Single hydraulic prop DW single hydraulic prop DWB light single hydraulic prop

  The single hydraulic prop is a common supporting equipment in the coal and miner industries
It can be applied to thin and thick coal seams in the coal industry to play a significant role because of its large bearing capacity, strong anti eccentric load capacity, large working stroke and wide range of application
DW single hydraulic prop is a constant resistance prop, which can be matched with various top beams or used as a main column
It can be used for the support of general mechanized coal mining or blasting face in coal mine, and also for the end support or other temporary support of comprehensive mechanized coal mining face
The DW single hydraulic prop is matched with the metal hinged top beam, which is used for the ends of the general mechanized blasting mining face and the fully mechanized mining face in the coal mine or for the temporary payment of the roof
It is applicable to the coal seam with an inclination of less than 25° When some measures are taken, it can also be used for 25 DEG-- 35° Mining face
This series of single hydraulic prop has good stability and outstanding technical performance advantages
It increases the single support height of the high-grade common mining face of the coal mine from 2
5m to 3
5m
The coal seam below 3
5m can realize the full height mining at one time, and can provide end and advance support for the working face with the coal seam thickness below 4
5m
DW single hydraulic prop product features  
1
The working stroke is large, especially suitable for the working face with large variation of underground roof height
2
The pillar adopts inner hole sealing, which is resistant to bumps and has a wide range of applications
3
Never break
Friction welding shall be adopted, and the weld shall not be broken
4
The pillar adopts a new sealing device to remove the leakage point between the DZ pillar piston and the movable column, which is safe and reliable
5
Horizontal support is available
6
High strength, no bending
 
1、 Product use
It is to support the roof of the working face and the rock falling from the roof to ensure a safe working space

2、 Operating principle
It injects liquid into the three-way valve connected with the single hydraulic prop through the hydraulic station, the single hydraulic prop starts to rise to the required height, and the support is completed by using the sealing effect of the sealing ring in the hydraulic prop; In case of lowering, open the unloading valve of the three-way valve, and the hydraulic prop starts to lower to complete the work

3、 Usage characteristics
The underground transportation is convenient, the working face is easy to use and move, the maintenance is simple, and the labor, time, labor, money and worry are saved

 
4、 Key advantages
1
large supporting force, anti eccentric load
Adopting the principle of plunger suspension technology, the suspension force of the column reaches four fifths of the working resistance, and the force on the column is one fifth
Thus, the stability and safety of the pillar are greatly improved, and the bearing capacity and anti load capacity of the supporting height of the pillar are improved

2
no weld
The column is no longer equipped with arc welds that are difficult to ensure by the process, which improves the strength and reliability of the column, avoids the hidden dangers of accidents such as roof fall caused by weld fracture, and ensures the safety of production personnel
3
light weight
According to different pillar specifications, the weight of DZ pillar with the same specification is reduced by 15-20%, which is equivalent to that of aluminum alloy pillar, but the working resistance and working stroke are much higher than that of aluminum alloy pillar, so it is more convenient to move, transport and use

4
large stroke
The working stroke of the suspended single hydraulic prop is large, which expands the application range
One specification can replace 2-5 specifications of other props, thus reducing the specifications, reducing the prop reserve, improving the use efficiency and reducing the cost

5
no internal leakage, safer
The pillar has no internal leakage, so the visual inspection can be used to check the pillar leakage
Once the leakage can be found in time, it can be replaced in time
The utility model avoids the pillar false top and tedious detection work caused by the internal leakage of the pillar, and is safer to use