Heat pump assisted sludge low-temperature drying and incineration integrated equipment

Abstract

The invention relates to the technical field of sludge treatment, and discloses heat pump assisted sludge low-temperature drying and incineration integrated equipment which comprises a low-temperature drying mechanism and an incinerator, the inner wall of the low-temperature drying mechanism is connected with an auxiliary drying mechanism, the top end of the auxiliary drying mechanism is connected with a continuous scattering mechanism, and the continuous scattering mechanism is connected with a heat pump. The low-temperature drying mechanism comprises a low-temperature drying box, by adopting the design of an auxiliary compression roller and a flowing plate, sludge is in full contact with a heat exchange surface in the drying process, heat is transferred in a solid contact mode, the problem of diffusion of dust and odor in a traditional hot air convection mode is avoided, and meanwhile the heat energy utilization efficiency is improved; a closed heat pump circulating system is adopted, the influence of wind speed and temperature fluctuation on the drying process is effectively avoided, the temperature fluctuation in the drying area is small and sludge drying is uniform by accurately controlling the output temperature of a heat pump, and the stability and high efficiency of sludge drying are ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of sludge treatment, and in particular relates to a heat pump-assisted sludge low-temperature drying and incineration integrated device. Background Art

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

[0003] In existing technologies, integrated sludge low-temperature drying and incineration equipment 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 struggle to achieve precise coordinated control of wind speed and temperature, leading to local overheating on the sludge surface and particle breakage. This causes a certain proportion of fine sludge particles to escape with the circulating air, resulting in secondary dust pollution.

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

[0006] Excessive malodorous gas emissions: The release rate of volatile organic compounds in sludge during the drying process is positively correlated with temperature. Under higher operating conditions, the release of malodorous substances such as ammonia and hydrogen sulfide increases significantly, requiring an additional tail gas treatment system for treatment. The existing tail gas treatment system uses a combined process, which has limited removal efficiency for polar pollutants and is difficult to meet 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 work. Summary of the Invention

[0008] In response to the above problems, the present invention provides a heat pump-assisted sludge low-temperature drying and incineration integrated equipment to solve the problems raised in the above background technology.

[0009] To achieve the above-mentioned object, 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 the inner wall of the low-temperature drying mechanism is connected to an auxiliary drying mechanism, and the top of the auxiliary drying mechanism is connected to a continuous breaking mechanism, wherein:

[0010] The low-temperature drying mechanism includes a low-temperature drying box, wherein first synchronous wheels are rotatably provided on both sides of the top of the inner wall of the low-temperature drying box, and the outer walls of the two first synchronous wheels are driven by a first synchronous filter belt; second synchronous wheels are rotatably provided on both sides of the bottom of the inner wall of the low-temperature drying box, and the outer walls of the two second synchronous wheels are driven by a second synchronous filter belt;

[0011] The auxiliary drying mechanism includes a plurality of flow plates fixed on the inner wall of the low-temperature drying box, a flow groove is opened in the middle position of the plurality of flow plates, the two ends of the plurality of flow grooves are connected in sequence through a plurality of flow tubes, the top ends of the plurality of flow plates are in contact with one side of the second synchronous filter belt, a plurality of auxiliary pressure rollers are provided for rotation inside the low-temperature drying box, one end of the plurality of auxiliary pressure rollers and one side of one of the first synchronous wheels are fixed with linkage gears passing through the low-temperature drying box, the outer walls of the plurality of linkage gears are connected by a plurality of linkage tooth chains, and the bottom ends of the plurality of auxiliary pressure rollers are in contact with the surface of the second synchronous filter belt.

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

[0013] Preferably, one end of one of the first synchronous wheels and one end of one of the second synchronous wheels are both passed through the low-temperature drying box and fixed with a first positioning gear, the tooth surfaces of the two first positioning gears are meshed with a second positioning gear, and the tooth surfaces of the two second positioning gears are meshed with each other, and 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 wheels.

[0014] Preferably, one end of the top of the low-temperature drying box is connected to a feed port, a discharge trough is provided on one side of the low-temperature drying box, and a collection box is connected to one side of the low-temperature drying box through the discharge trough. A conveying auger is rotatably provided at the bottom end of the collection box, a reduction motor is fixedly provided on one side of the collection box, 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 collecting box, a first cleaning brush is fixedly provided on one side of the guide plate, and one side of the first cleaning brush contacts the outer wall of the second synchronous filter belt.

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

[0017] Preferably, the continuous disintegrating mechanism includes a connecting shaft rotating inside the low-temperature drying box, one end of the connecting shaft passes through the low-temperature drying box and is fixedly connected to the middle position of one of the second positioning gears, one end of the outer wall of the connecting shaft is fixedly provided with a first positioning bevel gear, the tooth surface of the first positioning bevel gear is meshed with a second positioning bevel gear, the middle position of the second positioning bevel gear is fixedly provided with a fixed shaft, the outer wall of the fixed shaft is fixedly provided with a plurality of third positioning bevel gears, the tooth surfaces of the plurality of third positioning bevel gears are all meshed with a fourth positioning bevel gear, the middle position of the low-temperature drying box is fixedly provided with a plurality of positioning frames, the top ends of the plurality of positioning frames are all rotatably provided with a plurality of control gears, the tooth surfaces of the plurality of control gears are meshed with each other, the bottom ends of the plurality of control gears are all fixed with a rotating frame through the positioning frame, the bottom ends of the plurality of rotating frames are all fixed with a plurality of stirring bars, and the bottom ends of the plurality of stirring bars are all in contact with the top end of the second synchronous filter belt.

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

[0019] Preferably, the top of the aggregate box is connected to an induced draft mechanism, and the induced draft mechanism includes an induced draft groove connected to the top of the aggregate box, a positioning shaft is rotatably provided in the middle position of the induced draft groove, and a plurality of induced draft fans are fixedly provided on the outer wall of the positioning shaft, one end of the positioning shaft passes through the induced draft groove and is fixed with a driven gear, and one end of the other second synchronous wheel passes through the low-temperature drying box and is fixed with a driving gear, the tooth surface of the driving gear is meshed with the tooth surface of the driven gear, and one end of the top of the induced draft groove is connected to the air inlet of the incinerator through an induced draft pipe.

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

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

[0022] 1. The present invention recovers and recycles the heat generated during the sludge combustion process to provide a stable and efficient low-temperature heat source for the system, while reducing energy consumption and operating costs. The auxiliary pressure roller and flow plate design ensures that the sludge is in full contact with the heat exchange surface during the drying process, transferring heat through solid contact, avoiding the diffusion of dust and odor in traditional hot air convection methods and improving thermal energy utilization efficiency. The closed 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, temperature fluctuations in the drying area are minimized, sludge is dried uniformly, and the stability and efficiency of sludge drying are ensured.

[0023] 2. By optimizing the drying process and equipment structure, the present invention reduces the amount of dust generated during the drying process. The closed circulation system and the squeezing effect of the auxiliary pressure rollers effectively reduce the breakage and flying of sludge particles, reduce the risk of dust explosions, and improve the safety of equipment operation.

[0024] 3. The present invention uses a multi-stage gear transmission system in the continuous breaking mechanism to drive the stirring bar group, achieving dynamic turning during the sludge drying process, destroying the temperature gradient on the surface of the agglomerates and controlling the temperature difference in the drying area. This mechanism causes the accumulated sludge layer to continuously displace and break up, exposing new heat transfer interfaces, and effectively solving the problem of heat transfer obstruction caused by the easy agglomeration of high-viscosity sludge;

[0025] 4. The present invention has continuous feeding and discharging functions through the transmission of the low-temperature drying mechanism, realizes the continuous treatment of sludge drying and incineration, and improves the treatment efficiency.

[0026] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

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

[0029] Figure 2 This is a schematic diagram from a second angle 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 of the distribution of the auxiliary heat pump, conveyor rack and incinerator of the present invention;

[0031] Figure 4 It is a schematic cross-sectional view of the low-temperature drying box of the present invention;

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

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

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

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

[0036] Figure 9 Schematic diagram of the transmission relationship of the auxiliary drying mechanism of the present invention;

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

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

[0039] Figure 12 Schematic diagram of the continuous breaking up mechanism of the present invention;

[0040] Figure 13 It is a partial schematic diagram of the continuous breaking up mechanism of the present invention;

[0041] Figure 14 Schematic diagram of the air induction mechanism of the present invention;

[0042] Figure 15 It is a distribution diagram of the air-inducing mechanism of the present invention.

[0043] In the figure: 1. Low-temperature drying mechanism; 101. Low-temperature drying box; 102. Feed port; 103. Discharge chute; 104. Collecting box; 105. First synchronous wheel; 106. First synchronous filter belt; 107. Filter support plate; 108. Second synchronous wheel; 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. Speed reducer; 2. Auxiliary heat pump; 3. Incinerator; 4. Protective ring; 5. Drive motor; 6. Auxiliary drying mechanism; 601. Flow plate; 602. Auxiliary pressure roller; 603. Connecting Driven gear; 604, linked gear chain; 605, connecting frame; 606, second cleaning brush; 607, flow tube; 608, connecting pipe; 609, flow trough; 7, continuous breaking up mechanism; 701, connecting shaft; 702, first positioning bevel gear; 703, second positioning bevel gear; 704, fixed shaft; 705, third positioning bevel gear; 706, fourth positioning bevel gear; 707, control gear; 708, positioning frame; 709, rotating frame; 710, stirring bar; 8, air induced mechanism; 801, driving gear; 802, driven gear; 803, positioning shaft; 804, air induced fan; 805, air induced trough; 806, air induced pipe; 9, conveying frame. DETAILED DESCRIPTION

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments 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 shall fall within the scope of protection of the present invention.

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

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

[0047] 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 a first positioning gear 112 passing through the low-temperature drying box 101. The tooth surfaces of the two first positioning gears 112 are meshed with a second positioning gear 113. The tooth surfaces of the two second positioning gears 113 are meshed 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 wheels 108.

[0048] One end of the top of the low-temperature drying box 101 is connected to the feed port 102, and a discharge chute 103 is provided on one side of the low-temperature drying box 101. One side of the low-temperature drying box 101 is connected to the collection box 104 through the discharge chute 103. A conveying auger 114 is rotatably provided at the bottom end of the collection box 104. A reduction motor 116 is fixedly provided 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 a conveying pipe 115.

[0049] A guide plate 110 is fixedly provided inside the collecting box 104 , and a first cleaning brush 111 is fixedly provided on one side of the guide plate 110 , and one side of the first cleaning brush 111 contacts the outer wall of the second synchronous filter belt 109 ;

[0050] When it is necessary to use the heat pump assisted sludge low temperature drying and incineration integrated equipment, the sludge after the strip processing is transported into the interior of the low temperature drying box 101 through the feed port 102, and the output end of the drive motor 5 fixed on one side of the low temperature drying box 101 drives one of the second synchronous wheels 108 to rotate, and the two first positioning gears 112 and the two second positioning gears 113 are meshed with each other to drive the two first synchronous wheels 105 to drive the first synchronous filter belt 106 to stably transmit, and the two second synchronous wheels 108 drive the second synchronous filter belt 109 to rotate. The sludge is steadily driven at the same speed, so that it moves back and forth once inside the low-temperature drying box 101. The sludge is finally collected by the collecting box 104 through the guidance of the guide plate 110 and the cleaning of the first cleaning brush 111 fixed on one side of the guide plate 110. The output end of the reduction motor 116 fixed on one side of the collecting box 104 drives the conveying auger 114 to rotate, so that the dried sludge is transported to the inside of the incinerator 3 along the conveying pipe 115 through the work of the conveying auger 114 for incineration, so that the sludge is continuously dried and incinerated.

[0051] The auxiliary drying mechanism 6 includes a plurality of flow plates 601 fixed to the inner wall of the low-temperature drying box 101. A flow groove 609 is provided in the middle of each of the plurality of flow plates 601. The two ends of the plurality of flow grooves 609 are sequentially connected through a plurality of flow tubes 607. The top ends of the plurality of flow plates 601 are in contact with one side of the second synchronous filter belt 109. A plurality of auxiliary pressure rollers 602 are provided for rotation inside the low-temperature drying box 101. One end of the plurality of auxiliary pressure rollers 602 and one side of one of the first synchronous wheels 105 are fixed with a linkage gear 603 passing through the low-temperature drying box 101. The outer walls of the plurality of linkage gears 603 are connected by a plurality of linkage tooth chains 604. The bottom ends of the plurality of auxiliary pressure rollers 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 a conveyor frame 9. Both ends of the multiple flow plates 601 are connected to the drainage end of the auxiliary heat pump 2 through connecting pipes 608. A protective ring 4 is fixedly installed on the outer wall of the incinerator 3.

[0053] A plurality of connecting frames 605 are fixedly provided on the inner wall of the low-temperature drying box 101. A second cleaning brush 606 is fixedly provided on one side of each of the connecting frames 605. One side of each of the second cleaning brushes 606 contacts one side of the outer wall of each of the auxiliary pressing rollers 602.

[0054] The high-temperature steam generated in the incinerator 3 is connected to the auxiliary heat pump 2 through the conveying rack 9, and is converted into an intermediate medium heat-conducting oil by the auxiliary heat pump 2. The heat-conducting oil is stably transmitted through the connecting pipe 608, the flow groove 609 and the flow pipe 607, so that the intermediate medium heat-conducting oil with a balanced temperature always flows in the flow plate 601. During the sludge drying transmission process, when the sludge falls on the top of the second synchronous filter belt 109, the second synchronous filter belt 109 drives the sludge to be transmitted, and the auxiliary pressure roller 602 inside the low-temperature drying box 101 is rotated through the linkage gear 603 and the linkage gear The meshing of the chain 604 rotates, causing the multiple auxiliary pressure rollers 602 to rotate in the opposite direction to the second synchronous filter belt 109, so that the sludge containing moisture in the middle is fully assisted in being squeezed. At this time, the sludge is fully in close contact with the flow plate 601, so that the sludge and the flow plate 601 can exchange heat. The surface of the auxiliary pressure roller 602 is cleaned by the second cleaning brush 606 fixed on one side of the connecting frame 605 to avoid sludge sticking and improve the sludge drying efficiency. This is not only beneficial to the sludge drying process, but also convenient for reducing the floor space occupied by the drying equipment.

[0055] As a specific embodiment of the present invention, the continuous disintegration mechanism 7 includes a connecting shaft 701 that rotates inside the low-temperature drying box 101. One end of the connecting shaft 701 passes through the low-temperature drying box 101 and is fixedly connected to the middle position of one of the second positioning gears 113. 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. A fixed shaft 704 is fixedly provided in the middle position of the second positioning bevel gear 703. 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 a fourth positioning bevel gear 706, a plurality of positioning frames 708 are fixedly provided in the middle position of the low-temperature drying box 101, the top ends of the plurality of positioning frames 708 are all rotatably provided with a plurality of control gears 707, the tooth surfaces of the plurality of control gears 707 are meshed with each other, the bottom ends of the plurality of control gears 707 are all passed through the positioning frames 708 and fixed with a rotating frame 709, the bottom ends of the plurality of rotating frames 709 are all fixed with a plurality of stirring bars 710, and the bottom ends of the plurality of 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 provided inside the low-temperature drying box 101, and one side of the first synchronous filter belt 106 contacts the top of the filter support plate 107;

[0057] When the second positioning gear 113 rotates, the connecting shaft 701 fixed at one end of the second positioning gear 113 drives the first positioning bevel gear 702 to rotate, and the tooth surface of the first positioning bevel gear 702 meshes with the tooth surface of the second positioning bevel gear 703, so that the second positioning bevel gear 703 drives the fixed shaft 704 to rotate, so that the tooth surfaces of the multiple third positioning bevel gears 705 fixed on the outer wall of the fixed shaft 704 respectively mesh with the tooth surfaces of the multiple fourth positioning bevel gears 706, so that the multiple fourth positioning bevel gears 706 respectively drive the multiple control gears 707 to rotate, and the multiple control gears 70 7 are meshed with each other, so that multiple control gears 707 pass through the positioning frame 708 to drive the rotating frame 709 and the stirring bar 710 to rotate. Since the bottom ends of the multiple stirring bars 710 are in contact with the surface of the second synchronous filter belt 109, the sludge squeezed on the surface of the second synchronous filter belt 109 by the auxiliary pressure roller 602 is re-broken up, so that the moisture in the middle of the sludge can be volatilized, which is beneficial to the subsequent drying process. At the same time, the stirring bar 710 at the end works to facilitate the full discharge of the sludge, avoid sludge sticking, and increase the working stability of the heat pump-assisted sludge low-temperature drying and incineration integrated equipment.

[0058] As a specific embodiment of the present invention, the top of the collection box 104 is connected to the induced draft mechanism 8, which includes an induced draft groove 805 connected to the top of the collection box 104, a positioning shaft 803 is rotatably provided in the middle position of the induced draft groove 805, and a plurality of induced draft fans 804 are fixedly provided on the outer wall of the positioning shaft 803, one end of the positioning shaft 803 passes through the induced draft groove 805 and is fixed with a driven gear 802, one end of another second synchronous wheel 108 passes through the low-temperature drying box 101 and is fixed with a driving gear 801, the tooth surface of the driving gear 801 is meshed with the tooth surface of the driven gear 802, and one end of the top of the induced draft groove 805 is connected to the air inlet of the incinerator 3 through the induced draft 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 driving gear 801 fixed on one side of the second synchronous wheel 108 rotates synchronously. The tooth surface of the driving gear 801 and the tooth surface of the driven gear 802 are meshed, and the coefficient ratio of the driving gear 801 and the driven gear 802 is used to make the driven gear 802 drive the positioning shaft 803 and the induced fan 804 to rotate rapidly, so that the gas accumulated inside the low-temperature drying box 101 and the collecting box 104 is quickly pumped into the air inlet of the incinerator 3, so that the generated gas is subjected to high-temperature incineration treatment through the incinerator 3, thereby improving the gas treatment efficiency and avoiding the release of harmful gases during drying.

[0060] As a specific embodiment of the present invention, a smart control panel is fixed on one side of the low-temperature drying box 101, and the drive motor 5 and the reduction motor 116 are electrically connected to the external power supply through the smart control panel.

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

[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 the sludge incineration process to the intermediate medium heat transfer oil through a heat exchanger. After absorbing heat, the intermediate medium rises in temperature, forming a high-temperature heat source. The temperature can be controlled at 90-95°C, which fully meets the requirements of 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 odorous 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. The heat is transferred through solid contact, preventing the spread of dust and odor, and is suitable for treating sludge with high viscosity and easy to agglomerate.

[0063] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements 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 to an auxiliary drying mechanism (6), and the top of the auxiliary drying mechanism (6) is connected to a continuous breaking mechanism (7), wherein: The low-temperature drying mechanism (1) comprises a low-temperature drying box (101), wherein first synchronous wheels (105) are rotatably provided on both sides of the top of the inner wall of the low-temperature drying box (101), and the outer walls of the two first synchronous wheels (105) are driven by a first synchronous filter belt (106), and second synchronous wheels (108) are rotatably provided on both sides of the bottom of the inner wall of the low-temperature drying box (101), and the outer walls of the two second synchronous wheels (108) are driven by a second synchronous filter belt (109); The auxiliary drying mechanism (6) includes a plurality of flow plates (601) fixed on the inner wall of the low-temperature drying box (101), a flow groove (609) is opened in the middle position of the plurality of flow plates (601), the two ends of the plurality of flow grooves (609) are connected in sequence through a plurality of flow tubes (607), the top ends of the plurality of flow plates (601) are in contact with one side of the second synchronous filter belt (109), a plurality of auxiliary pressure rollers (602) are provided for rotation inside the low-temperature drying box (101), one end of the plurality of auxiliary pressure rollers (602) and one side of one of the first synchronous wheels (105) are fixed with a linkage gear (603) passing through the low-temperature drying box (101), the outer walls of the plurality of linkage gears (603) are connected by a plurality of linkage tooth chains (604), and the bottom ends of the plurality of auxiliary pressure rollers (602) are in contact with the surface of the second synchronous filter belt (109).

2. The heat pump-assisted sludge low-temperature drying and incineration integrated equipment according to claim 1, characterized in that: An auxiliary heat pump (2) is fixedly provided 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 a conveying frame (9), both ends of the plurality of flow plates (601) are connected to the drainage end of the auxiliary heat pump (2) through connecting pipes (608), and a protective ring (4) is fixedly provided on the outer wall of the incinerator (3).

3. The heat pump-assisted sludge low-temperature drying and incineration integrated equipment 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 passed through the low-temperature drying box (101) and fixedly provided with a first positioning gear (112); 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) are meshed with each other; a driving motor (5) is fixedly provided on one side of the low-temperature drying box (101); and the output end of the driving motor (5) is fixedly connected to the other end of one of the second synchronous wheels (108).

4. The heat pump-assisted sludge low-temperature drying and incineration integrated equipment according to claim 3, characterized in that: One end of the top of the low-temperature drying box (101) is connected to a feed port (102), a discharge trough (103) is provided on one side of the low-temperature drying box (101), and a collection box (104) is connected to one side of the low-temperature drying box (101) through the discharge trough (103). A conveying auger (114) is rotatably provided at the bottom end of the collection box (104), a reduction motor (116) is fixedly provided on one side of the collection box (104), an output end of the reduction motor (116) is fixedly connected to one end of the conveying auger (114), and one end of the bottom of the collection box (104) is connected to the feed end of the incinerator (3) through a conveying pipe (115).

5. The heat pump-assisted sludge low-temperature drying and incineration integrated equipment according to claim 4, characterized in that: A guide plate (110) is fixedly provided inside the collecting box (104), a first cleaning brush (111) is fixedly provided on one side of the guide plate (110), and one side of the first cleaning brush (111) contacts the outer wall of the second synchronous filter belt (109).

6. The heat pump-assisted sludge low-temperature drying and incineration integrated equipment according to claim 1, characterized in that: A plurality of connecting frames (605) are fixedly provided on the inner wall of the low-temperature drying box (101), a second cleaning brush (606) is fixedly provided on one side of each of the connecting frames (605), and one side of each of the second cleaning brushes (606) is in contact with one side of the outer wall of each of the auxiliary pressure rollers (602).

7. The heat pump-assisted sludge low-temperature drying and incineration integrated equipment according to claim 1, characterized in that: The continuous dispersing mechanism (7) includes a connecting shaft (701) that rotates inside the low-temperature drying box (101), one end of the connecting shaft (701) passes through the low-temperature drying box (101) and is fixedly connected to the middle position of one of the second positioning gears (113), 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), a fixed shaft (704) is fixedly provided at the middle position of the second positioning bevel gear (703), and a plurality of third positioning bevel gears (705) are fixedly provided on the outer wall of the fixed shaft (704), and the plurality of third positioning bevel gears (705) are fixedly provided. The tooth surfaces of the third positioning bevel gear (705) are all meshed with the fourth positioning bevel gear (706), and a plurality of positioning frames (708) are fixedly provided at the middle position of the low-temperature drying box (101), and the top ends of the plurality of positioning frames (708) are all rotatably provided with a plurality of control gears (707), and the tooth surfaces of the plurality of control gears (707) are meshed with each other, and the bottom ends of the plurality of control gears (707) are all fixed with a rotating frame (709) through the positioning frame (708), and the bottom ends of the plurality of rotating frames (709) are all fixed with a plurality of stirring bars (710), and the bottom ends of the plurality of stirring bars (710) are all in contact with the top end of the second synchronous filter belt (109).

8. The heat pump-assisted sludge low-temperature drying and incineration integrated equipment according to claim 1, characterized in that: A filter support plate (107) is fixedly provided 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).

9. The heat pump-assisted sludge low-temperature drying and incineration integrated equipment according to claim 4, characterized in that: The top of the material collecting box (104) is connected to an air induction mechanism (8), and the air induction mechanism (8) includes an air induction groove (805) connected to the top of the material collecting box (104). A positioning shaft (803) is rotatably provided in the middle position of the air induction groove (805), and a plurality of air induction 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 induction groove (805) and is fixed with a driven gear (802). Another end of the second synchronous wheel (108) passes through the low-temperature drying box (101) and is fixed with a driving gear (801). The tooth surface of the driving gear (801) is meshed with the tooth surface of the driven gear (802). One end of the top of the air induction groove (805) is connected to the air inlet of the incinerator (3) through an air induction pipe (806).

10. The heat pump-assisted sludge low-temperature drying and incineration integrated equipment according to claim 4, characterized in that: An intelligent control panel is fixedly provided on one side of the low-temperature drying box (101), and the driving motor (5) and the reduction motor (116) are both electrically connected to an external power supply via the intelligent control panel.

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