Vertical pouring equipment for electric arc furnace

Abstract

The utility model discloses vertical pouring equipment for an electric arc furnace. The vertical pouring equipment comprises a protective outer cylinder and a storage inner cylinder, by the adoption of the alarm and the positioning piece, when follow-up liquid enters and exits, the air pressure value can change to a certain degree along with the change of the temperature, but is within the preset range, when the protective outer barrel or the storage inner barrel is damaged, a gap can be generated, at the moment, internal gas can leak out, and the safety of the liquid storage barrel is improved. At the moment, the air pressure value detected by the air pressure sensor is far smaller than a preset range, the alarm is triggered to give an alarm, personnel can stop the machine in time conveniently, and when the storage inner barrel is damaged, high-temperature liquid leaks out through the damaged position and melts the connecting rod, so that the safety of the storage inner barrel is improved. At the moment, the positioning piece which is not fixed falls off under the action of the balancing weight, subsequent personnel can quickly position the damaged part by observing the area of the positioning piece, and the beneficial effects of penetrating alarm and damage positioning are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of molding pouring equipment, and specifically, to a vertical pouring equipment for an electric arc furnace. Background Technique

[0002] An electric arc furnace is an electric furnace that uses the high temperature generated by an electrode arc to smelt ores and metals. After the smelting is completed, pouring equipment is required to inject the liquid from the ladle into the mold to achieve the pouring and molding operation.

[0003] In the existing public technology, the application number is: CN201821212698.3, an organic glass vertical pouring equipment, including a motor, a stirring tank, a reaction kettle, electric heating tubes, a pouring tube, a template fixing plate, a frame, wheels, etc. An organic glass vertical pouring equipment disclosed by the utility model improves the pouring efficiency and the controllability of pouring by setting an annular pouring tube, a pouring solenoid valve, a pouring tube, an infrared distance sensor, etc.; by setting an upper mold fixing plate, an upper mold fixing plate base, a connecting rod, a lower mold fixing plate, a lower mold fixing plate base, etc., the equipment can pour multiple molds simultaneously, improving the pouring efficiency. By adopting the vertical pouring method, the floor area of the equipment is saved and the space utilization rate is improved.

[0004] However, the above patent still has certain disadvantages when in use: when it is used for vertical pouring of an electric arc furnace, since most of the structures for storing liquid are single-layer structures, with the increase in the number of uses and improper operations by personnel, the structure will be damaged. At this time, the high-temperature liquid will flow out from the damaged part, thereby threatening the personal safety of the operators. The safety in use is not very good, and it is impossible to give a warning of the damage and locate the damaged area in time, which is not convenient for personnel to deal with in time and reduces the overall use effect of the device.

[0005] Regarding the problems in the related technology, no effective solution has been proposed yet. Content of the Utility Model

[0006] (1) Technical Problems to be Solved

[0007] In view of the deficiencies of the prior art, the utility model provides a vertical pouring equipment for an electric arc furnace, which has the advantages of high safety, penetration alarm, and damage location, thereby solving the problems in the above background technique.

[0008] (2) Technical Solutions

[0009] To achieve the above advantages of high safety, penetration alarm, and damage location, the specific technical solutions adopted by the utility model are as follows:

[0010] An electric arc furnace vertical pouring device includes a protective outer cylinder and a storage inner cylinder. A storage inner cylinder is fixedly installed in the middle of the protective outer cylinder. Several groups of connecting rods are evenly and circumferentially clamped on the outer surface of the storage inner cylinder. One end of the connecting rod is welded with a positioning piece, and the positioning piece fits on the surface of the storage inner cylinder. A counterweight is fixedly installed at the bottom position of one side surface of the positioning piece. A pressure sensor is installed at the top end inside the protective outer cylinder. An air inlet pipe and a pressure relief valve are respectively installed at both sides of the top of the protective outer cylinder. An alarm is installed at one side position of the top of the protective outer cylinder.

[0011] Furthermore, a material collecting hopper is welded at the bottom end inside the storage inner cylinder. Discharge pipes are symmetrically installed at both sides of the bottom of the material collecting hopper. One end of the discharge pipe penetrates through one side of the protective outer cylinder, and a solenoid valve is installed on the surface of the discharge pipe.

[0012] Furthermore, feeding pipes are symmetrically installed at both sides of the middle position of the top surface of the protective outer cylinder. One end of the feeding pipe penetrates through one side of the protective outer cylinder and communicates with the top position of the storage inner cylinder.

[0013] Furthermore, a motor is installed at the middle position of the top of the protective outer cylinder. A driving shaft is installed at the output end of the motor. The driving shaft penetrates through one side of the protective outer cylinder and one side of the storage inner cylinder and is connected to a stirring blade located inside the storage inner cylinder.

[0014] Furthermore, fixing blocks are symmetrically welded at the top positions of both side surfaces of the protective outer cylinder. A support rod is welded at the bottom position of the fixing block. A chassis is installed at the bottom position of the support rod. Several groups of universal wheels are symmetrically installed at both sides of the bottom of the chassis.

[0015] Furthermore, a controller is installed at the bottom end of the protective outer cylinder.

[0016] Furthermore, a sealing plug is installed at the top position of the air inlet pipe.

[0017] Furthermore, the connecting rod is of a T-shaped structure.

[0018] (III) Beneficial effects

[0019] Compared with the prior art, the present utility model provides an electric arc furnace vertical pouring device, which has the following beneficial effects:

[0020] (1) The utility model adopts an alarm and a positioning piece. When the liquid enters and exits subsequently, with the change of temperature, the air pressure value will also change to a certain extent, but it will be within the preset range. When the protective outer cylinder or the storage inner cylinder is damaged, voids will appear. At this time, the internal gas will leak out. At this time, the air pressure value detected by the air pressure sensor will be much smaller than the preset range. At this time, the alarm will be triggered for warning, facilitating personnel to perform timely shutdown processing. When the storage inner cylinder is damaged, the high-temperature liquid will leak out through the damaged part. At this time, the high-temperature liquid will melt the connecting rod. At this time, the positioning piece without the fixing measure will fall off under the action of the counterweight. Subsequently, personnel can quickly locate the damaged part by observing the area where the positioning piece is located. It has the advantages of penetration alarm and damage positioning.

[0021] (2) The utility model adopts a storage inner cylinder and a protective outer cylinder. The overall device is arranged in a double-cylinder structure of the protective outer cylinder and the storage inner cylinder. In this way, when the storage inner cylinder or the protective outer cylinder is damaged, the liquid inside can still be stored, avoiding leakage and scalding personnel, and improving the overall use safety. It has the advantage of high safety. Brief Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a schematic structural diagram of a vertical pouring device for an electric arc furnace proposed by the present utility model;

[0024] Figure 2 It is a schematic connection diagram of the positioning piece and the connecting rod of the present utility model;

[0025] Figure 3 It is a sectional view of the connection between the storage inner cylinder and the connecting rod of the present utility model.

[0026] In the figure:

[0027] 1. Protective outer cylinder; 2. Fixed block; 3. Air inlet pipe; 4. Air pressure sensor; 5. Feed pipe; 6. Motor; 7. Driving shaft; 8. Alarm; 9. Pressure relief valve; 10. Storage inner cylinder; 11. Positioning piece; 12. Counterweight; 13. Connecting rod; 14. Support rod; 15. Hopper; 16. Controller; 17. Universal wheel; 18. Chassis; 19. Discharge pipe; 20. Solenoid valve; 21. Stirring blade. Detailed Embodiment

[0028] To further illustrate each embodiment, the present utility model provides accompanying drawings, which are part of the disclosure of the present utility model. They are mainly used to illustrate the embodiments and can cooperate with the relevant descriptions in the specification to explain the operating principle of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present utility model. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0029] According to an embodiment of the present utility model, an electric arc furnace vertical pouring device is provided.

[0030] Now, the present utility model will be further described in conjunction with the accompanying drawings and specific implementation manners. As Figures 1-3 shown, an electric arc furnace vertical pouring device according to an embodiment of the present utility model includes a protective outer cylinder 1 and a storage inner cylinder 10. A storage inner cylinder 10 is fixedly installed at the middle position inside the protective outer cylinder 1. A number of groups of connecting rods 13 are evenly and circumferentially clamped on the outer surface of the storage inner cylinder 10. One end of the connecting rod 13 is welded with a positioning piece 11, and the positioning piece 11 fits on the surface of the storage inner cylinder 10. A counterweight 12 is fixedly installed at the bottom position on one side surface of the positioning piece 11. A pressure sensor 4 is installed at the top end position inside the protective outer cylinder 1. An air inlet pipe 3 and a pressure relief valve 9 are respectively installed at both sides of the top of the protective outer cylinder 1. An alarm 8 is installed at one side position of the top of the protective outer cylinder 1.

[0031] In one embodiment, a material collecting hopper 15 is welded at the bottom end position inside the storage inner cylinder 10. Discharge pipes 19 are symmetrically installed at both sides of the bottom of the material collecting hopper 15. One end of the discharge pipe 19 penetrates through one side of the protective outer cylinder 1, and a solenoid valve 20 is installed on the surface of the discharge pipe 19. The discharge pipe 19 is provided to facilitate the subsequent discharge of the liquid and realize the pouring operation.

[0032] In one embodiment, feeding pipes 5 are symmetrically installed at both sides of the middle position on the top surface of the protective outer cylinder 1. One end of the feeding pipe 5 penetrates through one side of the protective outer cylinder 1 and communicates with the top position of the storage inner cylinder 10. The feeding pipe 5 is provided to facilitate the introduction of the liquid inside the electric arc furnace for use.

[0033] In one embodiment, a motor 6 is installed at the middle position on the top of the protective outer cylinder 1. A driving shaft 7 is installed at the output end of the motor 6. The driving shaft 7 penetrates through one side of the protective outer cylinder 1 and one side of the storage inner cylinder 10 and is connected to a stirring blade 21 located inside the storage inner cylinder 10. The stirring blade 21 is provided to prevent the liquid inside from standing and settling and ensure the smoothness of subsequent pouring.

[0034] In one embodiment, fixing blocks 2 are symmetrically welded to the top positions of both side surfaces of the protective outer cylinder 1. A support rod 14 is welded to the bottom position of the fixing block 2. A chassis 18 is installed at the bottom position of the support rod 14. A number of groups of universal wheels 17 are symmetrically installed at both bottom positions of the chassis 18. The setting of the universal wheels 17 facilitates the movement of the device, thereby facilitating the movement of the solution inside the electric arc furnace to different positions for vertical pouring operations after storage, improving the flexibility of the device.

[0035] In one embodiment, a controller 16 is installed at the bottom end position of the protective outer cylinder 1. The devices in the device can be controlled through the controller 16. Since the types of the controller 16 are diverse and the application technology is mature, no further elaboration will be made here. The required controller 16 can be easily purchased on the market.

[0036] In one embodiment, a sealing plug is installed at the top position of the air inlet pipe 3. The setting of the sealing plug is to ensure the sealing effect during subsequent use and avoid the leakage of gas.

[0037] In one embodiment, the connecting rod 13 has a T-shaped structure. The structural setting of the connecting rod 13 is to fix the positioning piece 11 on the surface position of the storage inner cylinder 10, thereby facilitating subsequent personnel to locate the damaged position. The connecting rod 13 can be made of a material with a melting point lower than the temperature of the liquid inside the storage inner cylinder 10, such as a plastic material. Common plastic materials are as follows: PP, melting temperature: 220 - 275 °C; PET, melting temperature: 254 °C. In this way, it can be used normally when there is no liquid leakage, and when high-temperature liquid leaks, it will be melted, and at this time, the positioning piece 11 will fall off. Similarly, personnel can also use a metal material or other materials with a slightly lower melting point, and no further elaboration will be made here.

[0038] Working principle: During actual use, the liquid produced inside the electric arc furnace can be transported to the interior of the storage inner cylinder 10 through the feed pipe 5. The storage inner cylinder 10 can store the high-temperature molten liquid, thus facilitating subsequent vertical pouring operations through the discharge pipe 19. After the addition of the molten liquid is completed, the operation of the motor 6 can drive the internal stirring blades 21 to rotate continuously, thereby preventing sedimentation caused by the static state of the liquid and improving the smoothness of subsequent pouring. The overall device is arranged in a double-cylinder structure of the protective outer cylinder 1 and the storage inner cylinder 10. In this way, when the storage inner cylinder 10 or the protective outer cylinder 1 is damaged, the liquid inside can still be stored, avoiding leakage and scalding personnel, and improving the overall safety in use. After the installation of the two cylinders is completed, a certain amount of inert gas can be introduced into the interior through the air inlet pipe 3. At this time, as the gas is introduced, the air pressure sensor 4 will detect that the air pressure value will also change to a certain extent. When the liquid enters and exits subsequently, the air pressure value will also change to a certain extent with the change of temperature, but it will be within the preset range. When the protective outer cylinder 1 or the storage inner cylinder 10 is damaged, voids will appear, and at this time, the internal gas will leak out. At this time, the air pressure value detected by the air pressure sensor 4 will be much smaller than the preset range, and at this time, the alarm 8 will be triggered for warning, facilitating personnel to perform timely shutdown processing to prevent the occurrence of danger during subsequent pouring. When the storage inner cylinder 10 is damaged, the high-temperature liquid will leak out through the damaged part. At this time, the high-temperature liquid will melt the connecting rod 13, and at this time, the positioning piece 11 without a fixing measure will fall off under the action of the counterweight 12. Subsequently, personnel can quickly locate the damaged part by observing the area where the positioning piece 11 is located, facilitating subsequent processing by personnel and improving the overall use effect. The overall device has the advantages of high safety, penetration alarm, and damage positioning.

[0039] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "setting", "connection", "fixation", "swivel connection", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0040] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A vertical pouring device for an electric arc furnace, comprising a protective outer cylinder (1) and a storage inner cylinder (10), characterized in that: A storage inner cylinder (10) is fixedly installed in the middle position inside the protective outer cylinder (1), and a plurality of groups of connecting rods (13) are evenly clamped around the outer surface of the storage inner cylinder (10). A positioning plate (11) is welded to one end of the connecting rod (13), and the positioning plate (11) is attached to the surface of the storage inner cylinder (10). A counterweight (12) is fixedly installed at the bottom position of one side surface of the positioning plate (11). An air pressure sensor (4) is installed at the top position inside the protective outer cylinder (1), and an air intake pipe (3) and a pressure relief valve (9) are respectively installed at both sides of the top of the protective outer cylinder (1), and an alarm (8) is installed at one side of the top of the protective outer cylinder (1).

2. The electric arc furnace vertical pouring equipment according to claim 1, characterized in that: A material collecting hopper (15) is welded at the bottom end of the storage inner cylinder (10), and discharge pipes (19) are symmetrically installed on both sides of the bottom of the material collecting hopper (15). One end of the discharge pipe (19) passes through one side of the protective outer cylinder (1), and a solenoid valve (20) is installed on the surface of the discharge pipe (19).

3. The electric arc furnace vertical pouring equipment according to claim 1, characterized in that: Feed pipes (5) are symmetrically installed on both sides of the middle of the top surface of the protective outer cylinder (1), and one end of the feed pipe (5) passes through one side of the protective outer cylinder (1) and is connected to the top of the storage inner cylinder (10).

4. The electric arc furnace vertical pouring equipment according to claim 1, characterized in that: A motor (6) is installed at the middle position of the top of the protective outer cylinder (1), and a drive shaft (7) is installed at the output end of the motor (6). The drive shaft (7) passes through one side of the protective outer cylinder (1) and one side of the storage inner cylinder (10) and is connected to a stirring blade (21) located inside the storage inner cylinder (10).

5. The electric arc furnace vertical pouring equipment according to claim 1, characterized in that: Fixed blocks (2) are symmetrically welded at the top positions of both side surfaces of the protective outer cylinder (1), support rods (14) are welded at the bottom positions of the fixed blocks (2), a chassis (18) is installed at the bottom positions of the support rods (14), and a plurality of sets of universal wheels (17) are symmetrically installed at both sides of the bottom positions of the chassis (18).

6. The electric arc furnace vertical pouring equipment according to claim 1, characterized in that: A controller (16) is installed at the bottom end of the protective outer cylinder (1).

7. The electric arc furnace vertical pouring equipment according to claim 1, characterized in that: A sealing plug is installed at the top of the air inlet pipe (3).

8. The electric arc furnace vertical pouring equipment according to claim 1, characterized in that: The connecting rod (13) is a T-shaped structure.

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