Combustion furnace body
By designing standardized combustion furnace body installation devices, quick change devices and adjustment devices, the existing combustion furnace design is solved, the problems of complex connections, cumbersome connections and difficult flow adjustment are achieved, and an efficient and safe combustion process and optimized combustion efficiency are achieved.
Patent Information
- Application Number
- CN202420977581.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-05-08
AI Technical Summary
The existing combustion furnace body design lacks standardization, resulting in complex production process and high cost; the gas pipeline connection and release mechanism are cumbersome, affecting operational efficiency and increasing safety risks; the intake pipe flow regulation is difficult to accurately regulate, resulting in insufficient fuel combustion and reducing combustion efficiency and increase harmful emissions.
A combustion furnace body is designed, including a mounting device and a quick change device. The installation device improves assembly efficiency and thermal efficiency through the combination of furnace wall, refractory bricks, air intake pipes and air holes; the quick change device realizes fast and convenient connection and disconnection of gas pipelines through components such as conveyor pipes, connecting pipes and pulling belts; The device achieves precise adjustment of the intake pipe flow through components such as fixing frames, adjustment sleeves and screws.
The furnace body assembly process is simplified, the production difficulty and cost are reduced, the operation efficiency and safety of the combustion furnace are improved, the effective mixing of air and gas is ensured, the combustion process is optimized, the combustion efficiency is improved, and harmful emissions are reduced.
Smart Images
Figure CN222438501U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of combustion furnaces, and more specifically, to a combustion furnace body. Background Art
[0002] In the current industrial manufacturing environment, combustion furnaces, as key industrial heating equipment, play a vital role in various production processes. The design and construction of the furnace body are the basis for ensuring its efficient operation. However, the existing combustion furnace body design and manufacturing process faces many challenges.
[0003] First, the design and manufacturing process of the combustion furnace body lacks standardization. Due to the diversity of market demand, the size and shape of the combustion furnace body are almost all customized according to the specific requirements of the commissioning unit. This highly customized demand leads to the complexity of the production process. Manufacturers need to personalize the design and processing of each project, which not only increases the design and manufacturing time, but also increases the cost. In addition, the lack of standardization also means that the versatility of parts is low, which adds additional difficulty to storage and maintenance, thereby pushing up the overall production cost and maintenance costs.
[0004] Secondly, the gas pipeline connection and release mechanism of the existing combustion furnace has obvious deficiencies. The gas pipeline is a key component for the normal operation of the combustion furnace and needs to be frequently connected and disconnected to adapt to different working environments and maintenance needs. However, the current gas pipeline connection and release operations are usually cumbersome and cannot be operated quickly and conveniently. This design not only affects the operating efficiency of the combustion furnace, but also increases the safety risk of operation to a certain extent, because the complicated and time-consuming operation process increases the possibility of operational errors.
[0005] In addition, the flow regulation problem of the air intake pipe in the combustion furnace is also a prominent technical problem. During the combustion process, the air flow and speed are crucial to the complete combustion of the fuel. If the air intake speed cannot be effectively controlled, it may cause uneven mixing of air and fuel, thereby causing incomplete combustion of the fuel, which not only reduces the combustion efficiency, but also may produce more harmful emissions and have an adverse impact on the environment. However, it is often difficult to accurately adjust the flow inside the air intake pipe in the existing technology, which limits the flexibility and efficiency of the combustion furnace operation. Summary of the invention
[0006] In view of the problems existing in the prior art, the utility model provides a combustion furnace body to solve the technical problems mentioned in the background technology.
[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a combustion furnace body, including a base, a mounting device is arranged on the base, the mounting device includes a furnace wall, refractory bricks, air holes and an air inlet pipe, the furnace wall is installed above the base, a plurality of refractory bricks are arranged on the inner side of the furnace wall, the air inlet pipe is arranged on one side of the refractory bricks, the air holes are opened on the side wall of the air inlet pipe, one end of the air inlet pipe is connected with an adjusting device, the adjusting device includes a fixed frame, an adjusting sleeve, a movable frame, a slide groove, an adjusting sheet, a slider, a sliding frame, an adjusting pipe, a screw and a screw sleeve, the fixed frame is fixedly installed in the adjusting sleeve, The adjusting sleeve can be movably mounted on one side of the adjusting tube, the movable frame can be movably mounted in the adjusting sleeve, the slide groove is opened on the inner side of the adjusting tube, the sliding block is arranged on the outer side of the sliding frame, and the sliding block is slidably arranged in the slide groove, the two ends of the adjusting sheet are respectively connected with the movable frame and the sliding frame, the sliding frame is slidably mounted in the adjusting tube, the other end of the adjusting tube is fixedly connected to the air intake pipe, one end of the screw rod is connected to the fixed frame, and the other end of the screw is movably connected to the screw sleeve through a thread, the screw sleeve is fixedly connected to one side of the sliding frame, an air chamber is opened on the inner side of the base, and a quick-changing device is connected to one side of the base.
[0008] The utility model is further configured that a spray hole is provided on the top of the base, and the spray hole is communicated with the air chamber.
[0009] The utility model is further configured as follows: the quick-change device includes a delivery pipe, a connecting pipe, a fixing plate, a drawstring, a connecting rod, a plug-in mechanism, a mating rod, a mating block and a mating sleeve; the connecting pipe is connected to one side of the base; one end of the delivery pipe is detachably inserted into the inner side of the connecting pipe; the fixing plate is fixedly connected to the outer side of the connecting pipe; both ends of the connecting rod are respectively connected to the mating sleeve; both ends of the drawstring are respectively connected to the connecting rod and the fixing plate; the mating rod is movably arranged on one side of the mating block; the mating block is fixedly connected to one side of the mating sleeve; the mating sleeve is movably sleeved on the outer side of the connecting pipe; the configuration of the quick-change device realizes rapid connection and disconnection between pipelines.
[0010] The utility model is further configured that the plug-in mechanism includes a matching frame and a matching groove, the matching groove is arranged on the outside of the conveying pipe, one end of the matching frame is inserted into the matching groove, and both ends of the matching frame are connected to the matching rod.
[0011] The utility model is further configured that a tension spring is provided on the inner side of the matching frame, and the other end of the tension spring is connected to the outer side of the connecting pipe. The configuration of the tension spring ensures the stable use of the matching frame.
[0012] The utility model is further configured such that a return block is provided on one side of the matching sleeve, a spring is provided on the inner side of the connecting pipe, one end of the spring is connected to the return block, and the configuration of the return block and the spring ensures stable clamping of the pipeline and simplifies the use and operation of the quick-change device.
[0013] The utility model is further configured that a gasket is provided on one side of the delivery pipe, and the gasket is detachably installed on the inner side of the connecting pipe, and the configuration of the gasket ensures the sealing of the connection.
[0014] The utility model is further configured such that a rubber ring is provided on the outer side of the delivery pipe, a groove is correspondingly provided on the inner side of the connecting pipe, and the rubber ring is engaged in the corresponding groove. The configuration of the rubber ring and the groove further improves the sealing performance of the connection.
[0015] Compared with the prior art, the utility model provides a combustion furnace body, which has the following beneficial effects:
[0016] 1. The design of the installation device provides an innovative solution to the problems encountered in the prior art of the combustion furnace body. The installation device improves the assembly efficiency and thermal efficiency of the combustion furnace through the combination of furnace wall, refractory bricks, air inlet pipe and air holes. This design simplifies the assembly process of the furnace body and reduces the production difficulty and cost caused by the non-standardization of the furnace body size. The configuration of the air inlet pipe and air holes ensures the effective mixing of air and gas.
[0017] 2. The quick-change device provides a fast, convenient and highly sealed gas pipeline connection and release mechanism through the innovative design of components such as delivery pipes, connecting pipes, fixing plates and pull belts. This mechanism greatly simplifies the connection and disconnection process of the gas pipeline, making the maintenance and daily operation of the burner more efficient and safe. Especially in scenarios where the burner needs to be frequently replaced or maintained, the quick-change device greatly reduces the operation time and labor intensity. At the same time, by improving the sealing performance of the connection, it reduces the risk of gas leakage and improves the safety of the system.
[0018] 3. The regulating device realizes precise regulation of the flow rate inside the intake pipe through a combination of a fixed frame, an adjusting sleeve, a movable frame and a screw. This device allows the operator to accurately control the air flow rate entering the combustion chamber according to actual combustion requirements, thereby optimizing the combustion process and ensuring sufficient combustion of the fuel and effective utilization of thermal energy. This flow regulation mechanism directly solves the problem of incomplete combustion of the fuel caused by the inability to properly adjust the air flow in the prior art, thereby improving combustion efficiency, reducing harmful emissions, and having a positive impact on environmental protection and energy conservation. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is a schematic diagram of the overall structure of a combustion furnace body in the utility model;
[0020] Figure 2 It is a schematic diagram of the cross-sectional structure in the utility model;
[0021] Figure 3It is a structural schematic diagram of the quick-change device part of the utility model;
[0022] Figure 4 It is a cross-sectional structural diagram of the quick-change device part of the utility model;
[0023] Figure 5 It is a schematic cross-sectional structure diagram of the adjusting device part in the utility model.
[0024] In the figure: 1. base; 2. furnace wall; 3. refractory brick; 4. air hole; 5. air inlet pipe; 6. fixed frame; 7. adjusting sleeve; 8. movable frame; 9. slide groove; 10. adjusting plate; 11. slider; 12. sliding frame; 13. adjusting pipe; 14. screw; 15. screw sleeve; 16. air chamber; 17. spray hole; 18. delivery pipe; 19. connecting pipe; 20. fixed plate; 21. pull belt; 22. connecting rod; 23. matching rod; 24. matching block; 25. matching sleeve; 26. matching frame; 27. matching groove; 28. tension spring; 29. return block; 30. spring; 31. gasket; 32. rubber ring; 33. groove. DETAILED DESCRIPTION
[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0026] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.
[0027] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.
[0028] See also Figure 1-5A combustion furnace body includes a base 1, on which a mounting device is arranged, the mounting device includes a furnace wall 2, refractory bricks 3, air holes 4 and an air inlet pipe 5, the furnace wall 2 is arranged above the base 1, a plurality of refractory bricks 3 are arranged on the inner side of the furnace wall 2, the air inlet pipe 5 is arranged on one side of the refractory bricks 3, the air holes 4 are opened on the side wall of the air inlet pipe 5, one end of the air inlet pipe 5 is connected with an adjusting device, the adjusting device includes a fixed frame 6, an adjusting sleeve 7, a movable frame 8, a slide groove 9, an adjusting sheet 10, a slider 11, a sliding frame 12, an adjusting pipe 13, a screw 14 and a screw sleeve 15, the fixed frame 6 is fixedly installed in the adjusting sleeve 7, and the adjusting sleeve 7 can be movably installed in the adjusting sleeve On one side of the tube 13, the movable frame 8 is movably installed in the adjusting sleeve 7, the slide groove 9 is opened on the inner side of the adjusting tube 13, the slider 11 is arranged on the outer side of the sliding frame 12, and the slider 11 is slidably set in the slide groove 9, the two ends of the adjusting piece 10 are respectively connected with the movable frame 8 and the sliding frame 12, the sliding frame 12 is slidably installed in the adjusting tube 13, the other end of the adjusting tube 13 is fixedly connected to the air inlet pipe 5, one end of the screw 14 is connected to the fixed frame 6, and the other end of the screw 14 is movably connected to the screw sleeve 15 through a thread, and the screw sleeve 15 is fixedly connected to one side of the sliding frame 12, an air chamber 16 is opened on the inner side of the base 1, and a quick-changing device is connected to one side of the base 1.
[0029] A spray hole 17 is provided at the top of the base 1 , and the spray hole 17 is communicated with the air chamber 16 .
[0030] In this embodiment, when the combustion furnace is needed, first, a base 1 and a furnace wall 2 of corresponding specifications are selected according to actual needs, and then the refractory bricks 3 are stacked one by one according to the specifications of the base 1, so that the refractory bricks 3 form a combustion chamber in the middle, and then the furnace wall 2 is set on the outside of the refractory bricks 3, and the furnace wall 2 is installed on the top of the base 1, and then the air intake pipe 5 is placed on one side of the refractory bricks 3 according to the specifications, and then the external airflow is transported to each air intake pipe 5 through an external conveying device, and then the air is sprayed toward the combustion chamber formed in the middle of the refractory bricks 3 through a plurality of air holes 4 opened on the side wall of the air intake pipe 5, and then the gas is transported to the gas chamber 16 through an external gas pipeline, so that the gas is sprayed into the combustion chamber through the spray hole 17 opened at the top of the base 1, so that the air is fully in contact with the gas output in the gas chamber 16, and then the gas is ignited to ensure the combustion of the gas in the combustion furnace. When the air needs to be adjusted according to demand When the flow rate enters, the adjusting sleeve 7 is rotated, and the adjusting sleeve 7 drives the screw 14 to move through the fixed frame 6. Since the screw 14 can movably pass through the movable frame 8, the movable frame 8 will not move with the screw 14. Since the adjusting tube 13 is fixedly connected to the intake pipe 5, and due to the limitation of the slider 11 and the slide groove 9, the sliding frame 12 will not rotate. At the same time, since the screw 14 and the screw sleeve 15 are movably connected by threads, when the screw 14 moves in the screw sleeve 15, the sliding frame 12 will slide in the adjusting tube 13, and the sliding frame 12 will drive the slider 11 to slide in the slide groove 9, and then the distance between the movable frame 8 and the sliding frame 12 will gradually shorten, and the gap between the adjusting plates 10 will change, thereby changing the flow rate of air passing through, thereby driving the purpose of adjusting the air entering the flow rate. After the adjustment is completed, stop rotating the adjusting sleeve 7, thereby ensuring the full combustion of the gas in the combustion furnace.
[0031] See also Figure 1-4 As an implementation method of a combustion furnace body for a quick-change device: the quick-change device includes a delivery pipe 18, a connecting pipe 19, a fixing plate 20, a drawstring 21, a connecting rod 22, a plug-in mechanism, a matching rod 23, a matching block 24 and a matching sleeve 25. The connecting pipe 19 is connected to one side of the base 1, one end of the delivery pipe 18 is detachably inserted into the inner side of the connecting pipe 19, the fixing plate 20 is fixedly connected to the outer side of the connecting pipe 19, both ends of the connecting rod 22 are respectively connected to the matching sleeve 25, both ends of the drawstring 21 are respectively connected to the connecting rod 22 and the fixing plate 20, the matching rod 23 is movably arranged on one side of the matching block 24, the matching block 24 is fixedly connected to one side of the matching sleeve 25, and the matching sleeve 25 is movably sleeved on the outer side of the connecting pipe 19.
[0032] The plug-in mechanism includes a matching frame 26 and a matching groove 27 . The matching groove 27 is arranged outside the delivery pipe 18 . One end of the matching frame 26 is inserted into the matching groove 27 . Both ends of the matching frame 26 are connected to the matching rod 23 .
[0033] A tension spring 28 is provided on the inner side of the matching frame 26 , and the other end of the tension spring 28 is connected to the outer side of the connecting pipe 19 .
[0034] A return block 29 is provided on one side of the matching sleeve 25 , and a spring 30 is provided on the inner side of the connecting pipe 19 , and one end of the spring 30 is connected to the return block 29 .
[0035] A gasket 31 is provided on one side of the delivery pipe 18 , and the gasket 31 is detachably mounted on the inner side of the connecting pipe 19 .
[0036] A rubber ring 32 is disposed on the outer side of the delivery pipe 18 , and a groove 33 is correspondingly formed on the inner side of the connecting pipe 19 , and the rubber ring 32 is engaged in the corresponding groove 33 .
[0037] More specifically, when it is necessary to connect the external gas pipeline with the air chamber 16 opened in the base 1, the drawstrings 21 arranged on both sides are pulled at the same time. Since the fixing plate 20 is fixedly connected to the outside of the connecting pipe 19, and the connecting pipe 19 is fixedly connected to the base 1, one side of the fixing plate 20 will not move. Then the drawstring 21 will pull the matching sleeve 25 to rotate in the corresponding direction through the connecting rod 22. The matching sleeve 25 will compress the spring 30 connected on one side through the return block 29. At the same time, the matching sleeve 25 will drive the matching block 24 connected on one side to move. Due to the special structural design of the matching block 24, the matching block 24 will gradually push open the matching rod 23, and then the matching rod 23 will drive the matching frame 26 to move outward, and then the matching frame 26 will drive the tension spring 28 arranged on the inside to stretch. When the drawstring 21 can no longer be pulled, the spring 30 is compressed to the limit by the return block 29, and the matching frame 26 is The side is flush with the inner wall of the connecting pipe 19, and then the delivery pipe 18 is inserted into the connecting pipe 19. When one end of the delivery pipe 18 contacts the gasket 31, the drawstring 21 is released, the spring 30 will drive the return block 29 to reset, and then the matching sleeve 25 will drive the matching block 24 to reset. At this time, the matching rod 23 will lose the limit of the matching block 24, and then the tension spring 28 will drive the matching frame 26 and the matching rod 23 to reset. When the tension spring 28 drives the matching frame 26 to completely reset, one end of the matching frame 26 will be completely inserted into the matching groove 27 opened on the outside of the delivery pipe 18, and due to the unique slope design inside the matching groove 27, the matching frame 26 will drive the delivery pipe 18 to squeeze inward, so that the delivery pipe 18 squeezes the gasket 31, and then the multiple rubber rings 32 opened on the outside of the delivery pipe 18 will be snapped into the corresponding grooves 33 one by one, so that while ensuring the rapid docking of the pipelines, the high sealing of the connection is guaranteed.
[0038] In summary, when the overall equipment is in use or running: when the combustion furnace is needed, first select the base 1 and furnace wall 2 of corresponding specifications according to actual needs, and then stack the refractory bricks 3 one by one according to the specifications of the base 1, so that the refractory bricks 3 are surrounded by a combustion chamber, and then the furnace wall 2 is set on the outside of the refractory bricks 3, and the furnace wall 2 is installed above the base 1, and then the air inlet pipe 5 is placed on one side of the refractory bricks 3 according to the specifications, and then the external airflow is transported to each air inlet pipe 5 through an external conveying device, and then the air is sprayed toward the combustion chamber formed in the middle of the refractory bricks 3 through a plurality of air holes 4 opened on the side wall of the air inlet pipe 5, and then the gas is transported to the gas chamber 16 through an external gas pipeline, so that the gas is sprayed into the combustion chamber through the spray hole 17 opened at the top of the base 1, so that the air is fully in contact with the gas output in the gas chamber 16, and then the gas is ignited to ensure the combustion of the gas in the combustion furnace. When it is necessary to adjust the temperature according to demand When adjusting the air intake flow rate, rotate the adjusting sleeve 7, and the adjusting sleeve 7 drives the screw 14 to move through the fixed frame 6. Since the screw 14 can movably pass through the movable frame 8, the movable frame 8 will not move with the screw 14. Since the adjusting tube 13 is fixedly connected to the intake pipe 5, and due to the limitation of the slider 11 and the slide groove 9, the sliding frame 12 will not rotate. At the same time, since the screw 14 and the screw sleeve 15 are movably connected by threads, when the screw 14 moves in the screw sleeve 15, the sliding frame 12 will slide in the adjusting tube 13, and the sliding frame 12 will drive the slider 11 to slide in the slide groove 9, and then the distance between the movable frame 8 and the sliding frame 12 will gradually shorten, and the gap between the adjusting plates 10 will change, thereby changing the air passing flow rate, thereby driving the purpose of adjusting the air intake flow rate. After the adjustment is completed, stop rotating the adjusting sleeve 7, thereby ensuring the full combustion of the gas in the combustion furnace.
[0039] When it is necessary to connect the external gas pipeline with the air chamber 16 opened in the base 1, the drawstrings 21 arranged on both sides are pulled at the same time. Since the fixing plate 20 is fixedly connected to the outside of the connecting pipe 19, and the connecting pipe 19 is fixedly connected to the base 1, one side of the fixing plate 20 will not move. Then the drawstring 21 will pull the matching sleeve 25 to rotate in the corresponding direction through the connecting rod 22, and the matching sleeve 25 will compress the spring 30 connected on one side through the return block 29. At the same time, the matching sleeve 25 will drive the matching block 24 connected on one side to move. Due to the special structural design of the matching block 24, the matching block 24 will gradually push open the matching rod 23, and then the matching rod 23 will drive the matching frame 26 to move outward, and then the matching frame 26 will drive the tension spring 28 arranged on the inside to stretch. When the drawstring 21 can no longer be pulled, the spring 30 is compressed to the limit by the return block 29, and one side of the matching frame 26 is connected to the connecting rod. The inner wall of the connecting pipe 19 is flush, and then the delivery pipe 18 is inserted into the connecting pipe 19. When one end of the delivery pipe 18 contacts the gasket 31, the drawstring 21 is loosened, the spring 30 will drive the return block 29 to reset, and then the matching sleeve 25 will drive the matching block 24 to reset. At this time, the matching rod 23 will lose the limit of the matching block 24, and then the tension spring 28 will drive the matching frame 26 and the matching rod 23 to reset. When the tension spring 28 drives the matching frame 26 to fully reset, one end of the matching frame 26 will be completely inserted into the matching groove 27 opened on the outside of the delivery pipe 18, and due to the unique slope design inside the matching groove 27, the matching frame 26 will drive the delivery pipe 18 to squeeze inward, so that the delivery pipe 18 squeezes the gasket 31, and then the multiple rubber rings 32 opened on the outside of the delivery pipe 18 will be snapped into the corresponding grooves 33 one by one, so that while ensuring the rapid docking of the pipelines, the high sealing of the connection is guaranteed.
[0040] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.
Claims
1. A combustion furnace body, comprising a base (1), characterized in that: The base (1) is provided with a mounting device, the mounting device comprising a furnace wall (2), refractory bricks (3), air holes (4) and an air inlet pipe (5), the furnace wall (2) being mounted above the base (1), the refractory bricks (3) being arranged on the inner side of the furnace wall (2), the air inlet pipe (5) being arranged on one side of the refractory bricks (3), the air holes (4) being arranged on the side wall of the air inlet pipe (5), one end of the air inlet pipe (5) being connected with an adjusting device, the adjusting device comprising a fixing frame (6), an adjusting sleeve (7), a movable frame (8), a sliding groove (9), an adjusting sheet (10), a sliding block (11), a sliding frame (12), an adjusting pipe ( 13), a screw rod (14) and a screw sleeve (15), a fixed frame (6) is installed in an adjusting sleeve (7), a movable frame (8) is installed in the adjusting sleeve (7), a slide groove (9) is opened on the inner side of the adjusting tube (13), a slider (11) is arranged on the outer side of the sliding frame (12), an adjusting piece (10) is arranged on one side of the movable frame (8), the sliding frame (12) is installed in the adjusting tube (13), one end of the screw rod (14) is connected to the fixed frame (6), the screw sleeve (15) is connected to one side of the sliding frame (12), an air chamber (16) is opened on the inner side of the base (1), and a quick change device is connected to one side of the base (1).
2. A combustion furnace body according to claim 1, characterized in that: The top end of the base (1) is provided with a spray hole (17), and the spray hole (17) is in communication with the air chamber (16).
3. A combustion furnace body according to any one of claims 1 or 2, characterized in that: The quick-change device comprises a delivery tube (18), a connecting tube (19), a fixing plate (20), a drawstring (21), a connecting rod (22), a plug-in mechanism, a matching rod (23), a matching block (24) and a matching sleeve (25), wherein the connecting tube (19) is connected to one side of the base (1), one end of the delivery tube (18) can be detachably inserted into the inner side of the connecting tube (19), the fixing plate (20) is fixedly connected to the outer side of the connecting tube (19), the two ends of the connecting rod (22) are respectively connected to the matching sleeve (25), the two ends of the drawstring (21) are respectively connected to the connecting rod (22) and the fixing plate (20), the matching rod (23) is movably arranged on one side of the matching block (24), the matching block (24) is fixedly connected to one side of the matching sleeve (25), and the matching sleeve (25) is movably sleeved on the outer side of the connecting tube (19).
4. A combustion furnace body according to claim 3, characterized in that: The plug-in mechanism comprises a matching frame (26) and a matching groove (27), wherein the matching groove (27) is arranged outside the delivery pipe (18), one end of the matching frame (26) is inserted into the matching groove (27), and both ends of the matching frame (26) are connected to the matching rod (23).
5. The combustion furnace body according to claim 4, characterized in that: A tension spring (28) is provided on the inner side of the matching frame (26), and the other end of the tension spring (28) is connected to the outer side of the connecting pipe (19).
6. The combustion furnace body according to claim 5, characterized in that: A return block (29) is provided on one side of the matching sleeve (25), a spring (30) is provided on the inner side of the connecting pipe (19), and one end of the spring (30) is connected to the return block (29).
7. A combustion furnace body according to claim 6, characterized in that: A gasket (31) is provided on one side of the delivery pipe (18), and the gasket (31) is detachably mounted on the inner side of the connecting pipe (19).
8. The combustion furnace body according to claim 7, characterized in that: A rubber ring (32) is provided on the outer side of the delivery pipe (18), a groove (33) is correspondingly provided on the inner side of the connecting pipe (19), and the rubber ring (32) is engaged in the corresponding groove (33).