| 摘要 |
A pump (10) for viscous fluids or slurries, such as liquid concrete or liquefied ground bone meal, has a steel frame (15) in which is mounted a large diameter cylinder (11) leading to a tapered outlet (12). An inlet (25) having a hopper (18) is mounted close to the outlet (12), and has a non-return valve (25) therein. A piston (19) is driven by a hydraulic ram (26) mounted on the frame (15). The hydraulic ram (26) is driven by high pressure hydraulic fluid via a control valve (30) to control the reciprocation of the ram (26) and the piston (19) to pump fluid material from the cylinder (11). The pump (10) is designed to be mounted at the rear of a concrete truck so that it can be driven by the truck's hydraulics. The pump (10) is readily transportable and can be carried on to site by an excavator or other machine. |
