Foaming agent for tailing sintering perforated brick and application thereof

Abstract

The invention discloses a foaming agent for a tailing sintering perforated brick. The foaming agent comprises the following components in percentage by mass: 1-20 percent of edible powder, 1-20 percent of cane sugar, 0.1-10 percent of yeast and 50-97 percent of water. The foaming agent is applied to a tailing sintering perforated brick by the following steps of: adding a foaming agent of which the amount is 0.1-25 percent by mass of the total amount of slurry which contains 60-90 percent by weight of tailings into the slurry, and fermenting in a die to obtain a green brick; and drying and sintering the green brick to obtain the tailing sintering perforated brick. The foaming agent disclosed by the invention has the advantages of reasonable component mixture ratio, wide raw material source, low cost and capability of foaming at the normal temperature; and the foaming agent is applied to the tailing sintering perforated brick, is mainly made of tailings serving as raw materials, is used for preparing a tailing sintering perforated brick with adjustable porosity, low density, small heat conducting coefficient and high heat-preserving and heat-insulating properties by foaming at the normal temperature and sintering, is suitable to be applied to non-bearing low-density light wall body materials which mainly have framework structures for buildings, and can be widely applied in the field of building wall bodies, ornaments or roof or heat-insulating and heat-preserving materials and the like with framework structures.

Description

technical field [0001] The invention discloses a foaming agent for tailings sintered porous bricks and its application; it belongs to the technical field of solid waste utilization and the technical field of inorganic building thermal insulation materials. Background technique [0002] The raw materials of clay solid bricks, a traditional wall building material in my country, are mainly obtained from cultivated land, resulting in a waste of replacement resources. In order to protect the environment, protect the land, and speed up the elimination of clay solid bricks, the National Building Materials Bureau, the Ministry of Agriculture, Animal Husbandry and Fisheries, the Ministry of Land and Resources, and the Ministry of Urban and Rural Development jointly issued the "Notice on Strictly Restricting Destruction of Fields and Burning Bricks and Actively Promoting the Reform of Wall Materials" , The state stipulates that all cities above the county level will ban the use of sol...

AI Technical Summary

Problems solved by technology

The method disclosed in the CN101412597A invention patent can realize foaming at room temperature to prepare sintered foam bricks, but in the method implementation, a high-speed foaming machine must be used to realize foaming, which increases the production cost of sintered foam bricks; CN101684680A and CN101638918A invention patents disclose sintered porous bricks Insulation board technology, the foaming principle is that the foaming agent is thermally decomposed to release gas during the high-temperature sintering process of the shaped brick. This method requires the mixed raw materials to be foamed in a high-temperature-resistant mold. Sintering, otherwise the raw material will foam and expand during the sintering process and the shape and size of the product cannot be controlled. Therefore, the application of high temperature resistant molds will also greatly increase the production cost

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