CN216129633U - Steel tapping surface maintenance device for uninterrupted production of converter - Google Patents

Abstract

The utility model provides a device is maintained to tapping face of incessant production of converter, belongs to converter patching device technical field, has mainly solved the problem that current repair method spends time long and artifical intensity of labour is big, including the spray gun, the spray gun slope sets up, and the inside cavity of spray gun, the trailing end connection of spray gun has the linker, and the spray gun is connected to the one end of linker, and the other end divide into two interfaces, and one of them interface passes through the trachea and connects the gas holder, and another interface passes through the elephant trunk and connects the feed bin. By arranging the spray gun, the matching communicating device is connected with the gas storage tank and the material bin, so that the repairing material is sprayed out, the blanking speed is accelerated, the automatic adding of the repairing material is realized, the labor intensity of workers is reduced, and the repairing speed is improved; the hopper is down set up in feed bin below, stores a certain amount of repair material back in the feed bin, can directly flow the hopper under the below during the repair furnace, and the strict control adds the material volume, can realize reinforced fast, further reduces repair time, does not influence normal production, does not disturb the production rhythm in disorder.

Description

Steel tapping surface maintenance device for uninterrupted production of converter

Technical Field

The utility model belongs to the technical field of converter repairing devices, and particularly relates to a tapping surface maintenance device for uninterrupted production of a converter.

Background

At present, the traditional method for maintaining the steel outlet surface of the converter in the steel plant is to utilize a forklift or a crown block to pour repairing materials for repairing the converter into the converter after the converter is shut down and then to maintain the steel outlet surface of the converter in a mode of manually throwing the repairing materials.

But the traditional method has the following defects: the labor intensity of personnel is high, the fettling material needs to be manually thrown into the high-temperature converter, the operation environment is harsh, and the operation safety of the personnel cannot be guaranteed; the situations of material collapse, material turnover, material supplement failure and the like are easily caused due to more repairing materials, uneven spreading thickness or insufficient sintering time, and even a large spray caused by the incomplete sintering and material turnover of the repairing materials can be caused to cause major safety accidents; because the repairing mass needs enough sintering time to ensure the properties of effect and safety, at least 40 minutes is needed, so that the repairing mass cannot be repaired during normal production, the repairing mass can be operated only by stopping the furnace for a long time, and the production efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects in the background technology, the utility model provides the steel tapping surface maintenance device for the continuous production of the converter, which utilizes a storage bin and an air storage tank to be matched with a spray gun together to replace the mode of manually feeding repairing materials, improves the working efficiency and reduces the manual labor intensity.

The utility model provides a device is maintained to tapping face of incessant production of converter, includes the spray gun, its characterized in that, the slope of spray gun sets up, the inside cavity of spray gun, and the trailing end connection of spray gun has the linker, and the spray gun is connected to the one end of linker, and the other end divide into two interfaces, and one of them interface passes through the trachea and connects the gas holder, and another interface passes through the elephant trunk and connects the feed bin.

The rear end of the spray gun is provided with a communicating vessel which is connected with a gas storage tank and a storage bin, gas and a repair material are arranged in the spray gun together, the repair material is driven by the gas to be sprayed into the converter, the residual slag in the converter reacts with the repair material, meanwhile, the gas can accelerate the blanking speed, and the repair material is bonded to the steel outlet surface of the converter after being decomposed by reaction, so that the aims of increasing the thickness of a refractory material and reducing the corrosion to a furnace lining are fulfilled.

Furthermore, the inner center position of the spray gun is a mixing channel, cooling water inlet pipelines are arranged on two sides of the mixing channel, and a cooling water outlet pipeline is arranged on the outer side of the cooling water inlet pipeline. The mixing channel in the middle of the spray gun is used for flowing out the mixture of gas and repair materials, and the two sides of the mixing channel are provided with cooling water circulation channels to cool the mixing channel of the spray gun, so that the service life of the spray gun is prolonged.

Further, the air pipe and the chute are communicated with the mixing channel of the spray gun through a communicating vessel. The communicating vessel is in the shape that three interfaces are mutually connected, and gas and repair materials flow into the other interface through the two interfaces together so as to enter a mixing channel of the spray gun.

Furthermore, three interfaces at two ends of the communicating vessel are connected with the spray gun, the air pipe and the chute at two ends by flanges. The flange connection is convenient to disassemble and maintain, and the connection is stable.

Further, the pressure in the air storage tank is 0.8-1.6 MPa. The spray gun is used as a high-pressure spray gun to spray the repairing material into the converter by means of high-pressure gas, so that the repairing material can be contacted with the inner wall of the converter as much as possible, the repairing effect is improved, meanwhile, the high-pressure gas can prevent the interior of the spray gun from being blocked, and the interior of the spray gun can be cleaned.

Furthermore, the air pipe is also provided with a switch valve and a flow regulating valve. The switch valve controls the gas to flow, and the flow regulating valve controls the flow of the gas to flow, so as to further control the spraying speed of the spray gun.

Further, the bottom of feed bin is provided with down the hopper, and the top of hopper is connected fixedly with the bottom of feed bin down, and the bottom and the elephant trunk of hopper are connected down, and the hopper is hopper-shaped with the elephant trunk junction down. The feed bin stores the patching material, and when the unloading is needed, the patching material put down from the feed bin flows into the chute after entering the blanking hopper, and the bottom of the feed bin is arranged to be funnel-shaped, so that the patching material is prevented from being clamped.

Furthermore, two sides of the bottom of the storage bin are provided with two bottom plates which are connected in a rotating mode, the rotating shaft is driven by a motor, and the two bottom plates jointly form the bottom of the storage bin. The motor controls the two bottom plates to realize automatic control, when the materials are required to be discharged, the two bottom plates rotate to be in a vertical opening state, after the materials to be repaired are completely discharged, the bottom plates are controlled to rotate to be in a parallel connection state, and the repairing materials of the next furnace are stored in the storage bin.

The beneficial effects of the utility model are as follows: the spray gun is arranged and is matched with the communicating vessel to be connected with the gas storage tank and the material bin, so that the repairing material is sprayed out, the blanking speed is accelerated by using gas, the automatic addition of the repairing material is realized, and the manual labor intensity is reduced; the hopper under the feed bin below sets up, stores a certain amount of patching material back in the feed bin, can directly flow the lower hopper of below during the repair furnace, and the strict control adds the material volume to can realize reinforced fast, further reduce repair time, do not influence normal production, do not disturb the production rhythm in disorder.

Drawings

FIG. 1 is a schematic structural view of a preferred embodiment of a steel tapping surface maintenance device for continuous production of a converter provided by the utility model;

fig. 2 is a schematic view of the mechanism of the spray gun in the preferred embodiment.

Wherein: 1. a gas storage tank; 2. a storage bin; 3. feeding a hopper; 4. a communicating vessel; 5. a spray gun; 6. a converter; 11. an on-off valve; 12. a flow regulating valve; 13. an air tube; 21. a chute; 51. a cooling water outlet pipe; 52. a cooling water inlet pipe; 53. a mixing channel.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly apparent, the following detailed description of the technical solutions of the present invention with reference to the accompanying drawings is to be construed as merely illustrative and not restrictive of the technical solutions of the present invention, and it should be understood that variations and modifications thereof by those skilled in the art without inventive faculty are within the scope of the present invention.

The utility model provides a device is maintained to tapping face of converter uninterrupted production, includes spray gun 5, spray gun 5 slope sets up, and inclination can adjust according to discharge speed, and its contained angle with vertical direction is 45 at most, the inside cavity of spray gun 5, the inside central point of spray gun 5 is mixing channel 53, is provided with cooling water inlet channel 52 in mixing channel 53 both sides, is provided with cooling water outlet pipe 51 in the outside of cooling water inlet channel 52, and mixing channel 53 is used as the passageway of spray gun blowout material, and cooling water inlet channel 52 sets up in mixing channel 53 both sides, can cool mixing channel 53, and direct and mixing channel 53 contact, can promote the cooling effect, and simultaneously, the below of spray gun 5 is provided with converter 6, and the muzzle of spray gun 5 aims at the fire door of converter 6.

The tail end of spray gun 5 is connected with linker 4, and spray gun 5 is connected to the one end of linker 4, and the other end divide into two interfaces, and one of them interface passes through trachea 13 and connects gas holder 1, and another interface passes through elephant trunk 21 and connects feed bin 2, trachea 13 and elephant trunk 21 are linked together through linker 4 and spray gun 5's mixing passage 53, transmit the repair material in gas holder 1 and the feed bin 2 to mixing passage 53 jointly.

Furthermore, three interfaces at two ends of the communicating vessel 4 are connected with the spray gun 5, the air pipe 13 and the chute 21 at two ends by flanges, so that the connection and the disassembly are convenient and the connection stability is ensured.

Further, the pressure in the gas storage tank 1 is 0.8-1.6 MPa. High-pressure gas is stored in the gas storage tank 1, a switch valve 11 and a flow regulating valve 12 are further arranged on the gas pipe 13 to regulate the flow and communication of the gas, the high-pressure gas and the repair material are mixed to spray the repair material into the converter 6 at a high speed, the spray gun 5 is obliquely arranged to spray the repair material on the side wall of the converter 6, and the spraying gas is matched to accelerate the blanking speed of the repair material.

Further, the bottom of feed bin 2 is provided with down hopper 3, and the top of hopper 3 is connected fixedly with the bottom of feed bin 2 down, and the bottom and the elephant trunk 21 of hopper 3 are connected down, and hopper 3 is hourglass hopper-shaped with the elephant trunk 21 junction down, the bottom both sides of feed bin 2 are provided with two bottom plates of rotatable coupling, and the rotation axis uses motor drive, and two bottom plates constitute the bottom of feed bin 2 jointly. The storage bin 2 stores the repair materials, a certain amount of repair materials are stored in the storage bin 2, when blanking is needed, the two bottom plates are controlled to rotate to be in a vertical opening state, the repair materials put down from the storage bin enter the blanking hopper 3, then the bottom plates are controlled to rotate to be in a parallel connection state, and the storage bin starts to store the repair materials again; after the repair material flows into the feed opening 3, the bottom is arranged to be funnel-shaped, so that the repair material can conveniently enter the chute 21 from the bottom, and meanwhile, the repair material can be prevented from being clamped.

The use principle of the utility model is as follows: after the converter 6 finishes discharging steel, leaving partial slag, then controlling the storage bin 2 to open for blanking, simultaneously controlling the switch valve 11 of the air pipe 13 and the flow regulating valve 12 to regulate the flow of gas, spraying a certain amount of repairing material into the high-temperature furnace which has just finished discharging steel under the driving of high-pressure gas, simultaneously shaking the converter to an angle of about 60 degrees on the steel discharging surface to ensure that the repairing material added into the furnace is boiled in the high-temperature slag for at least 5 minutes, after the steel discharging surface of the converter is completely covered and reacted, then starting to lift the furnace to splash slag, and carrying out normal production after the process is finished.

This scheme uses the spray gun to replace the whole package of traditional fork truck reinforced, utilizes gaseous simultaneously will repair the material to spout into the converter fast in, increases and repairs reinforced speed, and uses automatic material conveying device, reduces workman intensity of labour, simultaneously, sets up feed bin and lower hopper, carries out the strict control to the reinforced volume of repairing the material, and whole flow consumes the time weak point, does not influence production.

Claims (8)

1. The utility model provides a device is maintained to tapping face of incessant production of converter, includes spray gun (5), its characterized in that, spray gun (5) slope sets up, the inside cavity of spray gun (5), and the trailing end connection of spray gun (5) has linker (4), and spray gun (5) are connected to the one end of linker (4), and the other end divide into two interfaces, and one of them interface passes through trachea (13) and connects gas holder (1), and feed bin (2) are connected through elephant trunk (21) to another interface.

2. A tapping surface maintenance device for the uninterrupted production of a converter according to claim 1, characterized in that the lance (5) has a mixing channel (53) in its central position, that cooling water inlet pipes (52) are arranged on both sides of the mixing channel (53), and that cooling water outlet pipes (51) are arranged on the outside of the cooling water inlet pipes (52).

3. A tapping face maintenance device for the uninterrupted production of a converter according to claim 2, characterized in that the gas pipe (13) and the chute (21) are in communication with the mixing channel (53) of the lance (5) through a communicating vessel (4).

4. A tapping surface maintenance device for the uninterrupted production of a converter according to claim 1, characterized in that three joints at both ends of the communicating vessel (4) are connected with the spray gun (5), the air pipe (13) and the chute (21) at both ends by flanges.

5. The steel tapping surface maintenance device for the uninterrupted production of the converter according to claim 1, wherein the pressure in the gas storage tank (1) is 0.8-1.6 MPa.

6. Tapping surface maintenance device for the uninterrupted production of a converter according to claim 1, characterized in that said gas pipe (13) is further provided with a switch valve (11) and a flow control valve (12).

7. The steel tapping surface maintenance device for the uninterrupted production of the converter according to claim 1, wherein a blanking hopper (3) is arranged at the bottom of the storage bin (2), the top of the blanking hopper (3) is fixedly connected with the bottom of the storage bin (2), the bottom of the blanking hopper (3) is connected with the chute (21), and the joint of the blanking hopper (3) and the chute (21) is funnel-shaped.

8. The tapping surface maintenance device for the uninterrupted production of the converter according to claim 7, characterized in that two bottom plates are rotatably connected to two sides of the bottom of the storage bin (2), the rotating shaft is driven by a motor, and the two bottom plates jointly form the bottom of the storage bin (2).

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