Dry quenching coke pot lining plate anti-falling device

Abstract

The utility model discloses a dry quenching coke pot lining plate anti-falling device which comprises a dry quenching coke pot and a lining plate, an internal thread mounting pipe is fixedly mounted on the inner wall of the dry quenching coke pot in an embedded mode, mounting holes are formed in the four corners of the lining plate in a penetrating mode, and mounting bolts are movably connected to the inner walls of the mounting holes in an attached mode. An anti-falling groove is formed in the inner wall of the dry quenching coke tank, an anti-falling boss is arranged at the rear end of the lining plate, first contraction grooves are formed in the inner walls of the upper end and the lower end of the anti-falling groove, supporting springs are fixedly installed on the inner sides of the first contraction grooves, and extrusion battens used for conducting extrusion positioning on the anti-falling boss are fixedly installed at the outer ends of the supporting springs. A trapezoidal groove is formed in the upper end of the lining plate in a penetrating mode, the inner wall of the trapezoidal groove is in interference connection with a wedge block matched with the inner wall of the trapezoidal groove, a second contraction groove is formed in the inner wall of the trapezoidal groove, and a pre-tightening spring is fixedly installed on the inner wall of the second contraction groove. According to the utility model, the anti-falling function of the lining plate is realized.

Description

Technical Field

[0001] This utility model relates to the technical field of dry quenching equipment, specifically to a device for preventing the lining plate of a dry quenching coke pot from falling off. Background Technology

[0002] Dry quenching is a modern coke cooling process that uses an inert gas (such as nitrogen) in a closed system to cool high-temperature coke, replacing the traditional water-spray wet quenching method. Its core equipment is the dry quenching oven, which achieves cooling through indirect heat exchange between circulating gas and coke, while simultaneously recovering waste heat for power generation or process heating. The main functions of dry quenching include:

[0003] Reduced pollutant emissions: Wet quenching produces large amounts of steam, dust, and phenol-cyanide wastewater, while dry quenching produces no wastewater or exhaust gas, and dust emissions are reduced by more than 90%. Reduced carbon emissions: Waste heat power generation can replace some fossil fuels, reducing carbon dioxide emissions. Increased strength: The slow and uniform cooling process reduces internal thermal stress in coke, increasing M40 (crush strength) by 3-5% and reducing M10 (wear resistance) by 0.5-1%. Stable moisture content: Coke moisture content is reduced to below 0.5% (compared to about 4-6% in wet quenching), which is beneficial to the stability of blast furnace smelting. Waste heat recovery: The heat absorbed by inert gases (about 800-900℃) is converted into steam through a waste heat boiler, which can be used to generate electricity or power other processes, recovering about 45-55 kg of standard coal energy per ton of coke. Reduced energy consumption: Compared to wet quenching, the total energy consumption of the dry quenching process can be reduced by 20-30%. Reduced corrosion: No salt spray or acidic gas is generated, extending the life of coke transport equipment (belt conveyors, screening machines) by 3-5 years. Stable blast furnace operation: Stable coke quality reduces the risk of fluctuations in blast furnace conditions.

[0004] However, in actual use, the existing technology requires the coke canister to withstand the impact and friction of high-temperature coke for a long time in the dry quenching process. The wear-resistant lining plate inside is prone to failure due to thermal expansion, mechanical vibration and repeated loading and unloading, which can cause the lining plate to fall off. Utility Model Content

[0005] The purpose of this utility model is to provide a device to prevent the lining plate of the dry quenching coke can from falling off, so as to solve the problem mentioned in the background art that in the dry quenching process, the coke can needs to withstand the impact and friction of high temperature coke for a long time, and the wear-resistant lining plate inside is prone to failure due to thermal expansion, mechanical vibration and repeated loading and unloading, which leads to the problem of the lining plate falling off.

[0006] To achieve the above objectives, the present invention provides the following technical solution: including a dry quenching coke canister and a liner, wherein an internally threaded mounting tube is embedded and fixedly installed on the inner wall of the dry quenching coke canister, and mounting holes are provided through the four corners of the liner, and mounting bolts are movably connected to the inner wall of the mounting holes.

[0007] The inner wall of the dry quenching coke can is provided with an anti-detachment groove, and the rear end of the liner is provided with an anti-detachment boss. The inner walls of the upper and lower ends of the anti-detachment groove are provided with a first shrinkage groove. A support spring is fixedly installed inside the first shrinkage groove. An extrusion strip for squeezing and positioning the anti-detachment boss is fixedly installed at the outer end of the support spring. A trapezoidal groove is provided through the upper end of the liner. A wedge block matching the inner wall of the trapezoidal groove is interference-connected to the inner wall of the trapezoidal groove. A second shrinkage groove is provided inside the trapezoidal groove. A pre-tightening spring is fixedly installed inside the second shrinkage groove. An extrusion plate for squeezing and pre-tightening the wedge block is fixedly installed outside the pre-tightening spring. A pull hole is provided at the outer end of the wedge block.

[0008] Preferably, there are several liner plates, which are symmetrically distributed along the inner wall of the dry quenching coke can. The inner thread of the mounting bolt is connected to the inner wall of the internal thread mounting pipe, and the outer curved surface of the mounting bolt is movably connected to an elastic washer for preventing the mounting bolt from becoming loose.

[0009] Preferably, the anti-detachment protrusion is movably connected to the inner wall of the anti-detachment groove, and a buffer pad is fixedly installed on the part of the anti-detachment protrusion that is in contact with the inner wall of the anti-detachment groove. The buffer pad is made of high-temperature resistant and highly elastic ceramic fiber material.

[0010] Preferably, the first shrinkage grooves are symmetrically distributed on the inner walls of the upper and lower ends of the anti-detachment grooves, and the support spring is in a compressed state.

[0011] Preferably, the inner sides of the upper and lower ends of the anti-detachment protrusion are provided with bevels, the lower end of the trapezoidal groove is inclined inward, and the lower end of the trapezoidal groove extends inward to the inner wall of the anti-detachment groove.

[0012] Preferably, the wedge has beveled angles on both sides at its lower end, and the preload spring is in a compressed state.

[0013] Preferably, there are several pull holes, which are symmetrically distributed around the outer ends of the wedge blocks.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] When the liner is fixedly installed on the inner wall of the dry quenching coke tank, the buffer pad fixedly installed by the anti-detachment protrusion and the inner wall of the anti-detachment groove will effectively absorb the stress generated by the liner due to temperature changes and mechanical impact. At the same time, when the liner is fixedly installed on the inner wall of the dry quenching coke tank, the elastic potential energy generated by the compression of the support spring will push the extrusion strip to extrude and position the upper and lower ends of the anti-detachment protrusion, so that the anti-detachment protrusion remains stable on the inner wall of the anti-detachment groove. This improves the stability of the liner while it is fixedly installed on the inner wall of the dry quenching coke tank.

[0016] This invention also utilizes the elastic potential energy generated by the compression of the pre-tightening spring to push the extrusion wedge block to maintain a stable interference fit with the inner wall of the trapezoidal groove. When the wedge block maintains a stable interference fit with the inner wall of the trapezoidal groove, the friction between the wedge block and the inner wall of the trapezoidal groove increases with the temperature due to the thermal expansion of the dry quenching coke can. The expansion of the wedge block enhances the clamping force and forms a self-locking effect, thereby achieving the anti-detachment function of the liner plate. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a dry quenching coke pot liner anti-fall-off device according to the present invention;

[0018] Figure 2 This is a partial structural diagram of a dry quenching coke pot liner anti-fall-off device according to the present invention.

[0019] Figure 3 This is a partial structural cross-sectional view of a device for preventing the lining of a dry quenching coke pot from falling off, according to this utility model. Figure 1 ;

[0020] Figure 4 This is a partial structural cross-sectional view of a device for preventing the lining of a dry quenching coke pot from falling off, according to this utility model. Figure 2 .

[0021] In the diagram: 1. Dry quenching coke canister; 2. Liner plate; 3. Internally threaded mounting pipe; 4. Mounting hole; 5. Anti-detachment groove; 6. Anti-detachment boss; 7. Support spring; 8. Extrusion strip; 9. Trapezoidal groove; 10. Wedge block; 11. Second shrinkage groove; 12. Pre-tightening spring; 13. Extrusion plate; 14. Pull hole; 15. Mounting bolt; 16. First shrinkage groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4This utility model provides a technical solution for a dry quenching coke can liner anti-detachment device: it includes a dry quenching coke can 1 and a liner 2, and there are several liner 2s, which are symmetrically distributed in sequence on the inner wall of the dry quenching coke can 1. An internal threaded mounting tube 3 is embedded and fixedly installed on the inner wall of the dry quenching coke can 1. The liner 2 has mounting holes 4 through the four corners. The inner wall of the mounting hole 4 is fitted with a mounting bolt 15, and the inner side of the mounting bolt 15 is threaded to the inner wall of the internal threaded mounting tube 3. The outer curved surface of the mounting bolt 15 is fitted with an elastic washer for placing the mounting bolt 15 loosening, so that the liner 2 is fixedly installed on the inner wall of the dry quenching coke can 1 by the mounting bolt 15 and the internal threaded mounting tube 3.

[0024] The inner wall of the dry quenching coke tank 1 is provided with an anti-detachment groove 5, and the rear end of the liner 2 is provided with an anti-detachment protrusion 6. The anti-detachment protrusion 6 is movably connected to the inner wall of the anti-detachment groove 5. A buffer pad is fixedly installed on the part of the anti-detachment protrusion 6 that is in contact with the inner wall of the anti-detachment groove 5. The buffer pad is made of high-temperature resistant and high-elasticity ceramic fiber material, and its shape is adapted to the gap between the anti-detachment protrusion 6 and the inner wall of the anti-detachment groove 5. It can effectively absorb the stress generated by the liner 2 due to temperature changes and mechanical impact. The inner walls of the upper and lower ends of the anti-detachment groove 5 are provided with first contraction grooves 16, and the first contraction grooves 16 are symmetrically distributed on the inner walls of the upper and lower ends of the anti-detachment groove 5. A support spring 7 is fixedly installed on the inner side of the first contraction groove 16, and the support spring 7 is in a compressed state. A device for supporting the anti-detachment protrusion is fixedly installed on the outer end of the support spring 7. The extrusion strip 8 of the platform 6 is used for extrusion positioning. The inner sides of the upper and lower ends of the anti-detachment boss 6 are provided with bevels. The upper end of the liner 2 is provided with a trapezoidal groove 9, and the lower end of the trapezoidal groove 9 is inclined inward. The lower end of the trapezoidal groove 9 extends inward to the inner wall of the anti-detachment groove 5. The inner wall of the trapezoidal groove 9 is interference-connected with a wedge 10 that matches the inner wall of the trapezoidal groove 9. The lower ends of the wedge 10 are provided with bevels on both sides. The inner wall of the trapezoidal groove 9 is provided with a second contraction groove 11. A pre-tension spring 12 is fixedly installed on the inner wall of the second contraction groove 11 and is in a compressed state. An extrusion piece 13 for extruding and pre-tensioning the wedge 10 is fixedly installed on the outside of the pre-tension spring 12. A pull hole 14 is provided on the outer end of the wedge 10, and there are several pull holes 14, which are symmetrically distributed around the outer end of the wedge 10.

[0025] Working principle: In use, this utility model uses mounting bolts 15 and internal threaded mounting tubes 3 to fix the liner plate 2 to the inner wall of the dry quenching coke tank 1. When the liner plate 2 is fixedly installed on the inner wall of the dry quenching coke tank 1, the buffer pad fixedly installed by the anti-detachment protrusion 6 and the inner wall of the anti-detachment groove 5 will effectively absorb the stress generated by the liner plate 2 due to temperature changes and mechanical impact. At the same time, when the liner plate 2 is fixedly installed on the inner wall of the dry quenching coke tank 1, the elastic potential energy generated by the compression of the support spring 7 will push the extrusion strip 8 in the opposite direction to extrude and position the upper and lower ends of the anti-detachment protrusion 6, so that the anti-detachment protrusion 6 remains stable on the inner wall of the anti-detachment groove 5, thereby improving the stability of the liner plate 2 while fixing it to the inner wall of the dry quenching coke tank 1.

[0026] At the same time, the elastic potential energy generated by the compression of the pre-tightening spring 12 will push the extrusion plate 13 and the wedge block 10 to maintain a stable interference connection with the inner wall of the trapezoidal groove 9. When the wedge block 10 maintains a stable interference connection with the inner wall of the trapezoidal groove 9, the friction between the wedge block 10 and the inner wall of the trapezoidal groove 9 will increase with the temperature by utilizing the thermal expansion characteristics of the dry quenching coke can 1. The expansion of the wedge block 10 will enhance the clamping force and form a self-locking effect, thereby achieving the anti-detachment function of the liner plate 2.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for preventing the lining plate of a dry quenching coke pot from falling off, characterized in that: The coke canister (1) and the liner (2) are included. The inner wall of the coke canister (1) is inlaid with a threaded mounting tube (3). The liner (2) has mounting holes (4) through the four corners. The inner wall of the mounting holes (4) is fitted with mounting bolts (15). The inner wall of the dry quenching coke can (1) is provided with an anti-detachment groove (5), the rear end of the liner (2) is provided with an anti-detachment boss (6), the inner walls of the upper and lower ends of the anti-detachment groove (5) are provided with a first shrinkage groove (16), a support spring (7) is fixedly installed on the inner side of the first shrinkage groove (16), and an extrusion strip (8) for extruding and positioning the anti-detachment boss (6) is fixedly installed on the outer end of the support spring (7). A trapezoidal groove (9) is provided through the upper end of the liner (2), and a wedge (10) matching the inner wall of the trapezoidal groove (9) is interference-connected to the inner wall of the trapezoidal groove (9). A second shrinkage groove (11) is provided on the inner wall of the trapezoidal groove (9), a pre-tightening spring (12) is fixedly installed on the inner wall of the second shrinkage groove (11), and an extrusion piece (13) for extruding and pre-tightening the wedge (10) is fixedly installed on the outer side of the pre-tightening spring (12). A pull hole (14) is provided on the outer end of the wedge (10).

2. The anti-detachment device for dry quenching coke pot liner according to claim 1, characterized in that: There are several liner plates (2), which are symmetrically distributed in sequence on the inner wall of the dry quenching coke can (1). The inner thread of the mounting bolt (15) is connected to the inner wall of the internal thread mounting pipe (3). The outer curved surface of the mounting bolt (15) is fitted with an elastic washer for preventing the mounting bolt (15) from becoming loose.

3. The anti-detachment device for dry quenching coke pot liner according to claim 2, characterized in that: The anti-detachment protrusion (6) is movably connected to the inner wall of the anti-detachment groove (5). A buffer pad is fixedly installed on the part of the anti-detachment protrusion (6) that is in contact with the inner wall of the anti-detachment groove (5). The buffer pad is made of high temperature resistant and high elastic ceramic fiber material.

4. The anti-detachment device for dry quenching coke pot liner according to claim 3, characterized in that: The first shrinkage groove (16) is symmetrically distributed on the inner walls of the upper and lower ends of the anti-detachment groove (5), and the support spring (7) is in a compressed state.

5. The anti-detachment device for the liner plate of a dry quenching coke oven according to claim 4, characterized in that: The anti-detachment protrusion (6) has an oblique angle on the inner side of its upper and lower ends, and the lower end of the trapezoidal groove (9) is inclined inward. The lower end of the trapezoidal groove (9) extends inward to the inner wall of the anti-detachment groove (5).

6. The anti-detachment device for dry quenching coke pot liner according to claim 5, characterized in that: The wedge (10) has beveled angles on both sides at its lower end, and the pre-tension spring (12) is in a compressed state.

7. The anti-detachment device for dry quenching coke pot liner according to claim 6, characterized in that: There are several holes (14), which are symmetrically distributed around the outer ends of the wedges (10).

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