Vertical Type Rice Husk Fired Steam Boiler
From Biomass Fired Boiler
The vertical type rice husk fired steam boiler is a small capacity boiler with horizontal water tubes, it fits for the small industries, and has the advantages of compact structure, small footprint, and save infrastructure cost. Flue gas is brushing the inner wall of furnace and water tubes, for radiation heat transfer and convection heat transfer, the grate and lower part of furnace is radiation heating area, the horizontal water tubes and upper part of furnace is convection heating area. Except rice husk, the fuel could also be wood chips, rice hull, bagasse, straw, peanut shell, mustard stalk, cotton stalk, coconut shell, and waste cloth, etc. biomass particle diameter should be 6-10 mm, length should be 25-50mm, and water content should be less than 15%. The source of solid biomass fired boiler fuel is widespread, has the advantages of low cost, environmental friendly (sulfur content2emission), energy saving, and high combustion efficiency (>90%).
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Products Details
- Rated Capacity : 0.1t/h-1t/h
- Pressure : 0.4/0.7Mpa
- Application : Rice mill, farm, food & beverage industry, textile Industry, other industries.
- Certificate : ISO9001, CE, BV, SGS, ASME
- Fuel : rice husk, wood chips, bagasse, straw, and other biomass fuels.
Compare with coal fired boiler, the biomass boiler has the different characteristics:
- The furnace combustion space is larger, to fit for the high-volatility biomass fuel.
- Economizer and air preheater could be arranged at the tail of biler to improve the thermal efficiency.
- Based on different biomass solid fuel, Zhongding Boiler could design the specific boiler individually.
Combustion Process
The vertical type coal fired steam boiler adopts the general combustion techniques, the combustion equipment is moving grate, coal or biomass fuel was fed by workers manually. after buring in the moving grate, the exhaust gas passes through the horizontal water tubes, and the small carbon black and dust fall down onto the grate for reburning, and then the exhaust gas is released to the atmosphere through the chimney.
Application
The small vertical type coal fired boiler is widely used for industrial production, such as textile industry, food industry, sugar mill, paper industry, chemical industry, garment industry, etc. Otherwise, it could used in hospital, school, hotel, etc.
Advanced Technology and Structure
Horizontal Pipes
Horizontal pipes increase the radiation heating area, the flue gas pass through the forced convection tube bundle longitudinally, fully absorb the flue gas heat, decrease exhaust gas temperature, high thermal efficiency.
Multi-pass Structure
Multi-pass structure, high heat transfer efficiency, moreover, the dust in flue gas can be removed naturally without ID fan, save energy.
Natural Ventilation
The steam boiler is natural ventilation, do not need ID fan and draft fan, operate quiet. Compact structure, easy to install, small footprint, small investment. Moreover, the temperature and pressure rise-up quickly, improve thermal efficiency.
Advantages
- Zhongding Boiler owns a professional design engineer team, before manufacturing, every boiler design drawing will be approved by boiler and pressure vessel experts of CSBTS ( State Bureau of Quality Technical Supervision ), and then the boiler could be produced only if qualified.
- To ensure the raw materials quality, all the steel plates are special-used for boiler with the Inspection Certificates. The raw material materials are inspected when entering factory, and only the qualified material could be put in storage and used for production.
- To ensure the welding quality, there a professional welding team, including more than 30 senior welders. The welding materials are stored under constant temperature and humidity, to ensure the welding material quality.
- Nondestructive testing will be done to ensure the welding quality, by using x-ray detection, ultrasonic flaw detection, magnetic test, or penetration test, etc.
- Hydrostatic test will be done to ensure the leakproofness and strength of boiler pressure parts, generally, the testing pressure is 12.5 times of rated working pressure.
- All the raw materials and boilers are supervised and inspected by the experts of Inspection Institution for Boiler and Pressure Vessel. There are international quality certificates of ISO 9001 and CE, we can also offer the inspection report of SGS, BV, etc., Quality Certificates, Energy audit report, and Energy Efficiency Test Report, etc.
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