Light red brick with spent bleaching clay utilized and technology for preparing light red brick

Abstract

The invention relates to a light red brick with spent bleaching clay utilized and a technology for preparing the light red brick. The light red brick is characterized in that the light red brick are prepared from the raw materials of the spent bleaching clay and red clay, and in the formula, the quality percentage of the raw materials is 10-30% of the spent bleaching clay and 70-90% of the red clay. The technology for preparing the light red brick includes the following steps of (1) mixing, (2) watering, (3) ageing, (4) compacting, (5) drying, (6) firing and (7) cooling. According to the light red brick prepared through the technology, the water absorption ratio is less than 15%, the compressive strength is greater than 15MPa, and other technical indexes all meet the quality requirements of the national standard GB / T5101-2003. The light red brick with the spent bleaching clay utilized and the technology for preparing the light red brick have the advantages that waste recycling utilization of the spent bleaching clay is realized, parts of energy sources in the red brick firing process are saved, and light red bricks with high quality are produced.

Description

technical field [0001] The invention relates to a light red brick and a preparation process, in particular to a light red brick prepared by using waste—deoiled waste clay as a raw material and a preparation process. Background technique [0002] At present, China's construction industry is booming, in which red bricks play an important role, and the use of 100% red clay to burn red bricks has been listed as a national restricted industry. In order to save red clay resources and protect the ecological environment, the red brick production industry currently uses a certain amount of fly ash, cinder ash and other industrial by-products to burn red bricks to comply with national industrial policies. [0003] Waste white clay is an industrial by-product produced in large quantities in the decolorization process of edible oil and fat. It is formed by the loss of adsorption activity of activated clay after it is used for oil decolorization. In addition to containing SiO in waste w...

AI Technical Summary

Problems solved by technology

[0004] For a long time, most enterprises dispose of waste white clay by discarding it in the open air or sending it to the garbage dump for burial after deoiling or not deoiling, which not only pollutes the environment, but also wastes resources