How to improve the output of slag dryer machine
31 July, 2013 at 9:19 am in Buy & Sell
Slag dryer can dry slag, slag into the plant, moisture is generally about 25%, over a period of storage time, is more than 15%, in the use there is low yield, high coal consumption, high thermal efficiency, high power consumption, the machine moisture fluctuations, become a bottleneck restricting production.Ore dressing equipments mainly include cement mill,ball mill, rotary dryer,flotation machine,etc.
First, analyze the reasons
1, slag discharge of downpipe type, card material by artificial rock material flow when suddenly suddenly small, it is easy to empty a small amount of burning, it is easy to run a large quantity of water, resulting in large fluctuations in moisture drying material appears.
2, stove coal burning stove for the artificial hand large size, the incomplete combustion of coke easy, coupled with lax dryer stove, fire phenomenon caused by external series cylinder deformation, affecting the yield and quality of normal play.
3, slag dryer drying cylinder configuration L-type lifting plate, its agencies short, single form, so that the material inside the dryer tunnel there, do not form a material curtain, heat loss, dry and poor results.
Second, the technological transformation of existing problems
1. stable furnace temperature, increase the thermal efficiency of slag dryer
Original hand-fired stove fixed grate transformation of pulverized coal burning stove and furnace heightening lengthened, so that the volume of original stove 47.8m3, expanding to 57.2m3, ensure that its air temperature at 800oC ~ 1000oC range of stable supply.
2, improve the combustion of pulverized coal injection system, increasing coal crushing
The coal is crushed to ≤ 1mm after the bunker into the reservoir, used for drying stove, storage bunker under the disc feeder, drying the material according to the water to adjust the amount of coal, pulverized coal injection to the combustion chamber quantification.
3, stable feeding, additional disk feeder
The newly added disk feeder installed in the wet residue positions below, so that continuous and uniform feeding, unloading chute canceled.
4, plus slag dryer strong ventilation and sealing
In discharging slag dryer tail flap valve on the addition of downpipe to reduce short cold air leakage and heat loss phenomenon, slag dryer head contact labyrinth seal to eliminate the phenomenon of right cylindrical outer string of fire damage to the body, play thermal efficiency.
5, reasonable arrangement lifting plate
According to downstream dryer process, after analyzing re-design and layout feeding device, use modular lifting plate.
ore tube drier: http://www.hx-crusher.com/n255.html