EP2225462A1 - Improved concrete pump - Google Patents

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  • WO2009059376A1 - Improved concrete pump - Google Patents

    A Concrete Pump is a mechanical device compromising of round funnel shape hoper Pump outlet rotating pressure and wear plates to which are attached rotating pump cylinders opposite rotating wear plate and press against it is stationary wear plate to which is attached hoper' s outlet and pump's outlet flange. Pump functioning as follow; Concrete from hoper passing through stationary and ...

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  • Research on Pump Primers for Friction Reduction of Wet-Mix ...

    Mar 05 2017 · Wet-mix shotcrete has lower water content even though looking wet which is generally less than 8% of total content. The inner surface of pipes will absorb water from fresh concrete to wet itself if concrete pump primers is not pumped early; meanwhile the saturated concrete is transformed into the unsaturated concrete and pipe blockage often occurs.

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  • US3663129A - Concrete pump - Google Patents

    A constant flow concrete pump having a number of hydraulically actuated concrete pump assemblies connected to inlet openings in one wall of a semi-fluid concrete hopper which has a single discharge opening in the opposite wall and a valve mounted in the hopper and having an inlet of sufficient length to encompass at least two of the inlet openings in the hopper wall relative movement is ...

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  • US3659970A - Concrete pump - Google Patents

    A pump for conveying fluid aggregate-containing concrete from a hopper to the location desired including an improved valve that allows for sequentially advancing concrete from a pair of chambers by extension and withdrawal of respective pistons. US3659970A - Concrete pump - Google Patents Concrete pump Download PDF Info Publication number ...

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  • DE3219882A1 - Concrete pump - Google Patents

    In an apparatus for conveying concrete comprising a pump with pistons arranged mutually parallel which conveys the concrete which can be supplied via a funnel alternately into a pressure pipe via an S-shaped distributor arranged pivotably in the funnel the funnel being connected at its rear wall to the cylinders of the pump via openings lying in one plane and the openings being ...

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  • US8439657B2 - Concrete pump - Google Patents

    A Concrete Pump is a mechanical device comprising of a round funnel shape hoper pump outlet rotating pressure and wear plates. Attached to the rotating pressure and wear plates are rotating pump cylinders and opposite the pump cylinders are a rotating wear plate. Pressed against the rotating wear plates is the stationary wear. A hoper outlet and a pump outlet flange are attached to the ...

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  • US7704314B2 - Concrete pump primer - Google Patents

    An improved composition for and method of priming a concrete pump line is provided. The flowable composition comprises a solid particulate mixture and water the particulate mixture being comprised of solvatable polymeric material preferably selected from a group consisting of polyacrylamide polyacrylate and mixtures thereof; an organic complexing agent preferably of urea; and a buffering ...

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  • US6823888B1 - Telescopic boom-mounted concrete pump ...

    An improved telescopic boom-mounted concrete pump apparatus is disclosed in co-pending application Ser. No. 10/045106 filed Jan. 7 2002. Although both of the above-identified patents represent a significant advance in the art the invention of the co-pending application eliminates the need for coiling the flexible hose on the crane platform ...

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