Molten steel purification device in steel casting manufacturing process

Abstract

The utility model relates to the technical field of molten steel refining and purifying, and discloses a molten steel purifying device in a steel casting manufacturing process, which comprises a base, a pouring pot is arranged on the top surface of the base, a purifying assembly is arranged on the top surface of the base, the purifying assembly comprises a sliding seat fixedly and slidably arranged on the top surface of the base, and the pouring pot is placed on the top surface of the sliding seat. A lifting plate is arranged above the base, a stirring rod is rotationally connected to the bottom surface of the lifting plate, and an inflation pipe is fixed to the bottom surface of the lifting plate in a penetrating mode. The stirring rod is arranged to stir and mix molten steel, argon is filled into the molten steel through the gas filling pipe in the process, when the stirring rod enables the molten steel to rotate or do vortex motion, argon bubbles can be evenly distributed in the molten steel, and the bubbles are prevented from being concentrated or gathered; and the uniformly distributed bubbles can increase the contact area with the molten steel and improve the removal of impurities, and the fluidity of the molten steel is improved by stirring, so that the inclusions are easier to move to the vicinity of the bubbles and are brought to the surface.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of molten steel refining and purifying, especially to a molten steel purifying device in the manufacturing process of cast steel parts. BACKGROUND

[0002] Cast iron is widely used in mechanical equipment components of metallurgy, mining, building materials, cement, railway, electric power, petroleum chemical industry, military industry and other industries. The wear resistance and service life of cast iron castings have a very important relationship with metallurgical quality. In the manufacturing process of cast steel parts, non-metallic inclusions and gas impurities often exist in molten steel. These impurities will affect the mechanical properties and service life of cast steel parts. Therefore, it is necessary to purify and remove impurities from molten steel.

[0003] The existing improved molten steel purifying device (publication number: CN217202828U) has at least the following disadvantages: the device does not have a stirring and mixing mechanism during use, causing the inert gas to quickly float along the area with the smallest resistance when rushing into the molten steel, and unable to be evenly distributed in the entire molten steel volume, resulting in incomplete purification of the molten steel, and the impurities (such as non-metallic inclusions and dissolved gas) in some areas cannot be effectively removed. In addition, the device is not easy to take out the molten steel after purifying, and an additional tilting mechanism needs to be set to slowly pour the molten steel into a pouring pot for pouring, which prolongs the molten steel purification time and causes the molten steel to cool down quickly, affecting the subsequent pouring. Therefore, the utility model is proposed. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art and provides a molten steel purifying device in the manufacturing process of cast steel parts.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A molten steel purifying device in the manufacturing process of cast steel parts, comprising a base, a pouring pot is arranged on the top surface of the base, a purifying assembly is arranged on the top surface of the base, the purifying assembly comprises a sliding seat fixedly arranged on the top surface of the base, the pouring pot is arranged on the top surface of the sliding seat, a lifting plate is arranged above the base, a stirring rod is rotatably connected to the bottom surface of the lifting plate, and an inflation pipe is fixedly arranged on the bottom surface of the lifting plate.

[0007] As a further scheme of the utility model, three sliding grooves are arranged on the top surface of the base, a lead screw is rotatably connected to the inside of the sliding groove at the middle position of the base, the sliding seat is threadedly connected to the outer wall of the lead screw, a first motor is fixedly arranged on the front side of the base, the output shaft of the first motor is fixedly connected to the front end of the lead screw, a hydraulic rod is fixedly arranged on the top surface of the base, the top end of the telescopic rod of the hydraulic rod is fixedly connected to the bottom surface of the lifting plate, a second motor is fixedly arranged on the top surface of the lifting plate, and the output shaft of the second motor is fixedly connected to the top end of the stirring rod.

[0008] As a further scheme of the utility model, the top surface of the base is fixed with two limiting barrels, a limiting rod is slidably arranged in the limiting barrel, the top end of the limiting rod is fixed with the bottom surface of the lifting plate, a supporting rod is fixed in the sliding groove near the left and right sides of the base, and the sliding seat is slidably arranged on the outer wall of the supporting rod.

[0009] As a further scheme of the utility model, the top surface of the sliding seat is fixed with a positioning barrel, and the pouring kettle is movably sleeved in the positioning barrel.

[0010] As a further scheme of the utility model, the top surface of the positioning barrel is fixed with a supporting frame, and the hanger of the pouring kettle abuts against the top surface of the supporting frame.

[0011] As a further scheme of the utility model, the inflatable pipe is made of ceramic material, a hose is connected to the top end of the inflatable pipe, and an argon tank is connected to the end of the hose away from the inflatable pipe.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] By arranging the stirring rod to stir and mix the molten steel and by arranging the inflatable pipe to inject argon into the molten steel in the process, when the stirring rod makes the molten steel produce rotating or vortex motion, the argon bubbles can be uniformly distributed in the molten steel, the bubbles are prevented from being concentrated or gathered, the uniformly distributed bubbles can increase the contact area with the molten steel, improve the removal of impurities, and the stirring improves the flowability of the molten steel, so that the inclusions are more easily moved to the vicinity of the bubbles and taken to the surface. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 A three-dimensional structure schematic view of the molten steel purification device in the manufacturing process of the cast steel part is provided for the utility model;

[0015] Figure 2 A three-dimensional structure schematic view of the base of the molten steel purification device in the manufacturing process of the cast steel part is provided for the utility model;

[0016] Figure 3 A three-dimensional structure schematic view of the lifting plate of the molten steel purification device in the manufacturing process of the cast steel part is provided for the utility model;

[0017] Figure 4 A three-dimensional structure schematic view of the supporting frame of the molten steel purification device in the manufacturing process of the cast steel part is provided for the utility model.

[0018] In the figure: 1, base; 101, pouring kettle; 2, sliding seat; 201, lifting plate; 202, stirring rod; 203, inflation pipe; 204, sliding groove; 205, screw rod; 206, hydraulic rod; 3, limiting cylinder; 301, limiting rod; 302, supporting rod; 4, positioning cylinder; 5, supporting frame; 6, hose. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described in combination with specific embodiments.

[0020] In the description of the utility model, it should be pointed out that the orientation or position relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like is the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the utility model, it should be pointed out that, unless otherwise specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0022] As shown in Figures 1-4 A molten steel purification device in a cast steel manufacturing process, comprising a base 1, the top surface of the base 1 is provided with a pouring kettle 101, the top surface of the base 1 is provided with a purification assembly, the purification assembly comprises a sliding seat 2 fixedly and slidingly arranged on the top surface of the base 1, the pouring kettle 101 is placed on the top surface of the sliding seat 2, a lifting plate 201 is arranged above the base 1, the bottom surface of the lifting plate 201 is rotatably connected with a stirring rod 202, and the bottom surface of the lifting plate 201 penetrates and is fixedly connected with an inflation pipe 203.

[0023] As shown in Figures 2-4As shown in the figure, in this embodiment, the top surface of the base 1 is provided with three sliding grooves 204, a lead screw 205 is rotatably connected inside the sliding groove 204 at the middle position of the base 1, the sliding seat 2 is threadedly connected with the outer wall of the lead screw 205, the front side of the base 1 is fixedly provided with a first motor, the output shaft of the first motor is fixed with the front end of the lead screw 205, the top surface of the base 1 is fixedly provided with a hydraulic rod 206, the top end of the telescopic rod of the hydraulic rod 206 is fixed with the bottom surface of the lifting plate 201, the top surface of the lifting plate 201 is fixedly provided with a second motor, the output shaft of the second motor is fixed with the top end of the stirring rod 202, the lead screw 205 is driven to rotate by starting the first motor, under the action of the threadedly connected sliding seat 2 and the outer wall of the lead screw 205, the pouring pot 101 is moved to the lower side of the lifting plate 201, then the hydraulic rod 206 is started to drive the stirring rod 202 and the inflation pipe 203 to enter the molten steel, then the molten steel purifying agent is poured into the top surface of the molten steel, at this time the second motor is started to drive the stirring rod 202 to rotate and stir and mix the molten steel, in this process, the valve of the argon tank is opened, so that the argon is injected into the molten steel through the hose 6 and the inflation pipe 203, when the stirring rod 202 makes the molten steel produce rotation or vortex motion, the argon bubbles can be uniformly distributed in the molten steel, avoiding the concentration or aggregation of the bubbles, and the uniformly distributed bubbles can increase the contact area with the molten steel, improve the removal of impurities, and the stirring improves the fluidity of the molten steel, so that the inclusions are more easily moved to the vicinity of the bubbles and brought to the surface.

[0024] As shown in the figure, Figures 2-4 In this embodiment, the top surface of the base 1 is fixedly provided with two limiting cylinders 3, a limiting rod 301 is slidably arranged inside the limiting cylinder 3, the top end of the limiting rod 301 is fixed with the bottom surface of the lifting plate 201, a supporting rod 302 is fixedly arranged inside the sliding groove 204 near the left and right sides of the base 1, and the sliding seat 2 is slidably arranged on the outer wall of the supporting rod 302. The limiting cylinder 3 and the limiting rod 301 can limit and support the lifting of the lifting plate 201, and the supporting rod 302 can support the sliding of the sliding seat 2.

[0025] As shown in the figure, Figures 2-4 In this embodiment, the top surface of the sliding seat 2 is fixedly provided with a positioning cylinder 4, and the pouring pot 101 is movably sleeved inside the positioning cylinder 4. The positioning cylinder 4 can position the pouring pot 101.

[0026] As shown in the figure, Figures 2-4 In this embodiment, the top surface of the positioning cylinder 4 is fixedly provided with a supporting frame 5, and the hanger of the pouring pot 101 abuts against the top surface of the supporting frame 5. The supporting frame 5 can support and position the hanger of the pouring pot 101.

[0027] As shown in the figure, Figures 2-4As shown, in the embodiment, the inflation pipe 203 is made of ceramic material, the top end of the inflation pipe 203 is connected with the hose 6, the end of the hose 6 away from the inflation pipe 203 is connected with the argon tank, by setting the inflation pipe 203 to be made of ceramic material, high temperature damage can be prevented, and the hose 6 is convenient for self-adaptive bending when the lifting plate 201 is lifted.

[0028] From the above description, it can be seen that the above-mentioned embodiments of the utility model realize the following technical effects: in use, when steel water purification is needed, the pouring pot 101 filled with steel water is hoisted to the position of the limiting cylinder 3 and is sleeved, then the first motor is started to drive the screw rod 205 to rotate, under the action of the screw thread connection between the sliding seat 2 and the outer wall of the screw rod 205, the pouring pot 101 is moved to the position below the lifting plate 201, then the hydraulic rod 206 is started to drive the stirring rod 202 and the inflation pipe 203 to enter the inside of the steel water, then the steel water purification agent is poured into the top surface of the steel water, at this time, the second motor is started to drive the stirring rod 202 to rotate and to stir and mix the steel water, in this process, the valve of the argon tank is opened, so that the argon is flushed into the steel water through the hose 6 and the inflation pipe 203, when the stirring rod 202 makes the steel water produce rotating or vortex motion, the argon bubbles can be uniformly distributed in the steel water, the concentrated or gathered bubbles are avoided, the uniformly distributed bubbles can increase the contact area with the steel water, the impurities are removed, and the stirring improves the flowability of the steel water, so that the inclusions are more easily moved to the vicinity of the bubbles and are taken to the surface, after the steel water purification is completed, the stirring rod 202 and the inflation pipe 203 are driven to be drawn out of the steel water, then the pouring pot 101 is driven to the position away from the lifting plate 201, at this time, the impurities on the surface of the steel water are scraped off using a tool, and then the pouring pot 101 is hoisted by the hoisting mechanism to carry out pouring operation.

[0029] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model, under the premise of not departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed.

Claims

1. A device for purifying molten steel in a process for manufacturing a cast steel piece, comprising a base (1), characterized in that, The top surface of the base (1) is provided with a pouring kettle (101), the top surface of the base (1) is provided with a purification assembly, the purification assembly comprises a sliding seat (2) fixedly arranged on the top surface of the base (1), the pouring kettle (101) is placed on the top surface of the sliding seat (2), the top surface of the base (1) is provided with a lifting plate (201), the bottom surface of the lifting plate (201) is rotatably connected with a stirring rod (202), and the bottom surface of the lifting plate (201) is fixedly penetrated with an inflation pipe (203).

2. A device for purifying molten steel in a process for manufacturing a cast steel member according to claim 1, characterized in that, The top surface of the base (1) is provided with three sliding grooves (204), the inner part of the sliding groove (204) at the middle position of the base (1) is rotatably connected with a lead screw (205), the sliding seat (2) is threadedly connected with the outer wall of the lead screw (205), the front side of the base (1) is fixedly provided with a first motor, the output shaft of the first motor is fixedly connected with the front end of the lead screw (205), the top surface of the base (1) is fixedly provided with a hydraulic rod (206), the top end of the telescopic rod of the hydraulic rod (206) is fixedly connected with the bottom surface of the lifting plate (201), the top surface of the lifting plate (201) is fixedly provided with a second motor, and the output shaft of the second motor is fixedly connected with the top end of the stirring rod (202).

3. A device for purifying molten steel in a process for manufacturing a cast steel member according to claim 2, wherein The top surface of the base (1) is fixedly provided with two limiting cylinders (3), the inner part of the limiting cylinder (3) is slidably provided with a limiting rod (301), the top end of the limiting rod (301) is fixedly connected with the bottom surface of the lifting plate (201), the inner part of the sliding groove (204) close to the left and right sides of the base (1) is fixedly provided with a supporting rod (302), and the sliding seat (2) is slidably arranged on the outer wall of the supporting rod (302).

4. A device for purifying molten steel in a process for manufacturing a cast steel member according to claim 3, wherein The top surface of the sliding seat (2) is fixedly provided with a positioning cylinder (4), and the pouring kettle (101) is movably sleeved in the inner part of the positioning cylinder (4).

5. A device for purifying molten steel in a process for manufacturing a cast steel member according to claim 4, wherein The top surface of the positioning cylinder (4) is fixedly provided with a supporting frame (5), and the hanger of the pouring kettle (101) abuts against the top surface of the supporting frame (5).

6. A device for purifying molten steel in a process for manufacturing a cast steel member according to claim 5, wherein The inflation pipe (203) is made of ceramic material, the top end of the inflation pipe (203) is connected with a hose (6), and the end of the hose (6) away from the inflation pipe (203) is connected with an argon tank.

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