Device for preventing the shutdown of a heat conducting oil boiler in the production of chipboard

Abstract

The utility model relates to the related technical field of shaving board preparation device especially, it relates to prevent heat conduction oil boiler stop device in the shaving board preparation, including boiler, one side of boiler is fixedly connected with heat conduction oil pipe, one side of heat conduction oil pipe is fixedly connected with one -way flow -through pipe, in the use process, before normal work, need manual dialing second connecting rod, second connecting rod rotates around the shell and pushes the claw block, cannot pull first connecting rod, first connecting rod keeps stationary, second steel wire rope has no transmission, second connecting rod position does not change, the plug of one -way valve opens under the spring push, when transmission rod shifts downward pull first steel wire rope, the oil in high -position heat -preservation oil storage tank flows back to the boiler under the action of gravity through reflux pipe, after that need again manual dialing second connecting rod makes claw block and first gear recombine, power transmission recovery of conveyer belt drive motor, conveyer belt continues to feed, the production efficiency of shaving board and product pass rate have been greatly improved.

Description

Technical Field

[0001] This utility model relates to the technical field of particleboard preparation equipment, and in particular to a device for preventing the shutdown of a thermal oil boiler during particleboard preparation. Background Technology

[0002] Particleboard is a type of engineered wood product made from wood shavings or chips through processes such as drying, gluing, laying, and hot pressing. Due to its high raw material utilization rate, moderate cost, and stable mechanical properties, it is widely used in furniture manufacturing, building decoration, and other fields. In the production process, the hot pressing stage is the core step that determines the quality of the board. A stable heat source, provided by a thermal oil boiler, is required to allow the board blank to cure the adhesive and evaporate moisture under high temperature and pressure, ensuring uniform density and meeting strength standards. The continuous and stable operation of the thermal oil boiler is crucial to maintaining this process; therefore, a device to prevent the thermal oil boiler from shutting down is particularly necessary in particleboard manufacturing.

[0003] However, in the existing particleboard manufacturing process, the sudden shutdown of the thermal oil boiler directly exposes the vulnerability of the production process. The hot pressing process relies on the stable temperature and pressure provided by the boiler. Once the boiler stops, the temperature of the hot pressing equipment drops sharply and the pressure is lost, which can easily lead to incomplete curing of the adhesive in the board blank, resulting in quality defects such as delamination and bubbling, causing batch scrapping. At the same time, the thermal oil in the pipeline may solidify due to the cessation of circulation, causing pipeline blockage or equipment scaling, increasing maintenance costs and downtime. In addition, if the upstream raw material transportation is not interrupted in time, unprocessed board blanks will accumulate on the conveyor line, further aggravating the chain reaction of production interruption and affecting the particleboard production efficiency and product qualification rate.

[0004] To address the aforementioned issues, a search revealed a patent with publication number CN214468508U that discloses a steam generation device using heat transfer oil as a heat source for wax production. The patent states that "this utility model generates steam by utilizing the heat from a steam drum and surplus heat transfer oil, resulting in low material costs and convenient operation. This enables continuous and stable operation of the wax refining unit after boiler shutdown, avoiding long-term shutdowns due to lack of steam tracing and impacting company profits." This device achieves the function of using heat transfer oil as a heat source and converting softened water into steam through a steam drum to provide steam tracing for the wax refining unit during boiler shutdowns or steam pipeline malfunctions, thus ensuring continuous and stable operation of the wax refining unit during boiler downtime. However, this patent only focuses on the continuous supply of steam to maintain device operation and does not implement functions such as controlling raw material delivery, maintaining pressure in related equipment, or providing emergency insulation or circulation protection for the heat transfer oil itself.

[0005] In light of this, in-depth research into the aforementioned issues led to the creation of this case. Utility Model Content

[0006] The purpose of this invention is to provide a device for preventing the shutdown of thermal oil boilers in particleboard manufacturing. This addresses the vulnerabilities of the existing particleboard manufacturing process mentioned in the background section. During operation, a sudden shutdown of the thermal oil boiler directly exposes the fragility of the production process. The hot-pressing process relies on the stable temperature and pressure provided by the boiler. Once the boiler stops, the temperature of the hot-pressing equipment drops sharply, and pressure is lost, easily leading to incomplete curing of the adhesive in the board blank, resulting in quality defects such as delamination and blistering, causing batch scrapping. Simultaneously, the thermal oil in the pipes may solidify due to the cessation of circulation, causing pipe blockage or equipment scaling, increasing maintenance costs and downtime. Furthermore, if the upstream raw material transport is not interrupted in time, unprocessed board blanks will accumulate on the conveyor line, further exacerbating the chain reaction of production interruption and affecting particleboard production efficiency and product qualification rate.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a device for preventing the shutdown of a thermal oil boiler during particleboard preparation, comprising a boiler, a thermal oil pipe fixedly connected to one side of the boiler, a one-way flow pipe fixedly connected to one side of the thermal oil pipe, a high-level insulated oil storage tank fixedly connected to one end of the one-way flow pipe, a return pipe fixedly connected to one end of the lower surface of the high-level insulated oil storage tank, a one-way valve provided on one side of the inner wall surface of the one-way flow pipe, a pressure valve provided on one side of the inner wall surface of the thermal oil pipe, a high-temperature pressure-bearing sleeve fixedly connected to the other side of the surface of the thermal oil pipe, a push block slidably connected to one side of the inner wall surface of the high-temperature pressure-bearing sleeve, a transmission rod abutting one end of the push block, a fixed valve seat slidably connected to one side of the surface of the transmission rod, a sealing block fixedly connected to one end of the lower surface of the fixed valve seat, and a one-way flow pipe abutting one end of the transmission rod abutting one end of the heat transfer oil pipe. A first steel wire rope is fixedly connected to one end of the first steel wire rope. A first connecting rod is fixedly connected to one end of the first connecting rod via a bearing. A second steel wire rope is fixedly connected to one end of the first connecting rod. A transmission block is attached to one side of the surface of the second steel wire rope. A second bracket is attached to one side of the transmission block via a bearing. A second connecting rod is fixedly connected to one end of the second steel wire rope. A housing is attached to one side of the second connecting rod via a bearing. A claw block is attached to one end of the second connecting rod. A limit shaft is slidably connected to the inner surface of the claw block. A first gear is attached to one side of the surface of the limit shaft via a bearing. A second gear is meshed with one side of the surface of the first gear. A conveyor belt drive motor is fixedly connected to one end of the limit shaft. A conveyor belt drive shaft is fixedly connected to the inner surface of the second gear. A fixed frame is fixedly connected to one end of the lower surface of the housing.

[0008] Preferably, the boiler is fixedly connected to the return pipe, and the fixed valve seat is fixedly connected to the high-temperature pressure-bearing sleeve.

[0009] Preferably, the transmission rod is slidably connected to the sealing block, and the high-temperature pressure-bearing sleeve is slidably connected to the transmission rod.

[0010] Preferably, the high-temperature pressure-bearing sleeve is fixedly connected to the first bracket, and the second bracket is fixedly connected to the fixing frame.

[0011] Preferably, one side of the surface of the limiting shaft is provided with a concave structure that matches the size of the claw block, and one side of the surface of the first gear is provided with a concave structure that matches the size of the claw block.

[0012] Preferably, the limiting shaft is connected to the housing bearing, and the conveyor belt drive shaft is connected to the housing bearing.

[0013] Preferably, the conveyor belt drive motor is fixedly connected to the fixed frame.

[0014] Compared with existing technologies, the beneficial effects of this utility model are as follows: In particleboard manufacturing, this device prevents the shutdown of the thermal oil boiler by promptly cutting off the raw material transport power through a separation mechanism between the claw and gear, avoiding subsequent processing problems caused by slab accumulation and preventing the chain reaction of production interruption. The circulation system, consisting of a one-way flow pipe, a high-level insulated oil storage tank, and a return pipe, prevents pipe blockage or equipment scaling caused by the solidification of thermal oil during shutdown, reducing maintenance costs and downtime. Through precise control of the power transmission related to the hot pressing process via mechanical structure, it indirectly reduces the problem of sudden drops in hot pressing temperature and pressure caused by boiler shutdown, helping to reduce the risk of quality defects such as slab delamination and blistering. Therefore, it provides multiple guarantees for production continuity and product quality when the boiler is unexpectedly shut down, greatly improving the production efficiency and product qualification rate of particleboard. Attached Figure Description

[0015] Figure 1 This is a side view of the appearance structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the interaction between the one-way flow pipe and the pressure valve in this utility model.

[0017] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0018] Figure 4 This utility model Figure 2 Enlarged structural diagram at point B;

[0019] Figure 5 This is a schematic diagram of the structure in which part of the outer shell and the conveyor belt drive motor cooperate with each other in this utility model;

[0020] Figure 6 This utility model Figure 5 Enlarged structural diagram at point C.

[0021] In the diagram: 1. Boiler; 2. Heat transfer oil pipe; 3. One-way flow pipe; 4. High-level insulated oil storage tank; 5. Return pipe; 6. One-way valve; 7. Pressure valve; 8. High-temperature pressure-bearing sleeve; 9. Push block; 10. Transmission rod; 11. Fixed valve seat; 12. Sealing block; 13. First wire rope; 14. First connecting rod; 15. First bracket; 16. Second wire rope; 17. Transmission block; 18. Second bracket; 19. Second connecting rod; 20. Outer shell; 21. Claw block; 22. Limiting shaft; 23. First gear; 24. Second gear; 25. Conveyor belt drive motor; 26. Conveyor belt drive shaft; 27. Fixed frame. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-6This utility model provides a technical solution: a device for preventing the shutdown of a thermal oil boiler during particleboard preparation, comprising a boiler 1, a thermal oil pipe 2 fixedly connected to one side of the boiler 1, a one-way flow pipe 3 fixedly connected to one side of the thermal oil pipe 2, a high-level insulated oil storage tank 4 fixedly connected to one end of the one-way flow pipe 3, a return pipe 5 fixedly connected to one end of the lower surface of the high-level insulated oil storage tank 4, a one-way valve 6 provided on one side of the inner wall surface of the one-way flow pipe 3, a pressure valve 7 provided on one side of the inner wall surface of the thermal oil pipe 2, a high-temperature pressure-bearing sleeve 8 fixedly connected to the other side of the surface of the thermal oil pipe 2, a push block 9 slidably connected to one side of the inner wall surface of the high-temperature pressure-bearing sleeve 8, a transmission rod 10 attached to one end of the push block 9, and a fixed valve seat 1 slidably connected to one side of the surface of the transmission rod 10. 1. A sealing block 12 is fixedly connected to one end of the lower surface of the fixed valve seat 11. A first steel wire rope 13 is fixedly connected to one end of the transmission rod 10. A first connecting rod 14 is fixedly connected to one end of the first steel wire rope 13. A first bracket 15 is connected to one side of the first connecting rod 14 via a bearing. A second steel wire rope 16 is fixedly connected to one end of the first connecting rod 14. A transmission block 17 is attached to one side of the surface of the second steel wire rope 16. A second bracket 18 is connected to one side of the transmission block 17 via a bearing. A second connecting rod 19 is fixedly connected to one end of the second connecting rod 19 via a bearing. A claw block 21 is attached to one end of the second connecting rod 19. A limit shaft 22 is slidably connected to the inner surface of the claw block 21. A first bracket 18 is connected to one side of the surface of the limit shaft 22 via a bearing. A first gear 23 is engaged with a second gear 24 on one side of its surface. A conveyor belt drive motor 25 is fixedly connected to one end of a limiting shaft 22. A conveyor belt drive shaft 26 is fixedly connected to the inner surface of the second gear 24. A fixing bracket 27 is fixedly connected to one end of the lower surface of the outer casing 20. During use, before normal operation, the second connecting rod 19 needs to be manually moved. The second connecting rod 19 rotates around the outer casing 20 and pushes the claw block 21, so that the claw block 21 engages with the concave structure of the first gear 23. At this time, the power of the conveyor belt drive motor 25 is transmitted to the conveyor belt drive shaft 26 through the limiting shaft 22, the first gear 23, and the second gear 24, preparing for subsequent feeding. During normal operation, the boiler 1 runs, and the heat transfer oil in the heat transfer oil pipe 2 remains normal. The pressure is greater than the spring force of the one-way valve 6, so the one-way valve 6 closes. The heat transfer oil flows along the normal circulation path and does not enter the one-way flow pipe 3. The high-level heat-insulated oil storage tank 4 does not store oil for the time being. At the same time, the pressure in the heat transfer oil pipe 2 acts on the push block 9 in the high-temperature pressure-bearing sleeve 8. The push block 9 pushes the transmission rod 10 to move upward along the fixed valve seat 11 and the sealing block 12. Because the first wire rope 13 is located above the transmission rod 10 and is close to the same axis as the transmission rod 10, the first wire rope 13 only bends when the transmission rod 10 moves upward. It cannot pull the first connecting rod 14. The first connecting rod 14 remains stationary. The second wire rope 16 has no transmission. The position of the second connecting rod 19 remains unchanged. The engagement state of the claw block 21 and the first gear 23 is maintained. The conveyor belt continues to run to achieve normal feeding.When boiler 1 is shut down, the pressure in the heat transfer oil pipe 2 drops sharply, becoming less than the spring force of the one-way valve 6. The plug of the one-way valve 6 opens under the spring's push, and the heat transfer oil, under residual pressure, flows through the one-way flow pipe 3 into the high-level insulated oil storage tank 4. The insulation layer maintains the oil temperature, preventing the heat transfer oil in the heat transfer oil pipe 2 from solidifying. Simultaneously, the pressure drop in the heat transfer oil pipe 2 causes the push block 9 and the transmission rod 10 to move downwards. When the transmission rod 10 moves downwards, it pulls the first wire rope 13, which in turn drives the first connecting rod 14 to rotate around the first support 15. Because the ratio of the distance from the long end to the short end of the first connecting rod 14 to the fulcrum is 2:1, the rotation amplitude is amplified. The rotation of the first connecting rod 14 is then transmitted through the second wire rope 16. The second connecting rod 19 rotates around the outer casing 20, pushing the claw block 21 to separate from the concave structure of the first gear 23. The conveyor belt drive motor 25 idles, and power cannot be transmitted to the conveyor belt drive shaft 26, causing the conveyor belt to stop to prevent raw material accumulation. After the equipment returns to normal, the boiler 1 restarts, causing the pressure in the heat transfer oil pipe 2 to rise. The one-way valve 6 closes, and the heat transfer oil resumes normal circulation. At the same time, by turning the valve of the return pipe 5, the oil in the high-level heat-insulating oil storage tank 4 flows back to the boiler 1 under gravity through the return pipe 5. Afterward, the second connecting rod 19 needs to be manually moved again to re-engage the claw block 21 with the first gear 23, restoring power transmission to the conveyor belt drive motor 25, and the conveyor belt continues to feed material.

[0024] Furthermore, the boiler 1 is fixedly connected to the return pipe 5, and the fixed valve seat 11 is fixedly connected to the high-temperature pressure-bearing sleeve 8. The connection between the boiler 1 and the return pipe 5 is secure, preventing leakage or misalignment of the heat transfer oil in the high-level heat-insulating oil storage tank 4 during return flow, and ensuring the sealing and continuity of the return oil path. The fixed valve seat 11 and the high-temperature pressure-bearing sleeve 8 provide a stable sliding support foundation for the transmission rod 10, preventing the transmission rod 10 from shifting or shaking during displacement, and ensuring the accuracy of force transmission.

[0025] Furthermore, the transmission rod 10 is slidably connected to the sealing block 12, and the high-temperature pressure-bearing sleeve 8 is slidably connected to the transmission rod 10. Through the arrangement of the transmission rod 10 and the sealing block 12, the sealing block 12 can effectively seal the inside of the high-temperature pressure-bearing sleeve 8, preventing the heat transfer oil from leaking from the gap between the transmission rod 10 and the high-temperature pressure-bearing sleeve 8, while ensuring the smoothness of the transmission rod 10 when sliding. Through the arrangement of the high-temperature pressure-bearing sleeve 8 and the transmission rod 10, a guiding effect can be provided for the transmission rod 10, ensuring that the transmission rod 10 only makes precise displacement along the axial direction, avoiding the impact of radial offset on the transmission efficiency.

[0026] Furthermore, the high-temperature pressure-bearing sleeve 8 is fixedly connected to the first bracket 15, and the second bracket 18 is fixedly connected to the fixing frame 27. Through the setting of the high-temperature pressure-bearing sleeve 8 and the first bracket 15, the fulcrum of the first connecting rod 14 can be stably fixed, ensuring the stability of the first connecting rod 14 when rotating around the first bracket 15, and avoiding transmission failure due to loosening of the fulcrum. Through the setting of the second bracket 18 and the fixing frame 27, stable support and guidance can be provided for the second wire rope 16, preventing the second wire rope 16 from sagging or deviating during transmission, and ensuring the accuracy of tension transmission.

[0027] Furthermore, one side of the surface of the limiting shaft 22 is provided with a concave structure that matches the size of the claw block 21, and one side of the surface of the first gear 23 is provided with a concave structure that matches the size of the claw block 21. By setting the limiting shaft 22 and the claw block 21, the movement trajectory of the claw block 21 can be limited, preventing the claw block 21 from shifting laterally during engagement or disengagement, and ensuring the accuracy of the claw block 21's movement. By setting the first gear 23 and the claw block 21, the engagement or disengagement of the claw block 21 and the first gear 23 can be made tighter and more reliable, avoiding slippage or disengagement during power transmission, and ensuring the effective transmission or cutoff of power of the conveyor belt drive motor 25.

[0028] Furthermore, the limiting shaft 22 is connected to the bearing of the housing 20, and the conveyor belt drive shaft 26 is connected to the bearing of the housing 20. By setting the limiting shaft 22 and the housing 20, the frictional resistance when the limiting shaft 22 rotates can be reduced, ensuring smooth rotation of the limiting shaft 22. At the same time, it reduces component wear and extends service life. By setting the conveyor belt drive shaft 26 and the housing 20, stable support can be provided for the conveyor belt drive shaft 26, reducing its radial runout when rotating and ensuring the smooth operation of the conveyor belt.

[0029] Furthermore, the conveyor belt drive motor 25 is fixedly connected to the fixed frame 27. By setting the conveyor belt drive motor 25 and the fixed frame 27, the conveyor belt drive motor 25 can be firmly fixed to prevent it from shifting due to vibration during operation, ensuring the concentricity of the motor output shaft and the limit shaft 22, reducing transmission loss, and ensuring the stability of power transmission.

[0030] Working principle: During use, the device operates according to the following logic:

[0031] Preparation stage before normal operation: The second link 19 needs to be manually activated. The second link 19 rotates around the outer shell 20 and pushes the claw block 21, so that the claw block 21 engages with the concave structure of the first gear 23. At this time, the power of the conveyor belt drive motor 25 is transmitted to the conveyor belt drive shaft 26 through the limit shaft 22, the first gear 23, and the second gear 24, preparing for subsequent feeding. At the same time, check that the water tank cooling module and the backup emergency circulation pump are in standby mode and ensure that the initial position of the pipeline valves is correct.

[0032] Normal operating phase: Boiler 1 is running, and the heat transfer oil in the heat transfer oil pipe 2 maintains normal pressure. This pressure is greater than the spring force of the one-way valve 6, so the one-way valve 6 is closed. The heat transfer oil flows along the normal circulation path and does not enter the one-way flow pipe 3. The high-level heat-insulating oil storage tank 4 does not store oil temporarily. At the same time, the pressure in the heat transfer oil pipe 2 acts on the push block 9 in the high-temperature pressure-bearing sleeve 8. The push block 9 pushes the transmission rod 10 to move upward along the fixed valve seat 11 and the sealing block 12. Because the first wire rope 13 is located above the transmission rod 10 and is close to the coaxial axis of the transmission rod 10, the first wire rope 13 only bends when the transmission rod 10 moves upward. It cannot pull the first connecting rod 14, so the first connecting rod 14 remains stationary. The second wire rope 16 has no transmission, the position of the second connecting rod 19 remains unchanged, the engagement state of the claw block 21 and the first gear 23 is maintained, and the conveyor belt continues to run to achieve normal feeding.

[0033] Routine shutdown procedure: The pressure inside the heat transfer oil pipe 2 drops suddenly, becoming less than the spring force of the one-way valve 6. The block of the one-way valve 6 opens under the spring's push, and the heat transfer oil flows into the high-level insulated oil storage tank 4 through the one-way flow pipe 3 under the residual pressure. The oil temperature is maintained by the insulation layer to prevent the heat transfer oil in the heat transfer oil pipe 2 from solidifying. At the same time, the pressure drop inside the heat transfer oil pipe 2 causes the push block 9 and the transmission rod 10 to move downward. When the transmission rod 10 moves downward, it pulls the first steel wire rope 13. The first steel wire rope 13 drives the first connecting rod 14 to rotate around the first support 15. The ratio of the distance from the long end to the short end of the first connecting rod 14 to the fulcrum is 2:1, and the rotation amplitude is amplified. The rotation of the first connecting rod 14 drives the second connecting rod 19 to rotate around the outer shell 20 through the second steel wire rope 16. The second connecting rod 19 pushes the claw block 21 to separate from the concave structure of the first gear 23. The conveyor belt drive motor 25 idles, and power cannot be transmitted to the conveyor belt drive shaft 26. The conveyor belt stops to prevent the accumulation of raw materials.

[0034] Special handling for boiler power outage: If the shutdown is caused by a power outage, start the backup emergency circulation pump, which is powered by an independent power source. Through the connection path between the heat transfer oil pipe 2 and the high-level insulated oil storage tank 4, the heat transfer oil in the furnace is forcibly driven to circulate. The oil is pumped into the furnace from the high-level insulated oil storage tank 4 and then returned through the return pipe 5 to prevent the heat transfer oil from stagnating and causing a rapid increase in the temperature in the furnace, which could lead to a fire. The circulation continues until the fault is eliminated or the oil temperature drops to a safe range.

[0035] When the press stops due to a malfunction and the internal slab cannot be removed, a trigger signal is sent to the control system to open the valve connecting the heat transfer oil pipe 2 and the water tank. The heat transfer oil enters the water tank cooling module for rapid cooling. The cooled heat transfer oil is then pumped to the press through an auxiliary pump to maintain a low-temperature environment inside the press and prevent the slab from carbonizing due to prolonged high-temperature baking and causing a fire. At the same time, the conveyor belt is kept stopped, and the claw block 21 is separated from the first gear 23 to prevent new raw materials from entering.

[0036] After the equipment returns to normal, boiler 1 restarts, causing the pressure in the heat transfer oil pipe 2 to rise. The one-way valve 6 closes, and the heat transfer oil resumes normal circulation. The water tank cooling module and the backup emergency circulation pump are shut down. By turning the valve on the return pipe 5, the oil in the high-level insulated oil storage tank 4 flows back to boiler 1 under gravity through the return pipe 5. Afterward, the second connecting rod 19 needs to be manually moved again to re-engage the claw block 21 with the first gear 23. The power transmission of the conveyor belt drive motor 25 is restored, and the conveyor belt continues to feed materials, ensuring continuous production and greatly improving the production efficiency and product qualification rate of particleboard.

[0037] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for preventing the shutdown of a thermal oil boiler during particleboard manufacturing, comprising a boiler (1), characterized in that: A heat-conducting oil pipe (2) is fixedly connected to one side of the boiler (1), and a one-way flow pipe (3) is fixedly connected to one side of the heat-conducting oil pipe (2). A high-level insulated oil storage tank (4) is fixedly connected to one end of the one-way flow pipe (3), and a return pipe (5) is fixedly connected to one end of the lower surface of the high-level insulated oil storage tank (4). A one-way valve (6) is provided on one side of the inner wall surface of the one-way flow pipe (3), and a pressure valve (7) is provided on one side of the inner wall surface of the heat-conducting oil pipe (2). The other side of the heat-conducting oil pipe (2)... A high-temperature pressure-bearing sleeve (8) is fixedly connected to the side. A push block (9) is slidably connected to one side of the inner wall surface of the high-temperature pressure-bearing sleeve (8). A transmission rod (10) is attached to one end of the push block (9). A fixed valve seat (11) is slidably connected to one side of the surface of the transmission rod (10). A sealing block (12) is fixedly connected to one end of the lower surface of the fixed valve seat (11). A first steel wire rope (13) is fixedly connected to one end of the transmission rod (10). A first connecting rod (14) is fixedly connected to one end of the first steel wire rope (13). The first connecting rod (14) is connected to a first bracket (15) by a bearing on one side. A second steel wire rope (16) is fixedly connected to one end of the first connecting rod (14). A transmission block (17) is attached to one side of the surface of the second steel wire rope (16). A second bracket (18) is connected to one side of the transmission block (17) by a bearing. A second connecting rod (19) is fixedly connected to one end of the second steel wire rope (16). A housing (20) is connected to one side of the second connecting rod (19). A claw is attached to one end of the second connecting rod (19). Block (21), the inner surface of the claw block (21) is slidably connected to a limiting shaft (22), a first gear (23) is connected to one side of the surface of the limiting shaft (22) by a bearing, a second gear (24) is meshed to one side of the surface of the first gear (23), a conveyor belt drive motor (25) is fixedly connected to one end of the limiting shaft (22), a conveyor belt drive shaft (26) is fixedly connected to the inner surface of the second gear (24), and a fixing frame (27) is fixedly connected to one end of the lower surface of the outer shell (20).

2. The device for preventing the shutdown of a thermal oil boiler during particleboard preparation according to claim 1, characterized in that: The boiler (1) is fixedly connected to the return pipe (5), and the fixed valve seat (11) is fixedly connected to the high-temperature pressure sleeve (8).

3. The device for preventing the shutdown of a thermal oil boiler during particleboard preparation according to claim 1, characterized in that: The transmission rod (10) is slidably connected to the sealing block (12), and the high-temperature pressure-bearing sleeve (8) is slidably connected to the transmission rod (10).

4. The device for preventing the shutdown of a thermal oil boiler during particleboard preparation according to claim 1, characterized in that: The high-temperature pressure-bearing sleeve (8) is fixedly connected to the first bracket (15), and the second bracket (18) is fixedly connected to the fixing frame (27).

5. The device for preventing the shutdown of a thermal oil boiler during particleboard preparation according to claim 1, characterized in that: One side of the surface of the limiting shaft (22) is provided with a concave structure that matches the size of the claw block (21), and one side of the surface of the first gear (23) is provided with a concave structure that matches the size of the claw block (21).

6. The device for preventing the shutdown of a thermal oil boiler during particleboard preparation according to claim 1, characterized in that: The limiting shaft (22) is connected to the bearing of the outer shell (20), and the conveyor belt drive shaft (26) is connected to the bearing of the outer shell (20).

7. The device for preventing the shutdown of a thermal oil boiler during particleboard preparation according to claim 1, characterized in that: The conveyor belt drive motor (25) is fixedly connected to the fixed frame (27).

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