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1. Working pressure:0.7-1.6MPa, 2. Thermal efficiency :more than 80%, 3. Low fuel consumption, 4.Steam temperature:170-204 - details see: https://www.machineto.com/high-efficiency-industry-coal-gas-oil-fired-steam-boiler-10212328

High Efficiency DZL Serise Coal Fired Steam Boiler

DZL series coal fired steam boiler is single drum three-return water tube and fire tube steam boiler. The coal fired steam boiler uses the vaulted tube plate, spiral gas tube to make the thermal efficiency higher and output capacity sufficient.

1. Features of Coal Fired Steam Boiler

1. The output capacity is sufficient and continuous:

Because of adopting the high efficiency heat transmits spiral gas tube, so the real output capacity of boiler is 10%-15% higher than rated. And either output capacity or thermal efficiency will not low down after running for a while.

2. Small size, less investment:

The height of the coal fired steam boiler is less than other coal fired horizontal steam boiler which has the same capacity. So steam boiler room will spend much less money.

3. No special protection when power off:

The hot water is mixed cycle and the water capacity is large, so the special protection is no need for damage caused by vaporization when power off.

4. The efficiency of the steam boiler is higher:

The spiral gas tube is placed inside of boiler, so there will be no cool air entre. The working rate of this boiler is highest of all.

5. Heating fast:

There many spiral gas tubes in the boiler and almost half of the coal fired steam boiler shell can be heated, so the temperature can up soon.

6. Safe and reliable:

The special structure and materials make the coal fired steam boiler being with high safety.

7. Primordial dust emissions density is low:

The volume of the coal-fired steam boiler is large and there is a dust separation device, so the primordial dust emissions density will be controlled much lower than the standard allowed.

8. Easy to install:

The installation charge is little and the installation time is short.

1). Uses quick fitting structure, very easy for installation and save boiler room space.

2). The boiler is composed of 2 main parts: the upper body which is for heat exchange, and lower body for fuel combustion.

3). Boiler parts are assembled according to the international standards as customers requirements, including GB, ASME, EN, IBR and so on. Safety is the most concerned issue for our customers.
4). Aftersale Services:

we provide supervision service to customers for installation and commissioning work so the new boiler can operate quickly after delivery.

5). Economic for long term operation

With reasonable design to the boiler structure and equipped with quality auxiliary machines, our boiler saves a lot in fuel consumption and can reach the highest efficiency as designed for long term operation.

6). Low cost on maintenance

As we use international standard material for assembling boiler parts and with high quality auxiliary machines matched to the boiler, so the impact of maintenance to users’ production is reduced to the minimum level.

3. Technical Parameters:

Boilermodel	Rated capacity	Rating pressure	Feed water temperature	Steam temperature	Active grate areas	Exhausting temperature	Thermal efficiency	Fuel consumption	Weight	Dimension	Delivery model
	t/h	MPa	°C	°C	M2	°C	%	Kg/h	t	mm
DZL1-1.0-AII	1	1.0	20	184	1.85	157	80	118	14.2	5488×2200×2832	Half Assembled
DZL2-1.0-AII	2	1.25	20	194	3.4	163	80	238	23.2	5900×2500×3256
DZL4-1.25-AII	4	1.25	60	194	5.18	180	80	472	28	6829×2550×3484
DZL6-1.25-AII	6	1.25	60	194	7.55	166	80	685	47.6	7695×3180×4074
DZL10-1.25-AII	10	1.25	105	194	12	151	80	1128	56	7746×3773×3441
DZL15-1.25-AII	15	1.25	105	194	18	161	81	1698	18.8	8650×2300×2500
DZL20-1.25-AII	20	1.25	105	194	22.9	150	81	2241	19.1	8915×3373×3337
DZL30-1.25-AII	30	1.25	105	194	27.5	157	81	3380	25.6	7942×2440×2550