The technology of corn straw pelletizing

Due to the fact that coal and other non-renewable energy sources would cause heavy air pollution, and the shortage of energy is getting more serious, corn straw pellet mill appears to solve these problems. Corn straw which has a wealth of nitrogen, phosphorus, potassium, calcium and other organic matter is very common and easily accessible. It is a renewable biomass energy and has been widely used throughout the world.

In recent years, the agricultural production method and farmer’s way of life are greatly changed along with the rapid development of economy in urban area. The traditionary value and position of crop straw are decreasing greatly, so the issues of straw pollution are more prominent. How to utilize the crop straw comprehensively, finding the new method of making waste into precious, promoting the continuous development of agriculture, has become the hot topic and difficult problem which demand prompt solution and highly concerned by the whole society. Now biomass pellet fuel is widely applied in foreign countries. In our country, the technology of producing biomass pellet fuel and the products are in promotion and application. In Hu Nan province, the patent declared by Cai Wenshu has opened a kind of new biomass pellet fuel, it contains crop straw, crop husk, plant base, rank grass, bamboo leaves, sawdust and animal wastes mixed with sweet potato or potato, which has below 14%of water content and particle size of lower than 8mm. Then they are compressed into pellet or stick fuel. The weight portion of plant fuel with sweet potato or potato is: biomass fuel: sweet potato or potato =100:2-5

Read:How to start a pellet plant

According to the above, combined with the features of large planting area of corn and high yield of straw in the north, a kind of new biomass pellet fuel has been produced from corn stalks and waste processing coal powder, which not only saves non-renewable energy but also protect the environment. The thermal value of biomass pellet fuel is up to 4,000 to 5,000 calories, it can replace of the coal to meet the demand of production and living. At the same time, the ash content and other combustion by-products after burning can be used to make fertilizer and construction materials, so the biomass fuel has better economic, social and environmental benefits.

The program is to crush the corn stalk into the size less than 4 mm and mixed with coal with no less than 5,000 kcal of heat, then pass through the natural drying, mixing, pelletizing by pellet mill, natural cooling, screening, packaging and other processes, then the biomass pellet fuel are made.
Weight ratio of ingredients of biomass pellet fuel is: Straw: coal = 50: 50

Processing methods are: First, the corn stalks enter into natural drying process, which make the moisture less than 15%. Then complete sets of processing equipment convey the mixed crushed corn stalk and coal powder in portion and make pellet by pellet mill. After that, the finished products can be produced through the natural cooling, screening and package.

Biomass pellet fuel is energy saving and high thermal efficiency. It not only can replace non-renewable energy completely, but also reduce emission of carbon dioxide, sulfur dioxide and other harmful gases. Meanwhile biomass pellet fuel can resolve the problems fundamentally which caused by the large pile of straw in rural areas like occupying large area, affecting the landscape, causing fire and other insecurity factors.

The main materials like waste wood chips and crop straw which can be used in the pellet mill are with large yield on earth. Recently, the demand for corn straw is increasing. With the shortage of global energy, the discarded corn stalks can be processed into straw pellets by the corn straw pellet mill and sent to chemical and power plant to replace coal as fuel. It can greatly reduce the cost and recognized by more and more customers. KMEC provides all kinds of pellet mill with low energy consumption, high efficiency and large output, welcome to consult and purchase.

China largest energy biomass pellet mill manufacturer
10 years experience focus on biomass energy equipment research
If you need pellet mill, please feel free to contact us. Our professional salesman can give you suggestions to choose the most suitable type.

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The requirement for pelletizing of sawdust pellet mill
For the sawdust pellet mill, the operational condition and operating technology greatly concerned with the quality of finished products. As the main machine of biomass complete equipment, sawdust pellet mill would produce biomass solid pellet.

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