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  • Full Tail Sand Direct Slurrying Cementing Filling Process - China

    price: contact company for price

    Full tail sand direct slurrying cementing filling process

    Process introduction

    Full tail sand direct slurrying cementing filling process

    refers to the filling method that taking whole grain-grade

    tail sand without classification and desliming as the

    filling aggregate, to be pumped to vertical (or horizontal)

    sand silo from concentration plant for natural

    sedimentation, and be conveyed to mix with a certain

    percentage of cementing material and water after metering,

    and then be filled into underground worked-out section.

    “Slurry like paste” cementing filling system designed by

    our company for Shandong Dongping Hongda Iron Ore Company,

    takes concentration plant tail sand as the raw material,

    uses alkali-activated cementing material as the cementing

    material. Full tail sand in vertical sand silo can be made

    into slurry through wind and water linkage activation, and

    be conveyed to electromagnetic flow meter for metering

    through pipeline; cementation powder stored in material silo

    will be automatically metered and proportioned by screw

    conveyor and screw metering scale; the filling material will

    be stirred in high speed by high concentration stirred tank;

    the prepared filling slurry will flow naturally to the

    filling area through filling drilling hoe and laying

    pipeline.

    Technical innovation

    Through drawing lessons from bushy technology at home and

    abroad, the company upgrades the vertical sand silo

    technology to shorten sedimentation time of full tail sand,

    and mix them with cementing material when the concentration

    is about 50%. The covering area of this process is

    relatively small, and the overflow water will flow back to

    the plant.

    The company achieves full tail sand utilization, to

    reduce the pressure of tailing.

    The company adopts the new alkali-activated

    cementing material, to solve the problem of degradation in

    water and no-cementation of superfine tail sand.

    The company adopts wind pipe cleaning system, to

    reduce pipeline flushing water consumption and relieve the

    pressure of underground roadway drainage.


    Company Contact:


    • Phone: 8653168658705

    • Address: Building A 806, Yinhe Plaza, High-teach Zone,, Jinan, China

    • Email: Email


    Published date: August 29, 2013 -

    • Business Description: Shandong Huifa Mining Technology Co.,Ltd, an alliance unit of Province

      Ministry Co constructing State Key Laboratory, specializes in the

      design, manufacturing and general contracting mine filling exploitation,

      tailing dry drainage and mine environmental governance projects.

      The company headquarter is located in Jinan High tech Zone, consists of two manufacturing bases covering an area of about 27000 square meters. Of which, one is located in Weifang Linqu Economic Development Zone, the other is located in Dezhou Liyi County Economic Development Zone. The company has six standardized mechanical workshops, and is equipped with large CNC machining centers and other advanced equipments. Now there are 500 employees in the company, of which 5 people have doctor s degree, 25 people have master s degree, people with bachelor s degree or above account for 70%. In 2012, our company passed the ISO9001 international standard certification, and was awarded as High tech Enterprise of Shandong Province. The company has totally applied for more than 80 items of mine filling technology and process patents, including over 20 items of invention patents.

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