The effect and process scheme for combustion of chain-boiler when the quality of coal changed;

Comprehensive reconstruction of chain grate boiler for energy saving and consumption reduction

In consideration of the very frequent load fluctuations of chain grate boilers with a steam capacity of 10 t/h and lower a dynamic mathematical model was set up by using a modular modeling method for the steam-water system and combustion system of a 10 t/h chain grate boiler.

Imperfections that appear in stratified combustion of chain grate boilers have successfully been dealt with, to raise the boilers output and efficiency and also to alleviate contamination caused by smoke and dust.

New type loose coal equipment of chain boiler;

Application Of Pulverized coal combustion technology in chain boiler

This article introduces several measures of improving the heat transfer path of the chain boiler, and points out that the reasonable distribution arrangement of the heated surface, preventing fume to short circuit, keeping clean the heated surface and the adding tail heated surface could improve the thermal efficiency so as to obtain obvious result of energy saving.

It is ameliorated to equipment of chain bolier supply coal by the technology of delamination burnt, the coal burnt on stove row delamination burnt, coal powder become suspend sate in the boier, it make the coal burnt completeness, so reduce the contain carbon of slag, that improve thermal efficiency of the boiler, it is a way to reduce energy consumption.

A discussion is made on the technical renovation in the fields of arch structure, heat-resistant mat reinforcement, refractory of both arch and roof, and fixed mode of shelf rest for skimmer in the coal-fired chain-grate boiler with evaporation capacity of 35t/h.

Due to very low efficiency and low-level automation of most of current domestic chain-grate boiler, an advanced energy-saving automatic control and supervisory system suitable for chain-grate boiler was developed.

Comparing with CFB boiler, the chain-grate boiler with lower thermal efficiency (50%～60%), higher unit coal consumption(more than 180 kg/tce)and lower draw-off rate(about 70%) can\'t meet the requirements of the energy conservation and environmental protection.