CN216808895U

CN216808895U - Dust hood for converter oxygen lance mouth water jacket

Info

Publication number: CN216808895U
Application number: CN202220229116.2U
Authority: CN
Inventors: 王文龙; 魏鹏; 杨振宇
Original assignee: Rizhao Steel Holding Group Co Ltd
Current assignee: Rizhao Steel Holding Group Co Ltd
Priority date: 2022-01-27
Filing date: 2022-01-27
Publication date: 2022-06-24
Anticipated expiration: 2032-01-27

Abstract

The utility model discloses a dust hood for a water jacket at an oxygen lance port of a converter, which belongs to the field of converter smelting and comprises an oxygen lance port dust hood, a protective net, a trolley channel, an oxygen lance port dust removal pipeline and a dust removal suction device; the trolley passage is arranged on the converter platform, a slide way is arranged in the trolley passage, an oxygen lance trolley is arranged in the trolley passage, the oxygen lance trolley is connected with the slide way in the trolley passage in a sliding way, and the oxygen lance trolley is used for fixing an oxygen lance; the side wall of the passage of the trolley is provided with an oxygen lance port dust hood, the pipeline of the oxygen lance port dust hood is connected with the oxygen lance port dust hood, the other end of the pipeline of the oxygen lance port dust hood is connected with a dust removal suction device, and a layer of protective net is arranged between the oxygen lance port dust hood and the pipeline of the oxygen lance port dust hood. Compared with the prior art have safe and reliable's characteristics.

Description

Dust hood for converter oxygen lance mouth water jacket

Technical Field

The utility model relates to a converter smelting auxiliary device, in particular to a dust hood for a converter oxygen lance mouth water jacket.

Background

The oxygen lance is the core equipment in the smelting process of the converter, and when the oxygen lance is lowered to a proper position of the liquid level of the converter, oxygen is sprayed to the liquid level for stirring reaction, and the temperature of molten steel is raised and impurities are purified and removed through adjusting auxiliary materials. In the converter blowing process, a large amount of oxygen is stirred and reacted with molten iron, scrap steel and auxiliary materials in the converter with high strength to form a large amount of high-temperature flue gas, and the oxygen lance opening nitrogen sealing device is a fire and smoke sealing device at the oxygen lance opening of the converter, so that open fire and smoke can be effectively prevented from overflowing, and the oxygen lance can be normally lifted and placed down.

However, in the production process of the converter at present, a large amount of high-temperature flue gas generated by oxygen lance blowing is only sealed by a nitrogen sealing device, and a dust removal trapping device is not provided. And when the oxygen lance is in the process of lifting the lance, steel slag adhered to the body of the oxygen lance can fall off, part of the steel slag can enter the air chamber of the nitrogen seal seat from the circumferential seam of the nitrogen seal seat, and simultaneously, the blown and splashed steel slag can also enter the air chamber of the nitrogen seal seat from the circumferential seam of the nitrogen seal seat when the lower lance is not in positive nitrogen seal seat and the nitrogen seal plug are deflected. The long-pending sediment of air chamber can influence nitrogen sealing effect with the whole jam of nitrogen sealing seat even when too much in the nitrogen sealing seat, causes phenomenons such as fire and smoke, influences operational environment, and can follow the high factory building that strides that the smoke and dust that spills over from nitrogen sealing device directly emits out the roof, causes the environmental protection accident.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides a dust hood for a water jacket of an oxygen lance hole of a converter, which can prevent smoke dust from directly emerging out of a roof from a high-span factory building to cause environmental protection accidents by collecting the smoke dust overflowing from a nitrogen sealing device.

The technical scheme for solving the technical problem is as follows: a dust hood for a water jacket of an oxygen lance mouth of a converter is characterized in that: comprises an oxygen lance port dust hood, a protective net, a trolley passage, an oxygen lance port dust removal pipeline and a dust removal suction device; the trolley passage is arranged on the converter platform, a slideway is arranged in the trolley passage, an oxygen lance trolley is arranged in the trolley passage, the oxygen lance trolley is connected with the slideway in the trolley passage in a sliding way, and the oxygen lance trolley is used for fixing an oxygen lance; the side wall of the trolley passage is provided with an oxygen lance port dust hood, an oxygen lance port dust removal pipeline is connected with the oxygen lance port dust hood, the other end of the oxygen lance port dust removal pipeline is connected with a dust removal suction device, and a layer of protective net is arranged between the oxygen lance port dust hood and the oxygen lance port dust removal pipeline.

Furthermore, the oxygen lance trolley is provided with two oxygen lance trolleys.

Further, the slide way comprises a lifting slide way and a gun-backing transverse slide way which are communicated with each other.

Furthermore, the lifting slide way is communicated with the gun reversing transverse slide way to form a T shape.

Furthermore, the oxygen lance port dust hood and the inverted lance transverse slideway are on different planes,

furthermore, the sliding connection adopts a wheel-wrapped rail structure.

Further, the dust removal suction device is a converter secondary dust removal device.

Furthermore, the oxygen lance hole dust removal pipeline is provided with a manhole.

Compared with the prior art, the device can collect smoke dust overflowing from the nitrogen sealing device, and avoids environmental protection accidents caused by the fact that the smoke dust directly overflows out of a roof from a high-span factory building.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Detailed Description

The utility model is further described with reference to the drawings and the detailed description. In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the claimed embodiments. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the following embodiments, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present application can be understood by those skilled in the art according to specific situations.

It is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," "end," "side," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the claimed embodiments and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the claimed embodiments.

As shown in figure 1, the utility model comprises an oxygen lance hole dust hood 2, a protective screen 3, a trolley passage 4, an oxygen lance hole dust removal pipeline 5 and a dust removal suction device.

The trolley passage 4 is arranged on a platform 1 with 23 m of the converter, namely, is positioned on the same layer of platform with the oxygen lance nitrogen sealing device.

The trolley passage 4 is internally provided with a slide way, the slide way comprises a lifting slide way and a gun-falling transverse slide way which are communicated with each other, and the lifting slide way and the gun-falling transverse slide way are communicated to form a T shape in the embodiment.

The oxygen lance trolley is arranged in the trolley passage 4, the oxygen lance trolley is in sliding connection with a slide way in the trolley passage 4, the sliding connection adopts a wheel-rail-wrapping structure, namely, the slide way rail is embedded in a trolley wheel sliding groove.

The oxygen lance trolley is used for fixing the oxygen lance. One converter is provided with two oxygen guns, the two oxygen guns have different purposes, one oxygen gun is used for blowing, and the other oxygen gun is used for splashing slag, so the guns need to be turned back and forth in the production process. Therefore, the oxygen lance trolley is provided with two oxygen lance trolleys, the oxygen lance trolley in the using process enters the lifting slideway to do lifting movement, and the standby oxygen lance trolley enters the gun-reversing transverse slideway to be standby.

4 lateral walls of dolly passageway on have oxygen muzzle dust excluding hood 2, because the oxygen rifle needs to come back the rifle, the oxygen rifle body of rifle of falling the in-process glues the sediment and can drop and smash bad with oxygen muzzle dust excluding hood 2, oxygen muzzle dust excluding hood 2 sets up at oxygen rifle route of falling of oxygen rifle mouth water jacket both sides simultaneously, then can influence oxygen muzzle water jacket maintenance and scarfing cinder work, consequently oxygen muzzle dust excluding hood 2 and the horizontal slide of falling the rifle are in different planes, in the concrete implementation, the horizontal slide of falling the rifle is located east and west two directions, and oxygen rifle mouth dust excluding hood 2 is located the north side.

In the embodiment, the size of the oxygen lance port dust hood 2 is 1000 multiplied by 1000 mm.

The oxygen lance port dust removal pipeline 5 is connected with the oxygen lance port dust removal cover 2 through a pipeline, and the other end of the oxygen lance port dust removal pipeline is connected with a dust removal suction device. The dust removal suction device in the embodiment is a converter secondary dust removal device, and a new power source is not required to be added by utilizing the existing equipment. The diameter of the oxygen lance port dust removal pipeline 5 is DN1000 mm. The oxygen lance hole dust removal pipeline 5 is provided with a DN450mm manhole 6, and when the accumulated slag of the oxygen lance hole dust removal cover 2 is more, manual cleaning is convenient.

The utility model discloses an oxygen rifle mouth dust excluding hood 2, oxygen rifle mouth dust removal pipeline 5 between set up one deck protection network 3, the effect has two, prevents that debris such as sublance probe paper shell from inhaling oxygen rifle mouth dust removal pipeline 5, causes the dust removal pipeline to block up, prevents that the bold sediment that the oxygen rifle body dropped from destroying the dust excluding hood.

It should be noted that the present embodiment is not described in detail, and is a technique known in the art.

While specific embodiments of the utility model have been described above for purposes of illustration, it will be apparent to those skilled in the art that various obvious changes can be made without departing from the spirit and scope of the utility model.

Claims

1. A dust hood for a water jacket of an oxygen lance mouth of a converter is characterized in that: comprises an oxygen lance port dust hood, a protective net, a trolley passage, an oxygen lance port dust removal pipeline and a dust removal suction device; the trolley passage is arranged on the converter platform, a slideway is arranged in the trolley passage, an oxygen lance trolley is arranged in the trolley passage, the oxygen lance trolley is connected with the slideway in the trolley passage in a sliding way, and the oxygen lance trolley is used for fixing an oxygen lance; the side wall of the passage of the trolley is provided with an oxygen lance port dust hood, the oxygen lance port dust hood dust pipe is connected with the oxygen lance port dust hood, the other end of the oxygen lance port dust hood dust pipe is connected with a dust removal suction device, and a layer of protective net is arranged between the oxygen lance port dust hood dust pipe and the oxygen lance port dust pipe.

2. The dust hood for the water jacket of the oxygen lance mouth of the converter according to claim 1, characterized in that: the oxygen lance trolley is provided with two oxygen lance trolleys.

3. The dust hood for the water jacket of the oxygen lance mouth of the converter according to claim 2, characterized in that: the slide comprises a lifting slide and a gun-backing transverse slide which are communicated with each other.

4. The dust hood for the water jacket of the oxygen lance mouth of the converter according to claim 3, characterized in that: the lifting slide way is communicated with the gun-backing transverse slide way to form a T shape.

5. The dust hood for the water jacket of the oxygen lance mouth of the converter according to claim 3, characterized in that: the oxygen lance port dust hood and the inverted lance transverse slideway are on different planes.

6. The dust hood for the water jacket of the oxygen lance mouth of the converter according to claim 1, characterized in that: the sliding connection adopts a wheel-wrapped rail structure.

7. The dust hood for the water jacket of the oxygen lance mouth of the converter according to claim 1, characterized in that: the dust removal suction device is a converter secondary dust removal device.

8. The dust hood for the water jacket of the oxygen lance mouth of the converter according to claim 1, characterized in that: the oxygen lance hole dust removal pipeline is provided with a manhole.