Thermal decomposition furnace for waste treatment
By using a feeding method that combines a feeding box and feeding components, along with the design of a crushing roller and a stirring shaft, the high-temperature problem at the feeding interface of the pyrolysis furnace is solved, enabling continuous feeding and uniform decomposition, thereby improving processing efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-03-27
AI Technical Summary
Existing pyrolysis furnaces cannot continuously feed materials under high-temperature conditions at the feed interface, resulting in low processing efficiency, and the cooling device affects the decomposition rate.
The feeding method uses a combination of a feeding box and a feeding assembly, along with a crushing roller and a stirring shaft design, to achieve continuous feeding and uniform decomposition.
It achieves efficient continuous feeding, improves waste treatment efficiency and decomposition uniformity, and enhances product quality and equipment stability.
Smart Images
Figure CN224050378U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of decomposition furnace, specifically relates to a waste heat decomposition furnace for waste treatment. BACKGROUND
[0002] The heat decomposition furnace is a kind of equipment for treating waste by high-temperature pyrolysis reaction, and its core principle lies in decomposing organic matter in waste into combustible gas, bio-oil and solid residue by high temperature (usually 400-900 DEG C), to realize reduction and resource utilization.
[0003] The Chinese patent with the application number 2005200329570 discloses a solid waste controllable oxygen thermal decomposition furnace belonging to environmental protection equipment, which aims at the problems of less pyrolysis gas generated by existing pyrolysis furnace, safety hazard in use, and more waste residue, proposes to strictly control the air amount entering the pyrolysis furnace, adopts oxygen control smoldering, relies on heat to decompose waste, and specially sets ignition channel and bell jar type water seal safety valve; adopts solid-liquid slag separation and slag discharge solution.
[0004] The above scheme has the advantages of safe operation and less energy consumption. However, when the waste is put into the decomposition furnace through the feeding interface, the feeding interface is often in a high-temperature environment, so the feeding interface often causes artificial continuous feeding due to high temperature, thereby affecting the treatment efficiency of the whole waste. Although the existing feeding interface can be cooled by setting a cooling device, the local temperature in the furnace body is lowered, thereby affecting the decomposition rate. UTILITY MODEL CONTENTS
[0005] To solve the above problems, the utility model provides a waste heat decomposition furnace for waste treatment, which comprises a furnace body and a base, the furnace body is fixed on the base, a heating cavity is arranged in the furnace body, heating pipes are arranged around the side wall of the furnace body, a feeding pipe is arranged on the side of the furnace body, the heating cavity in the furnace body is communicated with the feeding pipe, a pushing box is communicated with the side of the feeding pipe away from the furnace body, a feeding hopper is arranged on the top of the pushing box, a first pushing assembly is arranged on one end of the pushing box, a second pushing assembly is arranged on one end of the feeding pipe, and the pushing direction of the first pushing assembly is perpendicular to the pushing direction of the second pushing assembly.
[0006] Preferably, the first pushing assembly comprises a first electric cylinder arranged at the end of the pushing box, the output end of the first electric cylinder is connected with a first push rod, the first push rod extends into the pushing box and is connected with a first push block, the front end of the first push block is provided with an arc-shaped groove, the second pushing assembly comprises a second electric cylinder arranged at the end of the feeding pipe, the output end of the second electric cylinder is connected with a second push rod, and the second push rod extends into the feeding pipe and is connected with a second push block.
[0007] Preferably, the bottom of the feeding hopper is rotatably provided with a first crushing roller and a second crushing roller, the bottom side of the feeding hopper is provided with a first driving motor and a second driving motor, the output end of the first driving motor is connected with the first crushing roller, the output end of the second driving motor is connected with the second crushing roller, the first crushing roller is provided with a plurality of first crushing blades, and the second crushing roller is provided with a plurality of second crushing blades.
[0008] Preferably, the inside of the furnace body is rotatably provided with a stirring shaft, the stirring shaft is provided with a stirring rod, the end of the stirring rod is connected with stirring blades, the outside of the furnace body is provided with a support plate, the support plate is provided with a third driving motor, one end of the stirring shaft protrudes outward through the furnace body, and a transmission belt is connected between the outward protruding part of the stirring shaft and the output end of the third driving motor.
[0009] Preferably, the upper portion of the furnace body is provided with an observation window.
[0010] The utility model discloses the advantages are:
[0011] 1. The scheme can realize continuous feeding by setting the feeding mode of the mutual cooperation of the material pushing box, the first material pushing assembly and the second material pushing assembly, avoids manual feeding at the high-temperature feeding interface, does not need a cooling device, can effectively solve the problem that continuous feeding cannot be realized due to the high temperature of the feeding interface, and improves waste treatment efficiency.
[0012] 2. In the scheme, waste material is first subjected to crushing treatment by the first crushing roller and the second crushing roller before entering the heating cavity of the thermal decomposition furnace. By the staggered arrangement of the first crushing blades and the second crushing blades, the waste material can be effectively cut and crushed, and the larger waste material is crushed into smaller particles. In this way, the surface area of the waste material can be increased, so that it can be more fully contacted with the heat provided by the heating pipe in the subsequent thermal decomposition process, the speed of the thermal decomposition reaction is accelerated, and the efficiency of the waste treatment is improved.
[0013] 3. In the scheme, the decomposition process of the waste material in the furnace body is more uniform through stirring. This helps to reduce the product quality difference caused by uneven decomposition and improve the overall quality of the product. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is the overall structure diagram of the utility model.
[0015] Figure 2 It is the sectional structure diagram of the material pushing box of the utility model.
[0016] Figure 3 It is the structure diagram of the first crushing roller and the second crushing roller of the utility model.
[0017] Figure 4 It is a cross section schematic view of the furnace body and the feeding pipe.
[0018] In the figure: 1 furnace body, 2 base, 3 heating cavity, 4 heating pipe, 5 feeding pipe, 6 pushing box, 7 feeding hopper, 8 first electric cylinder, 9 first pushing rod, 10 first pushing block, 11 arc-shaped groove, 12 second electric cylinder, 13 second pushing rod, 14 second pushing block, 15 first crushing roller, 16 second crushing roller, 17 first driving motor, 18 second driving motor, 19 first crushing blade, 20 second crushing blade, 21 stirring shaft, 22 stirring rod, 23 stirring blade, 24 supporting plate, 25 third driving motor, 26 transmission belt, 27 observation window. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the present application will be clearly and completely described in the description of the embodiments of the present application in combination with the drawings.
[0020] In the description of the present application, it should be explained that the directions or position relations indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "another end" and the like are the directions or position relations 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 the limitation on the present application that the indicated devices or elements must have the specific directions, be constructed and operated in the specific directions.
[0021] In the description of the present application, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood in a broad sense, for example, "connection" can be fixed connection, can be detachable connection, or integrally connected; can be mechanical connection, can be electrical connection; can be directly connected, can be indirectly connected through intermediate medium, or can be the communication inside two elements. Meanwhile, 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 modes such as welding or bolt connection or glue 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.
[0022] Example 1, as Figure 1 , Figure 2 and Figure 4As shown, a waste treatment thermal decomposition furnace, furnace body 1 is fixed on the base 2, the furnace body 1 inside is equipped with heating cavity 3, the side wall of furnace body 1 is equipped with heating pipe 4 around, through heating pipe 4 to heat waste material in heating cavity 3, this heating mode temperature controllable and no combustion pollutants. The outer part of the side wall of the furnace body 1 is also provided with heat insulation material to avoid heat dissipation. The side of the furnace body 1 is provided with a feeding pipe 5, the heating cavity 3 inside the furnace body 1 is communicated with the feeding pipe 5, the waste material enters the heating cavity 3 from the feeding pipe 5. The bottom of the furnace body 1 is provided with a discharge port penetrating through the base 2, the upper part of the furnace body 1 is provided with an observation window 27, the observation window 27 is made of suitable high temperature and high pressure resistant material, such as quartz glass or aluminum borosilicate glass. The operator can directly observe the heating condition in the furnace, the material state and so on through the observation window 27, find out the problem in time and adjust.
[0023] The side of the feeding pipe 5 away from the furnace body 1 is communicated with a pushing box 6, the top of the pushing box 6 is provided with a feeding hopper 7, one end of the pushing box 6 is provided with a first pushing assembly, one end of the feeding pipe 5 is provided with a second pushing assembly, the pushing direction of the first pushing assembly is perpendicular to the pushing direction of the second pushing assembly. The first pushing assembly includes a first electric cylinder 8 arranged at the end of the pushing box 6, the output end of the first electric cylinder 8 is connected with a first push rod 9, the first push rod 9 extends into the pushing box 6 and is connected with a first push block 10, the front end of the first push block 10 is provided with an arc slot 11. The second pushing assembly includes a second electric cylinder 12 arranged at the end of the feeding pipe 5, the output end of the second electric cylinder 12 is connected with a second push rod 13, the second push rod 13 extends into the feeding pipe 5 and is connected with a second push block 14. The first push block 10 is a square structure as a whole, the second push rod 13 is a column structure as a whole. The cross section of the arc slot 11 at the front end of the first push block 10 is a semicircular structure, the diameter of which is the same as the diameter of the feeding pipe 5, when the first push block 10 is pushed to the limit position, the arc slot 11 will not affect the movement of the second push block 14 in the feeding pipe 5.
[0024] After the waste material enters from the feeding hopper 7, it gradually fills the area below the feeding hopper 7 in the pushing box 6, in this process, the second push rod 13 is in an elongated state, and the second push block 14 is located near the furnace body 1 in the feeding pipe 5, so that the feeding pipe 5 is in a closed state, and the heat in the heating cavity 3 will not dissipate from the feeding pipe 5. When the waste material gradually fills the bottom area of the feeding hopper 7, the second push rod 13 is retracted, and the feeding pipe 5 is in a nearly fully open state. At this time, the first electric cylinder 8 drives the first push rod 9 and the first push block 10 to push the waste material into the feeding pipe 5, and because the waste material is accumulated in the bottom area of the feeding hopper 7 and the waste material is collected into the feeding pipe 5 under the push of the first push block 10, the heat in the heating cavity 3 is blocked again. The high temperature in the furnace body 1 will not affect the feeding process.
[0025] Finally, the second push rod 13 and the second push block 14 driven by the second electric cylinder 12 push the waste material into the heating cavity 3. During this process, the first push rod 9 and the first push block 10 are reset, the feeding hopper 7 continues to feed, and the above steps are repeated. Through the cooperation of the first push assembly and the second push assembly, the waste material is orderly fed, and the high temperature in the furnace body 1 does not affect the feeding during the entire feeding process, avoiding the heat in the heating cavity 3 from being dissipated outside the feeding pipe 5, which helps to maintain the high temperature environment in the furnace body 1 and ensures the efficient performance of the thermal decomposition reaction.
[0026] In combination Figure 3 The bottom of the feeding hopper 7 is rotatably provided with a first crushing roller 15 and a second crushing roller 16, and the side edge of the bottom of the feeding hopper 7 is provided with a first driving motor 17 and a second driving motor 18. The output end of the first driving motor 17 is connected with the first crushing roller 15, and the output end of the second driving motor 18 is connected with the second crushing roller 16. A plurality of first crushing blades 19 are arranged on the first crushing roller 15, and a plurality of second crushing blades 20 are arranged on the second crushing roller 16. The first crushing blades 19 and the second crushing blades 20 are arranged alternately. Before the waste material enters the heating cavity 3 of the thermal decomposition furnace, it is first subjected to crushing treatment by the first crushing roller 15 and the second crushing roller 16. Through the alternate arrangement of the first crushing blades 19 and the second crushing blades 20, the waste material can be effectively cut and crushed, and the larger waste material can be crushed into smaller particles. In this way, the surface area of the waste material can be increased, so that it can be more fully contacted with the heat provided by the heating pipe 4 in the subsequent thermal decomposition process, the speed of the thermal decomposition reaction can be accelerated, and the efficiency of the waste treatment can be improved. At the same time, the size of the crushed waste material particles is relatively uniform, and when pushed into the heating cavity 3 by the first push assembly and the second push assembly, it can be more uniformly distributed in the heating cavity 3. This helps to ensure that the temperature and reaction conditions of each part of the thermal decomposition furnace are relatively uniform, avoiding the occurrence of local overheating or overcooling, thereby improving the effect of thermal decomposition and product quality. Finally, the waste material particles after crushing treatment are smaller, which can more easily and smoothly pass through the feeding pipe 5 and the push assembly, reducing the risk of equipment blockage and improving the stability and reliability of the equipment.
[0027] The inside of the furnace body 1 is rotatably provided with a stirring shaft 21, the stirring shaft 21 is provided with a stirring rod 22, the end of the stirring rod 22 is connected with a stirring blade 23, the outside of the furnace body 1 is provided with a support plate 24, the support plate 24 is provided with a third driving motor 25, one end of the stirring shaft 21 penetrates through the furnace body 1 and is outwardly protruding, and a transmission belt 26 is connected between the outwardly protruding part of the stirring shaft 21 and the output end of the third driving motor 25. The arrangement of the stirring shaft 21 and the stirring blade 23 enables the waste material in the furnace body 1 to be constantly stirred and mixed during the heating process, prevents the waste material from being locally accumulated in the furnace body 1, avoids the formation of dead angles, and the mechanical stirring action helps the waste material to be more fully contacted with the heat provided by the heating pipe 4, ensures that the material is evenly heated, thereby speeds up the speed of the thermal decomposition reaction. During the stirring process, the relative positions of the waste materials are constantly changed, which helps the heat transfer between the materials. This can avoid the situation of local overheating or overcooling, and improve the efficiency and stability of the whole thermal decomposition process.
[0028] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A pyrolysis furnace for waste treatment, characterized in that: The utility model relates to a kind of heating furnace, including furnace body (1) and pedestal (2), the furnace body (1) is fixed on pedestal (2), heating cavity (3) is equipped inside the furnace body (1), heating pipe (4) is arranged around in the side wall of furnace body (1), the side of furnace body (1) is equipped with feed pipe (5), the heating cavity (3) inside the furnace body (1) is connected with feed pipe (5), the side of feed pipe (5) away from furnace body (1) is connected with pusher box (6), the top of pusher box (6) is equipped with feed hopper (7), one end of pusher box (6) is equipped with first pusher assembly, one end of feed pipe (5) is equipped with second pusher assembly, the push direction of first pusher assembly is vertically arranged with the push direction of second pusher assembly.
2. The thermal decomposition furnace for waste treatment according to claim 1, characterized by: The first pusher assembly includes first electric cylinder (8) arranged at the end of pusher box (6), the output end of first electric cylinder (8) is connected with first push rod (9), first push rod (9) extends into pusher box (6) and is connected with first push block (10), the front end of first push block (10) is equipped with arc slot (11), the second pusher assembly includes second electric cylinder (12) arranged at the end of feed pipe (5), the output end of second electric cylinder (12) is connected with second push rod (13), second push rod (13) extends into feed pipe (5) and is connected with second push block (14).
3. The thermal decomposition furnace for waste treatment according to claim 2, characterized by: The bottom of feed hopper (7) is rotatably provided with a first crushing roller (15) and a second crushing roller (16), the bottom side of feed hopper (7) is provided with a first drive motor (17) and a second drive motor (18), the output end of first drive motor (17) is connected with first crushing roller (15), the output end of second drive motor (18) is connected with second crushing roller (16), a plurality of first crushing blades (19) are arranged on first crushing roller (15), a plurality of second crushing blades (20) are arranged on second crushing roller (16), the first crushing blades (19) and the second crushing blades (20) are arranged alternately.
4. The thermal decomposition furnace for waste treatment according to claim 3, characterized by: A stirring shaft (21) is rotatably arranged inside the furnace body (1), a stirring rod (22) is arranged on the stirring shaft (21), stirring vanes (23) are connected to the ends of the stirring rod (22), a support plate (24) is arranged outside the furnace body (1), a third drive motor (25) is arranged on the support plate (24), one end of the stirring shaft (21) protrudes outward through the furnace body (1), a transmission belt (26) is connected between the protruding part of the stirring shaft (21) and the output end of the third drive motor (25).
5. The thermal decomposition furnace for waste treatment according to claim 3, characterized by: An observation window (27) is arranged above the furnace body (1).