A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The present disclosure relates to a process for recycling aqueous sludge and/or waste, comprising: adding, in a dry process cement production line, the aqueous sludge and/or waste into a raw material or into a vertical mill simultaneously with the raw material, and mixing and grinding the raw material and the aqueous sludge and/or waste in the vertical mill to prepare a raw material powder containing the aqueous sludge and/or waste, wherein the water content in the resulting mixture is adjusted to be within the range from 3% to 15% by weight, so that the comprehensive water content and material plasticity of the mixture in the vertical mill can be adjusted, and then calcining the obtained raw material powder containing the aqueous sludge and/or waste into cement clinker by a conventional means; or mixing and grinding coal briquettes and the aqueous sludge and/or waste to prepare pulverized coal containing the sludge and/or waste, so that the water content and plasticity of the coal can be adjusted and combustion performance of the coal can be improved, wherein the adding amount of the aqueous sludge and/or waste range(s) from 1% to 30% by weight of the coal briquettes. The present disclosure also provides a cement raw material powder and a pulverized coal prepared by said process.
The present disclosure relates to a process for recycling aqueous sludge and/or waste, comprising: adding, in a dry process cement production line, the aqueous sludge and/or waste into a raw material or into a vertical mill simultaneously with the raw material, and mixing and grinding the raw material and the aqueous sludge and/or waste in the vertical mill to prepare a raw material powder containing the aqueous sludge and/or waste, wherein the water content in the resulting mixture is adjusted to be within the range from 3% to 15% by weight, so that the comprehensive water content and material plasticity of the mixture in the vertical mill can be adjusted, and then calcining the obtained raw material powder containing the aqueous sludge and/or waste into cement clinker by a conventional means; or mixing and grinding coal briquettes and the aqueous sludge and/or waste to prepare pulverized coal containing the sludge and/or waste, so that the water content and plasticity of the coal can be adjusted and combustion performance of the coal can be improved, wherein the adding amount of the aqueous sludge and/or waste range(s) from 1% to 30% by weight of the coal briquettes. The present disclosure also provides a cement raw material powder and a pulverized coal prepared by said process.
PROCESS FOR RECYCLING AQUEOUS SLUDGE AND/OR WASTE
YIN WUJI (author)
2016-05-26
Patent
Electronic Resource
English
METHOD FOR RECYCLING SLUDGE AS BY-PRODUCT FROM WASTE CONCRETE RECYCLING PROCESS
European Patent Office | 2018
METHOD FOR RECYCLING SLUDGE AS BY-PRODUCT FROM WASTE CONCRETE RECYCLING PROCESS
| European Patent Office | 2017
METHOD FOR RECYCLING BYPRODUCT SLUDGE IN RECYCLED AGGREGATE PRODUCING PROCESS FROM WASTE CONCRETE
| European Patent Office | 2017