Lining protection structure for high-temperature expansion joint of dry quenching furnace

Abstract

The utility model belongs to the technical field of lining building structures of dry quenching furnaces, and particularly provides a high-temperature expansion joint lining protection structure of a dry quenching furnace, which comprises an inner ring and an outer ring, both the inner ring and the outer ring are arc-shaped, the outer ring is attached to the upper part of the inner ring, the inner ring is formed by building a plurality of inner ring brickworks in an arc-shaped manner, and the inner ring brickworks are arc-shaped. The outer ring is formed by building a plurality of outer ring masonry bodies in an arc-shaped mode, the inner ring masonry bodies are divided into first building blocks and second building blocks, and semicircular grooves and semicircular flanges are arranged on the left side wall and the right side wall of the first building blocks and the left side wall and the right side wall of the second building blocks correspondingly; and the outer ring masonry comprises a third building block and a fourth building block. According to the scheme, the large building blocks are adopted to replace original pouring materials or small building blocks, the number of brick joints on the whole masonry body is reduced, and the effect of reducing weak spots on the working lining is achieved; meanwhile, the construction difficulty can be reduced through the large building blocks, and the construction efficiency of the building process is further improved; through the grooves, the flanges and the stepped surface structures, the building blocks are in lap joint with one another, the expansion joints are staggered at the lap joint and divided into two parts, and the air tightness of the expansion joints is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to dry quenching furnace lining construction structure technical field, especially provide a kind of dry quenching furnace high-temperature expansion joint lining protection structure. BACKGROUND

[0002] Dry quenching furnace primary dust removal inlet, outlet two expansion joints are subjected to high-temperature hot gas flow, coke powder scouring environment.Expansion and contraction caused by temperature change during use, expansion joint and lining material are easily damaged, cause expansion joint to leak, even stainless steel shell deformation, burn through, lead to dry quenching furnace production accident.

[0003] At present, expansion joint lining material is mostly castable, clay brick or masonry of mullite brick, and the brick body is small block, and expansion joint is reserved in the middle or both sides of the brick body, and refractory fiber cotton is filled in expansion joint.This kind of masonry is prone to block loosening and falling, and the expansion joint between masonry is straight joint, and the sealing performance of expansion joint is not good, when brick body is subjected to repeated thermal expansion and cooling contraction, leakage is prone to occur, finally affect the service life of masonry. UTILITY MODEL CONTENT

[0004] To solve the above technical problems, the utility model adopts the technical scheme of a kind of dry quenching furnace high-temperature expansion joint lining protection structure, including inner ring and outer ring, and the inner ring and outer ring are all circular arc arch, and outer ring is attached to the upper portion of inner ring, and inner ring is formed by the arc masonry of multiple inner ring masonry, and outer ring is formed by the arc masonry of multiple outer ring masonry.

[0005] Further, the inner ring masonry is divided into first block and second block, and the left and right side walls of first block and second block are respectively provided with semicircular groove and semicircular flange, and when inner ring is masonry, semicircular groove and semicircular flange of adjacent blocks are mutually embedded.

[0006] Further, the rear side wall of first block and the front side wall of second block are both provided with horizontal stepped surface, wherein the horizontal stepped surface of first block is upwardly arranged, and the horizontal stepped surface of second block is downwardly arranged, and when inner ring is masonry, the horizontal stepped surface of first block is attached to the horizontal stepped surface of second block, and gap is left between the vertical side wall of first block and the vertical side wall of second block.

[0007] Further, the outer ring masonry includes third block and fourth block, and short stepped surface is formed on the left and right side walls of third block and fourth block, and when outer ring is masonry, short stepped surface of adjacent blocks is mutually embedded.

[0008] Furthermore, vertical stepped surfaces are provided on the left side wall of the third block and the right side wall of the fourth block. The vertical stepped surfaces of the third block are set to the left, and the vertical stepped surfaces of the fourth block are set to the right. When the outer ring is constructed, the vertical stepped surfaces of the third block and the fourth block are in contact, and a gap is left between the transverse sidewalls of the third block and the transverse sidewalls of the fourth block.

[0009] The beneficial effects of using this utility model are:

[0010] This scheme uses large blocks to replace the original cast-in-place material or small blocks, reducing the number of brick joints on the entire masonry structure. This can reduce the weak points on the working lining and increase the stability and sealing of the masonry.

[0011] At the same time, large blocks, due to their smaller usage, can reduce construction difficulty and further accelerate the construction efficiency of the masonry process.

[0012] Through the use of grooves, flanges, and stepped surface structures, the blocks overlap with each other. The expansion joint of the masonry is located at the overlap of two large blocks, staggered into two parts, which not only effectively improves the airtightness of the expansion joint, but also allows the wall of the primary air duct to expand and contract freely. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the inner ring masonry structure of this utility model;

[0015] Figure 3 This is a left view of the inner ring masonry of this utility model;

[0016] Figure 4 This is a schematic diagram of the outer ring masonry structure of this utility model;

[0017] Figure 5 This is a top view of the outer ring masonry of this utility model;

[0018] Figure 6 This is a schematic diagram of the present invention being constructed on an arch;

[0019] The reference numerals in the figures include:

[0020] 1. Inner ring masonry; 101. First block; 102. Second block; 103. Semicircular groove; 104. Semicircular flange; 105. Transverse stepped surface;

[0021] 2. Outer ring masonry; 201. Third block; 202. Fourth block; 203. Short stepped surface; 204. Vertical stepped surface. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings.

[0023] Reference Figures 1-6 A protective structure for the inner lining of a high-temperature expansion joint in a dry quenching furnace includes an inner ring and an outer ring. Both the inner and outer rings are arc-shaped, and the outer ring is attached to the upper part of the inner ring. The inner ring is constructed by multiple inner ring masonry 1 arc-shaped blocks, and the outer ring is constructed by multiple outer ring masonry 2 arc-shaped blocks.

[0024] The inner ring masonry 1 is divided into a first block 101 and a second block 102. The left and right side walls of the first block 101 and the second block 102 are respectively provided with a semi-circular groove 103 and a semi-circular flange 104. When the inner ring is built, the semi-circular groove 103 and the semi-circular flange 104 of the adjacent blocks are interlocked.

[0025] A transverse stepped surface 105 is provided on the rear side wall of the first block 101 and the front side wall of the second block 102. The transverse stepped surface of the first block 101 is set upwards, and the transverse stepped surface of the second block 102 is set downwards. When the inner ring is formed, the transverse stepped surface of the first block 101 and the transverse stepped surface of the second block 102 are in contact, and a gap is left between the vertical side wall of the first block 101 and the vertical side wall of the second block 102.

[0026] The outer ring masonry 2 includes a third block 201 and a fourth block 202. Short stepped surfaces 203 are provided on the left and right side walls of the third block 201 and the fourth block 202. When the outer ring is constructed, the short stepped surfaces 203 of adjacent blocks interlock with each other.

[0027] Vertical stepped surfaces 204 are provided on the left side wall of the third block 201 and the right side wall of the fourth block 202. The vertical stepped surface of the third block 201 is set to the left, and the vertical stepped surface of the fourth block 202 is set to the right. When the outer ring is formed, the vertical stepped surface of the third block 201 and the vertical stepped surface of the fourth block 202 are in contact, and a gap is left between the transverse side wall of the third block 201 and the transverse side wall of the fourth block 202.

[0028] The gap is an expansion joint, and its width is X.

[0029] Taking a dry quenching furnace with a width of 7000 cm as an example, the maximum width of the first block 101 is 445 cm and the minimum width is 285 cm. The maximum width of the second block 102 is 605 cm and the minimum width is 445 cm. The maximum width of the third block 201 and the fourth block 202 is 365 cm and the minimum width is 525 cm. The gap X is 80 cm.

[0030] The above content is only a preferred embodiment of this utility model. For those skilled in the art, many changes can be made in the specific implementation and application scope based on the concept of this utility model. As long as these changes do not depart from the concept of this utility model, they all fall within the protection scope of this utility model.

Claims

1. A protective structure for the inner lining of a high-temperature expansion joint in a dry quenching furnace, characterized in that: It includes an inner ring and an outer ring, both of which are circular arches. The outer ring is attached to the upper part of the inner ring. The inner ring is constructed by multiple inner ring masonry blocks in an arc shape, and the outer ring is constructed by multiple outer ring masonry blocks in an arc shape.

2. The protective structure for the inner lining of a high-temperature expansion joint in a dry quenching furnace according to claim 1, characterized in that: The inner ring masonry is divided into a first block and a second block. The left and right side walls of the first block and the second block are respectively provided with a semi-circular groove and a semi-circular flange. When the inner ring is constructed, the semi-circular grooves and semi-circular flanges of adjacent blocks are interlocked.

3. The protective structure for the inner lining of a high-temperature expansion joint in a dry quenching furnace according to claim 2, characterized in that: The rear sidewall of the first block and the front sidewall of the second block are both provided with transverse stepped surfaces. The transverse stepped surfaces of the first block are set upwards and the transverse stepped surfaces of the second block are set downwards. When the inner ring is formed, the transverse stepped surfaces of the first block and the transverse stepped surfaces of the second block are in contact, and there is a gap between the vertical sidewalls of the first block and the vertical sidewalls of the second block.

4. The protective structure for the inner lining of a high-temperature expansion joint in a dry quenching furnace according to claim 1, characterized in that: The outer ring masonry includes a third block and a fourth block. Short stepped surfaces are provided on the left and right side walls of the third block and the fourth block. When the outer ring is constructed, the short stepped surfaces of adjacent blocks interlock with each other.

5. The protective structure for the inner lining of a high-temperature expansion joint in a dry quenching furnace according to claim 4, characterized in that: Vertical stepped surfaces are provided on the left side wall of the third block and the right side wall of the fourth block. The vertical stepped surface of the third block is set to the left, and the vertical stepped surface of the fourth block is set to the right. When the outer ring is formed, the vertical stepped surface of the third block and the vertical stepped surface of the fourth block are in contact, and a gap is left between the transverse side wall of the third block and the transverse side wall of the fourth block.

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