Billet flame cutting device

Abstract

The utility model belongs to the technical field of steel billet processing equipment, particularly relates to a steel billet flame cutting device, and provides the following scheme aiming at the problems that the existing steel billet flame cutting device cannot treat disintegrating slag in time, a hydraulic system works unstably and water resources are seriously wasted: the steel billet flame cutting device comprises a cutting equipment body; the protection window is rotationally connected to the front side of the cutting equipment body; the central control system is mounted at the top of the cutting equipment body; the hydraulic lifting assembly is mounted in the cutting equipment body; the cutting assembly is mounted at the output end of the hydraulic lifting assembly; the clamping assembly is mounted at the top of the cutting equipment body; through the innovative design of the synchronous linkage mechanism, the waste heat recovery preheating structure and the sewage circulating filtration, the steel billet flame cutting device effectively overcomes the core defects that an existing steel billet flame cutting device is inconvenient in disintegrating slag treatment, unstable in hydraulic system, waste in water resource, poor in functional module collaboration and the like.

Description

Technical Field

[0001] This application relates to the field of billet processing equipment technology, and in particular to a billet flame cutting device. Background Technology

[0002] Flame cutting of steel billets is a key process in steel production and processing. It uses high-temperature flames to melt and separate steel billets, and is widely used in industries such as metallurgy and machinery manufacturing.

[0003] Chinese utility model patent CN216462374U discloses a steel billet flame cutting device, including a cutting component, a lifting component, and a shelf. A guide rail is fixedly mounted below the cutting component, and the cutting component is movably connected to the guide rail. The shelf corresponds to the cutting component and holds a steel billet to be processed. A corresponding lifting component is located below the steel billet, and a limiting plate is fixedly mounted on the shelf, limiting the side of the steel billet. The advantages of this utility model are: the linear movement cutting device can complete the cutting operation of the steel billet, improving work efficiency; and the lifting component can lift the processed steel billet, making it easier to separate.

[0004] Patent CN114309874B discloses a steel billet flame cutting device and method, including a cutting component, a lifting component, and a shelf. A guide rail is fixedly mounted below the cutting component, and the cutting component is movably connected to the guide rail. The shelf corresponds to the cutting component and holds a steel billet to be processed. A corresponding lifting component is located below the steel billet, and a limiting plate is fixedly mounted on the shelf, limiting the side of the steel billet. The advantages of this invention are: the linear movement cutting device can complete the cutting operation of the steel billet, improving work efficiency; and the lifting component can lift the processed steel billet, making it easier to separate.

[0005] Currently available steel billet flame cutting devices still have many technical defects in actual use, which restrict the improvement of cutting efficiency and processing quality:

[0006] 1. Untimely handling of slag affects the processing environment and equipment operation: A large amount of high-temperature slag is generated during the steel billet cutting process. Existing devices mostly use simple slag collection troughs to collect the slag. The accumulation of slag can easily block the discharge channel, and long-term accumulation of high-temperature slag can cause thermal damage to the bottom structure of the equipment. At the same time, there are no effective cooling measures during the slag transportation process. High-temperature slag can easily cause safety hazards and is difficult to recycle and reuse.

[0007] 2. Poor stability of the hydraulic system: Key components such as the hydraulic lifting assembly of the flame cutting device rely on the hydraulic system for drive. The hydraulic oil's fluidity decreases in low-temperature environments, which can cause the hydraulic lifting assembly to move slowly, affecting cutting accuracy and efficiency. Existing devices lack a preheating mechanism for the hydraulic storage tank, making them unsuitable for low-temperature operating environments.

[0008] 3. Serious waste of water resources and insufficient environmental protection: A large amount of cooling water is used for cooling and slag removal during the cutting process. The existing equipment lacks an effective filtration and recycling mechanism for the wastewater after use. The direct discharge of wastewater not only pollutes the environment but also wastes water resources. At the same time, the filter structure is prone to clogging and requires frequent manual cleaning, resulting in high maintenance costs.

[0009] To address the shortcomings of existing billet flame cutting devices, such as inconvenient slag handling, poor low-temperature adaptability of the hydraulic system, water waste, and poor functional module coordination, this utility model proposes a billet flame cutting device that integrates slag conveying, hydraulic preheating, slag cooling, wastewater filtration, and synchronous linkage functions. Utility Model Content

[0010] In order to improve the problems of untimely slag disposal, unstable hydraulic system operation and serious water waste in existing billet flame cutting devices, this application provides a billet flame cutting device.

[0011] The billet flame cutting device provided in this application adopts the following technical solution:

[0012] A steel billet flame cutting device includes: a cutting equipment body; a protective window rotatably connected to the front side of the cutting equipment body; a central control system installed on the top of the cutting equipment body; a hydraulic lifting assembly installed inside the cutting equipment body; a cutting assembly installed at the output end of the hydraulic lifting assembly; a clamping assembly installed on the top of the cutting equipment body; a hydraulic storage tank installed in a mounting hole of the cutting equipment body; a slag-blowing high-pressure nozzle installed on the top of the cutting assembly; and a hydraulic pump installed at the output port of the hydraulic storage tank, with the output port of the hydraulic pump connected to the input port hose of the hydraulic lifting assembly.

[0013] The conveying device, located at the bottom of the cutting equipment body, is used for conveying the slag.

[0014] A preheating device, located at the bottom of the transmission device, is used to preheat the hydraulic storage tank;

[0015] A heat dissipation device is located on the right side of the transmission device and is used to cool down the high-temperature debris.

[0016] A filtration device, located at the bottom of the transmission device, is used to filter wastewater.

[0017] The first synchronous transmission mechanism is located on the right side of the heat dissipation device;

[0018] The second synchronous transmission mechanism is located on the left side of the transmission device.

[0019] Preferably, the transmission device includes a slag collection trough installed at the discharge port of the cutting equipment body. A transmission cylinder is connected to the output port of the slag collection trough. A filter sleeve is fitted inside the transmission cylinder, and a transmission spiral is fitted inside the filter sleeve. The transmission spiral is rotatably mounted in the mounting hole of the slag collection trough. A discharge one-way valve is installed at the output port of the filter sleeve. A first bevel gear is fixedly connected to the rear end of the extension shaft of the transmission spiral. Second bevel gears mesh on both sides of the first bevel gear. Rotating shafts are fixedly connected to both second bevel gears, and both rotating shafts are rotatably mounted in the mounting slot of the slag collection trough. A pull-out recycling box is installed at the output port of the discharge one-way valve, and the pull-out recycling box is installed on the top of the cutting equipment body.

[0020] Preferably, the preheating device includes a condensation module and a heat-conducting pipe. The output port and input port of the condensation module are fixedly connected to both ends of the heat-conducting pipe, the extension section of the heat-conducting pipe is located at the bottom of the slag collection tank, and the spiral section of the heat-conducting pipe is sleeved around the hydraulic storage tank.

[0021] Preferably, the heat dissipation device includes a dust cover, which is fixedly connected to the right side of the slag collection tank. A gear transmission is installed on the right side of the dust cover, and a fan blade is fixedly connected to the output shaft of the gear transmission.

[0022] Preferably, the filtration device includes a filter box and multiple guide sleeves. The output port of the transmission cylinder is fixedly connected to the input port of the filter box. The filter box is installed inside the cutting equipment body. A cam is rotatably provided inside the filter box. A sliding groove is fixedly connected to the inner wall of the filter box. A filter plate is slidably connected to the sliding groove. Multiple return springs are sleeved inside the multiple guide sleeves. The two ends of the multiple guide sleeves and multiple return springs are fixedly connected to the inner walls of the filter plate and the sliding groove, respectively. The cam abuts against the bottom of the filter plate. An output pump is installed at the output port of the filter box. The output pump is connected to the input port of the high-pressure slag blowing nozzle via a hose.

[0023] Preferably, the first synchronous transmission mechanism includes a first synchronous toothed belt, two rotating shafts and two second bevel gears symmetrically distributed around the longitudinal central axis of the first bevel gear, a first synchronous toothed pulley is fixedly connected to the right end of the rotating shaft on the right side, the first synchronous toothed pulley is connected to another first synchronous toothed pulley through the first synchronous toothed belt, and the other first synchronous toothed pulley is fixedly connected to the input shaft of the gear transmission.

[0024] Preferably, the second synchronous transmission mechanism includes a second synchronous toothed belt, a support frame is fixedly connected to the inner wall of the cutting equipment body, a rotating motor is installed on the top of the support frame, the output shaft of the rotating motor is fixedly connected to a second synchronous toothed pulley, the second synchronous toothed pulley is connected to another second synchronous toothed pulley through the second synchronous toothed belt, and the other second synchronous toothed pulley is fixedly connected to the left end of the cam.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. Collaborative crushing and waste heat recovery for energy saving and stability: The innovative use of a transmission spiral and bevel gear drive structure enables stable crushing, which, together with the filter sleeve, completes the initial separation of crushing and wastewater. At the same time, the waste heat from the crushing is used to preheat the hydraulic storage tank through a heat pipe, ensuring that the hydraulic oil operates at a suitable temperature without additional energy consumption. This improves the low-temperature adaptability and working stability of the hydraulic system, resulting in significant energy savings.

[0027] Multi-module synchronous linkage improves work efficiency: The first synchronous transmission mechanism realizes the synchronous operation of the transmission device and the heat dissipation device, and the second synchronous transmission mechanism drives the filtration device to vibrate and filter, reducing the number of independent drive mechanisms, simplifying the equipment structure and reducing energy consumption; the coordinated linkage of each module realizes the integrated operation of "cutting-slag collection-transmission-cooling-recycling" and "sewage filtration-recycling", which greatly improves the overall work efficiency.

[0028] Deep wastewater filtration and recycling is environmentally friendly and economical: The filtration device, which combines multi-layer composite filter plates with a vibration structure, achieves deep purification of wastewater; the filtered clean water is recycled for sludge removal, which greatly reduces water waste and meets environmental protection requirements; the vibration structure can effectively prevent filter plate clogging, reduce maintenance frequency, and lower maintenance costs.

[0029] This utility model effectively solves the core defects of existing steel billet flame cutting devices, such as inconvenient slag handling, unstable hydraulic system, water waste, and poor functional module coordination, through innovative synchronous linkage mechanism, waste heat recovery preheating structure, and sewage circulation filtration design. It realizes integrated operation of "high-efficiency cutting - slag recovery - waste heat utilization - sewage circulation". The equipment is stable in operation, energy-saving and environmentally friendly, and easy to maintain. It is suitable for flame cutting of various steel billets and has significant practical value and broad market promotion prospects. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure in Embodiment 1 of this application;

[0031] Figure 2 This is a schematic diagram of the internal structure in Embodiment 1 of this application;

[0032] Figure 3 This is a schematic diagram of the connection structure of the transmission device, preheating device, heat dissipation device, filtering device, first synchronous transmission mechanism and second synchronous transmission mechanism in Embodiment 1 of this application;

[0033] Figure 4 This is a schematic diagram of the filter device structure in Embodiment 1 of this application;

[0034] Figure 5 This is a schematic diagram of the connection structure of the dust cover, fan blades and gear transmission in Embodiment 1 of this application.

[0035] Reference numerals: 1. Cutting equipment body; 2. Protective window; 3. Pull-out recycling box; 4. Central control system; 5. Hydraulic lifting assembly; 6. High-pressure slag blowing nozzle; 7. Cutting assembly; 8. Condensation module; 9. Clamping assembly; 10. Slag collection trough; 11. Gear transmission; 12. First synchronous toothed pulley; 13. First synchronous toothed belt; 14. Heat conduction pipe; 15. Hydraulic pump; 16. First bevel gear; 17. Rotating shaft; 18. Second bevel gear; 19. Transmission screw; 20. Filter sleeve; 21. Transmission cylinder; 22. Discharge check valve; 23. Hydraulic storage tank; 24. Support frame; 25. Rotating motor; 26. Second synchronous toothed pulley; 27. Second synchronous toothed belt; 28. Output pump; 29. ​​Cam; 30. Sliding groove; 31. Filter box; 32. Filter plate; 33. Return spring; 34. Guide sleeve; 35. Fan blade; 36. Dust cover. Detailed Implementation

[0036] Example 1:

[0037] The following is in conjunction with the appendix Figures 1-5 The first embodiment of this application will be described in further detail.

[0038] A steel billet flame cutting device includes: a cutting equipment body 1; a protective window 2 rotatably connected to the front side of the cutting equipment body 1; a central control system 4 installed on the top of the cutting equipment body 1; a hydraulic lifting assembly 5 installed inside the cutting equipment body 1; a cutting assembly 7 installed at the output end of the hydraulic lifting assembly 5; a clamping assembly 9 installed on the top of the cutting equipment body 1; a hydraulic storage tank 23 installed in the mounting hole of the cutting equipment body 1; a slag blowing high-pressure nozzle 6 installed on the top of the cutting assembly 7; and a hydraulic pump 15 installed at the output port of the hydraulic storage tank 23, with the output port of the hydraulic pump 15 connected to the input port hose of the hydraulic lifting assembly 5.

[0039] A conveying device is located at the bottom of the cutting equipment body 1 and is used to convey the slag.

[0040] A preheating device is located at the bottom of the transmission device and is used to preheat the hydraulic storage tank 23.

[0041] A heat dissipation device is located on the right side of the transmission device and is used to cool down the high-temperature debris.

[0042] A filtration device, located at the bottom of the transmission device, is used to filter wastewater.

[0043] The first synchronous transmission mechanism is located on the right side of the heat dissipation device;

[0044] The second synchronous transmission mechanism is located on the left side of the transmission device.

[0045] In this embodiment, the transmission device includes a slag collection trough 10, which is installed at the discharge port of the cutting equipment body 1. The output port of the slag collection trough 10 is connected to a transmission cylinder 21. A filter sleeve 20 is sleeved inside the transmission cylinder 21, and a transmission spiral 19 is sleeved inside the filter sleeve 20. The transmission spiral 19 is rotatably mounted in the mounting hole of the slag collection trough 10. A discharge one-way valve 22 is installed at the output port of the filter sleeve 20. A first bevel gear 16 is fixedly connected to the rear end of the extension shaft of the transmission spiral 19. A second bevel gear 18 meshes with both sides of the first bevel gear 16. A rotating shaft 17 is fixedly connected to both second bevel gears 18. Both rotating shafts 17 are rotatably mounted in the mounting slot of the slag collection trough 10. A pull-out recycling box 3 is installed at the output port of the discharge one-way valve 22. The pull-out recycling box 3 is installed on the top of the cutting equipment body 1.

[0046] Specifically, the transmission spiral 19 is made of high-temperature alloy material and the surface is treated with a wear-resistant coating, which can withstand high temperature and avoid being worn by debris; the filter sleeve 20 has a filter hole diameter of 2-5mm, which can ensure smooth sewage penetration and prevent debris leakage; the pull-out recycling box 3 is made of stainless steel and is connected to the cutting equipment body 1 by a pull-out sliding connection, which facilitates quick cleaning and recycling of debris.

[0047] In this embodiment, the preheating device includes a condensation module 8 and a heat-conducting pipe 14. The output port and input port of the condensation module 8 are fixedly connected to the two ends of the heat-conducting pipe 14, respectively. The extension section of the heat-conducting pipe 14 is located at the bottom of the slag collection tank 10, and the spiral section of the heat-conducting pipe 14 is sleeved around the hydraulic storage tank 23.

[0048] Specifically, the heat pipe 14 is made of copper, which has a high thermal conductivity, and is filled with heat transfer oil as the heat transfer medium; the condensation module 8 has a built-in circulation pump that can drive the heat transfer oil to circulate in the circuit to ensure uniform heat transfer; through this structure, the hydraulic oil temperature can be stably maintained at 20-40℃, which can ensure the normal operation of the hydraulic system even in low-temperature environments.

[0049] In this embodiment, the heat dissipation device includes a dust cover 36, which is fixedly connected to the right side of the slag collection tank 10. A gear transmission 11 is installed on the right side of the dust cover 36, and a fan blade 35 is fixedly connected to the output shaft of the gear transmission 11.

[0050] Specifically, the gear transmission 11 can adjust the speed, and the fan blade 35 speed can be flexibly adjusted according to the temperature of the slag; the inner side of the dust cover 36 is equipped with high temperature resistant sound insulation cotton, which can reduce noise pollution and prevent the dust cover 36 from deforming due to high temperature.

[0051] In this embodiment, the filtration device includes a filter box 31 and multiple guide sleeves 34. The output port of the transmission cylinder 21 is fixedly connected to the input port of the filter box 31. The filter box 31 is installed inside the cutting equipment body 1. A cam 29 is rotatably provided inside the filter box 31. A sliding groove 30 is fixedly connected to the inner wall of the filter box 31. A filter plate 32 is slidably connected to the sliding groove 30. Multiple return springs 33 are sleeved inside the multiple guide sleeves 34. The two ends of the multiple guide sleeves 34 and the multiple return springs 33 are fixedly connected to the inner walls of the filter plate 32 and the sliding groove 30, respectively. The cam 29 abuts against the bottom of the filter plate 32. An output pump 28 is installed at the output port of the filter box 31. The output pump 28 is connected to the input port of the slag blowing high-pressure nozzle 6 via a hose.

[0052] Specifically, the coarse filter screen has a pore size of 1-2mm and is used to filter large particulate impurities in wastewater; the precision filter screen has a pore size of 0.1-0.5mm and can filter fine suspended particles; through the rotation of the cam 29 and the elastic action of the return spring 33, the filter plate 32 can be driven to vibrate back and forth, effectively preventing the filter layer from clogging and improving the filtration efficiency.

[0053] In this embodiment, the first synchronous transmission mechanism includes a first synchronous toothed belt 13, two rotating shafts 17 and two second bevel gears 18 symmetrically distributed around the longitudinal central axis of the first bevel gear 16. The right end of the rotating shaft 17 on the right side is fixedly connected to a first synchronous toothed pulley 12. The first synchronous toothed pulley 12 is connected to another first synchronous toothed pulley 12 through the first synchronous toothed belt 13. The other first synchronous toothed pulley 12 is fixedly connected to the input shaft of the gear transmission 11.

[0054] In this embodiment, the second synchronous transmission mechanism includes a second synchronous toothed belt 27. A support frame 24 is fixedly connected to the inner wall of the cutting equipment body 1. A rotating motor 25 is installed on the top of the support frame 24. The output shaft of the rotating motor 25 is fixedly connected to a second synchronous toothed pulley 26. The second synchronous toothed pulley 26 is connected to another second synchronous toothed pulley 26 through the second synchronous toothed belt 27. The other second synchronous toothed pulley 26 is fixedly connected to the left end of the cam 29.

[0055] The implementation principle of a steel billet flame cutting device according to an embodiment of this application is as follows: 1. Equipment start-up and steel billet fixing: The device is started by the central control system 4, the steel billet to be cut is placed on the top of the cutting equipment body 1, and the clamping component 9 is controlled to move to firmly clamp and fix the steel billet to prevent the steel billet from shifting during the cutting process; at the same time, the condensation module 8 is started to drive the heat transfer oil in the heat transfer pipe 14 to circulate, preheat the hydraulic oil in the hydraulic storage tank 23 in advance, and ensure that the hydraulic system is in the best working state.

[0056] 2. Steel billet cutting and slag collection: During cutting, the central control system 4 controls the hydraulic pump 15 to start. The hydraulic pump 15 delivers the hydraulic oil in the hydraulic storage tank 23 to the hydraulic lifting assembly 5, which drives the hydraulic lifting assembly 5 to lower the cutting assembly 7 to a suitable cutting height. The cutting assembly 7 starts to perform flame cutting on the steel billet. At the same time, the high-pressure slag blowing nozzle 6 sprays high-pressure gas to blow the slag generated during cutting into the slag collection tank 10. The wastewater cooling water generated during the cutting process flows into the slag collection tank 10 together with the slag mixture.

[0057] 3. Slag Transfer and Waste Heat Utilization: The rotating motor 25 is started, and the rotating motor 25 drives the cam 29 to rotate via the second synchronous toothed pulley 26 and the second synchronous toothed belt 27. Simultaneously, one of the rotating shafts 17 is driven to rotate by external power or by the rotating motor 25 through an additional transmission component. The rotating shaft 17 drives the second bevel gear 18 to rotate, and the second bevel gear 18 drives the meshing first bevel gear 16 to rotate, thereby driving the transmission screw 19 to rotate within the filter sleeve 20. When the transmission screw 19 rotates, it pushes the mixture of slag and sewage in the slag collection tank 10 towards the output end of the filter sleeve 20. The sewage permeates through the filter holes of the filter sleeve 20 to the bottom of the transmission cylinder 21, and then flows into the filter box 31 through the pipe. During the transfer process, the waste heat carried by the slag is transferred to the heat-conducting pipe 14 at the bottom through the slag collection tank 10. The heat-conducting oil in the heat-conducting pipe 14 absorbs the heat and circulates to the periphery of the hydraulic storage tank 23 to continuously preheat the hydraulic oil, thus realizing waste heat recovery and utilization.

[0058] 4. Slag Cooling and Recycling: While the rotating shaft 17 rotates, the right-side rotating shaft 17 drives the input shaft of the gear transmission 11 to rotate through the first synchronous toothed pulley 12 and the first synchronous toothed belt 13. After the speed is adjusted by the gear transmission 11, the fan blade 35 is driven to rotate at high speed inside the dust cover 36, generating cold air. When the slag is transported to the output end of the filter sleeve 20, the cold air blown out by the fan blade 35 quickly cools the high-temperature slag. The cooled slag falls into the pull-out recycling box 3 through the discharge check valve 22, completing the collection and recycling of the slag. The discharge check valve 22 can effectively prevent the slag from flowing back under the action of wind.

[0059] 5. Wastewater Filtration and Recycling: Wastewater flowing into the filter box 31 falls onto the filter plate 32. The cam 29 rotates continuously, and its edge periodically abuts against the bottom of the filter plate 32, pushing the filter plate 32 to one side along the sliding groove 30 and compressing the return spring 33. When the protruding part of the cam 29 disengages from the filter plate 32, the return spring 33 resets, driving the filter plate 32 to move in the opposite direction, realizing the left-right reciprocating vibration of the filter plate 32. During the vibration process, the wastewater passes through the coarse filter screen, activated carbon filter layer and precision filter screen of the filter plate 32 in sequence, removing large particulate impurities, odors and fine suspended particles in sequence, completing the deep filtration of wastewater. The central control system 4 monitors the liquid level in the filter box 31 through the liquid level sensor. When the liquid level reaches the preset value, it controls the output pump 28 to start, and delivers the filtered clean water to the slag blowing high-pressure nozzle 6 through the hose, realizing the recycling of water resources and reducing water consumption.

[0060] Example 2:

[0061] The difference between this embodiment and Embodiment 1 is that a rubber scraper is fixedly connected to the transmission spiral 19, and the filter sleeve 20 is cleaned by the rubber scraper.

[0062] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A steel billet flame cutting device, comprising: The cutting equipment body (1) and the protective window (2) are rotatably connected to the front side of the cutting equipment body (1). The central control system (4) is installed on the top of the cutting equipment body (1); the hydraulic lifting assembly (5) is installed inside the cutting equipment body (1); the cutting assembly (7) is installed at the output end of the hydraulic lifting assembly (5); the clamping assembly (9) is installed on the top of the cutting equipment body (1); the hydraulic storage tank (23) is installed in the mounting hole of the cutting equipment body (1); the slag blowing high-pressure nozzle (6) is installed on the top of the cutting assembly (7); the hydraulic pump (15) is installed at the output port of the hydraulic storage tank (23), and the output port of the hydraulic pump (15) is connected to the input port hose of the hydraulic lifting assembly (5); characterized in that: A conveying device is located at the bottom of the cutting equipment body (1) and is used to convey the slag. A preheating device is located at the bottom of the transmission device and is used to preheat the hydraulic storage tank (23); A heat dissipation device is located on the right side of the transmission device and is used to cool down the high-temperature debris. A filtration device, located at the bottom of the transmission device, is used to filter wastewater. The first synchronous transmission mechanism is located on the right side of the heat dissipation device; The second synchronous transmission mechanism is located on the left side of the transmission device.

2. The billet flame cutting device according to claim 1, characterized in that: The transmission device includes a slag collection trough (10), which is installed at the discharge port of the cutting equipment body (1). The output port of the slag collection trough (10) is connected to a transmission cylinder (21). A filter sleeve (20) is fitted inside the transmission cylinder (21), and a transmission spiral (19) is fitted inside the filter sleeve (20). The transmission spiral (19) is rotatably mounted in the mounting hole of the slag collection trough (10). A discharge check valve (22) is installed at the output port of the filter sleeve (20). The rear end of the extension shaft of the transmission spiral (19) is fixedly connected to a first bevel gear (16), and the two sides of the first bevel gear (16) are meshed with second bevel gears (18). The two second bevel gears (18) are fixedly connected to rotating shafts (17), and the two rotating shafts (17) are rotatably mounted on the mounting groove of the slag collection tank (10). The output port of the discharge check valve (22) is equipped with a pull-out recycling box (3), and the pull-out recycling box (3) is installed on the top of the cutting equipment body (1).

3. The billet flame cutting device according to claim 2, characterized in that: The preheating device includes a condensation module (8) and a heat-conducting pipe (14). The output port and input port of the condensation module (8) are fixedly connected to the two ends of the heat-conducting pipe (14), the extension section of the heat-conducting pipe (14) is located at the bottom of the slag collection tank (10), and the spiral section of the heat-conducting pipe (14) is sleeved around the hydraulic storage tank (23).

4. The billet flame cutting device according to claim 3, characterized in that: The heat dissipation device includes a dust cover (36), which is fixedly connected to the right side of the slag collection tank (10). A gear transmission (11) is installed on the right side of the dust cover (36), and a fan blade (35) is fixedly connected to the output shaft of the gear transmission (11).

5. A steel billet flame cutting device according to claim 4, characterized in that: The filtration device includes a filter box (31) and multiple guide sleeves (34). The output port of the transmission cylinder (21) is fixedly connected to the input port of the filter box (31). The filter box (31) is installed inside the cutting equipment body (1). A cam (29) is rotatably provided inside the filter box (31). A sliding groove (30) is fixedly connected to the inner wall of the filter box (31). A filter plate (32) is slidably connected to the sliding groove (30). Multiple return springs (33) are sleeved inside the multiple guide sleeves (34). The two ends of the multiple guide sleeves (34) and the multiple return springs (33) are fixedly connected to the inner walls of the filter plate (32) and the sliding groove (30), respectively. The cam (29) abuts against the bottom of the filter plate (32). An output pump (28) is installed at the output port of the filter box (31). The output pump (28) is connected to the input port of the slag blowing high-pressure nozzle (6) by a hose.

6. The billet flame cutting device according to claim 5, characterized in that: The first synchronous transmission mechanism includes a first synchronous toothed belt (13), two rotating shafts (17) and two second bevel gears (18) symmetrically distributed around the longitudinal central axis of the first bevel gear (16). The right end of the rotating shaft (17) on the right side is fixedly connected to a first synchronous toothed pulley (12). The first synchronous toothed pulley (12) is connected to another first synchronous toothed pulley (12) through the first synchronous toothed belt (13). The other first synchronous toothed pulley (12) is fixedly connected to the input shaft of the gear transmission (11).

7. A steel billet flame cutting device according to claim 5, characterized in that: The second synchronous transmission mechanism includes a second synchronous toothed belt (27). A support frame (24) is fixedly connected to the inner wall of the cutting equipment body (1). A rotating motor (25) is installed on the top of the support frame (24). The output shaft of the rotating motor (25) is fixedly connected to a second synchronous toothed pulley (26). The second synchronous toothed pulley (26) is connected to another second synchronous toothed pulley (26) through the second synchronous toothed belt (27). The other second synchronous toothed pulley (26) is fixedly connected to the left end of the cam (29).

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