Steel ingot red feeding forging and heat treatment integrated energy-saving production line and method

Abstract

The invention provides an energy-saving production line and method integrating steel ingot red-feeding forging and heat treatment, and belongs to the technical field of steel ingot forging. Comprising a steelmaking area, a forging area and a heat treatment area, a smelting furnace machine used for smelting molten iron and a plurality of steel ingot molds used for pouring forged and pressed sample pieces are arranged in the steelmaking area, and a conveyor used for transporting the steel ingot molds for molten iron pouring and a plurality of transport vehicles used for transporting the steel ingot molds are arranged on the outer side of the smelting furnace machine; the discharging end of the conveyor is provided with a first transferring mechanism used for transferring the steel ingot molds on the conveyor to the transport cart. A plurality of groups of mold opening mechanisms for performing red demolding on steel ingot molds on the transport vehicle, a forging heating furnace for heating forged and pressed sample pieces and a forging oil press for forging and pressed sample pieces are arranged in the forging area, and a second transfer mechanism for transferring the forged and pressed sample pieces is further arranged on the outer side of the mold opening mechanism; and a plurality of heat treatment furnaces for normalizing are arranged in the heat treatment area. And the effect of saving resources is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of steel ingot forging, and in particular to an energy-saving production line and method integrating hot-feeding forging and heat treatment of steel ingots. Background Art

[0002] Ingot forging is a metal plastic processing method that applies pressure to cause the steel ingot to undergo plastic changes, thereby changing its shape and size while improving the material's organization and properties.

[0003] In the traditional steel ingot forging process, workers need to use a sawing machine to cut a large room temperature steel ingot into multiple forging samples; then the samples are heated and forged; after forging is completed, the samples can be normalized, and finally the steel ingot is taken out and air-cooled.

[0004] However, when using this steel ingot forging process, the factory can only purchase finished large steel ingots, and then cut them according to the factory's needs before forging. During the cutting process, some scraps and leftovers will be generated and can no longer be used for steel ingot forging, resulting in a waste of resources. Summary of the Invention

[0005] In view of the above problems, the present invention provides an energy-saving production line and method that integrates hot-feeding forging and heat treatment of steel ingots.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0007] On the first aspect, an energy-saving production line integrating hot-feeding, forging and heat treatment of steel ingots is provided, which includes a steelmaking area, a forging area and a heat treatment area. The steelmaking area is provided with a furnace machine for melting molten iron and a plurality of steel ingot molds for casting forging samples. A conveyor for transporting the steel ingot molds for molten iron pouring and a plurality of transport vehicles for transferring the steel ingot molds are provided outside the furnace machine. A first transfer mechanism for transferring the steel ingot molds on the conveyor to the transport vehicle is provided at the discharge end of the conveyor; a plurality of mold opening mechanisms for demolding the steel ingot molds on the transport vehicle, a forging heating furnace for heating forging samples and a forging hydraulic press for forging forging samples are provided in the forging area, and a second transfer mechanism for transferring forging samples is also provided outside the mold opening mechanism; a plurality of heat treatment furnaces for normalizing are provided in the heat treatment area.

[0008] Furthermore, a first mounting frame is provided on the conveyor, a material guide pipe for pouring molten iron is provided on the first mounting frame, a pouring port is provided on the top of the ingot mold, a first positioning member is provided on the first mounting frame for positioning the pouring port below the material guide pipe, the first positioning member includes two first positioning columns horizontally and linearly slidably arranged on both sides of the first mounting frame, first positioning grooves for cooperating with the first positioning columns are provided on both sides of the ingot mold, and the first mounting frame is provided with a first driving member for driving the first positioning column to move out of the first positioning groove after pouring of the ingot mold is completed.

[0009] Furthermore, the first transfer mechanism includes a first mounting seat, a first bracket is rotatably provided on the first mounting seat, a mounting plate is vertically slidably provided on the first bracket, a first clamping jaw for clamping the steel ingot mold is provided on the mounting plate, a second driving member for driving the first bracket to rotate is provided on the first mounting seat, and a third driving member for driving the mounting plate to move is provided on the first bracket; the second transfer mechanism includes a second mounting seat, a second bracket is connected to the second mounting seat through a three-dimensional linear module, and a second clamping jaw for clamping the forged sample after demolding is provided on the second bracket; a second positioning member for connecting to the steel ingot mold is provided on the first clamping jaw, and a third positioning member for connecting to the steel ingot mold is provided on the transport vehicle.

[0010] Furthermore, the second positioning member includes a plurality of second positioning columns arranged on the two inner side walls of the first clamp, and a plurality of second positioning grooves with sizes matching the second positioning columns are provided on both side walls of the steel ingot mold; the third positioning member includes a plurality of third positioning columns, and the transport vehicle is provided with a first mounting frame for accommodating the steel ingot mold, and a plurality of third positioning columns are respectively arranged on both sides of the first mounting frame for horizontal linear sliding, and a plurality of third positioning grooves with sizes matching the third positioning columns are provided on the other two side walls of the steel ingot mold, and the first mounting frame is provided with a plurality of first elastic members for driving the third positioning columns to move one by one and plugging into the third positioning grooves.

[0011] Furthermore, the mold opening mechanism includes a second mounting bracket, a third bracket is vertically movable on the second mounting bracket, and plug-in plates adapted to the first positioning groove are horizontally and linearly slidably provided on both sides of the third bracket. The steel ingot mold includes an upper mold and a lower mold, the first positioning groove is provided on the side wall of the upper mold, and the second positioning groove and the third positioning groove are provided on the side wall of the lower mold. A second elastic member for driving the plug-in plate to move and to engage with the second positioning groove is provided on the third bracket, and an abutment rod for contacting the forging sample along the pouring gate to limit its movement with the upper mold is vertically slidably provided on the second mounting bracket, a fourth driving member for driving the abutment rod to move, and a fifth driving member for driving the third bracket to move are provided on the second mounting bracket, and a fourth positioning member for positioning the pouring gate below the abutment rod is provided on the second mounting bracket. The lower mold is also provided with an ejection member for ejecting the forging sample after the mold is opened.

[0012] Furthermore, the fourth positioning member includes a positioning plate horizontally arranged on the second mounting frame, and a positioning notch is formed on the positioning plate for the first transport vehicle to move into.

[0013] Furthermore, a plurality of hammers for striking the side walls of the ingot mold are horizontally and linearly slidably arranged in the first installation frame, and a plurality of sixth driving members for driving the hammers to move one by one are provided on the first installation frame.

[0014] Furthermore, the ejection component includes a push rod vertically slidingly arranged in the lower mold, a sliding groove for the push rod to slide vertically is opened through the bottom of the lower mold, and a connecting rod is vertically slidably arranged on the transport vehicle for passing through the sliding groove and contacting the bottom of the push rod to move it upward. The transport vehicle is provided with a seventh driving component for driving the connecting rod to move upward.

[0015] Furthermore, the transport vehicle is provided with a second installation frame for placing the forged sample after forging, and a cover plate is provided on the top of the second installation frame, and a heating device for supplementing the heat of the forged sample is provided on the cover plate.

[0016] In a second aspect, an energy-saving production method for integrating hot-feeding, forging, and heat treatment of steel ingots is provided, which is applied with an energy-saving production line for integrating hot-feeding, forging, and heat treatment of steel ingots provided in the first aspect, comprising the following steps:

[0017] S1: Put the steel ingot raw materials into the melting furnace to melt into molten iron;

[0018] S2: Pour molten iron into multiple steel ingot molds along the pouring port to cast forging samples;

[0019] S3: The steel ingot mold is transported to the mold opening mechanism by a transport vehicle. When the surface temperature of the forging sample is stable at 900±20℃ and the core temperature is not lower than 1150℃, red demoulding is performed;

[0020] S4: Place the forging sample after demoulding into a forging heating furnace and heat it to the initial forging temperature. Then take it out and place it on a forging hydraulic press for forging. The initial forging temperature is 1180-1200℃.

[0021] S5: The forged sample is transported to a heat treatment furnace by a transport vehicle for normalizing treatment at a temperature of 850-900°C.

[0022] S6: Take out the forging sample after normalizing and air-cool it. After cooling, the formed steel ingot can be obtained.

[0023] The beneficial effects of the present invention are:

[0024] 1. Through the furnace machine and ingot mold, the factory can refine the forging samples of the required size according to the factory's needs, without having to rely on purchasing finished large ingots, and also avoid the waste of scraps and leftovers;

[0025] Second, by means of hot feeding and hot demoulding, the forging sample can still be kept at a high temperature when demoulding, and there is no need to wait for it to cool to room temperature before heating and forging. This can reduce the time for heating the forging sample to the initial forging temperature, thereby reducing the fuel consumption in the forging heating furnace, and having the effect of saving resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of an integrated energy-saving production line for hot-feeding forging and heat treatment of steel ingots in Example 1.

[0027] Figure 2 This is a structural schematic diagram of the first positioning part of an integrated energy-saving production line for hot-feeding, forging and heat treatment of steel ingots in Example 1.

[0028] Figure 3 This is a structural schematic diagram of the first transfer mechanism of an integrated energy-saving production line for hot-feeding, forging and heat treatment of steel ingots in Example 1.

[0029] Figure 4 This is a schematic diagram of the equipment installation in the forging area of ​​an integrated energy-saving production line for hot-feed forging and heat treatment of steel ingots in Example 1.

[0030] Figure 5 for Figure 4 A partial enlarged schematic diagram of part A.

[0031] Figure 6 This is a schematic diagram of the installation of various components on a transport vehicle for an integrated energy-saving production line for hot-delivery, forging, and heat treatment of steel ingots in Example 1.

[0032] Figure 7 This is a structural schematic diagram of the mold opening mechanism of an integrated energy-saving production line for hot-feeding forging and heat treatment of steel ingots in Example 1.

[0033] Figure 8 This is a structural schematic diagram from another perspective of the mold opening mechanism of an integrated energy-saving production line for hot-feeding forging and heat treatment of steel ingots in Example 1.

[0034] Figure 9 This is a schematic diagram of the ejector structure of an integrated energy-saving production line for hot-feeding, forging and heat treatment of steel ingots in Example 1.

[0035] Among them, 1. furnace machine; 2. ingot mold; 21. upper mold; 211. pouring gate; 212. first positioning groove; 22. lower mold; 221. second positioning groove; 222. third positioning groove; 3. conveyor; 4. transport vehicle; 41. first mounting frame; 42. second mounting frame; 421. heating device; 422. thermal radiation shielding layer; 43. cover plate; 5. first transfer mechanism; 51. first mounting seat; 52. first bracket; 521. second driving member; 53. mounting plate; 531. third driving member; 54. first clamp; 6. mold opening mechanism; 61. second mounting frame; 62. third bracket; 621. fifth driving member; 63. plug Plate; 64, second elastic member; 7, forging heating furnace; 8, forging hydraulic press; 81, cutter head; 9, second transfer mechanism; 91, second mounting seat; 92, second bracket; 921, three-dimensional linear module; 93, second clamp; 10, heat treatment furnace; 20, first mounting frame; 201, material guide tube; 30, first positioning column; 301, first driving member; 40, second positioning column; 50, third positioning column; 501, first elastic member; 60, abutment rod; 601, fourth driving member; 70, positioning plate; 701, positioning notch; 80, hammer; 801, sixth driving member; 90, push rod; 901, connecting rod; 902, seventh driving member. DETAILED DESCRIPTION

[0036] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0037] Example 1

[0038] The present application discloses an energy-saving production line integrating hot-feeding forging and heat treatment of steel ingots, referring to Figure 1 , including a steelmaking area, a forging area and a heat treatment area. The steelmaking area is provided with a furnace machine 1 for melting molten iron and a plurality of steel ingot molds 2 for pouring forging samples. A conveyor 3 for transporting the steel ingot molds 2 for pouring molten iron, and a plurality of transport vehicles 4 for transferring the steel ingot molds 2 are provided on the outside of the furnace machine 1. A first transfer mechanism 5 for transferring the steel ingot molds 2 on the conveyor 3 to the transport vehicle 4 is provided at the discharge end of the conveyor 3. The forging area is provided with a plurality of die opening mechanisms 6 for demolding the steel ingot molds 2 on the transport vehicle 4, a forging heating furnace 7 for heating forging samples and a forging hydraulic press 8 for forging forging samples. A second transfer mechanism 9 for transferring forging samples is also provided on the outside of the die opening mechanism 6. The heat treatment area is provided with a plurality of heat treatment furnaces 10 for normalizing.

[0039] In the embodiment of the present application, the conveyor 3 adopts a chain plate conveyor. After the steelmaking raw materials are put into the furnace machine 1, they can be melted into molten iron. During the transportation of multiple ingot molds 2 along the conveyor 3, the furnace machine 1 can pour the molten iron into each ingot mold 2 so as to cast it into a forging sample. The casted ingot mold 2 can be transferred to the transport vehicle 4 by the first transfer mechanism 5 and transported to the forging area. When the surface temperature of the forging sample in the ingot mold 2 is cooled to 900±20℃ and the core temperature is not lower than 1150℃, the forging sample is demolded by the mold opening mechanism 6, and then the forging sample can be taken out by the second transfer mechanism 9 and placed in the forging heating furnace 7 to be heated to the initial forging temperature of 1180~1200℃. The forging sample is then placed in the forging hydraulic press 8 by the second transfer mechanism 9 for forging. After forging is completed, the forging sample is placed on the transport vehicle 4 again and transported to the heat treatment area. In the heat treatment area, the staff can use a crane or other lifting equipment to place the forged sample into the heat treatment furnace 10 for heating and normalizing. After the treatment is completed, it is taken out and air-cooled to obtain a formed steel ingot.

[0040] The present application provides an energy-saving production line integrating hot-feeding forging and heat treatment of steel ingots. Through the furnace machine 1 and the steel ingot mold 2, the factory can refine forging samples of required sizes according to the needs of the factory by itself, without having to rely on purchasing finished large steel ingots, and also avoids the waste of scraps and surplus materials; through the hot-feeding and hot-demolding methods, the forging samples can still be kept in a high temperature state when demolding, and there is no need to wait for them to cool to room temperature before heating and forging, which can reduce the time for heating the forging samples to the initial forging temperature, thereby reducing the fuel consumption in the forging heating furnace 7, and having the effect of saving resources.

[0041] In addition, the surface temperature of the forged specimen is maintained at 900±20℃ during demolding, and the core temperature is not lower than 1150℃, which can avoid liquid residue caused by demolding too early or heat waste caused by demolding too late, and also has the effect of saving resources.

[0042] Reference Figure 2 A first mounting frame 20 is bolted to the conveyor 3, and a guide tube 201 for pouring molten iron is provided on the first mounting frame 20. A pouring port 211 is provided at the top of the ingot mold 2, and a first positioning member is provided on the first mounting frame 20 for positioning the pouring port 211 below the guide tube 201. The first positioning member includes two first positioning columns 30 that slide horizontally and linearly on both sides of the first mounting frame 20. First positioning slots 212 for engaging the first positioning columns 30 are provided on both sides of the ingot mold 2. A first driving member 301 is provided on the first mounting frame 20 for driving the first positioning columns 30 out of the first positioning slots 212 after pouring of the ingot mold 2 is completed.

[0043] In the embodiment of the present application, as the steel ingot mold 2 moves with the conveyor 3 past the first mounting frame 20, the ends of the first positioning posts 30 on both sides can enter the first positioning slots 212. When the first positioning posts 30 come into contact with the inner wall of the first positioning slots 212, the movement of the steel ingot mold 2 is restricted. At this time, the pouring port 211 is located directly below the guide tube 201, allowing the furnace 1 to pour molten iron into the steel ingot mold 2 through the guide tube 201. After pouring is completed, the first driving member 301 drives the first positioning posts 30 out of the first positioning slots 212, and the steel ingot mold 2 can continue to be transported along the conveyor 3.

[0044] Reference Figure 3 The first transfer mechanism 5 includes a first mounting seat 51, on which a first bracket 52 is rotatably mounted. A mounting plate 53 is vertically slidably mounted on the first bracket 52. The mounting plate 53 is provided with a first clamping claw 54 for clamping the ingot mold 2. A second driving member 521 is provided on the first mounting seat 51 for driving the first bracket 52 to rotate, and a third driving member 531 is provided on the first bracket 52 for driving the mounting plate 53 to move.

[0045] Reference Figure 4 and Figure 5 The second transfer mechanism 9 includes a second mounting seat 91, and the second mounting seat 91 is connected to a second bracket 92 through a three-dimensional linear module 921. The second bracket 92 is provided with a second clamping claw 93 for clamping the forging sample after demolding.

[0046] The first clamping jaw 54 is provided with a second positioning member for connecting to the steel ingot mold 2 , and the transport vehicle 4 is provided with a third positioning member for connecting to the steel ingot mold 2 .

[0047] In this embodiment, both the first gripper 54 and the second gripper 93 are electric grippers. The coordinated movement of the first bracket 52 and mounting plate 53 enables the first gripper 54 to grip the steel ingot mold 2 on the conveyor 3 and transfer it to the transport vehicle 4. The movement of the second bracket 92, driven by a three-dimensional linear module 921, enables the second gripper 93 to grip the forging sample and transport it to the forging heating furnace 7 and the forging hydraulic press 8.

[0048] Specifically, the second positioning member includes a plurality of second positioning columns 40 connected to the two inner side walls of the first clamping jaw 54 by multiple bolts, and a plurality of second positioning grooves 221 having a size matching the second positioning columns 40 are provided on the two side walls of the ingot mold 2. Figure 6The third positioning member includes multiple third positioning posts 50. A first mounting frame 41 for accommodating the ingot mold 2 is bolted to the transport vehicle 4. Multiple third positioning posts 50 are horizontally and linearly slidably disposed on either side of the first mounting frame 41. Multiple third positioning slots 222 sized to match the third positioning posts 50 are defined on the other two side walls of the ingot mold 2. One end of each third positioning post 50 defines a first inclined surface for slidingly contacting the bottom of the ingot mold 2. Multiple first elastic members 501 are provided on the first mounting frame 41 for individually driving the third positioning posts 50 to move and engage with the third positioning slots 222.

[0049] In the embodiment of the present application, when the first clamping jaw 54 clamps the steel ingot mold 2 , the second positioning posts 40 on both sides can be inserted into the second positioning grooves 221 to improve the stability of the steel ingot mold 2 during the rotation process.

[0050] The first elastic member 501 includes a first spring. One end of the third positioning post 50 is coaxially mounted on the first pull rod. The first pull rod flexibly extends through the side wall of the first mounting frame 41 and is connected to a first handle. The first spring is sleeved onto the outer wall of the first pull rod, and its ends respectively abut the inner wall of the first mounting frame 41 and the third positioning post 50. When the ingot mold 2 is lowered into the first mounting frame 41, the bottom edge of the ingot mold 2 contacts the first inclined surface of the third positioning post 50, squeezing the third positioning post 50 toward the outside of the first mounting frame 41. When the bottom of the ingot mold 2 contacts the top of the transport vehicle 4, the third positioning post 50 aligns with the third positioning slot 222. The elastic force of the first elastic member 501 drives the third positioning post 50 into the third positioning slot 222. This improves the stability of the ingot mold 2 when installed on the transport vehicle 4.

[0051] Reference Figure 7 and Figure 8The mold opening mechanism 6 includes a second mounting bracket 61, on which a third bracket 62 is vertically movable. Plug-in plates 63 that mate with the first positioning slots 212 are horizontally and linearly slidably mounted on both sides of the third bracket 62. One end of the plug-in plate 63 is provided with a second inclined surface for sliding contact with the top of the ingot mold 2. The ingot mold 2 includes an upper mold 21 and a lower mold 22. The top of the lower mold 22 is provided with a cavity for pouring molten iron. The first positioning slot 212 is provided on the side wall of the upper mold 21, and the second and third positioning slots 221, 222 are provided on the side wall of the lower mold 22. The third bracket 62 is provided with a second elastic member 64 for driving the plug-in plate 63 to move and engage with the second positioning slot 221. A contact rod 60 is vertically slidably mounted on the second mounting bracket 61 for contacting the forged sample along the pouring gate 211 to restrict its movement with the upper die 21. The second mounting bracket 61 is also provided with a fourth driving member 601 for driving the contact rod 60, and a fifth driving member 621 for driving the third bracket 62. A fourth positioning member is also mounted on the second mounting bracket 61 for positioning the pouring gate 211 below the contact rod 60. An ejector member is also mounted within the lower die 22 for ejecting the forged sample after the die is opened.

[0052] In this embodiment, the second elastic member 64 comprises a second spring. One end of the plug-in board 63 is horizontally connected to a second pull rod, one end of which flexibly passes through the third bracket 62 and is connected to the second handle. The second spring is sleeved around the outside of the second pull rod, with both ends of the second spring contacting the inner sidewalls of the plug-in board 63 and the third bracket 62, respectively.

[0053] Since the ingot mold 2 is connected to the first mounting frame 41 via the second positioning member, when the transport vehicle 4 is positioned via the fourth positioning member, the pouring port 211 can be directly opposite the abutting rod 60 above. At this time, the abutting rod 60 moves downward and abuts the portion of the forged sample located at the pouring port 211. Subsequently, the third bracket 62 moves downward so that the plug-in plate 63 can be moved to the first positioning groove 212. Under the elastic force of the second elastic member 64, the plug-in plate 63 can be driven to be inserted into the first positioning groove 212. Then, the third bracket 62 moves upward so that the upper mold 21 can be lifted to open the mold. After the mold is opened, the abutting rod 60 moves upward, and the forged sample can be ejected through the ejection member so that it can be transported by the second transport mechanism 9.

[0054] Specifically, the fourth positioning member includes a positioning plate 70 connected to the second mounting frame 61 by horizontal bolts. The positioning plate 70 is provided with a positioning notch 701 for the transport vehicle 4 to move into.

[0055] When the transport vehicle 4 enters the positioning notch 701 , the outer sidewall of the transport vehicle 4 contacts the inner sidewall of the positioning notch 701 , thereby achieving the purpose of positioning.

[0056] Furthermore, a plurality of hammers 80 for striking the side walls of the ingot mold 2 are horizontally and linearly slidably provided in the first installation frame 41 , and a plurality of sixth driving members 801 for driving the hammers 80 to move one by one are provided on the first installation frame 41 .

[0057] In the embodiment of the present application, the hammer 80 can hit the side wall of the ingot mold 2 again before the mold is opened, so that the forging sample is separated from the inner wall of the cavity.

[0058] In order to facilitate the removal of the forging sample, a release agent can also be coated on the inner wall of the cavity.

[0059] Reference Figure 9 The ejection assembly includes an ejector rod 90 that slides vertically within the lower mold 22. A chute is defined through the bottom of the lower mold 22 for the vertical sliding movement of the ejector rod 90. A connecting rod 901 is vertically slidably provided on the transport trolley 4 for passing through the chute and contacting the bottom of the ejector rod 90 to cause it to move upward. The transport trolley 4 is provided with a seventh driving member 902 for driving the connecting rod 901 upward.

[0060] In the embodiment of the present application, the seventh driving member 902 drives the connecting rod 901 to move upward to abut against the ejector pin 90, so that the ejector pin 90 ejects the forged sample. After the forged sample is taken out, the connecting rod 901 moves downward, and the ejector pin 90 also moves downward accordingly.

[0061] When the forging sample is poured, a pouring riser is generated at the position of the pouring gate 211. A cutter head 81 can be vertically slidably provided on the forging hydraulic press 8 to remove the riser before forging. The removed riser can be recycled into the furnace machine 1 for reuse.

[0062] Furthermore, the transport vehicle 4 is bolted with a second mounting frame 42 for placing the forged sample. A cover plate 43 is provided on the top of the second mounting frame 42. A heating device 421 for supplementing heat to the forged sample is provided on the cover plate 43.

[0063] In this embodiment of the present application, the heating device 421 can utilize multiple electric heating tubes. When the forged specimen is transported to the heat treatment area, the electric heating tubes can provide additional heat to the specimen to prevent it from cooling too quickly, thereby reducing the heating time of the forged specimen in the heat treatment furnace 10. This has the effect of improving the efficiency of steel ingot production.

[0064] In the embodiment of the present application, the first drive member 301, the fourth drive member 601, and the fifth drive member 621 can all use drive cylinders to drive the corresponding components to move. The second drive member 521 uses a drive motor to drive the first bracket 52 to rotate. The third drive member 531 uses a linear screw module to drive the vertical movement of the mounting plate 53. The sixth drive member 801 and the seventh drive member 902 both use electric push rods to drive the corresponding components to move. The transport vehicle 4 is equipped with a power supply (not shown in the figure) for powering the electric push rods and the electric heating tubes.

[0065] Furthermore, in order to prevent excessive heat loss of the forged sample, a heat radiation shielding layer 422 for heat insulation is provided on the inner wall of the second mounting frame 42 and the cover plate 43. The heat radiation shielding layer 422 can be made of ceramic fiber cotton.

[0066] Furthermore, heat storage layers are provided on the inner walls of the forging heating furnace 7 and the heat treatment furnace 10 .

[0067] The thermal storage layer is made of a phase-change thermal storage material, such as Al-Si alloy. This layer utilizes the residual heat from forging to store thermal energy, releasing it when the next batch of ingots is heated. This reduces the initial fuel heating requirement and conserves resources.

[0068] In another embodiment of the present application, the oxide scale produced during forging of the forging sample is mixed with slag in a ratio of 3:1, a binder is added and pressed into heat storage bricks, which can be used to repair the lining of the forging heating furnace 7 and the heat treatment furnace 10, and can also have a heat storage effect.

[0069] The implementation principle of the energy-saving production line for hot-feeding, forging and heat treatment of steel ingots integrated in the embodiment of the present application is as follows: the energy-saving production line for hot-feeding, forging and heat treatment of steel ingots integrated in the present application, through the furnace machine 1 and the steel ingot mold 2, can enable the factory to refine forging samples of required sizes according to the needs of the factory by itself, without having to rely on purchasing finished large steel ingots, and also avoid the waste of scraps and surplus materials; through the hot-feeding and hot-demolding methods, the forging samples can still be kept in a high temperature state when demolding, and there is no need to wait for them to cool to room temperature before heating and forging, which can reduce the time for heating the forging samples to the initial forging temperature, thereby reducing the fuel consumption in the forging heating furnace 7, and has the effect of saving resources.

[0070] Example 2

[0071] The present application discloses an energy-saving production method for integrating hot-rolling forging and heat treatment of steel ingots, which is applied with an energy-saving production line for integrating hot-rolling forging and heat treatment of steel ingots disclosed in Example 1, including the following steps:

[0072] S1: Put the steel ingot raw materials into the melting furnace 1 to melt into molten iron;

[0073] S2: Pour molten iron into multiple steel ingot molds 2 along the pouring port 211 to cast forging samples;

[0074] S3: The steel ingot mold 2 is transported to the mold opening mechanism 6 by the transport vehicle 4. The temperature of the forging sample can be detected by an infrared thermal imager. When the surface temperature of the forging sample is stable at 900±20℃ and the core temperature is not lower than 1150℃, red demoulding is performed;

[0075] S4: The forging sample after demoulding is placed in a forging heating furnace 7 and heated to the initial forging temperature. It is then taken out and placed on a forging hydraulic press 8 for forging. The initial forging temperature is 1180-1200°C.

[0076] S5: transporting the forged sample to the heat treatment furnace 10 by the transport vehicle 4 for normalizing treatment at a temperature of 850-900°C;

[0077] S6: Take out the forging sample after normalizing and air-cool it. After cooling, the formed steel ingot can be obtained.

[0078] In the embodiment of the present application, the temperature of the forging sample during demolding is detected with the help of an infrared thermal imager, which can avoid liquid residue caused by demolding too early or heat waste caused by demolding too late, and has the effect of saving resources.

[0079] During the process of transporting the forged sample to the heat treatment furnace 10 by the transport vehicle 4, the forged sample can be supplementally heated by the heating device 421 to ensure that the temperature of the forged sample entering the furnace is maintained within the range of 820-850°C. This prevents the forged sample from cooling too quickly and reduces the heating time of the forged sample in the furnace, thereby improving the production efficiency of the steel ingot.

[0080] Additionally, while the forged specimen is being normalized in the heat treatment furnace 10, a small amount of Nb / V alloying gas can be injected into the furnace. This utilizes the residual heat from the forging to alloy the surface, forming a nano-scale carburized strengthening layer. This improves the quality of the steel ingot produced.

[0081] Those skilled in the art will appreciate that while preferred embodiments of the present invention have been described, further variations and modifications may be made to these embodiments once those skilled in the art are aware of the underlying inventive concepts. Therefore, the appended claims are intended to be interpreted as encompassing the preferred embodiments and all variations and modifications that fall within the scope of the present invention. Clearly, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, the present invention is intended to encompass such modifications and variations as fall within the scope of the claims and their equivalents.

Claims

1. An integrated energy-saving production line for hot-feeding forging and heat treatment of steel ingots, characterized by: Including steelmaking area, forging area and heat treatment area, The steelmaking area is provided with a furnace (1) for melting molten iron and a plurality of steel ingot molds (2) for casting forged samples. A conveyor (3) for transporting the steel ingot molds (2) for molten iron casting and a plurality of transport vehicles (4) for transferring the steel ingot molds (2) are provided outside the furnace (1). A first transfer mechanism (5) for transferring the steel ingot molds (2) on the conveyor (3) to the transport vehicle (4) is provided at the discharge end of the conveyor (3). The forging area is provided with a plurality of die opening mechanisms (6) for demoulding the steel ingot mold (2) on the transport vehicle (4), a forging heating furnace (7) for heating the forging sample, and a forging hydraulic press (8) for forging the forging sample. A second transfer mechanism (9) for transferring the forging sample is also provided outside the die opening mechanism (6); A plurality of heat treatment furnaces (10) for normalizing are arranged in the heat treatment zone.

2. The energy-saving production line integrating hot-feeding, forging and heat treatment of steel ingots according to claim 1 is characterized in that: The conveyor (3) is provided with a first mounting frame (20), the first mounting frame (20) is provided with a guide pipe (201) for pouring molten iron, the top of the steel ingot mold (2) is provided with a pouring port (211), the first mounting frame (20) is provided with a first positioning member for positioning the pouring port (211) below the guide pipe (201), the first positioning member includes two first positioning columns (30) horizontally and linearly slidably arranged on both sides of the first mounting frame (20), the two sides of the steel ingot mold (2) are provided with first positioning grooves (212) for cooperating with the first positioning columns (30), and the first mounting frame (20) is provided with a first driving member (301) for driving the first positioning column (30) to move out of the first positioning groove (212) after pouring of the steel ingot mold (2) is completed.

3. The energy-saving production line integrating hot-feeding forging and heat treatment of steel ingots according to claim 1 is characterized in that: The first transfer mechanism (5) comprises a first mounting seat (51), a first bracket (52) is rotatably provided on the first mounting seat (51), a mounting plate (53) is vertically slidably provided on the first bracket (52), a first clamping claw (54) for clamping the steel ingot mold (2) is provided on the mounting plate (53), a second driving member (521) for driving the first bracket (52) to rotate is provided on the first mounting seat (51), and a third driving member (531) for driving the mounting plate (53) to move is provided on the first bracket (52); The second transfer mechanism (9) includes a second mounting seat (91), a second bracket (92) is connected to the second mounting seat (91) via a three-dimensional linear module, and the second bracket (92) is provided with a second clamping claw (93) for clamping the forged sample after demoulding; The first clamping jaw (54) is provided with a second positioning member for connecting to the steel ingot mold (2), and the transport vehicle (4) is provided with a third positioning member for connecting to the steel ingot mold (2).

4. The energy-saving production line integrating hot-feeding forging and heat treatment of steel ingots according to claim 3 is characterized in that: The second positioning member comprises a plurality of second positioning columns (40) arranged on the two inner side walls of the first clamping jaw (54), and a plurality of second positioning grooves (221) having sizes matching those of the second positioning columns (40) are provided on the two side walls of the steel ingot mold (2); The third positioning member includes a plurality of third positioning columns (50), the transport vehicle (4) is provided with a first mounting frame (41) for accommodating the steel ingot mold (2), the plurality of third positioning columns (50) are respectively arranged on both sides of the first mounting frame (41) for horizontal linear sliding, and a plurality of third positioning grooves (222) whose sizes are adapted to the third positioning columns (50) are opened on the other two side walls of the steel ingot mold (2), and the first mounting frame (41) is provided with a plurality of first elastic members (501) for driving the third positioning columns (50) to move one by one and to be plugged into and matched with the third positioning grooves (222).

5. The energy-saving production line integrating hot-feeding, forging and heat treatment of steel ingots according to claim 4 is characterized in that: The mold opening mechanism (6) includes a second mounting frame (61), a third bracket (62) is vertically movable on the second mounting frame (61), and plug-in plates (63) adapted to the first positioning groove (212) are horizontally linearly slidably provided on both sides of the third bracket (62), the steel ingot mold (2) includes an upper mold (21) and a lower mold (22), the first positioning groove (212) is provided on the side wall of the upper mold (21), the second positioning groove (221) and the third positioning groove (222) are provided on the side wall of the lower mold (22), and a plug-in plate (63) is provided on the third bracket (62) for driving the plug-in plate (63) to move and to engage with the second positioning groove (2 21) is plugged into a second elastic member (64), the second mounting frame (61) is provided with a vertically sliding abutting rod (60) for abutting the forging sample along the pouring port (211) to limit its movement with the upper die (21), the second mounting frame (61) is provided with a fourth driving member (601) for driving the abutting rod (60) to move, and a fifth driving member (621) for driving the third bracket (62) to move, the second mounting frame (61) is provided with a fourth positioning member for positioning the pouring port (211) below the abutting rod (60), and the lower die (22) is also provided with an ejection member for ejecting the forging sample after the die is opened.

6. The energy-saving production line integrating hot-feeding, forging and heat treatment of steel ingots according to claim 5, characterized in that: The fourth positioning member comprises a positioning plate (70) horizontally arranged on the second mounting frame (61), and the positioning plate (70) is provided with a positioning notch (701) for the first transport vehicle (4) to move into.

7. The energy-saving production line integrating hot-feeding, forging and heat treatment of steel ingots according to claim 5, characterized in that: A plurality of hammers (80) for striking the side wall of the steel ingot mold (2) are horizontally and linearly slidably arranged in the first installation frame (41), and a plurality of sixth driving members (801) for driving the hammers (80) to move one by one are provided on the first installation frame (41).

8. The energy-saving production line integrating hot-feeding, forging and heat treatment of steel ingots according to claim 5, characterized in that: The ejection component includes a push rod (90) vertically slidingly arranged in the lower mold (22), a sliding groove for the push rod (90) to slide vertically is opened through the bottom of the lower mold (22), a connecting rod (901) is vertically slidably arranged on the transport vehicle (4) for passing through the sliding groove and contacting the bottom of the push rod (90) to move it upward, and a seventh driving member (902) is provided on the transport vehicle (4) for driving the connecting rod (901) to move upward.

9. The energy-saving production line integrating hot-feeding, forging and heat treatment of steel ingots according to claim 1, characterized in that: The transport vehicle (4) is also provided with a second mounting frame (42) for placing the forged sample. The top of the second mounting frame (42) is provided with a cover plate (43). The cover plate (43) is provided with a heating device (421) for heating the forged sample.

10. An energy-saving production method integrating hot-forging and heat treatment of steel ingots, characterized by: The energy-saving production line for integrating hot-feeding forging and heat treatment of steel ingots according to any one of claims 1 to 9 is applied, comprising the following steps: S1: Putting steel ingot raw materials into a melting furnace (1) to smelt into molten iron; S2: pouring molten iron into a plurality of steel ingot molds (2) along a pouring port (211) to form forging samples; S3: The steel ingot mold (2) is transported to the mold opening mechanism (6) by the transport vehicle (4). When the surface temperature of the forging sample is stabilized at 900±20°C and the core temperature is not lower than 1150°C, red demoulding is performed; S4: placing the forged sample after demoulding into a forging heating furnace (7) and heating it to the initial forging temperature, then taking it out and placing it on a forging hydraulic press (8) for forging, with the initial forging temperature being 1180-1200°C; S5: transporting the forged sample to a heat treatment furnace (10) via a transport vehicle (4) for normalizing treatment at a temperature of 850-900°C; S6: Take out the forging sample after normalizing and air-cool it. After cooling, the formed steel ingot can be obtained.

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