How to prevent water inrush and water penetration

Prevention and control of water damage is an important part of coal mine safety work. In addition to carefully designing the location of the wellhead when designing the mine and arranging the roadway, coal mining under the rivers and lakes in the water-storage area and the ground should leave a safety coal pillar, and also organize the strength to repair the drainage ditch and build waterproof before the rain show. Dikes, filling ground cracks to reduce ground rainwater leakage into the well. It is especially important that when the roadway is close to the suspected water accumulation area, it is necessary to take water exploration measures to explore the first. After the water accumulation area has been proved, release the water and then dig it in; or modify the design to change the direction of the tunnel and avoid the danger zone. Never blindly understand the situation, just blindly dig.

Before the water is permeable, there are signs, such as the pressure on the top and bottom of the work surface, the water in the head, the water in the coal, the sound of water in the coal seam, the water flowing out of the drill hole, and so on. Every underground worker must know these signs of water permeability. If these signs are found, they will automatically stop working and report to the mine dispatching room.

If there is a water permeable accident in the underground, it is necessary to use the quickest method to notify all nearby personnel to retreat quickly and calmly to a high place. After permeable, sometimes a large amount of harmful gases are released from the water accumulation area, so pay special attention to this.

Double Wheel Concrete Pile Spinning/Centrifugal Machine:

Double Wheel Concrete Pile Spinning/Centrifugal Machine is mainly apply to produce High strength centrifugal technology concrete spun piles of difference diameter and length, Prestressed Reinforced concrete pole(SPC pole) by spinning formed. According to customer's effeciency request, there are Single wheel spinning machine and Double wheel spinning machine at customer's option, it is equipped with a stepless speed-variation motor and a control panel, it works smoothly and its speeder is of wide-range. Its box base is sturdy and durable and easy for installation.

Our Pile Spinning Machine's Advantages:

1. Unique "slot" design, change the screw limit between the bearing support and the base plate with the card slot and bolt limit. Both up and down sides of the spinning machine panel, undersurface and two sides of bearing support go through fine machining. Though the process is complex, it makes it more solid during high-frequency vibration of bearing support and the floor. Repair and replacement also have interchangeability.

2. Connection shaft is whole shaft, to avoid stress concentration brought by shaft diameter changes, resulting in the phenomenon of "shaft-broken".

3. The limit side of the support wheel is removable. It is convenient for users to replace.

4. Frequency-conversion cabinet of spinning machine records process parameter of each pipe and output reports, provides the office computer data communication interface.

Spinning Machine Technical Parameter:

Concrete Double Wheel Spun Pile Spinning Machine

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