CN215560053U

CN215560053U - Sealing device for small furnace end of coke oven

Info

Publication number: CN215560053U
Application number: CN202120200205.XU
Authority: CN
Inventors: 马卫华; 白向国; 张伟; 赵永功; 徐鹏
Original assignee: Shanxi Taigang Stainless Steel Co Ltd
Current assignee: Shanxi Taigang Stainless Steel Co Ltd
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2022-01-18
Anticipated expiration: 2031-01-25

Abstract

The utility model relates to the field of coal coking process. The sealing device for the small coke oven head comprises a sealing element and a fixing element, wherein the sealing element is arranged outside the small coke oven head and used for sealing the surface of a brickwork of the small coke oven head, and the fixing element is fixed at the top of a coke oven door frame through a T-shaped bolt. The utility model has simple installation, short operation time and low labor intensity of operators.

Description

Sealing device for small furnace end of coke oven

Technical Field

The utility model relates to the field of coal coking process.

Background

The coke oven of 7.63m is designed by the company uhde of Germany, and has the advantages of complex structure, advanced process and high automation degree. With the increase of the furnace life of the coke oven, the phenomena of leakage and smoke leakage often occur at the small furnace head parts at the two sides of the coke oven, and the environment-friendly production of the coke oven is influenced. The main reason is that the sealing material at the small furnace end part falls off, resulting in poor sealing. The original design of the small furnace head part is a structural form that a fixing clip is fixed on the top of a furnace door frame through wire planting, a ceramic fiber blanket is lined, then a refractory castable is used for pouring, and finally a double-layer steel clip is used for pressing (shown in attached figure 4). Because the sealing mode of the originally designed small furnace head is complex in structure, along with the production and operation of the coke oven, the refractory castable is loosened, the fixed cutting wire is broken in the threaded hole at the top of the large furnace door frame, and the sealing effect of the small furnace head is lost. The factory adopts a method of building the part by using refractory bricks for sealing, but the single maintenance operation time is long, the sealing aging is short, and the danger that the refractory bricks fall off due to the alternating action of cold and heat exists. With the increasing pressure of the environmental protection production of the coke oven, a new method has to be developed, and a better sealing method for the small oven end is sought.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and provides a sealing device for a small furnace end of a coke oven.

The purpose of the utility model is realized as follows: the sealing device for the small coke oven head comprises a sealing element and a fixing element, wherein the sealing element is arranged outside the small coke oven head and used for sealing the surface of a brickwork of the small coke oven head, and the fixing element is fixed at the top of a coke oven door frame through a T-shaped bolt.

Furthermore, the size of the opening of the fixing piece, which is fixedly connected with the oven door frame of the coke oven, is the same as that of the opening of the fixing bolt of the oven door frame; the upper part of the fixed part is provided with an adjustable bolt.

Further, the sealing element is made of a thin steel plate, and the thickness of the sealing element is 3-5 mm; the length of the sealing element is the same as the width of the coke oven door frame, and mounting positions of the fixing elements are reserved at the T-shaped bolt positions on two sides of the coke oven door frame; the height of the sealing element is 10-25mm lower than the gap between the furnace door frame and the small furnace head furnace protecting iron element, and a sealing groove is respectively reserved at the upper part and the lower part and is sealed by a ceramic fiber rope.

The utility model has the beneficial effects that:

a) simple installation, short operation time and low labor intensity of operators.

b) Can realize flexible sealing, can adapt to the furnace body displacement change of the coke oven in the whole coking process, and thoroughly solves the problem of smoke emission of a small furnace head.

c) The small furnace head part has no danger of dropping the fixed material, and the safety control degree is improved.

Drawings

The utility model is further described below with reference to the accompanying drawings.

FIG. 1: and (4) a seal view.

FIG. 2 is a drawing: and (5) a view of the fixing piece.

FIG. 3: the fixing piece and the sealing piece are assembled schematically.

FIG. 4 is a drawing: the schematic diagram of the originally designed small furnace head sealing device.

FIG. 5: the utility model designs a schematic diagram of a small furnace head sealing device.

1. The utility model relates to a furnace hearth structure, which comprises a fixing piece, 2. a sealing piece, 3. an original design, 4. a small furnace head masonry, 5. a furnace door frame fixing bolt, 6. a furnace door frame and 7. the utility model.

Detailed Description

The utility model designs a sealing device for a small head of a coke oven, which solves the problems of leakage and smoke leakage of the small head part of the coke oven.

1. The sealing element acts on the small head part of the coke oven and is used for sealing the surface of the masonry, and the sealing element is characterized in that:

the sealing member is made by thin steel sheet, and optional 3 ~ 5mm of thickness.

2. The length of the sealing element is the same as the width of the coke oven door frame, and mounting positions of the fixing elements are reserved at the T-shaped bolt positions on two sides of the oven door frame.

3. The height of the sealing element is 15mm lower than the gap between the furnace door frame and the small furnace head furnace protecting iron element, and a sealing groove is respectively reserved at the upper part and the lower part and can be sealed by ceramic fiber ropes.

4. The fixing piece is fixed with the top of the coke oven door frame through a T-shaped bolt, the sealing piece is pressed and fixed at the small oven head part, and the fixing piece has the functions of clamping the sealing piece and pressing the sealing piece.

5. The opening of the fixed part connected and fixed with the furnace door frame is the same as the opening of the furnace door frame fixing bolt in size.

6. The upper part of the fixing part is provided with an adjustable bolt, and the sealing element is pressed and fixed by the reactive force generated between the elastic bolt and an iron piece embedded in the small furnace head part.

The utility model replaces the complex structure of the original design, simplifies the sealing structure of the small furnace end part, reduces the difficulty of thermal state maintenance of the small furnace end part in the production process, improves the sealing effect of the small furnace end area, does not stop production in the whole implementation process, can realize on-line thermal state maintenance, and has the following specific implementation mode:

1) cleaning the small furnace head part, folding the old sealing element, the casting material, the ceramic fiber and other materials, and exposing the masonry and the iron element body.

2) And paving a ceramic fiber blanket with the thickness of 25mm on the surface of the masonry and the top surface of the furnace door frame (selecting 96/1260 and above).

3) And removing the fixing bolt at the uppermost part of the furnace door frame.

4) And pressing the sealing element on the ceramic fiber blanket for compaction.

5) And the fixing piece is clamped on the upper part of the sealing piece and is fixed with the top of the furnace door frame through a T-shaped bolt.

6) Adjusting bolts at the upper parts of the fixing parts, and adjusting the compression degree of the sealing parts.

7) The phi 30mm ceramic fiber rope is filled up and down the sealing element

8) And cleaning off the residues on site.

The specific embodiment is as follows:

the utility model is adopted by the No. 7 and No. 8 coke ovens of the Tai-Gai coking plant to seal the small head part.

With the increase of the furnace life of the coke oven, the phenomena of leakage and smoke leakage often occur at the small furnace head parts at the two sides of the coke oven, and the environment-friendly production of the coke oven is influenced. The utility model adopts the mode of combining the sealing element and the fixing element, can tightly press the ceramic fiber blanket on the top of the brickwork and the furnace door frame, realizes flexible sealing and avoids the problem of leakage caused by the change of the furnace body due to cold and heat; the fixing mode of the utility model effectively utilizes the structural characteristics of the coke oven, and the mode of fixing and positioning by using the T-shaped fixing bolt at the upper part of the oven door frame ensures the structural stability of the sealing device and the continuity and effectiveness of the sealing effect.

The above description is only an embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any changes or modifications within the scope of the present invention by those skilled in the art are covered by the present invention.

Claims

1. A sealing device for a small furnace end of a coke oven is characterized in that: the sealing element is arranged outside the small coke oven head and used for sealing the surface of a brickwork of the small coke oven head, and the fixing element is fixed at the top of a coke oven door frame through a T-shaped bolt.

2. The sealing device for the small oven head of the coke oven as claimed in claim 1, wherein: the size of the opening of the fixing piece connected and fixed with the coke oven door frame is the same as that of the opening of the oven door frame fixing bolt; the upper part of the fixed part is provided with an adjustable bolt.

3. The sealing device for the small oven head of the coke oven as claimed in claim 1, wherein: the sealing element is made of a thin steel plate, and the thickness of the sealing element is 3-5 mm; the length of the sealing element is the same as the width of the coke oven door frame, and mounting positions of the fixing elements are reserved at the T-shaped bolt positions on two sides of the coke oven door frame; the height of the sealing element is 10-25mm lower than the gap between the furnace door frame and the small furnace head furnace protecting iron element, and a sealing groove is respectively reserved at the upper part and the lower part and is sealed by a ceramic fiber rope.