CN107138695B - Casting device and magnesium-silicon-iron alloy granulating process - Google Patents
Casting device and magnesium-silicon-iron alloy granulating process Download PDFInfo
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- CN107138695B CN107138695B CN201710315503.1A CN201710315503A CN107138695B CN 107138695 B CN107138695 B CN 107138695B CN 201710315503 A CN201710315503 A CN 201710315503A CN 107138695 B CN107138695 B CN 107138695B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
- B22D1/007—Treatment of the fused masses in the supply runners
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/0056—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 using cored wires
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/0056—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 using cored wires
- C21C2007/0062—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 using cored wires with introduction of alloying or treating agents under a compacted form different from a wire, e.g. briquette, pellet
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- Engineering & Computer Science (AREA)
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- Mechanical Engineering (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
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Abstract
The invention relates to the field of ferroalloy production, and aims to provide a casting device and a magnesium-silicon-ferroalloy granulation process, wherein the casting device comprises a container, a partition plate and a hopper, the partition plate is fixed in the container and divides the container into a plurality of casting liquid channels, the width of each casting liquid channel is 20-25 mm, the height of each casting liquid channel is 800-1200 mm, a cooling water channel is arranged on the partition plate, and the hopper is arranged on the container; the magnesium silicon iron alloy granulation process comprises the following steps: step 1, mounting a casting device at the lower end of a pouring opening of a smelting furnace, wherein the distance from the casting device to the ground is 3-5 m; step 2, tilting the furnace, and finishing casting by depending on the dead weight of the magnesium-silicon-iron alloy casting block; and 3, screening the crushed magnesium-silicon alloy, and crushing and shaping. The invention has the beneficial effects that: the channel is designed into a certain size, so that the alloy block is vertically molded at one time to be close to the size specification required by downstream granularity, and the uniformity and the stability of the alloy block are good; the falling height of the formed alloy is reasonable, the crushing workload is reduced, and the yield is high.
Description
Technical Field
The invention relates to the field of ferroalloy production, in particular to a casting device and a magnesium-silicon-ferroalloy granulation process.
Background
In the process of producing castings by a casting method in the steel industry, a certain amount of alloy elements are often added into molten steel so as to remove impurities in the molten steel and improve the quality and mechanical properties of the castings. In the casting process, trace modified additive elements are firstly melted into the ferrosilicon alloy, and then the ferrosilicon alloy is added into molten steel in the form of ferrosilicon alloy, which is collectively called as casting modified material. The cast modified materials are various in types, and most of the cast modified materials are obtained by adding alloy ingots into molten iron and steel for quenching and tempering after the alloy ingots are processed to a certain granularity. With the development of the technology in the casting industry, people find that the ferrosilicon alloy sinks in molten steel and has different melting speeds due to different particle sizes and shapes of ferrosilicon ingots, so that the quality of castings is greatly influenced. Therefore, the requirements on the granularity and the morphology of the alloy additive added into molten steel or molten iron tend to be strict in more and more fields such as special steel casting, large military slab material casting, automobile and ship engine casting, and the like.
The prior magnesium silicon iron alloy is mainly processed by adopting flat die casting to be thick blocks and carrying out jaw crushing and double-roller crushing, and the produced particles have irregular shapes, poor granularity uniformity and low crushing yield, and the stability of the product is not easy to control in the using process of the downstream casting industry, and certain defects exist in the using process. Therefore, there is a need to provide a granulation process of magnesium-silicon-iron alloy with good particle size uniformity and high crushing yield.
Disclosure of Invention
The invention aims to overcome the defects, provide a magnesium-silicon-iron alloy granulating process with good granularity uniformity and high crushing yield, and also provide a casting device capable of carrying out continuous casting.
In order to solve the technical problems, the invention adopts the technical scheme that:
the utility model provides a casting device, includes container and hopper, the container is the cuboid structure, the container is equipped with feed inlet and discharge gate, be equipped with the baffle in the container, the baffle sets up along the direction of feed inlet to the discharge gate, the baffle separates into the casting liquid passageway more than two with the container, the width of casting liquid passageway is 20mm-25mm, highly is 800mm-1200mm, be equipped with the cooling water passageway along baffle length direction in the baffle, the hopper links to each other with the feed inlet of container.
Furthermore, the number of the partition plates is more than two, and the partition plates are arranged in parallel at equal intervals along the length direction of the container.
Furthermore, the cooling water channel is a cylindrical groove with the diameter of 25mm, and the diameters of a water inlet of the cooling water channel and a water outlet of the cooling water channel are both 20 mm.
Furthermore, the water inlet of the cooling water channel is positioned at the lower part of the partition plate, and the water outlet of the cooling water channel is positioned at the upper part of the partition plate.
Furthermore, the hopper is of a quadrangular frustum pyramid structure with an upper opening and a lower opening, the side length of the lower bottom surface of the quadrangular frustum pyramid is smaller than that of the upper bottom surface, and the lower bottom surface of the quadrangular frustum pyramid is matched with the feed inlet of the container.
Furthermore, a heat-insulating layer is arranged on the hopper.
Furthermore, the heat-insulating layer is made of high-temperature refractory bricks.
Furthermore, the partition plate is made of high-temperature-resistant stainless steel with smooth side walls.
The invention has the beneficial effects that: by designing the size of the casting liquid channel, the liquid alloy can be vertically formed downwards along the channel at one time to form an ingot with the size specification close to the downstream granularity requirement, and the particle size of the magnesium-silicon-iron alloy ingot can be controlled to be 10-25 mm; controlling the casting liquid channel to have a certain height to ensure that the liquid magnesium-silicon-iron alloy is completely solidified into an ingot; the cooling water channel arranged on each partition board ensures that the smelted magnesium-silicon-iron alloy liquid entering the channel can be rapidly solidified; the active element oxidation rate is low in the casting process, the component segregation is small, and the effects of spheroidization, inoculation, impurity removal and the like are obviously improved when the cast magnesium-silicon-iron alloy is used as an additive in the downstream iron and steel casting industry; the casting operation can be continuously carried out, and is suitable for industrial production.
In order to solve another technical problem, a magnesium-silicon-iron alloy granulation process using a casting device is also provided, which comprises the following steps:
step 1, mounting a casting device at the lower end of a pouring opening of a smelting furnace, and enabling the casting device to be 3-5 m away from the ground level;
step 2, pouring the alloy into a furnace after the magnesium-silicon-iron alloy is smelted in the alloy smelting furnace, pouring magnesium-silicon-iron alloy liquid into a hopper of a casting device, introducing the magnesium-silicon-iron alloy liquid into a casting liquid channel surrounded by a partition plate and the partition plate or a casting liquid channel surrounded by the partition plate and a container, introducing cooling water into the cooling water channel, and solidifying the magnesium-silicon-iron alloy liquid flowing into the casting liquid channel into a magnesium-silicon-iron alloy casting block to finish casting;
and 3, the magnesium-silicon-iron alloy ingot obtained in the step 2 falls onto a horizontal ground from a feed opening of the container, is crushed into magnesium-silicon-iron alloy particles, the magnesium-silicon-iron alloy particles are screened, the magnesium-silicon-iron alloy particles meeting the particle size requirement are directly used as products, and the screened coarse-grained products are crushed and shaped to meet the particle size requirement.
Further, the crushing and shaping process in step 3 is performed in a toothed roll crusher.
The invention has the beneficial effects that: the casting device is arranged at the lower end of the pouring opening of the smelting furnace, and the distance from the casting device to the ground plane is designed to be a certain height, so that the falling height of the formed alloy casting block is reasonable, the magnesium-silicon-iron alloy can fall under the action of self weight and fall to the ground to be crushed into a product to the maximum extent at one time; the appearance of the magnesium-silicon-iron alloy particles formed after the magnesium-silicon-iron alloy ingot is crushed is close to square and round, the generation of long-strip-shaped and flat-shaped products is greatly reduced, and the uniformity and the stability are good; 60% of the magnesium-silicon-iron particles subjected to self-weight falling crushing are directly the required product granularity, so that the workload of the subsequent crushing process is reduced, the service life of crushing equipment is prolonged, and the problems of generation of fine powder and low yield in the crushing process are also reduced; the crushed magnesium-silicon-iron alloy has better granularity specification and appearance, is used as a high-temperature steel liquid additive in the downstream casting industry, and can effectively improve the comprehensive performance and yield of downstream castings.
Drawings
FIG. 1 is a schematic view of a partition structure of a casting apparatus according to an embodiment of the present invention.
FIG. 2 is a schematic view of a partition structure of a casting apparatus according to an embodiment of the present invention (arrows indicate the flow direction of molten MgSiFe alloy).
Description of reference numerals:
1-a container; 2-a separator; 3-a casting liquid channel; 4-cooling water channel; 5-a water inlet; 6-water outlet; 7-a hopper; 8-insulating layer.
Detailed Description
In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
The most key concept of the invention is as follows: designing the size of a casting liquid channel to enable an ingot of the liquid magnesium-silicon-iron alloy which is vertically formed at one time to be close to the size specification required by downstream granularity; the distance between the casting device and the ground is reasonably designed, so that the cast ingot is crushed into a product after falling by self weight to the maximum extent.
Referring to fig. 1-2, the casting device of the present embodiment includes a container 1 and a hopper 7, where the container 1 is a rectangular parallelepiped structure, the container 1 is provided with a feeding port and a discharging port, a partition plate 2 is disposed in the container 1, the partition plate 2 is disposed along the feeding port toward the discharging port, the partition plate 2 partitions the container 1 into more than two casting liquid channels 3, the casting liquid channels 3 have a width of 20mm to 25mm and a height of 800mm to 1200mm, a cooling water channel 4 is disposed in the partition plate 2 along a length direction of the partition plate 2, and the hopper 7 is connected to the feeding port of the container 1.
The working process of the invention is as follows: welding a partition plate 2 on the container 1 along the direction from a feeding hole to a discharging hole of the container 1, so that the partition plate 2 is transversely arranged in the container 1 in a fence manner, the container 1 is divided into a plurality of casting liquid channels 3 by the partition plate 2, and the width of each casting liquid channel 3 is controlled to be 20-25 mm, and the height of each casting liquid channel 3 is controlled to be 800-1200 mm; a cooling water channel 4 for circulating water is formed in the partition plate 2 through grooving, and the liquid alloy flowing through the casting liquid channel 3 can be cooled and solidified by introducing water into the cooling water channel 4; and welding the hopper 7 on the feeding hole of the container 1, so that the liquid alloy in the hopper 7 can be cooled and solidified by the cooling water in the cooling water channel 4 along the casting liquid channel 3 to form an alloy ingot, and discharging the alloy ingot through the discharging hole.
From the above description, the beneficial effects of the present invention are: by designing the size of the casting liquid channel, the liquid magnesium-silicon-iron alloy can be vertically formed into an ingot with a size specification close to the downstream granularity requirement along the casting liquid channel in one step, and the particle size of the magnesium-silicon-iron alloy ingot can be controlled to be 10-25 mm; designing a casting liquid channel to have a certain height so as to ensure that the liquid magnesium-silicon-iron alloy is completely solidified into an ingot; the cooling water channel arranged on each partition board ensures that the smelted magnesium-silicon-iron alloy liquid entering the channel can be rapidly solidified, the oxidation rate of active elements is low in the casting process, and the component segregation is small, so that the effects of spheroidization, inoculation, impurity removal and the like of the cast magnesium-silicon-iron alloy are remarkably improved when the cast magnesium-silicon-iron alloy is used as an additive in the downstream steel casting industry; the casting operation can be continuously carried out, and is suitable for industrial production.
Furthermore, the number of the partition boards 2 is more than two, and the partition boards 2 are arranged in parallel along the length direction of the container 1 at equal intervals.
As can be seen from the above description, the partition plates are transversely arranged on the container in a fence type, the partition plates divide the length of the container at equal intervals, and a required casting liquid channel is defined between the partition plates and the container wall.
Further, the cooling water channel 4 is a cylindrical groove with the diameter of 25mm, and the diameters of the water inlet 5 of the cooling water channel 4 and the water outlet 6 of the cooling water channel 4 are both 20 mm.
As can be seen from the above description, the diameters of the water inlet and the cooling water outlet are smaller than the diameter of the cooling water channel, so that the cooling water can stay in the channel for a longer time, the liquid alloy in the channel can be fully cooled, and the liquid alloy can be completely solidified.
Further, the water inlet 5 of the cooling water channel 4 is located at the lower part of the partition board 2, and the water outlet 6 of the cooling water channel 4 is located at the upper part of the partition board 2.
From the above description, the cooling effect is better in the cooling form of the lower inlet and the upper outlet, and the solidification of the liquid magnesium-silicon-iron alloy is ensured to be more complete.
Further, the hopper 7 is of a quadrangular frustum pyramid structure with an upper opening and a lower opening, the side length of the lower bottom surface of the quadrangular frustum pyramid is smaller than that of the upper bottom surface, and the lower bottom surface of the quadrangular frustum pyramid is matched with the feed inlet of the container 1.
As can be seen from the above description, the hopper with the quadrangular frustum pyramid structure enables the liquid alloy to smoothly flow into the casting liquid channel, so that continuous casting can be realized.
Further, a heat insulation layer 8 is arranged on the hopper 7.
Further, the heat-insulating layer 8 is made of high-temperature refractory bricks.
According to the description, the heat-insulating layer plays a role in heat insulation, so that the liquid magnesium-silicon-iron alloy is prevented from melting, the liquid magnesium-silicon-iron alloy can be better filled in the channel, and the overall dimension of the cast magnesium-silicon-iron alloy ingot is ensured.
Furthermore, the partition board 2 is made of high-temperature resistant stainless steel with smooth side walls.
From the above description, the separator made of the high temperature resistant stainless steel can prevent the separator from being eroded and melted by the liquid magnesium-silicon-iron alloy after high temperature smelting; the partition plate with the smooth outer wall can prevent liquid magnesium-silicon-iron alloy from being adhered to the partition plate, and the continuity of the casting process is guaranteed.
The invention also provides a magnesium-silicon-iron alloy granulating process using the casting device, which comprises the following steps:
step 1, mounting a casting device at the lower end of a pouring opening of a smelting furnace, and enabling the casting device to be 3-5 m away from the ground level;
step 2, pouring the alloy into a furnace after smelting the magnesium-silicon-iron alloy in the alloy smelting furnace, pouring the magnesium-silicon-iron alloy liquid into a hopper of a casting device, introducing the magnesium-silicon-iron alloy liquid into a casting liquid channel surrounded by a partition plate and the partition plate or a casting liquid channel surrounded by the partition plate and a container, introducing cooling water into the cooling water channel, and solidifying the magnesium-silicon-iron alloy liquid flowing into the casting liquid channel into a magnesium-silicon-iron alloy casting block under the cooling effect of the cooling water in the cooling water channel to finish casting;
and 3, the magnesium-silicon-iron alloy ingot obtained in the step 2 falls onto a horizontal ground from a feed opening of the container, falls under the action of gravity of the magnesium-silicon-iron alloy ingot and is crushed into magnesium-silicon-iron alloy particles, the magnesium-silicon-iron alloy particles are screened, the magnesium-silicon-iron alloy particles meeting the particle size requirement are directly used as products, and the screened coarse-grained products are crushed and shaped to meet the particle size requirement, so that granulation is completed.
The invention has the beneficial effects that: the magnesium-silicon-iron casting device is arranged at the lower end of a pouring opening of a smelting furnace and is at a certain height away from the ground, so that liquid magnesium-silicon-iron alloy flows downwards along a channel and is cooled into a magnesium-silicon-iron alloy casting block, the magnesium-silicon-iron alloy casting block falls under the action of self weight and is ground into products to the maximum extent at one time, the appearance of the prepared magnesium-silicon alloy particles is close to square and round, the generation of long-strip-shaped and flat-shaped products is greatly reduced, and the uniformity and the stability are good; 60% of the magnesium-silicon-iron particles subjected to self-weight falling crushing are the required product granularity, so that the workload of a subsequent crushing process is reduced, the service life of crushing equipment is prolonged, and the problems of generation of fine powder and low yield in the crushing process are also reduced; the crushed magnesium-silicon-iron alloy has better granularity specification and appearance, is used as a high-temperature steel liquid additive in the downstream casting industry, and can effectively improve the comprehensive performance and yield of downstream castings.
Further, the crushing and shaping treatment in the step 3 is performed in a toothed roll crusher.
From the above description, it can be seen that the coarse grain fraction is crushed by a toothed roll crusher to a desired grain size for the downstream steel casting industry when additives are added.
Referring to fig. 1-2, a first embodiment of the present invention is:
the utility model provides a casting device, includes container 1, baffle 2 and hopper 7, container 1, baffle 2 and hopper 7 are made by high temperature resistant stainless steel material, container 1 is the cuboid structure, the width of container is 25mm, container 1 is equipped with feed inlet and discharge gate, be equipped with baffle 2 in the container 1, baffle 2 has 29, the outer wall of baffle 2 is smooth, baffle 2 sets up along the direction of feed inlet to the discharge gate, baffle 2 separates into 30 casting liquid passageway 3 with container 1, the width of casting liquid passageway 3 is 25mm, highly is 900mm, casting liquid passageway 3 is 25mm x 900 mm's vertical passageway 3, the thickness of baffle 2 is 55mm, be equipped with cooling water passageway 4 along baffle 2 length direction in the baffle 2, cooling water passageway 4's water inlet 5 is located the lower part of baffle 2, the water outlet 6 of the cooling water channel 4 is positioned at the upper part of the partition board 2, the hopper 7 is connected with the feed inlet of the container 1, and the hopper 7 is provided with a heat-insulating layer 8.
The second embodiment of the present invention is
The improved container is further improved on the basis of the first embodiment, the cooling water channel 4 is a cylindrical groove with the diameter of 25mm, the diameters of the water inlet 5 of the cooling water channel 4 and the water outlet 6 of the cooling water channel 4 are both 20mm, the hopper 7 is of a quadrangular frustum structure with an upper opening and a lower opening, the side length of the lower bottom surface of the quadrangular frustum is smaller than that of the upper bottom surface, the lower bottom surface of the quadrangular frustum is matched with the feed inlet of the container 1, and the heat-insulating layer 8 is a high-temperature refractory brick.
A magnesium-silicon-iron alloy granulating process using a casting device comprises the following steps:
step 1, mounting a casting device at the lower end of a pouring opening of a smelting furnace, wherein the distance between the casting device and the opening of the smelting furnace is designed to be enough for the smelting furnace to overturn and pour, and the distance between the casting device and the ground plane is designed to be 3.70 m;
step 2, pouring liquid magnesium-silicon-iron alloy into a hopper 7 of a casting device by tilting the furnace after the magnesium-silicon-iron alloy is smelted in an alloy smelting furnace, enabling the liquid magnesium-silicon-iron alloy to flow into a casting liquid channel 3 enclosed by a partition plate and the partition plate or a casting liquid channel 3 enclosed by the partition plate and a container to fall and be filled, introducing cooling water into a cooling water channel 4, solidifying the magnesium-silicon-iron alloy liquid flowing into the casting liquid channel 3 into a magnesium-silicon-iron alloy cast block under the cooling action of the cooling water in the cooling water channel 4, and finishing casting by means of the dead weight of the magnesium-silicon-iron alloy cast block;
and 3, the magnesium-silicon-iron alloy ingot obtained in the step 2 falls to the horizontal ground from a feed opening of the container 1, falls and is crushed into magnesium-silicon-iron alloy particles under the action of gravity, the magnesium-silicon alloy particles are screened, lump materials with the particle size of 3-20mm meeting the particle size requirement are directly used as products, the screened coarse-grained products with the particle size of more than 20mm enter a toothed roll crusher to be crushed and shaped until the particle size meets the requirement, and granulation is finished to obtain the final product.
The magnesium-silicon-iron alloy block prepared by the method has the appearance similar to square and round, the generation of long-strip and flat products is greatly reduced, the uniformity and the stability are good, and the casting process can be continuously carried out. Meanwhile, the workload of the subsequent crushing process is reduced, and the generation of fine powder in the roller type crushing process is reduced.
In summary, according to the casting device and the magnesium-silicon-iron alloy granulation process provided by the invention, a set of casting device is designed to continuously cast the liquid magnesium-silicon-iron alloy, the size of the partition plate in the casting device and the size of the casting liquid channel are controlled to form one or more vertical casting liquid channels with a certain height, the overall size of the cast alloy is effectively controlled, the one-time vertical molding of the cast alloy is close to the size specification required by the downstream granularity, and the complete solidification of the liquid alloy can be ensured; the heat-insulating layer on the hopper ensures that liquid alloy can better fill the channel, and the alloy ingot is quickly solidified under the action of circulating cooling water in the cooling water channel which is arranged on the partition plate and is fed in and fed out from the lower part and the upper part, and falls downwards from the channel under the action of the dead weight of the magnesium-silicon-iron alloy block to finish casting; the grain size of the cast magnesium-silicon-iron alloy block is 10mm-25mm, the oxidation rate of active elements is low in the casting process, and the component segregation is small, so that when the cast magnesium-silicon-iron alloy is used as an additive in the downstream steel casting industry, the effects of spheroidization, inoculation, impurity removal and the like are obviously improved.
The casting device is arranged at the lower end of a pouring opening of a smelting furnace, and the distance from the casting device to the ground plane is designed to be a certain height, so that the falling height of the formed alloy is reasonable, the maximum amount of the alloy can fall to the ground and be crushed into products, the appearance of the prepared alloy block is close to square and round, the generation of long-strip-shaped and flat products is greatly reduced, the uniformity and the stability are good, the casting device is used for high-temperature steel liquid additives in the downstream casting industry, and the comprehensive performance and the yield of downstream castings can be effectively; meanwhile, 60% of the automatically falling and cast alloy can be automatically cracked into required product granularity, the production of strip-shaped and other special-shaped products is reduced, the workload of the subsequent crushing process is reduced, the workload of crushing equipment is reduced, and the problems of generation of fine powder and low yield in the double-roller crushing process are solved.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. A magnesium-silicon-iron alloy granulating process using a casting device is characterized by comprising the following steps:
step 1, mounting a casting device at the lower end of a pouring opening of a smelting furnace, and enabling the casting device to be 3-5 m away from the ground level;
the casting device comprises a container and a hopper, the container is of a cuboid structure and is provided with a feeding hole and a discharging hole, a partition plate is arranged in the container and is arranged along the direction from the feeding hole to the discharging hole, the partition plate divides the container into more than two casting liquid channels, the width of each casting liquid channel is 20-25 mm, the height of each casting liquid channel is 800-1200 mm, a cooling water channel is arranged in the partition plate along the length direction of the partition plate, and the hopper is connected with the feeding hole of the container;
the cooling water channel is a cylindrical groove with the diameter of 25mm, and the diameters of a water inlet of the cooling water channel and a water outlet of the cooling water channel are both 20 mm;
the water inlet of the cooling water channel is positioned at the lower part of the partition plate, and the water outlet of the cooling water channel is positioned at the upper part of the partition plate;
step 2, after the magnesium-silicon-iron alloy is smelted in the smelting furnace, pouring the smelted magnesium-silicon-iron alloy into a hopper of a casting device, pouring the magnesium-silicon-iron alloy into a casting liquid channel surrounded by a partition plate and the partition plate or a casting liquid channel surrounded by the partition plate and a container, introducing cooling water into the cooling water channel, and solidifying the magnesium-silicon-iron alloy liquid flowing into the casting liquid channel into a magnesium-silicon-iron alloy casting block to finish casting;
and 3, the magnesium-silicon-iron alloy ingot obtained in the step 2 falls onto a horizontal ground from a discharge port of the container, is crushed into magnesium-silicon-iron alloy particles, the magnesium-silicon-iron alloy particles are screened, the magnesium-silicon-iron alloy particles meeting the particle size requirement are directly used as products, and the screened coarse-grained products are crushed and shaped to meet the particle size requirement.
2. The magnesium silicon iron alloy granulation process using the casting device according to claim 1, wherein: the baffle is more than two, the baffle is along the equidistant parallel arrangement of length direction of container.
3. The magnesium silicon iron alloy granulation process using the casting device according to claim 1, wherein: the hopper is of a quadrangular frustum pyramid structure with an upper opening and a lower opening, the side length of the lower bottom surface of the quadrangular frustum pyramid is smaller than that of the upper bottom surface of the quadrangular frustum pyramid, and the lower bottom surface of the quadrangular frustum pyramid is matched with a feed inlet of the container.
4. The magnesium silicon iron alloy granulation process using the casting device according to claim 1, wherein: and the hopper is provided with a heat-insulating layer.
5. The magnesium silicon iron alloy granulation process using the casting device according to claim 4, wherein: the heat-insulating layer is made of high-temperature refractory bricks.
6. The magnesium silicon iron alloy granulation process using the casting device according to claim 1, wherein: the partition plate is made of high-temperature-resistant stainless steel with smooth side walls.
7. The magnesium silicon iron alloy granulation process using the casting device according to claim 1, wherein: the crushing and shaping treatment in the step 3 is carried out in a toothed roll crusher.
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| US3817502A (en) * | 1972-09-21 | 1974-06-18 | Mead Corp | Apparatus and method for refining molten iron |
| DE19519284C1 (en) * | 1995-05-22 | 1996-08-01 | Mannesmann Ag | Disposal of ladle and converter slag |
| WO2013152946A1 (en) * | 2012-04-13 | 2013-10-17 | Techcom Gmbh | A method for producing shot from melt, a device for carrying out same, a device for cooling melt fragments, and a die for producing shot from melt |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7744808B2 (en) * | 2007-12-10 | 2010-06-29 | Ajax Tocco Magnethermic Corporation | System and method for producing shot from molten material |
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- 2017-05-08 CN CN201710315503.1A patent/CN107138695B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3817502A (en) * | 1972-09-21 | 1974-06-18 | Mead Corp | Apparatus and method for refining molten iron |
| DE19519284C1 (en) * | 1995-05-22 | 1996-08-01 | Mannesmann Ag | Disposal of ladle and converter slag |
| WO2013152946A1 (en) * | 2012-04-13 | 2013-10-17 | Techcom Gmbh | A method for producing shot from melt, a device for carrying out same, a device for cooling melt fragments, and a die for producing shot from melt |
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| CN107138695A (en) | 2017-09-08 |
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