Novel optimized structure of refractory lining of coke receiving car for dry quenching

Abstract

The utility model belongs to the technical field of coke receiving cars, and particularly provides a novel fire-resistant lining optimization structure of a coke receiving car for dry quenching, which comprises a frame and a fire-resistant lining body, the frame is a U-shaped groove formed by fixedly connecting section steel, the frame comprises a plurality of rectangular frames, the sizes of the rectangular frames are uniform, the rectangular frames are distributed in a rectangular matrix, and the fire-resistant lining body is arranged in the rectangular matrix. The plurality of refractory liners are assembled on the inner side surface of the frame, and the plurality of refractory liners completely cover the inner side surface of the frame; the fireproof lining body is of a flat rectangular structure, splicing blocks and splicing grooves are arranged on the side wall of the fireproof lining body, and when a plurality of fireproof lining bodies are spliced with one another, the splicing blocks are embedded into the adjacent splicing grooves. Compared with an existing lining plate scheme, the service life of the inner vehicle can be prolonged by 5-6 times by using a brick structure, the maintenance cost is reduced, the heat loss and the power generation benefit are increased, the refractory lining body adopted in the design is a large building block, and the refractory lining body and the frame are assembled in a manner of caulking grooves and positioning pins, so that the assembly stability of the refractory lining body and the frame is high.

Description

Technical Field

[0001] This utility model belongs to the field of coke receiving car technology, and specifically provides a novel optimized structure for the refractory lining of a dry quenching coke receiving car. Background Technology

[0002] The dry quenching coke receiving car is a key piece of equipment connecting the coke oven and the dry quenching coke oven. It is responsible for transferring red-hot coke (approximately 1000°C) from the carbonization chamber to the rotating coke tank, where it is cooled by the dry quenching coke oven. Traditional dry quenching coke tanks with heat-resistant cast iron linings suffer from high failure rates, safety hazards, and significant heat loss. Their original design used a frame and liner inlay structure, but frequent and drastic temperature changes (approximately 900°C temperature difference) caused the liner to easily crack, deform, or even detach.

[0003] Although both heat-resistant cast iron and stainless steel liners possess high heat resistance and wear resistance, under conditions of high-temperature baking at 1000℃, drastic fluctuations in thermal stress, and continuous friction from sharp-edged coke, the internal microstructure of the cast iron liner will undergo irreversible changes. This ultimately leads to cracking, deformation, and burn-off, resulting in frame deformation and bolt or liner detachment. Liner failure exposes coke for combustion, increasing burn-off and causing heat loss (if the seal fails), while also posing safety and environmental risks.

[0004] In addition, deformation, wear, or detachment of the bottom plate of the dry quenching coke receiving car can hinder the coke pushing operation and seriously affect production safety. Utility Model Content

[0005] To solve the above technical problems, the technical solution adopted by this utility model is: a novel optimized structure for the refractory lining of a dry quenching coke car, including a frame and refractory linings. The frame is a U-shaped channel formed by fixed connection of steel profiles. The frame includes multiple rectangular frames with uniform size and arranged in a rectangular matrix. Multiple refractory linings are assembled on the inner side of the frame and completely cover the inner side of the frame.

[0006] The refractory lining is a flat rectangular structure. The side wall of the refractory lining is provided with splicing blocks and splicing grooves. When multiple refractory linings are spliced ​​together, the splicing blocks are embedded in the adjacent splicing grooves.

[0007] Furthermore, the inner side of the rectangular frame is provided with a groove, the bottom surface of the refractory lining is provided with a protruding edge, and the size of the refractory lining matches the size of the rectangular frame. When the refractory lining is embedded in the rectangular frame, the protruding edge fits into the groove.

[0008] Furthermore, a cross support frame is provided along the diagonal direction inside the rectangular frame, and a base is fixedly installed in the middle of the cross support frame.

[0009] Furthermore, a pin is fitted in the center of the base, and a pin hole is provided in the center of the refractory lining, through which the pin passes.

[0010] Furthermore, the surface of the refractory lining is provided with a compensation groove, which is coaxially arranged with the pin hole.

[0011] The beneficial effects of using this utility model are:

[0012] Compared to existing lining solutions, using brick masonry structures can extend the service life of the inner car by 5 to 6 times, reduce maintenance costs, increase heat loss and power generation efficiency, resulting in significant economic benefits. Furthermore, the refractory lining has excellent heat insulation properties, reducing heat loss during the transportation of coke in the coke tank.

[0013] The fire-resistant lining used in this design is made of large blocks and assembled using a groove and positioning pin method. The assembly stability of the fire-resistant lining and the frame is strong, and it is easy to disassemble and maintain.

[0014] The refractory linings are joined together by splicing blocks and splicing grooves to achieve a jigsaw puzzle-like splicing effect, which improves the stability of the fit between the refractory linings. At the same time, small gaps are reserved at the splicing points of the refractory linings. When the refractory linings expand due to heat, the gaps can absorb part of the expansion. The refractory linings are fixed by mortise and tenon joints, which makes it easier to disassemble the refractory linings. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the frame of this utility model;

[0017] Figure 3 This is another structural schematic diagram of the framework of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the refractory lining of this utility model;

[0019] Figure 5 This is another structural schematic diagram of the refractory lining of this utility model;

[0020] The reference numerals in the figures include:

[0021] 1. Framework;

[0022] 101. Groove; 102. Pin; 103. Cross support frame; 104. Base plate;

[0023] 2. Refractory lining;

[0024] 201. Splicing block; 202. Splicing groove; 203. Pin hole; 204. Compensation groove. Detailed Implementation

[0025] The utility model is described in detail below with reference to the drawings.

[0026] Referring to Figures 1-5 A novel dry quenching coke connection car refractory lining optimization structure, including frame 1 and refractory lining 2, frame 1 is the U-shaped groove of section steel fixed connection, frame 1 includes multiple rectangular frames, multiple rectangular frames are uniform in size, and multiple rectangular frames are distributed in rectangular matrix, multiple refractory linings 2 are assembled on the inner side of frame 1, and multiple refractory linings 2 completely cover the inner side of frame 1.

[0027] Refractory lining 2 is flat rectangular structure, and splicing block 201 and splicing groove 202 are arranged on the side wall of refractory lining 2, when multiple refractory linings 2 are spliced, splicing block 201 is embedded in adjacent splicing groove 202.

[0028] Preferably, refractory lining 2 adopts high wear-resistant large block;Compared with the castable or cast iron lining of prior art, the weak point of working lining is reduced, and the service life is prolonged;

[0029] Further, the surface of refractory lining 2 is a square of 500mm*500mm.

[0030] Specifically, splicing block 201 and splicing groove 202 are semicircular;

[0031] Multiple refractory linings 2 can be divided into A-type bricks, B-type bricks and C-type bricks according to different assembly positions, splicing block 201 or splicing groove 202 is arranged on two side edges of A-type brick, splicing block 201 or splicing groove 202 is arranged on three side edges of B-type brick, and splicing block 201 or splicing groove 202 is arranged on four side edges of C-type brick.

[0032] The inner side of the inner side of the rectangular frame is provided with an embedding groove 101, the bottom surface of the refractory lining 2 is provided with a convex edge, and the size of the refractory lining 2 matches the size of the rectangular frame, and when the refractory lining 2 is embedded in the rectangular frame, the convex edge is embedded with the embedding groove 101.

[0033] The rectangular frame is provided with a cross support frame 103 along the diagonal direction, and a bottom support 104 is fixedly installed in the middle of the cross support frame 103.

[0034] The central part of the bottom support 104 is provided with a pin 102, and the central part of the refractory lining 2 is provided with a pin hole 203, and the pin 102 penetrates through the pin hole 203.

[0035] A compensation groove 204 is formed in the surface of the refractory lining 2, and the compensation groove 204 is coaxially arranged with the pin hole 203.

[0036] The above merely describes preferred embodiments of the present application, and for ordinary skilled people in the art, many changes can be made in the specific embodiments and application ranges according to the present application, as long as the changes do not depart from the concept of the present application, and all belong to the protection scope of the present application.

Claims

1. A new optimized structure of refractory lining for coke dry quenching pusher car, characterized in that: The frame is a U-shaped groove fixedly connected by profile steel, and the frame comprises a plurality of rectangular frames which are uniformly sized and arranged in a rectangular matrix. The fire-resistant lining is a flat rectangular structure, and a splicing block and a splicing groove are arranged on the side wall of the fire-resistant lining.

2. A novel optimized refractory lining of coke dry quenching push car as claimed in claim 1, wherein: An inner side of the rectangular frame is provided with an embedding groove, a bottom surface of the fire-resistant lining is provided with a convex edge, and the size of the fire-resistant lining matches the size of the rectangular frame.

3. A novel optimized refractory lining of coke dry quenching push car as claimed in claim 1, wherein: A cross support frame is arranged in a diagonal direction in the rectangular frame, and a bottom support is fixedly installed in the middle of the cross support frame.

4. A novel optimized refractory lining of coke dry quenching push car as claimed in claim 3, wherein: A pin is assembled in the center of the bottom support, and a pin hole is arranged in the center of the fire-resistant lining.

5. A novel optimized refractory lining of coke dry quenching push car as claimed in claim 1, wherein: The surface of the fire-resistant lining is provided with a compensation groove coaxially arranged with the pin hole.

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