A top-loading coke oven water-sealed coal charging device

Abstract

This utility model relates to a water-sealed coal charging device for a top-loading coke oven, belonging to the technical field of the coking industry. The technical solution is as follows: it includes a water-sealed coal charging guide sleeve (1), a water-sealed coal charging hole seat (2), a coal charging hole cover (3), and a connecting water trough (4). The connecting water trough (4) is a U-shaped trough, which can connect multiple water-sealed coal charging hole seats (2) by bolts. During normal coking, the coal charging hole cover (3) is installed on the water-sealed coal charging hole seat (2) to seal the coal charging hole. During the coal charging operation, the coal charging car opens the coal charging hole cover (3), and the water-sealed coal charging guide sleeve (1) falls down. In addition to the bottom of the water-sealed coal charging guide sleeve (1) being sealed with the water-sealed coal charging base (2) by steel, the water seal ring (10) is inserted into the water-filled trough (12) of the water-sealed coal charging hole seat (2) to form a water seal, thereby achieving a sealing and isolation at the coal charging hole of the coal chemistry chamber and preventing the overflow of smoke and dust at the coal charging hole during the coal charging operation.

Description

Technical Field

[0001] This utility model relates to a water-sealed coal charging device for a top-loading coke oven, belonging to the field of top-loading coke oven coking technology. Background Technology

[0002] Top-charged coke ovens use gravity charging. After receiving coal in the coal tower, the coal charging car travels to the carbonization chamber of the charging hole, opens the charging hole cover, and the coal in the coal bunker of the charging car falls into the carbonization chamber through a screw feeder and a guide sleeve that matches the charging hole of the coke oven. Because the fineness of the coal (≤3mm particle size) is about 76-85%, when the coal enters the carbonization chamber, a large amount of raw coal gas is rapidly generated under high temperature. Most of the raw coal gas is drawn into the negative pressure raw coal gas pipeline through riser pipes, bridge pipes, and gas collecting pipes, and then sent to the coal gas purification system for treatment. A small portion of the raw coal gas that cannot be extracted in time, carrying coal dust, tar, etc., overflows through the charging hole, forming coal charging dust.

[0003] Currently, the contact between the coal charging guide sleeve and the coal charging hole seat is a steel-to-steel spherical contact or a steel-to-steel top-pressure spring blade contact, resulting in poor sealing and severe dust emission. While some coal charging guide sleeves are equipped with external dust collector sleeves, which can collect and treat some dust, the collection effect is greatly affected by pressure fluctuations in the dust collection system, and the system remains complex. This utility model is a water-sealed coal charging device for top-charging coke ovens. The coal charging guide sleeve and the coal charging hole seat have a socket-type water seal structure. During coal charging operations, the carbonization chamber is completely isolated from the outside environment through a water seal, effectively solving the problem of dust emission from the coal charging guide sleeve and charging hole during coal charging operations in current top-charging coke ovens. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] This utility model discloses a water-sealed coal charging device for top-loading coke ovens. The coal charging guide sleeve and the coal charging hole seat are of the socket water seal structure. When the coal charging car is performing coal charging operations, the coal charging guide sleeve and the coal charging hole of the carbonization chamber can be sealed by the socket water seal. This mainly solves the problem of smoke and dust escaping from the coal charging guide sleeve and the coal charging hole during the coal charging operation of the current top-loading coke oven coal charging car.

[0006] 2. Technical Solution

[0007] This utility model is achieved through the following technical solution: a top-loading coke oven water-sealed coal charging device, comprising a water-sealed coal charging guide sleeve, a water-sealed coal charging hole seat, a coal charging hole cover, a connecting water tank, connecting fasteners and gaskets.

[0008] The water-sealed coal charging guide sleeve is a cylindrical steel structure that mates with the upper coal charging guide sleeve and water-sealed coal charging seat of the coal charging car. The upper part is a straight cylindrical section, and the lower part is a bottom guide sleeve that seals with the inner surface of the water-sealed coal charging hole seat. The upper straight cylindrical section and the bottom guide sleeve are connected by a flange, with adjusting shims at the connection. The water-sealed coal charging guide sleeve has a water seal ring on the outside, forming a socket structure with the water-sealed coal charging hole seat's water-collecting trough. The water seal ring is bolted to the lower flange of the upper straight cylindrical section. The bottom guide sleeve has two structural forms: a spherical guide sleeve or a circular elastic blade edge.

[0009] The water-sealed coal charging hole seat is embedded in the refractory material of the coal charging hole on the top of the coke oven. It adopts an integral casting structure and consists of an inner cylinder, a water-holding trough, and a connecting structure corresponding to the water-holding trough. The upper part of the inner surface is a conical surface plus a flat surface structure that mates with the bottom guide sleeve of the water-sealed coal charging guide sleeve. There are two sealing methods between the upper surface of the water-sealed coal charging hole seat and the bottom guide sleeve of the water-sealed coal charging guide sleeve: the upper conical surface of the water-sealed coal charging hole seat and the spherical guide sleeve in the water-sealed coal charging guide sleeve can form a line seal; the flat surface above the upper conical surface of the water-sealed coal charging hole seat can form a seal by pressing against the circular elastic blade edge. The outer edge of the water-holding trough is lower than the inner edge to prevent water in the water-holding trough of the water-sealed coal charging hole seat from overflowing into the carbonization chamber when the water-sealed coal charging guide sleeve falls.

[0010] The coal charging hole cover is a cast structure. The casting part is hollow inside and filled with heat insulation material. The lower part is a spherical structure that matches the conical surface of the water-sealed coal charging hole seat to form a line seal. The upper center is equipped with a positioning cone structure that cooperates with the coal charging car cover opening device.

[0011] The connecting water tank is a U-shaped trough structure welded from steel plates, which connects multiple water-sealed coal charging holes at the water tank connecting structure.

[0012] 3. Beneficial effects

[0013] The coal charging guide sleeve and the coal charging hole seat adopt a socket water seal structure. When the coal charging car is charging, in addition to the steel-to-steel seal between the bottom guide sleeve of the coal charging guide sleeve and the coal charging hole seat, the coal charging guide sleeve and the coal charging hole seat can be water-sealed through the socket water seal structure, which can seal the equipment dust in the carbonization chamber and solve the problem of dust emission at the coal charging guide sleeve and the coal charging hole seat during the current top charging coke oven coal charging car. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly described below:

[0015] Figure 1 This is an elevation view of a top-loading coke oven water-sealed coal charging device according to the present invention.

[0016] Figure 2 Elevation view of the coal charging hole cover and water-sealed coal charging hole seat assembly

[0017] Figure 3 A top view of a top-loading coke oven water-sealed coal charging device.

[0018] Figure 4 For the structural diagram of the connecting water tank flange

[0019] Figure 5 U-shaped channel structure diagram for connecting water tank

[0020] Figure 6 Diagram of a water-sealed coal charging guide sleeve with a spherical guide sleeve.

[0021] Figure 7 Elevation view of water-sealed coal charging hole seat

[0022] Figure 8 Top view of water-sealed coal charging hole seat

[0023] Figure 9 Diagram of a water-sealed coal charging guide sleeve with a circular elastic blade edge.

[0024] In the diagram: 1. Water-sealed coal charging guide sleeve; 2. Water-sealed coal charging hole seat; 3. Coal charging hole cover; 4. Connecting water trough; 5. Furnace top refractory material; 6. Upper flange; 7. Straight cylinder section; 8. Lower flange; 9. Adjusting shims and fasteners; 10. Water seal ring; 11. Spherical guide sleeve; 12. Water tank; 13. Inner cylinder; 14. Connecting structure; 15. Circular elastic blade edge; 16. Spring assembly; 17. Bottom guide sleeve. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0026] Example 1:

[0027] See attached document Figure 1 , 2 3. A top-loading coke oven water-sealed coal charging device, comprising a water-sealed coal charging guide sleeve 1, a water-sealed coal charging hole seat 2, a coal charging hole cover 3, and a connecting water trough 4. The connecting water trough 4 can connect multiple water-sealed coal charging hole seats 2 by bolts. During the coal charging operation, the water-sealed coal charging guide sleeve 1 falls into the water-sealed coal charging hole seat 2 to form a socket water seal.

[0028] See attached document Figure 4 and 5 The connecting water tank has a U-shaped cross-section and is connected to the water-sealed coal charging hole seat via a flange.

[0029] See attached document Figure 6 The water-sealed coal charging guide sleeve 1 includes an upper flange 6, a straight section 7, a lower flange 8, a water seal ring 10, and a bottom guide sleeve 17. In this embodiment, the bottom guide sleeve 17 is a spherical guide sleeve 11 structure, which is connected to the straight section 7 by adjusting shims and fasteners 9. The spherical guide sleeve 11 is a casting or forging, with a spherical bottom, which can form a line seal with the upper conical surface of the water-sealed coal charging hole seat 2. The upper flange 6 is used to connect with the coal charging car.

[0030] See attached document Figure 7 and 8 The water-sealed coal charging hole seat 2 is an integral casting with its bottom embedded in the furnace top refractory 5. It includes a water tank 12, an inner cylinder 13, and a connecting structure 14 that cooperates with the water tank. The water tank 12 can form a socket water seal with the water seal ring 10 in the water-sealed coal charging guide sleeve 1. In this embodiment, the upper part of the inner cylinder 13 can be in contact with the spherical guide sleeve 11 in the water-sealed coal charging guide sleeve 1 or the bottom of the coal charging hole cover 3 to form a line seal.

[0031] In this embodiment, when no coal is being loaded, the coal loading hole cover 3 is installed on the water-sealed coal loading hole seat 2 to seal the coal loading hole of the normal coking and carbonization chamber. During the coal loading operation, the coal loading car opens the coal loading hole cover 3, the water-sealed coal loading guide sleeve 1 falls, and the spherical guide sleeve 11 contacts the upper conical surface of the water-sealed coal loading hole seat to form a line seal. At the same time, the water seal ring 10 penetrates into the water tank 12 of the water-sealed coal loading hole seat 2 to form a water seal, thereby achieving a sealing and isolation at the coal loading hole of the coal carbonization chamber and preventing the smoke and dust at the coal loading hole from overflowing during the coal loading operation.

[0032] Example 2:

[0033] See attached document Figure 1 , 2 3. A top-loading coke oven water-sealed coal charging device, comprising a water-sealed coal charging guide sleeve 1, a water-sealed coal charging hole seat 2, a coal charging hole cover 3, and a connecting water trough 4. The connecting water trough 4 can connect multiple water-sealed coal charging hole seats 2 by bolts. During the coal charging operation, the water-sealed coal charging guide sleeve 1 falls into the water-sealed coal charging hole seat 2 to form a socket water seal.

[0034] See attached document Figure 4 and 5 The connecting water tank has a U-shaped cross-section and is connected to the water-sealed coal charging hole seat via a flange.

[0035] See attached document Figure 6The water-sealed coal charging guide sleeve 1 includes an upper flange 6, a straight section 7, a lower flange 8, a water seal ring 10, and a bottom guide sleeve 17. In this embodiment, the bottom guide sleeve 17 has a circular elastic blade edge 15 structure, which is connected to the straight section 7 by a spring assembly 16. The circular elastic blade edge 15 is a welded steel structure that can press against the upper plane of the water-sealed coal charging hole seat 2 to form a seal. The upper flange 6 is used to connect with the coal charging car.

[0036] See attached document Figure 7 and 8 The water-sealed coal charging hole seat 2 is an integral casting with its bottom embedded in the furnace top refractory 5. It includes a water tank 12, an inner cylinder 13, and a connecting structure 14 that cooperates with the water tank. The water tank 12 can form a socket water seal with the water seal ring 10 in the water-sealed coal charging guide sleeve 1. In this embodiment, the upper flat part of the inner cylinder 13 can be sealed by pressing against the circular elastic blade edge 15 in the water-sealed coal charging guide sleeve 1, and the conical part can be sealed by contacting the bottom of the coal charging hole cover 3.

[0037] In this embodiment, when no coal is being loaded, the coal loading hole cover 3 is installed on the water-sealed coal loading hole seat 2 to seal the coal loading hole of the normal coking and carbonization chamber. During the coal loading operation, the coal loading car opens the coal loading hole cover 3, the water-sealed coal loading guide sleeve 1 falls, and the circular elastic blade 15 presses against the upper plane of the water-sealed coal loading hole seat to form a seal. At the same time, the water seal ring 10 penetrates into the water tank 12 of the water-sealed coal loading hole seat 2 to form a water seal, thereby achieving a sealing and isolation at the coal loading hole of the coal carbonization chamber and preventing the smoke and dust at the coal loading hole from overflowing during the coal loading operation.

[0038] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A top-loading coke oven water-sealed coal charging device, comprising a water-sealed coal charging guide sleeve (1), a water-sealed coal charging hole seat (2), a coal charging hole cover (3), and a connecting water tank (4), characterized in that: The water-sealed coal charging guide sleeve (1) consists of an upper flange (6), a straight section (7), a lower flange (8), a water seal ring (10), and a bottom guide sleeve (17). The water-sealed coal charging hole seat (2) consists of a water tank (12), an inner cylinder (13), and a connecting structure (14). The bottom guide sleeve (17) and the inner cylinder (13) contact each other to form a steel-to-steel seal. The water seal ring (10) and the water tank (12) can form a water seal. The connecting water tank (4) connects multiple water-sealed coal charging hole seats (2) by bolts.

2. The top-loading coke oven water-sealed coal charging device according to claim 1, characterized in that: The water tank (12) of the water-sealed coal charging hole seat (2) is circular, with the inner edge higher than the outer edge.

3. The top-loading coke oven water-sealed coal charging device according to claim 1, characterized in that: In the water-sealed coal charging guide sleeve (1), the bottom guide sleeve (17) and the water seal ring (10) are connected to the straight section (7) by detachable flanges.

4. A top-loading coke oven water-sealed coal charging device according to claim 1, characterized in that: The cross section of the connecting water tank (4) is U-shaped.

5. A top-loading coke oven water-sealed coal charging device according to claim 1, characterized in that: The bottom guide sleeve (17) in the water-sealed coal charging guide sleeve (1) that contacts the water-sealed coal charging hole seat (2) is a spherical guide sleeve (11) structure.

6. A top-loading coke oven water-sealed coal charging device according to claim 1, characterized in that: The bottom guide sleeve (17) in the water-sealed coal charging guide sleeve (1) that contacts the water-sealed coal charging hole seat (2) has a circular elastic knife edge (15) structure.

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