High efficient foam concrete foaming agent foaming machine

Abstract

A high-performance foaming machine for a foam concrete foaming agent comprises a foaming device (1), an air-driving device (2) and a foaming agent dilute solution supply device (3). The foaming device (1) comprises a foaming tube (4) and a spray mechanism (5). The air-driving device (2) comprises an air compressor (14) and a foaming agent dilute solution storage tank (15). The foaming agent dilute solution supply device (3) is connected to a liquid inlet tube (1506) of the foaming agent dilute solution storage tank (15) through a worm pump (23). The foaming machine can adjust the dilution ratio of the foaming agent and the proportion of the dilute solution and air arbitrarily according to the use instruction of the foaming agent and the desired hardness of the foam, thereby reducing the required amount of the foaming agent, saving the compressed air, and forming foam which is stable and has a large diameter.

Description

technical field [0001] The invention relates to a foaming machine, in particular to a device for efficiently mixing foam concrete foaming agent diluent and air to produce foam for foam concrete. Background technique [0002] Foamed concrete, also known as foamed cement, is made by introducing nitrogen, carbon dioxide, oxygen or air into the concrete slurry according to the application needs through chemical or physical means, mixing evenly, pouring, setting and curing. Among them, to introduce air into the concrete slurry in a physical way, it is necessary to mix the foam concrete foaming agent (hereinafter referred to as the foaming agent diluent) with air to make foam, and then mix the foam with the concrete slurry. At present, the way to produce foam is to use high-pressure air and foaming agent diluent to mix in the mixing tube to form foam. The foaming system of the foaming machine has three structural defects: one is that the foaming agent stock solution cannot be ...

AI Technical Summary

Problems solved by technology

At present, the way to produce foam is to use high-pressure air and foaming agent diluent to mix in the mixing tube to form foam. The foaming system of the foaming machine has three structural defects: one is that the foaming agent stock solution cannot be mixed with water. Evenly mixed, the foaming agent stock solution in the form of micelles cannot be uniformly dispersed into water, and part of the foaming agent stock solution may still enter the foaming tube in the form of micelles, and the initial foaming agent diluent and air in the foaming tube The contact surface is small, and the uneven diluent will reach the stainless steel wire in the foam tube together with the air in the form of droplets or water flow. The resistance in the foam tube is unevenly distributed in the radial direction, and air channels are formed at the small resistance, and the resistance is large. The blowing agent diluent cannot fully form foam with the air, and the direct result is a waste of high-pressure air; second, the dilution factor cannot be adjusted continuously, and the dilution factor is ≤ 40; third, the length-to-diameter ratio of the foaming tube is too large, and the If the air flow rate is too small, the formed foam will be torn into micro-bubbles with a small diameter, that is, a "creamy" foam will be formed, and its large specific surface will prevent the concrete slurry from fully covering the surface of all the foam cells. , resulting in perforation of foamed concrete products and reduction of compressive strength

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