What is grate firing system?
The grate firing system consists of a horizontal moving grate for wood chips and other solid biomass. The maximum thermal power output is 240 kW. The fuel feeding from the fuel storage is managed by two stokers. The primary air is splitted in two different zones to improve the combustion.
What is the function of grate?
A furnace grate is provided in a steam boiler furnace for supporting the solid fuel in the furnace. Grate is so designed that it can also allow air to admit air in the solid fuel for combustion.
Where grate is located in boiler?
A grate, in a boiler, is a place in the combustion chamber upon which fuel (wood or coal) is burnt.
What is furnace in boiler?
The furnace is the most important part of a boiler. Its primary function is to provide adequate space for fuel particles to burn completely and to cool the flue gas to a temperature at which the convective heating surfaces can be operated safely. Here the heat transfer takes place beyond the combustion zone.
What is grate technology?
The incineration process converts waste into ash, flue gas, and heat. The type of thermal WTE technology most commonly used worldwide for municipal solid waste is the moving grate incineration. The hot combustion gases are commonly used in boilers to create steam that can be utilized for electricity production.
What is grate and ash pit?
: a pit for ashes especially under a grate.
What is Travelling grate?
Traveling grates are designed for the use of granulated fuels, treated or not, of medium size. The biomass used for combustion can have a high ash content and a medium-low percentage of humidity.
What is difference between boiler and furnace?
The easiest way to remember the difference is to understand that a furnace uses air and a boiler uses water to distribute heat throughout your home. A furnace heats air that is distributed throughout the house via a blower motor and the home’s duct system. The boiler uses hot water to heat your home.
What is rotary kiln incinerator?
Rotary kiln incinerators are cylindrical, refractory-lined steel shells supported by two or more steel trundles that ride on rollers, allowing the kiln to rotate on its horizontal axis. The refractory lining is resistant to corrosion from the acid gases generated during the incineration process.
How does a moving grate incinerator work?
Moving grate incineration requires that the grate be able to move the waste from the combustion chamber to allow for an effective and complete combustion. The waste then moves towards the ash pit and it is then treated with water, cleaning the ash out. Air then flows through the waste, cooling the grate.
