a mud pump

Abstract

The invention relates to a mud paste pump, comprising a frame; a pumping unit, including a pumping hopper; a screw mud pressing unit, including a mud pressing hopper, a mud pressing shaft, a screw blade and a mud pressing driving part, a mud pressing hopper and a pumping material The buckets are connected; the mud mixing unit includes a mixing hopper, a mixing shaft, a mixing blade and a mixing driving part, and the mixing hopper is connected with the mud pressing hopper. The invention has high pumping efficiency and can pump highly viscous mud paste objects with a moisture content of more than 30%; the whole process of preparation, pressurization and pumping is completed in the same body, which reduces labor and site requirements, and can be used on the ground Or directly enter the construction point in the tunnel, which reduces the long-distance transportation link, material and energy loss; breaks through the inertial thinking that needs to be separated by a physical plate-shaped discharge door between the two hoppers, and realizes it with the rotation and stop of the spiral The dual functions of partition and pressurization are realized, so that the three functional hoppers can be connected without barriers, and the whole machine has a simple structure and complete functions.

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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