High-strength and high-toughness isothermal quenching nodular cast iron smelting device and process thereof

Abstract

The invention discloses a high-strength and high-toughness isothermal quenching nodular cast iron smelting device and a process thereof, and relates to the technical field of steel smelting, the high-strength and high-toughness isothermal quenching nodular cast iron smelting device comprises a bottom plate, the top of the bottom plate is fixedly connected with a machining box, and the top of the machining box is adaptively provided with a top plate; by arranging the conveying part, argon in the conveying part can be conveyed into the machining box in the moving process of the driving part, crushing work is conducted in the argon environment, oxidation is avoided in the working process, and the machining efficiency is improved. The electric telescopic rods in the flow blocking box A and the flow blocking box B are started to push the baffles to move downwards, the outer walls of the baffles can block the interiors of the flowing openings in the moving process, airflow movement is blocked, therefore, the conveying piece cannot convey argon into the machining cavity, argon in the machining cavity cannot leak out, and the machining efficiency is improved. And therefore, the crushing work can be carried out in an argon environment and is prevented from being oxidized.

Description

Technical Field

[0001] The invention relates to the technical field of steel smelting, in particular to a high-strength and high-toughness isothermal quenching ductile iron smelting device and a process thereof. Background Art

[0002] Ductile iron castings are a type of high-strength cast iron material developed in the 1950s. Their comprehensive properties are close to those of steel. Based on their excellent properties, they have been successfully used to cast some parts with complex stresses and high requirements for strength, toughness and wear resistance.

[0003] During the existing graphite cast iron smelting, the recovered iron is crushed and then melted inside the furnace. In this way, impurities and attachments in the scrap iron can be separated by crushing. In the smelting process, the crushed scrap iron has better uniformity and increased packing density, which makes the magnetic field and heating in the furnace uniform, and the melting speed of molten iron is accelerated, thereby shortening the smelting time and reducing the power consumption per ton of molten iron.

[0004] In the existing graphite cast iron smelting, when smelting broken iron, the iron is easily oxidized because it is not protected in time. When it is put into the graphite cast iron smelter after oxidation, it is easy to cause further chemical reactions with other elements in the molten iron at high temperature to generate more oxides, which will not only consume the effective ingredients in the molten iron, but also may cause changes in the physical properties of the molten iron. These changes will affect the quality and performance of the final product. In addition, the oxidized iron is easily attached to the surface of the finished workpiece with iron oxide scale and dirt, so soft point defects are easily generated during quenching. Summary of the invention

[0005] The purpose of the present invention is to prevent more iron from being oxidized during the crushing process by performing an anti-oxidation treatment on the iron during crushing, and then to use argon gas sealing during storage to extend the retention time and prevent oxidation, thereby ensuring that the iron will not affect the effective components of the molten iron during melting and avoid the adhesion of oxides and dirt when the finished product is made, thereby providing a high-strength and high-toughness isothermal quenching ductile iron smelting device and process.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-strength and high-toughness isothermal quenching ductile iron smelting device, comprising a base plate, a processing box is fixedly connected to the top of the base plate, the top of the processing box is adapted to be installed with a top plate, a baffle is arranged on the back of the processing box, a driving member is arranged on the bottom of the baffle, a conveying member is fixedly connected to one side of the driving member, a collecting member is clamped on the bottom of the processing box, a guide pipe is fixedly connected to the other side of the top of the processing box, and a filtering collecting member is threadedly installed on the bottom of the guide pipe.

[0007] As a further solution of the present invention: the interior of the baffle comprises a battery, a wire A, a wire B, a plastic box, and a baffle box A; the back of the processing box is fixedly connected to the battery, one side of the battery is fixedly connected to the wire A, the other side of the battery is fixedly connected to the wire B, the junction of the wire B and the wire A is fixedly connected to the plastic box, the bottom of the wire B is connected in series with the baffle box A, and the bottom of the wire A is connected in series with the baffle box B; the baffle box A and the baffle box B are both provided with an active cavity, the bottom of the active cavity is provided with a flow port that penetrates the baffle box A and the baffle box B, the top of the flow port is provided with a baffle, and the top of the baffle is fixedly connected There is an electric telescopic rod, which is fixedly connected to the movable cavity, one side of the electric telescopic rod is fixedly connected to the bottom of the wire B, and the flow port opened in the baffle box A is connected to the inside of the guide tube; the bottom of the plastic box is fixedly connected to a heat-conducting copper plate, the top of the heat-conducting copper plate is fixedly connected to a heat-conducting silicone tube, the interior of the heat-conducting silicone tube is filled with nickel-titanium alloy, and insulating plates are attached to both ends of the nickel-titanium alloy. The outer wall of the insulating plate is fixedly connected to a rubber rod, and a reset spring is wound around the outer wall of the rubber rod. The rubber rod extends to one end of the outer wall of the heat-conducting silicone tube and is fixedly connected to a copper sheet, and the top of the copper sheet is fixedly connected to a wire C.

[0008] As a further solution of the present invention: the interior of the driving member includes an L-shaped fixing frame, a side tube A, a motor, a gear A, a gear B, a limiting rod, a sleeve plate, a pull-out rod, a cylinder A and an air storage box; the outer wall of the processing box is installed with an L-shaped fixing frame located below the battery; the bottom of the L-shaped fixing frame is fixedly connected to the outer wall of the processing box; the top of the L-shaped fixing frame is fixedly connected to the motor; the outer wall of the motor is fixedly sleeved with gear A; the outer wall of the processing box is rotatably connected with a gear B meshing with gear A; the side of the gear B away from the processing box is fixedly connected with the limiting rod; the outer wall of the limiting rod is movably sleeved with the sleeve plate; the side of the sleeve plate is fixedly connected with the pull-out rod; the pull-out rod is movably sleeved with cylinder A; An end of the cylinder A away from the sleeve is fixedly connected to a gas storage box, the bottom of the gas storage box is fixedly connected to the side tube A, and the bottom of the side tube A extends to the interior of the processing box; an air storage cavity is provided inside the gas storage box and the cylinder A, the interior of the gas storage cavity is movably sleeved with a piston A, the outer wall of the piston A is fixedly connected to the end of the pulling rod away from the sleeve, and the interior of the gas storage cavity is filled with nitrogen; the bottom inner cavity of the side tube A is movably sleeved with a piston B, the top of the piston B is fixedly connected with a telescopic rod extending to the outside of the side tube A, the top of the telescopic rod is fixedly connected with a rotating rod, both ends of the rotating rod are movably sleeved with torsion springs, both ends of the rotating rod are movably sleeved with a bearing plate, and the torsion spring is located at the connection between the bearing plate and the rotating rod.

[0009] As a further solution of the present invention: the interior of the conveying member includes a connecting pipe A, an air storage box, a one-way valve, a connecting pipe B, an extrusion plug, a storage cavity and a resistance wire, the side of the air storage box is fixedly connected to the connecting pipe A, one side of the connecting pipe A is fixedly connected to the air storage box, the air storage box is fixedly connected to the side of the processing box through a fixing rod, the bottom of the surface of the air storage box is fixedly connected to the one-way valve, the bottom of the air storage box is fixedly connected to the connecting pipe B, the interior of the air storage box is provided with a storage cavity, the top of the storage cavity is movably connected to the extrusion plug, both sides of the bottom of the storage cavity are fixedly connected to the resistance wire, the bottom of the extrusion plug is filled with argon gas, And the argon gas is located inside the storage chamber; the bottom of the connecting tube B is fixedly connected to the gas collecting box, and a plurality of exhaust pipes are fixedly installed on the top of the gas collecting box. The interior of the exhaust pipe is movably sleeved with the venting pipe, and the bottom of the venting pipe is fixedly connected with a limit plug. Side ports are opened on both sides of the venting pipe, and the outer wall of the side port and the inner wall of the exhaust pipe fit each other. The outer wall of the limit plug is fitted with a spring, and the outer wall of the spring and the outer wall of the venting pipe are intertwined with each other. The top of the venting pipe is fixedly connected with a choke plug, and the bottom of the choke plug and the top of the exhaust pipe fit each other. The interior of the connecting tube B is fixedly sleeved with the choke box B.

[0010] As a further solution of the present invention: the interior of the processing box includes a processing cavity, a heat-conducting copper tube, a rotating shaft, a crushing blade, and a roll bar. The processing box is provided with a processing cavity inside, and one side of the top of the processing cavity is fixedly connected to the heat-conducting copper tube, and a rotating shaft is provided at the bottom of the heat-conducting copper tube. The other side of the rotating shaft is movably connected to the interior of the processing cavity, one side of the rotating shaft is fixedly connected to the motor, and the outer wall of one side of the rotating shaft is fixedly sleeved with gear A, the surface of the rotating shaft located inside the processing cavity is fixedly connected with a crushing blade, the bottom of the crushing blade is fixedly connected to the rotating shaft, the outer wall of the roll bar is fixedly connected to the inside of the processing cavity, the air collecting box is located at the bottom of the processing cavity, the crushing blade is located at the top of the processing, and a bearing plate is provided between the crushing blade and the air collecting box.

[0011] As a further solution of the present invention: the interior of the collecting component includes a collecting box, a handle, an observation tube, a connecting groove, and a sealing plug. A connecting groove is opened on the top of the collecting box, and the top of the connecting groove is clamped with a sealing plug. The handles are fixedly connected to the outer walls of both sides of the collecting box, and the surface of the collecting box is fixedly connected to the observation tube. The interior of the connecting groove and the bottom of the processing box are adapted to each other.

[0012] As a further solution of the present invention: the interior of the filter collecting element includes an outer cylinder, a threaded block, a filter cloth, and a top opening. The outer cylinder is opened on the circumferential outer wall of the outer cylinder, and the top opening is opened on the top of the outer cylinder. The filter cloth is sleeved on the interior of the outer cylinder, the bottom of the outer cylinder is threadedly connected to the threaded block, and the interior of the top opening is threadedly connected to the bottom of the guide tube.

[0013] As a further solution of the present invention: comprising the following steps;

[0014] S1. Exhaust steps: first, inlay and install the bottom of the collection box and the processing box, then separate the top plate from the processing box, and then throw iron into the processing box through the top of the processing box. After throwing, clamp the bottom of the top plate on the top of the processing box, connect the one-way valve to the existing argon gas delivery pipeline, and deliver argon gas to the gas storage box. Then, the motor can be started to work. When working, the motor will drive gear A to rotate, and gear B meshing with gear A will also rotate, and the limit rod and pull rod sleeved on the outer wall of gear B will be inside cylinder A. It performs reciprocating motion. During the motion, the gas inside the gas storage box will be squeezed and enter the connecting pipe A and the baffle box B respectively. When the gas enters the connecting pipe A, it will push the extrusion plug downward, and squeeze the internal argon gas of the connecting pipe B into the processing box. Because argon is heavier than air, it will sink when entering the processing box, while the air can only reach the top of the argon. As the argon is continuously stored in the processing box, the air can be gradually discharged from the inside of the processing box to prevent the iron sheet from being oxidized after being broken, thereby protecting it.

[0015] S2. Crushing step: When the fragments enter the interior of the processing box, they will be carried by the carrying plate. Similarly, the motor will drive the internally connected shaft to rotate during the rotation process. When the shaft rotates, the crushing blade fixedly connected to the outer wall will also rotate. At this time, the iron sheets on the surface of the carrying plate can be crushed. In step S2, a gas will enter the interior of the side tube A. When the gas enters the interior of the side tube A, the carrying plate will be slowly lifted up so that the carrying plate can exert a certain pressure on the iron on the top, and the friction with the crushing blade will become larger, thereby facilitating rapid crushing.

[0016] S3, storage step: when the pulling rod in step one is being recovered, the gas inside the side tube A will be drawn into the gas storage box. Similarly, the supporting plate in step two will be slowly driven downward by the telescopic rod, causing the side of the supporting plate to contact the limit rod and tilt. At this time, the broken materials on the surface of the supporting plate will fall into the collection box for storage, thereby avoiding oxidation. During the melting process, the collection box can be directly thrown into the molten iron for melting. Because the interior of the collection box is hollow, it melts faster.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. By setting the conveying part, the driving part can convey the argon gas inside the conveying part into the processing box during the movement, so that the crushing can work in the argon environment to avoid oxidation during the work. The electric telescopic rods inside the baffle box A and the baffle box B are started to push the baffle plate to move downward. During the movement, the outer wall of the baffle plate will block the inside of the flow port to block the air flow. Therefore, the conveying part will not convey argon gas to the inside, and the argon gas inside the processing chamber will not leak out, so that the crushing work can be carried out in the argon environment to avoid oxidation;

[0019] 2. Through the set driving parts, gas can be transported and crushed materials can be dumped at the same time during the crushing process, thereby improving work efficiency. The piston A fixedly connected to the outer wall of the pull rod will squeeze the gas inside the gas storage chamber, so that the gas will enter the connecting pipe A and the side pipe A. The gas can enter the top of the gas storage box through the connecting pipe A and push the extrusion plug downward. During the movement, the internal argon gas will be squeezed, so that it will be directly transported into the gas collecting box through the connecting pipe B, and the gas will be discharged through the gas collecting box. When discharged, the gas will enter the inside of the venting pipe. When the gas density becomes larger When the side port is out of contact, the gas will be discharged from the inside of the side port into the inside of the processing box, thereby forming a ventilation effect. When the pull rod extends from the inside of the cylinder A, the piston A will recycle the air into the inside of the gas storage box. Similarly, the inside of the side tube A will also form a suction force to shrink the piston B and the telescopic rod inward. During the shrinkage, the bearing plate will move downward, so that the side of the bearing plate and the top of the limit rod will fit each other. Through the downward pulling force, the bearing plate will tilt. During the tilting process, the material will pour from the surface of the bearing plate into the bottom of the processing cavity for collection.

[0020] 3. Through the set collecting piece, when argon gas enters the processing chamber, it will sink to the bottom of the collecting box, and the air inside the collecting box will be squeezed out. When the crushed materials are stored in the collecting box, the argon gas inside can protect them to prevent oxidation. When loading is completed, the sealing plug is clamped into the inside of the connecting groove to form a seal, and a pin is clamped inside the observation tube. Before melting, the pin can be opened to observe whether the material inside the collecting box is oxidized. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a side structural schematic diagram of the present invention;

[0023] Figure 3 This is a schematic diagram of the overall internal structure of the baffle box of the present invention;

[0024] Figure 4This is a schematic diagram of the overall internal structure of the plastic box of the present invention;

[0025] Figure 5 For the present invention Figure 1 A schematic diagram of the enlarged structure at point A;

[0026] Figure 6 It is a schematic diagram of the overall internal structure of the box A of the present invention;

[0027] Figure 7 It is a schematic diagram of the overall structure of the side surface of the load-bearing plate of the present invention;

[0028] Figure 8 It is a cross-sectional view of the overall internal structure of the air storage box of the present invention;

[0029] Fig. 9 This is a schematic diagram of the overall structure of the bottom of the connecting pipe B of the present invention;

[0030] Fig.10 It is a schematic diagram of the overall two-dimensional internal structure of the processing box of the present invention;

[0031] Fig.11 This is a schematic diagram of the overall structure of the collection box of the present invention;

[0032] Fig.12 This is a schematic diagram of the overall structure of the bottom of the outer cylinder of the present invention;

[0033] Fig.13 This is a schematic diagram of the cross-sectional structure of the vent pipe of the present invention;

[0034] Fig.14 It is a schematic diagram of the one-way valve pipe air intake structure of the present invention.

[0035] In the figure: 10, bottom plate; 20, processing box; 201, processing cavity; 202, heat-conducting copper tube; 203, rotating shaft; 204, crushing blade; 205, roll bar; 30, top plate; 40, flow block; 41, battery; 42, wire A; 43, wire B; 44, plastic box; 441, thermally conductive silicone tube; 442, thermally conductive copper plate; 443, nickel-titanium alloy; 444, rubber rod; 445, insulating plate; 446, wire C; 447, copper sheet; 448, reset spring; 45, flow block box A; 46, baffle; 47, flow port; 48, electric telescopic rod; 49, flow block box B; 50, driving part; 51, L-shaped fixing frame; 52, side tube A; 53, motor; 54, gear A; 55, gear B; 56, limit rod; 57, sleeve plate; 58, pull-out Rod; 59, cylinder A; 510, gas storage box; 511, piston A; 513, gas storage chamber; 515, bearing plate; 517, piston B; 518, telescopic rod; 519, rotating rod; 520, torsion spring; 60, conveying member; 61, connecting pipe A; 62, gas storage box; 63, one-way valve; 64, connecting pipe B; 65, extrusion plug; 67, storage chamber; 68, resistance wire; 69, gas collecting box; 610, exhaust pipe; 611, limit plug; 612, vent pipe; 613, side port; 614, flow blocking plug; 615, spring; 70, collecting member; 71, collecting box; 72, handle; 73, observation tube; 74, connecting groove; 75, sealing plug; 80, guide tube; 90, filter collecting member; 91, outer cylinder; 92, threaded block; 93, filter cloth; 94, top port. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0038] Example 1

[0039] See also Figure 1 to Figure 14 The present embodiment provides a high-strength and high-toughness isothermal quenching ductile iron smelting device, comprising a bottom plate 10, a processing box 20 is fixedly connected to the top of the bottom plate 10, a top plate 30 is adapted to be installed on the top of the processing box 20, a flow blocker 40 is arranged on the back of the processing box 20, a driving member 50 is arranged on the bottom of the flow blocker 40, a conveying member 60 is fixedly connected to one side of the driving member 50, a collecting member 70 is clamped at the bottom of the processing box 20, a guide pipe 80 is fixedly connected to the other side of the top of the processing box 20, and a filter collecting member 90 is threadedly installed on the bottom of the guide pipe 80;

[0040] During the operation, the top plate 30 is first removed from the top of the processing box 20, and then the raw materials are thrown through the top of the processing box 20. At that time, argon gas is replenished into the interior of the conveying member 60, and then the driving member 50 is started, so that the material is crushed inside the processing box 20. During the crushing process, the conveying member 60 can continuously replenish gas to the interior, thereby replacing the internal air to avoid giving sufficient time for the material to form an oxidation reaction. The crushed material will directly enter the interior of the collecting member 70 for sealing, which is convenient for subsequent use.

[0041] Embodiment 2: The interior of the processing box 20 includes a processing chamber 201, a heat-conducting copper tube 202, a rotating shaft 203, a crushing blade 204, and a roll bar 205. The processing chamber 201 is opened inside the processing box 20. The top side of the processing chamber 201 is fixedly connected to the heat-conducting copper tube 202. The bottom of the heat-conducting copper tube 202 is provided with a rotating shaft 203. One end of the rotating shaft 203 extends to the outside of the processing chamber 201. The end of the rotating shaft 203 extending outside the processing chamber 201 is connected to the motor 53. , and the outer wall of the rotating shaft 203 near the motor 53 is fixedly sleeved with the gear A54, the surface of the rotating shaft 203 located inside the processing chamber 201 is fixedly connected with a crushing blade 204, the bottom of the crushing blade 204 is fixedly connected to the rotating shaft 203, the outer wall of the roll bar 205 is fixedly connected to the inside of the processing chamber 201, the air collecting box 69 is located at the bottom of the processing chamber 201, the crushing blade 204 is located at the top of the processing chamber 201, and a bearing plate is set between the crushing blade 204 and the air collecting box 69 515, the interior of the baffle 40 includes a battery 41, a wire A42, a wire B43, a plastic box 44, and a baffle box A45. The back of the processing box 20 is fixedly connected to the battery 41, one side of the battery 41 is fixedly connected to the wire A42, the other side of the battery 41 is fixedly connected to the wire B43, the junction of the wire B43 and the wire A42 is fixedly connected to the plastic box 44, the bottom of the wire B43 is connected in series with the baffle box A45, and the bottom of the wire A42 is connected in series with the baffle box B49; the baffle boxes A45 and B49 are both provided with movable cavities, the bottom of the movable cavities are provided with a flow port 47 that penetrates the baffle boxes A45 and B49, a baffle plate 46 is provided at the top of the flow port 47, an electric telescopic rod 48 is fixedly connected to the top of the baffle plate 46, the electric telescopic rod 48 is fixedly connected to the movable cavity, one side of the electric telescopic rod 48 is fixedly connected to the bottom of the wire B43, and the flow port 47 provided in the baffle box A45 is communicated with the inside of the guide tube 80;The bottom of the plastic box 44 is fixedly connected with a heat-conducting copper plate 442, the top of the heat-conducting copper plate 442 is fixedly connected with a heat-conducting silicone tube 441, the interior of the heat-conducting silicone tube 441 is filled with nickel-titanium alloy 443, both ends of the nickel-titanium alloy 443 are attached with insulating plates 445, the outer wall of the insulating plate 445 is fixedly connected with a rubber rod 444, the outer wall of the rubber rod 444 is wrapped with a return spring 448, the rubber rod 444 extends to one end of the outer wall of the heat-conducting silicone tube 441 and is fixedly connected with a copper sheet 447, the top of the copper sheet 447 is fixedly connected with a wire C446, the interior of the driving member 50 includes an L-shaped fixing frame 51, a side tube A52, a motor 53, a gear A54, a gear B55, a limit rod 56, a sleeve plate 57, a pull rod 58, The outer wall of the processing box 20 is provided with an L-shaped fixing frame 51 located below the battery 41. The bottom of the L-shaped fixing frame 51 is fixedly connected to the outer wall of the processing box 20. The top of the L-shaped fixing frame 51 is fixedly connected to the motor 53. The outer wall of the motor 53 is fixedly sleeved with a gear A54. The outer wall of the processing box 20 is rotatably connected with a gear B55 meshing with the gear A54. The gear B55 is fixedly connected to a limit rod 56 on the side away from the processing box 20. The outer wall of the limit rod 56 is movably sleeved with a sleeve plate 57. The side of the sleeve plate 57 is fixedly connected with a pull rod 58. The pull rod 58 is movably sleeved with a cylinder A59. The end of the cylinder A59 away from the sleeve plate 57 is fixedly connected with the gas storage box 510. The bottom of the gas storage box 510 The bottom of the side tube A52 is fixedly connected to the side tube A52, and the bottom of the side tube A52 extends to the interior of the processing box 20; the interior of the gas storage box 510 and the cylinder A59 are provided with a gas storage chamber 513, the interior of the gas storage chamber 513 is movably sleeved with the piston A511, the outer wall of the piston A511 and the end of the pulling rod 58 away from the sleeve plate 57 are fixedly connected, and the interior of the gas storage chamber 513 is filled with nitrogen; the bottom inner cavity of the side tube A52 is movably sleeved with the piston B517, the top of the piston B517 is fixedly connected with a telescopic rod 518 extending to the outside of the side tube A52, the top of the telescopic rod 518 is fixedly connected with a rotating rod 519, both ends of the rotating rod 519 are movably sleeved with the torsion spring 520, and the two ends of the rotating rod 519 are movably sleeved with the bearing plate 515, and the torsion spring 520 is movably sleeved with the bearing plate 515. The spring 520 is located at the connection between the carrier plate 515 and the rotating rod 519. The interior of the conveying member 60 includes a connecting pipe A61, an air storage box 62, a one-way valve 63, a connecting pipe B64, an extrusion plug 65, a storage chamber 67 and a resistance wire 68. The side of the air storage box 510 is fixedly connected to the connecting pipe A61, one side of the connecting pipe A61 is fixedly connected to the air storage box 62, the air storage box 62 is fixedly connected to the side of the processing box 20 through a fixing rod, the bottom of the surface of the air storage box 62 is fixedly connected to the one-way valve 63, the bottom of the air storage box 62 is fixedly connected to the connecting pipe B64, the interior of the air storage box 62 is provided with a storage chamber 67, the top of the storage chamber 67 is movably connected to the extrusion plug 65, and both sides of the bottom of the storage chamber 67 are fixedly connected to the resistance wire 68;The bottom of the connecting pipe B64 is fixedly connected to the gas collecting box 69, and a plurality of exhaust pipes 610 are fixedly installed on the top of the gas collecting box 69. The exhaust pipe 610 is movably sleeved inside the exhaust pipe 612, and the bottom of the exhaust pipe 612 is fixedly connected to the limit plug 611. Side ports 613 are provided on both sides of the exhaust pipe 612, and the outer wall of the side port 613 and the inner wall of the exhaust pipe 610 fit each other. The outer wall of the limit plug 611 fits the spring 615, and the outer wall of the spring 615 and the outer wall of the exhaust pipe 612 are intertwined with each other. The top of the exhaust pipe 612 is fixedly connected with a choke plug 614, and the bottom of the choke plug 614 and the top of the exhaust pipe 610 fit each other. The inside of the connecting pipe B64 is fixedly sleeved with the choke box B49, and the bottom of the extrusion plug 65 is filled with argon gas, and the argon gas is located inside the storage chamber 67.

[0042] Start the motor 53 to rotate the rotating shaft 203 connected to the motor 53. At this time, the gear A54 fixedly sleeved on the rotating shaft 203 will be driven, and the gear B55 meshingly connected on the side will be driven to rotate during the driving process. During the rotation of the gear B55, the limit rod 56 fixedly connected on the surface will make a longitudinal reciprocating motion inside the sleeve plate 57 sleeved on the outer wall. During the reciprocating motion of the limit rod 56, the sleeve plate 57 will make a transverse reciprocating motion on the surface of the gear B55. Therefore, the pull rod 58 fixedly connected to the side of the sleeve plate 57 will also make a transverse reciprocating motion inside the cylinder A59. During the process of the pull rod 58 extending into the cylinder A59, the piston A511 fixedly connected to the outer wall of the pull rod 58 will squeeze the gas inside the gas storage chamber 513, so that the gas will enter the connecting pipe A61 and the side pipe A52. The gas can enter the top of the gas storage box 62 through the connecting pipe A61 and push the extrusion plug 65 to move downward. During the movement, the internal argon gas will be squeezed so that it will pass through the connecting pipe B64 directly. The gas is then transported into the interior of the gas collecting box 69, and the gas is discharged through the gas collecting box 69. When discharged, the gas enters the interior of the vent pipe 612. When the gas density becomes larger, the vent pipe 612 is lifted up and slowly extends out from the top of the exhaust pipe 610. When the side port 613 is out of contact with the exhaust pipe 610, the gas is discharged from the inside of the side port 613 into the interior of the processing box 20, thereby forming a ventilation effect. In the process of pulling the pull rod 58 outward, the piston A511 will take back the discharged gas, and the squeeze plug 65 will stop. The argon gas in the storage chamber 67 no longer impacts the choke 614, causing the air pressure balance springs 615 on both sides of the choke 614 to shrink and recover, driving the vent pipe 612 to recover, thereby preventing gas from flowing back. In the process of recovering gas, the above-mentioned parts form a negative pressure difference on the top of the squeeze plug 65, causing the squeeze plug 65 to move upward. At this time, suction is formed at the bottom of the squeeze plug 65, causing the one-way valve 63 to be opened, and argon gas is replenished into the gas storage box 62. Figure 10Fourth, it should be noted that the one-way valve 63 can only take in air but not exhaust it. When the extrusion plug 65 moves upward, argon can be replenished. In the process of conveying argon, the resistance wire 68 can be started to preheat the argon. The temperature of the resistance wire 68 can be controlled at forty to fifty degrees, so as to facilitate the heating of the argon. The mass of argon is greater than the mass of air. When the argon enters the interior of the processing chamber 201, it will sink to the bottom, and the air at the bottom of the processing chamber 201 will be placed on the top of the argon. It should be noted that the thermal conductivity of air is poor. When the heated argon enters the interior of the processing chamber 201, the air is located at the top of the processing chamber 201, and the argon is located at the bottom of the processing chamber 201. The air forms an insulating layer, so that the top of the processing chamber 201 is in a constant temperature state. Therefore, the nickel-titanium alloy 443 fixedly sleeved inside will not expand. The argon is continuously replenished so that the air inside the processing box 20 will be discharged from the top. When the air is completely discharged, the argon will fill the interior of the processing chamber 201. At that time, the internal temperature of the processing chamber 201 becomes high, from Fig.10 It can be seen that the top of the heat-conducting copper tube 202 is fixedly connected to the bottom of the plastic box 44, and the heat-conducting copper tube 202 extends to the inside of the processing chamber 201. The temperature can be transferred to the heat-conducting copper plate 442 through the heat-conducting copper tube 202, and then the heat-conducting copper plate 442 conducts the temperature into the inside of the plastic box 44. When the nickel-titanium alloy 443 senses the temperature rise, it will expand. During the expansion process, it will push the insulating plate 445 and the rubber rod 444 to extend outward. During the extension, the return spring 448 sleeved on the outer wall of the rubber rod 444 is squeezed and deformed. At the same time, the copper sheet 447 fixedly connected to the outer wall of the rubber rod 444 will contact the wire A42 and the wire B43, and the circuit will be closed through the wire C446. At this time, the circuit is closed, and the electric telescopic rod 48 inside the choke box A45 and the choke box B49 can be started to push the baffle 46 It moves downward, and during the movement, the outer wall of the baffle 46 will block the inside of the flow port 47, blocking the air flow movement. Therefore, the conveying member 60 will not transport argon to the inside, and the argon inside the processing chamber 201 will not leak out, so that the crushing work can be carried out in an argon environment to avoid oxidation. It should also be explained that a circular opening is opened on the top side of the processing chamber 201, and the circular opening is connected with the flow port 47 so that the internal air can pass through the circular opening and be transported into the inside of the guide tube 80 for discharge. In the process of the baffle 46 fitting with the flow port 47, the path connecting the circular opening and the guide tube 80 can be blocked to avoid exhausting all the time. It should also be noted that the internal structure of the baffle box A45 is the same as that of the baffle box B49, except that the installation position of the baffle box B49 is slightly different, but the movement mode remains unchanged and will not be elaborated. Fig.10It can be seen that when the material is transported into the processing chamber 201, it will be carried by the carrying plate 515. When the motor 53 drives the rotating shaft 203 to rotate, the crushing blade 204 can also rotate. At this time, the crushing blade 204 can crush the material on the surface of the carrying plate 515. Therefore, when the gas enters the side pipe A52, the piston B517 will be slowly lifted up. When it is lifted up, the carrying plate 515 connected to the telescopic rod 518 will also move upward, so that the material on the top of the carrying plate 515 is tightly attached to the outer wall of the crushing blade 204. The friction force can be increased to make the material more finely broken. A number of fine holes are provided inside the bearing plate 515 to allow the argon gas to pass through. When the pulling rod 58 extends from the inside of the cylinder A59, the piston A511 will recycle the air into the inside of the gas storage box 510. Similarly, the inside of the side tube A52 will also form a suction force to shrink the piston B517 and the telescopic rod 518 inward. When shrinking, the bearing plate 515 will move downward, so that the side of the bearing plate 515 will fit the top of the roll bar 205. Through the downward pulling force, the bearing plate 515 The plate 515 will tilt, and during the tilting process, the material will pour from the surface of the supporting plate 515 into the bottom of the processing chamber 201 for collection. When the piston B517 pushes the telescopic rod 518 upward again, the tilting force on the supporting plate 515 disappears, and the force on the deformation of the torsion spring 520 disappears, causing the torsion spring 520 to reset and restore the supporting plate 515 to a parallel state. The interior of the processing chamber 201 is an insulation layer to prevent the rapid loss of argon gas temperature. When the crushing is completed, the electric telescopic rod 48 is started so that the baffle 46 is Stretched to its original position, the flow port 47 can be connected to the above-mentioned parts, so that external air can enter the interior of the processing chamber 201, thereby lowering the internal temperature of the processing chamber 201, and the nickel-titanium alloy 443 can shrink. During shrinkage, the squeezing force on the reset spring 448 disappears, causing the reset spring 448 to reset. During the resetting process, the extended rubber rod 444 will be pulled back to the interior. At that time, the copper sheet 447 fixedly connected to the outer wall of the rubber rod 444 cannot contact the wire A42 and the wire B43 to disconnect the circuit, thereby saving resources.

[0043] Embodiment 3, the interior of the collecting member 70 includes a collecting box 71, a handle 72, an observation tube 73, a connecting groove 74, and a sealing plug 75. The top of the collecting box 71 is provided with a connecting groove 74, the top of the connecting groove 74 is clamped with the sealing plug 75, the outer walls of both sides of the collecting box 71 are fixedly connected to the handle 72, the surface of the collecting box 71 is fixedly connected to the observation tube 73, and the interior of the connecting groove 74 and the bottom of the processing box 20 are adapted to each other;

[0044] During the installation process, the sealing plug 75 is pulled out from the inside of the collecting box 71, so that the inside of the connecting groove 74 can be embedded and installed with the bottom of the processing box 20. When the argon gas enters the inside of the processing chamber 201, it will sink to the inside of the collecting box 71, and the air inside the collecting box 71 will be squeezed out. When the crushed materials are stored in the collecting box 71, the argon gas inside can protect them from oxidation. When the loading is completed, the sealing plug 75 is clamped into the inside of the connecting groove 74 to form a seal, and a pin is clamped inside the observation tube 73. Before melting, the pin can be opened to observe whether the material inside the collecting box 71 is oxidized. The collecting box 71 can be thrown into the molten iron for melting during the melting process through the handle 72. Because the inside of the collecting box 71 is hollow, the melting efficiency is not affected during melting.

[0045] Embodiment 4, the interior of the filter collecting member 90 includes an outer cylinder 91, a threaded block 92, a filter cloth 93, and a top opening 94. The outer cylinder 91 is provided on the circumferential outer wall, the top opening 94 is provided on the top of the outer cylinder 91, the filter cloth 93 is sleeved inside the outer cylinder 91, the bottom of the outer cylinder 91 is threadedly connected to the threaded block 92, and the inside of the top opening 94 is threadedly connected to the bottom of the guide tube 80;

[0046] During the gas discharge process, it will enter the interior of the outer cylinder 91 through the guide tube 80, and then the filter cloth 93 can filter and collect the dust mixed in the air to avoid direct discharge into the air. It can also effectively prevent the dust from accumulating inside the processing chamber 201, and avoid the dust from being collected inside the collection box 71, so that dust explosion will not occur during melting.

[0047] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-strength and high-toughness isothermal quenching ductile iron smelting device, characterized in that: The invention comprises a bottom plate (10), the top of the bottom plate (10) is fixedly connected to a processing box (20), the top of the processing box (20) is adapted to be mounted with a top plate (30), a flow blocking member (40) is arranged on the back of the processing box (20), a driving member (50) is arranged on the bottom of the flow blocking member (40), a conveying member (60) is fixedly connected to one side of the driving member (50), a collecting member (70) is clamped on the bottom of the processing box (20), a guide pipe (80) is fixedly connected to the other side of the top of the processing box (20), and a filter collecting member (90) is threadedly mounted on the bottom of the guide pipe (80).

2. A high-strength and high-toughness austempered ductile iron smelting device according to claim 1, characterized in that: The interior of the baffle (40) includes a battery (41), a wire A (42), a wire B (43), a plastic box (44), and a baffle box A (45); the back of the processing box (20) is fixedly connected to the battery (41); one side of the battery (41) is fixedly connected to the wire A (42); the other side of the battery (41) is fixedly connected to the wire B (43); the junction of the wire B (43) and the wire A (42) is fixedly connected to the plastic box (44); the bottom of the wire B (43) is connected in series with the baffle box A (45); and the bottom of the wire A42 is connected in series with the baffle box B (49); The baffle box A (45) and the baffle box B (49) are both provided with an active cavity inside, a flow port (47) penetrating the baffle box A (45) and the baffle box B (49) is provided at the bottom of the active cavity, a baffle plate (46) is provided at the top of the flow port (47), an electric telescopic rod (48) is fixedly connected to the top of the baffle plate (46), the electric telescopic rod (48) is fixedly connected to the active cavity, one side of the electric telescopic rod (48) is fixedly connected to the bottom of the wire B (43), and the flow port (47) provided inside the baffle box A (45) is communicated with the inside of the guide tube (80); The bottom of the plastic box (44) is fixedly connected to a heat-conducting copper plate (442), the top of the heat-conducting copper plate (442) is fixedly connected to a heat-conducting silicone tube (441), the interior of the heat-conducting silicone tube (441) is filled with nickel-titanium alloy (443), both ends of the nickel-titanium alloy (443) are fitted with insulating plates (445), the outer wall of the insulating plate (445) is fixedly connected to a rubber rod (444), the outer wall of the rubber rod (444) is wound with a return spring (448), the rubber rod (444) extends to one end of the outer wall of the heat-conducting silicone tube (441) and is fixedly connected to a copper sheet (447), and the top of the copper sheet (447) is fixedly connected to a wire C (446).

3. A high-strength and high-toughness isothermal quenching ductile iron smelting device according to claim 2, characterized in that: The interior of the driving member (50) comprises an L-shaped fixing frame (51), a side tube A (52), a motor (53), a gear A (54), a gear B (55), a limit rod (56), a sleeve plate (57), a pull rod (58), a cylinder A (59) and an air storage box (510); the outer wall of the processing box (20) is provided with an L-shaped fixing frame (51) located below the battery (41); the bottom of the L-shaped fixing frame (51) is fixedly connected to the outer wall of the processing box (20); the top of the L-shaped fixing frame (51) is fixedly connected to the motor (53); the outer wall of the motor (53) is fixedly sleeved with the gear A (54); the processing box ( The outer wall of the processing box (20) is rotatably connected to a gear B (55) meshing with a gear A (54); the gear B (55) is fixedly connected to a limiting rod (56) on a side away from the processing box (20); the outer wall of the limiting rod (56) is movably connected to a sleeve plate (57); the side of the sleeve plate (57) is fixedly connected to a pull-out rod (58); the pull-out rod (58) is movably connected to a tube A (59); the tube A (59) is fixedly connected to an air storage box (510) at one end away from the sleeve plate (57); the bottom of the air storage box (510) is fixedly connected to a side tube A (52); the bottom of the side tube A (52) extends to the interior of the processing box (20); The gas storage box (510) and the cylinder A (59) are both provided with a gas storage chamber (513), the gas storage chamber (513) is movably sleeved with a piston A (511), the outer wall of the piston A (511) is fixedly connected to an end of the pull rod (58) away from the sleeve plate (57), and the gas storage chamber (513) is filled with nitrogen; The bottom inner cavity of the side tube A (52) is movably sleeved with a piston B (517); the top of the piston B (517) is fixedly connected with a telescopic rod (518) extending to the outside of the side tube A (52); the top of the telescopic rod (518) is fixedly connected with a rotating rod (519); both ends of the rotating rod (519) are movably sleeved with torsion springs (520); both ends of the rotating rod (519) are movably sleeved with a bearing plate (515), and the torsion spring (520) is located at the connection between the bearing plate (515) and the rotating rod (519).

4. A high-strength and high-toughness isothermal quenching ductile iron smelting device according to claim 3, characterized in that: The interior of the conveying member (60) comprises a connecting pipe A (61), an air storage box (62), a one-way valve (63), a connecting pipe B (64), an extrusion plug (65), a storage chamber (67) and a resistance wire (68); the side of the air storage box (510) is fixedly connected to the connecting pipe A (61); one side of the connecting pipe A (61) is fixedly connected to the air storage box (62); the air storage box (62) is fixedly connected to the side of the processing box (20) via a fixing rod; the bottom of the surface of the air storage box (62) is fixedly connected to the one-way valve (63); the bottom of the air storage box (62) is fixedly connected to the connecting pipe B (64); the interior of the air storage box (62) is provided with a storage chamber (67); the top of the storage chamber (67) is movably sleeved with the extrusion plug (65); both sides of the bottom of the storage chamber (67) are fixedly connected to the resistance wire (68); the bottom of the extrusion plug (65) is filled with argon gas, and the argon gas is located inside the storage chamber (67); The bottom of the connecting pipe B (64) is fixedly connected to the air collecting box (69), and a plurality of exhaust pipes (610) are fixedly installed on the top of the air collecting box (69). The exhaust pipe (610) is movably sleeved inside the exhaust pipe (612), and the bottom of the exhaust pipe (612) is fixedly connected to a stopper (611). Side openings (613) are provided on both sides of the exhaust pipe (612), and the outer wall of the side opening (613) and the inner wall of the exhaust pipe (610) are fitted together. The outer wall of the stopper (611) is fittedly connected to a spring (615), and the outer wall of the spring (615) and the outer wall of the exhaust pipe (612) are intertwined with each other. The top of the exhaust pipe (612) is fixedly connected to a flow blocking plug (614), and the bottom of the flow blocking plug (614) and the top of the exhaust pipe (610) are fitted together. The inside of the connecting pipe B (64) is fixedly sleeved to the flow blocking box B (49).

5. A high-strength and high-toughness austempered ductile iron smelting device according to claim 4, characterized in that: The interior of the processing box (20) comprises a processing chamber (201), a heat-conducting copper tube (202), a rotating shaft (203), a crushing blade (204), and a roll bar (205). The processing box (20) is provided with a processing chamber (201) inside. The top side of the processing chamber (201) is fixedly connected to the heat-conducting copper tube (202). The bottom of the heat-conducting copper tube (202) is provided with a rotating shaft (203). One end of the rotating shaft (203) extends to the outside of the processing chamber (201). The end of the rotating shaft (203) extending outside the processing chamber (201) is connected to a motor (53). The outer wall of one side of the rotating shaft (203) is fixedly sleeved with a gear A (54). The rotating shaft (203) is close to the motor (53). 3) The outer wall at one end is fixedly sleeved with a gear A (54), a crushing blade (204) is arranged on the side of the gear A (54), the crushing blade (204) is fixedly connected to the surface of the rotating shaft (203) located inside the processing chamber (201), the bottom of the crushing blade (204) is fixedly connected to the rotating shaft (203), the bottom of the crushing blade (204) is arranged with a roll bar (205), the outer wall of the roll bar (205) is fixedly connected to the inside of the processing chamber (201), the air collecting box (69) is located at the bottom of the processing chamber (201), the crushing blade (204) is located at the top of the processing chamber (201), and a bearing plate (515) is arranged between the crushing blade (204) and the air collecting box (69).

6. The high-strength and high-toughness austempered ductile iron smelting device according to claim 1 is characterized in that: The interior of the collecting member (70) comprises a collecting box (71), a handle (72), an observation tube (73), a connecting groove (74), and a sealing plug (75); a connecting groove (74) is provided on the top of the collecting box (71); the sealing plug (75) is clamped on the top of the connecting groove (74); the handle (72) is fixedly connected to the outer walls of both sides of the collecting box (71); the observation tube (73) is fixedly connected to the surface of the collecting box (71); and the interior of the connecting groove (74) and the bottom of the processing box (20) are mutually adapted.

7. The high-strength and high-toughness austempered ductile iron smelting device according to claim 1 is characterized in that: The interior of the filter collecting element (90) comprises an outer cylinder (91), a threaded block (92), a filter cloth (93), and a top opening (94); the outer cylinder (91) is provided on the circumferential outer wall of the outer cylinder (91); the top opening (94) is provided on the top of the outer cylinder (91); the filter cloth (93) is sleeved inside the outer cylinder (91); the bottom of the outer cylinder (91) is threadedly connected to the threaded block (92); and the inside of the top opening (94) is threadedly connected to the bottom of the guide tube (80).

8. A high-strength and high-toughness austempered ductile iron smelting process according to claims 1-7, characterized in that: The steps include: S1, exhaust step: first, the collecting box (71) and the bottom of the processing box (20) are embedded and installed, then the top plate (30) and the processing box (20) are separated from each other, and then iron is thrown into the processing box (20) through the top of the processing box (20). After the throwing is completed, the bottom of the top plate (30) is clamped on the top of the processing box (20), and then the one-way valve (63) is connected to the existing argon gas delivery pipeline to deliver argon gas to the gas storage box (62). At this time, the motor (53) can be started to work. When working, the motor (53) will drive the gear A (54) to rotate, and the gear B (55) meshing with the gear A (54) will also rotate, and the limit rod (56) and the outer wall of the gear B (55) sleeved The pulling rod (58) will reciprocate inside the cylinder A (59). During the movement, the gas inside the gas storage box (510) will be squeezed and enter the inside of the connecting pipe A (61) and the baffle box B (49) respectively. When the gas enters the connecting pipe A (61), it will push the squeezing plug (65) to move downward, squeezing the argon gas inside the connecting pipe B (64) and transporting it into the processing box (20). Because argon gas is heavier than air, argon gas will sink when entering the processing box (20), while air can only reach the top of the argon gas. As argon gas is continuously stored in the processing box (20), air can be gradually discharged from the inside of the processing box (20), thereby preventing the iron sheet from being oxidized after being broken, thereby protecting it. S2, crushing step: when the fragments enter the interior of the processing box (20), they will be carried by the carrying plate (515), and the motor (53) will drive the internally connected rotating shaft (203) to rotate during the rotation process. When the rotating shaft (203) rotates, the crushing blade (204) fixedly connected to the outer wall will also rotate, and the iron pieces on the surface of the carrying plate (515) can be crushed. In step S2, a gas will enter the interior of the side tube A (52). When the gas enters the interior of the side tube A (52), the carrying plate (515) will be slowly lifted up so that the carrying plate (515) can exert a certain pressure on the pushed iron, and the friction between the crushing blade (204) will be increased, thereby facilitating rapid crushing; S3, storage step: When the pulling rod (58) of step one is being pulled out and recovered, the gas inside the side tube A (52) will be drawn into the interior of the gas storage box (510). Similarly, the supporting plate (515) of step two will be slowly driven downward by the telescopic rod (518), causing the side of the supporting plate (515) to contact the roll bar (205) and cause it to roll. At this time, the broken materials on the surface of the supporting plate (515) will fall into the collection box (71) for storage, thereby avoiding oxidation. During the melting process, the collection box (71) can be directly thrown into the molten iron for melting. Because the interior of the collection box (71) is hollow, it melts faster.

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