A novel pyrolysis furnace device
By using the bevel gear transmission and valve plate adjustment structure of the linkage exhaust mechanism, the problem of cumbersome operation of the pyrolysis furnace gas inlet opening and closing and exhaust switch is solved, realizing automatic coordination between gas inlet direction and exhaust state, and improving reaction stability and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAN JINYUAN SHENG NEW ENERGY EQUIPMENT TECHNOLOGY CO LTD
- Filing Date
- 2025-09-08
- Publication Date
- 2026-07-14
AI Technical Summary
The operation of the gas inlet opening and closing and the exhaust switch of the existing pyrolysis furnace is cumbersome and prone to delays, which leads to pressure fluctuations inside the furnace, affects the stability of the reaction and poses safety hazards.
The system employs a linkage exhaust mechanism, which uses bevel gear transmission and valve plate adjustment structure to achieve automatic coordination between the intake direction and exhaust state. The opening and closing of the linkage valve plate simplifies the operation process and stabilizes gas flow.
It achieves automatic coordination of intake opening and closing with exhaust status, reduces manual operation steps, improves the stability and safety of pyrolysis reaction, and avoids safety hazards caused by pressure fluctuations.
Smart Images

Figure CN224497690U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pyrolysis furnaces, and in particular to a novel pyrolysis furnace device. Background Technology
[0002] A pyrolysis furnace is an industrial device that processes materials through high-temperature pyrolysis reactions (using thermal energy to decompose organic matter into gaseous, liquid, and solid products in an oxygen-free or low-oxygen environment). Its core function is to transform complex organic matter into more easily utilized small molecule compounds or harmless residues. It is widely used in solid waste treatment, energy recovery, and material preparation.
[0003] As a core piece of equipment for treating solid waste and hazardous waste, the pyrolysis furnace needs to introduce flue gas or reaction gas through multi-directional air intake pipes and rely on the exhaust mechanism to achieve directional gas flow in order to ensure that the pyrolysis reaction proceeds fully.
[0004] However, the existing pyrolysis furnaces mostly operate the inlet and outlet valves independently, requiring manual control of the inlet and outlet valves respectively. When switching the inlet direction (e.g., changing from top to bottom inlet), the original inlet valve must be closed, the new inlet valve opened, and the corresponding outlet valve manually adjusted. This operation is cumbersome and prone to delays, leading to pressure fluctuations inside the furnace. This not only affects the stability of the pyrolysis reaction but may also cause safety hazards due to excessive pressure. Therefore, a new type of pyrolysis furnace device is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a novel pyrolysis furnace device, which aims to improve the problem that the gas inlet opening and closing and the gas exhaust switch of the existing pyrolysis furnace are mostly operated independently, requiring manual control of the gas inlet valve and the gas exhaust valve respectively.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a novel pyrolysis furnace device, comprising a shell, wherein air inlet pipes are fixedly connected to the upper and lower ends and the side walls of the shell, and opening and closing valves are provided on the surface of the three sets of air inlet pipes, and adjustable mounting components are provided on the surface of the air inlet pipes, and linkage exhaust mechanisms are provided on the upper and lower sides of the shell.
[0007] The linkage exhaust mechanism includes an exhaust pipe, a bevel gear a is in contact with the outer sidewall of the exhaust pipe, a bevel gear b is meshed with the surface of the bevel gear a, a connecting shaft is fixedly connected to the rotation center axis of the bevel gear b, a guide plate is rotatably connected to the inner sidewall of the exhaust pipe, a connecting block is fixedly connected to the outer arc surface of the guide plate, an arc groove is formed on the surface of the guide plate, a protruding rod is slidably connected to the inner wall of the arc groove of the guide plate, a valve plate is fixedly connected to the bottom end of the outer wall of the protruding rod, and a guide block is fixedly connected to the bottom end of the outer wall of the valve plate.
[0008] As a further description of the above technical solution:
[0009] The adjustable mounting assembly includes a connecting flange, which is fixedly connected to the end of the air intake pipe away from the housing. Multiple sets of internally threaded blocks are slidably connected to the lower surface of the connecting flange. A hinge rod is hinged to the outer sidewall of each internally threaded block. A sliding sleeve is hinged to the end of each hinge rod away from the internally threaded block. A positioning screw is threaded through and threaded to the inner sidewall of the sliding sleeve.
[0010] As a further description of the above technical solution:
[0011] The exhaust pipe is provided in two sets, and the two sets of exhaust pipes are respectively fixedly connected to the upper and lower surfaces of the housing.
[0012] As a further description of the above technical solution:
[0013] The end of the connecting shaft away from the bevel gear b is fixedly connected to the rotation center shaft of the opening and closing valve, and the end of the connecting block away from the guide plate is fixedly connected to the inner arc surface of the bevel gear a.
[0014] As a further description of the above technical solution:
[0015] The outer arc surface of the exhaust pipe is provided with a groove, and the connecting block passes through and is slidably connected to the inner wall of the exhaust pipe groove.
[0016] As a further description of the above technical solution:
[0017] A straight groove is provided at the bottom of the inner wall of the exhaust pipe, and the guide block is slidably connected to the inner wall of the straight groove of the exhaust pipe.
[0018] As a further description of the above technical solution:
[0019] The connecting flange is fixedly connected to the end of the air intake pipe away from the housing. A through groove is opened on the surface of the connecting flange, and a through internal thread groove is opened on the inner side of the internal thread block.
[0020] As a further description of the above technical solution:
[0021] The inner sidewall of the sliding sleeve is in contact with the outer arc surface of the air intake pipe, and the end of the positioning screw is in contact with the outer arc surface of the air intake pipe.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, the linkage exhaust mechanism achieves automatic coordination of the air intake direction and exhaust state through bevel gear transmission and valve plate adjustment structure: when the opening and closing valve rotates, it drives bevel gear b to mesh with bevel gear a through the connecting shaft, thereby driving the guide plate to rotate. The cooperation of the convex rod and the guide block enables multiple sets of valve plates to open and close synchronously, realizing the linkage effect of air intake opening - corresponding exhaust automatically opening, air intake closing - corresponding exhaust synchronous adjustment. No manual operation is required, and the material is decomposed to the smallest unit at a higher temperature than traditional drying towers.
[0024] 2. In this utility model, pushing the sliding sleeve can drive multiple sets of internal threaded blocks to slide synchronously in the sliding groove of the connecting flange through the hinge rod, quickly matching different hole positions of the external flue gas pipeline flange, without the need for welding adapters or separate adjustment bolts; the positioning screw fixes the position of the sliding sleeve through the self-locking of the thread to ensure stable connection. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a novel pyrolysis furnace device proposed in this utility model;
[0026] Figure 2 This is a schematic diagram of the connection state of the linkage gas outlet mechanism and the connecting shaft of a novel pyrolysis furnace device proposed in this utility model.
[0027] Figure 3 This is a schematic diagram of the bevel gear a and the gas outlet pipe in the separated state of a novel pyrolysis furnace device proposed in this utility model;
[0028] Figure 4 This is a partial cross-sectional view of the gas outlet pipe of a novel pyrolysis furnace device proposed in this utility model.
[0029] Figure 5 This is a bottom view of the valve plate structure of a novel pyrolysis furnace device proposed in this utility model;
[0030] Figure 6 This is a bottom view of the adjustable mounting components of a novel pyrolysis furnace device proposed in this utility model.
[0031] Legend:
[0032] 1. Housing; 2. Intake pipe; 3. On / off valve; 4. Adjustable mounting assembly; 41. Connecting flange; 42. Internal threaded block; 43. Hinge rod; 44. Sliding sleeve; 45. Positioning screw; 5. Linked exhaust mechanism; 51. Exhaust pipe; 52. Bevel gear a; 53. Bevel gear b; 54. Connecting block; 55. Guide plate; 56. Valve plate; 57. Protruding rod; 58. Guide block; 6. Connecting shaft. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0034] Reference Figures 1-3 This utility model provides an embodiment of a novel pyrolysis furnace device, comprising a shell 1. Air inlet pipes 2 are fixedly connected to the upper and lower ends and side walls of the shell 1. Each of the three sets of air inlet pipes 2 is equipped with an on / off valve 3. The on / off valve 3 is existing technology; its opening and closing allows external flue gas equipment to connect to an adjustable mounting component 4. The opening and closing of the on / off valve 3 allows gas to enter the interior of the shell 1 from multiple directions. The surface of the air inlet pipes 2 is equipped with an adjustable mounting component 4, and the upper and lower sides of the shell 1 are equipped with a linkage exhaust mechanism 5.
[0035] Reference Figures 2-4 The linkage exhaust mechanism 5 includes an exhaust pipe 51, which is provided in two sets. The two sets of exhaust pipes 51 are fixedly connected to the upper and lower surfaces of the housing 1 respectively. The outer sidewall of the exhaust pipe 51 contacts a bevel gear a52. The surface of the bevel gear a52 meshes with a bevel gear b53. The rotation center axis of the bevel gear b53 is fixedly connected to a connecting shaft 6. The end of the connecting shaft 6 away from the bevel gear b53 is fixedly connected to the rotation center axis of the opening and closing valve 3. The connecting shaft 6 is fixed to the rotation center axis of the bevel gear b53 so that when the opening and closing valve 3 rotates to allow the flue gas to enter from the upper intake pipe 2, it will drive the connecting shaft 6 to rotate, thereby allowing the bevel gear b53 to mesh with the exhaust pipe 51. Conversely, when the valve rotates in the opposite direction to close the current intake pipe 2, the flue gas will drive the air outlet on the same plane to open.
[0036] Reference Figures 3-5A guide plate 55 is rotatably connected to the inner side wall of the exhaust pipe 51. A cavity is formed at the center of both the exhaust pipe 51 and the guide plate 55, allowing the air outlet to be opened and closed by the sliding contact of multiple sets of valve plates 56. A connecting block 54 is fixedly connected to the outer arc surface of the guide plate 55. A groove is formed on the outer arc surface of the exhaust pipe 51, and the connecting block 54 passes through and is slidably connected to the inner wall of the groove in the exhaust pipe 51. An arc-shaped groove is formed on the surface of the guide plate 55, and a protruding rod 57 is slidably connected to the inner wall of the arc-shaped groove. A valve plate 56 is fixedly connected to the bottom end of the outer wall of the protruding rod 57, and a valve plate 56 is fixedly connected to the bottom end of the outer wall of the valve plate 56. The guide block 58 has a straight groove at the bottom of the inner wall of the exhaust pipe 51. The guide block 58 is slidably connected to the inner wall of the straight groove of the exhaust pipe 51. The end of the connecting block 54 away from the guide plate 55 is fixedly connected to the inner arc surface of the bevel gear a52. The function of the guide block 58 is to guide the movement of the valve plate 56. At the same time, through the rotation of the guide plate 55, multiple sets of convex rods 57 can move on the inner wall of the arc groove of the guide plate 55. Meanwhile, due to the setting of the bottom guide block 58, the valve plate 56 can only move along the straight groove, so that the exhaust pipe 51 and the through hole at the center of the guide plate 55 are blocked and closed by the splicing of multiple sets of valve plates 56.
[0037] Reference Figure 2 and Figure 6 The adjustable mounting assembly 4 includes a connecting flange 41, which is fixedly connected to the end of the air intake pipe 2 away from the housing 1. The surface of the connecting flange 41 has a through groove. By having a through groove on the surface of the connecting flange 41, the flange at the flue gas connection pipe is connected to the connecting flange 41, and the hole of the external connecting flange is aligned with the groove of the connecting flange 41. The inner side of the internal thread block 42 has a through internal thread groove. By having an internal thread groove, the external connecting pipe can be locked with the internal thread block 42 by bolts. The diameter of the internal thread groove of the internal thread block 42 can be adjusted according to the actual working conditions of the equipment. The connecting flange 41 is fixedly connected to the end of the air intake pipe 2 away from the housing 1, and multiple sets of internal thread blocks 42 are slidably connected to the lower surface of the connecting flange 41.
[0038] Reference Figure 6A hinge rod 43 is hinged to the outer sidewall of the internal threaded block 42. A sliding sleeve 44 is hinged to the end of the hinge rod 43 away from the internal threaded block 42. When the sliding sleeve 44 moves up and down, it will push multiple sets of internal threaded blocks 42 to move synchronously on the lower surface of the connecting flange 41 through the hinge rod 43. This allows the position of the internal threaded block 42 to be adjusted in relation to the hole position of the external flange. A positioning screw 45 is threaded through and threaded to the inner sidewall of the sliding sleeve 44. The inner sidewall of the sliding sleeve 44 is in contact with the outer arc surface of the air intake pipe 2. The end of the positioning screw 45 is in contact with the outer arc surface of the air intake pipe 2. Through the self-locking property of the threads between the two, and the contact between the positioning screw 45 and the outer arc surface of the air intake pipe 2, the sliding sleeve 44 can be fixed in multiple positions.
[0039] Working principle: When this new pyrolysis furnace device is working, it first connects to the external flue gas equipment through the adjustable installation component 4: Align the flange of the external flue gas pipe with the connecting flange 41 at the end of the inlet pipe 2 (fixed at the upper and lower ends and side walls of the shell 1, a total of three sets), rotate the positioning screw 45 so that its end is disengaged from the outer arc surface of the inlet pipe 2, push the sliding sleeve 44 to move up and down along the outer arc surface of the inlet pipe 2, and the sliding sleeve 44 drives multiple sets of internal thread blocks 42 to slide synchronously in the groove on the lower surface of the connecting flange 41 through the hinged hinge rod 43, adjust the position of the internal thread blocks 42 to match the hole position of the external flange; after the position is determined, rotate the positioning screw 45 in the opposite direction, and use the self-locking property of the thread to make the end of the positioning screw 45 press tightly against the outer arc surface of the inlet pipe 2, fix the position of the sliding sleeve 44 and the internal thread blocks 42, and then lock them by passing the bolt through the internal thread groove of the external flange and the internal thread block 42, so as to achieve a stable connection between the external flue gas equipment and the inlet pipe 2.
[0040] Next, the direction of flue gas flow is controlled by the coordinated operation of the on / off valve 3 and the linkage exhaust mechanism 5: the on / off valve 3 on the surface of the target intake pipe 2 is opened, and the external flue gas enters the interior of the housing 1 through the intake pipe 2; when the on / off valve 3 rotates, its rotation center axis drives the fixedly connected connecting shaft 6 to rotate synchronously, and the bevel gear b53 fixed at the other end of the connecting shaft 6 rotates accordingly and meshes with the bevel gear a52 on the outside of the exhaust pipe 51. The bevel gear a52 drives the guide plate on the inside of the exhaust pipe 51 through the connecting block 54. 55 rotates; when the guide plate 55 rotates, the protruding rod 57 in the arc groove on its surface slides along the arc groove, and at the same time, the guide block 58 at the bottom of the valve plate 56 slides along the straight groove at the bottom of the inner wall of the exhaust pipe 51, so that multiple sets of valve plates 56 move closer to each other and open the through hole at the center of the exhaust pipe 51 and the guide plate 55, so that when the flue gas enters from the top air intake pipe 2, it will be discharged outward from the bottom exhaust pipe 51. Conversely, when it is connected to the bottom air intake pipe 2 for air intake, the flue gas will be discharged outward from the top exhaust pipe 51.
[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A novel pyrolysis furnace apparatus, comprising a shell (1), characterized in that: The upper and lower ends and the side walls of the housing (1) are fixedly connected to air intake pipes (2). The surfaces of the three sets of air intake pipes (2) are provided with opening and closing valves (3). The surfaces of the air intake pipes (2) are provided with adjustable mounting components (4). The upper and lower sides of the housing (1) are provided with linkage exhaust mechanisms (5). The linkage exhaust mechanism (5) includes an exhaust pipe (51), the outer sidewall of the exhaust pipe (51) is in contact with a bevel gear a (52), the surface of the bevel gear a (52) is meshed with a bevel gear b (53), the rotation center shaft of the bevel gear b (53) is fixedly connected to a connecting shaft (6), the inner sidewall of the exhaust pipe (51) is rotatably connected to a guide plate (55), the outer arc surface of the guide plate (55) is fixedly connected to a connecting block (54), the surface of the guide plate (55) is provided with an arc groove, the inner wall of the arc groove of the guide plate (55) is slidably connected to a protruding rod (57), the bottom end of the outer wall of the protruding rod (57) is fixedly connected to a valve plate (56), and the bottom end of the outer wall of the valve plate (56) is fixedly connected to a guide block (58).
2. The novel pyrolysis furnace apparatus according to claim 1, characterized in that: The adjustable mounting assembly (4) includes a connecting flange (41) which is fixedly connected to the end of the air intake pipe (2) away from the housing (1). Multiple sets of internal threaded blocks (42) are slidably connected to the lower surface of the connecting flange (41). A hinge rod (43) is hinged to the outer sidewall of the internal threaded block (42). A sliding sleeve (44) is hinged to the end of the hinge rod (43) away from the internal threaded block (42). A positioning screw (45) is threaded through and threaded to the inner sidewall of the sliding sleeve (44).
3. The novel pyrolysis furnace apparatus according to claim 1, characterized in that: The exhaust pipe (51) is provided in two sets, and the two sets of exhaust pipes (51) are respectively fixedly connected to the upper and lower surfaces of the housing (1).
4. The novel pyrolysis furnace apparatus according to claim 1, characterized in that: The end of the connecting shaft (6) away from the bevel gear b (53) is fixedly connected to the rotation center shaft of the opening and closing valve (3), and the end of the connecting block (54) away from the guide plate (55) is fixedly connected to the inner arc surface of the bevel gear a (52).
5. The novel pyrolysis furnace apparatus according to claim 1, characterized in that: The outer arc surface of the exhaust pipe (51) is provided with a groove, and the connecting block (54) passes through and is slidably connected to the inner wall of the groove of the exhaust pipe (51).
6. The novel pyrolysis furnace apparatus according to claim 1, characterized in that: A straight groove is provided at the bottom end of the inner wall of the exhaust pipe (51), and the guide block (58) is slidably connected to the inner wall of the straight groove of the exhaust pipe (51).
7. The novel pyrolysis furnace apparatus according to claim 2, characterized in that: The connecting flange (41) is fixedly connected to the end of the air intake pipe (2) away from the housing (1). The surface of the connecting flange (41) is provided with a through groove, and the inner side of the internal thread block (42) is provided with a through internal thread groove.
8. The novel pyrolysis furnace apparatus according to claim 2, characterized in that: The inner sidewall of the sliding sleeve (44) is in contact with the outer arc surface of the air intake pipe (2), and the end of the positioning screw (45) is in contact with the outer arc surface of the air intake pipe (2).