10-12T/H Bamboo Wood Pellet Production Line In Bengal

Project construction content

Main products and product standards

Main products and production capacity

Product index standards

Equipment for Bengal wood pellet line project

The project purchase equipment and facilities such as crushers, biomass pellet machines and biomass boilers. The plant layout of the project is based on the general principles of process requirements and general layout, combined with the coordination of environmental protection facilities and the convenience of pipelines.

The main equipment used in this 10-12t/h bamboo wood pellet production line in Bengal project is as follows:

Types and quantities of main raw and auxiliary materials and fuels

The main raw materials used in this 10-12t/h bamboo wood pellet production line in Bengal project are various bamboo chips, wood waste and scraps. The consumption is shown in the following table:

Calculation table of biomass consumption for boiler combustion

This bamboo wood pellet production line in Bengal project uses a 3t/h boiler, and its consumption of biomass pellets is as follows:

Capacity matching analysis:

The biomass wood bamboo pellet machine used in this project can produce 4 tons per hour. The construction project is equipped with 4 biomass pelletizers, with an annual production time of 2400h, so the annual pelletizing capacity of the project is 38,400 tons, which can meet the production needs of the project.

The sawdust and shavings of this project do not need to be crushed, only the larger pieces of waste firewood need to be crushed, and the annual consumption of waste firewood is 10,000 tons. This project has 1 crusher with a crushing capacity of 5t/h and a crushing time of 2400h, which can complete the annual crushing of 10,000 tons of waste firewood.

Material balance

Bengal bamboo wood pellet production line process design

1. Incoming materials:
   The raw materials purchased from outside the project are transported to the factory area by transport vehicles, and the raw materials are transported to the raw material storage site by belt conveyors for stacking. When in use, they are transported to the feeding port by forklifts for feeding.
   During the transportation of raw materials, environmentally friendly cloth is covered on the vehicles to reduce dust generated during transportation. The raw materials are stacked in a closed factory building to reduce the dust generated outside the factory building by the raw material stacking.
2. Chipping/crushing:
   The raw materials in this biomass pellet plant project are mainly bamboo sawdust, shavings, sawdust, waste wood, etc. Large raw materials such as waste wood are transported to the wood chipper by forklifts to be crushed into fine materials, and then transported to the wood hammer mill crusher through a belt corridor for crushing.
   When processing waste wood, the feeding port for fine raw materials does not work. Small raw materials such as bamboo sawdust, shavings, sawdust, etc. are directly fed into the crusher after feeding and crushed into fine materials with a size of less than 9 mm.
3. Screening:
   The crushed fine raw materials are transported to the screening machine through the belt corridor for screening, and the qualified crushed materials and the metal debris such as iron nails and iron wires in the original raw materials are screened out.
   The unqualified large-particle crushed materials are returned to the crushing process for re-crushing. The generated metal debris such as iron nails and iron wires are collected and sold outside.
4. Drying:
   The bamboo wood pellet production line in Bengal project uses a biomass thermal oil furnace for heating. The thermal oil contacts the air through the heat exchanger to transfer heat, so that the air reaches the set temperature, thereby drying the powder.
   The thermal oil is circulated in the thermal oil system and replaced once a year. After the screening is completed, the material is transported to the boiler drum through the belt corridor. The drum ensures that the material is heated evenly. This process dries the material to a moisture content of 8%. The heating temperature of the project's biomass thermal oil furnace is 110℃, and the ignition point of wood is 250-260℃.
   A small amount of smoke will be generated in a high-temperature closed environment. However, due to the low furnace temperature and short heating time, the raw materials are not carbonized and no wood tar or wood vinegar is produced.
5. Cooling:
   The temperature of the biomass raw materials after drying reaches 50~70℃ and needs to be cooled to room temperature. The dried biomass powder is transported to the drum dry material bin for cooling via a conveyor belt to ensure that the biomass particles remain dry and intact during the cooling process to achieve the molding effect. The dry material bin equipment is sealed and the cooling dust is not discharged.
6. Granulation:
   The cooled biomass powder is transported to the pelletizing machine via a belt corridor for compression molding. The bamboo wood pellet mill machine is fed by its own feeding equipment. The biomass raw materials are sent to the feeding chamber of the pelletizing machine. Under the joint action of the distributor and the scraper, they are evenly spread on the ring die. Then the materials are continuously squeezed into the small holes of the die.
   The materials undergo molding and shape retention processes in the die holes. As the pressure inside the wood pelletizer increases, the pellets themselves deform and flow plastically, and generate a lot of heat under the action of friction, which causes the lignin contained in the raw materials to soften and increase the adhesive force. The softened lignin and the inherent cellulose in the biomass work together to gradually shape the biomass.
   After a certain period of time, it is extruded in a cylindrical shape. The rotating cutter cuts the material into a cylindrical shape and sends it out after discharging. This bamboo wood pellet production line in Bengal project does not heat the pelletizing process, does not add any adhesives, and does not undergo chemical reactions. It is completed only through physical extrusion.
7. Packaging:
   The finished qualified products are sent to the pellet silo through the belt corridor for temporary storage, and then packaged by a baler. The finished bagged products are stored in the finished product warehouse.

Environmental Protection Engineering

Why build bamboo wood pellet production line in Bangladesh?

The reasons for building a bamboo wood pellet production line in Bangladesh mainly include the following:

• ‌Demand for environmentally friendly fuel‌:
  Waste wood and bamboo can become environmentally friendly fuel to replace coal after simple processing by pellet machines. The use of this fuel helps to reduce the use of coal, thereby reducing air pollution and greenhouse gas emissions, which has positive significance for environmental protection‌.
• ‌Rich resources‌:
  Bangladesh has rich bamboo forest resources, especially Sylhet, Chittagong, Kus Bazar, Mymensingh and other areas are covered by large tracts of bamboo forests, providing sufficient raw materials for the production of bamboo wood pellets‌.
• ‌Economic development‌:
  Bangladesh's construction and building materials industry has achieved unprecedented development in recent years, thanks to its large population, accelerated urbanization and the need for infrastructure construction. The construction of bamboo wood pellet production lines can meet market demand and provide entrepreneurs with a broad market space and unlimited business opportunities‌.
• ‌International aid and support‌:
  Bangladesh has received attention and support from the international community. For example, the United States Agency for International Development (USAID) signed a "Development Agreement" with Bangladesh, pledging $200 million in aid to support the country's "inclusive economic growth and institutional reforms"‌. This support helps promote sustainable development projects, including bamboo wood pellet production lines.

In summary, building a bamboo wood pellet production line in Bangladesh not only meets environmental protection needs, but also makes full use of the country's natural resources and meets domestic market demand. At the same time, it has received support and recognition from the international community, which is of great significance to promoting economic development and environmental protection.