Adaptive pulse flame singeing device for pig skin
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-06-18
- Publication Date
- 2026-08-14
AI Technical Summary
[0004]针对现有技术的不足，本发明提供了自适应生猪表皮的脉冲火焰燎毛装置，解决了现有固定式燎毛设备无法适应生猪体型差异导致燎毛不均、局部会烧伤，以及开放式喷火导致热量散失和油脂会堵塞喷嘴的问题
1、本发明通过滑动环与空心转板的传动配合，结合弧形引导板两端的耐高温滚轮抵接生猪表皮，能够根据不同生猪的体型轮廓自动调节引导板的偏转角度；配合弹性复位件的缓冲支撑，装置在燎毛过程中始终与猪皮保持稳定的物理间距，既能保证各个部位去毛的均匀性，又能有效防止距离过近导致局部猪皮被高温烧伤。
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Abstract
Description
Technical Field
[0001] This invention relates to the technical field of pig slaughtering and processing equipment, specifically to an adaptive pulse flame singeing device for pig skin. Background Technology
[0002] In pig slaughtering lines, pigs that have undergone mechanical dehairing usually still have some fine hairs and downy hairs remaining on their skin. In order to completely remove these hairs and sterilize the skin at high temperatures, processing plants generally use a flame singeing process. Most of the commonly used automated singeing equipment currently has a fixed frame set on both sides or around the conveyor track, and fixed gas nozzles are installed on the frame to directly spray flames onto the passing pigs.
[0003] However, due to the significant differences in body size between different batches of pigs, and the uneven surface contours of various parts of the pig's body (such as the back, abdomen, and legs), the fixed nozzles cannot be dynamically adjusted according to the actual curvature and distance of the pig's body surface. This situation leads to incomplete singeing and residual hair on the concave parts far from the nozzle, while the protruding parts close to the nozzle suffer from overheating, causing the pigskin to char and crack, directly reducing the appearance quality of the meat. At the same time, the traditional open-type flame method lacks effective constraint on the flame direction, with most of the heat being directly lost into the air, resulting in high fuel consumption. Furthermore, during the singeing process, the splattered grease caused by heat will directly spray and adhere to the exposed nozzles, causing pore blockage or unstable combustion over long-term operation. In addition, high-temperature singeing produces a large amount of acrid fumes with a pungent odor. Existing equipment is usually limited by its structural layout, making it difficult to achieve rapid sealing while ensuring smooth entry and exit of the pig hooks, causing the fumes to leak into the production workshop and affecting the on-site working environment. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this invention provides an adaptive pulse flame singeing device for pig skin, which solves the problems of uneven singeing and localized burns caused by the inability of existing fixed singeing equipment to adapt to differences in pig body size, as well as heat loss and nozzle clogging caused by open flame.
[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: an adaptive pulse flame singeing device for pig skin, comprising a heat-insulated box, wherein a T-shaped guide rail for suspending and transporting pigs is fixedly connected to the top of the heat-insulated box; and a gas pipe connected to a gas source is fixedly connected to the heat-insulated box. The heat insulation box is equipped with an annular guide mechanism. The annular guide mechanism includes a fixed ring fixedly connected inside the heat insulation box, a sliding ring slidably connected to the fixed ring, and multiple hollow rotating plates rotatably connected to the fixed ring in the circumferential direction. The sliding ring is drivenly connected to the multiple hollow rotating plates so as to drive the multiple hollow rotating plates to rotate toward the center of the fixed ring when the sliding ring rotates. An arc-shaped guide plate is rotatably connected to the hollow rotating plate. Both ends of the arc-shaped guide plate are rotatably connected to high-temperature resistant rollers for abutting against the pig's skin. An elastic reset member for driving the arc-shaped guide plate to reset is provided between the arc-shaped guide plate and the hollow rotating plate. A pulse nozzle is fixedly connected to the hollow rotating plate, and the pulse nozzle is connected to the gas pipe.
[0006] Preferably, a plurality of fixed posts are fixedly connected to the fixed ring, and a plurality of hollow rotating plates are rotatably connected to the corresponding fixed posts; a plurality of sliding posts are fixedly connected to the sliding ring, and a slider is rotatably connected to each of the plurality of sliding posts, and a plurality of sliders are slidably connected to the corresponding hollow rotating plates.
[0007] Preferably, a cylinder is fixedly connected inside the heat insulation box, and a limiting block is fixedly connected to the telescopic end of the cylinder; a groove is provided on the sliding ring, and a spherical rod is connected between the limiting block and the groove. One end of the spherical rod slides and rotates within the limiting block, and the other end of the spherical rod slides within the groove, so as to convert the linear motion of the cylinder into the rotation of the sliding ring.
[0008] Preferably, the elastic reset element is a coil spring, and the two ends of the coil spring are respectively connected to the arc-shaped guide plate and the hollow rotating plate.
[0009] Preferably, the high-temperature resistant rollers are two in number and symmetrically rotatably connected to both ends of the arc-shaped guide plate. The sidewalls of the high-temperature resistant rollers protrude from the arc surface of the arc-shaped guide plate facing the inside of the pig, and are used to abut against the pig's skin before the arc-shaped guide plate.
[0010] Preferably, the plurality of hollow rotating plates are evenly spaced along the circumference of the fixed ring, and the plurality of arc-shaped guide plates are respectively installed on the plurality of hollow rotating plates so that they approach each other and enclose each other to form an annular singeing space for wrapping the pig when rotating inward.
[0011] Preferably, the gas pipe passes through the heat insulation box and is also connected to a plurality of fixedly installed flame nozzles; the gas pipe and the plurality of pulse nozzles are all connected by flexible hoses to accommodate the rotation of the hollow rotating plate.
[0012] Preferably, the heat insulation box has safety sealing mechanisms on both sides of its interior. The safety sealing mechanisms include safety doors rotatably connected to the heat insulation box; a U-shaped slide rail is fixedly connected inside the heat insulation box; a sliding block is rotatably connected to the safety door; the sliding block is slidably connected to the U-shaped slide rail; a hydraulic rod is fixedly connected inside the heat insulation box; a linkage push plate is fixedly connected to the telescopic end of the hydraulic rod; and the linkage push plate is rotatably connected to the safety door.
[0013] Preferably, the top of the heat insulation box is provided with an exhaust mechanism, the exhaust mechanism includes a conical guide block connected to the top of the heat insulation box, the top of the conical guide block is connected to a fan, and a filter screen is fixedly connected to one end of the conical guide block near the heat insulation box.
[0014] Preferably, the T-shaped guide rail extends horizontally through the heat insulation box along its length, and passes through the central area above the fixed ring and the sliding ring to guide the pigs through the center of the annular guide mechanism.
[0015] This invention provides an adaptive pulse flame singeing device for pig skin. It has the following beneficial effects: 1. This invention utilizes the transmission cooperation between the sliding ring and the hollow rotating plate, combined with the high-temperature resistant rollers at both ends of the arc-shaped guide plate that abut against the pig's skin. This allows the guide plate to automatically adjust its deflection angle according to the body shape and contour of different pigs. With the buffer support of the elastic reset component, the device maintains a stable physical distance from the pigskin during the singeing process. This ensures the uniformity of hair removal on all parts of the body and effectively prevents localized burns to the pigskin caused by excessively close proximity.
[0016] 2. This invention utilizes multiple inwardly converging arc-shaped guide plates to form a ring-shaped singeing space, allowing the flames ejected from the pulse nozzles to closely adhere to and surround the pig's skin under the constraint and guidance of the guide plates. This structure concentrates heat energy within a specific channel between the guide plates and the pig's body, not only improving gas utilization but also providing a physical shielding effect through the arc-shaped guide plates, preventing the grease from bursting and splashing from the pig's skin from back-blocking the gas pipeline and nozzles.
[0017] 3. This invention combines a safety door with a linkage push plate and a U-shaped slide rail design, integrating rotation and sliding trajectories to achieve automated folding and opening of the insulated box when pigs enter and exit, improving the efficiency of the assembly line. At the same time, the smoke and dust generated during the singeing process will be uniformly drawn upward by the top fan when the box is in a closed state, and then adsorbed and intercepted by the filter screen to prevent harmful smoke from spreading outward and improve the working environment of the processing workshop. Attached Figure Description
[0018] Figure 1 This is a perspective view of the present invention; Figure 2 This is a front view of the present invention; Figure 3 This is a cross-sectional view of the heat insulation box of the present invention; Figure 4 This is a schematic diagram of the structure of the flame nozzle of the present invention; Figure 5 This is a schematic diagram of the annular guide mechanism of the present invention; Figure 6 This is a schematic diagram of the spherical rod of the present invention; Figure 7 This is a schematic diagram of the slider structure of the present invention; Figure 8 This is a schematic diagram of the safety enclosure mechanism of the present invention.
[0019] The components include: 1. Insulation box; 2. Annular guide mechanism; 21. Fixed ring; 22. Sliding ring; 23. Fixed column; 24. Sliding column; 25. Hollow rotating plate; 26. Slider; 27. Arc-shaped guide plate; 28. Pulse nozzle; 29. High-temperature resistant roller; 210. Cylinder; 211. Limiting block; 212. Ball rod; 213. Groove; 3. Safety sealing mechanism; 31. Safety door; 32. U-shaped slide rail; 33. Sliding block; 34. Hydraulic rod; 35. Linkage push plate; 4. Exhaust mechanism; 41. Filter screen; 42. Conical guide block; 43. Fan; 5. T-shaped guide rail; 6. Gas pipe; 7. Flame nozzle. Detailed Implementation
[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0021] Please see the appendix Figure 1 -Appendix Figure 7This invention provides an adaptive pulse flame singeing device for pig skin, comprising an insulated box 1, with a T-shaped guide rail 5 for suspending and transporting pigs fixedly connected to the top of the insulated box 1; a gas pipe 6 connected to a gas source is fixedly connected to the insulated box 1; an annular guide mechanism 2 is provided inside the insulated box 1, the annular guide mechanism 2 including a fixed ring 21 fixedly connected inside the insulated box 1, a sliding ring 22 slidably connected to the fixed ring 21, and multiple hollow rotating plates 25 rotatably connected to the fixed ring 21 along the circumference, the sliding ring 22 and the multiple... A hollow rotating plate 25 is driven to rotate toward the center of the fixed ring 21 when the sliding ring 22 rotates; an arc-shaped guide plate 27 is rotatably connected to the hollow rotating plate 25, and high-temperature resistant rollers 29 for abutting against the pig skin are rotatably connected to both ends of the arc-shaped guide plate 27; an elastic reset member for driving the arc-shaped guide plate 27 to reset is provided between the arc-shaped guide plate 27 and the hollow rotating plate 25; a pulse nozzle 28 is fixedly connected to the hollow rotating plate 25, and the pulse nozzle 28 is connected to the gas pipe 6; A plurality of fixed posts 23 are fixedly connected to the fixed ring 21, and a plurality of hollow rotating plates 25 are rotatably connected to the corresponding fixed posts 23; a plurality of sliding posts 24 are fixedly connected to the sliding ring 22, and a slider 26 is rotatably connected to the plurality of sliding posts 24, and the plurality of sliders 26 are slidably connected to the corresponding hollow rotating plates 25. A cylinder 210 is fixedly connected inside the heat insulation box 1. A limiting block 211 is fixedly connected to the telescopic end of the cylinder 210. A groove 213 is provided on the sliding ring 22. A ball rod 212 is connected between the limiting block 211 and the groove 213. One end of the ball rod 212 slides and rotates in the limiting block 211, and the other end of the ball rod 212 slides in the groove 213, so as to convert the linear motion of the cylinder 210 into the rotation of the sliding ring 22. The elastic reset component is a coil spring, with its two ends connected to the arc-shaped guide plate 27 and the hollow rotating plate 25, respectively. The high-temperature resistant roller 29 has two rollers that are symmetrically rotated and connected to both ends of the arc-shaped guide plate 27. The side wall of the high-temperature resistant roller 29 protrudes from the arc surface of the arc-shaped guide plate 27 facing the inside of the pig, and is used to contact the pig's skin before the arc-shaped guide plate 27. Multiple hollow rotating plates 25 are evenly spaced along the circumference of the fixed ring 21, and multiple arc-shaped guide plates 27 are respectively installed on the multiple hollow rotating plates 25 so that they approach each other and enclose each other to form an annular singeing space for wrapping the pig when rotating inward. Specifically, during the singeing operation, the T-shaped guide rail 5, in conjunction with external conveying equipment, guides the pig to the central area of the fixed ring 21 and the sliding ring 22. At this time, the cylinder 210 is activated, and its telescopic end pushes the limiting block 211 to move linearly. During the movement, one end of the ball rod 212 slides and changes angle within the limiting block 211, while its other end slides and receives force within the groove 213, thus converting the linear thrust into torque, driving the sliding ring 22 to rotate circumferentially inside the fixed ring 21. As the sliding ring 22 rotates, the sliding column 24 fixed on it undergoes circumferential displacement, causing the slider 26 to move synchronously. Since the slider 26 is slidably connected inside the hollow rotating plate 25, the displacement of the slider 26 forces multiple hollow rotating plates 25 to rotate around their corresponding fixed columns. 23. The hollow rotating plate 25 deflects inward synchronously; during the inward deflection and retraction of the hollow rotating plate 25, the arc-shaped guide plate 27 is driven to approach the pig; since the side wall of the high-temperature resistant roller 29 protrudes from the surface of the guide plate, the high-temperature resistant roller 29 will first contact the pig's skin and roll along the pig's skin surface; when encountering changes in the size of the pig's body surface or uneven parts, the reaction force of the high-temperature resistant roller 29 will drive the arc-shaped guide plate 27 to overcome the elasticity of the coil spring and undergo adaptive rotation fine adjustment at the end of the hollow rotating plate 25; through this mechanism, multiple arc-shaped guide plates 27 surround and retract, and always conform to the contour changes of the pig, ensuring that the flames emitted by the pulse nozzle 28 are limited within the specific gap formed between the guide plate and the pig's skin, achieving uniform and safe surface singeing.
[0022] See appendix Figure 1 -Appendix Figure 8 The gas pipe 6 passes through the heat insulation box 1 and is also connected to multiple fixedly installed flame nozzles 7; the gas pipe 6 and multiple pulse nozzles 28 are all connected by flexible hoses to accommodate the rotation of the hollow rotating plate 25. Safety sealing mechanisms 3 are provided on both sides of the interior of the heat insulation box 1. The safety sealing mechanism 3 includes a safety door 31 rotatably connected to the heat insulation box 1; a U-shaped slide rail 32 is fixedly connected inside the heat insulation box 1, and a sliding block 33 is rotatably connected to the safety door 31. The sliding block 33 is slidably connected to the U-shaped slide rail 32; a hydraulic rod 34 is fixedly connected inside the heat insulation box 1, and a linkage push plate 35 is fixedly connected to the telescopic end of the hydraulic rod 34. The linkage push plate 35 is rotatably connected to the safety door 31. The top of the heat insulation box 1 is provided with an exhaust mechanism 4. The exhaust mechanism 4 includes a conical guide block 42 connected to the top of the heat insulation box 1. A fan 43 is connected to the top of the conical guide block 42. A filter screen 41 is fixedly connected to one end of the conical guide block 42 near the heat insulation box 1. The T-shaped guide rail 5 runs horizontally through the heat insulation box 1 along its length, and passes through the central area above the fixed ring 21 and the sliding ring 22 to guide the pigs through the center of the ring guide mechanism 2. Specifically, when the hollow rotating plate 25 deflects under the drive, the flexible hose connecting the gas pipe 6 and the pulse nozzle 28 will deform accordingly, thereby maintaining a stable gas supply without hindering the movement of the mechanism. At the same time, the fixedly installed nozzle 7 can perform basic singeing on a large area of the pig. When the pig needs to enter or leave the insulated box 1, the hydraulic rod 34 is retracted, driving the linkage push plate 35 to move. The linkage push plate 35 applies a pulling force to the safety door 31, causing the safety door 31 to move. During this process, the sliding block 33 installed on the safety door 31 slides along the trajectory of the U-shaped slide rail 32. The movement of the safety door 31 is limited and guided, forcing it to open in a folding and rotating manner to clear the conveying channel. After the pigs arrive, the hydraulic rod 34 extends and pushes the safety door 31 to close, sealing the heat insulation box 1 to prevent heat loss. The fumes containing grease and burnt smell generated during the singeing process will flow upward under the negative pressure suction of the fan 43. The fumes first pass through the filter screen 41, where grease particles and impurities are adsorbed and intercepted. The filtered gas is then guided by the conical guide block 42, drawn out by the fan 43, and discharged to the external collection and treatment system, thereby keeping the inside of the device and the working environment clean.
[0023] Working principle: First, the external conveyor line sends the hook carrying the pig into the heat insulation box 1 along the T-shaped guide rail 5. After the pig reaches the center position of the ring guide mechanism 2, the hydraulic rod 34 extends to push the linkage push plate 35 to move. The linkage push plate 35 drives the safety door 31 to move. At this time, the sliding block 33 on the safety door 31 slides along the U-shaped slide rail 32. Under the guidance and constraint of the slide rail, the safety doors 31 on both sides rotate and close around the hinge of the heat insulation box 1, sealing the heat insulation box 1. After the sealing is completed, the cylinder 210 is activated, and the telescopic end pushes the limiting block 211 to move linearly. One end of the ball rod 212 inside the limiting block 211 moves and deflects accordingly, while the other end of the ball rod 212 slides in the groove 213 of the sliding ring 22. Through this connection method, the thrust of the cylinder 210 is converted into torque, which drives the sliding ring 22 to rotate along the inner side of the fixed ring 21. When the sliding ring 22 rotates, the multiple sliding columns 24 above deflect accordingly and drive the slider 26 to move. The slider 26 slides inside the hollow rotating plate 25 and pushes the hollow rotating plate 25, so that the multiple hollow rotating plates 25 synchronously retract towards the center of the mechanism with the fixed column 23 as the axis. As the hollow rotating plate 25 retracts inward, the high-temperature resistant rollers 29 protruding from both ends of the arc-shaped guide plate 27 contact the pig's skin and roll. When the size of the pig's body changes or there are uneven parts, the high-temperature resistant rollers 29 are pushed by the reaction force to push the arc-shaped guide plate 27 to overcome the spring force and deflect at an angle. Multiple sets of arc-shaped guide plates 27 automatically adjust their posture by relying on the balance between the reaction force and the spring force, forming a ring space around the pig that fits the contour of the body surface. The distance between the two is maintained at the protruding height of the high-temperature resistant rollers 29. The gas is split into two paths through the gas pipe 6. One path enters the fixed nozzle 7 for basic singeing; the other path enters the pulse nozzle 28 on the hollow rotating plate 25 through a flexible hose. The flexible hose bends as the hollow rotating plate 25 rotates to maintain the gas path connection. After ignition, the pulse nozzle 28 sprays flames at the pig. The arc-shaped guide plate 27 blocks and guides the flames, confining them between the guide plate and the pig skin, while preventing the hot splattered grease from adhering to the pulse nozzle 28. The smoke generated by singeing rises upwards, and the fan 43 starts to draw it in. When the smoke passes through the filter screen 41, the oil and impurities are intercepted by the mesh. The filtered gas is discharged from the heat insulation box 1 through the conical guide block 42. After singeing, cylinder 210 retracts in the opposite direction, pulling sliding ring 22 to reverse. All components retract along their original trajectory, causing arc-shaped guide plate 27 to open outward. At the same time, hydraulic rod 34 retracts, pulling linkage push plate 35. Safety door 31 retracts along U-shaped slide rail 32 and rotates to open, allowing the pig to move out along T-shaped guide rail 5.
[0024] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An adaptive pulse flame singeing device for pig skin, comprising an insulated box (1), characterized in that: The top of the interior of the insulated box (1) is fixedly connected to a T-shaped guide rail (5) for suspending and transporting live pigs. A gas pipe (6) connected to a gas source is fixedly connected to the heat insulation box (1); The heat insulation box (1) is provided with an annular guide mechanism (2). The annular guide mechanism (2) includes a fixed ring (21) fixedly connected inside the heat insulation box (1). A sliding ring (22) is slidably connected to the fixed ring (21). Multiple hollow rotating plates (25) are rotatably connected to the fixed ring (21) in the circumferential direction. The sliding ring (22) is connected to the multiple hollow rotating plates (25) in a transmission connection so as to drive the multiple hollow rotating plates (25) to rotate toward the center of the fixed ring (21) when the sliding ring (22) rotates. An arc-shaped guide plate (27) is rotatably connected to the hollow rotating plate (25). Both ends of the arc-shaped guide plate (27) are rotatably connected to high-temperature resistant rollers (29) for abutting against the skin of pigs. An elastic reset member for driving the arc-shaped guide plate (27) to reset is provided between the arc-shaped guide plate (27) and the hollow rotating plate (25). A pulse nozzle (28) is fixedly connected to the hollow rotating plate (25), and the pulse nozzle (28) is connected to the gas pipe (6).
2. The adaptive pulse flame singeing device for pig skin according to claim 1, characterized in that, The fixed ring (21) is fixedly connected to a plurality of fixed posts (23), and the plurality of hollow rotating plates (25) are rotatably connected to the corresponding fixed posts (23); the sliding ring (22) is fixedly connected to a plurality of sliding posts (24), and the plurality of sliding posts (24) are rotatably connected to sliders (26), and the plurality of sliders (26) are slidably connected to the corresponding hollow rotating plates (25).
3. The adaptive pulse flame singeing device for pig skin according to claim 1, characterized in that, A cylinder (210) is fixedly connected inside the heat insulation box (1), and a limiting block (211) is fixedly connected to the telescopic end of the cylinder (210); a groove (213) is provided on the sliding ring (22), and a ball rod (212) is connected between the limiting block (211) and the groove (213). One end of the ball rod (212) slides and rotates in the limiting block (211), and the other end of the ball rod (212) slides in the groove (213) to convert the linear motion of the cylinder (210) into the rotation of the sliding ring (22).
4. The adaptive pulse flame singeing device for pig skin according to claim 1, characterized in that, The elastic reset component is a coil spring, and the two ends of the coil spring are respectively connected to the arc-shaped guide plate (27) and the hollow rotating plate (25).
5. The adaptive pulse flame singeing device for pig skin according to claim 1, characterized in that, The high-temperature resistant roller (29) has two rollers that are symmetrically rotatably connected to both ends of the arc-shaped guide plate (27). The sidewall of the high-temperature resistant roller (29) protrudes from the arc surface of the arc-shaped guide plate (27) facing the inside of the pig, and is used to contact the pig's skin before the arc-shaped guide plate (27).
6. The adaptive pulse flame singeing device for pig skin according to claim 1, characterized in that, Multiple hollow rotating plates (25) are evenly spaced along the circumference of the fixed ring (21), and multiple arc-shaped guide plates (27) are respectively installed on the multiple hollow rotating plates (25) so that they approach each other and enclose each other to form an annular singeing space for wrapping the pig when rotating inward.
7. The adaptive pulse flame singeing device for pig skin according to claim 1, characterized in that, The gas pipe (6) passes through the heat insulation box (1) and is also connected to a number of fixedly installed flame nozzles (7); the gas pipe (6) and the number of pulse nozzles (28) are connected by flexible hoses to accommodate the rotation of the hollow rotating plate (25).
8. The adaptive pulse flame singeing device for pig skin according to claim 1, characterized in that, Safety sealing mechanisms (3) are provided on both sides of the interior of the heat insulation box (1). The safety sealing mechanism (3) includes a safety door (31) rotatably connected to the heat insulation box (1). A U-shaped slide rail (32) is fixedly connected inside the heat insulation box (1). A sliding block (33) is rotatably connected to the safety door (31). The sliding block (33) is slidably connected to the U-shaped slide rail (32). A hydraulic rod (34) is fixedly connected inside the heat insulation box (1). A linkage push plate (35) is fixedly connected to the telescopic end of the hydraulic rod (34). The linkage push plate (35) is rotatably connected to the safety door (31).
9. The adaptive pulse flame singeing device for pig skin according to claim 1, characterized in that, The top of the heat insulation box (1) is provided with an exhaust mechanism (4), which includes a conical guide block (42) connected to the top of the heat insulation box (1). A fan (43) is connected to the top of the conical guide block (42), and a filter screen (41) is fixedly connected to one end of the conical guide block (42) near the heat insulation box (1).
10. The adaptive pulse flame singeing device for pig skin according to claim 1, characterized in that, The T-shaped guide rail (5) runs horizontally through the heat insulation box (1) along its length and passes through the central area above the fixed ring (21) and the sliding ring (22) to guide the pigs through the center of the annular guide mechanism (2).