KR20100127501A - Rotating apparatus for improving the performance of spray coating on furnace wall of refining furnice - Google Patents

Rotating apparatus for improving the performance of spray coating on furnace wall of refining furnice Download PDF

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Publication number
KR20100127501A
KR20100127501A KR1020090045974A KR20090045974A KR20100127501A KR 20100127501 A KR20100127501 A KR 20100127501A KR 1020090045974 A KR1020090045974 A KR 1020090045974A KR 20090045974 A KR20090045974 A KR 20090045974A KR 20100127501 A KR20100127501 A KR 20100127501A
Authority
KR
South Korea
Prior art keywords
furnace
pinion gear
refining
furnace body
spray coating
Prior art date
Application number
KR1020090045974A
Other languages
Korean (ko)
Inventor
류재왕
Original Assignee
주식회사 포스코
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 포스코 filed Critical 주식회사 포스코
Priority to KR1020090045974A priority Critical patent/KR20100127501A/en
Publication of KR20100127501A publication Critical patent/KR20100127501A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
    • F27B7/22—Rotary drums; Supports therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
    • F27B7/26—Drives
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
    • F27B7/26—Drives
    • F27B2007/268—Details of the motor or the pinions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D2099/0083—Drives; Auxiliary drives

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)

Abstract

PURPOSE: A furnace body rotating device for improving the spray coating performance of a smelting furnace is provided to extend the service life of a smelting furnace body by uniformly coating melting damage parts. CONSTITUTION: A furnace body rotating device for improving the spray coating performance of a smelting furnace is composed of a pinion gear(110), a rotating gear(120) for a furnace body, and a drive motor(100). The pinion gear is installed in a trunnion(30). The trunnion is formed in the circumference of the furnace body of a smelting furnace. The rotating gear is formed in one side of the pinion gear and is rotated with the pinion gear. The drive motor is coupled to the top of the pinion gear and supplies power to the pinion gear.

Description

ROTATING APPARATUS FOR IMPROVING THE PERFORMANCE OF SPRAY COATING ON FURNACE WALL OF REFINING FURNICE}

The present invention relates to a furnace rotation apparatus for improving the furnace wall spray coating performance of a refinery furnace, and more particularly, to prevent the loss of refractory loss by coating the spray solution evenly sprayed on the furnace wall during spray coating operation on the furnace wall surface of the furnace. The present invention relates to a furnace body rotating device for extending the furnace life.

The refinery is charged with melting molten metal from the electric furnace to remove a series of impurities, producing clean and refined steel, adjusting the appropriate temperature and composition, and then sending it to the post process.

1 is a perspective view showing the structure of a conventional refining furnace, as shown in FIG. 1, generally, the structure of the refining furnace 20 is symmetrically configured in a jar shape, the outside of which is made of steel, and the inside thereof It is made of refractory to withstand high temperature molten steel. In addition, it is basically composed of a tuyere (40) installed in the transverse direction of the bath in order to blow to the top lance and low carbon station as a facility for burning carbon in the high carbon. The purpose of the refining furnace is to burn the impurities contained in the molten steel and perform the refining. A series of refining operations are called refining. In the process of decarburization and dewatering by the refining operation, erosion of the refining furnace is eroded. Is generated and the refining furnace must be replaced according to the erosion degree of such refractory.

Figure 2 is a schematic diagram showing the spray coating operation inside the furnace wall of a conventional refining furnace, as shown in Figure 2, in order to extend the life of the refining furnace to be replaced due to refractory erosion, to protect the refractory inside the refining furnace In order to prevent the melting of these refractory materials, the spray coating 50 is sprayed on the furnace wall. The coating operation is sprayed while the operator secures the view and tilts the furnace body up or down while tilting the refinery furnace 90 degrees, and the operator can see only the upper and lower walls of the furnace furnace body, so that both sides of the furnace body Since it is impossible to secure a visual field, there is a problem in that even coating is not performed on the entire wall of the furnace body. Therefore, in the conventional method, the refractory coating layer becomes nonuniform, making it difficult to prevent melting of the refractory material, so that the life of the furnace body is not prolonged significantly.

An object of the present invention is to allow the operator to see the whole of the furnace wall when spray coating on the furnace wall of the refining furnace so that the coating spray liquid is evenly sprayed on the furnace wall to extend the furnace life.

In order to achieve the above object, the present invention provides a pinion gear installed on a trunnion formed around a furnace body of a refining furnace, a body rotating gear which is formed on one side of the pinion gear and meshes with the pinion gear to rotate in engagement with the pinion gear. Provided is a furnace body rotating apparatus for improving the furnace wall spray coating performance of the refining furnace consisting of a drive motor coupled to the upper portion of the gear to transfer power to the pinion gear.

At this time, it is also characterized in that it further comprises a bearing fixed to the inner surface of the trunnion so that the pinion gear is rotatable.

By the above configuration, the operator can rotate the furnace body to perform coating work, thereby securing a view that can evenly view the entire furnace body wall surface, enabling even coating of the refractory dissolving portion, thereby improving coating performance, and thus refining furnace. It can contribute to cost reduction and productivity improvement by extending the service life of the furnace.

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration of the furnace body rotating apparatus for improving the furnace wall spray coating performance of the present invention.

3 is a perspective view of a refining furnace equipped with a furnace body rotating device of the present invention, FIG. 4 is a plan view of a refining furnace equipped with a furnace body rotating device of the present invention, and FIG. 5 is a side view of a refining furnace equipped with a furnace body rotating device of the present invention. 6 is a schematic view showing a coating operation of a refining furnace equipped with a furnace body rotating apparatus of the present invention.

3 and 4, the furnace body rotating device for improving the furnace spray coating performance of the refinery of the present invention drives the furnace body rotating gear 120 to the trunnion 30 formed around the furnace body of the furnace. Pinion gear 110 is installed to make.

The pinion gear 110 on one side of the pinion gear (110) is formed on the side of the pinion gear (110), the gear is engaged with the pinion gear (110) to rotate while the refinery is rotated 360 degrees in the lateral direction. It becomes possible. Therefore, the operator can rotate the refining furnace while rotating the refining furnace at 90 degrees, and thus spray coating of the refractory material is possible while securing visibility to both sides as well as the upper and lower parts of the furnace body.

In addition, a drive motor 100 is coupled to the upper portion of the pinion gear 110 to transmit and rotate a driving force to the pinion gear 110. Here, the drive motor 100 may be an electric motor or a hydraulic motor.

At this time, as shown in Figure 5, the inner surface of the trunnion 30 is fixed to the bearing 130, the bearing 130 is the pinion gear 110 so that the pinion gear 110 is rotatable Support.

Hereinafter, the operation of the present invention will be described in detail.

As shown in FIG. 6, when the refractory in the refining furnace is damaged, the operator gives a driving signal to the driving motor 100, and the driving motor 100 receiving the signal transmits a driving force to the pinion gear 110. By transmitting the pinion gear 110 to rotate, the pinion gear 110 and the body rotation gear 120 coupled to the pinion gear 110 is rotated in engagement with the pinion gear 110, the refining furnace also 360 degrees in the lateral direction Rotation is possible. In this way, since the furnace body of the refining furnace can be rotated 360 degrees during the spray coating of the refractory, the operator can see the entire inside of the furnace body, giving a drive signal to the drive motor to rotate the refining furnace while rotating the refractories on the wall of the furnace body. By finding the site, the sprayed liquid 60 may be concentrated on the melted refractory site.

Therefore, the erosion of the refractory is prevented due to the improvement of the coating performance, thereby greatly extending the life of the refining furnace.

1 is a perspective view showing the structure of a conventional refining furnace

Figure 2 is a schematic diagram showing a spray coating operation inside the furnace wall of a conventional refining furnace

Figure 3 is a perspective view of the refining furnace equipped with a furnace body rotating apparatus of the present invention

Figure 4 is a plan view of the refining furnace equipped with a furnace body rotating apparatus of the present invention

Figure 5 is a side view of the refining furnace equipped with a furnace body rotating apparatus of the present invention

Figure 6 is a schematic diagram showing the coating operation of the refining furnace equipped with the furnace body rotating apparatus of the present invention

* Explanation of the major symbols in the drawings *

20: refining furnace

30: Tranion

40: tuyere

50: spray pipe

60: injection liquid

100: drive motor

110: pinion gear

120: gear for rotating the body

130: bearing

Claims (2)

A pinion gear installed on a trunnion formed around a furnace body of a refinery furnace, a furnace body rotating gear formed on one side of the pinion gear and gear-engaged with the pinion gear to rotate, and coupled with an upper portion of the pinion gear; Furnace Rotator to Improve Furnace Wall Spray Coating Performance of Refinery Furnace The method of claim 1, And a bearing fixed to an inner surface of the trunnion to support the pinion gear so as to be rotatable.
KR1020090045974A 2009-05-26 2009-05-26 Rotating apparatus for improving the performance of spray coating on furnace wall of refining furnice KR20100127501A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020090045974A KR20100127501A (en) 2009-05-26 2009-05-26 Rotating apparatus for improving the performance of spray coating on furnace wall of refining furnice

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020090045974A KR20100127501A (en) 2009-05-26 2009-05-26 Rotating apparatus for improving the performance of spray coating on furnace wall of refining furnice

Publications (1)

Publication Number Publication Date
KR20100127501A true KR20100127501A (en) 2010-12-06

Family

ID=43504718

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020090045974A KR20100127501A (en) 2009-05-26 2009-05-26 Rotating apparatus for improving the performance of spray coating on furnace wall of refining furnice

Country Status (1)

Country Link
KR (1) KR20100127501A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200488523Y1 (en) * 2018-08-25 2019-02-14 신용성 Rotating apparatus for improving the performance

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200488523Y1 (en) * 2018-08-25 2019-02-14 신용성 Rotating apparatus for improving the performance

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E601 Decision to refuse application