Large carrying capacity, strong anti-eccentric load capacity, large working stroke and wide application range.
DW Single hydraulic prop for seam angle is less than 25 degrees - 35 degrees inclined coal seam mining face,the adaptation of the coal seam roof and floor conditions are: roof pillars behind do not affect the recovery of base should not be too soft, prop depth is not pressed into the floor deterioration of the integrity of the base plate, or should increase the base.
In the coal mining face relatively loose cannon when used on the live cylinder coating surface to take protective measures to prevent collapse.
With wooden roof beams and pillars or columns used to do, you should replace the column caps cover to prevent damage to wooden beams.
When the load exceeds the rated working resistance of the pillar, the high-pressure liquid will open the safety valve in the three-purpose valve, the liquid will overflow, and the pillar will shrink; when the load on the pillar is lower than the rated working resistance, the safety valve will be activated by the safety valve spring. Closed, the liquid stops spilling.
1. Base 2. Oil cylinder 3. Living cylinder 4. Three-purpose valve 5. Locking part 6. Handle body 7. Top cover 8. Wing nut
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Not only meet the requirements of production and operating process conditions, but also the operation is simple and not affected by heat,
The pillar is anti-corrosive and wear-resistant.
And the characteristics of anti-bubble collapse, the working medium uses the neutral water of the coal mine underground to ensure that the working environment and groundwater are not polluted.
⑴. Insert the nozzle of the liquid injection gun into the liquid inlet of the pillar, and make sure to connect the fixed sleeve of the liquid injection gun and the liquid inlet of the pillar to prevent the liquid from injuring people.
⑵. Slowly pull the trigger of the liquid injection gun to allow the liquid to enter the pillar and rise until the pillar supports the top plate.
⑶. The support position of the pillar should be perpendicular to the top plate. Do not face the passage for people to walk safely, so as not to injure people by spraying liquid when the pillar is under pres sure，hang the anti-rewind chain.
⑴. Insert the withdrawal hook into one end of the unloading port on the pillar.
⑵. The operator should stand in a safe position, move the upward plate to retract the hook, the emulsion in the column will be discharged from the liquid inlet nozzle and drop the column, and then return to the column.
⑶. The pillars that have been returned should be stored on the working surface with their heads up to avoid soiling the cutting.
PLUNGER SUSPENSION TECHNOLOGY
THREE-PURPOSE VALVE IMPROVES COLUMN STRENGTH
THE SEALING POINT IS PERIPHERAL TYPE
QUALITY ASSURANCE, QUALITY FIRST
PARAMETER OF DW SINGLE HYDRAULIC PROP
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