KR stirring paddle feed opening sealing device

Abstract

A KR stirring paddle feed opening sealing device comprises a first split body fixedly arranged on a smoke hood, the top of the first split body is connected with a second split body, the first split body is communicated with the second split body, a sealing cover plate capable of ascending and descending is arranged in the second split body, and when the sealing cover plate moves downwards to a preset position, the sealing cover plate can lift up and down. The side wall of the sealing cover plate is tightly attached to the inclined inner side wall of the second split body, and the sealing effect is achieved. According to the utility model, the powder dust overflow condition in the production process can be effectively reduced, and meanwhile, the risk of scalding during operation in the same area is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of steel smelting technology, in particular to a KR stirring paddle discharge port sealing device. BACKGROUND

[0002] KR stirring mainly is through the rotation of stirring paddle to handle the sulfur, phosphorus and other impurities in molten iron in the steel smelting process, and in the discharging and stirring process, the discharge port is usually set in an integral straight cylinder style, and since there is a gap between the side wall of the straight cylinder discharge port and the side wall of the sealing cover plate, the powder overflow and dust emission are serious during discharging, which affects the environment of the whole KR area and easily burns the maintenance personnel in the same area. SUMMARY

[0003] In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the utility model is to provide a KR stirring paddle discharge port sealing device, which can effectively reduce the powder dust overflow during production and reduce the risk of burns during operation in the same area.

[0004] The utility model provides a KR stirring paddle discharge port sealing device, which comprises a first part fixed on a smoke hood, a second part connected to the top of the first part, a communication between the first part and the second part, a sealing cover plate arranged in the second part and capable of being lifted, and a side wall of the sealing cover plate closely combined with an inner side wall of the second part when the sealing cover plate is moved downward to a predetermined position, thereby achieving a sealing effect.

[0005] Preferably, the first part and the second part are detachably connected.

[0006] Preferably, the first part is in the shape of a tapered cylinder.

[0007] Preferably, the second part is in the shape of a straight cylinder.

[0008] Preferably, a through hole is formed in the sealing cover plate for the stirring paddle to pass through.

[0009] Preferably, a hanging chain is connected to the sealing cover plate, and the hanging chain is connected to a hoisting device.

[0010] Preferably, a gas seal ring is arranged at the through hole of the sealing cover plate, the gas seal ring is coaxial with the through hole, and the stirring paddle passes through the gas seal ring and the through hole in sequence.

[0011] As described above, the KR stirring paddle discharge port sealing device has the following beneficial effects:

[0012] The utility model discloses a split type setting, and the second split body is internally provided with an inclined inner side wall, when the sealing cover plate is moved to the predetermined position under the action of the hoisting equipment, the side wall of the sealing cover plate is tightly attached to the inclined inner side wall of the second split body, and the sealing effect is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 A front view of a KR stirring paddle discharge port sealing device is provided for an embodiment of the utility model.

[0014] Figure 2 A sectional view. Figure 1

[0015] Figure 3 A top view of a KR stirring paddle discharge port sealing device is provided for an embodiment of the utility model.

[0016] BRIEF DESCRIPTION OF DRAWINGS

[0017] 100, first split body;200, second split body;300, sealing cover plate;310, through hole;400, hanging chain;500, air seal ring. DETAILED DESCRIPTION

[0018] The following specific embodiments illustrate the embodiments of the utility model, and those skilled in the art can easily understand other advantages and effects of the utility model from the disclosed content of the specification.

[0019] It should be understood that the structure, proportion, size and the like shown in the drawings attached to the specification are only used to cooperate with the disclosed content of the specification for understanding and reading by those skilled in the art, and are not used to limit the limiting conditions of the utility model that can be implemented, so they do not have technical substantive significance, any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects that can be produced by the utility model and the purposes that can be achieved, should still fall within the scope covered by the disclosed technical content of the utility model. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and the like cited in the specification are only for the convenience of clear understanding of the description, and are not used to limit the scope of the utility model that can be implemented, the change or adjustment of relative relationship, without substantially changing the technical content, is also regarded as the scope of the utility model that can be implemented.

[0020] For example, Figure 1 ​As shown, an embodiment of a KR stirring paddle discharge port sealing device includes a first part 100 fixed on a hood, a second part 200 connected to the top of the first part 100, the first part 100 and the second part 200 being in communication, a seal cover plate 300 being provided in the second part 200 and being liftable, the inner side wall of the second part 200 being provided in an inclined manner, the side wall of the seal cover plate 300 also being provided in an inclined manner, and the inclination of the side wall of the seal cover plate 300 being the same as that of the inner side wall of the second part 200. A hanging chain 400 is connected to the seal cover plate 300, and the hanging chain 400 is connected to hoisting equipment, so that the hoisting equipment drives the seal cover plate 300 to move up and down through the hanging chain 400. When the seal cover plate 300 moves down to a predetermined position, the side wall of the seal cover plate 300 is tightly attached to the inclined inner side wall of the second part 200, so as to achieve a sealing effect, which can effectively reduce the overflow of powder dust in the production process and reduce the risk of scalding in the same area operation. A through hole 310 is provided in the seal cover plate 300, so that the stirring paddle can pass through.

[0021] In an embodiment, the first part 100 and the second part 200 are detachably connected, which includes but is not limited to threaded connection, so as to facilitate installation and subsequent maintenance. The first part 100 is provided in a conical cylinder shape, so as to facilitate the attachment of the seal cover plate 300 to the first part 100; and the second part 200 is provided in a straight cylinder shape, so as to facilitate the fixed connection with the hood.

[0022] In an embodiment, the seal cover plate 300 is connected to the hanging chain 400 at the top, the hanging chain 400 is connected to hoisting equipment, and the hoisting equipment drives the hanging chain 400 to rise or fall, thereby driving the seal cover plate 300 to rise or fall. When the hoisting equipment drives the seal cover plate 300 to fall through the hanging chain 400, the side wall of the seal cover plate 300 is tightly attached to the inner side wall of the second part 200, so as to achieve a sealing effect.

[0023] In an embodiment, a gas seal ring 500 is provided at the through hole 310 of the seal cover plate, the gas seal ring 500 is coaxial with the through hole 310, and the stirring paddle can pass through the gas seal ring 500 and the through hole 310 in sequence. When the stirring paddle rotates, under the action of the gas seal ring 500, the overflow of powder can be prevented, and environmental pollution and material loss can be avoided.

[0024] In summary, the utility model is provided with a split type structure, the second part is provided with an inclined inner side wall, and when the seal cover plate is moved to a predetermined position under the action of the hoisting equipment, the side wall of the seal cover plate is tightly attached to the inclined inner side wall of the second part, so as to achieve a sealing effect. The utility model can effectively reduce the overflow of powder dust in the production process and reduce the risk of scalding in the same area operation.

[0025] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the present application should be covered by the claims of the present application.

Claims

1. A KR impeller discharge seal apparatus, characterized by, The utility model relates to a smoke hood, which comprises a first part (100) fixed on the smoke hood, a second part (200) connected to the top of the first part (100), a communication between the first part (100) and the second part (200), a sealable cover plate (300) arranged in the second part (200) and capable of lifting, and a side wall of the cover plate (300) closely combined with an inner side wall of the second part (200) when the cover plate (300) moves downward to a predetermined position, thereby achieving a sealing effect.

2. The KR impeller boot seal apparatus of claim 1, wherein, The first part (100) and the second part (200) are detachably connected.

3. The KR impeller boot seal apparatus of claim 2, wherein, The first part (100) is in the shape of a tapered cylinder.

4. The KR impeller boot seal apparatus of claim 3, wherein, The second part (200) is in the shape of a straight cylinder.

5. The KR paddle boot seal apparatus of any of claims 1-4, wherein, A through hole (310) is formed in the cover plate (300) for the stirring paddle to pass through.

6. The KR paddle boot seal apparatus of any of claims 1-4, wherein, A hanging chain (400) is connected to the cover plate (300), and the hanging chain (400) is connected to hoisting equipment.

7. The KR impeller boot seal apparatus of claim 5, wherein, An air seal ring (500) is arranged at the through hole (310) of the cover plate (300), the air seal ring (500) is coaxial with the through hole (310), and the stirring paddle passes through the air seal ring (500) and the through hole (310) in sequence.

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