Sintering process of inorganic solid waste internal combustion sintered building material product

Abstract

The invention discloses a sintering process of an inorganic solid waste internal combustion sintered building material product . The sintering process comprises the following steps: (1) inorganic solid waste internal combustion sintering green bricks are prefabricated; (2) the green bricks are automatically grouped and stacked into a kiln car through an automatic setting machine according to the principle that the green bricks on the outer side are dense and the green bricks on the inner side are sparse; (3) the kiln car automatically and continuously enters a drying kiln at the running speed of 0.1-0.15 m / min, and after drying is conducted at the temperature of 100-150 DEG C, green bricks with the water content smaller than 1% are obtained; and (4) the kiln car driving out of the drying kiln automatically and continuously enters a firing kiln for firing at the running speed of 0.1-0.15 m / min, the temperature is increased to 1080 DEG C from 150 DEG C, then heat preservation is conducted for a period of time, cooling is conducted through a slow cooling section and a rapid cooling section, and the inorganic solid waste internal combustion sintered building material product is obtained after the product is taken out of the kiln. According to the sintering process, inorganic solid waste can be fully recycled, various formula elements of the raw material can be fully subjected to physical and chemical reaction, and the qualified rate of the building material product formed by sintering is up to 98% or above.

Description

technical field [0001] The invention relates to the technical field of kiln equipment for sintering building and building material products, and more specifically relates to a sintering process for internal combustion and sintering building and building material products using inorganic solid waste as raw materials. Background technique [0002] Sintered building materials belong to the category of ceramic products. my country's ceramics have a long history, and kilns have played a decisive role. They have the same development history: from non-kiln flat pile firing to cave kilns to horizontal caves, vertical cave kilns, round pits or straight flame pits , and developed from underground to above ground, from flame-style steamed bread kilns, dragon kilns to stepped kilns to egg-shaped kilns, also known as Jingdezhen pits, etc. Kilns are still created by ancient people in the long river of modern history. [0003] After the founding of New China, my country's kilns have achieve...

AI Technical Summary

Problems solved by technology

[0004] With the advancement of science and technology and the rapid development of industry, the mining of mineral resources has produced a huge amount of slag and industrial waste, which has seriously damaged the ecology. Since the mining of mineral resources cannot be completely prohibited from the source, the utilization of solid waste resources has become People have been researching and exploring the world's problems facing mankind in the past 20 years, but they have not fundamentally solved the problem of resource utilization, especially industrial solid waste. The root cause is that there is no treatment technology, and two The cost is high and there is no market, and resource utilization cannot be realized.

[0005] In order to solve the problem of resource utilization of industrial solid waste, the applicant invented sintered building materials using industrial solid waste as raw material, which has been industrialized, but the traditional internal combustion tunnel kiln is not suitable for this special raw material sintered building material products. The sintering tunnel kiln is only suitable for burning bricks in loess, shale, construction waste, etc. It is not suitable for firing internal combustion building materials using industrial solid waste as raw materials, such as: red mud internal combustion bricks , Burning bricks in waste gypsum, burning bricks in sludge, etc.