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SHL Series Coal Fired Bulk Hot Water Boiler

Rated Capacity : 10 ~ 75 t/h
Pressure : 1.25 ~ 9.8 MPa
Certificate : ISO9001, CE, BV, SGS, ASME
Fuel : II class bituminous coal, anthracite
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Product Description
Introduction
The new SHL series bulk boiler is a chain grate boiler, and jointly designed by Zhongding Boiler and the Xi'an Jiaotong University. The boiler inherits the domestic current mature technique of SHL chain grate boiler, gains technological breakthrough on the following five areas: furnace with water-cooling chamber, back-arch structure design, low thermal inertia, sealed membrane water wall structure, and contact side seal of the grate.
 
This series boiler combustion system is stable, strong coal adaptability, it has the function of dust
Removal by itself, the emission of black smoke and the original exhaust dust concentrations are meet the requirement of environmental protection.
 
The boiler is consists of upper drum, lower drum, water wall, convection tubes, economizer, air preheater and other components. convection bank is set between the upper and lower drums, boiler economizer and air preheater are arranged at the tail of the boiler. The front of boiler is composed by water wall furnace, and combustion equipment using scale chain grate.

Application
This series boiler is widely used in school, restaurant, swimming pool, textile mill, garment factory, printing and dyeing mill, food&beverage factory, bean/meat product factory, canning factory, winery, package plant, construction material factory, etc.
Advantage
1. The design of arch utilizes Xi’an Jiaotong University’s research achievement, which wins “Second Prize of National Scientific and Technological Progress”. The collection of arch structure and fore-and-aft arch outlet, forms a obvious inverted “ɑ” flue gas flue process, various kinds of coals are adaptable.
2. The structure of fore-and-aft arch is water-cooling “wet arch”. The arch tubes not only can improve the strength of arch, also keep the constant temperature in furnace, and protect the furnace arch.
3. The structure of double side air-intake and independent wind chamber guarantees the combustion efficiency, by adjusting the air capacity and pressure in air chamber flexibility.
4. Push-pull type damper ash removal device is employed, the damper uses the seal structure of heat resistant cast iron, effectively prevents deformation of secondary combustion and grate air leakage.
5. Using the unique structure of the secondary air, effectively improve the aerodynamic field in furnace, it is benefit for fuel ignition, extend the fuel residence time in the furnace, and improve the fuel adaptability and utilization.

Parameter
   
 Model
SHL7-1.0/115/70-AII
 
SHL14-1.0/95/70-AII
SHL14-1.25/130/70-AII
SHL21-1.0/115/70-AII
 
SHL29-1.25/130/70-AII
 
Rated thermal capacity (MW) 7 14 21 29
Rated pressure (MPa) 1.0 1.0/1.25 1.0 1.25
Output water temperature (℃) 115 95 115 130
Return water temperature (℃) 70 70 70 70
Thermal efficiency (%) 81 81.5 82 82
Heating area (㎡) Body Radiation 57.5 Radiation 97.5 Radiation 80.7 Radiation 131.7
Convection 237.3 Convection 146 Convection 315 Convection 388.5
Economizer 94.4 410 339 311.6
Designed fuel AII   (the low heating value is 21000KJ/kg)
Effective area of grate (㎡) 12.2 23.2 31 35.12
Weight of biggest part for transportation (t) 3.2 7.3 10.7 9.5
Overall dimension of boiler assembled (L×W×H) (m) 11.9×7.0×9.8 14.3×8.8×12.5 12×6×7.5 15.35×8.88×12.5
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 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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