Boiler flushing wastewater intelligent ash recycling system

Abstract

The invention relates to a boiler flushing wastewater intelligent ash recycling system which comprises a boiler, the lower portion of the boiler is connected with a water collecting tank through a boiler flushing pipeline, a stirrer is arranged in the water collecting tank, the outlet end of the water collecting tank is connected with a first stop valve through a pipeline, and the outlet end of the first stop valve is connected with a sewage pump. The outlet end of the sewage pump is connected with a second stop valve, the outlet end of the second stop valve is connected with a check valve, the outlet end of the check valve is connected with an adjusting valve, the outlet end of the adjusting valve is connected with a rotational flow station, the outlet end of the rotational flow station is connected with a gypsum dehydrator, and a gypsum channel is formed in the upper portion of the gypsum dehydrator. Gypsum is collected in the gypsum tower, a water flow channel is formed in the lowerportion of the gypsum dehydrator, the water flow channel is connected with the absorption tower, and an electric dust removal device is further arranged on the outer side of the channel. The system has the advantages that the cofferdam is convenient to assemble, disassemble and desilt, and the environment is protected.

Description

technical field [0001] The invention relates to the technical field of recovery of boiler wastewater, in particular to an intelligent ash recovery system for boiler flushing wastewater. Background technique [0002] At present, before the maintenance of the main body of the large-capacity boiler, it is necessary to wash the heating surface such as the water-cooled wall. The ash and slag washed down by traditional water are mainly collected by setting up a cofferdam with zero meters of water to collect the waste water. After the washing is completed, the ash and slag are concentrated. For cleaning work, due to the large amount of wastewater generated by flushing, the cofferdam covers a large area, and the on-site dredging work environment is poor in the later stage of maintenance, and the sludge seriously pollutes the environmental sanitation, which has brought certain negative impacts on the enterprise. In addition, only the cofferdam is built for each maintenance The cost o...

AI Technical Summary

Problems solved by technology

[0002] At present, before the maintenance of the main body of the large-capacity boiler, it is necessary to wash the heating surface such as the water-cooled wall. The ash and slag washed down by traditional water are mainly collected by setting up a cofferdam with zero meters of water to collect the waste water. After the washing is completed, the ash and slag are concentrated. For cleaning work, due to the large amount of wastewater generated by flushing, the cofferdam covers a large area, and the on-site dredging work environment is poor in the later stage of maintenance, and the sludge seriously pollutes the environmental sanitation, which has brought certain negative impacts on the enterprise. In addition, only the cofferdam is built for each maintenance The cost of dismantling and dredging is high, and it takes a long time to build the cofferdam in the early stage, and the demolition and dredging operation in the later stage; therefore, an intelligent ash recovery system for boiler flushing wastewater that is convenient to build and dismantle the flushing cofferdam and dredging, and protects the environment is provided. is very necessary

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