Building material manufactured by mud as raw material and preparation method thereof

A technology of building materials and raw materials, applied in the field of building materials and their preparation, can solve the problems of lower overall efficiency, the inability of large-scale development and utilization of sludge natural resources, and difficulties in actual use, etc.
CN1792956AInactive Publication Date: 2006-06-28HARBIN INST OF TECH

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HARBIN INST OF TECH
Publication Date
2006-06-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

A building material for house, road, bridge, etc is prepared from sludge through drying, breaking, sieving, proportionally mixing it with clay and adhesive, shaping, sintering and cooling.
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Description

technical field

[0001] The invention relates to a building material and a preparation method thereof. Background technique

[0002] Now, as a natural resource, sludge has not been effectively used; on the contrary, people need to add additional costs to dispose of the sludge generated in the water treatment process, which increases people's labor burden and economic burden. The primary obstacle to the use of sludge as a building material is that the heavy metals in the sludge are not easily removed or solidified, because during the sintering process of using sludge as a raw material to prepare building materials, the transformation of heavy metal elements in the material is It is a very complicated process, which may occur the combination of particles, the condensation and diffusion of gaseous metals on the surface of particles, or the concretion of metal vapor when it is cooled, and the chemical reactions between heavy metals or between heavy metal elements and other elemen...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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