The correct selection of a grate with excellent performance and its scientific application are the keys to improving the gasification intensity of the gas furnace and reducing coal consumption. A grate with good performance should have the following functions:
(1) The air distribution is reasonable, so that the furnace section can achieve uniform air distribution.
(2) The ventilation area is appropriately larger, because there is only a large ventilation area (the ventilation area should be calculated as the narrowest area between the furnace layers and perpendicular to the interior of the ventilation opening, and it is impossible to calculate the area of the furnace that contacts the fuel and ash. Scientifically reasonable) grate can achieve high gasification intensity.
(3) It has the functions of holding slag, guiding slag, pushing slag, breaking slag, and discharging slag.
(4) Long service life. The early grates were made of cast iron, which had a short service life and had to be replaced every 5 to 6 months. Now most of them are made of cast steel, which has a long service life and a good grate can be used for more than 2 years.
