【正文】 Grate speed is adjusted according to coal, and with the change of load, grate speed and load change must be patible, but adjusting the grate speed should also be noted that the characteristics of coal, anthracite grate speed should not be too time fast, otherwise it would extend the preheating section on fire, burn section not plete, inplete bustion of mechanical damage q 4 to increase or even cause fire off a low volatile anthracite steam during normal operation for the case of stable bustion. Grate speed of the general control of 4 ~ 7 m / h at about the speed of adjustment so that the whole grate grate surface layer have the fire burning. And climbed over the back of the eagle Rail basically burned through the slag pared to stress here is that the boiler running, the grate speed to maintain a balance, not too much adjustment range, will destroy the unsteadiness of the bustion stable. The allocation of the fire burning operation In the chain furnace, fuel is ignited side. Fire conditions, especially anthracite anthracite fire conditions are relatively poor in the whole chain furnace bustion process, the need to manually dial the help of the fire. Anthracite chain furnace running, fireman generally be conducted following the fire call: ① low volatile anthracite coal particles in the proportion of large, relatively strong seam must be in place to facilitate allocation of coal bustion fire flip and burn: ② When the fire on the bed when there were flames Burner to Burner Pa eradication of fire bed flat to keep fuel in the fire bed flat to stable bustion: ③ before the discovery of iron slag have an eagle over the fire, unburned fuel is also a long time, but also were allocated to the fire, to use poker flip slag slag layer and the reversal of the grate in front of some of the benefit of burnout. In practice we found that the chain for anthracite stove, the flames can not only eliminate crater, the promotion of fuel burn, and fire off when dealing with coal to help fuel the fire also played an important role. Found under the smoke temperature drop before the arch. Grate the front of the fire is not doing too good, would increase in the grate back of the air volume air chamber and immediately call the fire in the grate back to flying out of a lot of hot carbon fuel bed with the front air guide the formation of red coal tablets of Rain covers the Department of Health and coal on the fire bed to help fire, and flip to facilitate burn coal. Changes in coal, water too, grate too fast, too much negative pressure in furnace and other circumstances, are prone to fire off fire off phenomenon, in addition to fan the flames of people, we must also off the door or off a small stack of small adjust the door draft fan. So that the positive pressure chamber to raise the furnace temperature. Artificial flames not be lightly set aside, but fan the flames to light, stability. Anthracite furnace in the normal operation 。s bustion methods of operation and have great relationship skills. Focuses in particular low volatile anthracite Anthracite Ⅱ characteristics and burning low volatile anthracite chain adjustment and operation of the bustion boiler relevant issues. Composition and properties of coal with geological conditions and burial depth and different years, so the performance of different bustion characteristics are buried years longer, deeper level of carbonation, the more carbon, while hydrogen, oxygen content was less. This carbonization process carried out by the formation of shallow and deep variety of coal were peat, lignite, anthracite and bituminous coal such as anthracite coal surface gloss black with bright, smokeless bustion, only a short blue flame as anthracite the lowest content of volatile matter, volatilization temperatures are high, slow release, and carbonation levels deep, so fire is very difficult, not easy to burn, in the I, Ⅱ, Ⅲ class Anthracite, Ⅱ Anthracite V minimum ignition temperature of the highest less likely to burn, is very difficult to fire it extremely difficult to burn a coal. Practice shows that can adapt to the chain of Anthracite Ⅱ bustion boiler, can adapt to the Class Ⅲ bustion of anthracite and lean coal Anthracite Ⅱ main features are: (1) high carbonation, low volatile, generally V 2% ~ 4%, the chemical properties of poor bustion, low thermal conductivity, ignition temperature of 900 or more (I type about 800 ℃, Ⅲ class of about 700 ~ C). (2) more than the end of fine coal dust, 0 ~ 3 mrn litter accounted for 70% or more, and some coal particle size of l mm in more than 40%. (3) quality of hard and brittle, burning in the grate will explode into powder. Conversion of water to 3%. Ash melting characteristics of the temperature t 1 ~ t 3 = 1100 ~ 1450 R2, low sulfur, high calorific value. Adjustment of bustion Anthracite in the chain to make the furnace burn more pletely, we must maintain the stability of bustion conditions to maintain stable bustion conditions: a higher than Jiong Furnace ignition temperature of coal, with the appropriate length and the effective area of grate so that anthracite When asked the burning enough room, there is sufficient amount of air and fuel and air mix to burn with these conditions, anthracite chain furnace design has fully considered the bustion characteristics of anthracite, and the burning of adjustment must be running for the anthracite bustion characteristics, to ensure a good burn anthracite conditions to maintain bustion stability. Chain grate bustion output depends on the upper coal seam thickness, grate speed and air volume of 3 factors in accordance with the requirements of bustion, which three factors alone can not be changed arbitrarily, but should be reasonable and coregulation is good or bad depends on the operator technology proficiency depends on coal seam thickness, and particle size of anthracite coal, especially coal as Class Ⅱ no Jiong Vd, r 5%, and the proportion of c