A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for preparing marsh gas and producing sintered bricks by using municipal sludge
The invention relates to a method for preparing marsh gas and producing sintered bricks by using municipal sludge. The method comprises the following steps: supplying steam to a dry anaerobic fermentation tank from a steam boiler, carrying out dry anaerobic fermentation on the municipal sludge, and producing marsh gas and anaerobic fermentation sludge after fermenting; conditioning, modifying and dewatering the anaerobic fermentation sludge, supplying the anaerobic fermentation sludge to a drying device for drying, then crushing the anaerobic fermentation sludge to obtain dry sludge powder; mixing the dry sludge powder with building waste soil and producing brick blanks by extrusion molding; and supplying the brick blanks into a system for producing bricks by using sludge, drying and roasting to produce sintered bricks. The smoke in the system for producing bricks by using sludge can be simultaneously used as the heat source of the steam boiler and the drying device; the marsh gas produced after fermenting the municipal sludge can be used as a heating fuel of the system for producing bricks by using sludge. The method has the technical effects that almost no secondary pollution is generated when the municipal sludge is treated, and the comprehensive utilization of energy can be implemented.
Method for preparing marsh gas and producing sintered bricks by using municipal sludge
The invention relates to a method for preparing marsh gas and producing sintered bricks by using municipal sludge. The method comprises the following steps: supplying steam to a dry anaerobic fermentation tank from a steam boiler, carrying out dry anaerobic fermentation on the municipal sludge, and producing marsh gas and anaerobic fermentation sludge after fermenting; conditioning, modifying and dewatering the anaerobic fermentation sludge, supplying the anaerobic fermentation sludge to a drying device for drying, then crushing the anaerobic fermentation sludge to obtain dry sludge powder; mixing the dry sludge powder with building waste soil and producing brick blanks by extrusion molding; and supplying the brick blanks into a system for producing bricks by using sludge, drying and roasting to produce sintered bricks. The smoke in the system for producing bricks by using sludge can be simultaneously used as the heat source of the steam boiler and the drying device; the marsh gas produced after fermenting the municipal sludge can be used as a heating fuel of the system for producing bricks by using sludge. The method has the technical effects that almost no secondary pollution is generated when the municipal sludge is treated, and the comprehensive utilization of energy can be implemented.
Method for preparing marsh gas and producing sintered bricks by using municipal sludge
YANG XIAOBING (author)
2015-08-19
Patent
Electronic Resource
English
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