Vertical dust removal pipe with automatic dust removal function

By adding an inclined guide pipe in front of the dust removal valve to change the airflow path, the problem of dust accumulation in the dust removal pipeline of the steel plant was solved, enabling automatic cleaning of accumulated dust, maintaining efficient dust removal and low energy consumption operation, and extending the equipment life.

CN223832995UActive Publication Date: 2026-01-27LIUZHOU IRON & STEEL +1
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Patent Information

Application Number
CN202520094335.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-15
Publication Date
2026-01-27
Estimated Expiration
2035-01-15

AI Technical Summary

Technical Problem

In the dust removal pipelines of steel plants, dust accumulates in front of the dust removal valve due to gravity. The existing design cannot effectively prevent dust accumulation and leads to energy waste.

Method used

An inclined guide pipe is added in front of the dust removal valve to change the airflow path, so that the deposited dust and small particles are carried away by the airflow and carried away through the guide pipe, thus realizing automatic cleaning of accumulated dust.

Benefits of technology

Without increasing additional power consumption, it automatically cleans the dust accumulated in front of the dust removal valve, maintains efficient dust removal, ensures that the ventilation efficiency is not affected, extends the equipment life and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223832995U_ABST
Patent Text Reader

Abstract

The utility model discloses a vertical dust removal pipe with an automatic dust removal function, and relates to the technical field of dust removal devices. The dust removal device comprises a dust removal header pipe, a dust removal branch pipe which is perpendicular to the dust removal header pipe and internally communicated with the dust removal header pipe is arranged below the dust removal header pipe, and a dust removal valve is arranged on the dust removal branch pipe; inclined flow guide pipes are respectively arranged above the dust removal valve and on the two sides of the dust removal branch pipe, the upper ports of the flow guide pipes are connected to the dust removal main pipe, the lower ports of the flow guide pipes are connected to the dust removal branch pipe, and the interiors of the flow guide pipes are communicated with the interiors of the dust removal main pipe and the dust removal branch pipe. The utility model provides the vertical dust removal pipe with the automatic dust removal function, and the vertical dust removal pipe can automatically clean accumulated dust in front of a dust removal valve under the condition of not consuming extra electric energy, so that the problem of dust accumulation in front of the dust removal valve caused by original design errors of a dust removal pipeline of a steel plant is solved.
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Description

Technical Field

[0001] This utility model relates to the field of dust removal device technology, and in particular to a vertical dust removal pipe device. Background Technology

[0002] A key problem in the original design of dust collection ducts in steel plants was that many vertically arranged ducts mistakenly had their dust collector valves installed vertically as well. This caused a series of problems: when the dust collector valve was closed, heavier dust and particles would accumulate in front of the valve due to gravity, resulting in severe dust accumulation. Keeping the valve partially open to avoid dust accumulation, however, would lead to unnecessary energy waste.

[0003] Furthermore, the large diameter of dust collection ducts in steel plants further complicates the problem. While opening the dust collection valve to a smaller extent theoretically saves energy, it fails to effectively prevent dust blockage in front of the valve. Conversely, opening the valve to its maximum extent to ensure effective dust collection and maintaining continuous operation 24 hours a day results in enormous energy consumption.

[0004] In conclusion, this layout flaw in the original design not only affected the dust removal effect but also led to a significant waste of energy. Summary of the Invention

[0005] This utility model provides a vertical dust removal pipe with an automatic dust removal function. This vertical dust removal pipe can automatically clean the dust accumulation in front of the dust removal valve without consuming additional power, thereby solving the problem of dust accumulation in front of the dust removal valve in steel plants due to original design errors in the dust removal pipeline.

[0006] To solve the above problems, the technical solution adopted by this utility model is:

[0007] It includes a main dust collection pipe, below which is a dust collection branch pipe that is perpendicular to and internally connected to the main dust collection pipe, and a dust collection valve is provided on the dust collection branch pipe; above the dust collection valve, inclined guide pipes are provided on both sides of the dust collection branch pipe, the upper end of the guide pipe is connected to the main dust collection pipe, the lower end of the guide pipe is connected to the dust collection branch pipe, and the interior of the guide pipe is connected to the interior of the main dust collection pipe and the interior of the dust collection branch pipe.

[0008] A more specific technical solution than the above-mentioned technical solution could be that the guide pipes on both sides of the dust removal branch pipe are symmetrically distributed.

[0009] Furthermore, the lower edge of the lower port of the guide pipe is flush with the upper edge of the dust removal valve.

[0010] Furthermore, the guide tube is a square guide tube.

[0011] Furthermore, the included angle between the dust removal main pipe and the guide pipe is 30° to 40°.

[0012] Furthermore, the included angle between the dust removal main pipe and the guide pipe is 35°.

[0013] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0014] 1. This utility model introduces guide pipes on both sides of the dust removal branch pipe before the dust removal valve. When the dust removal valve is closed, the airflow that originally passed through the main dust removal pipe is guided into these guide pipes. This change in airflow path disturbs the dust and small particles deposited before the dust removal valve, preventing these particles from accumulating and instead entraining them with the airflow. Subsequently, they are smoothly carried away by the airflow through the guide pipe on the other side, thus achieving the purpose of automatically cleaning the dust accumulation before the dust removal valve without increasing additional power consumption. In addition, since the guide pipes are installed before the dust removal valve, they do not interfere with or obstruct the normal exhaust volume of the dust removal branch pipe when the dust removal valve is open, ensuring that the exhaust efficiency of the dust removal branch pipe is not affected while maintaining efficient dust removal.

[0015] 2. This utility model effectively eliminates the potential dust accumulation dead angle between the guide pipe and the dust removal valve by ensuring that the lower edge of the lower port of the guide pipe is flush with the upper edge of the dust removal valve. This avoids the problem of dust accumulation caused by the existence of dead angles, thereby ensuring its cleaning efficiency and effect, extending the service life of the dust removal valve and related components, and also reducing maintenance costs and workload.

[0016] 3. By limiting the flow guide tube to a square shape, this utility model not only further prevents the existence of dead corners between the flow guide tube and the dust removal valve, but also the square design of the flow guide tube allows the airflow to cover the entire connection interface more evenly when passing through, ensuring that the dust and small particles deposited in front of the dust removal valve can be fully disturbed and carried away by the airflow, thus avoiding the problem of dust accumulation caused by dead corners.

[0017] 4. The angle between the dust removal main pipe and the guide pipe of this utility model is limited to 30° to 40°, which ensures that the airflow passing through the guide pipe has sufficient power and directionality to effectively remove the dust and small particles deposited in front of the dust removal valve. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2This is a cross-sectional view of the present invention taken along the vertical centerline of the dust removal branch pipe.

[0020] Figures 1-2 In the diagram, 1 is the main dust removal pipe, 2 is the branch dust removal pipe, 3 is the dust removal valve, and 4 is the guide pipe. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings. Example

[0022] like Figure 1-2 As shown, a vertical dust removal pipe with automatic dust removal function includes a dust removal main pipe 1, a dust removal branch pipe 2 that is perpendicular to and internally connected to the dust removal main pipe 1, and a dust removal valve 3 on the dust removal branch pipe 2; above the dust removal valve 3, inclined guide pipes 4 are respectively provided on both sides of the dust removal branch pipe 2, the upper end of the guide pipe 4 is connected to the dust removal main pipe 1, the lower end of the guide pipe 4 is connected to the dust removal branch pipe 2, and the interior of the guide pipe 4 is connected to the interior of the dust removal main pipe 1 and the interior of the dust removal branch pipe 2.

[0023] The core of the above technical solution lies in adding guide pipes 4 on both sides of the dust removal branch pipe 2 in front of the dust removal valve 3. This design cleverly achieves the following functions:

[0024] Automatic dust removal: When the dust collector valve 3 is closed, the airflow that originally passed through the main dust collector pipe 1 is guided into the guide pipes 4 on both sides. This change in airflow path disturbs the dust and small particles deposited in front of the dust collector valve 3, causing these particles to no longer accumulate but instead be carried away by the airflow. Subsequently, they are smoothly carried away by the airflow through the guide pipe 4 on the other side, thus achieving the purpose of automatically cleaning the dust accumulation in front of the dust collector valve 3 without increasing additional power consumption.

[0025] Unaffected Normal Ventilation: It is worth noting that the design of this guide pipe 4 is cleverly installed before the dust removal valve 3. Therefore, when the dust removal valve 3 is in the open state, it will not interfere with or obstruct the normal ventilation volume of the dust removal branch pipe 2. This means that while maintaining efficient dust removal, the system also ensures that the ventilation efficiency of the dust removal branch pipe 2 is not affected.

[0026] In summary, this technical solution, through the addition of the guide pipe 4, not only achieves automatic cleaning of the ash accumulated in front of the dust removal valve 3, but also ensures the overall operating efficiency and stability of the dust removal system. It is an economical and practical improvement solution for the dust removal system.

[0027] Preferably, the guide pipes 4 on both sides of the dust removal branch pipe 2 are symmetrically distributed.

[0028] Preferably, the lower edge of the lower port of the guide pipe 4 is flush with the upper edge of the dust collector valve 3. This design further eliminates any potential dead angles for dust accumulation between the guide pipe 4 and the dust collector valve 3. During the dust removal process, the dust and small particles deposited in front of the dust collector valve 3 are ensured to be fully covered and smoothly carried away by the airflow due to the ingenious design of the guide pipe 4, leaving nothing behind. This avoids the problem of dust accumulation caused by dead angles, thereby ensuring the cleaning efficiency and effectiveness of the dust removal system, extending the service life of the dust collector valve 3 and related components, and also reducing maintenance costs and workload.

[0029] Preferably, the guide pipe 4 is a square guide pipe, which further enhances the cleaning efficiency at the connection between the guide pipe 4 and the dust collector valve 3, effectively preventing the existence of dead corners in this area. Simultaneously, the square guide pipe design allows the airflow to more evenly cover the entire connection interface, ensuring that dust and small particles deposited in front of the dust collector valve 3 are fully agitated and carried away by the airflow, avoiding dust accumulation problems caused by dead corners. This design not only improves the overall cleaning performance of the dust removal system but also ensures the continuous and efficient operation of the dust collector valve 3 and its surrounding area, reducing system blockage and maintenance needs caused by dust accumulation, thereby extending the service life of the equipment and reducing operating costs. It is evident that the application of the square guide pipe greatly enhances the dust removal effect, further ensuring the complete removal of deposited dust.

[0030] Preferably, the angle between the dust collection main duct 1 and the guide pipe 4 is 30° to 40°. Within this angle range, the airflow can form a suitable flow pattern when passing through the guide pipe 4, which not only enhances the turbulence effect of the airflow but also improves the carrying capacity of deposits. This ensures both the efficient operation of the dust collection system and the complete removal of deposited dust, avoiding dust accumulation problems caused by insufficient airflow power or improper direction. This design achieves optimized utilization of airflow, ensures effective removal of deposited dust, and further improves the efficiency and performance of dust collection.

[0031] Preferably, the included angle between the dust removal main pipe 1 and the guide pipe 4 is 35°.

[0032] It should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A vertical dust collector pipe with automatic dust removal function, characterized in that: The system includes a main dust collection pipe, below which is a vertically connected and internally communicating dust collection branch pipe, and a dust collection valve on the dust collection branch pipe. Above the dust collection valve, inclined guide pipes are provided on both sides of the dust collection branch pipe. The upper end of the guide pipe is connected to the main dust collection pipe, and the lower end of the guide pipe is connected to the dust collection branch pipe. The interior of the guide pipe is connected to the interior of both the main dust collection pipe and the dust collection branch pipe.

2. The vertical dust collector pipe with automatic dust removal function according to claim 1, characterized in that: The guide pipes on both sides of the dust removal branch pipe are symmetrically distributed.

3. The vertical dust collector pipe with automatic dust removal function according to claim 1 or 2, characterized in that: The lower edge of the lower port of the guide pipe is flush with the upper edge of the dust removal valve.

4. The vertical dust collector pipe with automatic dust removal function according to claim 3, characterized in that: The guide tube is a square guide tube.

5. The vertical dust collector pipe with automatic dust removal function according to claim 4, characterized in that: The angle between the dust removal main pipe and the guide pipe is 30° to 40°.

6. The vertical dust collector pipe with automatic dust removal function according to claim 5, characterized in that: The angle between the dust removal main pipe and the guide pipe is 35°.