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chain grate coal fired steam boiler, 1 reduce labor, 2 burning efficiency, 3steam sufficient, 4 automatically slag - details see: https://www.machineto.com/chain-grate-coal-fired-steam-boiler-10211787

chain grate coal fired steam boiler

DZL type boiler is a horizontal three return fire and water tube type boiler. There are two fire tubes in the boiler barrel , with both sides light pipe water-wall tubes; the chain grate which can feed coal by stocker/ and is equipped with drums, induced draft fan realize mechanical ventilation. Fuel from coal scuttle fell to grate stoker, along with the chamber into after burning, smoke after the upper chamber after arch, the smoke pass through behind of combustor, through up the combustor into the first tube bundle then get front smoke box ,then through the front smoke box into the second tube bundle then get to back smoke box , finally through the induced draft fan smoke the introduction into the flue, dust catcher and the chimney, the last row to the atmosphere. The boiler automation level is high, boiler water supply the automatic adjustment, high and low level alarm, low water level interlock protection, lead, blowers interlocking protection. Coal boiler, slag discharge operation mechanization, supporting auxiliary engine is complete.

digram drawing :

technology feature:

1.Smoke tube change single return instead of two return,avoid tube sheep crack coal boiler

2.With thread smoke tube ,increase the transfer heating efficiency steam boiler

3.Working steady .adjust easily ,steam presure is enough,thermal efficiency is high.

4.This coal boiler has dust remove function by itself.It's automatic coal fired steam boiler

5.Many kinds of coal is adaptable.

6.automatically control pressure:water level control :safety automatically chain control(boiler super pressure pretection,boiler water lever overloading protection,feed water pump ,induced draft fan ,air blower,slag machine ,reduction gears ,coal conveyor as so on when failure occurred ,automatic alarm start .

Technology data:

Model	Unit	DZL1-1.25M	DZL2-1.25M	DZL3-1.25M	DZL4-1.25M	DZL5-1.25M	DZL6-1.25M	DZL8-1.25M	Model
Rated transpiration rate	t/h	1	2	3	4	5	6	7	Rated transpiration rate
rated working pressure	Mpa	1.25	1.25	1.25	1.25	1.25	1.25	1.25	rated working pressure
thermal efficiency	%	85%	85%	85%	85%	85%	85%	85%	thermal efficiency
design fuel		pellet	pellet	pellet	pellet	pellet	pellet	pellet	design fuel
fuel comsumption	Kg/h	175	350	520	700	870	1040	1400	fuel comsumption
	length	3900	4800	5600	5900	6500	7100	7700
dimension mm	width	1810	2170	2430	2430	3200	3200	3200	dimension mm
	height	3850	4150	4700	4700	6000	6100	6200