A kind of low volatile briquette coal environmental protection and energy-saving furnace

Abstract

The invention discloses a low-volatile briquette coal environment-friendly and energy-saving furnace. A vibration fire grate, an induced air device, a front furnace wall, a rear furnace wall, a primary air heater, a tail flue, a heat exchange water tank and the like are included. The low-volatile briquette coal environment-friendly and energy-saving furnace has the functions that a forward combustion furnace hearth structure is improved, furnace inner gas disturbance is enhanced, black smoke emission is reduced, a smoke and ash waste heat recycling device is additionally arranged, primary airis preheated, the low-volatile fuel combustion capability is enhanced, and clean and efficient gradient utilization of briquette coal is promoted. In the low-volatile briquette coal environment-friendly and energy-saving furnace, the hearth structure is novel; compared with a traditional forward combustion furnace, the furnace temperature can be increased, the furnace inner gas disturbance is enhanced, the briquette coal combustion effect is enhanced, and the briquette coal burn-off rate is increased; a self-heating secondary air system and a waste heat recycling device are introduced, the combustion efficiency of the furnace is improved, a frequency-adjustable vibration fire grate and a wind-frequency-changeable air supply device are applied, the fire power adjusting capability of the furnace is improved, the furnace is integrally high in adaptability to multiple fuels, and the characteristics of economy and practicability are achieved.

Description

technical field [0001] The invention belongs to the field of civil briquette combustion, and in particular relates to an environment-friendly and energy-saving briquette furnace with low volatile content. Background technique [0002] Civilian loose coal combustion is the main living energy for rural and township residents in northern my country, especially in the heating season, it is the main way for residents to stay warm in winter. However, due to the direct-fired direct-exhaust combustion method of civilian stoves, the air pollution is serious, which is one of the main causes of smog. According to the combustion method, stoves can be roughly divided into normal-burning stoves, reverse-fired stoves, and decoupled-burning stoves. Anti-burning furnace and decoupling furnace are mainly aimed at burning solid fuel with high volatile content, which can effectively reduce black smoke and NO x emission. However, the effect is not significant for fuels such as anthracite and ...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide an environmentally friendly and energy-saving low-volatile coal furnace, which optimizes the existing low-volatile coal combustion in the furnace, which is difficult to fully and stably burn, and the heat loss of exhaust smoke and slag discharge is too high. In the furnace structure of the stove, add primary air preheater, self-heating secondary air and waste heat recovery system

Images