Cyclone type biomass powder combustor

Abstract

The invention relates to a high-efficiency cyclone type biomass powder combustor used for a boiler and a kiln. The combustor is composed of a water cooling sleeve, an end cover and the like. No hole that disturbs rotational flow is arranged between two ends of a cyclone combusting chamber. Biomass powder is put into the combustion chamber through a feeding hole and dispersed and pushed by cyclone of a cyclone hole so that wall-attached combustion and floating combustion are achieved. Raging fire erupts out of a fire and air hole. Ash is pulled out from an ash outlet hole. Coal particles are carbonized to be ash in a carbonization pool. A water exiting pipe, an air exhausting pipe, a water entering pipe, a sewage draining pipe and a water temperature sensor penetrate into the water cooling sleeve. The water cooling sleeve is used for regulating furnace temperature, recycling heat and safety protection. An igniter starts a combustion process. Combustion situations are observed from a fire observation hole. A safety valve ensures safety. A furnace temperature sensor detects furnace temperature. The problems that a rotation flow field is disturbed due to blowing-in from multiple air holes, bunkers are not fully combusted; slag short out and escaping happen, residues are condensed and formed at the air holes and the problems of coal particle coking, insufficient combustion and dust pollution caused by material particles, furnace temperature, flow speed, communication of the feeding hole and the fire and air hole and the like are basically solved.

Description

technical field [0001] The invention relates to powder fuel combustion equipment, in particular to cyclone combustion equipment which uses biomass powder as fuel to realize efficient and clean combustion. Background technique [0002] According to the statistics of the National Energy Administration, my country's energy consumption in 2009 reached 2.146 billion tons of standard oil, accounting for 19.22% of the world's total energy consumption, making it the second largest energy consumer in the world. The depletion of fossil energy and its combustion pollution have become major issues in my country's economic and social development. To this end, the state encourages the development of the biomass energy industry to ease the pressure on energy and pollution. [0003] The total amount of biomass energy produced by plants through photosynthesis is 140-180 billion tons per year, which is equivalent to 10 times the current total annual energy consumption in the world. Its effe...

AI Technical Summary

Problems solved by technology

[0012] The technical problems to be solved by the present invention are: due to the air supply from multiple openings in the axial direction of the combustion chamber, fuel combustion is not clean, slag escapes due to short circuit, tuyere condensation and slagging, etc.; carbon particles caused by factors such as particle size, furnace temperature, and flow velocity Unclean combustion and dust pollution; incomplete combustion and dust pollution caused by the feeding hole directly connected to the fire hole

Images