Energy-saving multifunctional casting blank flame cleaning device

Abstract

The application discloses an energy-saving multifunctional casting blank flame cleaning device, wherein fixed end pistons and floating end pistons are additionally arranged in the cleaning oxygen cavity of the upper and lower horizontal distributor piston cylinder assembly, the cleaning oxygen cavity is divided into three chambers, i.e., a fixed end chamber, an intermediate use chamber and a floating end chamber, the casting blank cross section is divided into eight optional cleaning areas, PID adjustment is performed on the other eight cleaning areas by using independent valve stations, multifunctional combination of the eight optional cleaning areas is realized, the surface defects of the casting blank can be cleaned in a fixed area and a fixed depth, unnecessary area cleaning is reduced, metal loss is reduced, the yield of finished products is increased, cost reduction and benefit increase are achieved, and the energy consumption is reduced. For hot blank, oxygen pressure of the relatively low temperature area at the edge, such as the top fixed end, the top floating end, the bottom fixed end and the bottom floating end, is increased to obtain a target cleaning depth, improve the hot blank hot delivery rate, reduce the energy consumption and help green metallurgy.

Description

Technical Field

[0001] This invention relates to the field of metallurgical technology, specifically to an energy-saving, multi-functional flame cleaning device for cast billets. Background Technology

[0002] The working principle of a flame cleaning machine is to use a combustion flame to preheat the head area of ​​the cast billet, forming a preheated molten pool on its surface. The billet then passes under a stream of cleaning oxygen injected from the burner at a set speed. Because the cleaning oxygen stream forms an acute angle with the billet, the oxygen reacts violently with the surface metal, propelling the molten pool forward, thereby removing the surface layer of the billet and its contained defects such as oxide scale, cracks, pitting, cavities, inclusions, and bubbles. The oxide slag on the cleaned surface layer is granulated and removed under high-pressure water, resulting in a smooth, defect-free surface on the cleaned billet, significantly improving surface quality.

[0003] Flame cleaning of billets involves controlling the cleaning speed under stable oxygen pressure to achieve different cleaning depths. The flame cleaning process is a strong oxidation reaction occurring at high temperatures in molten steel; the higher the temperature of the billet to be cleaned, the easier the reaction. For the same steel grade and the same target cleaning depth, the cleaning speed for hot billets is obviously higher than for cold billets. Flame cleaning machines have high efficiency in hot cleaning; if 100% "hot cleaning and hot delivery" of billets could be achieved, the energy saved in the subsequent heating process would be immeasurable. The cooling rate of the edges of hot billets is faster than that of the middle section, resulting in lower edge temperatures and higher middle temperatures. Existing flame cleaning machines can only operate the edges and middle sections under the same oxygen pressure, resulting in a crescent-shaped billet with shallow edges and a deep middle. However, billets have more defects at the edges; if the middle section is cleaned deeply to ensure the edge cleaning depth, it will increase metal loss.

[0004] In addition, existing flame cleaning machines remove a 1.5-4mm metal layer from all four surfaces of the cast billet simultaneously. While this significantly improves the surface quality of the billet, it also results in considerable metal loss. This method is often used for high-value-added products such as automotive and appliance panels. Some mid-to-low-end products, however, do not have high surface quality requirements and only require cleaning to a fixed depth in specific defective areas.

[0005] Therefore, it is necessary to develop an energy-saving, multi-functional flame cleaning device for cast billets to meet the needs of deep edge cleaning and fixed-area, fixed-depth cleaning, thus contributing to "green metallurgy". Summary of the Invention

[0006] To address the problems in related technologies, this invention discloses an energy-saving, multi-functional flame cleaning device for cast billets, which meets the needs of deep edge cleaning and fixed-area, fixed-depth cleaning.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] An energy-saving multi-functional billet flame cleaning device includes an upper floating beam and a lower floating beam. The upper floating beam is vertically raised and lowered by two upper vertical cylinders on the left and right sides, and the lower floating beam is vertically raised and lowered by two lower vertical cylinders on the left and right sides.

[0009] The upper floating beam is provided with an upper horizontal slider, and a horizontal cylinder is installed on the upper part of the upper horizontal slider. The cylinder head of the horizontal cylinder is fixed to the right side of the upper floating beam. The lower part of the upper horizontal slider is provided with an upper horizontal distributor piston cylinder assembly, and a smooth burner is provided at the lower part of the upper horizontal distributor piston cylinder assembly. The left side of the upper horizontal distributor piston cylinder assembly of the upper horizontal slider is provided with an upper side slider that can move up and down. The upper side slider is driven by an upper side cylinder. The upper side slider is equipped with an upper side distributor and a smooth burner from left to right.

[0010] The lower floating beam is equipped with a lower horizontal slider, and a lower horizontal cylinder is installed at the lower part of the lower horizontal slider to drive it. The cylinder head of the lower horizontal cylinder is fixed to the left side of the lower floating beam. A lower horizontal distributor piston cylinder assembly is provided at the upper part of the lower horizontal distributor piston cylinder assembly, and a smooth burner is provided at the upper part of the lower horizontal distributor piston cylinder assembly. A lower side slider that can move up and down is provided on the right side of the lower horizontal distributor piston cylinder assembly of the lower horizontal slider. The lower side slider is driven by a lower side cylinder, and a lower side distributor and a smooth burner are installed sequentially from right to left on the lower side slider.

[0011] Locking cylinders are installed on the cylinder rods of the upper vertical cylinder, lower vertical cylinder, upper horizontal cylinder, and lower horizontal cylinder.

[0012] The upper and lower horizontal distributor piston cylinder assemblies include a distributor body and a piston cylinder. The distributor body has four rows of evenly distributed through holes from left to right on its mounting surface with the smooth burner: a gas cleaning hole, an oxygen cleaning hole, a preheating gas hole, and a preheating oxygen hole. These holes communicate with the gas cleaning chamber, oxygen cleaning chamber, preheating gas chamber, and preheating oxygen chamber, respectively. Two cooling water inlet chambers are located on the left side of the gas cleaning chamber of the distributor body. Cooling water return chambers are located on both sides of the preheating oxygen hole above the preheating oxygen chamber. The evenly distributed through holes in these chambers are connected to the water inlet of the smooth burner. One end of each through hole in the gas cleaning chamber, oxygen cleaning chamber, preheating gas chamber, and preheating oxygen chamber is sealed and fixed with a flange, and the other end is connected to the piston cylinder flange.

[0013] As a further aspect of the present invention: a slide rail is installed on the inner wall of the piston cylinder shell, and a four-wheel slide rail trolley is provided on the slide rail. A fixed length rod is provided on the four-wheel slide rail trolley and extends out from the waist hole on the outer shell of the cylinder. One end of the upper horizontal fixed length rod and the lower horizontal fixed length rod are respectively fixed on the lower floating beam and the upper floating beam, and the other end passes through the fixed length rod limiter.

[0014] As a further aspect of the present invention: a gas cleaning piston, a floating end piston, a gas preheating piston, and a oxygen preheating piston are respectively provided at corresponding positions inside the piston cylinder, which are concentric with the gas cleaning chamber, the oxygen cleaning chamber, the gas preheating chamber, and the oxygen preheating chamber, and the top ends of the gas cleaning piston, the gas preheating piston, and the oxygen preheating piston are flush with the outer end face of the top of the floating end piston.

[0015] As a further aspect of the present invention: oxygen holes are evenly distributed on the floating end piston, the interior of the floating end piston is a cavity, and the floating end piston is connected to the floating end oxygen inlet pipe.

[0016] As a further embodiment of the present invention: the cleaning oxygen chamber is provided with a fixed end piston on the flange sealing and fixing side, the cleaning oxygen chamber is divided into three chambers: a fixed end, an intermediate use section, and a floating end, and the distributor body is provided with a fixed end oxygen inlet and an intermediate use section oxygen inlet respectively.

[0017] As a further aspect of the present invention: the fixed end, the intermediate use section, the floating end, and other areas are all controlled by independent valve groups using PID control.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. Locking cylinders are installed on the upper vertical cylinder, lower vertical cylinder, upper horizontal cylinder, and lower horizontal cylinder. The advantage of this design is that the locking cylinders can be set with a positioning distance, which is the gap between the smooth burner and the billet surface after the burner retracts. This gap eliminates the friction between the smooth burner and the billet surface. During the burner closing actions (vertical closure → vertical positioning → horizontal closure → horizontal positioning → side closure), the locking cylinder grips the cylinder lever during "vertical positioning," and the cylinder exerts force in the opposite direction towards the billet surface. The smooth burner maintains a "positioning distance" gap with the billet surface, allowing for smooth horizontal closure. Similarly, the horizontal positioning distance ensures side closure. Adjusting the positioning distance ensures the outer flame of the preheating flame is precisely on the billet surface, resulting in high thermal efficiency, good preheating effect, shorter preheating time, and energy savings.

[0020] 2. The inner wall of the piston cylinder shell is equipped with a slide rail, and a four-wheel slide rail trolley is mounted on the slide rail. The length-limiting rod on the four-wheel slide rail trolley extends out from the waist hole on the outer shell of the cylinder. One end of the upper horizontal length-limiting rod and the lower horizontal length-limiting rod are fixed to the lower floating beam and the upper floating beam, respectively, and the other end passes through the length-limiting rod. The ends of the clean gas piston, preheating gas piston, and preheating oxygen piston are flush with the outer end face of the floating end piston. When the horizontal closing action occurs, the length-limiting rod pushes the four-wheel slide rail trolley to move the piston towards the side of the billet. When the horizontal closing is in place, the ends of the clean gas piston, preheating gas piston, and preheating oxygen piston, as well as the outer end face of the floating end piston, are flush with the side of the billet to determine the position of the billet edge. In addition, the gas cleaning piston, floating end piston, preheating gas piston, and preheating oxygen piston of the piston cylinder are concentric with the gas cleaning chamber, the oxygen cleaning chamber, the preheating gas chamber, and the preheating oxygen chamber, respectively. The four-wheel slide rail trolley moves directionally along the slide rail, which reduces the friction between the piston seal and the distributor body, and increases the safety and service life of the upper horizontal distributor piston cylinder assembly and the lower horizontal distributor piston cylinder assembly.

[0021] 3. A fixed-end piston is added to the oxygen cleaning chamber on the sealed and fixed side of the distributor body, and a floating-end piston is added to the piston cylinder. The two pistons divide the oxygen cleaning chamber into three chambers: a fixed end, an intermediate use section, and a floating end. When the smooth burner completes its operation, the top and bottom surfaces of the billet are divided into a top fixed end, a top intermediate use section, a top floating end, a bottom fixed end, a bottom intermediate use section, and a bottom floating end. Combined with the originally independent upper and lower surfaces, the billet cross-section is divided into eight selectable cleaning areas. The billet cleaning areas can be any combination of these eight selectable cleaning areas. Because the fixed end, intermediate use section, floating end, and other areas all use independent valve groups for PID control, and the pressure is set separately, if a greater cleaning depth is required, the area can be set to a high cleaning pressure. This increases the amount of oxygen participating in the reaction, increases the amount of defective surface layers removed, and greatly improves the quality of the billet.

[0022] This energy-saving, multi-functional billet flame cleaning device offers a billet cleaning solution with any combination of eight selectable cleaning zones. It can achieve targeted cleaning of surface defects at specific areas and depths, reducing unnecessary cleaning, minimizing metal loss, increasing finished product output, and achieving cost reduction and efficiency improvement. For hot billets, by increasing the oxygen pressure in the relatively low-temperature areas at the top fixed end, top floating end, bottom fixed end, and bottom floating end, the target cleaning depth is achieved, improving the "hot billet hot delivery rate," reducing energy consumption, and contributing to "green metallurgy." Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0024] In the attached diagram:

[0025] Figure 1 This is a schematic diagram of the structure of an energy-saving multifunctional billet flame cleaning device of the present invention.

[0026] 1. Upper vertical cylinder; 2. Lower vertical cylinder; 3. Cylinder brake; 4. Upper side cylinder; 5. Upper side slider; 6. Upper side distributor; 7. Upper horizontal cylinder; 8. Upper floating beam; 9. Upper horizontal slider; 10. Upper horizontal distributor piston cylinder assembly; 11. Lower horizontal distributor piston cylinder assembly; 12. Upper horizontal fixed rod; 13. Smooth burner; 14. Lower side slider; 15. Lower side cylinder; 16. Lower side distributor; 17. Lower horizontal cylinder; 18. Lower floating beam; 19. Lower horizontal slider; 20. Lower horizontal fixed rod.

[0027] Figure 2 This is a partial cross-sectional view of the oxygen cleaning chamber of the upper horizontal distributor piston cylinder assembly of an energy-saving multifunctional billet flame cleaning device of the present invention.

[0028] 101. Distributor body; 102. Piston cylinder; 103. Fixed end piston; 104. Connecting rod; 105. Fixed end oxygen inlet; 106. Fixed end; 107. Intermediate use section oxygen inlet; 108. Intermediate use section; 109. Oxygen port; 110. Floating end; 111. Cylinder shell; 112. Floating end oxygen inlet pipe; 113. Slide rail; 114. Four-wheel slide rail trolley; 115. Flange.

[0029] Figure 3 This is a cross-sectional view (AA) of the distributor body of an energy-saving multifunctional billet flame cleaning device according to the present invention.

[0030] 201. Clean the gas chamber; 202. Clean the oxygen chamber; 203. Preheat the gas chamber; 204. Preheat the oxygen chamber; 205. Cooling water inlet chamber; 206. Cooling water return chamber; 207. Mounting surface; 208. Clean the gas port; 209. Clean the oxygen port; 210. Preheat the gas port; 211. Preheat the oxygen port;

[0031] Figure 4 This is a structural diagram of the piston cylinder of an energy-saving multifunctional billet flame cleaning device according to the present invention.

[0032] 301. Cleaning the gas piston; 302. Floating end piston; 303. Preheating the gas piston; 304. Preheating the oxygen piston; 305. Length rod limit; 306. Outer end face; 307. Piston cylinder flange; 308. Waist hole; 309. End; Detailed Implementation

[0033] To further understand the content, features, and effects of this invention, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings:

[0034] like Figure 1-4 As shown:

[0035] The energy-saving multi-functional billet flame cleaning device is divided into two main parts: an upper floating beam 8 and a lower floating beam 18. They are vertically raised and lowered by two upper vertical cylinders 1 and lower vertical cylinders 2 on the left and right sides, respectively.

[0036] An upper horizontal slider 9 is provided on the upper floating beam 8. A horizontal cylinder 7 is installed on the upper part of the upper horizontal slider 9, and the cylinder head is fixed on the right side of the upper floating beam 8. An upper horizontal distributor piston cylinder assembly 10 is provided at the lower part of the upper horizontal slider 9, and a smooth burner 13 is provided at the lower part of the upper horizontal distributor piston cylinder assembly 10. An upper side slider 5 that can move up and down is provided on the left side of the upper horizontal distributor piston cylinder assembly 10. The upper side slider 5 is driven by an upper side cylinder 4. An upper side distributor 6 and a smooth burner 13 are installed from left to right.

[0037] Similarly, a lower horizontal slider 19 is provided on the lower floating beam 18. A lower horizontal cylinder 17 is installed at the lower part of the lower horizontal slider 19 for driving. The cylinder head is fixed to the left side of the lower floating beam 18. A lower horizontal distributor piston cylinder assembly 11 is provided at the upper part of the lower horizontal slider 19, and a smooth burner 13 is provided at the upper part of the lower horizontal distributor piston cylinder assembly 11. A lower side slider 14 that can move up and down is provided on the right side of the lower horizontal distributor piston cylinder assembly 11. The lower side slider 14 is driven by a lower side cylinder 15. A lower side distributor 16 and a smooth burner 13 are installed sequentially from right to left.

[0038] Locking cylinders 3 are installed on the cylinder rods of the upper vertical cylinder 1, the lower vertical cylinder 2, the upper horizontal cylinder 7, and the lower horizontal cylinder 17.

[0039] The upper horizontal distributor piston cylinder assembly 10 and the lower horizontal distributor piston cylinder assembly 11 are composed of two main parts: the distributor body 101 and the piston cylinder 102. The distributor body 101 has four rows of evenly distributed through holes from left to right on its mounting surface 207 with the smooth burner 13: a gas cleaning hole 208, an oxygen cleaning hole 209, a gas preheating hole 210, and a gas preheating hole 211. These through holes communicate with the gas cleaning chamber 201, the oxygen cleaning chamber 202, the gas preheating chamber 203, and the gas preheating chamber 204, respectively. A dual cooling water inlet chamber 205 is located on the left side of the gas cleaning chamber 201 in the distributor body 101. Cooling water return chambers 206 are located on both sides of the gas preheating hole 211 above the gas preheating chamber 204. The evenly distributed through holes in these chambers connect to the nozzles of the smooth burner 13. Clean the gas chamber 201, clean the oxygen chamber 202, preheat the gas chamber 203, and preheat the oxygen chamber 204. One end of the through hole is sealed and fixed with flange 115, and the other end is connected to piston cylinder flange 307.

[0040] The piston cylinder 102 has a slide rail 113 mounted on the inner wall of the outer shell 111. A four-wheel slide rail trolley 114 is mounted on the slide rail 113, and the fixed length rod limit 305 on the four-wheel slide rail trolley 114 extends out from the waist hole 308 on the outer shell 111. One end of the upper horizontal fixed length rod 12 and the lower horizontal fixed length rod 20 are fixed to the lower floating beam 18 and the upper floating beam 8, respectively, and the other end passes through the fixed length rod limit 305.

[0041] The gas cleaning piston 301, floating end piston 302, preheating gas piston 303, and preheating oxygen piston 304 of piston cylinder 102 are concentric with the gas cleaning chamber 201, the oxygen cleaning chamber 202, the preheating gas chamber 203, and the preheating oxygen chamber 204, respectively. The ends 309 of the gas cleaning piston 301, the preheating gas piston 303, and the preheating oxygen piston 304 are flush with the outer end face 306 of the floating end piston 302.

[0042] Oxygen holes 109 are evenly distributed on the floating end piston 302. The interior of the oxygen piston 302 is a cavity and is connected to the floating end oxygen inlet pipe 112.

[0043] A fixed-end piston 103 is added to the sealing and fixing side of the upper flange 115 of the cleaning oxygen chamber 202, and the cleaning oxygen chamber 302 is divided into three chambers: a fixed end 106, an intermediate use section 108, and a floating end 110. Correspondingly, the distributor body 101 is equipped with a fixed-end oxygen inlet 105 and an intermediate use section oxygen inlet 107.

[0044] The fixed end 106, the intermediate use section 108, the floating end 110 and other areas all use independent valve groups for PID control.

[0045] In practical applications:

[0046] The operation of the energy-saving multi-functional billet flame cleaning device is divided into two main steps: Step 1, the smooth burner 13 automatically determines the length of the billet and sequentially performs vertical closure → vertical positioning → horizontal closure → horizontal positioning → side positioning; Step 2, preheating activation, the smooth burner 13 burns a preheated molten pool on the surface of the billet, enters the cleaning cycle, sprays high-pressure cleaning oxygen, the billet starts, the smooth burner 13 is once again attached to the surface of the billet until the cleaning is completed.

[0047] When the energy-saving multi-functional billet flame cleaning device is in the cleaning position, the billet head enters the device, and the billet extends 200-300mm beyond the smooth burner 13. First, vertical closure occurs. The upper vertical cylinder 1 exhausts air, causing the upper floating beam 8 to slowly descend, while the lower vertical cylinder 2 drives the lower floating beam to rise until the smooth burner 13 is in contact with the upper and lower surfaces of the billet. For vertical positioning, the locking cylinder 3 clamps the cylinder rods of the upper vertical cylinder 1 and the lower vertical cylinder 2, causing the cylinders to move in the opposite direction by 12.5mm. For horizontal closure, the upper horizontal cylinder 7 drives the upper horizontal slider 9, and the lower horizontal cylinder 17 drives the lower horizontal slider 19 until the smooth burner 13 is in contact with the side of the billet. Because the inner wall of the piston cylinder 102 is equipped with a slide rail 113, and a four-wheel slide rail trolley 114 is provided on the slide rail 113, and the fixed length rod limiter 305 on the four-wheel slide rail trolley 114 extends out from the waist hole 308 on the cylinder outer shell 111. One end of the upper horizontal fixed length rod 12 and the lower horizontal fixed length rod 20 are fixed to the lower floating beam 18 and the upper floating beam 8, respectively, and the other end passes through the fixed length rod limiter. The end 309 of the cleaning gas piston 301, the preheating gas piston 303, and the preheating oxygen piston 304 are flush with the outer end face 306 of the floating end piston 302. When the horizontal closing action occurs, the fixed-length rod pushes the four-wheel slide rail trolley to move the piston towards the side of the billet. When the horizontal closing is in place, the ends 309 of the cleaning gas piston 301, preheating gas piston 303, and preheating oxygen piston 304, and the outer end face 306 of the floating end piston 302 are flush with the side of the billet, determining the position of the billet edge. In addition, the cleaning gas piston 301, floating end piston 302, preheating gas piston 303, and preheating oxygen piston 304 of the piston cylinder 102 are concentric with the cleaning gas chamber 201, cleaning oxygen chamber 202, preheating gas chamber 203, and preheating oxygen chamber 204, respectively. The four-wheel slide rail trolley 114 moves directionally along the slide rail 113, reducing the friction between the piston seal and the distributor body 101, increasing the safety and service life of the upper and lower horizontal distributor piston cylinder assemblies. For horizontal positioning, the locking cylinder 3 clamps the cylinder rods of the upper horizontal cylinder 7 and the lower horizontal cylinder 17, and the cylinders move in the opposite direction by 12.5mm. Side positioning, lower side cylinder 15 drives lower side slider 14 to extend, upper side slider 5 falls by its own weight, and smooth burner 13 completely covers the cleaning section.

[0048] The billet is retracted a certain distance to reduce the distance of the head preheating pit, activate preheating, and the smooth burner 13 burns a preheated molten pool on the surface of the billet, entering the cleaning cycle. High-pressure cleaning oxygen is injected, the slab starts, and the smooth burner 13 is once again attached to the surface of the slab until the cleaning is completed.

[0049] The added fixed-end piston 103 and floating-end piston 302 divide the oxygen cleaning chamber 202 into three chambers: a fixed end 106, a middle working section 108, and a floating end 110. Each of the three chambers and other areas uses an independent valve group for PID regulation, with pressure set individually. If a greater cleaning depth is required, the area can be set to a higher cleaning pressure. This energy-saving, multi-functional billet flame cleaning device allows for the selection of eight cleaning areas—the top fixed end, top movable end, top floating end, bottom fixed end, bottom movable end, upper side of the bottom floating end, and lower side—according to production needs. This enables fixed-area, fixed-depth cleaning of the billet surface, removing defective surface layers and significantly improving billet quality.

[0050] Finally, it should be noted that the above disclosure is merely a preferred embodiment of this application and is not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application. The scope of this application is limited only by the appended claims.

Claims

1. An energy-saving, multi-functional flame cleaning device for cast billets, characterized in that: It includes an upper floating beam (8) and a lower floating beam (18). The upper floating beam (8) is vertically raised and lowered by two upper vertical cylinders (1) on the left and right sides, and the lower floating beam (18) is vertically raised and lowered by two lower vertical cylinders (2) on the left and right sides. The upper floating beam (8) is provided with an upper horizontal slider (9), and an upper horizontal cylinder (7) is installed on the upper part of the upper horizontal slider (9). The cylinder head of the upper horizontal cylinder (7) is fixed to the right side of the upper floating beam (8). The lower part of the upper horizontal slider (9) is provided with an upper horizontal distributor piston cylinder assembly (10), and the lower part of the upper horizontal distributor piston cylinder assembly (10) is provided with a smooth burner (13). The upper horizontal distributor piston cylinder assembly (10) of the upper horizontal slider (9) is provided with an upper side slider (5) that can move up and down on the left side. The upper side slider (5) is driven by an upper side cylinder (4). The upper side slider (5) is provided with an upper side distributor (6) and a smooth burner (13) from left to right. The lower floating beam (18) is provided with a lower horizontal slider (19), and a lower horizontal cylinder (17) is installed at the lower part of the lower horizontal slider (19) for driving. The cylinder head of the lower horizontal cylinder (17) is fixed to the left side of the lower floating beam (18). A lower horizontal distributor piston cylinder assembly (11) is provided at the upper part of the lower horizontal slider (19), and a smooth burner (13) is provided at the upper part of the lower horizontal distributor piston cylinder assembly (11). A lower side slider (14) that can move up and down is provided on the right side of the lower horizontal distributor piston cylinder assembly (11) of the lower horizontal slider (19). The lower side slider (14) is driven by a lower side cylinder (15). A lower side distributor (16) and a smooth burner (13) are installed on the lower side slider (14) from right to left. Locking cylinders (3) are installed on the cylinder rods of the upper vertical cylinder (1), lower vertical cylinder (2), upper horizontal cylinder (7), and lower horizontal cylinder (17); The upper horizontal distributor piston cylinder assembly (10) and the lower horizontal distributor piston cylinder assembly (11) include a distributor body (101) and a piston cylinder (102). The distributor body (101) has four rows of evenly distributed through holes from left to right on its mounting surface (207) where it is installed with the smooth burner (13): a gas cleaning hole (208), an oxygen cleaning hole (209), a gas preheating hole (210), and a gas preheating hole (211). The gas cleaning hole (208), oxygen cleaning hole (209), gas preheating hole (210), and gas preheating hole (211) are respectively connected to the gas cleaning chamber (…). 201) The cleaning oxygen chamber (202), the preheating gas chamber (203), and the preheating oxygen chamber (204) are connected; the cleaning gas chamber (201) of the distributor body (101) is provided with two cooling water inlet chambers (205) on the left side, and the preheating oxygen chamber (204) is provided with cooling water return chambers (206) on both sides of the preheating oxygen hole (211) above the preheating oxygen chamber (204); one end of the through hole of the cleaning gas chamber (201), the cleaning oxygen chamber (202), the preheating gas chamber (203), and the preheating oxygen chamber (204) is sealed and fixed with a flange (115), and the other end is connected to the piston cylinder flange (307); The piston cylinder (102) has a slide rail (113) installed on the inner wall of the outer shell (111). A four-wheel slide rail trolley (114) is provided on the slide rail (113). A fixed length rod limiter (305) is provided on the four-wheel slide rail trolley (114), which extends out from the waist hole (308) on the outer shell (111). One end of the upper horizontal fixed length rod (12) and the lower horizontal fixed length rod (20) are fixed on the lower floating beam (18) and the upper floating beam (8) respectively, and the other end passes through the fixed length rod limiter (305) respectively. The piston cylinder (102) is provided with a gas cleaning piston (301), a floating end piston (302), a preheating gas piston (303), and a preheating oxygen piston (304) at corresponding positions. These pistons are concentric with the gas cleaning chamber (201), the oxygen cleaning chamber (202), the preheating gas chamber (203), and the preheating oxygen chamber (204), respectively. The top end (309) of the gas cleaning piston (301), the preheating gas piston (303), and the preheating oxygen piston (304) is flush with the outer end face (306) of the top of the floating end piston (302). When the horizontal closing action occurs, the upper horizontal fixed length rod (12) and the lower horizontal fixed length rod (20) push the four-wheel slide rail trolley to move the piston to the side of the billet. When the horizontal closing is in place, the ends (309) of the gas piston (301), the preheating gas piston (303), the preheating oxygen piston (304) and the outer end face (306) of the floating end piston (302) are flush with the side of the billet to determine the position of the billet edge.

2. The energy-saving multi-functional billet flame cleaning device according to claim 1, characterized in that: The floating end piston (302) has oxygen holes (109) evenly distributed on it. The interior of the floating end piston (302) is a cavity. The floating end piston (302) is connected to the floating end oxygen inlet pipe (112).

3. The energy-saving multi-functional billet flame cleaning device according to claim 2, characterized in that: The cleaning oxygen chamber (202) has a fixed end piston (103) on the sealing and fixing side of the flange (115). The cleaning oxygen chamber (202) is divided into three chambers: a fixed end (106), an intermediate use section (108), and a floating end (110). The distributor body (101) is correspondingly provided with a fixed end oxygen inlet (105) and an intermediate use section oxygen inlet (107).

4. The energy-saving multi-functional billet flame cleaning device according to claim 3, characterized in that: The fixed end (106), intermediate use section (108), and floating end (110) all adopt independent valve groups for PID control.

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