A, the significance of developing Biomass pellet fuel

The energy problem is one of the decisive factors that affect social and economic development, solve the energy problem is solved the question of the motive forces of the economic development. Conventional energy supply tension in our country has seriously affected the rapid development of social economy, and the mass concentration of fossil energy use, release a large amount of carbon dioxide, sulphur dioxide, nitrogen oxide and other substances, harm to human survival environment. For this country has issued a "renewable energy law to strengthen the development of renewable energy technology research. Biomass can be used as the fourth power resources and occupies an important position in the renewable energy. Can develop Biomass can supplement the shortage of conventional energy, also has the significant environmental benefits. Compared with other Biomass energy technology, Biomass pellet fuel technologies are easier to implement mass production and use, but how easy it is to use a Biomass particles and gas, fuel oil and other energy sources. So, the use of dense Biomass pellet fuel molding equipment production project in line with the national industrial policy, has good economic and social benefits.

Second, feasibility of resource conditions:

Our country is an agricultural country, there are many kinds of crops, and the number is larger. Rice, corn and wheat are the three main kinds of crops, the production of waste - the straw is one of the main Biomass can. Total annual output of 604 million tons of crops straw, about 15%, or 091 million tons of straw returning is used to direct ZaoFei; 25%, or 151 million tons of straw as Feed; About 9%, or 054 million tons of straw was used as industrial raw material. In addition, about 51%, or 308 million tons of crops straw can be used as energy use, including 190 million tons of crops straw were farmers in direct combustion water for cooking and heating furnace, the rest of about 120 million tons of abandoned in the fields or burned directly in the field, not only waste the resources, have seriously polluted the environment. In addition, the national forestry industrial wood residue number is about 40 million cubic meters; The number of paper industry in the production of wood residue is about 10000 cubic meters; Bagasse production capacity of about 40 million tons, most of the leftovers in the industry become a waste, become the environmental burden.

Therefore, conditional enterprises or individuals can take advantage of abundant raw materials, low price advantage, is engaged in the production and development of Biomass pellet fuel.

Three, Biomass pellet fuel product characteristics and USES:

Biomass pellet fuel is used under the conditions of the roller and ring die of Wood chip, straw and other raw materials caused by extruding. The density of raw material, generally about 130 kilograms/stere, forming of the grain density is more than 1100 kilograms/stere, transportation, storage is extremely convenient, at the same time, the fuel performance greatly improved.

1. The pellet fuel use:

Low heating and civil life can use; High combustion efficiency, easy to store.

Low Biomass industrial boiler; As the main fuel of industrial boilers, coal-fired, solve the environmental pollution.

Low power: can be used as the fuel of thermal power generation.

2. The performance of the Biomass pellet fuel
Calorific value > 4000 kcal/kg
Density > 1.1 t/m3
Appearance is light yellow cylindrical 6 mm
Ash content < = 1.1%
Moisture < = 8%
The burning rate > = 95%
Thermal efficiency is > = 81%
Smoke blackening (salinger mann) < 1
Dirt concentration < = 80 mg/m3

Four, the market situation

Wood particles of small package in the us market price is $400 / ton, delivery price is $400 / ton in Sweden; Bulk of the wood particles in fob Amsterdam is $300 / ton. Pellet fuel market in China is still not perfect, dalian wood particles retail price of 550 yuan/ton. National development and reform commission (NDRC) Biomass forming fuel development plan is put forward, in the 2010 years ago, combined to solve the basic rural energy needs and changing the mode of rural energy, to develop Biomass pellet fuel pellet fuel consumption in application demonstration site construction, 5 million tons, instead of 3 million tons of coal. By 2020, making Biomass pellet fuel used widely in a high quality fuel. Instead of pellet fuel consumption of 50 million tons, 50 million tons of coal.

Five, forming principle and main equipment

Biomass raw materials containing cellulose, hemicellulose and wood main element. Because structure is loose, density is small, when the external force, the raw material will rearrange the position experience, mechanical deformation, plastic deformation stage, the elastic or viscoelastic cellulose molecules between winding and twisted, volume was reduced, the density increases.

1. The conveyor

In this project at the entrance of the pellet machine, particles at the exit of the machine must have before packing material Conveying equipment, we according to the characteristics of the material and process characteristics, choose Hank dragon conveyor. The conveyor has a small cross-sectional area, covers an area of small, transport system layout is compact, hoisting height is big, good sealing, etc.

2. The counterflow cooler

Squeeze out the temperature of the particles in 55 ℃ to 65 ℃, so in front of the packaging must be dry and cool. According to the characteristics of the larger particles, using the counterflow cooler, it mainly cold wind through the surface of material, in order to achieve the purpose of drying and cooling. Material in the process of cooling, in static state, the need to pay attention to the choice of air as opposed to a material flow direction, in order to achieve the effect of the cooling uniformity.

3. Biofuels pellet machine

The Biomass fuel pellet machine is the core of equipment system, its technical performance fit and unfit quality directly affects the whole system. Through to the molding pressure and the relationship between the density of pellet fuel and normal temperature conditions, the researches on the mechanism of the density forming types according to different raw materials we choose different ring die parameters, thus can obtain the high density

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------ LIYANG LONGJIE MACHINERY CO., LTD.