Paste pump

Abstract

The invention relates to a paste pump which comprises a rack, a pumping unit, a spiral paste pressing unit and a paste stirring unit. The pumping unit comprises a pumping hopper. The spiral paste pressing unit comprises a paste pressing hopper, a paste pressing shaft, a spiral blade and a paste pressing drive component, and the paste pressing hopper communicates with the pumping hopper. The paste stirring unit comprises a stirring hopper, a stirring shaft, a stirring blade and a stirring drive component, and the stirring hopper communicates with the paste pressing hopper. According to the paste pump, the pumping efficiency is high, and high-viscosity pasty objects with the water content being 30% or above can be pumped; the whole processes of preparing, pressing and pumping are completed in the same machine body, the requirements for manpower and sites are reduced, the paste pump can be used for the ground or directly enter the construction site in a tunnel, and the long-distance conveying link, materials and energy consumption are reduced; and the inertial thinking that two hoppers need to be separated by a physical plate-type discharging door is broken through, the dual functions of door separation and pressing are achieved through spiral rotating and stopping, the three functional hoppers are communicated without obstacles, the whole machine structure is simple, and functions are complete.

Description

technical field [0001] The invention relates to the field of construction machinery, in particular to a mud pump. Background technique [0002] In the construction of underground trenchless projects such as subways, underground pipe galleries, and underground passages, pipe jacking machines and shield machines are often used for construction. When such equipment is constructed underground, due to the influence of the self-weight of (supporting) concrete prefabricated pipe joints or machine self-weight , when the geological conditions change along with the line, it will often cause geological subsidence, resulting in the problem that the actual construction direction deviates from the set direction, and the problem of filling the gap between the excavation space and the concrete structure. [0003] In order to solve the above problems, a grouting pump is usually used at present to inject mud into the outer end of the concrete prefabricated pipe joint wall at the settlement th...

AI Technical Summary

Problems solved by technology

There are many operators in this method, and two independent equipments of stirring and pumping are used, which occupy a large space; after the hopper is raised, it is difficult to load materials, and the materials are poured to the ground due to stirring on site, and then manually loaded, which requires more labor and the working environment Dirty, in addition, as the material level drops, the self-weight pressure becomes smaller and smaller, and the suction efficiency also decreases, which are all inevitable defects

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