Nitrogen foam concrete self-insulation block production process and its foam making device

Abstract

The invention discloses a nitrogen foam concrete self-insulation block production process and a foaming device thereof, and relates to the technical field of building material production. The foaming liquid filled with nitrogen is prefabricated by the foaming device, and then added into a stirring device to fully mix with the concrete slurry. Mix to form a foamed concrete slurry, then pour it into a mold and cast it into shape, and then demould after a period of heat preservation to obtain a foamed concrete block filled with nitrogen; the foaming device foaming agent storage tank, vacuum foaming tank and compression Nitrogen pipe, mix the animal protein foaming agent and water in the foaming agent storage tank to form a foaming liquid, the foaming liquid is input into the vacuum foaming tank through the first delivery pump, and the foaming liquid The spiral ribbons collide and foam evenly, and the compressed nitrogen enters the vacuum foaming tank to form a foaming liquid filled with nitrogen. The foamed concrete block produced by the invention has the characteristics of low thermal conductivity, high thermal insulation performance and long service life, and is suitable for popularization and application.

Description

technical field [0001] The invention relates to the technical field of building material production, in particular to a production process of nitrogen foam concrete self-insulating blocks and a foam making device thereof. Background technique [0002] With the comprehensive advancement and continuous deepening of building energy conservation work in my country, there is an urgent need for different forms of thermal insulation systems, and energy conservation and structural integration have become an important direction for the development and application of structural systems. Self-heating of exterior walls is an important part of building energy-saving work. As a main wall material for energy-saving and structural integration, self-insulation blocks have developed rapidly. [0003] Foam concrete self-insulation block, as one of the commonly used self-insulation wall materials, belongs to inorganic lightweight insulation materials, has good thermal performance, physical and ...

AI Technical Summary

Problems solved by technology

However, at present, most of the foam concrete adopts chemical foaming method, which is a chemical reaction of substances to generate new gas for foaming. The main feature of chemical foaming is that the foam has no foam wall and poor stability. The hydration products of cement and other materials must be used as The base material can exist stably, and the size of the foam bubble changes with the pressure and the amount of foaming substance, which is difficult to control

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