Notes

ANALYSIS OF ENERGY-SAVING CAUSED BY USING BIOMASS FUEL IN COAL-FIRED BOILERS
EVALUATION OF ENERGY-SAVING BROUGHT ON BY USING BIOMASS FUEL IN COAL-FIRED BOILERS

ANALYSIS AND BURNING CHARACTERISTICS OF BIOMASS FUELS


The supposed biomass fuel is a fuel that consists of organic materials such as plant products as well as animal waste, and is the new name for the oldest fuel. Usually speaking, we state that the chaff, timber cutting, stem-shaped crops, peanut coverings, bark, sawdust, etc, are the fuels frequently utilized in the farming society in the past.

As the market develops gradually, it is deserted, and now it is located that these fuels are generated. The contamination is much less than the main fuel of modern-day industry - coal. So in the past few years there have been lots of central heating boilers devoted to biomass fuels, and several coal-fired boilers have been exchanged biomass fuels, however few examples of fuels can be totally used.

The unstable matter as well as H content of biomass fuel are high, indicating that it is simple to shed and burns fast. It can adapt to central heating boilers with high water-cooling conditions in the furnace, as well as at the same time produce even more flue gas than coal, so the heating system is better than regular coal-fired central heating boiler. Bigger.

It is additionally due to the high web content of unstable matter as well as H, a huge amount of water vapor is produced in the fuel, a big quantity of warmth is taken in, as well as the C material is reasonably tiny, so the low calorific value of the biomass fuel is relatively low. The same central heating boilers, such as fuel, are biomass, which requires nearly twice as much fuel as bituminous coal.

Biomass fuel growth as well as burning qualities

Biomass fuels are popular as a by-product of farming and forestry products. Making use of biomass fuels is a procedure that turns waste right into treasure. Biomass fuels originate from a variety of sources and also are readily available for boilers in the agro-processing sector. China affixes fantastic significance to the advancement and also usage of bioenergy.

Biomass fuel pellet items are still rarely utilized in China. We are mostly shedding directly, as well as the fuel combustion standing is not optimistic, as well as the fuel calorific value utilization is still extremely reduced.


Since biomass fuel itself is considered to be waste utilization, it is not taken seriously from the administration of the firm to the monitoring of the government for its really efficient usage.

Condition of biomass fuel used in coal-fired boilers

In the huge backwoods, the products we made use of to call biomass fuels were melted in the fields and made use of as plant foods to make white smoke anywhere in the field and contaminate the environment.

When using biomass fuel, most of these units of use do not make use of the biomass fuel, so the boiler room is often "smoke-smoke" when melting, the fuel is accumulated indiscriminately, and also the application of fuel calorific worth is really low.

The soot generated throughout the burning process usually obstructs the flue, creating the central heating boiler to melt on the typical fire, triggering waste, and the boiler outcome is usually not enough.

Thermal efficiency examination of coal-fired central heating boilers using biomass fuel The central heating boiler thermal effectiveness basic examination is a way to determine the thermal efficiency of the central heating boiler using central heating boiler thermal back-balance.

The supposed central heating boiler thermal counterbalance is to determine the power loss of different components as well as forms of central heating boiler procedure, and also subtract the percent of these energy losses to acquire the boiler thermal efficiency.

This approach can much better identify the key point of energy waste in the central heating boiler procedure process, and can comprehend the key to resolve the boiler power effectiveness issue via discovery as well as analysis, so as to recommend services according to local conditions.

5 Ideas on utilizing coal-fired central heating boilers to improve central heating boiler thermal efficiency According to the above energy loss discovery, the primary energy efficiency issues of many coal-fired boilers making use of biomass fuel are:

1. The exhaust gas temperature is really high, typically getting to above 400 ° C, and the main biomass fuel remains to shed in the tail pipeline;

2. Richi machine of the gas is not entirely shed, and the CO web content of the tail flue gas is high. Because of the flying of the fuel, the regional oxygen supply is lacking, so that the gas is not entirely burned.

3. The warm loss of the solid insufficient burning is high, additionally due to the fuel flying. As well as melt, and also some do not melt entirely into the smokeshaft.

About these problems, the complying with boiler reform proposals are recommended:

1. Purely regulate the air quantity and also heater negative stress, lower the flue gas flow rate, and also reduce the fuel fluttering speed.

2. Increase the heater volume to boost the fuel amount to ensure that the result will not be because of the use of biomass. The fuel is undoubtedly lowered, all the furnace arcs are removed, the biomass is simple to stir up, the heater arc is not very reliable, and also the ash deposit is little, as well as the grate height can additionally be decreased.

3. The additional air is added at the leave of the heater to obstruct a big quantity of fuel from flying away. As well as enhance the oxygen material in the smoke path to ensure that the combustion can continue efficiently.

Verdict

With the wide application of biomass fuels, the re-election of coal-fired central heating boilers with biomass fuels has actually ended up being specifically important. The automation of biomass fuels will likewise be developed. pellet filament extruder is beneficial to China's present power application framework as well as is conducive to energy saving. The basic nationwide policy of consumption.


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