China Coal Manufacturer supplies mining single hydraulic props direct sales suspended single hydraulic props

Product information of single hydraulic prop
The single hydraulic prop is an externally supplied constant resistance single hydraulic prop. It can be matched with various roof beams and can also be used as the main column. It can be used to support the roof of the blasting mining working surface, and can also be used for other temporary supports.
The single hydraulic prop is suitable for inclined coal seam mining working faces where the coal seam inclination angle is less than 3 degrees. The conditions for the coal seam roof and floor that it adapts to are: the backwardness of the roof does not affect the recovery of the pillars, the bottom plate should not be too soft, and the depth of the pillars pressed into the bottom plate Do not deteriorate the integrity of the base plate, otherwise the base should be enlarged.
When used in blasting mining working surfaces where coal is relatively soft, protective measures should be taken on the coating surface of the living cylinder to prevent collapse. When the pillars are matched with wooden roof beams or used as point columns, the top caps should be replaced with column caps to avoid damaging the wooden beams.
Product classification of single hydraulic prop
Suspended single hydraulic prop
Double telescopic suspended single hydraulic prop
Internal injection single hydraulic prop
Fiberglass single hydraulic prop Prop
The suspended single hydraulic prop is a type of external injection single hydraulic prop, but it has another significant advantage over the external injection single hydraulic prop, that is, the single hydraulic prop adopts a plunger suspension type. Technical principle: the suspension force reaches four-fifths of the working resistance, and the force on the column is only one-fifth. The three-purpose valve of the type pillar is set on the handle body. When injecting liquid, the three-purpose valve does not follow the direction of the pillar. The movable column rises as it rises, making it easy to operate, safe and reliable.
The double telescopic suspended single hydraulic prop is a new generation working face single support product developed by China University of Mining and Technology. protective equipment. It is suitable for roof support of coal mine mining working faces, end roof support of fully mechanized mining working faces, and advanced support of tunnel excavation. The suspended single hydraulic prop is a type of external injection single hydraulic prop, but it has a very significant advantage over the external injection single hydraulic prop, that is, the single hydraulic prop adopts the technical principle of plunger suspension, and the suspension force Reaching four-fifths of the working resistance, the force on the column is only one-fifth. The three-purpose valve of the type pillar is located on the handle body. When injecting liquid, the three-purpose valve does not rise with the rise of the living column of the pillar. The operation Convenient, safe and reliable.
Single hydraulic props are generally divided into external injection single hydraulic props, internal injection single hydraulic props, suspended single hydraulic props and friction props. The internally injected single hydraulic prop has its own pump and is equipped with a pump. When setting up, the column can be raised quickly by shaking it with a hand crank. The working fluid is not discharged when the column is lowered. It can better protect the working environment, and is convenient to use and manage. Flexible and simple to equip. At present, the internally injected single hydraulic props with diameters and cylinder diameters ranging from... are mainly used.
< r::/~~_ FRP single hydraulic prop
The FRP single hydraulic prop injects liquid into the three-way valve connected to the single hydraulic prop through the hydraulic station, and the single hydraulic prop begins to rise. , reach the required height, use the sealing effect of the sealing ring in the hydraulic prop to complete the support. If the support falls, open the three-way valve unloading valve, and the hydraulic prop begins to fall, completing the work.
According to the different liquid supply methods and working fluids, pillars are divided into external liquid supply type (referred to as external injection type) and internal liquid supply type (referred to as internal injection type) pillars.
According to different working strokes, pillars are divided into single telescopic (single stroke) pillars and double telescopic (double stroke) pillars. When the stroke characteristics are not specified, they are single telescopic pillars.
According to different materials used, pillars are divided into ordinary steel pillars, high titanium alloy pillars, aluminum alloy pillars, stainless steel pillars, etc. When the material characteristics are not specified, they are steel pillars.
According to the structural form, pillars can be divided into two categories: piston pillars and plunger suspended pillars. Piston-type props are divided into single telescopic and double telescopic props according to their working stroke. The plunger suspended pillar uses water medium and is an environmentally friendly pillar.
Product Features of Single Hydraulic Prop
Large working stroke, low safety management cost
Each specification can replace the traditional piston type single prop, which reduces the cost due to high working surface mining and roadway Changes in the amount of movement of the top and bottom plates require the frequency of replacement of different types of single pillars, which reduces the labor intensity of workers and the number of additional spare pillars.
High support strength, good safety and stability
The pillars have no load-bearing welds. At the same time, the pillars adopt the principle of suspension technology. The suspension force generated by the high-pressure liquid acts directly on the top end, reaching five times of the working resistance. Fourth, the force on the column is only one-fifth, which greatly improves the stability and unbalanced load capacity of the column support.
Leakage is easy to detect, safe, reliable and efficient
Due to structural improvements, the virtual roof and decapping of the pillar caused by internal leakage are avoided. Once the pillar leaks, it can be directly inspected with the naked eye at the underground site. The pillars can be replaced at any time and adopt the technical principles of seal compensation and seal tightening. The greater the pressure from the top plate, the tighter the sealing surface fits and the less likely it is to leak.
Long service life, easy operation and maintenance
The overall structure is simple, long service life, convenient operation and maintenance, which can greatly reduce the prop hoisting and maintenance rate.
Contact person: Li Hua
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Company address: Jining High-tech Zone, Shandong Province No. North, Kaiyuan Road, District