Sealing device for ferronickel production roasting kiln

Abstract

The utility model belongs to the technical field of ferronickel production equipment, and particularly relates to a sealing device for a ferronickel production roasting kiln, which comprises a kiln head cover and a drying kiln cylinder, the kiln head cover is rotatably sleeved at one end of the drying kiln cylinder, and a gap wind shield is arranged between the drying kiln cylinder and the inner wall of the kiln head cover. According to the utility model, the original fish scale steel plate is detached, the fixed wind-shielding gap plate ring of the kiln head and the kiln tail cover is manufactured according to on-site ruler measurement, and the fixed wind-shielding gap plate ring is arranged on the main body of the kiln head and the kiln tail to ensure that the fixed wind-shielding gap plate ring is not abraded during sealing rotation, and then a waste belt replaced by a belt conveyor is blanked into a block shape according to a certain size; the waste belts are arranged on the wind shielding gap plate through bolts in a mutual stacking mode, the waste belts are made of plastic rubber, the barrel body is not abraded, meanwhile, the sealing effect can be achieved, compared with fish scales, replacement is easier, high spare part purchasing and replacement cost does not exist, only waste needs to be reutilized, cost is saved, and the service life of the barrel body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of nickel-iron production equipment, in particular to a sealing device for a nickel-iron production roasting kiln. Background Art

[0002] Most of the nickel-iron alloy production processes consist of two steps. The first step is to pre-sinter the laterite nickel ore raw material at 1000 - 1200 °C using a roasting kiln, and the second step is to enter a submerged arc furnace to produce the finished product. That is, the roasting kiln is an important device for nickel-iron smelting using laterite nickel ore. During the production operation, the roasting kiln needs to rotate continuously and be in a high-temperature heating state.

[0003] However, the original fish-scale sealing device for the roasting kiln is made of steel material. It is installed on the kiln hood at the kiln head and kiln tail. One end of it is attached to the rotating cylinder body and is tightened by a steel wire rope around the whole circle to play a sealing role. Under this action, the fish scales are in contact with the rotating cylinder body for a long time and wear, resulting in the fish scales being replaced regularly by workers. At the same time, under the sealing constraint, there is also wear between the fish scales and the cylinder body, causing the machine repairman to require the kiln to stop production for maintenance of the cylinder body, which directly affects the production. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problem that the fish-scale sealing device for the roasting kiln in the above background art is made of steel material, and the fish scales are in contact with the rotating cylinder body for a long time and wear, resulting in the fish scales being replaced regularly by workers, and to propose a sealing device for a nickel-iron production roasting kiln.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A sealing device for a nickel-iron production roasting kiln, including a kiln head hood and a drying kiln cylinder body. The kiln head hood is rotatably sleeved on one end of the drying kiln cylinder body. A gap wind baffle is arranged between the inner wall of the drying kiln cylinder body and the kiln head hood. A through hole corresponding to the drying kiln cylinder body is arranged on the gap wind baffle. One end of the gap wind baffle is fixedly connected to the kiln head hood, and a plurality of sealing strips are fixedly connected to the end of the gap wind baffle far away from the kiln head hood.

[0007] Preferably, the gap wind baffle and the kiln head hood are fixedly connected by a plurality of first fastening bolts.

[0008] Preferably, the sealing strips and the gap wind baffle are fixedly connected by a plurality of second fastening bolts.

[0009] Preferably, a plurality of the sealing strips are arranged in an octagonal equal division annular shape.

[0010] Preferably, the sealing strips are made of waste belts.

[0011] Preferably, the gap wind baffle is made of waste fish-scale steel plates.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] In the utility model, the original fish scale steel plates are removed, and the fixed windproof gap plate rings at the head and tail of the kiln are manufactured according to on-site measurement, and installed on the main body at the head and tail of the kiln to ensure that they are not worn during sealing rotation. Then, the waste belts replaced by the conveyor belt are cut into long blocks according to a certain size, and then installed on the windproof gap plates in a mutually overlapping manner with bolts. The waste belt material is plastic glue type, which has no wear on the cylinder body, and at the same time can play a sealing role. Compared with the replacement of fish scales, it is simpler, there is no high spare part procurement and replacement cost, only the secondary utilization of waste is required, which saves costs and increases the service life of the cylinder body. Description of the Drawings

[0014] Figure 1 FIG. is a schematic structural diagram of a sealing device for a nickel-iron production roasting kiln proposed by the utility model;

[0015] Figure 2 is Figure 1 a schematic structural diagram of part A in;

[0016] Figure 3 FIG. is a front view structural diagram of the discharge end of the drying kiln proposed by the utility model.

[0017] In the figure: 1 kiln head cover, 2 drying kiln cylinder body, 3 gap windproof plate, 4 sealing strip, 5 first fastening bolt, 6 second fastening bolt. Detailed Embodiment

[0018] Hereinafter, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0019] Referring to Figures 1 - 3 , a sealing device for a nickel-iron production roasting kiln includes a kiln head cover 1 and a drying kiln cylinder body 2. The kiln head cover 1 is rotatably sleeved at one end of the drying kiln cylinder body 2. A gap windproof plate 3 is provided between the inner wall of the drying kiln cylinder body 2 and the kiln head cover 1 for windproofing. The gap windproof plate 3 is made of waste fish scale steel plates;

[0020] In this embodiment, the gap windproof plate 3 is provided with a through hole corresponding to the drying kiln cylinder body 2. One end of the gap windproof plate 3 is fixedly connected to the kiln head cover 1, and the gap windproof plate 3 and the kiln head cover 1 are fixedly connected by a plurality of first fastening bolts 5, which is convenient for fixing and disassembling the gap windproof plate 3;

[0021] In this embodiment, a plurality of sealing strips 4 are fixedly connected to one end of the gap windshield 3 away from the kiln head hood 1 to play a sealing role. The sealing strips 4 and the gap windshield 3 are fixedly connected by a plurality of second fastening bolts 6;

[0022] In this embodiment, the plurality of sealing strips 4 are arranged in an octagonal ring. The sealing strips 4 are made of waste belts to reduce the wear on the drying kiln cylinder 2.

[0023] In this embodiment, by removing the original fish-scale steel plates, the fixed gap windshield 3 of the kiln head and kiln tail hoods is fabricated according to on-site measurement and installed on the main bodies of the kiln head and kiln tail to ensure that it is not worn during sealing rotation. Then, the waste belts replaced from the conveyor belt are cut into long blocks according to a certain size and installed on the gap windshield 3 in a mutually overlapping manner using bolts. The waste belt material is of the plastic glue type, which causes no wear to the cylinder body and can also play a sealing role. Here, compared with the replacement of fish scales, it is simpler, there is no high spare part procurement and replacement cost, only the secondary utilization of waste is required, saving costs and increasing the service life of the cylinder body.

[0024] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent replacements or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A sealing device for a ferronickel production roasting kiln, comprising a kiln head cover (1) and a drying kiln cylinder (2), characterized in that: The kiln head cover (1) is rotatably sleeved on one end of the drying kiln cylinder (2); a gap windshield (3) is provided between the drying kiln cylinder (2) and the inner wall of the kiln head cover (1); a through opening corresponding to the drying kiln cylinder (2) is provided on the gap windshield (3); one end of the gap windshield (3) is fixedly connected to the kiln head cover (1); and one end of the gap windshield (3) away from the kiln head cover (1) is fixedly connected to a plurality of sealing strips (4).

2. A sealing device for a ferronickel production roasting kiln according to claim 1, characterized in that: The gap wind shield plate (3) and the kiln head cover (1) are fixedly connected via a plurality of first fastening bolts (5).

3. A sealing device for a ferronickel production roasting kiln according to claim 1, characterized in that: The sealing strip (4) and the gap wind shield plate (3) are fixedly connected via a plurality of second fastening bolts (6).

4. A sealing device for a ferronickel production roasting kiln according to claim 1, characterized in that: The plurality of sealing strips (4) are arranged in an octave-divided ring shape.

5. A sealing device for a ferronickel production roasting kiln according to claim 1, characterized in that: The sealing strip (4) is made of waste belts.

6. A sealing device for a ferronickel production roasting kiln according to claim 1, characterized in that: The gap wind shield (3) is made of discarded fish scale steel plate.

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