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Shankou Industrial Park, Tai'an City, Shandong Province

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4-ton boiler

Product Description: The new DZL series steam boiler is a new product that currently replaces old boilers. It uses heat transfer elements - threaded s

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Product Description
The new DZL series steam boiler is a new product that currently replaces old boilers. It uses heat transfer elements - threaded smoke tubes, which enhance heat transfer, improve heat transfer coefficient, select appropriate flue gas flow rate, and make the boiler's thermal efficiency 6-8 percentage points higher than the national standard.
The arched tube plate and threaded smoke tube transform the boiler shell from a quasi rigid body to an elastic body, which, together with the wing shaped flue, completely avoids the problem of cracking in the high-temperature tube plate of traditional water fire tube boilers. A reasonable water circulation loop has increased the water velocity of the riser and avoided water-cooled wall bursting.
By using inertial separation of smoke and dust inside the furnace, supplemented by a dust collector, the boiler's dust concentration meets the requirements of Class I regions in China.
The use of energy-saving and strong radiation furnace arches can ensure stable combustion of bituminous coal and blended coal.
Adopting high standards and high-quality auxiliary equipment, accessories, and automatic control devices to ensure the safe and stable operation of the boiler, while reducing the labor intensity of the stoker.

Technical parameters of the new DZL series steam boiler

Project, content, model		DZG1- 0.7-AII	DZL1- 1.0-AII	DZL2- 1.25-AII	DZL4- 1.25-AII	DZL6- 1.25-AII	DZL8-1.25-AII	DZL10- 1.25-II	DZL15- 1.25-AII	DZL20- 1.25-AII
Rated evaporation capacity (t/h)		1	1	2	4	6	8	10	15	20
Rated working pressure (Mpa)		0.7	0.7	1.25	1.25	1.25	1.25	1.25	1.25	1.25
Rated steam stability (℃)		169	169	194	194	194	194	194	194	194
Water supply temperature (℃)		20				105
Radiated heating area (㎡)		3.47	3.47	6.83	12.24	19.2	22.1	24.15	34.5	53.7
Convective heating area (㎡)		20.09	20.09	39.25	89.55	115.3	158.8	168.2	339.9	411.8
Heating area of economizer (㎡)		10.56	10.56	21.12	28.16	78.48	104.6	130.8	150.4	188
Effective area of grate (㎡)		1.51	1.86	3.16	5.18	9.1	9.35	11.53	16.24	22.84
Design coal type		AII
Coal consumption (kg/h)		155	153	306	611	863	1153	1430	2165	2868
Design thermal efficiency (%)		76.9	76.94	77.26	78.45	77.26	79.9	79.7	80.5	81.1
Maximum transport size (length * width * height) (m)		4.8* 2.25*2.82	5.48* 2.25*2.82	5.69* 2.70*3.32	6.73* 2.95*3.54	7.55* 2.95*3.7	7.33 3.8	7.23.53. * 7.532.6	7.333.37 3.328.93.37 *2.5	7.813.37 3.519.44 3.77*2.6
Maximum transport weight (t)		13.21	15.3	18.5	27.8	39	45	23/17	25/17	28/23
induced draft fan	model	Y9-19-6.3C	Y9-19-6.3C	GY2-15	Y6-41-7.1C	Y6-41-10C	Y9-26-10D	Y6-41-11.2D	Y6-41-11.7C	Y6-41-12.2D
induced draft fan	Motor power (KW)	5.5	5.5	11	18.5	37	45	55	75	110
blower	model	4-72-3.3A	4-72-3.2A	GG1-15	G6-41-6.4A	G6-41-7.1A	4-72-5A	G6-41-8.5A	G6-41-11.7A	G5-56-9A
blower	Motor power (KW)	2.2	2.2	3	5.5	7.5	15	18.5	30	37
Electric feed pump	model	1W2.4-10.5	1W2.4-10.5	11/2GC-5*7	11/2GC-5*7	2GC-5*5	2GC-5*6	11/2-6*6	DG25-30*6	DG25-30*6
Electric feed pump	Motor power (KW)	3	3	7.5	7.5	15	18.5	22	30	30
Furnace brand speed control box	model		WT-4	WT-4	WT-5	WT-6	WT-10	WT-10	WT-20	WT-20
Furnace brand speed control box	Motor power (KW)		0.55	0.55	0.55	0.75	1.1	1.1	1.5	1.5
Slag removal machine	model		GBC-1	GBC-2	GBC-4	GBC-6	GBC-8	GBC-10	GBC/S-15	GBC/S-20
Slag removal machine	Motor power (KW)		1.1	1.1	1.1	1.5	1.5	1.5	2.2	2.2
Coal feeder	model		FS-1	FS-2	FS-4	FS-6	FS-8	FS-10	FS-15	FS-20
Coal feeder	Motor power (KW)		1.1	1.1	1.1	1.5	1.5	1.5	2.2 (Brake Motor)	2.2 (Brake Motor)

Technical parameters of the new DZL series steam boiler

Project, content, model		DZG4- 1.6-AII	DZL6- 1.6-AII	DZL8- 1.6-AII	DZL10- 1.6-II	DZL15- 1.6-AII	DZL20-1.6-AII	DZL25- 1.6-AII	DZL30- 1.6-AII
Rated evaporation capacity (t/h)		4	6	8	10	15	20	25	30
Rated working pressure (Mpa)		1.6	1.6	1.6	1.6	1.6	1.6	1.6	1.6
Rated steam stability (℃)		204	204	204	204	204	204	204	204
Water supply temperature (℃)		20	105
Radiated heating area (㎡)		12.24	19.2	22.1	24.15	34.5	53.7	99.2
Convective heating area (㎡)		89.55	115.3	158.8	168.2	339.9	411.8	457.8	628.6
Heating area of economizer (㎡)		28.16	78.48	104.6	130.8	150.4	188	295	413
Effective area of grate (㎡)		5.18	9.1	9.35	11.53	16.24	22.84	24.7	26.88
Design coal type		AII
Coal consumption (kg/h)		615	870	1153	1440	2165	2868	3550	4254
Design thermal efficiency (%)		78.45	77.26	79.9	79.7	80.5	81.1	81.2	81.5
Maximum transport size (length * width * height) (m)		6.732.953.54	7.552.953.7	7.333.8	7.23.53.7 7.52.32.6	7.333.373.32 8.93.372.5	7.813.373.51 9.443.772.6	8.472.62.74 128.028.9	92.62.85 128.29.7
Maximum transport weight (t)		28.3	39.8	46	24/17	26/20	29/23	30	35
induced draft fan	model	Y6-41-7.1C	Y6-41-10C	Y9-26-10D	Y6-41-11.2D	Y6-41-11.7C	Y6-41-12.2D
induced draft fan	Motor power (KW)	18.5	37	45	55	75	110
blower	model	G6-41-6.4A	G6-41-7.1A	4-72-5A	G6-41-8.5A	G6-41-11.7A	G5-56-9A
blower	Motor power (KW)	5.5	7.5	15	18.5	30	37
Electric feed pump	model	11/2GC-5*9	2GC-5*7	2GC-5*7	21/2-6*8	DG25-30*8	DG25-30*8
Electric feed pump	Motor power (KW)	11	22	22	30	45	45
Furnace brand speed control box	model	WT-5	WT-6	WT-6	WT-10	WT-20	WT-20
Furnace brand speed control box	Motor power (KW)	0.55	0.75	0.75	1.1	1.5	1.5
Slag removal machine	model	GBC-4	GBC-6	GBC-8	GBC-10	GBC/S-15	GBC/S-20
Slag removal machine	Motor power (KW)	1.1	1.5	1.5	1.5	2.2	2.2
Coal feeder	model	FS-4	FS-6	FS-8	FS-10	FS-15	FS-20
Coal feeder	Motor power (KW)	1.1	1.5	1.5	1.5	2.2 (Brake Motor)	2.2 (Brake Motor)

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