A vertical push heating furnace with horizontally downward and upward movement

Abstract

The utility model discloses a vertical stacking horizontal lower incoming upper output vertical push heating furnace relates to the steel billet electric heating furnace technical field, including the heating furnace of vertical arrangement, the heating furnace is including the heating coil of vertical arrangement, is provided with the water cooling roller way in the heating coil, is provided with a plurality of horizontal placement vertical stacking steel billet in the water cooling roller way, the arc feeding track is provided with the side jacking device for pushing the steel billet on the one side of arc feeding track, and the compaction device for compacting the steel billet is provided with on the top of arc feeding track, the bottom of heating furnace is provided with the collection hopper. In the utility model, because the steel billet adopts the vertical stacking horizontal lower incoming upper output feeding mode, even if there is the oxide skin of falling, will directly vertically fall to the heating furnace outside conveniently clean collection, will not make the oxide skin fall in the heating coil, has reduced the cleaning difficulty, and simultaneously because the design of vertical arrangement of heating furnace, has reduced the land occupation, can satisfy the work demand of various steel billet length.

Description

Technical Field

[0001] This utility model relates to the field of electric heating furnace technology for steel billets, and in particular to a vertically stacked, horizontally bottom-in, top-out vertical push heating furnace. Background Technology

[0002] In existing technologies, billet electric heating furnaces typically employ the following two methods:

[0003] 1. The billet is driven by the drive roller, and moves along its length in a straight line through the heating coil (as shown in the attached image). Figure 1 This method is typically used for hot billet reheating. It is suitable for billet lengths of 6-12 meters. If the billet length is less than 6 meters, the length of the billet may not match the interval between the drive roller and the coil, potentially causing one end of the billet to curl up during transport. If the billet length is greater than 12 meters, there is a possibility that the billet may bend rubbing against the furnace wall or even impact the furnace body. Therefore, this method is only suitable for reheating billets within the 6-12 meter range. Furthermore, because it can only accommodate a single billet passing through the furnace in a straight line with limited dwell time, it is not suitable for heating cold billets.

[0004] II. Based on the length of the rectangular steel billet, a flat coil is used. Heat-resistant thick-walled stainless steel tubing is used as a guide rail on the coil. Multiple steel billets placed side-by-side are pushed laterally through the heating coil (as shown in the attached diagram). Figure 2 The longer the billet stays in the furnace, the better it is at reducing the temperature difference between the surface and core of the billet. Whether hot-feeding or cold-feeding, its effect and efficiency are superior to the straight-through coil method. However, this method also has significant weaknesses: 1. The billet length cannot exceed 6 meters. The longer the billet, the larger the span of the flat coil and the more complex the structure. The refractory material at the top is easily detached due to thermal expansion and contraction. 2. During the heating process, the oxide scale continuously falls off and accumulates in the lower coil, affecting work efficiency and making cleaning very difficult. 3. Under high temperature and gravity, the friction coefficient of the guide rail is also greater, resulting in a shorter service life. In summary, although this lateral pushing method has better heating effect and efficiency than the single-line passing method, its disadvantages are obvious, and it is limited to billets under 6 meters in length, thus its application is also limited. Utility Model Content

[0005] The purpose of this invention is to provide a vertically stacked, horizontally bottom-in, top-out vertical push heating furnace, which solves the problems mentioned in the background technology that the straight-through coil method is only suitable for reheating steel billets within a range of 6-12 meters, and can only accommodate a single steel billet to pass through the furnace in a straight line with limited dwell time; and the horizontal pushing method is limited to steel billets below 6 meters, the detached oxide scale will accumulate in the coil, making cleaning difficult and the guide rail service life short.

[0006] The present invention adopts the following technical solution:

[0007] This utility model discloses a vertically stacked, horizontally bottom-in, top-out vertical push heating furnace, which includes a vertically arranged heating furnace with a structure that is open from top to bottom and open at both the top and bottom. The heating furnace includes a vertically arranged heating coil, and a water-cooled roller conveyor is provided inside the heating coil. Multiple horizontally placed and vertically stacked steel billets are arranged inside the water-cooled roller conveyor.

[0008] The bottom of the water-cooled roller conveyor is provided with an arc-shaped feeding track, one side of the arc-shaped feeding track is provided with a side pushing device for pushing the steel billet, and the top of the arc-shaped feeding track is provided with a pressing device for pressing the steel billet.

[0009] A feeding conveyor is provided between the arc-shaped feeding track and the side pushing device;

[0010] The inner wall of the water-cooled roller conveyor and the inner wall of the arc-shaped feed track are both in sliding contact with the steel billet.

[0011] The bottom of the heating furnace is provided with a material collection hopper, which is located directly below the heating coil.

[0012] Preferably, the heating furnace includes an external steel structure frame, inside which closely arranged silicon steel columns are provided, the silicon steel columns being arranged circumferentially outside the heating coil;

[0013] The heating coil is a multi-stage induction coil arranged in a vertical direction.

[0014] Preferably, the water-cooled roller conveyor includes multiple thickened stainless steel pipes with internal water flow, the stainless steel pipes are arranged vertically, and the multiple stainless steel pipes are closely arranged together.

[0015] Preferably, the top of the heating furnace is provided with a discharge device;

[0016] The discharge device includes a gantry-type steel grabber and a discharge conveying device. The gantry-type steel grabber is located above the heating furnace, and the discharge conveying device is located on both sides above the heating furnace.

[0017] Preferably, the arc-shaped feeding track includes an arc-shaped support plate located below and a plurality of arc-shaped pressure frames located above, and a channel is formed between the arc-shaped support plate and the arc-shaped pressure frames for the billet to slide through;

[0018] The upper port of the arc-shaped feeding track is vertically upward and aligns with the bottom port of the water-cooled roller conveyor. The lower port of the arc-shaped feeding track is horizontally arranged and corresponds to the position of the side pushing device.

[0019] Preferably, the side pushing device is a horizontally arranged hydraulic cylinder, the fixed end of the side pushing device is fixedly installed on the ground by the frame, and the movable end of the side pushing device is tightly fitted with the side of the steel billet on the arc-shaped support plate.

[0020] The clamping device is a vertically arranged hydraulic cylinder. The fixed end of the clamping device is fixedly mounted on the heating furnace through a frame. The clamping device is arranged in the gap between adjacent arc-shaped pressure frames. The movable end of the clamping device is tightly fitted against the top surface of the steel billet on the arc-shaped support plate.

[0021] Preferably, the feeding conveyor is a conveying roller conveyor, and the top surface of the roller conveyor corresponds to the upper surface of the end of the arc-shaped pallet.

[0022] Preferably, a feeding platform is provided on one side of the feeding conveyor;

[0023] The feeding platform includes two parallel feeding racks, each feeding rack is equipped with a slide rail, and the two slide rails are slidably connected to both ends of the feeding rack.

[0024] The feeding rack is also equipped with a rack, the sliding frame is equipped with a motor, and the output end of the motor is equipped with a gear, which meshes with the rack.

[0025] A smooth support frame is provided between the two feeding racks, the steel billet is placed on the smooth support frame, and a downward-facing lever is provided on the sliding frame, the lever contacting and cooperating with the side of the steel billet;

[0026] The smooth support frame is parallel to the feed frame and perpendicular to the feed conveying device, with one end of the smooth support frame cooperating with the feed conveying device.

[0027] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0028] This invention features a vertically arranged heating coil, reducing the footprint of the heating furnace. A water-cooled roller conveyor is installed within the heating coil, and an arc-shaped feeding track is positioned below it. Stacked steel billets are placed within the arc-shaped feeding track and the water-cooled roller conveyor. A clamping device presses the steel billets on the arc-shaped feeding track to prevent slippage, and a side-pushing device pushes newly transported steel billets into the arc-shaped feeding track. This allows the stacked steel billets in the arc-shaped feeding track and the water-cooled roller conveyor to move upwards one by one into the heating coil. This invention allows multiple steel billets to pass through the coil for heating, ensuring sufficient heating time. Because the steel billets are fed vertically, even if oxide scale falls off, it will fall vertically, facilitating cleaning and collection, and preventing oxide scale from falling into the heating coil, reducing cleaning difficulty. Simultaneously, the water-cooled roller conveyor uses water cooling to extend its service life. Furthermore, the vertically arranged design of the heating furnace in this invention reduces the footprint and can meet the working requirements of various steel billet lengths. Attached Figure Description

[0029] The present invention will be further described below with reference to the accompanying drawings.

[0030] Figure 1 This is a schematic diagram of a straight line passing through a coil, as mentioned in the background art.

[0031] Figure 2 This is a schematic diagram of the horizontal pushing method mentioned in the background technology;

[0032] Figure 3 This is a schematic diagram of the vertically stacked, horizontally bottom-in, top-out vertical push heating furnace structure of this utility model. Figure 1 ;

[0033] Figure 4 This is a cross-sectional view of the vertically stacked, horizontally bottom-in, top-out vertical push heating furnace of this utility model;

[0034] Figure 5 This is a schematic diagram of the vertically stacked, horizontally bottom-in, top-out vertical push heating furnace structure of this utility model. Figure 2 ;

[0035] Figure 6 This is a schematic diagram of the side pusher device in the vertically stacked, horizontally bottom-in, top-out vertical pusher heating furnace of this utility model;

[0036] Figure 7 This is a schematic diagram of the feeding platform structure in the vertically stacked, horizontally bottom-in, top-out vertical push heating furnace of this utility model;

[0037] Explanation of reference numerals in the attached drawings: 1. Heating furnace; 1-1. Heating coil; 1-2. External steel structure frame; 1-3. Silicon steel column; 1-4. Collecting hopper; 2. Water-cooled roller conveyor; 2-1. Stainless steel pipe; 3. Steel billet; 4. Arc-shaped feeding track; 4-1. Arc-shaped support plate; 4-1-1. Positioning plate; 4-2. Arc-shaped pressure frame; 5. Side pushing device; 6. Pressing device; 7. Feeding conveyor device; 8. Discharge device; 8-1. Gantry-type steel grabber; 8-2. Discharge conveyor device; 9. Feeding platform; 9-1. Feeding frame; 9-2. Slide rail; 9-3. Sliding frame; 9-4. Rack; 9-5. Motor; 9-6. Gear; 9-7. Smooth support frame; 9-8. Lever. Detailed Implementation

[0038] To make the technical problems, technical solutions and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0039] like Figure 3 As shown, this embodiment discloses a vertically stacked, horizontally bottom-in, top-out vertically pushing heating furnace, including a vertically arranged heating furnace 1. The heating furnace 1 has a structure that runs vertically through the furnace and is open at both the top and bottom. The heating furnace 1 includes an external steel structure frame 1-2. Inside the external steel structure frame 1-2, closely arranged silicon steel columns 1-3 are arranged as a magnetic yoke to constrain and concentrate the magnetic field. The silicon steel columns 1-3 are arranged circumferentially outside the heating coil 1-1, which is a multi-stage induction coil arranged vertically. Components such as a parallel resonant power supply, rectifier transformer, frequency converter cabinet, reactor, and capacitor cabinet are arranged on one side of the heating furnace 1. By using the combined design of "vertical coil + silicon steel column magnetic yoke + parallel resonant power supply", extremely high electro-thermal conversion efficiency and power factor are achieved, resulting in significant overall energy savings.

[0040] A discharge device 8 is installed on the top of the heating furnace 1. The discharge device 8 includes a gantry-type steel grabber 8-1 and a discharge conveyor 8-2. The gantry-type steel grabber 8-1 is located above the heating furnace 1, and the discharge conveyor 8-2 is located on both sides above the heating furnace 1. The discharge conveyor 8-2 is a conveying roller conveyor. The gantry-type steel grabber 8-1 includes a frame, on which are installed mechanical claws that can move forward, backward, left, and right and can extend. Simply put, the gantry-type steel grabber 8-1 has the same structure as a gantry crane, except that the bucket of the gantry crane is replaced with mechanical claws. The gantry-type steel grabber 8-1 is an existing technology and will not be described in detail here.

[0041] like Figure 4 and Figure 5As shown, a water-cooled roller conveyor 2 is installed inside the heating coil 1-1, and multiple horizontally placed and vertically stacked steel billets 3 are installed inside the water-cooled roller conveyor 2. An arc-shaped feeding track 4 is installed at the bottom of the water-cooled roller conveyor 2, and the inner walls of the water-cooled roller conveyor 2 and the arc-shaped feeding track 4 are in sliding contact with the steel billets 3. A side-pushing device 5 for pushing the steel billets 3 is installed on one side of the arc-shaped feeding track 4, and a clamping device 6 for pressing the steel billets 3 is installed above the horizontal end of the arc-shaped feeding track 4.

[0042] In this embodiment, the water-cooled roller conveyor 2 includes multiple thickened stainless steel pipes 2-1 with internal water circulation. The stainless steel pipes 2-1 are arranged vertically and are closely packed together. The steel billet 3 moves synchronously upward in the vertical direction within the channel formed by these stainless steel pipes 2-1, one after another. The water circulation inside the stainless steel pipes 2-1 is to cool them down and prevent high-temperature damage.

[0043] A feeding conveyor 7 is installed between the arc-shaped feeding track 4 and the side pushing device 5. The feeding conveyor 7 transports the billet 3 between the arc-shaped feeding track 4 and the side pushing device 5. The side pushing device 5 is activated to push the transported billet 3 into the arc-shaped feeding track 4. The billets 3 that were originally in the water-cooled roller conveyor 2 and the arc-shaped feeding track 4 are squeezed and pushed up by the newly pushed billets 3, so that all the billets 3 in the water-cooled roller conveyor 2 move upward. As more and more billets 3 are pushed in, the stacked billets 3 in the water-cooled roller conveyor 2 are pushed to the outlet position one after another. The gantry-type steel grabber 8-1 grabs the pushed-up billets 3 and transfers them to the discharge conveyor 8-2 for transport.

[0044] A material collection hopper 1-4 is located at the bottom of the heating furnace 1, directly below the heating coil 1-1. During the heating process, the scale falling off one side of the billet 3 will fall vertically into the material collection hopper 1-4, while the scale falling off the other side will fall onto the horizontally placed billet 3 within the arc-shaped feeding track 4. This scale can be easily cleaned. In general, thanks to the vertical arrangement of the heating furnace 1 and the arc-shaped feeding track 4 at the bottom, the billets 3 are lifted into the heating furnace 1 one by one from bottom to top for heating, and the falling scale will not fall into the heating coil 1-1, reducing the difficulty of cleaning.

[0045] It should be noted that, in order to detect the temperature, one temperature measuring point can be set at the inlet and one outlet of the heating furnace 1, so as to realize real-time monitoring and closed-loop control of the uniformity of the temperature of the billet 3 entering and exiting the furnace.

[0046] like Figure 6As shown, the arc-shaped feeding track 4 includes an arc-shaped support plate 4-1 located below and multiple arc-shaped pressure frames 4-2 located above. A channel for the steel billet 3 to slide through is formed between the arc-shaped support plate 4-1 and the arc-shaped pressure frames 4-2. The upper end of the arc-shaped feeding track 4 is vertically upward and is aligned with the bottom end of the channel of the water-cooled roller conveyor 2. The lower end of the arc-shaped feeding track 4 is horizontally arranged and corresponds to the position of the side pushing device 5.

[0047] The side-pushing device 5 is a horizontally arranged hydraulic cylinder. The fixed end of the side-pushing device 5 is fixedly mounted on the ground by a frame, and the movable end of the side-pushing device 5 is tightly fitted against the side of the steel billet 3 on the arc-shaped support plate 4-1. The clamping device 6 is a vertically arranged hydraulic cylinder. The fixed end of the clamping device 6 is fixedly mounted on the heating furnace 1 by a frame, and the clamping device 6 is arranged in the gap between adjacent arc-shaped pressure frames 4-2. The movable end of the clamping device 6 is tightly fitted against the top surface of the steel billet 3 on the arc-shaped support plate 4-1.

[0048] In this embodiment, the arc-shaped support plate 4-1 is provided with positioning plates 4-1-1 at the front end and the rear end along the length of the heating furnace 1. When the steel billet 3 conveyed by the feeding conveyor 7 is located between the two positioning plates 4-1-1, the side pushing device 5 can be activated to push it.

[0049] The feeding conveyor 7 is a conveying roller conveyor, and the top surface of the roller conveyor 7 is flush with the upper surface of the end of the arc-shaped support plate 4-1. During operation, the side pushing device 5 is activated first. The movable end of the side pushing device 5 extends, pushing the steel billet 3 horizontally positioned between the arc-shaped support plate 4-1 and the arc-shaped pressure frame 4-2 inwards, leaving a gap at the end of the arc-shaped support plate 4-1 near the feeding conveyor 7 to accommodate the next steel billet 3 (at this time, the steel billets 3 stacked in the arc-shaped feeding track 4 and the water-cooled roller conveyor 2 will move upwards one by one). Then, the clamping device 6 is activated, and the movable end of the clamping device 6 extends and presses tightly against the upper surface of the steel billet 3 that was just pushed by the side pushing device 5, thus preventing the steel billet 3 from sliding down. Then, the side pushing device 5 retracts its movable end; then, the feeding conveyor 7 feeds a new steel billet... When the billet 3 is transported to the corresponding position between the arc-shaped feeding track 4 and the side pushing device 5, the feeding conveying device 7 pauses. At this time, the side pushing device 5 extends its movable end to push the new billet 3 from the feeding conveying device 7 to the arc-shaped support plate 4-1 and the arc-shaped pressure frame 4-2. When the newly pushed billet 3 is tightly attached to the original billet 3, the movable end of the pressing device 6 retracts. The side pushing device 5 continues to extend and pushes the new billet 3 to below the movable end of the pressing device 6. The movable end of the pressing device 6 extends again to press the upper surface of the new billet 3 to prevent it from being squeezed out by the stacked original billets 3. The side pushing device 5 retracts its movable end and waits for the feeding conveying device 7 to transport the next billet 3.

[0050] like Figure 1 and Figure 7As shown, in this embodiment, a feeding platform 9 is provided on one side of the feeding conveying device 7. The feeding platform 9 includes two parallel feeding racks 9-1, each with a slide rail 9-2. The two slide rails 9-2 are slidably connected to both ends of a sliding frame 9-3. A rack 9-4 is also provided on the feeding rack 9-1. A motor 9-5 is fixedly mounted on the sliding frame 9-3. A gear 9-6 is provided at the output end of the motor 9-5. The gear 9-6 meshes with the rack 9-4. When the motor 9-5 starts, it drives the gear 9-6 to rotate. With the help of the rack 9-4, the sliding frame 9-3 can slide on the slide rails 9-2.

[0051] A smooth support frame 9-7 is installed between the two feeding racks 9-1. The smooth support frame 9-7 is parallel to the feeding racks 9-1 and perpendicular to the feeding conveyor 7. The front end of the smooth support frame 9-7 is engaged with the feeding conveyor 7, that is, the front end of the smooth support frame 9-7 extends between the conveying rollers of the feeding conveyor 7, and the top surface of the front end of the smooth support frame 9-7 is flush with the top surface of the conveying rollers of the feeding conveyor 7. The steel billet 3 is placed on the smooth support frame 9-7. A downward-facing lever 9-8 is installed on the sliding frame 9-3, and the lever 9-8 contacts and engages with the side of the steel billet 3. The motor 9-5 starts and drives the sliding frame 9-3 to move, which in turn drives the lever 9-8 to push the steel billet 3 to slide on the smooth support frame 9-7, and gradually moves the steel billet 3 onto the feeding conveyor 7.

[0052] The working process of this utility model is as follows:

[0053] Initially, there is no billet 3 in the water-cooled roller conveyor 2 or the arc-shaped feeding track 4. The feeding platform 9 moves the billet 3 onto the feeding conveyor 7. The feeding conveyor 7 moves the billet 3 between the arc-shaped feeding track 4 and the side pushing device 5. The side pushing device 5 is activated and extends its movable end to push the billet 3 from the feeding conveyor 7 into the space between the arc-shaped support plate 4-1 and the arc-shaped pressure frame 4-2. The billet 3 is continuously pushed in until it is below the movable end of the pressing device 6. The movable end of the pressing device 6 extends and presses the upper surface of the billet 3 to prevent it from slipping out. At this time, the arc-shaped support plate 4-1 is reserved for the next billet 3. The side-pushing device 5 retracts its movable end, and the feeding conveyor 7 transports the next new steel billet 3 to the front of the arc-shaped support plate 4-1. The side-pushing device 5 extends again to push the new steel billet 3 between the arc-shaped support plate 4-1 and the arc-shaped pressure frame 4-2 until the new steel billet 3 is close to the steel billet 3 on the arc-shaped support plate 4-1. At this time, the pressing device 6 retracts its movable end, and the side-pushing device 5 continues to push forward, pushing the new steel billet 3 under the pressing device 6. The pressing device 6 extends its movable end again to press the new steel billet 3 tightly. The side-pushing device 5 retracts again, ready to push the next steel billet 3. This process is repeated multiple times, and the steel billets 3 are pushed one after another into the water-cooled roller conveyor 2, gradually passing through the heating coil 1-1 for heating, until they pass through the heating coil 1-1 and reach the upper discharge port. The gantry-type steel grabber 8-1 grabs the pushed-up steel billet 3 and transfers it to the discharge conveyor 8-2 for transport.

[0054] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A vertically stacked, horizontally bottom-in, top-out vertical push heating furnace, characterized in that: The furnace includes a vertically arranged heating furnace (1), which has a structure that is open from top to bottom and open at both the top and bottom. The heating furnace (1) includes a vertically arranged heating coil (1-1), and a water-cooled roller conveyor (2) is provided inside the heating coil (1-1). Multiple horizontally placed and vertically stacked steel billets (3) are provided inside the water-cooled roller conveyor (2). The bottom of the water-cooled roller conveyor (2) is provided with an arc-shaped feeding track (4), and a side pushing device (5) for pushing the steel billet (3) is provided on one side of the arc-shaped feeding track (4). A pressing device (6) for pressing the steel billet (3) is provided above the arc-shaped feeding track (4). A feeding conveying device (7) is provided between the arc-shaped feeding track (4) and the side pushing device (5). The inner wall of the water-cooled roller conveyor (2) and the inner wall of the arc-shaped feeding track (4) are in sliding contact with the steel billet (3); The bottom of the heating furnace (1) is provided with a material collection hopper (1-4), and the material collection hopper (1-4) is located directly below the heating coil (1-1).

2. The vertically stacked, horizontally bottom-in, top-out vertical push heating furnace according to claim 1, characterized in that: The heating furnace (1) includes an external steel structure frame (1-2), and closely arranged silicon steel columns (1-3) are provided inside the external steel structure frame (1-2). The silicon steel columns (1-3) are arranged circumferentially outside the heating coil (1-1). The heating coil (1-1) is a multi-stage induction coil arranged in a vertical direction.

3. The vertically stacked, horizontally bottom-in, top-out vertical push heating furnace according to claim 1, characterized in that: The water-cooled roller conveyor (2) includes multiple thickened stainless steel pipes (2-1) with internal water flow. The stainless steel pipes (2-1) are arranged vertically and the multiple stainless steel pipes (2-1) are closely arranged together.

4. The vertically stacked, horizontally bottom-in, top-out vertical push heating furnace according to claim 1, characterized in that: The top of the heating furnace (1) is provided with a discharge device (8); The discharge device (8) includes a gantry-type steel grabber (8-1) and a discharge conveying device (8-2). The gantry-type steel grabber (8-1) is located above the heating furnace (1), and the discharge conveying device (8-2) is located on both sides above the heating furnace (1).

5. The vertically stacked, horizontally bottom-in, top-out vertical push heating furnace according to claim 1, characterized in that: The arc-shaped feeding track (4) includes an arc-shaped support plate (4-1) located below and multiple arc-shaped pressure frames (4-2) located above, and a channel is formed between the arc-shaped support plate (4-1) and the arc-shaped pressure frames (4-2) for the billet (3) to slide through; The upper port of the arc-shaped feeding track (4) is vertically upward and is aligned with the bottom port of the water-cooled roller conveyor (2). The lower port of the arc-shaped feeding track (4) is horizontally arranged and corresponds to the position of the side push device (5).

6. The vertically stacked, horizontally bottom-in, top-out vertical push heating furnace according to claim 5, characterized in that: The side pushing device (5) is a horizontally arranged hydraulic cylinder. The fixed end of the side pushing device (5) is fixed on the ground by the frame. The movable end of the side pushing device (5) is in close contact with the side of the steel billet (3) on the arc-shaped support plate (4-1). The clamping device (6) is a vertically arranged hydraulic cylinder. The fixed end of the clamping device (6) is fixedly installed on the heating furnace (1) through the frame. The clamping device (6) is arranged in the gap between the adjacent arc-shaped pressure frame (4-2). The movable end of the clamping device (6) is in close contact with the top surface of the steel billet (3) on the arc-shaped support plate (4-1).

7. The vertically stacked, horizontally bottom-in, top-out vertical push heating furnace according to claim 6, characterized in that: The feeding conveying device (7) is a conveying roller conveyor, and the top surface of the roller conveyor (7) corresponds to the upper surface of the end of the arc-shaped pallet (4-1).

8. The vertically stacked, horizontally bottom-in, top-out vertical push heating furnace according to claim 7, characterized in that: A feeding platform (9) is provided on one side of the feeding conveying device (7); The feeding platform (9) includes two parallel feeding racks (9-1), and the feeding racks (9-1) are provided with slide rails (9-2). The two slide rails (9-2) are slidably connected to both ends of the sliding frame (9-3). The feed rack (9-1) is also provided with a rack (9-4), the sliding frame (9-3) is provided with a motor (9-5), the output end of the motor (9-5) is provided with a gear (9-6), and the gear (9-6) meshes with the rack (9-4); A smooth support frame (9-7) is provided between the two feeding racks (9-1), and the steel billet (3) is placed on the smooth support frame (9-7). A downward-facing lever (9-8) is provided on the sliding frame (9-3), and the lever (9-8) contacts and cooperates with the side of the steel billet (3). The smooth support frame (9-7) is parallel to the feed frame (9-1) and perpendicular to the feed conveyor (7). One end of the smooth support frame (9-7) is positioned to cooperate with the feed conveyor (7).

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