Composite filtering equipment for biomass gas

Abstract

The invention relates to a biomass fuel compound filtering device, comprising a water bath spray thrower, a heat interchanger and a dry filter. The invention is characterized in that the water bath spray thrower, the heat interchange and the dry filter form an integrated composite structure, and the inner part thereof is communicated from the upper part of the water bath spray thrower to a gas inlet room of the heat interchanger by a gas transmission pipeline, and then from a discharge chamber of the heat interchanger to the lower part of the dry filter; and an insulating layer is arranged between the water bath spray thrower and the dry filter. The designed structure is more compact, less space is occupied, and the installation is more convenient and rapid. Especially, the device has thecharacteristics that the water bath, spray and filtration of a filter screen are integrated, dry filtration and wet filtration are combined, several times of filtration and temperature reduction are combined, the technical process is efficient and convenient, and the filtration is more complete; therefore purer, cleaner and pollution-free fuel is obtained and the detarring rate reaches over 99%. In addition, the application is wide; especially, rural biomass wastes can be used as fuel and transported by pipes more rapidly, so that people in rural areas can use clean the fuel conveniently as urban inhabitants.

Description

technical field [0001] The invention relates to gas filtering, in particular to a biomass gas composite filtering device. Background technique [0002] At present, coal, oil, natural gas and other non-renewable resources are generally used as the main fuels in the world. Most of the fuels produce a large amount of harmful gases and smoke during the combustion process. However, biomass gasification equipment does not need to burn the fuel directly, but will A kind of equipment that produces flammable gas under the condition of oxygen deficiency; because biomass and organic waste are an inexhaustible resource, it can be used as waste and can be cleaned environment and reduce environmental pollution. [0003] However, as we all know, the combustible gas produced under the state of anoxic combustion contains a large amount of dust, wood tar and wood vinegar, and the most difficult problem hindering the development of biomass energy is the extraction of wood tar. [0004] Paten...

AI Technical Summary

Problems solved by technology

[0006] The structure of the gas filtering device is complex, scattered, occupying a large area, many technological processes, and heavy installation and maintenance workload, which increases the process cost, unsatisfactory gasification effect, and lower gasification efficiency

Images