Coal charging guide sleeve for scattered falling of coal of top-charging coke oven

Abstract

The utility model relates to a coaling guide sleeve for scattered falling of coal of a top-charging coke oven, and belongs to the technical field of coaling of coke ovens in the metallurgical industry. According to the technical scheme, the material distributing device comprises an inner sleeve (1), a middle sleeve (2), an outer sleeve (3), a material distributing pipe (4), undercarriages (5), material distributing holes (7) and material distributing blocks (8), the inner sleeve (1), the middle sleeve (2) and the outer sleeve (3) are sleeved together, the inner sleeve (1) is a discharging pipe connected with a feeder, the undercarriages (5) are arranged on the middle sleeve (2) and the outer sleeve (3) respectively, the outer sleeve (3) is connected with the material distributing pipe (4), and the material distributing blocks (8) are connected with the material distributing holes (7). The size of the material distributing pipe (4) is matched with that of a coke oven coal charging hole (9), two material distributing holes (7) which are symmetrically arranged in the radial direction are formed in the bottom of the material distributing pipe (4), and a material distributing block (8) is arranged between the two material distributing holes (7). The coal charging hole has the beneficial effects that coal is prevented from being concentrated below the coal charging hole to form a higher coal peak, so that the density of a coal pile is more uniform, and the quality of coke is improved.

Description

Technical Field

[0001] The utility model relates to a coal charging guide sleeve for the decentralized falling of coal charge in a top charging coke oven, belonging to the technical field of coke oven coal charging in the metallurgical industry. Background Technique

[0002] During the production process of a top charging coke oven, the coal charging car takes coal from the coal tower and loads it into the coal hopper. The coal is fed through a screw feeder at the lower part of the coal hopper, and the coal enters the carbonization chamber through the coal charging guide sleeve from the coal charging hole. Generally, four coal charging holes are arranged along the length direction at the top of each carbonization chamber of the top charging coke oven. The structure and layout form of the coal charging holes will affect the uniformity of the longitudinal and heightwise distribution of the coal charge in the carbonization chamber. When charging coal, the coal charge will concentrate below the coal charging hole to form a coal peak. If the coal leveling is too early, the low-speed coal feeding time of the screw feeder is relatively long, and the bulk density of the coal charge is small, which affects the quality of coke. If the coal leveling is too late, the effects of leveling and compaction cannot be achieved, resulting in too high a coal peak and blocking the coal charging hole, and the coal cannot be charged. These problems do not meet the requirements of coke oven coal charging for filling, compacting, leveling, and equalizing the coal charge. Content of the Utility Model

[0003] The purpose of the utility model is to provide a coal charging guide sleeve for the decentralized falling of coal charge in a top charging coke oven, which can avoid the formation of a relatively high coal peak by the concentration of coal charge below the coal charging hole, make the bulk density of the coal charge more uniform, improve the quality of coke, and solve the problems existing in the background technique.

[0004] The technical solution of the utility model is as follows:

[0005] A coal charging guide sleeve for the decentralized falling of coal charge in a top charging coke oven includes an inner sleeve, a middle sleeve, an outer sleeve, a distributing pipe, a landing gear, distributing holes, and a distributing block. The inner sleeve, the middle sleeve, and the outer sleeve are sleeved together. The inner sleeve is a feeding pipe connected to the feeder. Landing gears are respectively arranged on the upper parts of the middle sleeve and the outer sleeve. The outer sleeve is connected to the distributing pipe. The size of the distributing pipe matches the size of the coke oven coal charging hole. Two radially symmetrically arranged distributing holes are provided at the bottom of the distributing pipe, and a distributing block is arranged between the two distributing holes.

[0006] The two radially symmetrically arranged distributing holes at the bottom of the distributing pipe are inclined semi-elliptical.

[0007] The included angle between the cross-section of the two radially symmetrically arranged distributing holes at the bottom of the distributing pipe and the axis of the distributing pipe is 30° - 60°.

[0008] The cross-section of the distributing block between the two distributing holes is an isosceles triangle.

[0009] The two ends of the distributing block between the two distributing holes are respectively fixedly connected to the distributing pipe.

[0010] The outer sleeve and the distributing pipe are connected through a connecting flange.

[0011] One end of the outer sleeve in contact with the connecting flange is provided with a sealing ring adapted to the coal charging hole of the coke oven.

[0012] The beneficial effects of the present utility model are as follows: the coal material can be shunted and fall through the distribution pipe, and is evenly distributed longitudinally and vertically in the carbonization chamber, avoiding the formation of a relatively high coal peak due to the concentration of the coal material below the coal charging hole, making the bulk density of the coal material relatively uniform, and improving the quality of coke. Description of the Drawings

[0013] Figure 1 It is a front structural schematic diagram of the present utility model;

[0014] Figure 2 It is a side structural schematic diagram of the distribution pipe of the present utility model entering the coal charging hole;

[0015] Figure 3 It is a three-dimensional structural schematic diagram of the distribution pipe of the present utility model;

[0016] In the figure: inner sleeve 1, middle sleeve 2, outer sleeve 3, distribution pipe 4, landing gear 5, sealing ring 6, distribution hole 7, distribution block 8, coal charging hole 9, sealing ring 10, coal charging inclined surface 11, carbonization chamber 12, connecting flange 13. Detailed Embodiment

[0017] The following further illustrates the present utility model through examples in conjunction with the drawings.

[0018] Referring to the attached Figures 1-3 , a coal charging guide sleeve for the top charging coke oven with the coal material dispersedly falling, comprising an inner sleeve 1, a middle sleeve 2, an outer sleeve 3, a distribution pipe 4, a landing gear 5, a distribution hole 7 and a distribution block 8. The inner sleeve 1, the middle sleeve 2 and the outer sleeve 3 are sleeved together. The inner sleeve 1 is a feeding pipe connected to the feeder. Landing gears 5 are respectively arranged on the upper parts of the middle sleeve 2 and the outer sleeve 3. The outer sleeve 3 is connected to the distribution pipe 4. The size of the distribution pipe 4 matches the size of the coal charging hole 9 of the coke oven. Two distribution holes 7 arranged radially symmetrically are provided at the bottom of the distribution pipe 4, and a distribution block 8 is arranged between the two distribution holes 7.

[0019] In this embodiment, referring to the attached Figures 1-3 , the inner sleeve 1, the middle sleeve 2, the outer sleeve 3 and the distribution pipe 4 are all circular cylinders. The inner sleeve 1 is connected below the discharging port of the screw feeder. The middle sleeve 2 is vertically and movably sleeved outside the inner sleeve 1. Two landing gears 5 are radially symmetrically arranged on the upper part of the middle sleeve 2. The outer sleeve 3 is vertically and movably sleeved outside the middle sleeve 2. Two landing gears 5 are radially symmetrically arranged on the upper part of the outer sleeve 3. The middle sleeve 2 and the outer sleeve 3 can be independently vertically moved up and down by driving the landing gears 5 by a hydraulic cylinder.

[0020] The outer diameter of the material distribution pipe 4 is smaller than the inner diameter of the coal charging hole 9. The material distribution pipe 4 is connected to the outer sleeve pipe 3 through the connecting flange 13. The material distribution pipe 4 can move vertically up and down with the outer sleeve pipe 3, and the material distribution pipe 4 can enter the coal charging hole 9. A sealing ring 6 is provided below the connecting flange 13 at the top of the material distribution pipe 4. After the material distribution pipe 4 completely enters the coal charging hole 9, the sealing ring 6 contacts and seals with the sealing ring 10 at the top of the coal charging hole 9.

[0021] Two radially symmetric material distribution holes 7 are provided in the lower part of the material distribution pipe 4. The material distribution holes 7 are inclined semi-elliptical shapes, and the cross-section of the material distribution holes 7 forms an angle of 30° to 60° with the axis of the material distribution pipe 4. The opening direction of the material distribution holes 7 is consistent with the long direction of the coking chamber 12.

[0022] A material distribution block 8 is provided between the two material distribution holes 7 at the bottom end of the material distribution pipe 4. The two ends of the material distribution block 8 are welded to the material distribution pipe 4. The cross-section of the material distribution block 8 is an isosceles triangle, and the two isosceles surfaces of the material distribution block 10 are respectively parallel to the two coal charging inclined surfaces 11, forming two coal feeding channels.

[0023] Refer to the appendix Figures 1-3 , before coal charging, the coal charging vehicle is aligned with the coking chamber to be charged. Driven by the hydraulic cylinder, the middle sleeve pipe 2 and the outer sleeve pipe 3 reach the lower limit position respectively with the landing gear 5, and at the same time, the material distribution pipe 4 completely enters the corresponding coal charging hole 9; during coal charging, the coal material in the coal hopper of the coal charging vehicle is fed by the screw feeder, and the coal material falls along the guide sleeve and is divided by the material distribution block 8 at the bottom end of the material distribution pipe 4 and flows into the coking chamber 12 from the two coal feeding channels on both sides; after coal charging is completed, driven by the hydraulic cylinder, the middle sleeve pipe 2 and the outer sleeve pipe 3 reach the upper limit position respectively with the landing gear 5, and at the same time, the material distribution pipe 4 is lifted and completely separated from the coal charging hole 9.

Claims

1. A coal charging guide sleeve for the top charging coke oven with dispersed falling of coal charge, characterized in that: It includes an inner sleeve (1), a middle sleeve (2), an outer sleeve (3), a material distributing pipe (4), a landing gear (5), a material distributing hole (7) and a material distributing block (8). The inner sleeve (1), the middle sleeve (2) and the outer sleeve (3) are sleeved together. The inner sleeve (1) is a blanking pipe connected to a feeder. Landing gears (5) are respectively arranged on the upper parts of the middle sleeve (2) and the outer sleeve (3). The outer sleeve (3) is connected to the material distributing pipe (4). The size of the material distributing pipe (4) matches the size of the coal charging hole (9) of the coke oven. Two radially symmetrically arranged material distributing holes (7) are provided at the bottom of the material distributing pipe (4), and a material distributing block (8) is arranged between the two material distributing holes (7).

2. The coal charging guide sleeve for the top-charging coke oven with dispersed falling of coal charge according to claim 1, characterized in that: The two radially symmetrically arranged material distributing holes (7) at the bottom of the material distributing pipe (4) are inclined semi-elliptical shapes.

3. The coal charging guide sleeve for the top-charging coke oven with the dispersed falling of coal charge according to claim 2, characterized in that: The included angle between the cross-section of the two radially symmetrically arranged material distributing holes (7) at the bottom of the material distributing pipe (4) and the axis of the material distributing pipe (4) is 30° to 60°.

4. A coal charging guide sleeve for the decentralized falling of coal charge in a top-loading coke oven according to claim 1, characterized in that: The cross-section of the material distributing block (8) between the two material distributing holes (7) is an isosceles triangle.

5. The coal charging guide sleeve for dispersed falling of coal charge in a top-loading coke oven according to claim 4, characterized in that: Both ends of the material distributing block (8) between the two material distributing holes (7) are fixedly connected to the material distributing pipe (4) together.

6. The coal charging guide sleeve for the top charging coke oven with the coal charge dispersedly falling is characterized in that: The outer sleeve (3) and the material distributing pipe (4) are connected through a connecting flange (13).

7. The coal charging guide sleeve for the top charging coke oven with dispersed falling of coal charge, characterized in that: A sealing ring (6) matching the coal charging hole (9) of the coke oven is provided at one end of the outer sleeve (3) abutting against the connecting flange (13).

Images