Bottom structure device of coke receiving tank of coke receiving car of heat recovery coke oven

Abstract

The utility model provides a bottom structure device of a coke receiving groove of a coke receiving car of a heat recovery coke oven, which comprises a bottom sealing plate and a plurality of square groove frame structures arranged on the bottom sealing plate, and the plurality of square groove frame structures are distributed on the bottom sealing plate in a multi-row and multi-column mode. At least one layer of fiber board is laid at the groove bottom of each square groove frame structure, a fused alumina zirconia castable precast block is embedded in a groove body of each square groove frame structure, and a gap between every two adjacent fused alumina zirconia castable precast blocks is filled with fused alumina zirconia castable. And the upper surface of the filled fused alumina zirconia castable and the upper surface of the fused alumina zirconia castable precast block are on the same horizontal plane. The utility model has the advantages of simple integral structure, long service life, easiness in replacement, convenience in use and the like, and has higher popularization and application values.

Description

Technical Field

[0001] The utility model relates to the field of a coke receiving car and a coke trough, and in particular to a coke receiving car and a coke trough bottom structure device for a heat recovery coke oven. Background Art

[0002] The coke receiving trough of the heat recovery coke oven coke receiving vehicle is used to receive the red coke pushed out of the coke oven carbonization chamber, and then push the red coke from the coke receiving trough to the coke tank of the dry quenching furnace through the fixed coke pushing rod. The traditional coke receiving trough bottom structure is to cast the zirconium corundum castable material on the bottom frame of the coke receiving trough as a whole. Since the overall equipment of the coke receiving trough is too large, it is impossible to bake the cast zirconium corundum castable, which leads to the overall low performance of the zirconium corundum castable. In the long-term and frequent coke receiving process, the surface of the zirconium corundum castable of this structure is easy to wear out multiple pits, causing the fixed coke pushing rod to fluctuate in the coke pushing process, which affects the safe and stable production of the equipment. In addition, the coke receiving trough is in contact with the red coke for a long time, and the temperature of the trough body is high. It needs to stop for a long time to cool down before filling and pouring the pits of the zirconium corundum castable at the bottom to repair, but the repaired pits are easily worn out after use, and such repeated use greatly affects the efficiency of the coke receiving work. To this end, we proposed a heat recovery coke oven receiving car coke receiving trough bottom structure device to improve the above technical problems existing in the prior art. Utility Model Content

[0003] The utility model aims to provide a coke receiving tank bottom structure device of a coke receiving car of a heat recovery coke oven, so as to solve the problem that the structure of the prior art is easy to wear out pits and difficult to repair during the coke receiving process.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a bottom structure device of a coke receiving groove of a heat recovery coke oven coke receiving car, comprising a bottom sealing plate, and a plurality of square groove frame structures arranged on the bottom sealing plate, wherein the plurality of square groove frame structures are distributed on the bottom sealing plate in the form of multiple rows and columns, and the groove bottom of the square groove frame structure is paved with at least one layer of fiberboard, a zirconium corundum castable prefabricated block is embedded in the groove body of each of the square groove frame structures, and zirconium corundum castable is filled in the gap between adjacent zirconium corundum castable prefabricated blocks, and the upper surface of the filled zirconium corundum castable is on the same horizontal plane as the upper surface of the zirconium corundum castable prefabricated block.

[0005] Furthermore, the thickness of the bottom sealing plate is at least 10 mm.

[0006] Furthermore, the material of the bottom sealing plate is Q235B.

[0007] Furthermore, the square trough frame structure is formed by splicing a plurality of H-shaped steel frames with the top wing panels cut off.

[0008] Further, the thickness of the fiberboard is 30 mm.

[0009] Further, the zirconium corundum castable precast block includes a type-I zirconium corundum castable precast block and a type-II zirconium corundum castable precast block. The type-I zirconium corundum castable precast blocks are distributed in the square groove frame structures of the first row and the last row, and one side of the upper edge thereof is provided with ears extending outwards. The type-II zirconium corundum castable precast blocks are distributed in the square groove frame structures other than the first row and the last row.

[0010] Further, the upper surface of the zirconium corundum castable precast block is provided with concave holes, and lifting rings are arranged in the concave holes.

[0011] Further, a zirconium-containing refractory fiber blanket is plugged in the concave holes.

[0012] After adopting the above technical solutions, the following beneficial effects are achieved compared with the existing technologies:

[0013] 1. The bottom structure of the coke receiving trough is changed to a square structure for placing the zirconium corundum castable precast blocks. The zirconium corundum castable precast blocks can be pre-cured, dried and baked in a furnace in advance, and have high compressive strength and flexural strength, can withstand large mechanical impacts and temperature changes, and extend the service life of the bottom structure device of the coke receiving trough;

[0014] 2. Each zirconium corundum castable precast block is a square block independent structure, having the characteristics of easy replacement;

[0015] 3. After the zirconium corundum castable precast blocks are installed in the bottom structure device of the coke receiving trough, no further curing is required, and it can be directly put into production, which is convenient to use;

[0016] 4. Adopting the structural form of the zirconium corundum castable precast blocks, due to the good overall performance and easy replacement of the precast blocks, the labor intensity of workers for maintenance can be greatly reduced.

[0017] All in all, the overall structure of the present utility model is simple, has a long service life, and has the advantages of easy replacement, convenient use, etc., and has great popularization and application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a schematic structural diagram of the present utility model;

[0020] Figure 2is corresponding to Figure 1 Cross-sectional view A-A;

[0021] Figure 3 is a schematic diagram of the partial structure of the present utility model;

[0022] Figure 4 is corresponding to Figure 3 Enlarged view of part B;

[0023] Figure 5 is a schematic diagram of the structure of the Type-II zircon mullite castable precast block 42 in the present utility model;

[0024] Figure 6 is a top view of the Type-II zircon mullite castable precast block 42 in the present utility model;

[0025] Figure 7 is Figure 5 Cross-sectional view C-C;

[0026] Figure 8 is a schematic diagram of the structure of the Type-I zircon mullite castable precast block 41 in the present utility model;

[0027] Figure 9 is a top view of the Type-I zircon mullite castable precast block 41 in the present utility model;

[0028] Figure 10 is corresponding to Figure 8 Cross-sectional view D-D;

[0029] Figure 11 is corresponding to Figure 2 Enlarged view of part E in;

[0030] Explanation of reference numerals: 1, bottom sealing plate; 2, H-shaped steel frame; 3, fiberboard; 4, zircon mullite castable precast block; 41, Type-I zircon mullite castable precast block; 411, ear; 42, Type-II zircon mullite castable precast block; 43, concave hole; 431, lifting ring; 432, zircon-containing refractory fiber blanket; 5, zircon mullite castable. Detailed implementation manners

[0031] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the following combines with embodiments to further elaborate on the present utility model. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0032] Aiming at the problems existing in the prior art, the present utility model provides a bottom structure device of a coke receiving trough of a heat recovery coke oven. The following describes the present utility model in detail with reference to the drawings.

[0033] Refer to Figures 1 - 11As shown, the technical solution adopted in this specific embodiment is: a bottom structural device of the coke trough of a heat recovery coke oven receiving car, comprising a bottom sealing plate 1, and a plurality of square trough frame structures fixedly connected to the bottom sealing plate 1, the thickness of the bottom sealing plate 1 is at least 10 mm, and the material used for the bottom sealing plate 1 is Q235B (carbon structural steel), the square trough frame structure is composed of a plurality of H-shaped steel frames 2 with the top wing plates cut off, and a plurality of the square trough frame structures are distributed on the bottom sealing plate 1 in the form of multiple rows and columns, and at least one layer of 30 mm thick fiberboard 3 is laid in the bottom of the square trough frame structure, in order to provide heat insulation for the bottom of the bottom sealing plate 1 and protect the hydraulic cylinder under the bottom sealing plate 1.

[0034] A zirconium corundum castable prefabricated block 4 is embedded in the trough body of each of the square trough frame structures. The zirconium corundum castable prefabricated block 4 is prefabricated according to the size of the square trough frame structure and is previously cured, dried and furnace-treated. It has high compressive strength and flexural strength and can withstand large mechanical shocks and temperature changes. At the same time, the device adopts the form of a zirconium corundum castable prefabricated block 4, which has the advantage of easy replacement.

[0035] After the zirconium corundum castable prefabricated blocks 4 are installed in the square slot frame structure, the gaps between the adjacent zirconium corundum castable prefabricated blocks 4 are filled with zirconium corundum castable 5, and the upper surface of the filled zirconium corundum castable 5 is located on the same horizontal plane as the upper surface of the zirconium corundum castable prefabricated blocks 4, which does not affect the coke pushing work of the fixed coke pushing rod.

[0036] It should be specifically explained that the zirconium corundum castable prefabricated block 4 includes two forms, one is a type I zirconium corundum castable prefabricated block 41, which is installed and distributed in the square groove frame structure of the first row and the last row, and is distributed in the length direction of the bottom sealing plate 1, and at the same time, an upper edge of one side thereof has an ear 411 extending outward; the other is a type II zirconium corundum castable prefabricated block 42, which is distributed in the square groove frame structure outside the first row and the last row.

[0037] It should be specifically explained that the upper surface of the zirconium corundum castable prefabricated block 4 is provided with a concave hole 43, and a lifting ring 431 is pre-buried in the concave hole 43, and the zirconium corundum castable prefabricated block 4 is lifted to the square groove frame structure position at the bottom of the coke receiving groove through the lifting ring 431. After installation, a zirconium-containing refractory fiber blanket 432 is inserted into each of the concave holes 43. The zirconium-containing refractory fiber blanket 432 has a long-term temperature resistance of more than 1350°C and red coke greater than 1100°C. When the zirconium corundum castable prefabricated block 4 needs to be replaced, it is only necessary to take out the zirconium-containing refractory fiber blanket 432, and the zirconium corundum castable prefabricated block 4 can be taken out through the lifting ring 431 for replacement.

[0038] Specifically, after the zircon corundum castable precast block 4 is installed, its upper surface is flush with the upper surface of the bottom lining plate at the outlet of the structural device.

[0039] In the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0040] The above is only used to illustrate the technical solution of the present invention and not to limit it. Other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solution of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A bottom structure device of a coke receiving trough of a coke receiving car for a heat recovery coke oven, characterized in that, It includes a bottom sealing plate and a plurality of square groove frame structures arranged on the bottom sealing plate. The plurality of square groove frame structures are distributed on the bottom sealing plate in a multi-row and multi-column form, and at least one layer of fiberboard is laid on the bottom of the groove of the square groove frame structure. Zirconia corundum castable precast blocks are embedded in the grooves of each square groove frame structure, and zirconia corundum castable is filled in the gaps between adjacent zirconia corundum castable precast blocks. The upper surface of the filled zirconia corundum castable is on the same horizontal plane as the upper surface of the zirconia corundum castable precast block.

2. The bottom structure device of the coke receiving trough of the coke receiving car for the heat recovery coke oven according to claim 1, characterized in that The thickness of the bottom sealing plate is at least 10 mm.

3. The bottom structure device of the coke receiving tank of the hot recovery coke oven coke receiving vehicle according to claim 1, characterized in that, The material of the bottom sealing plate is Q235B.

4. The bottom structure device of the coke receiving trough of the coke receiving car of the heat recovery coke oven according to claim 1, characterized in that, The square groove frame structure is composed of the splicing of a plurality of H-shaped steel frames with the top wing plates cut off.

5. The bottom structure device of the coke receiving tank of the coke receiving car for the heat recovery coke oven according to claim 1, characterized in that, The thickness of the fiberboard is 30 mm.

6. The bottom structure device of the coke receiving trough of the coke receiving car of the heat recovery coke oven according to claim 1, characterized in that The zirconia corundum castable precast block includes a type-I zirconia corundum castable precast block and a type-II zirconia corundum castable precast block. The type-I zirconia corundum castable precast block is distributed in the square groove frame structures of the first row and the last row, and one side of it has an ear extending outwards. The type-II zirconia corundum castable precast block is distributed in the square groove frame structures other than the first row and the last row.

7. The bottom structure device of the coke receiving trough of the coke receiving car for a heat recovery coke oven according to any one of claims 1 or 6, wherein, The upper surface of the zirconia corundum castable precast block has a concave hole, and a lifting ring is arranged in the concave hole.

8. The bottom structure device of the coke receiving trough of the hot recovery coke oven coke receiving car according to claim 7, characterized in that, A zirconia-containing refractory fiber blanket is plugged in the concave hole.

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