Air distribution system of blast furnace blower

Abstract

The utility model provides a blast furnace blower air distribution system which comprises a blast furnace blower, the outlet end of the blast furnace blower is respectively connected with a blast furnace production air supply path and a diffusion air path, and the diffusion air path is connected with a low-pressure air supply path; according to the method, the air volume diffused by the blast furnace blower is applied to the low-pressure air separation user side, waste caused by original high-pressure air separation pressure reduction is replaced, the original diffused part of the blast furnace blower is reused, waste of the blast furnace blower is avoided, the compressed air supply load of an air compressor station is reduced, energy is saved, and the cost is reduced. The system fully considers the operation characteristics and rules of equipment at two ends of the process, the maximum available degree of the emptying air volume is adjusted by using technical means, and the production benefit is further improved.

Description

Technical Field

[0001] This utility model relates to the field of air supply for blast furnace blowers, and in particular to a blast furnace blower air distribution system. Background Technology

[0002] In the ironmaking process, the air supply required for blast furnace production is provided by the blast furnace blower. The air supply required for blast furnace production is limited, while the air volume generated by the blast furnace blower is often too large. Therefore, in order to ensure safe production, some of the compressed air generated by the blast furnace blower needs to be released, which results in a certain amount of waste.

[0003] In the entire main production facilities and auxiliary production facilities, there are many equipment that require compressed air, such as the dust collector backflushing system at each process position, the hot air furnace pressure equalization system, and other related compressed air users. These air supply scenarios usually require separate air compressor stations to supply air, resulting in a large compressed air supply load.

[0004] If the compressed air released by the blast furnace blower for ensuring safe production can be collected and used at the low-pressure end of the compressed air supply, it will not only avoid the waste of the air released by the blast furnace blower, but also reduce the compressed air supply load of the air compressor station and save energy.

[0005] Based on this, this application proposes a blast furnace blower air steering system. Utility Model Content

[0006] The purpose of this invention is to provide a blast furnace blower air guiding system to solve the problems existing in the prior art.

[0007] To achieve the above objectives, this utility model provides the following solution:

[0008] This utility model provides a blast furnace blower air distribution system, including a blast furnace blower. The outlet end of the blast furnace blower is connected to the blast furnace production air supply path and the venting air path, respectively. The venting air path is connected to the low-pressure air supply path.

[0009] Preferably, the blast furnace production air supply path is connected to the blast furnace hot blast stove.

[0010] Preferably, a silencer is provided on the venting air path.

[0011] Preferably, the low-pressure air supply line is provided with a manual valve, a flow regulating valve, a check valve and an electric valve in sequence.

[0012] Preferably, a flow meter is provided between the one-way valve and the electric valve.

[0013] The present invention achieves the following beneficial technical effects compared to the prior art:

[0014] This utility model provides a blast furnace blower air distribution system, including a blast furnace blower. The outlet end of the blast furnace blower is connected to the blast furnace production air supply path and the venting air path, respectively. The venting air path is connected to the low-pressure air supply path. By using the venting air volume of the blast furnace blower at the low-pressure air separation user end, replacing the waste of the original high-pressure air separation pressure reduction, the original venting part of the blast furnace blower is reused. This not only avoids the waste of the blast furnace blower, but also reduces the compressed air supply load of the air compressor station, saving energy. The system fully considers the operating characteristics and laws of the equipment at both ends of the process, and uses technical means to adjust the maximum usability of the venting air volume, further improving production efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the air-guiding system of a blast furnace blower provided by this utility model. Detailed Implementation

[0017] 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.

[0018] The purpose of this invention is to provide a blast furnace blower air guiding system to solve the problems existing in the prior art.

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Example 1:

[0021] This embodiment provides a blast furnace blower air-dispersing system, such as... Figure 1 As shown, it includes a blast furnace blower 1, the outlet end of which is connected to the blast furnace production air supply path 2 and the venting air path 3, respectively, and the venting air path 3 is connected to the low-pressure air supply path 4.

[0022] In one implementation method, the blast furnace production air supply path 2 is connected to the blast furnace hot blast stove 5, and its air supply method is basically the same as that of a conventional blast furnace.

[0023] As one implementation method, a silencer 6 is provided on the venting air path 3 to reduce noise pollution during the venting process.

[0024] As one implementation method, the low-pressure air supply circuit 4 is equipped with a manual valve 7, a flow regulating valve 8, a one-way valve 9 and an electric valve 10 in sequence. Through the control of each valve system, the venting air can be effectively used for low-pressure air supply, thereby realizing the full utilization of resources.

[0025] As one implementation method, a flow meter 11 is provided between the one-way valve 9 and the electric valve 10, which can clearly understand the flow rate of the low-pressure air supply, providing a basis and guarantee for control.

[0026] This utility model provides a blast furnace blower air distribution system. By calculating the air production, air output, and venting volume of the blast furnace blower 1, and evaluating factors such as the safety of the anti-surge valve, the balance of venting volume, and the pressure balance of the user network, the system controls the venting air path 3 to supply air to the low-pressure air supply path 4. This allows the venting air volume of the blast furnace blower to be used at the low-pressure air separation user end, replacing the waste of the original high-pressure air separation pressure reduction. The original venting portion of the blast furnace blower is reused, which avoids the waste of the blast furnace blower, reduces the compressed air supply load of the air compressor station, and saves energy.

[0027] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A blast furnace blower air distribution system, comprising a blast furnace blower, characterized in that: The outlet end of the blast furnace blower is connected to the blast furnace production air supply path and the venting air path, respectively, and the venting air path is connected to the low-pressure air supply path.

2. The blast furnace blower air distribution system according to claim 1, characterized in that: The blast furnace production air supply path is connected to the blast furnace hot blast stove.

3. The blast furnace blower air distribution system according to claim 1, characterized in that: A silencer is installed on the venting air path.

4. The blast furnace blower air-dispersing system according to claim 1, characterized in that: The low-pressure air supply line is equipped with a manual valve, a flow regulating valve, a check valve, and an electric valve in sequence.

5. The blast furnace blower air-dispersing system according to claim 4, characterized in that: A flow meter is provided between the one-way valve and the electric valve.

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