Waste pyrolysis device
By adopting a combination design of pyrolysis drum and spiral blades in the waste pyrolysis device, the automatic recycling of solid particles and continuous conveying of waste are realized, solving the problems of solid particle blockage and uneven discharge, improving the stability of the equipment and the resource utilization rate, and ensuring the full pyrolysis of waste and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-07
AI Technical Summary
Existing waste pyrolysis devices produce gases containing solid particles during the pyrolysis process, which causes sludge to accumulate in the horizontal discharge pipe, easily leading to blockages. Furthermore, traditional discharge methods suffer from problems such as material blockage and leakage, affecting equipment stability and resource utilization.
The system employs a pyrolysis drum design within a heating furnace, combined with spiral blades and a motor drive, to achieve automatic recycling and cyclic processing of solid particles. The spiral blades return the deposited particles back into the pyrolysis drum, and spiral blades on the inner wall of the drum drive the continuous conveying of waste materials. The enclosed structure enhances the system's sealing and safety.
It effectively reduces equipment blockage, improves the sufficiency of waste pyrolysis and resource utilization, enhances the stability and safety of the equipment, ensures uniform heating and reaction of materials in the pyrolysis zone, and improves product quality.
Smart Images
Figure CN224091821U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to waste treatment device technical field, concretely relates to a waste pyrolysis device. BACKGROUND
[0002] The waste pyrolysis device is an environmental protection equipment for treating organic waste (such as plastic, rubber, biomass, oil sludge, medical waste, etc.) by high-temperature pyrolysis technology. Its core principle is to heat the waste to a certain temperature (usually 300~800℃) in anoxic or anaerobic environment, so that the organic matter decomposes to generate recyclable fuel gas (such as methane, hydrogen), liquid oil (pyrolysis oil) and solid carbon (coke), and reduce pollutant emissions.
[0003] The Chinese patent with the application number 2015203430675 discloses a continuous waste pyrolysis device containing glue. It includes a pyrolysis furnace body, a pushing mechanism, a feeding mechanism, a buffer mechanism, a heat preservation box and a high-temperature decomposition gas discharge pipe. The pyrolysis furnace body is horizontally arranged, and the middle part of the pyrolysis furnace body is inserted into the heat preservation box. The pushing mechanism is installed at one end of the pyrolysis furnace body. The feeding mechanism is installed on the upper surface of the other end of the pyrolysis furnace body. The buffer mechanism is installed on the lower surface of the other end of the pyrolysis furnace body. The high-temperature decomposition gas discharge pipe is vertically inserted into the upper surface of the other end of the pyrolysis furnace body, and the high-temperature decomposition gas discharge pipe is in communication with the pyrolysis furnace body.
[0004] The above-mentioned scheme has the advantages of continuous operation and accelerated production process, but the gas produced in the thermal decomposition process contains a certain amount of solid particles. When complex macromolecules and organic polymers (such as plastic, rubber, resin, etc.) are thermally decomposed, carbon black, tar-like substances and high molecular fragment particles may be generated. Directly using a vertical discharge pipe will cause these solid particles to enter the collection device directly with the gas. Therefore, some devices currently install a horizontally arranged discharge pipe. The gas produced by the thermal decomposition of organic matter carries particles through the horizontal pipeline and then enters the vertical discharge pipe. In this process, the particles have enough time to naturally sink under the influence of gravity, especially larger and denser particles. However, this will also cause the horizontal discharge pipe to accumulate particle sediments, which is prone to blockage later. UTILITY MODEL CONTENTS
[0005] In order to solve the above problems, the utility model provides a waste pyrolysis device, including heating furnace, the inside rotation of heating furnace is equipped with pyrolysis drum, the both ends of pyrolysis drum extend outward and the both ends of pyrolysis drum are equipped with feed end and discharge end respectively, the side of feed end is connected with feeding device, the side of discharge end is equipped with discharge device, heating space is formed between heating furnace and pyrolysis drum, the outside of heating furnace is equipped with heating device, heating device is linked with heating space, the end of heating furnace is equipped with support seat, the inside of support seat is linked with discharge end, the support seat is equipped with exhaust pipe, one end of exhaust pipe extends to the inside of pyrolysis drum, the other end of exhaust pipe is equipped with first drive motor, the top of exhaust pipe is equipped with exhaust port, the inside rotation of exhaust pipe is equipped with first spiral shaft, the first spiral shaft is equipped with first spiral vane, the output of first drive motor is connected with first spiral shaft.
[0006] Preferably, the feeding device comprises a support frame, the first feeding seat and the second feeding seat are supported on the support frame, the first feeding seat and the second feeding seat are arranged adjacent to each other and are in communication with each other, the top of the first feeding seat is connected with a feeding hopper, the second feeding seat is in communication with the feed end, the end of the first feeding seat is provided with a first electric cylinder, the output end of the first electric cylinder extends into the first feeding seat and is connected with a first pushing block, the end of the second feeding seat is provided with a second electric cylinder, the output end of the second electric cylinder extends into the second feeding seat and is connected with a second pushing block, the side of the second feeding seat is provided with a third electric cylinder, the output end of the third electric cylinder extends into the second feeding seat and is connected with a third pushing block, and the third pushing block extends into the feed end.
[0007] Preferably, the outer side of the feed end is provided with a chain wheel, the side of the support frame is provided with a second drive motor, the output end of the second drive motor is connected with a transmission chain, the transmission chain is connected with the chain wheel, and the inner side wall of the pyrolysis drum is provided with a plurality of second spiral vanes.
[0008] Preferably, the heating device comprises a heating source, a circulating gas pipe and a fan, the heating source is located at the bottom of the heating furnace, the heating source is in communication with the heating space and the circulating gas pipe, one end of the circulating gas pipe is in communication with the tail end of the heating furnace, the other end of the circulating gas pipe is in communication with the air outlet end of the fan, and the air inlet end of the fan is in communication with the head end of the heating furnace.
[0009] Preferably, the discharging device comprises a discharging pipe, an end of the discharging end is located inside a supporting seat, a communication pipeline is arranged inside the supporting seat, two ends of the communication pipeline are communicated with the discharging end and the discharging pipe respectively, a second spiral shaft is rotatably arranged inside the discharging pipe, third spiral blades are arranged on the second spiral shaft, and a third driving motor is arranged at an end of the discharging pipe, and an output end of the third driving motor is connected with the second spiral shaft.
[0010] The utility model discloses the advantages are:
[0011] 1. The first driving motor drives the first spiral shaft to rotate, and then drives the spiral blade to transport the solid particles deposited in the exhaust pipe back to the pyrolysis drum, realizes the automatic recovery and cyclic treatment of particles, and improves the fullness and resource utilization rate of waste pyrolysis.
[0012] 2. In the second pushing block, the third pushing block is always in the feeding channel before the waste is sent to the pyrolysis drum entrance, forms an effective closed structure, prevents the high-temperature gas or harmful gas in the pyrolysis drum from reversing to the feeding channel, and improves the sealing and safety of the overall system.
[0013] 3. The inner wall of the pyrolysis drum is provided with a plurality of second spiral blades, which can continuously push the waste to move along the feeding end to the discharging end during the rotation of the drum, realize the continuous conveying of the material, help the waste to be heated and reacted sufficiently in the pyrolysis area, and improve the pyrolysis efficiency. At the same time, the rotation of the pyrolysis drum cooperates with the spiral propulsion function, so that the waste is constantly rolled and moved, is heated more uniformly, avoids problems such as overheating, caking or material accumulation in local areas, and improves product quality and equipment stability. BRIEF DESCRIPTION OF DRAWINGS
[0014] Fig. 1 It is the overall structure diagram of the utility model.
[0015] Fig. 2 It is the sectional structure diagram of the utility model.
[0016] Fig. 3 It is the feeding structure schematic view of the utility model.
[0017] In the figure: 1 heating furnace, 2 pyrolysis roller, 3 feeding end, 4 discharging end, 5 heating space, 6 supporting seat, 7 horizontal exhaust pipe, 8 first driving motor, 9 exhaust interface, 10 first spiral shaft, 11 first spiral blade, 12 first feeding seat, 13 second feeding seat, 14 feeding hopper, 15 first electric cylinder, 16 first pushing block, 17 second electric cylinder, 18 second pushing block, 19 third electric cylinder, 20 third pushing block, 21 chain wheel, 22 second driving motor, 23 transmission chain, 24 second spiral blade, 25 heating source, 26 circulating gas pipe, 27 fan, 28 discharging pipe, 29 connecting pipeline, 30 second spiral shaft, 31 third spiral blade, 32 third driving motor. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
[0019] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the present application in a specific orientation, structure and operation.
[0020] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication between two elements. At the same time, when an element is referred to as "fixed to" or "provided on" another element, it can be directly on another element or can exist with a middle element. When an element is referred to as "connected to" another element, it can be directly connected to another element or can exist with a middle element. When an element is referred to as "fixedly connected to" another element, it can be fixedly connected to another element by means of common fixed connection such as welding or bolt connection or adhesive connection. In general, the specific meanings of the above terms in the present application can be understood according to the specific circumstances by those skilled in the art.
[0021] Example 1, as Figs. 1-3As shown, a waste pyrolysis device includes a heating furnace 1, a pyrolysis drum 2 is rotatably arranged inside the heating furnace 1, both ends of the pyrolysis drum 2 extend outward, and a feeding end 3 and a discharging end 4 are respectively arranged at both ends of the pyrolysis drum 2, one side of the feeding end 3 is connected with a feeding device, and one side of the discharging end 4 is provided with a discharging device. The waste enters the pyrolysis drum 2 through the feeding end 3 from the feeding device, and after the pyrolysis is completed, it is discharged into the discharging device from the discharging end 4
[0022] A heating space 5 is formed between the heating furnace 1 and the pyrolysis drum 2, a heating device is arranged outside the heating furnace 1 and communicates with the heating space 5. The heating device heats the air in the heating space 5, and the heat is transferred to the inside of the pyrolysis drum 2, so that the waste is pyrolyzed. The end of the heating furnace 1 is provided with a support seat 6, the inside of the support seat 6 communicates with the discharging end 4, and the outside of the discharging end 4 is rotatably connected with the support seat 6 through a bearing.
[0023] A horizontal exhaust pipe 7 is arranged on the support seat 6, one end of the horizontal exhaust pipe 7 extends into the pyrolysis drum 2, the other end of the horizontal exhaust pipe 7 is provided with a first driving motor 8, an exhaust port 9 is arranged above the horizontal exhaust pipe 7, a first spiral shaft 10 is rotatably arranged in the inside of the horizontal exhaust pipe 7, a first spiral blade 11 is arranged on the first spiral shaft 10, and the output end of the first driving motor 8 is connected with the first spiral shaft 10.
[0024] When the waste in the pyrolysis drum 2 is pyrolyzed, the gas containing solid particles generated is discharged from the corresponding pipe opening after passing through the horizontal exhaust pipe 7. Compared with the conventional technology of making the solid particles contained in the gas have enough time to naturally sink under the action of gravity by lengthening the pipeline, especially the larger and higher-density particles, the structure of the horizontal exhaust pipe 7 is used to make the gas containing particles generated in the pyrolysis process flow through the horizontal exhaust pipe 7, and the larger or higher-density particles can naturally settle under the action of gravity, thereby effectively reducing the situation that the solid particles are discharged with the gas, and avoiding the blockage and wear of the subsequent equipment. The exhaust port 9 is usually connected with a vertical pipeline, and part of the solid particles in the gas will also fall into the horizontal exhaust pipe 7 under the action of gravity when the gas passes through the vertical pipeline.
[0025] After the solid particles in the gas gradually sink and fall into the horizontal exhaust pipe 7, the first driving motor 8 is started to drive the first spiral shaft 10 to rotate, so that the first spiral blade 11 drives the particles accumulated in the horizontal exhaust pipe 7 to return to the pyrolysis drum 2. The automatic recovery and recycling of the particles can be realized, the completeness of the waste pyrolysis and the resource utilization rate are improved, the conveying and recycling process of the solid particles is automatically completed by the spiral conveying structure, the work of manually cleaning the deposited particles is avoided, the operation and maintenance cost is reduced, and the continuity and stability of the equipment operation are improved.
[0026] In combinationFig. 3 In the present scheme, the feeding device comprises a support frame, the support frame is provided with a first feeding seat 12 and a second feeding seat 13, the first feeding seat 12 and the second feeding seat 13 are arranged adjacent to each other and are in communication with each other, the top of the first feeding seat 12 is connected with a feeding hopper 14, and the second feeding seat 13 is in communication with the feeding end 3. One side of the second feeding seat 13 is provided with a connector, the inner side of the connector is connected with the outer side of the feeding end 3 through a bearing, and the second feeding seat 13 is in communication with the inside of the feeding end 3 through the connector. The end of the first feeding seat 12 is provided with a first electric cylinder 15, the output end of the first electric cylinder 15 extends to the inside of the first feeding seat 12 and is connected with a first pushing block 16, the end of the second feeding seat 13 is provided with a second electric cylinder 17, the output end of the second electric cylinder 17 extends to the inside of the second feeding seat 13 and is connected with a second pushing block 18, the side of the second feeding seat 13 is provided with a third electric cylinder 19, the output end of the third electric cylinder 19 extends to the inside of the second feeding seat 13 and is connected with a third pushing block 20, and the third pushing block 20 extends to the inside of the feeding end 3. The waste is first fed into the first feeding seat through the feeding hopper 14, the first pushing block 16 is driven by the first electric cylinder 15 to push the waste into the inside of the second feeding seat 13, then the second pushing block 18 is driven by the second electric cylinder 17 to push the waste from one end of the inside of the second feeding seat 13 to the position where the second feeding seat 13 is in communication with the feeding end 3, and finally the third pushing block 20 is driven by the third electric cylinder 19 to push the waste into the pyrolysis drum 2. Before the second pushing block 18 pushes the waste from one end of the inside of the second feeding seat 13 to the position where the second feeding seat 13 is in communication with the feeding end 3, the third pushing block 20 is always in the through hole in the inside of the feeding end 3, so that the feeding end 3 is in a closed state. Only when the waste enters the second feeding seat 13 from the first feeding seat 12, the feeding end 3 is in an open state.
[0027] The device realizes continuous, accurate and buffer pushing of the waste from feeding to feeding into the pyrolysis drum 2 through three groups of electric cylinders respectively controlling three pushing blocks to push in sections, effectively avoiding problems such as blockage. Before the second pushing block 18 feeds the waste to the inlet of the pyrolysis drum 2, the third pushing block 20 is always in the feeding channel, forming an effective closed structure to prevent high-temperature gas or harmful gas in the pyrolysis drum 2 from flowing back to the feeding channel, and improving the sealing performance and safety of the whole system.
[0028] The outer side of the feeding end is provided with a chain wheel 21, the side edge of the supporting frame is provided with a second driving motor 22, the output end of the second driving motor 22 is connected with a transmission chain 23, the transmission chain 23 is connected with the chain wheel 21, and the inner side wall of the pyrolysis roller 2 is provided with a plurality of second spiral blades 24. The second driving motor 22 drives the chain wheel 21 and the feeding end to rotate through the transmission chain 23, so that the rotation of the pyrolysis roller 2 is realized. The dry second spiral blade 24 in the pyrolysis roller 2 drives the waste to move from the feeding end 3 to the discharging end 4. The inner wall of the pyrolysis roller 2 is provided with a plurality of second spiral blades 24, which can continuously push the waste to move from the feeding end 3 to the discharging end 4 during the rotation of the roller, realize the continuous conveying of the material, help the waste to be heated and reacted sufficiently in the pyrolysis area, and improve the pyrolysis efficiency. The rotation of the pyrolysis roller 2 cooperates with the spiral propulsion function, so that the waste is constantly rolled and moved, the heating is more uniform, and problems such as overheating, caking or material accumulation in local areas are avoided, so that the product quality and equipment stability are improved.
[0029] The heating device comprises a heating source 25, a circulating air pipe 26 and a fan 27. The heating source 25 is located at the bottom of the heating furnace 1 and is in communication with the heating space 5 and the circulating air pipe 26. One end of the circulating air pipe 26 is in communication with the tail end of the heating furnace 1, and the other end of the circulating air pipe 26 is in communication with the air outlet end of the fan 27. The air inlet end of the fan 27 is in communication with the head end of the heating furnace 1. The heating source 25 can be selected from commonly used heating structures such as electric heating pipes, burners or infrared heaters, and the type of heat source can be configured according to actual needs. The heating source 25 heats the air at the bottom of the heating furnace 1 to enter the heating space 5, and the fan 27 makes the air in the heating space 5 circulate and diffuse heat through the circulating air pipe 26. The fan 27 and the circulating air pipe 26 form a closed hot air loop, so that the heated air is continuously recycled, significantly reducing heat loss. The passive heat loss to the external environment in the traditional system is avoided, and the energy-saving effect is obvious. The hot air is forced to circulate in an organized manner under the driving of the fan 27, the heat is uniformly diffused in the heating space 5, and the temperature difference and hot field dead angle are effectively eliminated. The heated air of the heating source 25 also directly enters the circulating air pipe 26, thereby accelerating heat diffusion.
[0030] In combination Fig. 2The discharging device comprises a discharging pipe 28, the end of the discharging end 4 is located inside the support seat 6, the inside of the support seat 6 is provided with a communication pipeline 29, the two ends of the communication pipeline 29 are communicated with the discharging end 4 and the discharging pipe 28 respectively, the inside of the discharging pipe 28 is rotatably provided with a second spiral shaft 30, the second spiral shaft 30 is provided with third spiral blades 31, the end of the discharging pipe 28 is provided with a third driving motor 32, and the output end of the third driving motor 32 is connected with the second spiral shaft 30. The material of the discharging end 4 firstly enters the inside of the support seat 6, and then is transferred to the discharging pipe 28 through the communication pipeline 29 arranged therein, the inside of the discharging pipe 28 is provided with the second spiral shaft 30, the shaft is rotated under the driving of the third driving motor 32, so as to continuously push the third spiral blades 31 on the shaft to advance the waste after thermal decomposition, so that the waste is discharged outward. The scheme effectively avoids the problems of blockage, leakage, uneven conveying and the like existing in the traditional discharging mode.
[0031] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A waste pyrolysis device, characterized in that: The device includes a heating furnace (1), with a pyrolysis drum (2) rotatably mounted on the inner side of the heating furnace (1). The two ends of the pyrolysis drum (2) extend outward and are respectively provided with a feed end (3) and a discharge end (4). A feeding device is connected to one side of the feed end (3), and a discharge device is provided on one side of the discharge end (4). A heating space (5) is formed between the heating furnace (1) and the pyrolysis drum (2). A heating device is provided on the outer side of the heating furnace (1) and is connected to the heating space (5). A support base (6) is provided at the end of the heating furnace (1). The interior of the support base (6) is connected to the discharge end (4). A horizontal exhaust pipe (7) is provided on the support base (6). One end of the horizontal exhaust pipe (7) extends into the interior of the pyrolysis drum (2). A first drive motor (8) is provided at the other end of the horizontal exhaust pipe (7). An exhaust port (9) is provided above the horizontal exhaust pipe (7). A first spiral shaft (10) is rotatably provided inside the horizontal exhaust pipe (7). A first spiral blade (11) is provided on the first spiral shaft (10). The output end of the first drive motor (8) is connected to the first spiral shaft (10).
2. The waste pyrolysis apparatus according to claim 1, characterized in that: The feeding device includes a support frame, on which a first feeding seat (12) and a second feeding seat (13) are supported. The first feeding seat (12) and the second feeding seat (13) are arranged adjacent to each other and are interconnected. A feeding funnel (14) is connected to the top of the first feeding seat (12). The second feeding seat (13) is connected to the feeding end (3). A first electric cylinder (15) is provided at the end of the first feeding seat (12). The output end of the first electric cylinder (15) extends into the interior of the first feeding seat (12) and... A first pusher block (16) is connected to the second feed seat (13). A second electric cylinder (17) is provided at the end of the second feed seat (13). The output end of the second electric cylinder (17) extends into the interior of the second feed seat (13) and is connected to the second pusher block (18). A third electric cylinder (19) is provided on the side of the second feed seat (13). The output end of the third electric cylinder (19) extends into the interior of the second feed seat (13) and is connected to the third pusher block (20). The third pusher block (20) extends into the interior of the feed end (3).
3. The waste pyrolysis apparatus according to claim 2, characterized in that: A sprocket (21) is provided on the outer side of the feed end (3), a second drive motor (22) is provided on the side of the support frame, and a transmission chain (23) is connected to the output end of the second drive motor (22). The transmission chain (23) is connected to the sprocket (21), and a number of second spiral blades (24) are provided on the inner side wall of the pyrolysis drum (2).
4. The waste pyrolysis apparatus according to claim 3, characterized in that: The heating device includes a heating source (25), a circulating air pipe (26) and a fan (27). The heating source (25) is located at the bottom of the heating furnace (1) and is connected to the heating space (5) and the circulating air pipe (26). One end of the circulating air pipe (26) is connected to the tail end of the heating furnace (1), and the other end of the circulating air pipe (26) is connected to the air outlet of the fan (27). The air inlet of the fan (27) is connected to the head end of the heating furnace (1).
5. The waste pyrolysis apparatus according to claim 4, characterized in that: The discharge device includes a discharge pipe (28), the end of the discharge end (4) is located inside the support base (6), the support base (6) is provided with a connecting pipe (29), the two ends of the connecting pipe (29) are respectively connected to the discharge end (4) and the discharge pipe (28), the discharge pipe (28) is provided with a second spiral shaft (30) inside, the second spiral shaft (30) is provided with a third spiral blade (31), the end of the discharge pipe (28) is provided with a third drive motor (32), and the output end of the third drive motor (32) is connected to the second spiral shaft (30).