Multi-sprayer foam concrete spreading device and operation method

Abstract

The invention discloses a multi-sprayer foam concrete spreading device and operation method, and belongs to the field of foam concrete construction. The multi-sprayer foam concrete spreading device mainly comprises a moving frame, a mobile station, a spreading rod and the like; and is characterized in that 1, the number and inner diameters of sprayers can be selected from multiple schemes, the universality is high, the device is suitable for various types of foaming machines and delivery pumps, the flow velocity of foam concrete slurry is adjustable, and a best foam concrete spreading effect can be achieved; 2, the sprayers disperse the kinetic energy of the slurry intensively ejected from the tail end of a delivery hose, weaken the impact force, reduce the probability that multiple smallpores are communicated with one other to form big pores, and improve the compressive strength of foam concrete; 3, the mechanical automation degree is high, operators are reduced, the labor intensityis reduced, the sanitary conditions of environmental protection are improved, artificial disturbance is avoided, and the solidification quality of the foam concrete is improved. The multi-sprayer foamconcrete spreading device is combined with the corresponding operation method, so that the spreading efficiency and quality can be improved, energy is saved, emission is reduced, and the economic benefits and social benefits are significant.

Description

technical field [0001] The invention relates to the field of foam concrete construction, in particular to a multi-nozzle foam concrete distribution device and an operation method. Background technique [0002] Foam concrete refers to the preparation of a foaming agent solution into foam by physical methods, and then adding the foam to the slurry made of cement, aggregate, admixture, admixture and water, etc., and pouring it into the project through the distribution device In the structure, the lightweight porous concrete formed by solidification has a wide range of uses. In highway engineering, it is mainly used for roadbed filling, etc., which can effectively reduce the pressure on the foundation, and is especially suitable for filling soft soil foundation roadbeds. At present, for the construction of foamed concrete, the commonly used method is to foam various raw materials through a foaming machine, then pump them to the roadbed construction site through a conveying hose...

AI Technical Summary

Problems solved by technology

When the foam concrete is laid, the operator wears waterproof clothes and trousers and steps on the foam concrete poured by the fabric. On the one hand, the labor intensity of the operator is extremely high, and the environmental protection and sanitation conditions are poor. On the other hand, frequent human disturbance affects the solidification of the foam concrete. At the same time, the foamed concrete slurry overflowed at the end of the delivery hose is sprayed in a cylindrical shape, and the concentrated sprayed slurry has a large kinetic energy, which will also affect the solidification quality of the foamed concrete

Studies have shown that most of the pore diameters of the foam concrete pore structure are distributed in the range of 100 μm to 400 μm. Excessive disturbance and high kinetic energy impact during fabric distribution can easily make multiple small pores connected into large pores, increase the distribution ratio of large pores, and reduce Compressive strength of foamed concrete after curing

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