Sludge drying and dewatering treatment device based on low-temperature heat pump

Abstract

The utility model belongs to the technical field of dewatering treatment devices, and particularly relates to a sludge drying and dewatering treatment device based on a low-temperature heat pump, which comprises a drying box, a feed hopper is arranged at the top of the drying box, a low-temperature heat pump component is fixedly mounted at the bottom of the drying box, and a transfer component is arranged in the drying box. A drying assembly is arranged in the drying box, a dispersing assembly is arranged in the feeding hopper, and exhaust grooves are formed in the top of the drying box in an array mode. According to the drying and dewatering device for sludge treatment, water vapor generated during working of the drying and dewatering device for sludge treatment can be conveniently recycled through the cooling pipe and the conical groove, evaporated water vapor generated during drying can flow into the exhaust pipe through the exhaust groove and the air collecting groove, wind power can be generated during working of the micro fan, the exhaust pipe is cooled, and the drying and dewatering device for sludge treatment is convenient to use. And water vapor in the exhaust pipe is condensed into water, and the condensed water source flows into the collecting assembly to be stored, so that the purpose of collecting the water source is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of dehydration treatment devices, in particular to a sludge drying and dehydration treatment device based on a low-temperature heat pump. Background Art

[0002] The sludge drying and dehydration treatment device based on low-temperature heat pump is mainly used for dehydrating and drying sludge. It mainly uses low-temperature heat pump technology to evaporate the water in the sludge, thereby reducing the volume and weight of the sludge and improving the efficiency of its subsequent treatment and disposal. It can effectively reduce the water content of the sludge, reduce the burden of subsequent treatment and transportation costs, and utilize its efficient heat energy recovery function to achieve sludge drying treatment at relatively low energy consumption. The sludge drying and dehydration treatment device based on low-temperature heat pump has important application value in sewage treatment and resource recovery.

[0003] The existing sludge drying and dehydration treatment device based on low-temperature heat pump is not convenient for recovering the steam generated by evaporation when in use, which causes a certain degree of waste of resources. In addition, the water vapor is directly discharged to the outside, which may have an adverse impact on the surrounding environment.

[0004] Patent document CN211521996U discloses a drying and dehydrating device for sludge treatment, "a sludge inlet is provided on one side of the upper end of the supporting shell, and the sludge inlet is connected to the supporting shell by welding, a first heating plate is installed on one side of the upper end of the interior of the supporting shell, the first heating plate is connected to the supporting shell by screws, a first assembly line is installed on one side of the interior of the supporting shell, an anti-fall guardrail is installed on the upper end of the first assembly line, the anti-fall guardrail is connected to the first assembly line by screws, a first sludge scraper is installed at one end of the first assembly line, the first sludge scraper is welded to the supporting shell, a sludge roller pressing assembly line is installed below one end of the first assembly line, and a roller pressing support frame is installed inside the sludge roller pressing assembly line". However, the drying and dehydrating device for sludge treatment in the above-mentioned public document mainly considers increasing the treatment efficiency, but does not consider recovering the water vapor generated by evaporation. Utility Model Content

[0005] The purpose of the utility model is to provide a sludge drying and dehydration treatment device based on a low-temperature heat pump, so as to solve the technical problem of the inconvenience of recovering the generated water vapor proposed in the above background technology.

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a sludge drying and dehydration treatment device based on a low-temperature heat pump, comprising a drying box, a feed hopper is provided on the top of the drying box, a low-temperature heat pump assembly is fixedly installed on the bottom of the drying box, a transfer assembly is provided inside the drying box, a drying assembly is provided inside the drying box, a dispersion assembly is provided inside the feed hopper, an exhaust trough is provided in an array on the top of the drying box, an air collecting trough is installed on the top of the exhaust trough, a strip rack is fixedly installed on the air collecting trough, an exhaust pipe is passed through the strip rack, and one end of the exhaust pipe is connected to the air collecting trough, an air supply assembly is provided on the top of the strip rack, cooling pipes are symmetrically provided inside the strip rack, and the cooling pipe is located on one side of the exhaust pipe, and a collection assembly is connected below the exhaust pipe.

[0007] Preferably, a controller is fixedly installed on the drying box, a support leg is fixedly installed on the bottom of the drying box, and the support leg is located on one side of the low-temperature heat pump assembly, the controller is electrically connected to the low-temperature heat pump assembly, and a discharge chute is fixedly installed inside the drying box.

[0008] Preferably, the transfer assembly includes a No. 1 motor, a conveyor belt and a side panel, the No. 1 motor is fixedly mounted on the drying box, and the No. 1 motor is electrically connected to the controller, the conveyor belt is arranged inside the drying box, and the output end of the No. 1 motor is transmission-connected to the conveyor belt, the side panel is fixedly mounted inside the drying box, and the side panel is located on one side of the conveyor belt, and the conveyor belt is located on one side of the discharge trough.

[0009] Preferably, the dispersion component includes a stirring shaft and a No. 2 motor, the stirring shaft is movably installed inside the feed hopper, the No. 2 motor is fixedly installed on the drying box, and the output end of the No. 2 motor is fixedly connected to one end of the stirring shaft.

[0010] Preferably, the drying assembly includes a circulation pipe and an air jet head. The circulation pipe is fixedly installed inside the drying box. The air jet head array is arranged on the circulation pipe, and the circulation pipe is connected to the low-temperature heat pump assembly.

[0011] Preferably, the collection assembly includes a conical groove, a threaded barrel, a connecting head and a storage barrel, the conical groove is fixedly installed below the exhaust pipe, the threaded barrel is fixedly installed below the conical groove, the connecting head is threadedly connected to the inside of the threaded barrel, and the storage barrel is fixedly installed below the connecting head.

[0012] Preferably, the air supply assembly includes a square frame and a micro fan, the square frame is fixedly mounted on the top of the strip frame, the micro fan is symmetrically mounted inside the square frame, and the micro fan is electrically connected to the controller, and the output end of the micro fan is connected to the cooling pipe.

[0013] Preferably, a connecting pipe is fixedly connected to the bottom of the cooling pipe, a diverter pipe is fixedly installed on the drying box, and the diverter pipe is communicated with the connecting pipe, and an exhaust head is arranged in an array on the diverter pipe, and one end of the exhaust head extends to the inside of the drying box.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model installs a cooling pipe and a conical groove to facilitate the recovery of water vapor generated by the drying and dehydration device for sludge treatment. The evaporated water vapor generated by drying flows upward and enters the exhaust groove. The water vapor will flow into the exhaust pipe through the exhaust groove and the wind collecting groove. The micro fan will generate wind force when it is working. The wind force flow will flow into the cooling pipe and then cool the exhaust pipe. The water vapor inside the exhaust pipe will condense into water when it is cold. The condensed water source will flow into the collection component for storage, thereby achieving the purpose of collecting the water source. The water vapor generated by drying can be effectively collected to avoid the water vapor being directly discharged to the outside world and affecting the surrounding environment. At the same time, the recovered water source can also be recycled.

[0016] 2. The utility model installs an exhaust head to facilitate the rapid discharge of water vapor inside the drying and dehydration device for sludge treatment. The wind flowing inside the cooling pipe will absorb the heat inside the exhaust pipe. The wind carrying heat will flow into the diversion pipe through the connecting pipe, and the hot air will flow into the drying box through the exhaust head. The wind flow will cause the excess heat to flow back into the drying box, which is convenient for the recovery and utilization of waste heat. At the same time, the exhaust head is aligned with the exhaust slot, which will improve the efficiency of the wind flow inside the drying box during wind flow, facilitate the flow of water vapor into the exhaust slot, and improve the practicality of the sludge drying and dehydration treatment device based on the low-temperature heat pump.

[0017] 3. The utility model facilitates the dispersion of sludge by installing a stirring shaft. After the squeezed and dehydrated sludge is added into the feed hopper, the sludge moves to the location of the stirring shaft, and the No. 2 motor is turned on to drive the stirring shaft to rotate. When the stirring shaft rotates, the sludge is stirred and dispersed. After the sludge is dispersed, it will fall onto the conveyor belt for drying, which can improve the drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the strip frame structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the exhaust pipe structure of the utility model;

[0022] Figure 5 This is a schematic diagram of the stirring shaft structure of the utility model;

[0023] Figure 6 This is a schematic diagram of the diverter pipe structure of the present utility model.

[0024] In the figure: 1. Drying box; 2. Feed hopper; 3. Support legs; 4. Controller; 5. Motor No. 1; 6. Conveyor belt; 7. Side panel; 8. Motor No. 2; 9. Agitator shaft; 10. Low-temperature heat pump assembly; 11. Circulation pipe; 12. Injector head; 13. Discharge chute; 14. Exhaust chute; 15. Air collecting chute; 16. Strip rack; 17. Exhaust pipe; 18. Conical trough; 19. Threaded barrel; 20. Connector; 21. Storage barrel; 22. Square rack; 23. Micro fan; 24. Cooling pipe; 25. Connecting pipe; 26. Diverter pipe; 27. Exhaust head. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figures 1 to 5A sludge drying and dehydration treatment device based on a low-temperature heat pump comprises a drying box 1, a feed hopper 2 is provided on the top of the drying box 1, a low-temperature heat pump assembly 10 is fixedly installed on the bottom of the drying box 1, a transfer assembly is provided inside the drying box 1, a drying assembly is provided inside the drying box 1, a dispersion assembly is provided inside the feed hopper 2, an exhaust slot 14 is provided in an array on the top of the drying box 1, an air collecting slot 15 is installed on the top of the exhaust slot 14, a strip frame 16 is fixedly installed on the air collecting slot 15, and an exhaust gas discharge device is provided inside the strip frame 16. The air duct 17 is connected to the air collecting trough 15 at one end, and an air delivery component is provided on the top of the strip frame 16. A cooling pipe 24 is symmetrically provided inside the strip frame 16, and the cooling pipe 24 is located on one side of the exhaust pipe 17. A collecting component is connected to the bottom of the exhaust pipe 17. When the sludge is dried and dehydrated by using a sludge drying and dehydration treatment device based on a low-temperature heat pump, the sludge after extrusion and dehydration is added to the inside of the feed hopper 2, and the sludge is broken up by the dispersion component. After the sludge falls on the transfer component, it is passed through the sludge drying and dehydration treatment device. The sludge will be transferred by the transfer component, and the low-temperature heat pump component 10 will generate hot air flow. After the hot air flows into the drying component, the transferred sludge will be dried and dehydrated by the drying component, thereby achieving the purpose of drying and dehydrating the sludge. The evaporated water vapor generated by drying will flow upward and enter the exhaust groove 14. The water vapor will flow into the exhaust pipe 17 through the exhaust groove 14 and the air collecting groove 15. At the same time, the air supply component will generate wind force. The wind force flows into the cooling pipe 24, which will absorb and discharge heat, and cool the exhaust pipe 17, thereby causing the water vapor in the exhaust pipe 17 to condense into water when it is cold. The condensed water source will flow into the collection component for storage, thereby achieving the purpose of collecting the water source. The water vapor generated by drying can be effectively collected to avoid the water vapor being directly discharged to the outside world and affecting the surrounding environment. At the same time, the recovered water source can also be recycled and reused, thereby improving the practicality of the sludge drying and dehydration treatment device based on the low-temperature heat pump.

[0027] See also Figure 1 and Figure 2 A controller 4 is fixedly installed on the drying box 1, and a support leg 3 is fixedly installed on the bottom of the drying box 1, and the support leg 3 is located on one side of the low-temperature heat pump component 10. The controller 4 is electrically connected to the low-temperature heat pump component 10. A discharge chute 13 is fixedly installed inside the drying box 1. The low-temperature heat pump component 10 can be controlled to work by the controller 4. The low-temperature heat pump component 10 will deliver hot air to dry the sludge, and the support leg 3 is used to support the drying box 1.

[0028] See also Figure 2The transfer assembly includes a No. 1 motor 5, a conveyor belt 6 and a side panel 7. The No. 1 motor 5 is fixedly mounted on the drying box 1, and the No. 1 motor 5 is electrically connected to the controller 4. The conveyor belt 6 is arranged inside the drying box 1, and the output end of the No. 1 motor 5 is transmission-connected to the conveyor belt 6. The side panel 7 is fixedly mounted inside the drying box 1, and the side panel 7 is located on one side of the conveyor belt 6. The conveyor belt 6 is located on one side of the discharge trough 13. After the sludge falls on the conveyor belt 6, when the sludge position is transferred, the No. 1 motor 5 will work to drive the conveyor belt 6 to move, and the movement of the conveyor belt 6 will transfer the sludge position, and the side panel 7 will facilitate the sludge to fall onto the conveyor belt 6.

[0029] See also Figure 2 and Figure 5 The dispersion component includes a stirring shaft 9 and a No. 2 motor 8. The stirring shaft 9 is movably installed inside the feed hopper 2, and the No. 2 motor 8 is fixedly installed on the drying box 1. The output end of the No. 2 motor 8 is fixedly connected to one end of the stirring shaft 9. After the sludge to be dried is placed inside the feed hopper 2, the sludge moves to the location of the stirring shaft 9, and the No. 2 motor 8 is turned on to drive the stirring shaft 9 to rotate. When the stirring shaft 9 rotates, the sludge is stirred and dispersed. After the sludge is dispersed, it is convenient to dry and dehydrate the sludge, thereby improving the drying efficiency.

[0030] See also Figure 1 and Figure 4 The drying component includes a circulation pipe 11 and a nozzle 12. The circulation pipe 11 is fixedly installed inside the drying box 1. The nozzle 12 is arranged in an array on the circulation pipe 11, and the circulation pipe 11 is connected to the low-temperature heat pump component 10. When the low-temperature heat pump component 10 is working, it will transport hot air to the inside of the circulation pipe 11, and then the hot air will flow evenly into the drying box 1 through the nozzle 12, thereby drying and dehydrating the sludge transported by the conveyor belt 6.

[0031] See also Figure 2 The collection component includes a conical groove 18, a threaded barrel 19, a connecting head 20 and a storage barrel 21. The conical groove 18 is fixedly installed below the exhaust pipe 17, the threaded barrel 19 is fixedly installed below the conical groove 18, the connecting head 20 is threadedly connected to the inside of the threaded barrel 19, and the storage barrel 21 is fixedly installed below the connecting head 20. After the water vapor condenses into water inside the exhaust pipe 17, it flows downward and enters the conical groove 18. The water source will flow into the inside of the threaded barrel 19 through the conical groove 18, and will flow into the storage barrel 21 through the connecting head 20 for storage, thereby facilitating the recycling of the water source.

[0032] See also Figure 3The air supply component includes a square frame 22 and a micro fan 23. The square frame 22 is fixedly mounted on the top of the strip frame 16. The micro fan 23 is symmetrically mounted inside the square frame 22. The micro fan 23 is electrically connected to the controller 4. The output end of the micro fan 23 is connected to the cooling pipe 24. When the air supply component is working, the micro fan 23 will generate wind, and the wind flow will flow into the cooling pipe 24, thereby cooling the exhaust pipe 17.

[0033] See also Figure 1 and Figure 6 A connecting pipe 25 is fixedly connected to the bottom of the cooling pipe 24, and a diverter pipe 26 is fixedly installed on the drying box 1, and the diverter pipe 26 is connected to the connecting pipe 25. An exhaust head 27 is arranged in an array on the diverter pipe 26, and one end of the exhaust head 27 extends to the inside of the drying box 1. The wind flowing inside the cooling pipe 24 will absorb the heat inside the exhaust pipe 17, and the wind carrying heat will flow into the diverter pipe 26 through the connecting pipe 25, and the hot air will flow into the drying box 1 through the exhaust head 27. The wind flow will make the excess heat flow back into the drying box 1, which is convenient for recycling the waste heat. At the same time, the exhaust head 27 is aligned with the exhaust slot 14. When the wind flows, the efficiency of the wind flow inside the drying box 1 will be improved, which is convenient for water vapor to flow into the exhaust slot 14.

[0034] Working principle: First, when the sludge is dried and dehydrated using the sludge drying and dehydration treatment device based on the low-temperature heat pump, the squeezed and dehydrated sludge is added into the feed hopper 2. After the sludge moves to the location of the stirring shaft 9, the No. 2 motor 8 is turned on to drive the stirring shaft 9 to rotate. When the stirring shaft 9 rotates, the sludge is stirred and dispersed. After the sludge is dispersed, the sludge will fall onto the conveyor belt 6, and the No. 1 motor 5 is turned on to drive the conveyor belt 6 to move. The movement of the conveyor belt 6 will transport the sludge position, and at the same time, the low The heat pump assembly 10 generates hot air flow when it works. After the hot air flows into the circulation pipe 11, the hot air will flow evenly into the drying box 1 through the nozzle 12, and then the sludge transported by the conveyor belt 6 will be dried and dehydrated, thereby achieving the purpose of drying and dehydrating the sludge. The evaporated water vapor generated by the drying will flow upward and enter the exhaust groove 14. The water vapor will flow into the exhaust pipe 17 through the exhaust groove 14 and the air collecting groove 15. The micro fan 23 will generate wind force when it works, and the wind flow will The condensed water source will flow into the collection component for storage, thereby achieving the purpose of collecting the water source, which can effectively collect the water vapor generated by drying, and prevent the water vapor from being directly discharged to the outside and affecting the surrounding environment. At the same time, the recovered water source can also be recycled and reused. The wind flowing in the cooling pipe 24 will absorb the heat inside the exhaust pipe 17, and the wind carrying heat will flow into the diversion pipe 26 through the connecting pipe 25, and the hot air will flow into the drying box 1 through the exhaust head 27. The wind flow will make the excess heat flow back into the drying box 1, which is convenient for recycling the waste heat. At the same time, the exhaust head 27 is aligned with the exhaust slot 14. When the wind flows, the efficiency of the wind flow inside the drying box 1 is improved, which facilitates the flow of water vapor into the exhaust slot 14, thereby improving the practicality of the sludge drying and dehydration treatment device based on the low-temperature heat pump.

[0035] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A sludge drying and dehydration treatment device based on a low-temperature heat pump, comprising a drying box (1), characterized in that: The drying box (1) is provided with a feed hopper (2) on the top, a low-temperature heat pump assembly (10) is fixedly installed on the bottom of the drying box (1), a transfer assembly is provided inside the drying box (1), a drying assembly is provided inside the drying box (1), a dispersion assembly is provided inside the feed hopper (2), an exhaust slot (14) is provided in array on the top of the drying box (1), an air collecting slot (15) is installed on the top of the exhaust slot (14), a strip frame (16) is fixedly installed on the air collecting slot (15), an exhaust pipe (17) is passed through the inside of the strip frame (16), and one end of the exhaust pipe (17) is connected to the air collecting slot (15), an air supply assembly is provided on the top of the strip frame (16), a cooling pipe (24) is symmetrically provided inside the strip frame (16), and the cooling pipe (24) is located on one side of the exhaust pipe (17), and a collecting assembly is connected below the exhaust pipe (17).

2. The sludge drying and dehydration treatment device based on a low-temperature heat pump according to claim 1, characterized in that: A controller (4) is fixedly mounted on the drying box (1), a support leg (3) is fixedly mounted on the bottom of the drying box (1), and the support leg (3) is located on one side of the low-temperature heat pump assembly (10), the controller (4) is electrically connected to the low-temperature heat pump assembly (10), and a discharge trough (13) is fixedly mounted inside the drying box (1).

3. The sludge drying and dehydration treatment device based on a low-temperature heat pump according to claim 1, characterized in that: The transfer assembly comprises a No. 1 motor (5), a conveyor belt (6) and a side plate (7); the No. 1 motor (5) is fixedly mounted on the drying box (1), and the No. 1 motor (5) is electrically connected to the controller (4); the conveyor belt (6) is arranged inside the drying box (1), and the output end of the No. 1 motor (5) is transmission-connected to the conveyor belt (6); the side plate (7) is fixedly mounted inside the drying box (1), and the side plate (7) is located on one side of the conveyor belt (6); and the conveyor belt (6) is located on one side of the discharge trough (13).

4. The sludge drying and dehydration treatment device based on a low-temperature heat pump according to claim 1, characterized in that: The dispersion assembly comprises a stirring shaft (9) and a second motor (8), wherein the stirring shaft (9) is movably mounted inside the feed hopper (2), and the second motor (8) is fixedly mounted on the drying box (1), and the output end of the second motor (8) is fixedly connected to one end of the stirring shaft (9).

5. The sludge drying and dehydration treatment device based on a low-temperature heat pump according to claim 1, characterized in that: The drying assembly comprises a circulation pipe (11) and a nozzle (12); the circulation pipe (11) is fixedly installed inside the drying box (1); the nozzle (12) is arranged in an array on the circulation pipe (11); and the circulation pipe (11) is connected to the low-temperature heat pump assembly (10).

6. The sludge drying and dehydration treatment device based on a low-temperature heat pump according to claim 1, characterized in that: The collecting assembly comprises a tapered groove (18), a threaded barrel (19), a connector (20) and a storage barrel (21); the tapered groove (18) is fixedly mounted below the exhaust pipe (17); the threaded barrel (19) is fixedly mounted below the tapered groove (18); the connector (20) is threadedly connected to the inside of the threaded barrel (19); and the storage barrel (21) is fixedly mounted below the connector (20).

7. The sludge drying and dehydration treatment device based on a low-temperature heat pump according to claim 1, characterized in that: The air delivery assembly includes a square frame (22) and a micro fan (23), wherein the square frame (22) is fixedly mounted on the top of the strip frame (16), and the micro fan (23) is symmetrically mounted inside the square frame (22). The micro fan (23) is electrically connected to the controller (4), and the output end of the micro fan (23) is connected to the cooling pipe (24).

8. The sludge drying and dehydration treatment device based on a low-temperature heat pump according to claim 7, characterized in that: The bottom of the cooling pipe (24) is fixedly connected to a connecting pipe (25); a shunt pipe (26) is fixedly installed on the drying box (1), and the shunt pipe (26) is communicated with the connecting pipe (25); an exhaust head (27) is arranged in an array on the shunt pipe (26), and one end of the exhaust head (27) extends into the interior of the drying box (1).

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