Sludge drying waste heat utilization heat pump

Abstract

The invention relates to the field of heat pumps, in particular to a sludge drying waste heat utilization heat pump which comprises a placement mechanism used for placement treatment of sticky and wet sludge. The discharging mechanism is used for discharging the dried sludge; the waste heat mechanism is used for introducing waste heat emitted by an external boiler into the drying oven; the heat dissipation mechanism is used for discharging redundant heat in the drying oven; according to the sludge drying waste heat utilization heat pump, the two ends of a stretching filter screen are fixedly connected to the inner side of a feeding pipe and the outer side of an air blocking head correspondingly, so that the air blocking head moves inwards, the stretching filter screen extends, the waste heat is discharged, and the sludge drying waste heat utilization effect is achieved. Therefore, impurities and dust in the waste heat of the boiler are filtered, and the situation that follow-up operation is affected due to the fact that the impurities and the sludge are fused is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of heat pumps, and specifically to a sludge drying waste heat utilization heat pump. Background Art

[0002] A heat pump is an energy-efficient device that makes full use of low-grade heat energy. Heat can spontaneously transfer from a high-temperature object to a low-temperature object, but it cannot spontaneously go in the opposite direction. The working principle of a heat pump is a mechanical device that forces heat to flow from a low-temperature object to a high-temperature object in a reverse cycle manner. It only consumes a small amount of net work in the reverse cycle and can obtain a large amount of heat supply. It can effectively utilize the difficult-to-apply low-grade heat energy to achieve the purpose of energy conservation.

[0003] For existing sludge drying waste heat utilization heat pumps, there are the following problems: 1. Since the waste heat is introduced from external devices such as boilers, impurities and dust will be mixed in the waste heat, which will affect subsequent processing and pollute the environment at the same time; 2. Existing heat pumps for sludge drying treatment only dry the surface of the sludge, and the drying effect inside is not obvious. Summary of the Invention

[0004] The present invention aims to provide a sludge drying waste heat utilization heat pump to solve the problems raised in the above background art.

[0005] To achieve the above object, the present invention provides the following technical solution: A sludge drying waste heat utilization heat pump, including a placement mechanism for placing and treating wet sludge; A discharge mechanism for discharging the dried sludge; A waste heat mechanism for introducing the waste heat generated by an external boiler into the oven; A heat dissipation mechanism for discharging the excess heat inside the oven; The placement mechanism is arranged on the discharge mechanism, the waste heat mechanism is fixedly installed on the discharge mechanism, a condensation component is fixedly installed on the outside of the discharge mechanism, a control box is fixedly connected to the condensation component, the heat dissipation mechanism is arranged inside the control box, and an evaporation component is fixedly installed inside the control box; Among them, the placement mechanism includes a stay frame, the outside of the stay frame is fixedly connected to the control box, a first circulation hole and a second circulation hole are respectively opened at the connecting part of the stay frame and the control box, a support rod is fixedly connected to the inside of the stay frame, and a heat-conducting spiral ring is fixedly connected to the end of the support rod away from the stay frame.

[0006] Preferably, a middle support is fixedly installed at the bottom of the inner cavity of the stay box. An inner shaft is fixedly connected inside the middle support. A screening net is rotatably connected to the outer side of the inner shaft. One end of the screening net away from the middle support is fixedly connected with a first magnetic block, and sludge is placed on the screening net.

[0007] Preferably, the discharging mechanism includes a heat preservation oven which is fixedly installed at the bottom of the stay box. The outer side of the heat preservation oven is fixedly connected with and communicated with a condensation component. A central insert plate is fixedly connected to the central part of the inner cavity of the heat preservation oven. Insertion limiting plates are symmetrically sleeved at both ends of the central insert plate. The insertion limiting plates penetrate through the outer side of the heat preservation oven and extend into its interior.

[0008] Preferably, a second magnetic block is fixedly connected to the top of the insertion limiting plate. The first magnetic block and the second magnetic block are in a repulsive relationship. A side plate is fixedly connected to the end of the insertion limiting plate away from the central insert plate. Compression springs are symmetrically arranged at both ends of the insertion limiting plate. The outer end surface of the compression spring is fixedly connected with the side plate. The end of the compression spring away from the side plate is fixedly connected to the outer side of the heat preservation oven.

[0009] Preferably, the waste heat mechanism includes an inlet pipe which is fixedly installed on the outer side of the heat preservation oven. A perforation is formed at the top of the inlet pipe, and an external air pump is fixedly installed at the top of the perforation. One end of the external air pump away from the inlet pipe is fixedly connected with a pump bracket. The pump bracket is fixedly connected to the top of the heat preservation oven. An air inlet hole is formed in the outer side of the heat preservation oven. An air ventilation partition plate is fixedly connected to the inner cavity of the heat preservation oven.

[0010] Preferably, an internal pipe is fixedly installed inside the inlet pipe. A gas blocking head is sleeved at the central part of the internal pipe. A blocked disk is fixedly connected to the end of the gas blocking head close to the internal pipe. A cross rail is slidably fitted to the outer side of the gas blocking head. A spring is fixedly connected to the inner side of the cross rail. The end of the spring away from the cross rail is fixedly connected with the gas blocking head.

[0011] Preferably, limiting rings are fixedly connected to the outer side of the internal pipe and the inner side of the inlet pipe respectively. A resilient ring piece is fixedly connected to the side of the limiting ring away from the inlet pipe. A stretching filter screen is arranged beside the resilient ring piece. The top end of the stretching filter screen is fixedly connected to the inner side of the inlet pipe. The bottom end of the stretching filter screen is fixedly connected to the outer side of the gas blocking head.

[0012] Preferably, the heat dissipation mechanism includes a bent rod fixedly connected to the inside of the control box. One end of the bent rod away from the control box is fixedly connected to a frame. A servo motor is fixedly installed at the central part of the frame. The output end of the servo motor is connected to a radiator fan through a coupling. A first gear is press-fitted on the outside of the output end of the servo motor. A second gear is meshed and driven on the outside of the first gear. A tooth shaft is press-fitted at the central part of the second gear.

[0013] Preferably, an outer connecting rod is rotatably connected to the inside of the control box. One end of the outer connecting rod away from the control box is press-fitted with a friction column sleeve. One end of the friction column sleeve away from the outer connecting rod is fixedly connected to the tooth shaft. A sleeve roller is fixedly connected to the outside of the outer connecting rod. A winding strip is fixedly connected to the outside of the sleeve roller. A first positioning rod and a second positioning rod are respectively press-fitted on the outside of the winding strip. The first positioning rod is fixedly connected to the inside of the control box, and the second positioning rod is fixedly connected to the outside of the control box.

[0014] Preferably, one end of the winding strip away from the sleeve roller is fixedly connected to a sealing plate. The upper and lower ends of the sealing plate are slidably fitted with a sliding rail. A fourth magnetic block is fixedly connected to the inside of the sliding rail. A third magnetic block is arranged at one end of the fourth magnetic block away from the sliding rail. The third magnetic block is fixedly connected to the outside of the sealing plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The two ends of the stretching filter screen are respectively fixedly connected to the inside of the inlet pipe and the outside of the air blocking head. Therefore, when the air blocking head moves inward, the stretching filter screen will be extended, so as to filter impurities and dust in the waste heat of the boiler, and avoid the fusion of impurities and sludge and affect subsequent operations.

[0016] 2. The inlet pipe is fixedly connected to the outside of the heat preservation oven, and air inlet holes are opened on the outside of the heat preservation oven. Therefore, the waste heat will enter the heat preservation oven through the air inlet holes and the ventilation partition disk in turn, so as to heat and dry the wet sludge, and at the same time play an environmental protection role of secondary utilization of the waste heat of the boiler.

[0017] 3. The hot air discharged from the air inlet holes and the second flow holes respectively, and part of its heat will be transmitted to the heat conduction spiral ring. Then the heat conduction spiral ring will transmit the heat to every corner of itself, so as to dry the inside of the wet sludge and accelerate the drying speed.

[0018] 4. The radiator fan respectively forms negative pressure and generates suction in the control box and the stay frame, and the excess heat in the stay frame will be discharged outward through the radiator fan, so as to discharge the excess heat in the stay frame and the heat preservation oven outward and not pollute the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. 1 is a schematic diagram of the external structure of a sludge drying waste heat utilization heat pump according to the present invention.

[0020] Figure 2 FIG. 2 is a schematic diagram of the lid-removed structure of the whole of the present invention.

[0021] Figure 3 FIG. 3 is a schematic diagram of the structure of the placement mechanism of the present invention.

[0022] Figure 4 FIG. 4 is a magnified schematic diagram of part A in the present invention Figure 3 of the present invention.

[0023] Figure 5 FIG. 5 is a sectional schematic diagram of the placement mechanism of the present invention.

[0024] Figure 6 FIG. 6 is a magnified schematic diagram of part B in the present invention Figure 5 of the present invention.

[0025] Figure 7 FIG. 7 is a sectional schematic diagram of the discharge mechanism of the present invention.

[0026] Figure 8 FIG. 8 is a schematic diagram of the structure of the discharge mechanism of the present invention.

[0027] Figure 9 FIG. 9 is a sectional schematic diagram of the waste heat mechanism of the present invention.

[0028] Figure 10 FIG. 10 is a magnified schematic diagram of part C in the present invention Figure 9 of the present invention.

[0029] Figure 11 FIG. 11 is a schematic diagram of the structure of the heat dissipation mechanism of the present invention.

[0030] Figure 12 FIG. 12 is a side schematic diagram of the heat dissipation mechanism of the present invention.

[0031] Figure 13 FIG. 13 is a schematic diagram of the structure of some components of the heat dissipation mechanism of the present invention.

[0032] Figure 14 FIG. 14 is a magnified schematic diagram of some components of the heat dissipation mechanism of the present invention.

[0033] In the figure: 1, condensation component; 2, control box; 3, heat dissipation mechanism; 4, evaporation component; 5, placement mechanism; 6, discharge mechanism; 7, waste heat mechanism; 51, stay frame; 52, first circulation hole; 53, second circulation hole; 54, support rod; 55, heat-conducting spiral ring; 56, middle support; 57, inner shaft; 58, screening net; 59, first magnetic block; 61, insulation oven; 62, central panel; 63, insertion limit plate; 64, second magnetic block; 65, side plate; 66, compression spring; 71, inlet pipe; 72, external air pump; 73, pump stand; 74, air inlet hole; 75, ventilation partition disk; 76, internal pipe; 77, air-blocking head; 78, blocked disk; 79, cross rail; 70, spring; 701, limit ring; 702, resilient ring piece; 703, stretching filter screen; 31, bent rod; 32, frame; 33, servo motor; 34, heat dissipation fan; 35, first gear; 36, second gear; 37, tooth shaft; 38, friction column sleeve; 39, outer connecting rod; 30, sleeve roller; 301, winding strip; 302, first positioning rod; 303, second positioning rod; 304, sealing plate; 305, attaching rail; 306, third magnetic block; 307, fourth magnetic block. Detailed implementation manners

[0034] Next, in combination with the accompanying drawings and specific implementation manners, the present invention will be further described. It should be noted that, on the premise of non-conflict, the following-described embodiments or technical features can be arbitrarily combined to form new embodiments. It should be known that the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work fall within the scope of protection of the present invention.

[0035] Please refer to Figures 1 to 14 , the present invention provides a technical solution: As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , it includes a placement mechanism 5, and this placement mechanism 5 is used for the placement and treatment of sticky wet sludge; A discharge mechanism 6, and this discharge mechanism 6 is used for discharging the dried sludge; A waste heat mechanism 7, and this waste heat mechanism 7 is used for introducing the waste heat generated by an external boiler into the oven; A heat dissipation mechanism 3, and this heat dissipation mechanism 3 is used for discharging the excess heat inside the oven; The placement mechanism 5 is arranged on the discharge mechanism 6, the waste heat mechanism 7 is fixedly installed on the discharge mechanism 6, a condensation assembly 1 is fixedly installed on the outer side of the discharge mechanism 6, a control box 2 is fixedly connected to the condensation assembly 1, a heat dissipation mechanism 3 is arranged inside the control box 2, and an evaporation assembly 4 is fixedly installed inside the control box 2.

[0036] Among them, the placement mechanism 5 includes a stay frame 51, the outer side of the stay frame 51 is fixedly connected to the control box 2, a first circulation hole 52 and a second circulation hole 53 are respectively opened at the connecting parts of the stay frame 51 and the control box 2, a support rod 54 is fixedly connected to the inner side of the stay frame 51, a heat-conducting spiral ring 55 is fixedly connected to the end of the support rod 54 far away from the stay frame 51, and the heat-conducting spiral ring 55 is connected inside the stay frame 51 through the support rod 54. Among them, the dry waste heat entering the inside of the heat preservation oven 61 from the air inlet hole 74 and the dry hot air entering the inside of the stay frame 51 from the second circulation hole 53 will both come into contact with the heat-conducting spiral ring 55. The wet sludge wraps the heat-conducting spiral ring 55, and at the same time the heat-conducting spiral ring 55 has heat-conducting performance. Therefore, part of the heat of the hot air discharged from the air inlet hole 74 and the second circulation hole 53 will be transmitted to the heat-conducting spiral ring 55. Then the heat-conducting spiral ring 55 will transmit the heat to every corner of itself, so as to play a role in drying the inside of the wet sludge and accelerating the drying speed. A middle support 56 is fixedly installed at the bottom of the inner cavity of the stay frame 51, an inner shaft 57 is fixedly connected to the inside of the middle support 56, a screening net 58 is rotatably connected to the outer side of the inner shaft 57, a first magnetic block 59 is fixedly connected to the end of the screening net 58 far away from the middle support 56, and the sludge is placed on the screening net 58. When the equipment operates stably, the dry hot air is sent into the bottom of the heat preservation oven 61 by a blower and penetrates through the wet sludge in the stay frame 51. Then the moisture in the sludge is heated and evaporated into water vapor. After that, the wet air flows through the first circulation hole 52 and enters the evaporation assembly 4 of the heat pump system for cooling and dehumidification. The inside of the evaporation assembly 4 is mainly an evaporator. The refrigerant releases the latent heat of condensation of the wet air absorbed in the evaporator at the condensation assembly 1, and the dry hot air is heated by the condensation assembly 1 and then sent into the stay frame 51 by the fan inside it through the second circulation hole 53 to continue drying the sludge.

[0037] Such as Figure 7 、 Figure 8 、 Figure 9 and Figure 10As shown, the discharging mechanism 6 includes a heat preservation oven 61, which is fixedly installed at the bottom of the staying frame 51. The outside of the heat preservation oven 61 is fixedly connected to the condensation assembly 1 and the two are interconnected. A central insert plate 62 is fixedly connected to the central part of the inner cavity of the heat preservation oven 61. Insertion limit plates 63 are symmetrically sleeved at both ends of the central insert plate 62. The insertion limit plates 63 penetrate through the outside of the heat preservation oven 61 and extend into its interior. A second magnetic block 64 is fixedly connected to the top of the insertion limit plate 63. There is a repulsive relationship between the first magnetic block 59 and the second magnetic block 64. A side plate 65 is fixedly connected to the end of the insertion limit plate 63 away from the central insert plate 62. Compression springs 66 are symmetrically arranged at both ends of the insertion limit plate 63. The outer end face of the compression spring 66 is fixedly connected to the side plate 65. The end of the compression spring 66 away from the side plate 65 is fixedly connected to the outside of the heat preservation oven 61. In addition, after the sludge is dried, an external power device is used to make the screening mesh 58 deflect downward through the inner shaft 57. The first magnetic blocks 59 fixedly connected to both ends of the screening mesh 58 will move downward accordingly and be exposed. Immediately afterwards, a repulsive relationship will be generated between the first magnetic block 59 and the second magnetic block 64. Therefore, the insertion limit plate 63 connected to the second magnetic block 64 will extend outward from the central insert plate 62. The first magnetic block 59 and the second magnetic block 64 are on the same vertical plane. At the same time, the side plate 65 connected to the insertion limit plate 63 will stretch the compression spring 66. Finally, through the downward deflection of the screening mesh 58 and the outward extension of the insertion limit plate 63, the dried sludge can be smoothly discharged out through the bottom of the heat preservation oven 61.

[0038] The waste heat mechanism 7 includes an inlet pipe 71, which is fixedly installed on the outside of the heat preservation oven 61. A perforation is formed at the top of the inlet pipe 71, and an external air pump 72 is fixedly installed at the top of the perforation. One end of the external air pump 72 away from the inlet pipe 71 is fixedly connected to a pump bracket 73, and the pump bracket 73 is fixedly connected to the top of the heat preservation oven 61. An air inlet hole 74 is formed on the outside of the heat preservation oven 61. An air ventilation partition plate 75 is fixedly connected to the inner cavity of the heat preservation oven 61. An internal pipe 76 is fixedly installed inside the inlet pipe 71. A gas blocking head 77 is sleeved at the central part of the internal pipe 76. One end of the gas blocking head 77 close to the internal pipe 76 is fixedly connected to a blocking disc 78. A cross rail 79 is slidably fitted on the outside of the gas blocking head 77. A spring 70 is fixedly connected to the inner side of the cross rail 79. One end of the spring 70 away from the cross rail 79 is fixedly connected to the gas blocking head 77. By putting the wet sludge into the stay frame 51, then docking the external pipe with the inlet pipe 71, and then dry waste heat will flow in the external pipe and enter the inlet pipe 71. The waste heat is provided by the heat generated by other heat sources in the factory area, such as boilers. The waste heat entering the inside of the inlet pipe 71 will impact the blocking disc 78. The blocking disc 78 is in a trumpet shape, so that more waste heat can impact on its surface. The other end of the blocking disc 78 is connected to the gas blocking head 77. Therefore, the gas blocking head 77 will move along the cross rail 79 and move towards the inside of the inlet pipe 71, while compressing the spring 70. The spring 70 plays a role in resetting the gas blocking head 77. As the gas blocking head 77 penetrates deeper into the inlet pipe 71, it will be separated from the internal pipe 76. Immediately afterwards, the waste heat will flow through the separated space between the two and impact on the stretching filter screen 703. The two ends of the stretching filter screen 703 are respectively fixedly connected to the inner side of the inlet pipe 71 and the outside of the gas blocking head 77. Therefore, the inward movement of the gas blocking head 77 causes the stretching filter screen 703 to extend, thereby playing a role in filtering impurities and dust in the boiler waste heat, avoiding the fusion of impurities and sludge and affecting subsequent operations. Finally, the waste heat will pass through the stretching filter screen 703 and enter the deep inside of the inlet pipe 71. The inlet pipe 71 is fixedly connected to the outside of the heat preservation oven 61, and the air inlet hole 74 is formed on the outside of the heat preservation oven 61. Therefore, the waste heat will enter the heat preservation oven 61 through the air inlet hole 74 and the air ventilation partition plate 75 in sequence, thereby playing a role in heating and drying the wet sludge, and at the same time playing an environmental protection role in secondary utilization of the boiler waste heat.

[0039] On the outer side of the internal pipe 76 and the inner side of the inlet pipe 71, limiting rings 701 are fixedly connected. On the side of the limiting ring 701 away from the inlet pipe 71, a resilient ring piece 702 is fixedly connected. Beside the resilient ring piece 702, a stretching filter screen 703 is provided. The top end of the stretching filter screen 703 is fixedly connected to the inner side of the inlet pipe 71, and the bottom end of the stretching filter screen 703 is fixedly connected to the outer side of the air-blocking head 77. Additionally, after all the waste heat has flowed into the interior of the inlet pipe 71, the air-blocking head 77 will, under the action of the spring 70, block the internal pipe 76 again. At the same time, the stretching filter screen 703 will return to its contracted state. Then, the external air pump 72 is started, causing the external air pump 72 to generate suction at the top of the inlet pipe 71. Immediately afterwards, the resilient ring piece 702 affected by the suction will deflect towards the direction where the external air pump 72 generates suction. Subsequently, the impurities and dust filtered by the stretching filter screen 703 will pass through the bent resilient ring piece 702 and be sucked into the external air pump 72 for collection and treatment.

[0040] As Figure 11 , Figure 12 , Figure 13 and Figure 14 shown, the heat dissipation mechanism 3 includes a bent rod 31. The bent rod 31 is fixedly connected to the inner side of the control box 2. The end of the bent rod 31 away from the control box 2 is fixedly connected to a frame 32. A servo motor 33 is fixedly installed at the central part of the frame 32. The output end of the servo motor 33 is connected to a radiator fan 34 through a coupling. A first gear 35 is press-fitted on the outer side of the output end of the servo motor 33. A second gear 36 is meshed and driven on the outer side of the first gear 35. A tooth shaft 37 is press-fitted at the central part of the second gear 36. An outer connecting rod 39 is rotatably connected to the interior of the control box 2. A friction column sleeve 38 is press-fitted at the end of the outer connecting rod 39 away from the control box 2. The end of the friction column sleeve 38 away from the outer connecting rod 39 is fixedly connected to the tooth shaft 37. A sleeve roller 30 is fixedly connected to the outer side of the outer connecting rod 39. A winding strip 301 is fixedly connected to the outer side of the sleeve roller 30. A first positioning rod 302 and a second positioning rod 303 are respectively press-fitted on the outer side of the winding strip 301. Among them, the first positioning rod 302 is fixedly connected to the inner side of the control box 2, and the second positioning rod 303 is fixedly connected to the outer side of the control box 2. When the blocking plate 304 moves to the other end of the track 305, the winding strip 301 will no longer wind and will generate a reverse force to prevent the outer connecting rod 39 and the sleeve roller 30 from rotating. Because the outer connecting rod 39 is press-fitted with the friction column sleeve 38, at this time, relative rotation will occur between the outer connecting rod 39 and the friction column sleeve 38. The friction column sleeve 38 rotates, but the outer connecting rod 39 remains stationary, and at the same time, the winding strip 301 remains in the winding state.

[0041] One end of the coiling strip 301 away from the sleeve roller 30 is fixedly connected with a sealing plate 304. The upper and lower ends of the sealing plate 304 are slidably fitted with track stickers 305. A fourth magnet 307 is fixedly connected inside the track sticker 305. One end of the fourth magnet 307 away from the track sticker 305 is provided with a third magnet 306, and the third magnet 306 is fixedly connected to the outside of the sealing plate 304. When the temperature inside the heat preservation oven 61 or the stay frame 51 is too high and reaches the set value, the servo motor 33 is started, causing the radiator fan 34 connected to its output end through a coupling to rotate. At the same time, the first gear 35 fitted on the output end of the servo motor 33 will rotate and mesh with the second gear 36 for transmission. The center of the second gear 36 is connected to the friction column sleeve 38 through a tooth shaft 37. In addition, the inside of the friction column sleeve 38 is fitted with the outer connecting rod 39 by extrusion. Therefore, at the beginning, the second gear 36 will drive the tooth shaft 37, the friction column sleeve 38 and the outer connecting rod 39 to rotate together. The outside of the outer connecting rod 39 is connected to the sleeve roller 30, and the surface of the sleeve roller 30 is connected to the coiling strip 301. The other end of the coiling strip 301 is connected to the sealing plate 304. Therefore, the sealing plate 304 will move outward along the track sticker 305. The third magnet 306 fixedly connected to the sealing plate 304 and the fourth magnet 307 fixedly connected inside the track sticker 305 are in a repulsive relationship and play a role in resetting the sealing plate 304 and passing through the stay frame 51 to the outside. At this time, another hole connected between the control box 2 and the stay frame 51 will be exposed. Finally, the radiator fan 34 will form a negative pressure and generate suction in the control box 2 and the stay frame 51 respectively, and the excess heat inside the stay frame 51 will be discharged outward through the radiator fan 34, so as to discharge the excess heat inside the stay frame 51 and the heat preservation oven 61 to the outside and not pollute the environment.

[0042] When the present invention is in use: First, put the wet sludge into the retention frame 51, then connect an external pipe to the inlet pipe 71. Subsequently, dry waste heat will flow through the external pipe and enter the inlet pipe 71. The waste heat is provided by the heat generated by other heat sources in the factory area, such as boilers. The waste heat entering the interior of the inlet pipe 71 will impact the blocking disc 78, and the other end of the blocking disc 78 is connected to the air blocking head 77. Therefore, the air blocking head 77 will move along the horizontal rail 79 and towards the interior of the inlet pipe 71, while compressing the spring 70. As the air blocking head 77 penetrates deeper into the interior of the inlet pipe 71, it will separate from the internal pipe 76. Immediately afterwards, the waste heat will flow through the separated space between the two and impact on the stretched filter screen 703. The two ends of the stretched filter screen 703 are respectively fixedly connected to the inner side of the inlet pipe 71 and the outer side of the air blocking head 77. Therefore, the inward movement of the air blocking head 77 causes the stretched filter screen 703 to extend and filter out impurities and dust in the waste heat. Finally, the waste heat will pass through the stretched filter screen 703 and enter the deep interior of the inlet pipe 71. The inlet pipe 71 is fixedly connected to the outside of the heat preservation oven 61, and air inlet holes 74 are provided on the outside of the heat preservation oven 61. Therefore, the waste heat will enter the heat preservation oven 61 successively through the air inlet holes 74 and the ventilation partition disc 75 to realize the heating and drying treatment of the wet sludge. In addition, after all the waste heat has flowed into the interior of the inlet pipe 71, the air blocking head 77 will block the internal pipe 76 again under the action of the spring 70, and at the same time, the stretched filter screen 703 will return to the contracted state. At this time, start the external air pump 72, causing the external air pump 72 to generate suction at the top of the inlet pipe 71. Immediately afterwards, the resilient ring piece 702 affected by the suction will deflect towards the direction where the external air pump 72 generates suction. Subsequently, the impurities and dust filtered by the stretched filter screen 703 will pass through the bent resilient ring piece 702 and be sucked into the external air pump 72 for collection and treatment.

[0043] When the equipment is operating stably, dry hot air is sent into the bottom of the heat preservation oven 61 by a blower and penetrates the wet sludge in the retention frame 51. Subsequently, the moisture in the sludge is heated and evaporated into water vapor. Then, the wet air flows through the first circulation holes 52 and enters the evaporation component 4 of the heat pump system for cooling and dehumidification. The interior of the evaporation component 4 is mainly an evaporator. The refrigerant releases the latent heat of condensation of the wet air absorbed in the evaporator at the condensation component 1. The dry hot air is heated by the condensation component 1 and then sent into the retention frame 51 by the fan inside it through the second circulation holes 53 to continue drying the sludge.

[0044] Inside the residence frame 51, there is a heat-conducting spiral ring 55 connected by a support rod 54. The drying waste heat entering the interior of the heat preservation oven 61 from the air inlet hole 74 and the drying hot air entering the interior of the residence frame 51 from the second circulation hole 53 will both come into contact with the heat-conducting spiral ring 55. The wet sludge wraps the heat-conducting spiral ring 55. At the same time, the heat-conducting spiral ring 55 has heat-conducting properties. Therefore, some of the heat inside the hot air discharged from the air inlet hole 74 and the second circulation hole 53 will be transferred to the heat-conducting spiral ring 55. Then, the heat-conducting spiral ring 55 will transfer the heat to every corner of itself to quickly dry the interior of the wet sludge. In addition, when the sludge drying is completed, an external power device is used to make the screening net 58 deflect downward through the inner shaft 57. The first magnetic blocks 59 fixedly connected to both ends of the screening net 58 will move downward accordingly and be exposed. Then, a repulsive relationship will be generated between the first magnetic blocks 59 and the second magnetic blocks 64. Therefore, the insertion limiting plate 63 connected to the second magnetic blocks 64 will extend outward from the central panel 62. At the same time, the side plate 65 connected to the insertion limiting plate 63 will stretch the compression spring 66. Finally, through the downward deflection of the screening net 58 and the outward extension of the insertion limiting plate 63, the dried sludge can be smoothly discharged out through the bottom of the heat preservation oven 61.

[0045] When the temperature inside the heat preservation oven 61 or the residence frame 51 is too high and reaches the set value, the servo motor 33 is started, causing the heat dissipation fan 34 connected to its output end through a coupling to rotate. At the same time, the first gear 35 fitted on the output end of the servo motor 33 will rotate and engage in transmission with the second gear 36. The central part of the second gear 36 is connected to the friction column sleeve 38 through a tooth shaft 37. In addition, the interior of the friction column sleeve 38 is fitted with the outer connecting rod 39 by extrusion. Therefore, at first, the second gear 36 will drive the tooth shaft 37, the friction column sleeve 38, and the outer connecting rod 39 to rotate together. The outer side of the outer connecting rod 39 is connected to the sleeve roller 30, and the surface of the sleeve roller 30 is connected to the winding strip 301. The other end of the winding strip 301 is connected to the sealing plate 304. Therefore, the sealing plate 304 will move outward along the attachment rail 305 and pass through the residence frame 51. At this time, another hole communicating between the control box 2 and the residence frame 51 will be exposed. Finally, the heat dissipation fan 34 will form a negative pressure and generate suction on the control box 2 and the interior of the residence frame 51, and the excess heat inside the residence frame 51 will be discharged out through the heat dissipation fan 34.

[0046] The above embodiments are only the preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Those of ordinary skill in the art, starting from the above concepts and without creative labor, the various transformations made all fall within the scope of protection of the present invention.

Claims

1. A sludge drying waste heat utilization heat pump, characterized in that, Including: A placement mechanism (5) for placing and treating wet sludge; A discharge mechanism (6) for discharging the dried sludge; A waste heat mechanism (7) for introducing the waste heat generated by an external boiler into the oven; A heat dissipation mechanism (3) for discharging the excess heat inside the oven; The placement mechanism (5) is arranged on the discharge mechanism (6), the waste heat mechanism (7) is fixedly installed on the discharge mechanism (6), a condensation component (1) is fixedly installed on the outside of the discharge mechanism (6), a control box (2) is fixedly connected to the condensation component (1), the heat dissipation mechanism (3) is arranged inside the control box (2), and an evaporation component (4) is fixedly installed inside the control box (2); Among them, the placement mechanism (5) includes a stay frame (51), the outside of the stay frame (51) is fixedly connected to the control box (2), a first circulation hole (52) and a second circulation hole (53) are respectively opened at the connecting parts of the stay frame (51) and the control box (2), a support rod (54) is fixedly connected to the inside of the stay frame (51), and a heat-conducting spiral ring (55) is fixedly connected to the end of the support rod (54) away from the stay frame (51).

2. A sludge drying waste heat utilization heat pump according to claim 1, characterized in that: A middle support (56) is fixedly installed at the bottom of the inner cavity of the stay frame (51), an inner shaft (57) is fixedly connected to the inside of the middle support (56), a screening net (58) is rotatably connected to the outside of the inner shaft (57), a first magnetic block (59) is fixedly connected to the end of the screening net (58) away from the middle support (56), and the sludge is placed on the screening net (58).

3. The sludge drying waste heat utilization heat pump according to claim 1, wherein: The discharge mechanism (6) includes a heat-insulating oven (61), the heat-insulating oven (61) is fixedly installed at the bottom of the stay frame (51), the outside of the heat-insulating oven (61) is fixedly connected to the condensation component (1) and they are interconnected, a central insert plate (62) is fixedly connected to the central part of the inner cavity of the heat-insulating oven (61), and insertion limit plates (63) are symmetrically sleeved at both ends of the central insert plate (62), and the insertion limit plates (63) penetrate through the outside of the heat-insulating oven (61) and extend into its interior.

4. A sludge drying waste heat utilization heat pump according to claim 3, characterized in that: A second magnetic block (64) is fixedly connected to the top of the insertion limit plate (63), and a repulsive relationship is maintained between the first magnetic block (59) and the second magnetic block (64). A side plate (65) is fixedly connected to the end of the insertion limit plate (63) away from the central insert plate (62). Compression springs (66) are symmetrically arranged at both ends of the insertion limit plate (63), the outer end surface of the compression spring (66) is fixedly connected to the side plate (65), and the end of the compression spring (66) away from the side plate (65) is fixedly connected to the outside of the heat-insulating oven (61).

5. A sludge drying waste heat utilization heat pump according to claim 1, characterized in that: The waste heat mechanism (7) includes an inlet pipe (71) fixedly installed on the outer side of the heat preservation oven (61). A perforation is formed at the top of the inlet pipe (71), and an external air pump (72) is fixedly installed at the top of the perforation. One end of the external air pump (72) away from the inlet pipe (71) is fixedly connected to a pump bracket (73), and the pump bracket (73) is fixedly connected to the top of the heat preservation oven (61). An air inlet hole (74) is formed on the outer side of the heat preservation oven (61), and a ventilation partition disk (75) is fixedly connected to the inner cavity of the heat preservation oven (61).

6. The sludge drying waste heat utilization heat pump according to claim 5, characterized in that: An internal pipe (76) is fixedly installed inside the inlet pipe (71). A gas blocking head (77) is sleeved at the central part of the internal pipe (76). One end of the gas blocking head (77) close to the internal pipe (76) is fixedly connected to a blocking disk (78). The outer side of the gas blocking head (77) is slidably fitted with a cross rail (79). A spring (70) is fixedly connected to the inner side of the cross rail (79), and one end of the spring (70) away from the cross rail (79) is fixedly connected to the gas blocking head (77).

7. A sludge drying waste heat utilization heat pump according to claim 6, characterized in that: Limiting rings (701) are fixedly connected to the outer side of the internal pipe (76) and the inner side of the inlet pipe (71). A resilient ring piece (702) is fixedly connected to one side of the limiting ring (701) away from the inlet pipe (71). A stretching filter screen (703) is arranged beside the resilient ring piece (702). The top end of the stretching filter screen (703) is fixedly connected to the inner side of the inlet pipe (71), and the bottom end of the stretching filter screen (703) is fixedly connected to the outer side of the gas blocking head (77).

8. A sludge drying waste heat utilization heat pump according to claim 1, characterized in that: The heat dissipation mechanism (3) includes a bent rod (31) fixedly connected to the inner side of the control box (2). One end of the bent rod (31) away from the control box (2) is fixedly connected to a frame (32). A servo motor (33) is fixedly installed at the central part of the frame (32). The output end of the servo motor (33) is connected to a heat dissipation fan (34) through a coupling. A first gear (35) is press-fitted on the outer side of the output end of the servo motor (33). A second gear (36) is meshed and driven on the outer side of the first gear (35). A tooth shaft (37) is press-fitted at the central part of the second gear (36).

9. A sludge drying waste heat utilization heat pump according to claim 1, characterized in that: An outer connecting rod (39) is rotatably connected to the inside of the control box (2). A friction column sleeve (38) is press-fitted at one end of the outer connecting rod (39) away from the control box (2). One end of the friction column sleeve (38) away from the outer connecting rod (39) is fixedly connected to the tooth shaft (37). A roller sleeve (30) is fixedly connected to the outer side of the outer connecting rod (39). A winding strip (301) is fixedly connected to the outer side of the roller sleeve (30). A first positioning rod (302) and a second positioning rod (303) are respectively press-fitted on the outer side of the winding strip (301). The first positioning rod (302) is fixedly connected to the inner side of the control box (2), and the second positioning rod (303) is fixedly connected to the outer side of the control box (2).

10. A sludge drying waste heat utilization heat pump according to claim 9, characterized in that: One end of the coiling strip (301) far away from the sleeve roller (30) is fixedly connected with a sealing plate (304). Both the upper and lower ends of the sealing plate (304) are slidably fitted with a rail attachment (305). A fourth magnet block (307) is fixedly connected inside the rail attachment (305). One end of the fourth magnet block (307) far away from the rail attachment (305) is provided with a third magnet block (306), and the third magnet block (306) is fixedly connected to the outside of the sealing plate (304).

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