Directional drainage device for mine main fan air duct condensate water

By designing a directional drainage device for condensate from the main fan duct of a mine, the problem of incomplete condensate drainage was solved by utilizing water level differences and heating pipes. This achieved automatic directional drainage of condensate and prevented icing, thereby improving the safety and stability of equipment operation.

CN224244937UActive Publication Date: 2026-05-15JINCHUAN GROUP NICKEL COBALT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINCHUAN GROUP NICKEL COBALT CO LTD
Filing Date
2025-02-21
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

When the main fan in the mine is running, condensate cannot be completely and timely discharged, leading to building corrosion and icing, increasing labor intensity and safety risks. Existing equipment cannot effectively solve this problem.

Method used

Design a directional drainage device for condensate from the main fan duct of a mine, including a condensate drainage trough, segmented drainage troughs and a seepage pool, to achieve directional drainage by utilizing water level differences, and to install heating pipes at the bottom of the drainage troughs to prevent freezing.

Benefits of technology

It enables automatic directional discharge of condensate, avoiding building corrosion and icing, reducing maintenance costs, and improving safety and equipment operational stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a mine main fan air duct condensate water directional drainage device, belongs to the technical field of mine production, and solves the problems that condensate water generated by operation of an existing mine main fan cannot be thoroughly and timely drained, and the condensate water drips to cause corrosion and icing of buildings. The device comprises a condensate water drainage groove, one end of the condensate water drainage groove is connected with a plurality of segmented drainage grooves, the segmented drainage grooves are located at the lower end of an overflow hole of a mine main fan, and the other end of the condensate water drainage groove is connected with a water seepage pool. The device is compact in structure, convenient to operate and obvious in condensate water directional automatic drainage effect, avoids the freezing phenomenon in winter, prolongs the service time of a main fan foundation building, and is convenient to popularize and use.
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Description

Technical Field

[0001] This utility model belongs to the field of mining technology, specifically relating to a directional drainage device for condensate water in the main fan duct of a mine. Background Technology

[0002] The main fan room in a mine is a crucial component of the coal mine ventilation system. It is responsible for supplying fresh air underground and expelling harmful gases and dust, ensuring safe production and the safety of miners. It is an essential device for mine production. As one of the most critical pieces of equipment in the ventilation system, the safe and efficient operation of the main fan is directly related to the safety of mine production.

[0003] Currently, when the mine's main fan starts operating, it extracts polluted air from underground and discharges it to the surface through a ventilation duct. When the polluted air enters the ventilation duct, it liquefies, forming condensate. Although some measures were previously taken to divert the condensate, the simple equipment makes it prone to incomplete and untimely condensate drainage in summer, leading to dripping condensate and severe corrosion of the main fan's foundation. The problem is even more pronounced in winter, as the low outdoor temperature causes the condensate to freeze. A large amount of ice forms on the previously simple drainage device and under the ventilation duct, significantly increasing the workload for the main fan operators. They need to perform de-icing operations daily, and the safety of personnel cannot be guaranteed during these operations. This is detrimental to the long-term stable operation of the main fan's equipment and facilities, and also increases manpower and material costs. Utility Model Content

[0004] This utility model provides a directional drainage device for condensate from the main fan duct of a mine, which solves the problem that the condensate generated by the operation of the main fan in the existing mine cannot be completely and timely discharged, and the condensate dripping will cause corrosion and icing of the building.

[0005] The technical solution of this utility model is: a directional drainage device for condensate water in the main fan duct of a mine, including a condensate water drainage trough, one end of which is connected to multiple segmented drainage troughs, the segmented drainage troughs being located below the overflow hole of the main fan of the mine, and the other end of which is connected to a seepage pool.

[0006] As a further improvement of this utility model, heating pipes are provided at the bottom of the condensate drain tank and the segmented drain tank.

[0007] As a further improvement of this utility model, an observation port is provided on the top of the seepage tank, and a cover plate is provided on the observation port.

[0008] As a further improvement of this utility model, a drain outlet is provided at the bottom of the seepage tank, and the drain outlet is equipped with a valve.

[0009] The beneficial effects of this invention are as follows: This invention uses a condensate drainage trough and segmented drainage troughs to directly discharge condensate into a seepage tank. Directional discharge of condensate is achieved by relying on the water level difference. Simultaneously, heating pipes at the bottom of the condensate drainage troughs and segmented drainage troughs prevent condensate from freezing, eliminating the need for manual de-icing as before. This ensures the safety of personnel working in the main fan room during winter and reduces the maintenance cost of the main fan. This invention has a compact structure, is easy to operate, and provides a significant effect in the automatic directional discharge of condensate, avoiding freezing in winter, extending the service life of the main fan foundation structure, and facilitating widespread adoption. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] In the diagram: 1-Seepage pool, 2-Observation port, 3-Cover plate, 4-Condensate drainage trough, 5-Segmented drainage trough, 6-Heating pipe, 7-Water outlet. Detailed Implementation

[0012] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0013] like Figure 1 As shown, a directional drainage device for condensate water in a mine main fan duct is characterized by comprising a condensate water drainage trough 4, one end of which is connected to a plurality of segmented drainage troughs 5, the segmented drainage troughs 5 being located at the lower end of the overflow hole of the mine main fan, and the other end of the condensate water drainage trough 4 being connected to a seepage pool 1.

[0014] Heating pipes 6 are installed at the bottom of the condensate drain trough 4 and the segmented drain trough 5.

[0015] An observation port 2 is provided on the top of the seepage tank 1, and a cover plate 3 is provided on the observation port 2.

[0016] The bottom of the seepage tank 1 is provided with a drain outlet 7, and the drain outlet 7 is equipped with a valve.

[0017] In use, connect each segmented drainage trough 5 to the overflow hole of the main mine fan, and check whether the condensate can completely flow into the segmented drainage trough 5. The condensate discharged from the main fan will be transported to the seepage pool 1 through the segmented drainage trough 5 and the condensate drainage trough 4 in sequence. The condensate flows into the condensate drainage trough 4 through the segmented drainage trough 5 using the principle of water level difference. The drain outlet at the end of the condensate drainage trough 4 is connected to the seepage pool 1 to achieve directional drainage. It can be determined whether the seepage pool 1 needs to be drained through the observation port 2. If needed, open the valve of the drain outlet 7 to complete the drainage of the seepage pool. In the face of extremely cold weather, the heating pipe 6 can be turned on to heat the condensate through the condensate drainage trough 4, which can effectively prevent the drainage system from freezing and causing drainage problems. When the heating belt is turned on, the ice-melting effect can be achieved within half an hour.

Claims

1. A directional drainage device for condensate from a main fan duct in a mine, characterized in that: It includes a condensate drainage trough (4), one end of which is connected to multiple segmented drainage troughs (5), the segmented drainage troughs (5) are located at the lower end of the overflow hole of the main fan of the mine, and the other end of the condensate drainage trough (4) is connected to a seepage pool (1).

2. The directional drainage device for condensate from a main fan duct in a mine according to claim 1, characterized in that: Heating pipes (6) are provided at the bottom of the condensate drain (4) and the segmented drain (5).

3. A directional drainage device for condensate from a main ventilation duct in a mine, as described in claim 1 or 2, characterized in that: The top of the seepage tank (1) is provided with an observation port (2), and the observation port (2) is provided with a cover plate (3).

4. A directional drainage device for condensate from a main fan duct in a mine, as described in claim 3, is characterized in that: The bottom of the seepage pool (1) is provided with a drain outlet (7), and the drain outlet (7) is provided with a valve.