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    Single hydraulic prop product information

    Single hydraulic prop product information

    The single hydraulic prop is a constant-resistance single hydraulic prop for external supply. It can be used with various top beams and can also be used as the main pillar. It can be used for the support roof of the blasting working face, and can also be used for other temporary support.

    The single hydraulic prop for the external supply of constant resistance type single hydraulic prop, it can be matched with various top beam, can also make use of column. For the blasting mining face supporting the roof, also can do other temporary supporting the use of .

    The single hydraulic prop is suitable for inclined coal seam mining face with coal seam inclination angle less than 25 ° -35 °. The adaptable coal seam roof and floor conditions are: backward roof does not affect the recovery of the pillar, the floor should not be too soft, and the pillar is pressed into the floor without depth Deteriorate the integrity of the bottom plate, otherwise the base should be enlarged.

    The single hydraulic prop for coal seam dip angle is less than the inclined coal seam mining working face 25 degrees --35 degrees, the adaptation of the coal seam roof and floor conditions is: the roof behind does not affect the pillar recovery, the bottom should not be too soft, integrity pillar pressure into the floor depth is not degraded plate should be added, or large base.

    Single hydraulic prop product information

    When the coal is used in a softer blasting working face, protective measures are taken on the surface of the coating of the live cylinder to prevent collapse. When the pillar is matched with the wooden top beam or used as a point column, the top cover should be replaced with a column cap to avoid damage to the wooden beam.

    Within the mining face in coal more loose cannon, to take measures to protect the active column body surface coating, to prevent the collapse. Pillar and the wooden bar with or do some column when in use, should be changed into the column top hat, so as not to damage the wooden beams.

    Single hydraulic prop product information

    Single Hydraulic Prop Product Video / Product Video

    Product classification of single hydraulic prop

    • Suspension single hydraulic prop

      Suspension single hydraulic prop

    • Double telescopic suspension single hydraulic prop

      Double telescopic suspension single hydraulic prop

    • DN internal injection type single hydraulic prop

      DN internal injection type single hydraulic prop

    • FRP single hydraulic prop

      FRP single hydraulic prop

    Suspension single hydraulic prop
    Suspension type single hydraulic prop is a type of external injection type single hydraulic prop, but it has a significant advantage over external injection type single hydraulic prop, that is, the DWX type single hydraulic prop adopts the principle of plunger suspension technology to suspend The force reaches four-fifths of the working resistance, and the force on the column is only one-fifth. The DWX pillar three-purpose valve is set on the handle body. During the injection, the three-purpose valve does not rise with the rise of the movable pillar of the pillar. , Easy to operate, safe and reliable.
    Suspension single hydraulic prop
    Double telescopic suspension single hydraulic prop
    Double telescopic suspension type single hydraulic prop is a new generation single face support product developed by China University of Mining and Technology. It is the supporting equipment for mechanized general mining face and the end support equipment for comprehensive mining face. It is suitable for roof support of coal mining face, head roof support of fully mechanized mining face, and advanced support for roadway tunneling. Suspension type single hydraulic prop is a type of external injection type single hydraulic prop, but it has a significant advantage over external injection type single hydraulic prop, that is, the DWX type single hydraulic prop adopts the principle of plunger suspension technology to suspend The force reaches four-fifths of the working resistance, and the force on the column is only one-fifth. The DWX pillar three-purpose valve is set on the handle body. During the injection, the three-purpose valve does not rise with the rise of the movable pillar of the pillar. , Easy to operate, safe and reliable.
    Double telescopic suspension single hydraulic prop
    DN internal injection type single hydraulic prop
    Single hydraulic props are generally divided into external injection type single hydraulic props, internal injection type single hydraulic props, suspension type single hydraulic props, and friction props. The internal injection type single hydraulic prop has its own pump and the same. When it is supported, it can quickly rise the column by shaking with a hand crank. The working fluid is not discharged when the column is lowered, which can better protect the working environment. Flexible and simple to equip. At present, the main use is a cylinder diameter of 90mm, from the 0.6-3.15m, there are 12 specifications of the injection-type single hydraulic prop.
    DN internal injection type single hydraulic prop
    FRP single hydraulic prop
    The glass fiber reinforced plastic single hydraulic pillar injects liquid to the three-purpose valve connected to the single hydraulic pillar through the hydraulic station. The single hydraulic pillar starts to rise to the required height. The sealing effect of the sealing ring in the hydraulic pillar is used to complete the support. When descending, the three-way valve unloading valve is opened, and the hydraulic pillar starts to descend to complete the work.
    FRP single hydraulic prop
    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) support according to different liquid supply methods and working fluids.

    Pillar according to liquid and liquid, divided into the external supply of liquid type (referred to as the external injection type) and for the liquid type (referred to as the injection type) pillar.

    Single hydraulic prop product information
    Single hydraulic prop product information
    Pillars are divided into single telescopic (single-stroke) pillars and double telescopic (double-stroke) pillars according to different working strokes. When the stroke characteristics are not specified, they are single telescopic pillars.

    According to different pillar working stroke, divided into single telescopic (Dan Hangcheng) and the double telescopic prop (Shuang Hangcheng) pillar, in does not indicate the travel characteristic, for single telescopic prop.

    The pillars are divided into ordinary steel pillars, high-titanium alloy pillars, aluminum alloy pillars, and stainless steel pillars according to different materials. When the material characteristics are not specified, they are steel pillars.

    The pillar by the use of different materials, is divided into ordinary steel pillar, the pillar of high titanium alloy, aluminum alloy, stainless steel pillar pillar, in does not indicate the material characteristics, is a steel pillar.

    Single hydraulic props The props are different according to the materials used
    Single hydraulic props Pillars can be divided into two types: piston props and plunger suspension props according to the structure.
    Pillars can be divided into two categories: piston pillars and plunger suspension pillars according to the structure. Piston pillars are divided into single telescopic and double telescopic pillars according to the working stroke. The plunger suspension pillar uses water medium and belongs to the "environment-friendly" pillar.

    Pillar can be divided into piston plunger suspension pillar and pillar two categories according to the structure form. Piston type pillar according to the working stroke is divided into single and double telescopic prop expansion. Plunger suspension strut using water medium, which belongs to the "environmentally friendly "pillar.

    Due to different production batches and specific models, the pictures are for reference only. Please contact our sales staff for specific verification.

    Single hydraulic prop product features

    Long working schedule and low safety management cost

    Each specification can replace 2-4 specifications of traditional piston type monolithic pillars, which reduces the frequency of changing different types of monolithic pillars due to changes in the height of the working face and the movement of the roof and floor of the roadway, reducing the labor intensity of workers. And additional spare number of pillars.

    High support strength, good safety and stability

    The pillar has no load-bearing welds. At the same time, the pillar adopts the principle of suspension technology. The suspension force generated by the high-pressure liquid directly acts on the end of the top cover to reach four-fifths of the working resistance. The force on the pillar is only one-fifth, which greatly improves the pillar. Support stability and eccentric load capacity.

    Leaks are easy to find, safe and reliable

    Due to the structural improvement, the situation of false jacking and detachment of the pillar due to internal leakage is avoided. Once the pillar leaks, it can be checked directly with the naked eye at the underground site, and the pillar can be replaced at any time; the principle of seal compensation and seal tightening technology is adopted , The greater the top plate pressure, the tighter the sealing surface fit, the less likely it is to leak.

    Long service life, easy operation and maintenance

    The overall structure is simple and the service life is long; it is easy to operate and easy to maintain, and it can greatly reduce the rate of jack-up and maintenance.

    Features of single hydraulic prop

    Technical parameters of single hydraulic prop

    project unit DW35 DW31.5 DW28 DW25 DW22 DW20 DW18 DW16 DW2214 DW12 DW10 DW8 DW6
    maximum height mm 3500 3150 2800 2500 2200 2000 1800 1600 1400 1200 1000 800 600
    Minimum height mm 2700 2350 2000 17. 1440 1240 1110 1005 900 792 685 578 485
    stroke mm 800 800 800 800 800 760 690 595 500 408 315 222 145
    weight kg 82.8 76.4 70 58 55 49 47 43.6 39.9 36.3 32.0 26.7 twenty three
    Distance from valve to top beam mm 250 527 267 132
    Working load KN 200 200 31.8 250 300
    Working hydraulic Mpa 25.5 25.5 31.8 38.2
    Initial support KN 118-157
    Pumping station pressure Mpa 15-20
    Lifting speed mm / s ≥60
    Drop speed mm / s ≥40
    Cylinder diameter mm Φ100
    Base area c㎡ 113 113 113 109
    Working medium 2% emulsion

    Single hydraulic prop coal safety certificate / Product Security certificate

    Single hydraulic prop coal safety certificate
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