Biomass particle/briquette coal air preheating environmental protection stove with S-shaped exhaust gas flow path

Abstract

The invention discloses a biomass particle / briquette coal air preheating environmental protection stove with an S-shaped exhaust gas flow path, and relates to the technical field of household stove combustion and the environmental technical field. The aim is to achieve biomass briquette or coal briquette burning to meet the requirements for daily hot water and cooking of residents, meanwhile, emission of NOx and fly ash is reduced, the fuel utilization efficiency is improved, and clean combustion is achieved. The biomass briquette / briquette coal S-shaped air preheating environmental protectionstove comprises a shell, the front wall of the shell is provided with a furnace door, the shell is internally provided with a hearth and an upper fire grate, the upper fire grate divides the hearth into an upper hearth body and a lower hearth body, the bottom of the lower hearth body is provided with a lower fire grate, the lower fire grate is provided with a ventilation opening, the top of the upper hearth body is provided with a cooking range, the back side of the hearth is provided with a middle flue, the upper portion of the upper hearth body communicates with the upper portion of the middle flue, the lower portion of the middle flue communicates with a tail flue, and the top of the tail flue communicates with a chimney.

Description

technical field [0001] The invention belongs to the field of household boiler combustion technology and the field of environmental technology, and in particular relates to an S-shaped flue gas process biomass particle / coal air preheating environmental protection stove. Background technique [0002] Coal-fired agricultural stoves are commonly used in northern rural areas for heating in winter. The agricultural stoves used on a large scale now generally use a single combustion chamber with a cylindrical furnace and a water tank around it. The air required for combustion enters the furnace from below through the grate Mixed combustion with fuel is not conducive to the burnout of fuel and the reduction of NOx. There is no flue gas purification device at the chimney outlet. The flue gas emitted contains more sulfur dioxide, nitrogen oxides, dust and unburned carbon, which is harmful to the air. a great deal of pollution. And the heating effect of this stove is not good, the util...

AI Technical Summary

Problems solved by technology

However, most of the civilian stoves are designed with coal as the main fuel, so the existing biomass fuel can only be used by large and medium-sized boilers, and it is difficult to apply to ordinary households

Here, please briefly explain why the current biomass fuel can only be used in large and medium-sized boilers

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