A heat pump auxiliary type sludge low-temperature drying and incineration integrated device

Abstract

The present application relates to sludge treatment technical field, disclose a kind of heat pump auxiliary type sludge low-temperature drying incineration integrated equipment, including low-temperature drying mechanism and incinerator, the inner wall of the low-temperature drying mechanism is connected with auxiliary drying mechanism, the top of the auxiliary drying mechanism is connected with continuous scattering mechanism, the low-temperature drying mechanism includes low-temperature drying box, the present application is designed by using auxiliary compression roller and flow plate, make sludge in drying process and heat exchange surface fully contact, heat is transferred by solid contact mode, avoid the diffusion problem of dust and odor in traditional hot air convection mode, improve the thermal efficiency simultaneously;Adopt closed heat pump circulation system, effectively avoid the influence of wind speed and temperature fluctuation on drying process, realize the temperature fluctuation in drying area, sludge drying uniform, ensure the stability and high efficiency of sludge drying.

Description

Technical Field

[0001] This invention belongs to the field of sludge treatment technology, and specifically relates to a heat pump-assisted integrated equipment for low-temperature drying and incineration of sludge. Background Technology

[0002] The heat pump-assisted low-temperature sludge drying and incineration integrated equipment, as an innovative sludge treatment system, deeply integrates heat pump energy-saving technology with drying and incineration processes, achieving low-carbon, harmless, and resource-oriented sludge treatment throughout the entire process. This system significantly reduces energy consumption through low-temperature drying technology, and then thoroughly decomposes organic pollutants in the sludge through high-temperature incineration, ultimately producing stable ash and achieving a significant sludge reduction effect. Its core working principle is as follows: the heat pump unit efficiently absorbs low-grade heat energy from ambient air or industrial waste heat through the evaporator, which is then adiabatically compressed by the compressor to a high temperature. Finally, on the condenser side, heat exchange reduces the sludge moisture content from the initial level to the target range, providing high-quality fuel for subsequent incineration.

[0003] In existing technologies, integrated equipment for low-temperature drying and incineration of sludge generally adopts a hot air circulation system, which has three major technical bottlenecks:

[0004] Risk of uncontrolled heat and mass transfer: Traditional hot air convection heat exchange methods are difficult to achieve precise coordinated control of wind speed and temperature, which leads to local overheating of the sludge surface and particle breakage. As a result, a certain proportion of fine sludge particles are dispersed with the circulating air, forming secondary dust pollution.

[0005] Dust explosion safety hazards: When the solid content of dried sludge exceeds a certain threshold, a fine dust cloud will form in the system, with a low lower explosive limit concentration; under the action of ignition sources such as electrostatic discharge and mechanical friction, dust explosion may generate high pressure, seriously threatening the safe operation of equipment;

[0006] Excessive emissions of odorous gases: During the drying process, the release rate of volatile organic compounds in sludge is positively correlated with temperature. Under higher operating conditions, the release of odorous substances such as ammonia and hydrogen sulfide increases significantly, requiring an additional exhaust gas treatment system for treatment. The existing exhaust gas treatment system adopts a combined process, which has limited removal efficiency for polar pollutants and is difficult to meet the relevant emission standards.

[0007] Therefore, it is necessary to invent a heat pump-assisted sludge low-temperature drying and incineration integrated equipment to solve the above problems, which can provide stable and efficient sludge low-temperature drying. Summary of the Invention

[0008] To address the aforementioned problems, this invention provides a heat pump-assisted low-temperature sludge drying and incineration integrated equipment to solve the issues raised in the background section.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a heat pump-assisted sludge low-temperature drying and incineration integrated equipment, comprising a low-temperature drying mechanism and an incinerator, wherein an auxiliary drying mechanism is connected to the inner wall of the low-temperature drying mechanism, and a continuous dispersing mechanism is connected to the top of the auxiliary drying mechanism, wherein...

[0010] The low-temperature drying mechanism includes a low-temperature drying box. First synchronous wheels are rotatably provided on both sides of the top of the inner wall of the low-temperature drying box. A first synchronous filter belt is driven on the outer wall of the two first synchronous wheels. Second synchronous wheels are rotatably provided on both sides of the bottom of the inner wall of the low-temperature drying box. A second synchronous filter belt is driven on the outer wall of the two second synchronous wheels.

[0011] The auxiliary drying mechanism includes multiple flow plates fixed to the inner wall of the low-temperature drying chamber. Each of the multiple flow plates has a flow groove in the middle. The two ends of the multiple flow grooves are connected in sequence by multiple flow pipes. The top of each of the multiple flow plates is in contact with one side of the second synchronous filter belt. Multiple auxiliary pressure rollers are rotatably arranged inside the low-temperature drying chamber. One end of each of the multiple auxiliary pressure rollers and one side of one of the first synchronous wheels are fixed with a linkage gear through the low-temperature drying chamber. The outer walls of the multiple linkage gears are connected by multiple linkage tooth chains. The bottom ends of the multiple auxiliary pressure rollers are in contact with the surface of the second synchronous filter belt.

[0012] Preferably, an auxiliary heat pump is fixedly installed on one side of the low-temperature drying box, the exhaust end of the incinerator is connected to the auxiliary heat pump through a conveyor frame, both ends of the plurality of flow plates are connected to the drain end of the auxiliary heat pump through connecting pipes, and a protective ring is fixedly installed on the outer wall of the incinerator.

[0013] Preferably, one end of one of the first synchronous pulleys and one end of one of the second synchronous pulleys are fixedly provided with a first positioning gear through the low-temperature drying box, the tooth surfaces of the two first positioning gears are meshed with a second positioning gear, the tooth surfaces of the two second positioning gears mesh with each other, a drive motor is fixedly provided on one side of the low-temperature drying box, and the output end of the drive motor is fixedly connected to the other end of one of the second synchronous pulleys.

[0014] Preferably, one end of the top of the low-temperature drying box is connected to a feed inlet, one side of the low-temperature drying box is provided with a discharge chute, one side of the low-temperature drying box is connected to a collection box through the discharge chute, the bottom of the collection box is rotatably provided with a conveying auger, one side of the collection box is fixedly provided with a reduction motor, the output end of the reduction motor is fixedly connected to one end of the conveying auger, and one end of the bottom of the collection box is connected to the feed end of the incinerator through a conveying pipe.

[0015] Preferably, a guide plate is fixedly provided inside the collection box, and a first cleaning brush is fixedly provided on one side of the guide plate, with one side of the first cleaning brush contacting the outer wall of the second synchronous filter belt.

[0016] Preferably, the inner wall of the low-temperature drying box is fixedly provided with a plurality of connecting frames, and a second cleaning brush is fixedly provided on one side of each of the plurality of connecting frames, and one side of each of the plurality of second cleaning brushes contacts one side of the outer wall of the plurality of auxiliary pressure rollers.

[0017] Preferably, the continuous dispersing mechanism includes a connecting shaft rotating inside a low-temperature drying chamber. One end of the connecting shaft passes through the low-temperature drying chamber and is fixedly connected to the middle position of one of the second positioning gears. A first positioning helical gear is fixedly provided at one end of the outer wall of the connecting shaft. A second positioning helical gear is meshed with the tooth surface of the first positioning helical gear. A fixed shaft is fixedly provided at the middle position of the second positioning helical gear. A plurality of third positioning helical gears are fixedly provided on the outer wall of the fixed shaft. A fourth positioning helical gear is meshed with the tooth surface of each of the plurality of third positioning helical gears. A plurality of positioning frames are fixedly provided at the middle position of the low-temperature drying chamber. A plurality of control gears are rotatably provided at the top of each of the plurality of positioning frames. The tooth surfaces of the plurality of control gears mesh with each other. A rotating frame is fixedly provided at the bottom of each of the plurality of control gears passing through the positioning frames. A plurality of stirring strips are fixedly provided at the bottom of each of the plurality of rotating frames. The bottom of each of the plurality of stirring strips contacts the top of the second synchronous filter belt.

[0018] Preferably, a filter support plate is fixedly installed inside the low-temperature drying box, and one side of the first synchronous filter belt is in contact with the top of the filter support plate.

[0019] Preferably, the top of the collection box is connected to an exhaust fan mechanism, which includes an exhaust trough connected to the top of the collection box. A positioning shaft is rotatably provided at the middle position of the exhaust trough. Multiple exhaust fans are fixedly provided on the outer wall of the positioning shaft. One end of the positioning shaft passes through the exhaust trough and is fixedly provided with a driven gear. One end of another second synchronous pulley passes through the low-temperature drying box and is fixedly provided with a driving gear. The tooth surface of the driving gear meshes with the tooth surface of the driven gear. One end of the top of the exhaust trough is connected to the air inlet of the incinerator through an exhaust pipe.

[0020] Preferably, an intelligent control panel is fixedly provided on one side of the low-temperature drying chamber, and both the drive motor and the geared motor are electrically connected to an external power supply through the intelligent control panel.

[0021] The technical effects and advantages of this invention are as follows:

[0022] 1. This invention provides a stable and efficient low-temperature heat source for the system by recovering and recycling the heat generated during sludge combustion, while reducing energy consumption and operating costs. By adopting an auxiliary pressure roller and flow plate design, the sludge is fully in contact with the heat exchange surface during the drying process, and heat is transferred through solid contact, avoiding the problem of dust and odor diffusion in traditional hot air convection methods, while improving the efficiency of heat energy utilization. The closed-loop heat pump circulation system effectively avoids the impact of wind speed and temperature fluctuations on the drying process. By precisely controlling the heat pump output temperature, small temperature fluctuations and uniform sludge drying are achieved in the drying zone, ensuring the stability and efficiency of sludge drying.

[0023] 2. By optimizing the drying process and equipment structure, this invention reduces the amount of dust generated during the drying process; the closed-loop circulation system and the squeezing action of the auxiliary pressure rollers effectively reduce the breakage and flying of sludge particles, reduce the risk of dust explosion, and improve the safety of equipment operation.

[0024] 3. The present invention drives the stirring bar group through the multi-stage gear transmission system in the continuous dispersing mechanism to achieve dynamic turning during the sludge drying process, destroy the temperature gradient on the surface of the agglomeration, and control the temperature difference in the drying zone. This mechanism causes the accumulated sludge layer to continuously shift and break up, exposing a new heat transfer interface, effectively solving the problem of heat transfer obstruction caused by the easy agglomeration of high viscosity sludge.

[0025] 4. This invention has continuous feeding and discharging functions through the transmission of the low-temperature drying mechanism, realizing continuous treatment of sludge drying-incineration and improving treatment efficiency.

[0026] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the heat pump-assisted sludge low-temperature drying and incineration integrated equipment of the present invention from one angle.

[0029] Figure 2 This is a schematic diagram from angle two of the heat pump-assisted sludge low-temperature drying and incineration integrated equipment of the present invention;

[0030] Figure 3 This is a schematic diagram showing the distribution of the auxiliary heat pump, conveyor frame, and incinerator of the present invention;

[0031] Figure 4 This is a cross-sectional schematic diagram of the low-temperature drying chamber of the present invention;

[0032] Figure 5 This is a schematic diagram showing the distribution of the low-temperature drying box and the collection box of the present invention;

[0033] Figure 6 This is a schematic diagram showing the distribution of the auxiliary drying mechanism, continuous dispersing mechanism, and air extraction mechanism of the present invention;

[0034] Figure 7 This is a schematic diagram of the transmission of the low-temperature drying mechanism of the present invention;

[0035] Figure 8 This is a schematic diagram of the auxiliary drying mechanism of the present invention;

[0036] Figure 9 This is a schematic diagram of the transmission relationship of the auxiliary drying mechanism of the present invention;

[0037] Figure 10 This is a schematic diagram showing the distribution of the flow plate, flow tube, and connecting tube in the auxiliary drying mechanism of the present invention;

[0038] Figure 11 This is a cross-sectional schematic diagram of the flow plate of the present invention;

[0039] Figure 12 This is a schematic diagram of the continuous dispersing mechanism of the present invention;

[0040] Figure 13 This is a partial schematic diagram of the continuous dispersing mechanism of the present invention;

[0041] Figure 14 This is a schematic diagram of the air intake mechanism of the present invention;

[0042] Figure 15 This is a schematic diagram of the distribution of the air intake mechanism of the present invention.

[0043] In the diagram: 1. Low-temperature drying mechanism; 101. Low-temperature drying box; 102. Feed inlet; 103. Discharge chute; 104. Collection box; 105. First synchronous pulley; 106. First synchronous filter belt; 107. Filter support plate; 108. Second synchronous pulley; 109. Second synchronous filter belt; 110. Guide plate; 111. First cleaning brush; 112. First positioning gear; 113. Second positioning gear; 114. Conveying auger; 115. Conveying pipe; 116. Gear motor; 2. Auxiliary heat pump; 3. Incinerator; 4. Protective ring; 5. Drive motor; 6. Auxiliary drying mechanism; 601. Flow plate; 602. Auxiliary pressure roller; 603. Linkage plate; 604. Driven gear; 605. Linkage chain; 606. Connecting frame; 607. Second cleaning brush; 608. Flow pipe; 609. Flow channel; 7. Continuous dispersing mechanism; 701. Connecting shaft; 702. First positioning helical gear; 703. Second positioning helical gear; 704. Fixed shaft; 705. Third positioning helical gear; 706. Fourth positioning helical gear; 707. Control gear; 708. Positioning frame; 709. Rotating frame; 710. Stirring bar; 8. Exhaust fan mechanism; 801. Driven gear; 802. Driven gear; 803. Positioning shaft; 804. Exhaust fan; 805. Exhaust channel; 806. Exhaust pipe; 9. Conveying frame. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] This invention provides, for example Figure 1-15 The heat pump-assisted sludge low-temperature drying and incineration integrated equipment shown includes a low-temperature drying mechanism 1 and an incinerator 3. An auxiliary drying mechanism 6 is connected to the inner wall of the low-temperature drying mechanism 1, and a continuous dispersing mechanism 7 is connected to the top of the auxiliary drying mechanism 6.

[0046] The low-temperature drying mechanism 1 includes a low-temperature drying box 101. First synchronous pulleys 105 are rotatably provided on both sides of the top of the inner wall of the low-temperature drying box 101. First synchronous filter belts 106 are driven on the outer walls of the two first synchronous pulleys 105. Second synchronous pulleys 108 are rotatably provided on both sides of the bottom of the inner wall of the low-temperature drying box 101. Second synchronous filter belts 109 are driven on the outer walls of the two second synchronous pulleys 108.

[0047] One end of one of the first synchronous pulleys 105 and one end of one of the second synchronous pulleys 108 are both fixedly provided with a first positioning gear 112 through the low temperature drying box 101. The tooth surfaces of the two first positioning gears 112 are both meshed with a second positioning gear 113. The tooth surfaces of the two second positioning gears 113 mesh with each other. A drive motor 5 is fixedly provided on one side of the low temperature drying box 101. The output end of the drive motor 5 is fixedly connected to the other end of one of the second synchronous pulleys 108.

[0048] The top end of the low-temperature drying box 101 is connected to the feed inlet 102. A discharge chute 103 is opened on one side of the low-temperature drying box 101. A collection box 104 is connected to one side of the low-temperature drying box 101 through the discharge chute 103. A conveying auger 114 is rotatably installed at the bottom end of the collection box 104. A reduction motor 116 is fixedly installed on one side of the collection box 104. The output end of the reduction motor 116 is fixedly connected to one end of the conveying auger 114. One end of the bottom of the collection box 104 is connected to the feed end of the incinerator 3 through the conveying pipe 115.

[0049] A guide plate 110 is fixedly installed inside the collection box 104. A first cleaning brush 111 is fixedly installed on one side of the guide plate 110. One side of the first cleaning brush 111 is in contact with the outer wall of the second synchronous filter belt 109.

[0050] When a heat pump-assisted sludge low-temperature drying and incineration integrated equipment is required, the sludge, after being cut into strips, is conveyed into the low-temperature drying chamber 101 through the feed inlet 102. The output of the drive motor 5, fixed to one side of the low-temperature drying chamber 101, drives one of the second synchronous pulleys 108 to rotate. Through the meshing of the two first positioning gears 112 and two second positioning gears 113, the two first synchronous pulleys 105 drive the first synchronous filter belt 106 for stable transmission, while the two second synchronous pulleys 108 drive the second synchronous filter belt 109... The sludge is steadily driven at the same speed, causing it to reciprocate once inside the low-temperature drying box 101. Guided by the guide plate 110 and cleaned by the first cleaning brush 111 fixed on one side of the guide plate 110, the sludge is finally collected through the collection box 104. The output end of the geared motor 116 fixed on one side of the collection box 104 drives the conveying auger 114 to rotate, so that the dried sludge is transported along the conveying pipe 115 to the incinerator 3 for incineration through the operation of the conveying auger 114, so that the sludge is treated continuously by drying and incineration.

[0051] The auxiliary drying mechanism 6 includes multiple flow plates 601 fixed to the inner wall of the low-temperature drying box 101. Each flow plate 601 has a flow groove 609 in the middle. The two ends of the multiple flow grooves 609 are connected in sequence by multiple flow pipes 607. The top of each flow plate 601 is in contact with one side of the second synchronous filter belt 109. Multiple auxiliary pressure rollers 602 are rotatably arranged inside the low-temperature drying box 101. One end of each auxiliary pressure roller 602 and one side of one of the first synchronous wheels 105 are fixedly connected to a linkage gear 603 through the low-temperature drying box 101. The outer walls of the multiple linkage gears 603 are connected by multiple linkage gear chains 604. The bottom ends of each auxiliary pressure roller 602 are in contact with the surface of the second synchronous filter belt 109.

[0052] An auxiliary heat pump 2 is fixedly installed on one side of the low-temperature drying box 101. The exhaust end of the incinerator 3 is connected to the auxiliary heat pump 2 through the conveyor frame 9. Both ends of the multiple flow plates 601 are connected to the drain end of the auxiliary heat pump 2 through the connecting pipe 608. A protective ring 4 is fixedly installed on the outer wall of the incinerator 3.

[0053] The inner wall of the low-temperature drying box 101 is fixedly provided with multiple connecting frames 605, and a second cleaning brush 606 is fixedly provided on one side of each of the multiple connecting frames 605. One side of each of the multiple second cleaning brushes 606 contacts one side of the outer wall of the multiple auxiliary pressure rollers 602.

[0054] The high-temperature steam generated in the incinerator 3 is connected to the auxiliary heat pump 2 via the conveyor frame 9. The auxiliary heat pump 2 converts the steam into intermediate medium heat transfer oil. The heat transfer oil is stably transmitted through the connecting pipe 608, the flow groove 609, and the flow pipe 607, ensuring that the intermediate medium heat transfer oil with a uniform temperature always flows within the flow plate 601. During the sludge drying process, when the sludge falls to the top of the second synchronous filter belt 109, the second synchronous filter belt 109 drives the sludge to move. The auxiliary pressure roller 602, which rotates inside the low-temperature drying box 101, is connected to the linkage gear 603 and the linkage tooth. The meshing of chain 604 causes multiple auxiliary pressure rollers 602 to rotate in the opposite direction to the second synchronous filter belt 109, which fully assists in squeezing the sludge containing moisture. At this time, the sludge is in close contact with the flow plate 601 to facilitate heat exchange. The surface of the auxiliary pressure rollers 602 is cleaned by the second cleaning brush 606 fixed on one side of the connecting frame 605 to prevent sludge from sticking and improve the sludge drying efficiency. This not only benefits the sludge drying process but also reduces the floor space occupied by the drying equipment.

[0055] In one specific embodiment of the present invention, the continuous dispersing mechanism 7 includes a connecting shaft 701 that rotates inside a low-temperature drying chamber 101. One end of the connecting shaft 701 passes through the low-temperature drying chamber 101 and is fixedly connected to the middle position of one of the second positioning gears 113. A first positioning helical gear 702 is fixedly provided on one end of the outer wall of the connecting shaft 701. The tooth surface of the first positioning helical gear 702 meshes with a second positioning helical gear 703. A fixed shaft 704 is fixedly provided at the middle position of the second positioning helical gear 703. A plurality of third positioning helical gears are fixedly provided on the outer wall of the fixed shaft 704. 705, the tooth surfaces of multiple third positioning helical gears 705 are all meshed with fourth positioning helical gears 706, multiple positioning frames 708 are fixedly installed in the middle position of the low temperature drying box 101, multiple control gears 707 are rotatably installed at the top of the multiple positioning frames 708, the tooth surfaces of the multiple control gears 707 mesh with each other, the bottom ends of the multiple control gears 707 pass through the positioning frames 708 and are fixedly installed with rotating frames 709, the bottom ends of the multiple rotating frames 709 are all fixedly installed with multiple stirring bars 710, and the bottom ends of the multiple stirring bars 710 are all in contact with the top end of the second synchronous filter belt 109;

[0056] A filter support plate 107 is fixedly installed inside the low-temperature drying box 101, and one side of the first synchronous filter belt 106 is in contact with the top of the filter support plate 107.

[0057] When the second positioning gear 113 rotates, the connecting shaft 701 fixed to one end of the second positioning gear 113 drives the first positioning helical gear 702 to rotate. The tooth surfaces of the first positioning helical gear 702 mesh with the tooth surfaces of the second positioning helical gear 703, causing the second positioning helical gear 703 to drive the fixed shaft 704 to rotate. This causes the tooth surfaces of multiple third positioning helical gears 705 fixed to the outer wall of the fixed shaft 704 to mesh with the tooth surfaces of multiple fourth positioning helical gears 706, causing the multiple fourth positioning helical gears 706 to drive the multiple control gears 707 to rotate. The meshing of 7 gears causes multiple control gears 707 to pass through the positioning frame 708, driving the rotating frame 709 and the stirring bar 710 to rotate. Since the bottom ends of multiple stirring bars 710 are in contact with the surface of the second synchronous filter belt 109, the sludge squeezed by the auxiliary pressure roller 602 on the surface of the second synchronous filter belt 109 is re-dispersed, so that the water in the sludge can be evaporated, which is beneficial to the subsequent drying process. At the same time, the stirring bar 710 at the end works to ensure that the sludge is fully fed, avoids sludge sticking, and increases the working stability of the heat pump assisted sludge low-temperature drying and incineration integrated equipment.

[0058] In one specific embodiment of the present invention, the top of the collection box 104 is connected to the air-guiding mechanism 8. The air-guiding mechanism 8 includes an air-guiding groove 805 connected to the top of the collection box 104. A positioning shaft 803 is rotatably provided at the middle position of the air-guiding groove 805. A plurality of air-guiding fans 804 are fixedly provided on the outer wall of the positioning shaft 803. One end of the positioning shaft 803 passes through the air-guiding groove 805 and is fixedly provided with a driven gear 802. One end of another second synchronous wheel 108 passes through the low temperature drying box 101 and is fixedly provided with a driving gear 801. The tooth surface of the driving gear 801 meshes with the tooth surface of the driven gear 802. One end of the top of the air-guiding groove 805 is connected to the air inlet of the incinerator 3 through the air-guiding pipe 806.

[0059] During the sludge drying process, the generated gas is concentrated inside the low-temperature drying box 101. While the second synchronous wheel 108 rotates, the drive gear 801 fixed on one side of the second synchronous wheel 108 rotates synchronously. Through the meshing of the tooth surface of the drive gear 801 and the tooth surface of the driven gear 802, and through the coefficient ratio of the drive gear 801 and the driven gear 802, the driven gear 802 drives the positioning shaft 803 and the induced draft fan 804 to rotate rapidly. This causes the gas accumulated inside the low-temperature drying box 101 and the collection box 104 to be quickly pumped into the air inlet of the incinerator 3. The generated gas is then subjected to high-temperature incineration in the incinerator 3, improving gas treatment efficiency and preventing the release of harmful gases during drying.

[0060] In one specific embodiment of the present invention, a smart control panel is fixedly provided on one side of the low-temperature drying chamber 101, and the drive motor 5 and the geared motor 116 are both electrically connected to an external power supply through the smart control panel.

[0061] The mechanical linkage of the low-temperature drying mechanism 1, the auxiliary drying mechanism 6, the continuous dispersing mechanism 7, and the induced draft mechanism 8 enables multiple tasks to be completed in a coordinated manner without adding electrical equipment, thereby improving the efficiency of equipment use.

[0062] In the heat pump-assisted low-temperature sludge drying and incineration integrated equipment, the heat pump transfers the high-temperature flue gas or steam generated during sludge incineration to the intermediate medium, heat transfer oil, through a heat exchanger. This intermediate medium absorbs heat and its temperature rises, forming a high-temperature heat source. The temperature can be controlled at 90-95℃, a range that fully meets the requirements for low-temperature sludge drying. Within this temperature range, the moisture in the sludge can be effectively evaporated, while preventing the volatilization of organic matter and the generation of malodorous gases at high temperatures. The high-temperature heat transfer oil transfers heat to the sludge through the flow plate 601, causing the moisture in the sludge to evaporate. Heat is transferred through solid-solid contact, preventing the diffusion of dust and odors, making it suitable for treating highly viscous sludge that is prone to clumping.

[0063] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A heat pump assisted sludge low-temperature drying and incineration integrated device, comprising a low-temperature drying mechanism (1) and an incinerator (3), characterized in that: The inner wall of the low-temperature drying mechanism (1) is connected with an auxiliary drying mechanism (6), the top end of the auxiliary drying mechanism (6) is connected with a continuous scattering mechanism (7), wherein, The low-temperature drying mechanism (1) comprises a low-temperature drying box (101), the inner wall top of the low-temperature drying box (101) is rotatably provided with a first synchronous wheel (105) on both sides, the outer wall of the two first synchronous wheels (105) is drivingly provided with a first synchronous filter belt (106), the inner wall bottom of the low-temperature drying box (101) is rotatably provided with a second synchronous wheel (108) on both sides, and the outer wall of the two second synchronous wheels (108) is drivingly provided with a second synchronous filter belt (109); The auxiliary drying mechanism (6) comprises a plurality of flow plates (601) fixed to the inner wall of the low-temperature drying box (101), a flow groove (609) is formed in the middle position of each of the plurality of flow plates (601), the two ends of each of the plurality of flow grooves (609) are sequentially communicated through a plurality of flow pipes (607), the top end of each of the plurality of flow plates (601) is in contact with one side of the second synchronous filter belt (109), a plurality of auxiliary compression rollers (602) are rotatably arranged in the low-temperature drying box (101), one end of each of the plurality of auxiliary compression rollers (602) and one side of one of the first synchronous wheels (105) are fixedly provided with a linkage gear (603) penetrating through the low-temperature drying box (101), the outer walls of the plurality of linkage gears (603) are drivingly connected through a plurality of linkage tooth chains (604), and the bottom end of each of the plurality of auxiliary compression rollers (602) is in contact with the surface of the second synchronous filter belt (109); One side of the low-temperature drying box (101) is fixedly provided with an auxiliary heat pump (2), the exhaust end of the incinerator (3) is communicated with the auxiliary heat pump (2) through a conveying frame (9), and the two ends of each of the plurality of flow plates (601) are communicated with the drainage end of the auxiliary heat pump (2) through a connecting pipe (608), and the outer wall of the incinerator (3) is fixedly provided with a protective ring (4); The inner wall of the low-temperature drying box (101) is fixedly provided with a plurality of connecting frames (605), one side of each of the plurality of connecting frames (605) is fixedly provided with a second cleaning brush (606), and one side of each of the plurality of second cleaning brushes (606) is in contact with one side of the outer wall of each of the plurality of auxiliary compression rollers (602). The continuous scattering mechanism (7) comprises a connecting shaft (701) rotating in the low-temperature drying box (101), one end of the connecting shaft (701) is fixedly connected with the middle position of one of the second positioning gears (113) penetrating through the low-temperature drying box (101), one end of the outer wall of the connecting shaft (701) is fixedly provided with a first positioning bevel gear (702), the tooth surface of the first positioning bevel gear (702) is meshed with a second positioning bevel gear (703), the middle position of the second positioning bevel gear (703) is fixedly provided with a fixed shaft (704), the outer wall of the fixed shaft (704) is fixedly provided with a plurality of third positioning bevel gears (705), the tooth surfaces of the plurality of third positioning bevel gears (705) are all meshed with fourth positioning bevel gears (706), a plurality of positioning frames (708) are fixedly arranged in the middle position of the low-temperature drying box (101), a plurality of control gears (707) are rotatably arranged at the top ends of the plurality of positioning frames (708), the tooth surfaces of the plurality of control gears (707) are meshed with each other, rotating frames (709) are fixedly arranged at the bottom ends of the plurality of control gears (707) penetrating through the positioning frames (708), a plurality of stirring bars (710) are fixedly arranged at the bottom ends of the plurality of rotating frames (709), and the bottom ends of the plurality of stirring bars (710) are in contact with the top ends of the second synchronous filtering belts (109).

2. The heat pump assisted sludge low-temperature drying and incineration integrated device according to claim 1, characterized in that: One end of one of the first synchronous wheels (105) and one end of one of the second synchronous wheels (108) are both fixedly provided with first positioning gears (112) penetrating through the low-temperature drying box (101), the tooth surfaces of the two first positioning gears (112) are both meshed with second positioning gears (113), the tooth surfaces of the two second positioning gears (113) are meshed with each other, and a driving motor (5) is fixedly arranged on one side of the low-temperature drying box (101), and the output end of the driving motor (5) is fixedly connected with the other end of one of the second synchronous wheels (108).

3. The heat pump assisted sludge low-temperature drying and incineration integrated device according to claim 2, characterized in that: One end of the low-temperature drying box (101) is communicated with a feeding port (102), one side of the low-temperature drying box (101) is provided with a discharging groove (103), one side of the low-temperature drying box (101) is communicated with a material collecting box (104) through the discharging groove (103), the bottom end of the material collecting box (104) is rotatably provided with a conveying auger (114), one side of the material collecting box (104) is fixedly provided with a speed reducer (116), the output end of the speed reducer (116) is fixedly connected with one end of the conveying auger (114), and one end of the bottom of the material collecting box (104) is communicated with the feeding end of the incinerator (3) through a conveying pipe (115).

4. The heat pump auxiliary sludge low-temperature drying and incineration integrated device according to claim 3, characterized in that: The inside of the material collecting box (104) is fixedly provided with a guide plate (110), one side of the guide plate (110) is fixedly provided with a first cleaning brush (111), and one side of the first cleaning brush (111) is in contact with the outer wall of the second synchronous filtering belt (109).

5. The heat pump assisted sludge low-temperature drying and incineration integrated device according to claim 1, characterized in that: The inside of the low-temperature drying box (101) is fixedly provided with a filter support plate (107), and one side of the first synchronous filter belt (106) is in contact with the top end of the filter support plate (107).

6. The heat pump assisted sludge low-temperature drying and incineration integrated device according to claim 3, characterized in that: The top end of the aggregate box (104) is communicated with an air guiding mechanism (8), the air guiding mechanism (8) comprises an air guiding groove (805) communicated with the top end of the aggregate box (104), a positioning shaft (803) is rotatably arranged at the middle position of the air guiding groove (805), a plurality of air guiding fans (804) are fixedly arranged on the outer wall of the positioning shaft (803), one end of the positioning shaft (803) is fixedly provided with a driven gear (802) penetrating through the air guiding groove (805), one end of the second synchronous wheel (108) is fixedly provided with a driving gear (801) penetrating through the low-temperature drying box (101), the tooth surface of the driving gear (801) is engaged with the tooth surface of the driven gear (802), and one end of the top of the air guiding groove (805) is communicated with the air inlet of the incinerator (3) through an air guiding pipe (806).

7. The heat pump auxiliary sludge low-temperature drying and incineration integrated device according to claim 3, characterized in that: One side of the low-temperature drying box (101) is fixedly provided with an intelligent control panel, and the driving motor (5) and the speed reducer motor (116) are electrically connected with the external power supply through the intelligent control panel.

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