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method of using rice husk in boilers

Product Thermal Capacity: 1 - 20 t/h

Working Pressure: 0.7 - 2 Mpa

Available Fuel: Nature gas, coke oven gas, biogas, methanol, liquid propane gas, diesel, heavy oil, light oil, crude oil, etc.

Available Industries: Heat supplying, chemical, food, textile, printing and dyeing, cigarettes and tobacco, fodder, pharmacy, building materials, brewery, rubber, hospital etc.

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Introduction of WNS gas / oil fired steam boiler:

WNS series horizontal internal combustion boiler is a boiler shell type 3 passes wetback oil/gas fired boiler. After fuel is being atomized by burner, flame is full of the wave furnace and transfer heat via furnace wall, this is 1st pass; the high temperature smoke is collected in reversal chamber and then enters 2nd pass which is grooved tubes bundle area; after heat convection, air temperature gradually falls and goes to front smoke box and turn to 3rd pass, which is smooth tubes bundle area, and then enters chimney passing back smoke box and exhausted to the atmosphere.

Technical advantages:

1. Digitized manufacture
The key part such as material cutting, rolling, drilling are proceeded by advanced CNC machining process to reduce the assemble stress and extend boiler working lifetime.
The front and back smoke chamber plates are cut by CNC plasma cutting machine and looks tidy and beautiful.

2.Easy operation and maintenance
Fully automatically operating, with automatically adjustment and protection of burning, water level, temperature and steam pressure.

3. Longer working life
Smoke tube and tube sheet connection is expanded first to eliminate the gap between them, then adopt automatic argon arc welding to relief the stress and expand boilers working life.
Longitudinal and girth joint adopt advanced automatic submerged-arc welding for good welding quality. All longitudinal and girth joint will have 100% radiographic inspection.
Fin tube us ND steel or stainless-steel material which avoid low temperature corrosion.
Inspection procedure point is set up to guarantee the sequence of expanding and welding, avoid cracking of the tube sheet holes.

4. Less fuel consumption
High quality aluminum silicate fiber is used with fire clay insulation, to control the boiler body temperature below 45℃ to control heat lost.
Sufficient steam storage room and heating area makes boiler to generate high quality steam and high thermal power.
Condenser is added to reuse the waste heat of the exhausted smoke to increase feeding water’s temperature and reduce emission temperature, which can increase the thermal efficiency above 98% and save operating cost.

RICE HUSK ASH - CVBT, Center for Vocational Buildi

the kilns have been fired using rice husk, the ash still remains. As the production rate of rice husk ash is about 20% of the dried rice husk, the amount of RHA generated yearly is about 20 million tons worldwide (Hwang, 185). Burning The rice husk ash is a highly siliceous material that can be used as an admixture in concrete if the rice


The estimated annual potential of rice husk development was calculated using statistical data from 2001 to 2012. The results indicate that the development potential of rice husk, potential for electrical energy and economic potential increased by approximately 36.8% over 12 years; an average of about 3.1% per year. In 2011, the 33 provinces had

(PDF) Study on Properties of Rice Husk Ash and Its Use

This paper investigates the properties of rice husk ash (RHA) produced by using a ferro-cement furnace. The effect of grinding on the particle size and the surface area was first investigated

Using rice husk for energy production - IRRI Ri

Rice husk contains about 30 – 50% of organic carbon and have high heat value of 13 – 16 MJ per kg. It can be used to generate fuel, heat, or electricity through thermal, chemical, or bioprocesses. The energy conversion processes of rice husk are presented in a diagram in Figure 1.

26. Understanding rice husk as a biomass fuel EN 2013

Rice husk ash An additional bene˜t of using rice husk as a biomass fuel is from the ash after the rice husk has been combusted. The Rice Husk Ash (abbreviated to RHA), is particularly high in silica (Si). Silica is an important raw material for many purposes, and RHA is therefore becoming increasingly valuable. Some of the uses of

Effects of Method of Incineration on Rice Husk Ash Blend

Effects of Method of Incineration on Rice Husk Ash Blended Concrete A.E. Abalaka Department of Building, Federal University of Technology, FUT, Minna Abstract Rice Husk Ash (RHA) produced in a charcoal fired incinerator was milled and characterized using Back Scatter Electron (BSE) imaging and X-ray Diffraction (XRD) methods.

Feasibility Analysis of Rice Husk Pelletizi

Thus, in the process of rice husk pelletizing, the chipper and crusher used to cut feedstock into chips and grind it into smaller powder are no more needed. 1.5. Heat value: Although its heat value (about 3800Kcal/kg) is not as high as that of some wood wastes, such as pine sawdust and maple chips, rice husk is still a promising alternative for

Rice husk - IRRI Rice Knowledge Ba

File Size: 390KB Rice husk in its loose form (Fig. 2) is mostly used for energy production, such as combustion and gasification.Combustion is the process of burning carbon in the rice husk, which emits CO 2 and generates heat energy for further use. One of the most efficient uses of this by-product is its direct combustion without the need for a heat exchanger with a proper furnace to generate heat for drying

Combustion and Emission Characteristics of Rice husk in

Abstract--The experimental results on combustion of Rice husk in a lab scale fluidized bed combustor (FBC), using river sand as the bed material are presented in this paper. The Fluidized bed was operated at 15–25 kg/h of rice husk feed for various excess air factors (20-100%) and for the different fuel particle sizes. The effect of fuel feed

Production of biochar from rice husk: Particula

The moisture content of the rice husk was determined by the oven-drying method following ASTM D4442. Ultimate analyses of the rice husk and biochar were carried out using a CHNS determinator (PerkinElmer, 2400 Series II CHNS/O). The ultimate analysis for C, H, N, S, and O was carried out following ASTM D5373. The oxygen content was calculated

Rice Husk Ash in Concrete -Properties, Advantages and Us

This method helps in producing the rice husk ashes with amorphous silica and cellular structure products in an easier way. The rice husk ash produced by this method is highly pozzolanic. Variation of Properties of Concrete with Rice Husk. The incorporation of rice husk ash in concrete convert it into an eco-friendly supplementary cementitious

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