DZL Series Coal Fired Steam Boiler

 Introduction:
New type DZL series coal fired steam Boiler is single drum parallel water and fire tube steam boiler,the combustion equipment is chain grate. Both sides of the wall around the furnace are radiation heating surface. Two wings of furnace are convective heating surface. Inside of the drum is threaded pipe convective heating surface. The furnace wall adopts the new technology of whole pouring molding of heat resistant concrete. The lateral of boiler body is shell of the three-dimensional shape.

This series of boiler adopts latest scientific research achievements,such as arched tube plate, thread smokestacks etc, solves the pot shell type boiler tube plate cracking, pan cone lower speed bulge, water-cooled wall tube explosion, low thermal efficiency, the output of coal quality issues such as insufficient, adaptability.

Application:
This DZL series coal fired steam boiler is ideal for heating, textile plant, rice mill, garment factory, utility or power plant, hospital, hotel, food & beverage, diaries, schools, chemical industry and more applications.

Technical Advantages:
1. It uses arched tube plate and thread smokestacks constituted into the drum, reduces the stress.The fire tube inside of tube plate is single return instead of two-
    return, solves the problem of tube plate cracking.
2. The ascension pipes arranged at the bottom of drum,this make the sludge not easy to deposit,prevent the drum bottom swelling.
3. It adopts efficient heat transfer threaded pipe,strengthened heat transfer,then heating-up and pressure boost -up quickly,thus increasing the thermal efficiency.
4. Compact structure, saving the boiler foundation cost.
5. Stable running,easy to adjust,strong steam output.
6. The smoke tube is not easy to be ash deposition,due to the smoke can be disturbance and clean itself.
7. Both wing wall and outlet widow inside of the furnace have the function of dust suppression, thus ensuring the soot discharge scratch the index stipulated by the
    State Environmental Protection.

Parameter

Model	Rated Steam Capacity (t/h)	Rated Steam Pressure (MPa)	Rated Steam Temperature (℃)	Rated Feed-water Temperature  (℃)	Overall Dimension of Boiler Assembled L*W*H（mm）
DZL1-0.7/1.0/1.25-AII	1	0.7/1.0/1.25	170/184/194	20	5100×2200×3000
DZL2-0.7/1.0/1.25- AII	2	0.7/1.0/1.25	170/184/194	20	5500×2300×3300
DZL4-1.25/1.6- AII	4	1.25/1.6	194/204	20	6600×2600×3600
DZL6-1.25/1.6- AII	6	1.25/1.6	194/204	20	7500×2900×3800
DZL8-1.25/1.6- AII	8	1.25/1.6	194/204	20	8100×3100×3800
DZL10-1.25/1.6- AII	10	1.25/1.6	194/204	70	7700×3200×3600	8600×3000×2600
DZL15-1.6/2.5- AII	15	1.6/2.5	204/226	70	10000×3240×3540	12000×3200×30800
DZL20-1.25/1.6- AII	20	1.6/2.5	204/226	70	11000×3240×3540	14000×3200×30800
Note: Parameter is for reference only, if any changes should follow the factory technical data.

Transaction Process
Customer Inquiry -- Offer Professional Consulting Service -- Place Order -- Customize Boiler Based on Customers’ needs --Production-manufacturing -- Payment -- Impeccable After Sale Service (installation and debugging, periodic maintenance, etc.)

Offered Technical Documentations
Installment and Operation Instruction
Quality Certificate
Inspection Certificate of Boiler quality
General Drawing of Boiler
Foundation Drawing
Boiler Body Drawing
Boiler Room Design Drawing
Drawing of Valves, Instruments and Accessories

Company Strength
Sitong boiler is a national approved and designated enterprise, with design and manufacture license permits of Class A boiler and D1, D2 pressure vessel. The company has passed ISO 9001 international quality system certification, and gained the international certificates of CE, SGS, and BV, etc. The boiler products are exported to more than 60 countries. The factory covers an area of 120 thousands㎡, equipped with plenty of international advanced manufacture equipment, such as CNC cutting machine, automatic submerged arc welding machine, X-ray detection machine, etc.

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