Feeding device

Abstract

The utility model relates to a feeding device, and relates to the technical field of steelmaking converters, the feeding device comprises a wear-resistant barrel fixedly connected to a converter, a plurality of cooling pipes are arranged on the wear-resistant barrel in a penetrating and fixedly connected mode, the length direction of the cooling pipes is parallel to the axis direction of the wear-resistant barrel, the cooling pipes are arranged around the axis of the wear-resistant barrel, and the wear-resistant barrel is fixedly connected with the wear-resistant barrel. The upper end of the wear-resistant cylinder is fixedly connected with an upper header, the lower end of the wear-resistant cylinder is fixedly connected with a lower header, one end of the cooling pipe is fixedly connected and communicated with the upper header, and the other end of the cooling pipe is fixedly connected and communicated with the lower header. The batching device further comprises a water supply assembly used for supplying water into the cooling pipe. The burdening device has the effects of improving the wear resistance of the wear-resistant layer and prolonging the service life of the burdening device.

Description

Technical Field

[0001] This application relates to the technical field of steelmaking converters, and in particular to a feeding device. Background Technology

[0002] Converter steelmaking is mainly used for the production of carbon steel, alloy steel, and the smelting of copper and nickel, and is an indispensable part of modern steel production.

[0003] During the converter smelting process, various bulk materials are added to the converter from the high-level silo. This requires openings in the side wall on the upper side of the converter, and feeding devices such as chutes are installed at these openings. The materials enter the converter through these feeding devices. However, in actual production, the operating temperature of the feeding chute can reach very high levels and fluctuates periodically. The materials added at this time are mostly hard materials such as alloys, recycled ore, and scrap steel, which will continuously wear down the inner surface of the chute. Although a wear-resistant layer is usually installed to resist the wear of the materials, the wear-resistant layer is constantly impacted and worn by the materials under high temperature conditions, and under the influence of multiple factors such as thermal fatigue, the life of the wear-resistant layer is greatly reduced, causing frequent water leakage in the feeding chute, which can easily lead to safety accidents. Utility Model Content

[0004] In order to improve the wear resistance of the wear-resistant layer and increase the service life of the batching device, this application provides a feeding device.

[0005] The feeding device provided in this application adopts the following technical solution:

[0006] A feeding device includes a wear-resistant cylinder fixed to a converter. Multiple cooling pipes are threaded through and fixedly connected to the wear-resistant cylinder. The length direction of each cooling pipe is parallel to the axial direction of the wear-resistant cylinder. The cooling pipes are arranged around the axial direction of the wear-resistant cylinder. An upper header is fixedly connected to the upper end of the wear-resistant cylinder, and a lower header is fixedly connected to the lower end of the wear-resistant cylinder. One end of each cooling pipe is fixedly connected to and communicates with the upper header, and the other end of each cooling pipe is fixedly connected to and communicates with the lower header. The feeding device also includes a water supply component for supplying water to the cooling pipes.

[0007] By adopting the above technical solution, cold water can be added to the lower header through the water supply component. The cold water then rises along the cooling pipes, evenly distributing it across all cooling sleeves. Simultaneously, the cooling water cools the wear-resistant cylinder as it flows within the cooling sleeves. The cooling water is then collected in the upper header and discharged through the water supply component. This process cools the wear-resistant cylinder in the batching device, controlling the material temperature and ensuring its wear resistance and high-temperature resistance. It also reduces thermal stress on the wear-resistant cylinder, extends the service life of the batching device, lowers the accident rate, and improves the batching device's adaptability to various hard materials.

[0008] Optionally, the water supply assembly includes a first inlet pipe fixedly connected to and communicating with the lower header, and a first outlet pipe fixedly connected to and communicating with the upper header.

[0009] By adopting the above technical solution, water can be directly input into the lower header by setting a first water inlet pipe through the first water inlet pipe.

[0010] Optionally, the water supply assembly includes a second water inlet pipe, which passes through the wear-resistant cylinder body. The inlet end of the second water inlet pipe is located at the upper header, and the other end of the second water inlet pipe is fixedly connected to and communicates with the lower header. A second water outlet pipe is fixedly connected to and communicates with the upper header.

[0011] By adopting the above technical solution, when it is inconvenient to install the water inlet pipe at the lower end of the wear-resistant cylinder, the second water inlet pipe can be inserted into the wear-resistant cylinder, thereby allowing water to be transported to the lower manifold through the second water inlet pipe from the upper part of the wear-resistant cylinder.

[0012] Optionally, the lower part of the cooling pipe is exposed outside the wear-resistant cylinder body, and a first wear-resistant block is fixed to the arc-shaped sidewall of the cooling pipe exposed outside the wear-resistant cylinder body.

[0013] By adopting the above technical solution, since the impact force of the material on the bottom of the wear-resistant cylinder is relatively small, setting wear-resistant blocks at the bottom of the outer sleeve can save most of the cost while achieving good protection.

[0014] Optionally, the first wear-resistant block is provided in multiple ways, and the multiple first wear-resistant blocks are arranged at equal intervals along the length of the cooling pipe.

[0015] By adopting the above technical solution, the first wear-resistant blocks, which are equidistant along the length of the cooling pipe, can achieve a better protective effect.

[0016] Optionally, the lower header is configured as an annular shape, and a second wear-resistant block is fixedly connected to the inner arc surface of the lower header.

[0017] By adopting the above technical solution, the inner arc surface of the lower manifold can be protected by the second wear-resistant block.

[0018] Optionally, the upper header is provided with a connecting flange on the side away from the wear-resistant cylinder, and the upper header is fixed to the wear-resistant cylinder through the connecting flange.

[0019] By adopting the above technical solution, the connection between the wear-resistant cylinder and the upper header can be achieved through the connecting flange, which also provides protection for the upper header.

[0020] Optionally, the cooling pipe can be made of seamless steel pipe.

[0021] By adopting the above technical solutions, seamless steel pipes have high strength and rigidity, can withstand greater pressure, and have strong high-temperature resistance.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. It can make cold water fill all the cooling sleeves, and the cooling water will cool down the wear-resistant cylinder during the flow of the cooling sleeves, control the material temperature, thereby ensuring the wear resistance and high temperature resistance of the wear-resistant cylinder, and also reducing the thermal stress of the wear-resistant cylinder and improving the service life of the batching device.

[0024] 2. By installing wear-resistant blocks at the bottom of the outer sleeve, a significant portion of the cost can be saved while still providing good protection;

[0025] 3. When it is inconvenient to install the water inlet pipe at the lower end of the wear-resistant cylinder, the second water inlet pipe can be inserted into the wear-resistant cylinder, thereby allowing water to be transported to the lower manifold through the upper part of the wear-resistant cylinder via the second water inlet pipe. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the present application;

[0027] Figure 2 This is a schematic diagram of the overall structure of Embodiment 2 of this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Wear-resistant cylinder; 2. Cooling pipe; 3. Upper header; 4. Lower header; 5. Water supply assembly; 51. First water inlet pipe; 52. First water outlet pipe; 53. Second water inlet pipe; 54. Second water outlet pipe; 6. First wear-resistant block; 7. Second wear-resistant block; 8. Connecting flange. Detailed Implementation

[0029] The following is combined with Figure 1 - Appendix Figure 2 This application is described in further detail.

[0030] Example 1

[0031] Reference Figure 1 A feeding device includes a wear-resistant cylinder 1 fixedly connected to a converter, the wear-resistant cylinder 1 being obliquely upward on the converter. Multiple cooling pipes 2 are threaded through and fixedly connected to the wear-resistant cylinder 1; in this embodiment, the cooling pipes 2 are seamless steel pipes. The multiple cooling pipes 2 are equidistantly arranged around the axis of the wear-resistant cylinder 1, and the length direction of the cooling pipes 2 is parallel to the axis of the wear-resistant cylinder 1.

[0032] The upper end of the wear-resistant cylinder 1 is provided with an upper header 3. A connecting flange 8 is provided on the side of the upper header 3 away from the wear-resistant cylinder 1, and the upper header 3 is fixed to the wear-resistant cylinder 1 via the connecting flange 8. A lower header 4 is fixedly connected to the lower end of the wear-resistant cylinder 1. Both the upper header 3 and the lower header 4 are annular and coaxially arranged with the wear-resistant cylinder 1. One end of the cooling pipe 2 is fixedly connected to and communicates with the upper header 3, and the other end of the cooling pipe 2 is fixedly connected to and communicates with the lower header 4.

[0033] The batching device also includes a water supply component 5 for supplying or discharging water into or from the cooling pipe 2.

[0034] In this embodiment, the water supply component 5 includes a first water inlet pipe 51 fixedly connected to and connected to the lower header 4, and a first water outlet pipe 52 fixedly connected to and connected to the upper header 3.

[0035] Thus, water can be directly input into the lower header 4 through the first water inlet pipe 51, and then the water will enter each cooling pipe 2 and rise along the cooling pipe 2 to the upper header 3.

[0036] To reduce the production cost of the batching device, the lower part of the cooling pipe 2 is exposed outside the wear-resistant cylinder 1. A first wear-resistant block 6 is fixedly connected to the arc-shaped side wall of the cooling pipe 2 exposed outside the wear-resistant cylinder 1. The first wear-resistant block 6 is located on the side of the cooling pipe 2 closest to the axis of the wear-resistant cylinder 1. Multiple first wear-resistant blocks 6 are provided, and the multiple first wear-resistant blocks 6 are equidistantly arranged along the length of the cooling pipe 2. At the same time, in order to reduce wear inside the lower header 4, a second wear-resistant block 7 is fixedly connected to the inner arc surface of the lower header 4. Multiple second wear-resistant blocks 7 are provided, and the multiple second wear-resistant blocks 7 are equidistantly arranged along the inner arc surface of the lower header 4.

[0037] Example 2

[0038] The difference from Example 1 is that: (Refer to...) Figure 2 In this embodiment, the water supply component 5 includes a second water inlet pipe 53, which is inserted into the wear-resistant cylinder 1 and is arranged along the length of the wear-resistant cylinder 1. The inlet end of the second water inlet pipe 53 is located at the upper header 3, and the other end of the second water inlet pipe 53 is fixedly connected to and communicates with the lower header 4. A second water outlet pipe 54 is fixedly connected to and communicates with the upper header 3.

[0039] Therefore, when it is inconvenient to install a water inlet pipe at the lower end of the wear-resistant cylinder 1, a second water inlet pipe 53 can be inserted into the wear-resistant cylinder 1, thereby allowing water to be transported to the lower manifold 4 through the upper part of the wear-resistant cylinder 1 via the second water inlet pipe 53.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A feeding device, characterized in that: The device includes a wear-resistant cylinder (1) fixed to the converter, with multiple cooling pipes (2) passing through and fixedly connected to the wear-resistant cylinder (1). The length direction of the cooling pipes (2) is parallel to the axial direction of the wear-resistant cylinder (1). The cooling pipes (2) are arranged around the axial direction of the wear-resistant cylinder (1). An upper header (3) is fixedly connected to the upper end of the wear-resistant cylinder (1), and a lower header (4) is fixedly connected to the lower end of the wear-resistant cylinder (1). One end of the cooling pipe (2) is fixedly connected to and communicates with the upper header (3), and the other end of the cooling pipe (2) is fixedly connected to and communicates with the lower header (4). The batching device also includes a water supply component (5) for supplying water to or discharging water from the cooling pipes (2).

2. The feeding device according to claim 1, characterized in that: The water supply assembly (5) includes a first inlet pipe (51) fixedly connected to and connected to the lower header (4), and a first outlet pipe (52) fixedly connected to and connected to the upper header (3).

3. The feeding device according to claim 1, characterized in that: The water supply assembly (5) includes a second water inlet pipe (53), which is installed inside the wear-resistant cylinder (1). The water inlet end of the second water inlet pipe (53) is located at the upper header (3), and the other end of the second water inlet pipe (53) is fixedly connected to and communicates with the lower header (4). A second water outlet pipe (54) is fixedly connected to and communicates with the upper header (3).

4. The feeding device according to claim 1, characterized in that: The lower part of the cooling pipe (2) is exposed outside the wear-resistant cylinder (1), and a first wear-resistant block (6) is fixed to the arc-shaped side wall of the cooling pipe (2) exposed outside the wear-resistant cylinder (1).

5. The feeding device according to claim 4, characterized in that: The first wear-resistant block (6) is provided in multiple ways, and the multiple first wear-resistant blocks (6) are equidistantly arranged along the length of the cooling pipe (2).

6. The feeding device according to claim 1, characterized in that: The lower header (4) is configured as an annular shape, and a second wear-resistant block (7) is fixedly connected to the inner arc surface of the lower header (4).

7. The feeding device according to claim 1, characterized in that: The upper header (3) is provided with a connecting flange (8) on the side away from the wear-resistant cylinder (1), and the upper header (3) is fixed to the wear-resistant cylinder (1) through the connecting flange (8).

8. The feeding device according to claim 1, characterized in that: The cooling pipe (2) is made of seamless steel pipe.

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