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DZL Series Biomass Chain Grate Steam Boiler

Rated Capacity : 1~10 t/h
Pressure : 0.5~2.5 Mpa
Certificate : ISO9001, CE, BV, SGS, ASME
Fuel : Biomass fuel (wood chips, bamboo chips, straw, rice hull, peanut shell, bagasse, mustard stalk, cotton stalk, cotton seeds, coconut shell, corncob, waste cloth, etc.)
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Product Description
Introduction
Zhongding DZL series biomass boiler is single drum vertical chain grate steam boiler with three-pass water and fire tube, the fuel is biomass pellet. Water cooled tubes are arranged at the both sides, the front and back walls. The front wall water cooled tubes form the front arch. The drum is cross connect with the right and left anti-coking header by water cooled tubes, thus forming the lower arch and the upper two convection cooled flue. Single-return threaded pipe is arranged in drum, cast iron economizer is arranged in the tail of the boiler.
 
Biomass pellet fuel from bucket fell onto the grate, and enter into the furnace for combustion, flue gas enter into the tail of boiler through the upper of back arch (first return), next, enter into the front of the boiler through convection flue (second return), and then enter into the back smoke chamber through the threaded pipe bank (third return), finally enter into the economizer and dust remover, and discharged into the atmosphere by induced draft fan through chimney.
 
Based on the boiler design, it is better to use the biomass fuel with less biomass particles, the size with less than 3mm should not exceed 30%, the largest particles should not exceed 30mm.

Application
Application fields of steam boiler: Medicine, chemical, light industry, textile, building material, cultivation, food and beverage, plastic foam, printing washing, rubber processing, paper making, wood processing, hotel and garment manufacturing and tanning , etc.
 
Application fields of hot water boiler: Widely used in hospital, school, hotel, neighborhoods and bath center, etc. Supply heating and hot water for user.

Advantage
1. Adoption of massive chain grate to achieve mechanical combustion, equipped With induced draft fan for mechanical ventilation, and equipped with slag extractor for mechanical extraction sediment.
2. Complete control monitoring instrumentation is complete, to ensure safe and reliable operation.
3. Compact structure, small size, convenient for Install, short installation period, low infrastructure investment.
4. Heat insulating material is used in the contact segment of drum bottom, improve the safety of steam-water system.
5. The furnace is made of light fire brick and refractory concrete, the outside is made of vermiculite concrete for heat preservation, and equipped with new type guard board, appearance is neat and beautiful.
6. Adopts the push-pull damper dust cleaning device, effectively prevent air leakage.
7. The secondary air design offer the supplement of air, improve combustion efficiency and fuel utilization rate.

Parameter
Model Rated evaporation
capacity (t/h)
Rated Pressure
(MPa)
Rated steam 
Temperature (℃)
Feed water
temperature(℃)
Effective area of grate (㎡) Thermal efficiency(%) Fuel
consumption (kg/h)
DZL1-0.7/1.0/1.25-T 1 0.7/1.0/1.25 170/184/194 20 2.22 82 ~200
DZL2-0.7/1.0/1.25-T 2 0.7/1.0/1.25 170/184/194 20 4.1 ~400
DZL4-1.25/1.6-T 4 1.25/1.6 194/204 20 5.85 ~800
DZL6-1.25/1.6-T 6 1.25/1.6 194/204 20 7.95 ~1200
DZL8-1.25/1.6-T 8 1.25/1.6 194/204 20 9.75 ~1600
DZL10-1.25/1.6-T 10 1.25/1.6 194/204 20 10.77 ~2010
Note: Parameters is for reference only, if any change should follow actual drawings


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 Documents
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
Zhongding Boiler is the industrial boiler professor of China, it is referred as technical innovated enterprise. The manufacturer base is located in Zhengzhou Airport Economy Zone, and covers an area of 130 thousands m2. The company owns about 800 employees, including 110 technical engineers, and about 700 sets advanced manufacturing equipment. Zhongding Boiler concentrates on the invention of high-tech and energy saving boilers, has owned more than 20 sorts national patent technologies. 

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