Rare earth iron alloy smelting device and method for preparing cerium iron alloy

Abstract

The invention discloses a rare earth iron alloy smelting device and a method for preparing cerium iron alloy. The device comprises smelting equipment, a position adjusting assembly, a feeding assembly and a material taking assembly. According to the device, automatic feeding and discharging can be achieved, and the preparation efficiency and accuracy of the rare earth iron alloy are improved.

Description

Technical Field

[0001] The invention relates to a rare earth iron alloy smelting device and a method for preparing ferrocerium alloy. Background Art

[0002] Rare earths can improve the microstructure of steel, optimize the physical properties of steel, reduce the impurity content of steel, enhance the oxidation resistance of steel and extend its service life. Adding ferrocerium to steel is a method of introducing rare earth elements into steel.

[0003] CN103361543A discloses a method for preparing ferrocerium alloy, which adopts a vacuum induction melting furnace, uses metal cerium with a purity greater than 99.0% and pure iron with a purity greater than 99.0% as raw materials, and after the ingredients are prepared according to the cerium content of 0.1-15wt% and the balance of Fe, smelting is carried out in a vacuum induction furnace, the vacuum chamber pressure during smelting is not greater than 100Pa, the smelting temperature is controlled at 1550-1600°C, and after the alloy is completely melted, it is kept in a vacuum state for 4-6min, and then the vacuum is released, and cast into an ingot of qualified size under an argon protective atmosphere. The cerium content in the obtained ferrocerium alloy is 0.1-15wt%, and the balance is Fe and inevitable impurities with a total amount not greater than 1.0wt%. CN102383028A discloses a method for manufacturing a Fe-mixed rare earth master alloy for adding rare earth to steel, wherein pure iron weighed in weight percentage is placed in a vacuum medium frequency induction crucible for vacuum smelting; silicon, barium and calcium are fully deoxidized, and when the temperature reaches 1550°C to 1650°C, mixed rare earth metals are added to the pure iron water in the crucible, and after the mixed rare earth metals are melted, they are uniformly mixed for 1 to 10 minutes, and then the molten and uniformly mixed Fe-mixed rare earth master alloy steel is poured into a combined steel ingot mold, and the mixture is completely cooled, and the Fe-mixed rare earth master alloy is obtained after the mold is opened. None of the above prior arts involve equipment for preparing ferrocerium alloy. Summary of the invention

[0004] In view of this, one object of the present invention is to provide a rare earth iron alloy smelting device, which can automatically load and discharge materials, thereby improving the preparation efficiency of the rare earth iron alloy. Furthermore, the device can more accurately control the content of components in the obtained rare earth iron alloy. Another object of the present invention is to provide a method for preparing ferrocerium alloy, which can more accurately control the content of components in the obtained ferrocerium alloy.

[0005] The above object is achieved through the following scheme.

[0006] On the one hand, the present invention provides a rare earth iron alloy smelting device, including a smelting device, a position adjustment component, a feeding component and a material taking component;

[0007] The smelting equipment comprises a smelting container, wherein the smelting container is configured to contain smelting raw materials;

[0008] The position adjustment assembly comprises a position adjustment slide, the position adjustment slide is located above the smelting container, and the position adjustment slide can move in a horizontal direction;

[0009] The feeding assembly is fixed to the positioning slide, and the feeding assembly is configured to add smelting raw materials into the smelting container. The feeding assembly can move in a horizontal direction driven by the positioning slide;

[0010] The material taking assembly includes a clamping device and a longitudinal driving device; the clamping device includes a clamping fixed frame, a bidirectional material taking lead screw, a clamping rod and a lead screw driving device;

[0011] The clamping and fixing frame is arranged between the adjusting slide plate and the smelting container;

[0012] The bidirectional material taking screw is rotatably connected to the clamping and fixing frame, and the bidirectional material taking screw has two threaded sections;

[0013] The screw drive device is connected to the bidirectional material taking screw, and the screw drive device is configured to drive the bidirectional material taking screw to rotate;

[0014] The clamping rods are provided in two numbers, which are respectively sleeved on the two threaded sections of the bidirectional material taking screw and can move along the axial direction of the bidirectional material taking screw; the clamping rods are provided to clamp the smelting container;

[0015] The longitudinal driving device is configured to drive the clamping device to move in a vertical direction.

[0016] According to the rare earth iron alloy smelting device of the present invention, preferably, the material taking assembly further comprises a material pouring device, and the material pouring device comprises a material pouring bracket, a material pouring rotating rod, a material pouring connecting block and a material pouring rotating rod driving device;

[0017] The material pouring support is connected to the longitudinal driving device;

[0018] The material dumping rotating rod is rotatably connected to the material dumping bracket;

[0019] The material pouring connection block is passed through the material pouring rotating rod and is fixed to the material pouring rotating rod;

[0020] The material dumping rotating rod driving device is configured to drive the material dumping rotating rod to rotate.

[0021] According to the rare earth iron alloy smelting device of the present invention, preferably, the clamping fixing frame comprises a horizontal fixing plate, a first baffle, a second baffle and a connecting frame;

[0022] The horizontal fixing plate is provided with a slot, and the slot is configured to limit the clamping rod;

[0023] The first baffle plate and the second baffle plate are arranged opposite to each other and fixed on the upper surface of the horizontal fixing plate;

[0024] The bidirectional material taking screw is rotatably connected to the first baffle and the second baffle respectively;

[0025] The connecting frame is sleeved on the outer periphery of the non-threaded portion of the bidirectional material taking screw, and the connecting frame is connected to the material pouring connecting block;

[0026] The clamping rod comprises a clamping rod connecting end, a clamping rod middle portion and a clamping rod clamping end which are connected in sequence;

[0027] The connecting end of the clamping rod is provided with a nut matching the threaded section, and the connecting end of the clamping rod is sleeved on the threaded section of the bidirectional material taking screw;

[0028] A portion of the middle portion of the clamping rod is inserted into a slot provided on the horizontal fixing plate;

[0029] The clamping end of the clamping rod is used for clamping the smelting container.

[0030] According to the rare earth iron alloy smelting device of the present invention, preferably, a positioning ring is provided on the upper part of the smelting container, and a positioning barrel is provided on the positioning ring; the positioning barrel is a horizontally placed column, and the positioning barrel has a cavity with one end open, and the cavity is configured to accommodate the clamping end of the clamping rod;

[0031] The clamping end of the clamping rod matches the shape of the cavity of the positioning barrel.

[0032] According to the rare earth iron alloy smelting device of the present invention, preferably, the feeding assembly includes a feeding hopper, a feeding barrel, a feeding barrel rotating shaft, a feeding frame, a feeding rack and a feeding drive device;

[0033] The feeding hopper has an upper opening and a lower opening; the upper opening is used to allow the raw materials to enter the feeding hopper, and the lower opening is used to allow the raw materials to be discharged from the feeding hopper; a part of the feeding hopper is inserted into the positioning slide and fixed to the positioning slide;

[0034] The loading barrel is located below the lower end opening of the feeding hopper, the loading barrel is rotatably connected to the loading frame via a loading barrel rotating shaft, and the loading barrel is configured to transport raw materials to the smelting container;

[0035] The loading rack fixes the loading frame and the positioning slide plate;

[0036] The feeding drive device is connected to the feeding barrel rotating shaft, and the feeding drive device is configured to drive the feeding barrel rotating shaft to rotate.

[0037] According to the rare earth iron alloy smelting device of the present invention, preferably, a weighing plate and a weighing sensor are arranged in the loading cylinder; the weighing sensor is located below the weighing plate;

[0038] The feeding hopper is provided in plurality, the loading cylinder is provided in plurality, and the loading driving device is provided in plurality; each feeding hopper corresponds to a loading cylinder, and each loading cylinder corresponds to a loading driving device.

[0039] According to the rare earth iron alloy smelting device of the present invention, preferably, the rare earth iron alloy smelting device further comprises a support table, and the position adjustment component further comprises a position adjustment frame and a position adjustment drive device;

[0040] The position adjustment frame is fixed to the support platform, and the position adjustment frame is provided with a sliding groove;

[0041] At least a portion of the positioning slide is embedded in the sliding groove;

[0042] The positioning drive device is configured to drive the positioning slide plate to move along the sliding groove.

[0043] According to the rare earth iron alloy smelting device of the present invention, preferably, the smelting equipment further comprises a smelting furnace body, a container cover, a smoke exhaust pipe and a temperature detection sensor;

[0044] The smelting furnace body is fixed on the support platform, and the smelting furnace body has a furnace cavity; a part of the smelting container is located in the furnace cavity, and the upper end of the smelting container is located outside the furnace cavity, and the positioning ring is sleeved on the outer periphery of the part of the smelting container located outside the furnace cavity;

[0045] The smelting container has an upper opening, and the container cover is used to cover the upper opening of the smelting container; the container cover is fixed to the lower surface of the horizontal fixing plate;

[0046] The smoke exhaust pipe is arranged on the container cover, and the smoke exhaust pipe is arranged to discharge the smoke generated during the smelting process out of the smelting container;

[0047] The temperature detection sensor is arranged on the container cover, and the temperature monitoring sensor is arranged to convert the temperature signal into an electrical signal.

[0048] On the other hand, the present invention provides a method for preparing ferrocerium alloy using the above rare earth iron alloy smelting device, comprising the following steps:

[0049] (1) adding raw iron and raw cerium into the feeding hopper from the upper openings of different feeding hoppers; discharging the raw iron and raw cerium from the lower openings of different feeding hoppers and entering the upper barrel; judging whether to stop adding the raw iron and raw cerium according to the weighing plate and weighing sensor in the upper barrel;

[0050] After the addition of raw material iron and raw material cerium is stopped, the positioning drive device is started to drive the positioning slide to move in the horizontal direction, so that the loading barrel is located above the upper end opening of the smelting container; the loading drive device is driven to rotate the rotating shaft of the loading barrel, thereby driving the loading barrel to turn over; the raw materials in the loading barrel fall into the smelting container;

[0051] (2) driving the positioning drive device to adjust the horizontal position of the container cover; starting the longitudinal drive device to adjust the longitudinal position of the container cover so that the container cover covers the upper end opening of the smelting container; smelting the raw iron and raw cerium to obtain alloy liquid;

[0052] (3) starting the longitudinal drive device to move the container cover upward and away from the smelting container, and adjusting the clamping rod longitudinally to a position matching the positioning barrel;

[0053] The positioning drive device is driven to adjust the clamping rod in the horizontal direction to a position matching the positioning barrel;

[0054] The lead screw drive device is driven to move the two clamping rods toward the smelting container until the clamping ends of the clamping rods extend into the positioning barrel;

[0055] driving the longitudinal driving device to move the clamping device upward, thereby separating the smelting container from the smelting furnace body;

[0056] Driving the position adjustment driving device to adjust the position of the position adjustment slide plate so that the smelting furnace body does not hinder the alloy liquid in the smelting container from pouring out;

[0057] The pouring rod driving device is driven to rotate the pouring connection block, thereby driving the clamping fixed frame to rotate, and then pouring the alloy liquid in the smelting container, casting it into the mold, and obtaining the ferrocerium alloy after cooling.

[0058] According to the method of the present invention, preferably, the amount of raw material iron is 1 to 9.9 parts by weight, and the amount of raw material cerium can be 0.1 to 9 parts by weight;

[0059] In step (2), the smelting is carried out at 1530-1630° C., and the temperature is kept for 5-10 minutes after the raw material iron and raw material cerium are completely melted;

[0060] The mold is a cast iron ingot mold, and the cooling method is natural cooling.

[0061] The rare earth iron alloy smelting device of the present invention can automatically load and discharge materials, thereby improving the preparation efficiency of the rare earth iron alloy. Furthermore, the device can more accurately control the component content in the obtained ferrocerium alloy. The preparation method of the present invention can more accurately control the component content in the obtained ferrocerium alloy. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] Figure 1 The present invention is a schematic structural diagram of a rare earth iron alloy smelting device.

[0063] Figure 2 for Figure 1 Schematic diagram of the local enlarged structure at point A in the middle.

[0064] Figure 3 A cross-sectional view of the local structure of the loading component.

[0065] Figure 4 It is a structural schematic diagram of the material taking component.

[0066] The reference numerals are as follows:

[0067] 1-melting furnace body; 2-melting container; 3-support table; 4-positioning frame; 5-positioning slide plate; 6-positioning drive device; 7-loading rack; 8-loading frame; 9-loading barrel shaft; 10-loading barrel; 11-loading drive device; 12-weighing sensor; 13-weighing plate; 14-longitudinal drive device; 15-material unloading bracket; 16-material unloading rotating rod; 17-material unloading rotating rod drive device; 181-horizontal fixed plate; 182-first baffle; 183-second baffle; 184-connecting frame; 19-bidirectional material taking screw; 21-screw drive device; 22-clamping rod; 23-positioning ring; 24-positioning barrel; 25-container cover; 26-exhaust pipe; 27-temperature detection sensor; 28-feeding hopper; 29-material unloading connecting block. DETAILED DESCRIPTION

[0068] The present invention is further described below in conjunction with specific embodiments, but the protection scope of the present invention is not limited thereto.

[0069] <Rare earth iron alloy smelting device>

[0070] The rare earth iron alloy smelting device of the present invention comprises a smelting device, a position adjustment component, a material loading component and a material taking component. In certain embodiments, it also comprises a support platform.

[0071] Bracket

[0072] The support platform of the present invention plays a supporting and fixing role. In some embodiments, the support platform includes a horizontal portion and a vertical portion connected to each other. One end of the horizontal portion is connected to one end of the vertical portion. The horizontal portion and the vertical portion are substantially perpendicular. The horizontal portion and the vertical portion can be substantially "L" shaped.

[0073] Melting equipment

[0074] The smelting equipment of the present invention comprises a smelting container and, in certain embodiments, further comprises one or more of a smelting furnace body, a container cover, a smoke exhaust pipe and a temperature detection sensor.

[0075] The smelting container is configured to accommodate smelting raw materials. The smelting container also provides a place for smelting. The upper end of the smelting container is open. A positioning ring is sleeved on the upper part of the smelting container. Preferably, a positioning ring is sleeved on the upper end of the smelting container. A positioning barrel may be provided on the positioning ring. Two positioning barrels are provided. The two positioning barrels are symmetrically arranged. In some embodiments, the connecting line of the two positioning barrels intersects with the central axis of the smelting container. The positioning barrel is a horizontally arranged cylinder. The positioning barrel has a cavity with an open end. The cavity of the positioning barrel is configured to accommodate the clamping end of the clamping rod. In some embodiments, the cavity of the positioning barrel has a hexagonal cross section perpendicular to the horizontal direction. The smelting container may be a crucible.

[0076] The smelting furnace body has a furnace cavity. A part of the smelting container is located in the furnace cavity, and the upper end of the smelting container is located outside the furnace cavity. The positioning ring sleeve is arranged on the outer periphery of the part of the smelting container located outside the furnace cavity. The smelting furnace body can be fixed on a support platform.

[0077] The container cover is used to cover the upper opening of the smelting container and is fixed to the lower surface of the horizontal fixing plate.

[0078] The smoke exhaust pipe is arranged on the container cover and is arranged to discharge the smoke generated during the smelting process out of the smelting container.

[0079] The temperature detection sensor is arranged on the container cover and is arranged to convert the temperature signal into an electrical signal.

[0080] Position adjustment components

[0081] The position adjustment assembly of the present invention comprises a position adjustment slide plate and, in certain embodiments, further comprises a position adjustment frame and a position adjustment drive device.

[0082] The positioning slide is located above the smelting container and can move in the horizontal direction.

[0083] The position adjustment frame is fixed to the support platform. The position adjustment frame is provided with a sliding groove. A part of the position adjustment slide plate is embedded in the sliding groove. The sliding groove limits the movement direction of the position adjustment slide plate.

[0084] The positioning drive device is connected to the positioning slide plate. The positioning drive device drives the positioning slide plate to move. The positioning drive device can be fixed to the support platform. The positioning drive device can be an electric cylinder.

[0085] Loading components

[0086] The feeding assembly of the present invention is fixed to the position adjusting slide plate, is configured to add smelting raw materials into the smelting container, and can move in the horizontal direction driven by the position adjusting slide plate.

[0087] In certain embodiments, the feeding assembly includes a feeding hopper, a feeding barrel, a feeding barrel rotating shaft, a feeding frame, a feeding rack and a feeding driving device.

[0088] The feeding hopper is configured to feed raw materials to the upper barrel. The feeding hopper has an upper opening and a lower opening. The upper opening of the feeding hopper is used to allow the raw materials to enter the feeding hopper. The lower opening of the feeding hopper is used to allow the raw materials to be discharged from the feeding hopper. A portion of the feeding hopper is inserted into the positioning slide and fixed to the positioning slide. The feeding hopper can be provided in plurality. Multiple feeding hoppers are provided along the movement direction of the positioning slide. In certain embodiments, two feeding hoppers are provided. One of the feeding hoppers is used to feed raw material iron to the upper barrel, and the other feeding hopper is used to feed raw material cerium to the upper barrel.

[0089] The upper barrel is located below the lower opening of the feeding hopper. The upper barrel is used to feed raw materials to the smelting container. A weighing pan may be provided in the upper barrel. The weighing pan is used to detect the weight of the raw materials in the upper barrel. In some embodiments, a weighing sensor is also provided in the upper barrel. The weighing sensor may be provided below the weighing pan. The weighing sensor is used to convert a weight signal into an electrical signal.

[0090] The feeding barrel is rotatably connected with the feeding frame through a feeding barrel rotating shaft. The feeding frame and the adjusting slide are fixed by the feeding rack.

[0091] The feeding cylinder can be arranged in a plurality. Each feeding hopper corresponds to a feeding cylinder. In some embodiments, two feeding cylinders are arranged.

[0092] The feeding drive device is connected to the feeding barrel shaft. The feeding drive device drives the feeding barrel shaft to rotate. The feeding drive device can be set to multiple. Each feeding barrel corresponds to a feeding drive device. The feeding drive device can be a motor.

[0093] Reclaiming components

[0094] The material taking assembly of the present invention comprises a clamping device and a longitudinal driving device. In certain embodiments, it also comprises a material pouring device.

[0095] The clamping device of the present invention comprises a clamping fixing frame, a bidirectional material taking lead screw, a clamping rod and a lead screw driving device.

[0096] The clamping and fixing frame is arranged between the adjusting slide plate and the smelting container. In certain embodiments, the clamping and fixing frame comprises a horizontal fixing plate, a first baffle plate, a second baffle plate and a connecting frame.

[0097] The horizontal fixing plate is provided with a slot, which is used to limit the clamping rod, and the position of the slot matches the threaded section of the bidirectional material taking screw.

[0098] The first baffle plate and the second baffle plate are respectively arranged at two ends of the horizontal fixed plate, are fixed to the upper surface of the horizontal fixed plate, and are arranged opposite to each other.

[0099] The connecting frame is fixed on the upper surface of the horizontal fixing plate.

[0100] The bidirectional material taking screw is rotatably connected with the clamping fixing frame. Specifically, one end of the bidirectional material taking screw is rotatably connected with the first baffle plate, and the other end of the bidirectional material taking screw is rotatably connected with the second baffle plate.

[0101] The bidirectional material taking screw has a threaded section and a non-threaded section. The threaded section includes a first threaded section and a second threaded section. The first threaded section and the second threaded section are respectively arranged at two ends of the bidirectional material taking screw. The non-threaded section is arranged between the first threaded section and the second threaded section. At least a part of the non-threaded section is inserted into the connecting frame.

[0102] The screw drive device is connected to the bidirectional material taking screw. The screw drive device is used to drive the bidirectional material taking screw to rotate. The screw drive device can be fixed on the first baffle plate or the second baffle plate. The screw drive device can be a motor.

[0103] The clamping rods are provided in two numbers, which are respectively sleeved on the two threaded sections of the bidirectional material taking screw and can move along the axial direction of the bidirectional material taking screw. The clamping rods are provided to clamp the smelting container. The two clamping rods can approach and move away from the smelting container at the same time. The above effect can be achieved by adjusting the thread directions of the two threaded sections.

[0104] In some embodiments, the clamping rod includes a clamping rod connecting end, a clamping rod middle portion, and a clamping rod clamping end which are connected in sequence.

[0105] The connecting end of the clamping rod is provided with a nut matching the threaded section, such as a ball nut set. The connecting end of the clamping rod is sleeved on the threaded section of the bidirectional material taking screw.

[0106] A portion of the middle portion of the clamping rod is inserted into a slot formed on the horizontal fixing plate.

[0107] The clamping end of the clamping rod can be a horizontally arranged columnar structure. The clamping end of the clamping rod cooperates with the positioning barrel. In some embodiments, the cross section of the clamping end of the clamping rod perpendicular to the horizontal plane is a hexagon.

[0108] The longitudinal drive device of the present invention is configured to drive the clamping device to move in the vertical direction. The longitudinal drive device can be directly connected to the clamping device or connected to the clamping device through a material pouring device. The longitudinal drive device can be an electric cylinder.

[0109] The material pouring device of the present invention comprises a material pouring bracket, a material pouring rotating rod, a material pouring connecting block and a material pouring rotating rod driving device.

[0110] The material unloading bracket is connected with the longitudinal driving device.

[0111] The material pouring rotating rod is rotatably connected with the material pouring bracket. The material pouring rotating rod can be arranged in the material pouring bracket.

[0112] The material pouring connection block is arranged on the material pouring rotating rod. The material pouring connection block is fixed to the material pouring rotating rod. The material pouring connection block is connected to the clamping device. Specifically, the material pouring connection block is connected to the connecting frame.

[0113] The material dumping rotating rod driving device is connected to the material dumping rotating rod. The material dumping rotating rod driving device is used to drive the material dumping rotating rod to rotate. The material dumping rotating rod driving device can be a motor.

[0114] <Method for preparing ferrocerium alloy>

[0115] The method for preparing ferrocerium alloy of the present invention comprises the following steps:

[0116] (1) adding raw iron and raw cerium into the feeding hopper from the upper openings of different feeding hoppers; discharging the raw iron and raw cerium from the lower openings of different feeding hoppers and entering the upper barrel; judging whether to stop adding the raw iron and raw cerium according to the weighing plate and weighing sensor in the upper barrel;

[0117] After the addition of raw material iron and raw material cerium is stopped, the positioning drive device is started to drive the positioning slide to move in the horizontal direction, so that the loading barrel is located directly above the upper end opening of the smelting container; the loading drive device is driven to rotate the rotating shaft of the loading barrel, thereby driving the loading barrel to flip; the raw materials in the loading barrel fall into the smelting container;

[0118] (2) driving the positioning drive device to adjust the horizontal position of the container cover; starting the longitudinal drive device to adjust the longitudinal position of the container cover so that the container cover covers the upper end opening of the smelting container; smelting the raw iron and raw cerium to obtain alloy liquid;

[0119] (3) starting the longitudinal drive device to move the container cover upward and away from the smelting container, and adjusting the clamping rod longitudinally to a position matching the positioning barrel;

[0120] The positioning drive device is driven to adjust the clamping rod in the horizontal direction to a position matching the positioning barrel;

[0121] The lead screw drive device is driven to move the two clamping rods toward the smelting container until the clamping ends of the clamping rods extend into the positioning barrel;

[0122] driving the longitudinal driving device to move the clamping device upward, thereby separating the smelting container from the smelting furnace body;

[0123] The positioning drive device is driven to move the positioning slide forward so that the smelting furnace body does not hinder the alloy liquid in the smelting container from being poured out;

[0124] The pouring rod driving device is driven to rotate the pouring connection block, thereby driving the clamping fixed frame to rotate, and then pouring the alloy liquid in the smelting container, casting it into the mold, and obtaining the ferrocerium alloy after cooling.

[0125] The amount of raw material iron used can be 1 to 9.9 parts by weight, preferably 7 to 9.9 parts by weight.

[0126] The amount of raw material cerium used can be 0.1 to 9 parts by weight, preferably 0.1 to 3 parts by weight.

[0127] The total amount of the raw material iron and the raw material cerium used may be 10 parts by weight.

[0128] In step (2), the smelting is carried out at 1530-1630° C. The temperature may be kept for 5-10 minutes after the raw materials iron and cerium are completely melted.

[0129] The mold used may be a cast iron ingot mold. The cooling method may be natural cooling.

[0130] Example 1

[0131] like Figure 1 As shown, the rare earth iron alloy smelting device of this embodiment includes a support platform 3, a smelting device, a position adjustment component, a loading component and a taking component.

[0132] The support platform 3 plays a supporting and fixing role. In this embodiment, the support platform 3 includes a horizontal part and a vertical part connected to each other. The support platform 3 is basically "L" shaped.

[0133] like Figure 1 , Figure 2 and Figure 4 As shown, the smelting equipment includes a smelting furnace body 1, a smelting container 2, a container cover 25, a smoke exhaust pipe 26 and a temperature detection sensor 27.

[0134] The smelting furnace body 1 is located on the horizontal part of the support platform 3 and is fixed to the support platform 3. The smelting furnace body 1 has a furnace cavity.

[0135] The upper end of the smelting container 2 is open. The smelting container 2 is used to accommodate smelting raw materials. A portion of the smelting container 2 is located in the furnace chamber. The upper end of the smelting container 2 is located outside the furnace chamber. A positioning ring 23 is sleeved on the outer periphery of the portion of the smelting container 2 located outside the furnace chamber. Two positioning barrels 24 are arranged on the positioning ring 23. The two positioning barrels 24 are symmetrically arranged. In some embodiments, the connecting line of the two positioning barrels 24 intersects with the central axis of the smelting container 2. The positioning barrel 24 is a barrel-like column with a horizontal arrangement of the cavity. In this embodiment, the cross section of the cavity of the positioning barrel 24 perpendicular to the horizontal direction is a hexagon. The smelting container 2 can be a crucible.

[0136] The container cover 25 is used to cover the upper opening of the smelting container 2 .

[0137] The smoke exhaust pipe 26 is disposed on the container cover 25. The smoke exhaust pipe 26 exhausts the smoke generated during the smelting process out of the smelting container 2.

[0138] The temperature detection sensor 27 is disposed on the container cover 25. The temperature detection sensor 27 is used to convert a temperature signal into an electrical signal.

[0139] like Figure 1 As shown, the position adjustment assembly includes a position adjustment frame 4, a position adjustment slide 5 and a position adjustment drive device 6.

[0140] The position adjustment frame 4 is located above the smelting container 2. The position adjustment frame 4 is fixed to the vertical portion of the support platform 3. The position adjustment frame 4 is provided with a sliding groove.

[0141] A part of the position adjusting slide plate 5 is embedded in the sliding groove. The sliding groove limits the movement direction of the position adjusting slide plate 5. The position adjusting slide plate 5 can move in the horizontal direction.

[0142] The position adjustment drive device 6 is fixed on the vertical part of the support platform 3. The position adjustment drive device 6 is connected to the position adjustment slide 5. The position adjustment drive device 6 drives the position adjustment slide 5 to move. The position adjustment drive device 6 can be an electric cylinder.

[0143] like Figure 1 and 3 As shown, the feeding assembly includes a feeding hopper 28, a feeding cylinder 10, a feeding cylinder rotating shaft 9, a feeding frame 8, a feeding rack 7 and a feeding driving device 11.

[0144] A portion of the feeding hopper 28 is inserted into the positioning slide 5 and fixed to the positioning slide 5. The feeding hopper 28 has an upper opening and a lower opening. The upper opening of the feeding hopper 28 is used to allow the raw material to enter the feeding hopper 28. The lower opening of the feeding hopper 28 is used to allow the raw material to be discharged from the feeding hopper 28. In this embodiment, two feeding hoppers 28 are provided, and the two feeding hoppers 28 are provided along the movement direction of the positioning slide 5. One of the feeding hoppers 28 is used to convey the raw material iron to the upper barrel 10, and the other feeding hopper 28 is used to convey the raw material cerium to the upper barrel 10.

[0145] The upper barrel 10 is located below the lower end opening of the feeding hopper 28. The upper barrel 10 is used to feed raw materials to the smelting container 2. In this embodiment, two upper barrels 10 are provided. Each upper barrel 10 corresponds to a feeding hopper 28. A weighing pan 13 is provided in the upper barrel 10. The weighing sensor 12 is provided in the upper barrel 10 and is located below the weighing pan 13.

[0146] The loading barrel 10 is rotatably connected with the loading frame 8 via the loading barrel rotating shaft 9. The loading frame 8 and the adjusting slide plate 5 are fixed by the loading frame 7.

[0147] The feeding drive device 11 is connected to the feeding barrel shaft 9. The feeding drive device 11 drives the feeding barrel shaft 9 to rotate. The feeding drive device 11 can be a motor. Each feeding barrel 10 corresponds to a feeding drive device 11.

[0148] The raw material enters the feeding hopper 28 through the upper opening of the feeding hopper 28, and then is discharged from the lower opening of the feeding hopper 28. The raw material discharged from the lower opening of the feeding hopper 28 falls into the upper barrel 10. The weighing plate 13 in the upper barrel 10 weighs the raw material falling into the upper barrel 10. The weighing sensor 12 converts the mass signal transmitted by the weighing plate 13 into an electrical signal, and determines whether to stop feeding according to the electrical signal transmitted by the weighing sensor 12. After stopping feeding, the positioning drive device 6 is started to drive the positioning slide 5 to move in the horizontal direction, so that the upper barrel 10 is located directly above the upper opening of the smelting container 2. The feeding drive device 11 is driven to rotate the upper barrel shaft 9, thereby driving the upper barrel 10 to flip. The raw material in the upper barrel 10 falls into the smelting container 2.

[0149] like Figure 1 , 2 As shown in Figure 4, the material taking assembly includes a clamping device, a longitudinal driving device 14 and a material pouring device. The material taking assembly is located in front of the material loading assembly.

[0150] The longitudinal drive device 14 is connected to the material pouring device. The longitudinal drive device 14 drives the clamping device to move in the vertical direction through the material pouring device. The longitudinal drive device 14 can be an electric cylinder.

[0151] The material pouring device comprises a material pouring support 15 , a material pouring rotating rod 16 , a material pouring connecting block 29 and a material pouring rotating rod driving device 17 .

[0152] The material pouring support 15 is connected to the longitudinal driving device 14 .

[0153] The material pouring rotating rod 16 is disposed in the material pouring bracket 15 and is rotatably connected to the material pouring bracket 15 .

[0154] The material pouring connection block 29 is passed through the material pouring rotating rod 16 and fixed to the material pouring rotating rod 16. The material pouring connection block 29 is used to be fixed to the clamping device.

[0155] The material dumping rotating rod driving device 17 is connected to the material dumping rotating rod 16. The material dumping rotating rod driving device 17 is used to drive the material dumping rotating rod 16 to rotate. The material dumping rotating rod driving device 17 can be a motor.

[0156] The clamping device comprises a clamping fixed frame, a bidirectional material taking screw 19 , a clamping rod 22 and a screw driving device 21 .

[0157] The clamping and fixing frame is arranged between the pouring device and the smelting container 2. The clamping and fixing frame comprises a horizontal fixing plate 181, a first baffle plate 182, a second baffle plate 183 and a connecting frame 184.

[0158] The horizontal fixing plate 181 is provided with a slot, which is used to limit the clamping rod 22.

[0159] The container cover 25 is fixed to the lower surface of the horizontal fixing plate 181. The smoke exhaust pipe 26 and the temperature detection sensor 27 pass through the horizontal fixing plate 181.

[0160] The first baffle plate 182 and the second baffle plate 183 are respectively disposed at both ends of the horizontal fixing plate 181. The first baffle plate 182 and the second baffle plate 183 are fixed on the upper surface of the horizontal fixing plate 181. The first baffle plate 182 and the second baffle plate 183 are disposed opposite to each other.

[0161] The connecting frame 184 is fixed on the upper surface of the horizontal fixing plate 181 .

[0162] One end of the bidirectional material taking screw 19 is rotatably connected to the first baffle 182, and the other end of the bidirectional material taking screw 19 is rotatably connected to the second baffle 183. The bidirectional material taking screw 19 has a threaded section and a non-threaded section. The threaded section includes a first threaded section and a second threaded section. The first threaded section and the second threaded section are respectively arranged at the two ends of the bidirectional material taking screw 19. The non-threaded section is arranged between the first threaded section and the second threaded section. A part of the non-threaded section is inserted into the connecting frame 184.

[0163] The lead screw driver 21 is connected to the bidirectional material taking lead screw 19. The lead screw driver 21 is used to drive the bidirectional material taking lead screw 19 to rotate. The lead screw driver 21 can be fixed on the first baffle 182 or the second baffle 183. The lead screw driver 21 can be a motor.

[0164] The clamping rod 22 includes a clamping rod connecting end, a clamping rod middle part and a clamping rod clamping end which are connected in sequence. The clamping rod connecting end is provided with a ball nut group. The clamping rod connecting end is sleeved on the threaded section of the bidirectional material taking screw 19. A part of the clamping rod middle part is inserted into the slot provided on the horizontal fixing plate 181. The clamping end of the clamping rod is a horizontally arranged columnar structure. The cross section of the clamping end of the clamping rod perpendicular to the horizontal plane is hexagonal. The clamping end of the clamping rod cooperates with the positioning barrel 24. The clamping rod 22 is provided in two, which are respectively provided on the first threaded section and the second threaded section. The two clamping rods 22 can approach and move away from the smelting container 2 at the same time. The above effect can be achieved by adjusting the thread direction of the two threaded sections.

[0165] The positioning drive device 6 is driven to adjust the position of the clamping rod 22. The screw drive device 21 is driven to rotate the bidirectional material taking screw 19. Due to the limiting effect of the slots provided on the horizontal fixing plate 181, the two clamping rods 22 do not rotate with the material taking screw 19, but move in the direction of the smelting container 2; thereby, the clamping ends of the clamping rods are extended into the cavity of the positioning barrel 24. The longitudinal driving device 14 is driven to move the clamping device upward, thereby separating the smelting container 2 from the smelting furnace body 1. The positioning drive device 6 is driven to move the positioning slide 5 forward. The material pouring rotating rod drive device 17 is driven to rotate the material pouring connecting block 29, thereby driving the clamping fixing frame to rotate, and then pouring the alloy liquid obtained in the smelting container 2 into the ingot mold.

[0166] Embodiments 2 to 11

[0167] The method for preparing ferrocerium alloy by using the rare earth iron alloy smelting device of Example 1 comprises the following steps:

[0168] (1) Raw iron and raw cerium are added to the feed hopper 28 from the upper openings of different feed hoppers 28. Raw iron and raw cerium are discharged from the lower openings of different feed hoppers 28 and enter the upper barrel 10. Whether to stop adding raw iron and raw cerium is determined according to the weighing plate 13 and the weighing sensor 12 in the upper barrel 10. The ratio of raw iron and raw cerium is shown in Table 1.

[0169] After the addition of raw material iron and raw material cerium is stopped, the positioning drive device 6 is started to drive the positioning slide plate 5 to move in the horizontal direction, so that the loading barrel 10 is located directly above the upper end opening of the smelting container 2. The loading drive device 11 is driven to rotate the loading barrel shaft 9, thereby driving the loading barrel 10 to flip. The raw materials in the loading barrel 10 fall into the smelting container 2.

[0170] (2) The positioning drive device 6 is driven to adjust the horizontal position of the container cover 25; the longitudinal drive device 14 is started to adjust the longitudinal position of the container cover 25; so that the container cover 25 covers the upper opening of the smelting container 2. The temperature of the smelting container 2 is controlled to be 1580°C ± 50°C. After the raw material iron and raw material cerium are completely melted, the temperature is kept for 7 minutes to obtain a molten alloy.

[0171] (3) Start the longitudinal drive device 14 to move the container cover 25 upward and detach from the smelting container 2, and adjust the clamping rod 22 to a position matching the positioning barrel 24 in the longitudinal direction. Drive the position adjustment drive device 6 to adjust the clamping rod 22 to a position matching the positioning barrel 24 in the horizontal direction. Drive the screw drive device 21 to move the two clamping rods 22 toward the smelting container 2 until the clamping ends of the clamping rods extend into the positioning barrel 24. Drive the longitudinal drive device 14 to move the clamping device upward, so that the smelting container 2 is detached from the smelting furnace body 1. Drive the position adjustment drive device 6 to move the position adjustment slide forward so that the smelting furnace body 1 does not hinder the pouring of the alloy liquid in the smelting container 2. Drive the pouring rod drive device 17 to rotate the pouring connection block 29, thereby driving the clamping fixed frame to rotate, and then pouring the alloy liquid in the smelting container 2, casting it into the cast iron ingot mold, and obtaining the ferrocerium alloy after natural cooling. The element composition of the ferrocerium alloy is shown in Table 2.

[0172] Table 1

[0173] Mass ratio of raw material cerium to raw material iron Example 2 1:9 Example 3 2:8 Example 4 3:7 Example 5 3.5:6.5 Example 6 4:6 Example 7 5:5 Example 8 6:4 Example 9 7:3 Example 10 8:2 Embodiment 11 9:1

[0174] Table 2

[0175]

[0176] The present invention is not limited to the above-mentioned embodiments. Without departing from the essential content of the present invention, any deformation, improvement and substitution that can be conceived by those skilled in the art shall fall within the scope of the present invention.

Claims

1. A rare earth iron alloy smelting device, characterized in that: The rare earth iron alloy smelting device comprises smelting equipment, a position adjustment component, a feeding component and a material taking component; The smelting equipment comprises a smelting container, wherein the smelting container is configured to contain smelting raw materials; The position adjustment assembly comprises a position adjustment slide, the position adjustment slide is located above the smelting container, and the position adjustment slide can move in a horizontal direction; The feeding assembly is fixed to the positioning slide, and the feeding assembly is configured to add smelting raw materials into the smelting container. The feeding assembly can move in a horizontal direction driven by the positioning slide; The material taking assembly includes a clamping device and a longitudinal driving device; the clamping device includes a clamping fixed frame, a bidirectional material taking lead screw, a clamping rod and a lead screw driving device; The clamping and fixing frame is arranged between the adjusting slide plate and the smelting container; The bidirectional material taking screw is rotatably connected to the clamping and fixing frame, and the bidirectional material taking screw has two threaded sections; The screw drive device is connected to the bidirectional material taking screw, and the screw drive device is configured to drive the bidirectional material taking screw to rotate; The clamping rods are provided in two numbers, which are respectively sleeved on the two threaded sections of the bidirectional material taking screw and can move along the axial direction of the bidirectional material taking screw; the clamping rods are provided to clamp the smelting container; The longitudinal driving device is configured to drive the clamping device to move in a vertical direction.

2. The rare earth iron alloy smelting device according to claim 1, characterized in that: The material taking assembly also includes a material pouring device, which includes a material pouring bracket, a material pouring rotating rod, a material pouring connecting block and a material pouring rotating rod driving device; The material pouring support is connected to the longitudinal driving device; The material dumping rotating rod is rotatably connected to the material dumping bracket; The material pouring connection block is passed through the material pouring rotating rod and is fixed to the material pouring rotating rod; The material dumping rotating rod driving device is configured to drive the material dumping rotating rod to rotate.

3. The rare earth iron alloy smelting device according to claim 2, characterized in that: The clamping and fixing frame comprises a horizontal fixing plate, a first baffle plate, a second baffle plate and a connecting frame; The horizontal fixing plate is provided with a slot, and the slot is configured to limit the clamping rod; The first baffle plate and the second baffle plate are arranged opposite to each other and fixed on the upper surface of the horizontal fixing plate; The bidirectional material taking screw is rotatably connected to the first baffle and the second baffle respectively; The connecting frame is sleeved on the outer periphery of the non-threaded portion of the bidirectional material taking screw, and the connecting frame is connected to the material pouring connecting block; The clamping rod comprises a clamping rod connecting end, a clamping rod middle portion and a clamping rod clamping end which are connected in sequence; The connecting end of the clamping rod is provided with a nut matching the threaded section, and the connecting end of the clamping rod is sleeved on the threaded section of the bidirectional material taking screw; A portion of the middle portion of the clamping rod is inserted into a slot provided on the horizontal fixing plate; The clamping end of the clamping rod is used for clamping the smelting container.

4. The rare earth iron alloy smelting device according to claim 3, characterized in that: A positioning ring is provided on the upper part of the smelting container, and a positioning barrel is provided on the positioning ring; the positioning barrel is a horizontally placed column, and the positioning barrel has a cavity with one end open, and the cavity is configured to accommodate the clamping end of the clamping rod; The clamping end of the clamping rod matches the shape of the cavity of the positioning barrel.

5. The rare earth iron alloy smelting device according to claim 4, characterized in that: The feeding assembly includes a feeding hopper, a feeding cylinder, a feeding cylinder rotating shaft, a feeding frame, a feeding rack and a feeding driving device; The feeding hopper has an upper opening and a lower opening; the upper opening is used to allow the raw materials to enter the feeding hopper, and the lower opening is used to allow the raw materials to be discharged from the feeding hopper; a part of the feeding hopper is inserted into the positioning slide and fixed to the positioning slide; The loading barrel is located below the lower end opening of the feeding hopper, the loading barrel is rotatably connected to the loading frame via a loading barrel rotating shaft, and the loading barrel is configured to transport raw materials to the smelting container; The loading rack fixes the loading frame and the positioning slide plate; The feeding drive device is connected to the feeding barrel rotating shaft, and the feeding drive device is configured to drive the feeding barrel rotating shaft to rotate.

6. The rare earth iron alloy smelting device according to claim 5, characterized in that: A weighing plate and a weighing sensor are arranged in the feeding cylinder; the weighing sensor is located below the weighing plate; The feeding hopper is provided in plurality, the loading cylinder is provided in plurality, and the loading driving device is provided in plurality; each feeding hopper corresponds to a loading cylinder, and each loading cylinder corresponds to a loading driving device.

7. The rare earth iron alloy smelting device according to claim 6, characterized in that: The rare earth iron alloy smelting device also includes a support table, and the position adjustment component also includes a position adjustment frame and a position adjustment drive device; The position adjustment frame is fixed to the support platform, and the position adjustment frame is provided with a sliding groove; At least a portion of the positioning slide is embedded in the sliding groove; The positioning drive device is configured to drive the positioning slide plate to move along the sliding groove.

8. The rare earth iron alloy smelting device according to claim 7, characterized in that: The smelting equipment also includes a smelting furnace body, a container cover, a smoke exhaust pipe and a temperature detection sensor; The smelting furnace body is fixed on the support platform, and the smelting furnace body has a furnace cavity; a part of the smelting container is located in the furnace cavity, and the upper end of the smelting container is located outside the furnace cavity, and the positioning ring is sleeved on the outer periphery of the part of the smelting container located outside the furnace cavity; The smelting container has an upper opening, and the container cover is used to cover the upper opening of the smelting container; the container cover is fixed to the lower surface of the horizontal fixing plate; The smoke exhaust pipe is arranged on the container cover, and the smoke exhaust pipe is arranged to discharge the smoke generated during the smelting process out of the smelting container; The temperature detection sensor is arranged on the container cover, and the temperature monitoring sensor is arranged to convert the temperature signal into an electrical signal.

9. A method for preparing ferrocerium alloy using the rare earth iron alloy smelting device according to claim 8, characterized in that: The steps include: (1) adding raw iron and raw cerium into the feeding hopper from the upper openings of different feeding hoppers; discharging the raw iron and raw cerium from the lower openings of different feeding hoppers and entering the upper barrel; judging whether to stop adding the raw iron and raw cerium according to the weighing plate and weighing sensor in the upper barrel; After the addition of raw material iron and raw material cerium is stopped, the positioning drive device is started to drive the positioning slide to move in the horizontal direction, so that the loading barrel is located above the upper end opening of the smelting container; the loading drive device is driven to rotate the rotating shaft of the loading barrel, thereby driving the loading barrel to turn over; the raw materials in the loading barrel fall into the smelting container; (2) driving the positioning drive device to adjust the horizontal position of the container cover; starting the longitudinal drive device to adjust the longitudinal position of the container cover so that the container cover covers the upper end opening of the smelting container; smelting the raw iron and raw cerium to obtain alloy liquid; (3) starting the longitudinal drive device to move the container cover upward and away from the smelting container, and adjusting the clamping rod longitudinally to a position matching the positioning barrel; The positioning drive device is driven to adjust the clamping rod in the horizontal direction to a position matching the positioning barrel; The lead screw drive device is driven to move the two clamping rods toward the smelting container until the clamping ends of the clamping rods extend into the positioning barrel; driving the longitudinal driving device to move the clamping device upward, thereby separating the smelting container from the smelting furnace body; Driving the position adjustment driving device to adjust the position of the position adjustment slide plate so that the smelting furnace body does not hinder the alloy liquid in the smelting container from pouring out; The pouring rod driving device is driven to rotate the pouring connection block, thereby driving the clamping fixed frame to rotate, and then pouring the alloy liquid in the smelting container, casting it into the mold, and obtaining the ferrocerium alloy after cooling.

10. The method according to claim 9, characterized in that The amount of raw material iron is 1 to 9.9 parts by weight, and the amount of raw material cerium can be 0.1 to 9 parts by weight; In step (2), the smelting is carried out at 1530-1630° C., and the temperature is kept for 5-10 minutes after the raw material iron and raw material cerium are completely melted; The mold is a cast iron ingot mold, and the cooling method is natural cooling.

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