity; 72. Air supply pipe; 73. Water supply pipe; 8. Floating plate; 81. Upper protrusion; 82. Material penetration window; 83. Tilting bar; 84. Floating head. Detailed Implementation

[0018] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0019] Refer to the instruction manual appendix Figure 1 and Figure 2 A heat pump wastewater pretreatment device includes a multi-stage processor 1 and a preliminary filter 2. The multi-stage processor 1 is provided with an inlet 11 and an outlet 12. The preliminary filter 2 is used to filter some larger solid debris such as plastic bags and stones. The preliminary filter 2 is connected to the inlet 11, and the outlet 12 is connected to the subsequent treatment equipment and the heat pump system.

[0020] Refer to the instruction manual appendix Figure 2The multi-stage processor 1 includes a lower partition 15 and an upper partition 16. The top of the lower partition 15 is fixedly connected to the inner wall of the multi-stage processor 1, forming a lower partition cavity 151 between the lower partition 15 and the inner wall of the multi-stage processor 1. Similarly, the bottom of the upper partition 16 is fixedly connected to the inner wall of the multi-stage processor 1, forming an upper partition cavity 161 between the upper partition 16 and the inner wall of the multi-stage processor 1. This results in an opening at the bottom of the lower partition cavity 151 and an opening at the top of the upper partition cavity 161. An inlet 11 is located between the upper partition 16 and the lower partition 15, and an outlet 12 is located between the lower partition cavity 151 and the upper partition cavity 161. The top area is connected, and a floating debris collection pipe 14 is also provided on the multi-stage processor 1. The floating debris collection pipe 14 is connected to the upper partition cavity 161. A conical partition cover 17 is also fixedly installed in the area at the bottom of the lower partition sleeve 15 inside the multi-stage processor 1. The middle part of the conical partition cover 17 is recessed to the west and is provided with a discharge port. The inner area of ​​the upper partition sleeve 16 forms a floating area, and the area below the conical partition cover 17 forms a sedimentation area. A sedimentation discharge pipe 13 is also provided in the area at the bottom of the multi-stage processor 1 corresponding to the sedimentation area. Corresponding opening and closing control valves are respectively provided on the connecting pipes of the inlet 11, outlet 121, sedimentation discharge pipe 13 and floating debris collection pipe 14.

[0021] It should be noted that during use, after the wastewater passes through the preliminary filter 2 to remove large debris, it is discharged into the multi-stage processor 1 through the inlet 11. At this time, the wastewater first flows downward from the central area of ​​the lower partition 15, and then forms an upward reverse flow in the area of ​​the lower partition cavity 151, before being discharged through the outlet 12. During this process, by controlling the flow rate, the top liquid level of the wastewater enters the inner area of ​​the upper partition 16 when the multi-stage processor 1 is working, without overflowing the upper partition 16. As the wastewater flows, floating objects can float upward and accumulate inside the upper partition 16. As the number of floating objects increases, excess floating objects will overflow from the top of the upper partition 16 and enter the upper partition cavity 161 for collection. The floating objects can then be collected through the floating object collection pipe 14 without affecting the continuous processing of the equipment.

[0022] Meanwhile, since the sewage will first flow downward from the inside of the lower partition 15, and the inner diameter of the lower partition 15 is much larger than the diameter of the inlet 11, the flow speed of the sewage is slightly slowed down, and an upward backflow is formed at the bottom of the lower partition 15. Therefore, the sediment can settle in the inner area of ​​the lower partition 15, and when guided by the conical partition 17, the sediment will converge towards the sedimentation area at the bottom of the multi-stage processor 1. Under the obstruction of the conical partition 17, the liquid flow in the area below the conical partition 17 is relatively small, which will not cause the already settled debris to be resuspended, and further prevents the sediment from being discharged from the sedimentation discharge pipe 13 along with the sewage.

[0023] In addition, the multi-stage processor 1 is equipped with a main shaft 4. A rotary driver 3 (e.g., a motor) is installed on the top of the multi-stage processor 1. The main shaft 4 is fixedly connected to the output shaft of the rotary driver 3. The rotary driver 3 can drive the main shaft 4 to rotate. Multiple stirring rods 5 are installed on the main shaft 4 in the area corresponding to the inlet 11. The stirring rods 5 are mounted on the main shaft 4 through a sleeve 52. The stirring rods 5 are fixedly mounted on the sleeve 52. The stirring rods 5 are horizontally arranged flat rod structures. Multiple aeration holes 51 are provided on the top of the stirring rods 5. The inner cavity of the stirring rods 5 is connected to an air supply component through the main shaft 4, so that the aeration holes 51 can output gas while rotating, thus aerating the sewage.

[0024] Further, please refer to the appendix to the instruction manual. Figure 3 and Figure 4 The main spindle 4 is a hollow rod. A transfer docking sleeve 7 is fixedly installed on the top of the multi-stage processor 1, corresponding to the top of the main spindle 4. The transfer docking sleeve 7 is fitted onto the outside of the main spindle 4. A docking ring cavity 71 is provided inside the transfer docking sleeve 7. An air supply pipe 72 is fixedly installed on the transfer docking sleeve 7 and communicates with the docking ring cavity 71. A connecting hole 41 is provided on the main spindle 4 at the position corresponding to the docking ring cavity 71. The air supply pipe 72 is connected to an air supply assembly, which includes an air supply pump. A first docking hole 42 is provided on the main spindle 4 in the area corresponding to the stirring rod 5. The first docking hole 42 is used to communicate with the inner cavity of the stirring rod 5, thereby allowing the first docking hole 42 to... It is also connected to the aeration hole 51, so that when the main shaft 4 is controlled by the rotary driver 3 to drive the stirring rod 5 to rotate, the air supply pump can also provide air into the inner cavity of the main shaft 4 through the docking ring cavity 71 and the connecting hole 41, and then deliver it to the inner cavity of the stirring rod 5 through the first docking hole 42, and spray it out from the aeration hole 51 to form aeration. Thus, when sewage is input, the sewage is first stirred by the stirring rod 5 to separate the sediment and floating matter, and then the aeration of the aeration hole 51 makes the bubbles accelerate the floating matter to float, thereby effectively solving the problem that sludge and other sediments can trap smaller floating matter, causing the floating matter to be unable to float effectively.

[0025] Furthermore, a stirring plate 6 is installed in the area of ​​the main shaft 4 located inside the lower partition 15. The stirring plate 6 is a vertically arranged thin plate structure. When the main shaft 4 rotates, it drives the stirring plate 6 to rotate together (without high-speed rotation), so that the sewage inside the lower partition 15 rotates to a certain extent. Then, under the action of centrifugal force, the sediment can be thrown onto the inner wall of the lower partition 15 and gradually slide down, improving the collection effect of sediment.

[0026] Refer to the instruction manual appendix Figure 5In order to improve the processing effect of the multi-level processor 1, this embodiment also provides the following technical solution: a floating plate 8 is fixedly installed in the area of ​​the spindle 4 corresponding to the lower spacer 15, and a lifting frame 31 is provided on the top of the multi-level processor 1. The lifting frame 31 is driven by the lifting driver 32 (which can be a hydraulic cylinder installed on the top of the multi-level processor 1, and the lifting frame 31 is installed on the top of the multi-level processor 1 through a guide column) to perform lifting and lowering movements. The rotation driver 3 is fixedly installed on the lifting frame 31.

[0027] Further, please refer to the appendix to the instruction manual. Figure 6 and Figure 8 The floating plate 8 is provided with multiple upward protrusions 81, and the upward protrusions 81 are provided with material transmission windows 82. Multiple flip bars 83 are rotatably installed inside the material transmission windows 82. The multiple flip bars 83 are installed in two groups on the two sides of the sleeve rod 52, and the two groups of flip bars 83 are alternately distributed in sequence. A floating head 84 is fixedly installed at the end of the flip bar 83 away from its connection with the material transmission window 82.

[0028] In actual use, when the floating plate 8 is in the lowered state and completely submerged in sewage, refer to the instruction manual appendix. Figure 7 Under the buoyancy of the float 84, the tilting bar 83 tilts upward, thus fully opening the material passage window 82, allowing floating debris to pass through. When cleaning is needed, the lifting frame 31 can be raised, causing the main shaft 4 to lift the floating plate 8 as well. As the tilting bar 83 gradually emerges from the water surface, it gradually tilts downward to block the material passage window 82. Refer to the attached instruction manual. Figure 8 This allows the floating plate 8 to lift most of the floating debris upwards, making it more effectively enter the upper partition cavity 161. With the help of the rotation driver 3 to control the rotation of the main shaft 4, the floating plate 8 is driven to rotate, and under the action of centrifugal force, the debris can be more effectively thrown into the upper partition cavity 161.

[0029] In addition, please refer to the appendix to the instruction manual. Figure 5 and Figure 11A filter plate 162 is installed inside the upper partition cavity 161. The filter plate 162 is located in the area below the floating matter collection pipe 14. A water passage cavity 163 is formed in the area below the filter plate 162 in the upper partition cavity 161. A drain pipe 164 is fixedly installed at the position of the multi-stage processor 1 corresponding to the water passage cavity 163. When floating matter enters the upper partition cavity 161, it can be slowly filtered, allowing water to enter the water passage cavity 163 and be discharged through the drain pipe 164. At the same time, an auxiliary air blowing pipe 141 is also installed on the multi-stage processor 1 in the direction away from the floating matter collection pipe 14. A limiting protrusion ring 165 is provided on the outer edge of the top of the upper partition sleeve 16. The top of the limiting protrusion ring 165 is provided with a conical surface. The auxiliary air blowing pipe 141 is connected to a fan structure, which can blow air into the upper partition cavity 161. This accelerates the drying of the floating matter and can blow the floating matter towards the floating matter collection pipe 14 for easy collection.

[0030] It should be noted that when using the floating object collection tube 14 to collect floating objects, the floating object collection tube 14 can be connected to a vacuum cleaner structure for direct air extraction and collection, or the floating object collection tube 14 can be set as a window structure, and collection can be carried out by opening the window. If necessary, a scraper can also be set in the upper partition cavity 161, and the floating objects can be scraped towards the floating object collection tube 14 by means of the rotation of the main shaft 4 for collection. In addition, the corresponding collection method can be freely selected according to actual needs, which will not be explained in detail in this embodiment.

[0031] Furthermore, the sleeve 52 extends downward and slides onto the main shaft 4. A guide structure (such as a guide key) is provided between the sleeve 52 and the main shaft 4 to prevent the sleeve 52 from rotating relative to the main shaft 4. (See also the appendix to the instruction manual.) Figure 12 and Figure 13 The stirring plate 6 is fixedly installed on the sleeve rod 52. The stirring plate 6 has a first water outlet 61 inside. The bottom end of the sleeve rod 52 extends to the bottom of the conical partition cover 17 and is fixedly connected to the conical plug 53. The middle part of the conical plug 53 protrudes upward and is set to correspond to the lower opening of the conical partition cover 17. The bottom of the conical plug 53 has a second water outlet 54. The sleeve rod 52 has a connecting channel in the inner cavity of the stirring rod 5 and in the area corresponding to the inner cavity of the stirring plate 6 and the conical plug 53. The main shaft 4 is also provided with a second docking hole 44 and a third docking hole 45.

[0032] Refer to the instruction manual appendix Figure 10The main shaft 4 is slidably installed in the intermediate docking sleeve 7, and the docking ring cavity 71 has a certain height to ensure that the connecting hole 41 is within the range covered by the docking ring cavity 71 during the up and down movement of the main shaft 4. At the same time, a water supply pipe 73 is also fixedly installed on the intermediate docking sleeve 7. The water supply pipe 73 is connected to the water supply assembly, which includes a liquid supply pump. Control valves are installed on the pipes connected to the air supply pipe 72 and the water supply pipe 73.

[0033] Refer to the instruction manual appendix Figure 6 A fixed base 43 is fixedly installed on the top of the sleeve rod 52 of the main shaft 4. An elastic element (such as a tension spring) is provided between the fixed base 43 and the first docking hole 42. The elastic element provides an upward elastic force to the first docking hole 42. When the elastic element is normally extended without external force, the first docking hole 42 is connected to the inner cavity of the stirring rod 5 (that is, the corresponding connecting channel of the first docking hole 42 and the inner cavity of the stirring rod 5 is connected). At the same time, the corresponding connecting channel of the second docking hole 44 and the inner cavity of the stirring plate 6 is misaligned, and the corresponding connecting channel of the third docking hole 45 and the inner cavity of the conical plug 53 is misaligned. That is, at this time, the first docking hole 42 is connected to the aeration hole 51, but the second docking hole 44 is not connected to the first water outlet 61, and the third docking hole 45 is not connected to the second water outlet 54. Furthermore, closing the water supply pipe 73 and opening the air supply pipe 72 will allow the aeration hole 51 to aerate, while the first water outlet 61 and the second water outlet 54 will not operate.

[0034] After the equipment has been used for a period of time, the rotary drive 3 can be controlled to move upward and the main shaft 4 can be pulled upward, corresponding to the action of controlling the floating plate 8 to rise to lift the floating objects in the above scheme. At this time, the sleeve rod 52 and the conical plug 53, supported by the elastic element at the bottom of the fixed seat 43, first rise, and then the conical plug 53 stops rising after sealing the lower opening of the conical partition cover 17. After the main shaft 4 continues to rise, the communication channel corresponding to the first docking hole 42 and the inner cavity of the stirring rod 5 will be misaligned. At the same time, the second docking hole 44 will be connected to the communication channel corresponding to the inner cavity of the stirring plate 6, and the third docking hole 45 will be connected to the communication channel corresponding to the inner cavity of the conical plug 53. That is, at this time, the first docking hole 42 is not connected to the aeration hole 51, but the second docking hole 44 is connected to the aeration hole 51. The docking hole 44 is connected to the first water outlet 61, and the third docking hole 45 is connected to the second water outlet 54. Furthermore, the air supply pipe 72 is closed and the water supply pipe 73 is opened, and water is sprayed from the first water outlet 61 and the second water outlet 54, while the aeration hole 51 does not operate. In addition, the water supply component connected to the water supply pipe 73 provides clean water, and the liquid supply pump used can also be a high-pressure pump. Thus, the clean water sprayed from the first water outlet 61 and the second water outlet 54 can form a certain rinsing effect on the lower partition 15 and the sedimentation area of ​​the multi-stage processor 1. Since the lower opening of the conical partition 17 is closed, the sedimentation discharge pipe 13 can be opened to centrally discharge the sediment in the sedimentation area, and combined with the clean water sprayed from the second water outlet 54, the cleaning effect on the sedimentation area is improved.

[0035] It should be noted that, at the same time, by setting the lower partition 15 and the upper partition 16, the present invention can realize the collection, aeration and sedimentation of floating matter within the multi-stage processor 1, thus completing the multi-stage treatment of sewage and effectively improving the sewage treatment efficiency. Moreover, when it is necessary to remove sediment and floating matter, there is no need to stop the equipment; the operation can be carried out while the equipment is running, thereby further improving the treatment efficiency.

[0036] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A heat pump wastewater pretreatment device, comprising a multi-stage processor (1), wherein the multi-stage processor (1) is provided with an inlet (11) and an outlet (12), characterized in that: The multi-stage processor (1) is provided with a lower partition (15) and an upper partition (16). The top of the lower partition (15) is fixedly connected to the inner wall of the multi-stage processor (1), and a lower partition cavity (151) is formed between the lower partition (15) and the inner wall of the multi-stage processor (1). The bottom of the upper partition (16) is fixedly connected to the inner wall of the multi-stage processor (1), and an upper partition cavity (161) is formed between the upper partition (16) and the inner wall of the multi-stage processor (1). The water inlet (11) is located in the area between the upper partition (16) and the lower partition (15). The multi-stage processor (1) is also equipped with a main shaft (4). A rotary driver (3) is installed on the top of the multi-stage processor (1). The main shaft (4) is fixedly connected to the output shaft of the rotary driver (3). Multiple stirring rods (5) are installed on the main shaft (4) in the area corresponding to the inlet (11). The stirring rods (5) are installed on the main shaft (4) through a sleeve (52). The stirring rods (5) are fixedly installed on the sleeve (52). The stirring rods (5) are horizontally arranged flat rod structures. Multiple aeration holes (51) are provided on the top of the stirring rods (5). An air supply component is connected to the inner cavity of the stirring rods (5) through the main shaft (4).

2. The heat pump wastewater pretreatment device according to claim 1, characterized in that: The outlet (12) is connected to the top area of ​​the lower partition cavity (151). The multi-stage processor (1) is also provided with a floating object collection pipe (14), which is connected to the upper partition cavity (161). The area inside the multi-stage processor (1) located at the bottom of the lower partition sleeve (15) is also fixedly installed with a conical partition cover (17). The middle part of the conical partition cover (17) is recessed to the west and is provided with a discharge port. The inner area of ​​the upper partition sleeve (16) forms a floating area. The area below the conical partition cover (17) forms a sedimentation area. The area at the bottom of the multi-stage processor (1) corresponding to the sedimentation area is also provided with a sedimentation discharge pipe (13). The connecting pipes of the inlet (11), outlet (12), sedimentation discharge pipe (13) and floating object collection pipe (14) are respectively provided with corresponding opening and closing control valves.

3. The heat pump wastewater pretreatment device according to claim 2, characterized in that: The main shaft (4) is a hollow rod. A transfer docking sleeve (7) is fixedly installed on the top of the multi-stage processor (1) in the area corresponding to the top of the main shaft (4). The transfer docking sleeve (7) is fitted on the outside of the main shaft (4). A docking ring cavity (71) is provided inside the transfer docking sleeve (7). An air supply pipe (72) is fixedly installed on the transfer docking sleeve (7). The air supply pipe (72) is connected to the docking ring cavity (71). A connecting hole (41) is provided at the position of the main shaft (4) corresponding to the docking ring cavity (71). The air supply pipe (72) is connected to the air supply assembly. The air supply assembly includes an air supply pump. A first docking hole (42) is provided in the area of ​​the main shaft (4) corresponding to the stirring rod (5). The first docking hole (42) is used to communicate with the inner cavity of the stirring rod (5).

4. The heat pump wastewater pretreatment device according to claim 3, characterized in that: The main shaft (4) is also equipped with a stirring plate (6) in the area inside the lower partition (15). The stirring plate (6) is a vertically arranged thin plate structure. When the main shaft (4) rotates, it drives the stirring plate (6) to rotate together.

5. A heat pump wastewater pretreatment device according to claim 4, characterized in that: A floating plate (8) is fixedly installed in the area corresponding to the lower spacer (15) of the main shaft (4). A lifting frame (31) is provided on the top of the multi-level processor (1). The lifting frame (31) is driven by the lifting driver (32) to perform lifting and lowering movements. The rotation driver (3) is fixedly installed on the lifting frame (31).

6. The heat pump wastewater pretreatment device according to claim 5, characterized in that: The floating plate (8) is provided with a plurality of upwardly protruding parts (81), and the upwardly protruding parts (81) are provided with material-penetrating windows (82). Multiple flip bars (83) are rotatably installed inside the material-penetrating windows (82). The multiple flip bars (83) are installed in two groups on the two sides of the sleeve rod (52), and the two groups of flip bars (83) are alternately distributed in sequence. A floating head (84) is fixedly installed at the end of the flip bar (83) away from its connection with the material-penetrating window (82).

7. A heat pump wastewater pretreatment device according to claim 6, characterized in that: A filter plate (162) is provided in the upper partition cavity (161). The filter plate (162) is located in the area below the floating object collection pipe (14). A water passage cavity (163) is formed in the area below the filter plate (162) of the upper partition cavity (161). A drain pipe (164) is fixedly installed on the multi-stage processor (1) at the position corresponding to the water passage cavity (163). An auxiliary air blowing pipe (141) is also installed on the multi-stage processor (1) in the direction away from the floating object collection pipe (14). A limiting protrusion ring (165) is provided on the outer edge of the top of the upper partition sleeve (16). A conical surface is provided on the top of the limiting protrusion ring (165). The auxiliary air blowing pipe (141) is connected to the fan structure.

8. A heat pump wastewater pretreatment device according to claim 7, characterized in that: The sleeve (52) extends downward and is slidably mounted on the main shaft (4). The stirring plate (6) is fixedly mounted on the sleeve (52). The stirring plate (6) has a first water outlet (61) inside. The bottom end of the sleeve (52) extends to the bottom of the conical partition cover (17) and is fixedly connected to a conical plug (53). The middle part of the conical plug (53) protrudes upward and is positioned corresponding to the lower opening of the conical partition cover (17). The bottom of the conical plug (53) has a second water outlet (54). The sleeve (52) has a connecting channel in the inner cavity of the stirring rod (5) and in the area corresponding to the inner cavity of the stirring plate (6) and the conical plug (53). The main shaft (4) also has a second docking hole (44) and a third docking hole (45).

9. A heat pump wastewater pretreatment device according to claim 8, characterized in that: The main shaft (4) is slidably disposed in the transfer docking sleeve (7). A water supply pipe (73) is also fixedly installed on the transfer docking sleeve (7). The water supply pipe (73) is connected to the water supply assembly. The water supply assembly includes a liquid supply pump. Control valves are provided on the pipes connected to the air supply pipe (72) and the water supply pipe (73).

10. A heat pump wastewater pretreatment device according to claim 9, characterized in that: A fixing seat (43) is fixedly installed on the top area of ​​the main shaft (4) at the top of the sleeve (52). An elastic element is provided between the fixing seat (43) and the first docking hole (42). The elastic element is used to provide an upward elastic force to the first docking hole (42). When the elastic element is normally extended, the first docking hole (42) is connected to the corresponding communication channel of the inner cavity of the stirring rod (5). At the same time, the second docking hole (44) is misaligned with the corresponding communication channel of the inner cavity of the stirring plate (6), and the third docking hole (45) is misaligned. When the main shaft (4) moves upward and the conical plug (53) and the conical partition cover (17) are sealed, the main shaft (4) continues to rise, causing the first docking hole (42) and the inner cavity of the stirring rod (5) to be misaligned. At the same time, the second docking hole (44) and the inner cavity of the stirring plate (6) are connected, and the third docking hole (45) and the inner cavity of the conical plug (53) are connected.

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