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

The 10-12t/h bamboo wood pellet production line in Bengal project builds two new factories, a comprehensive building and a guardhouse, covering an area of 1,795m2, relying on the existing power supply and water supply and drainage projects.

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

OVERVIEW

As a renewable energy source, bamboo wood fuel pellets are in line with the trend of environmental protection and sustainable development. For a country like Bangladesh that is committed to economic development, the development of bamboo wood fuel pellet processing business can not only meet the domestic demand for clean energy, but also promote the development of green economy.

In addition, the support and encouragement of the Bangladeshi government for environmental protection and renewable energy provide policy support for such businesses, further enhancing the feasibility of their development.

The 10-12t/h bamboo wood pellet production line in Bengal project builds two new factories, a comprehensive building and a guardhouse, covering an area of 1,795m2, relying on the existing power supply and water supply and drainage projects.

  • Name:

    wood pellet factory

  • Country:

    Bengal

  • Date:

    2022.07.24

  • Capacity:

    10-12T/H

  • Pellet Size:

    6-10mm

  • The install period:

    70 Days

  • Control Mode:

    Semi-automatic

  • Guiding Price:

    890,000 USD

Project construction content

Project Category Category Project Content and Scale
Main Project 1# Factory Building One building with one floor, part of the second floor, used as a warehouse for raw materials and products
2# Factory Building One building with one floor, used as a production workshop, equipped with crushers, pulverizers, pelletizers, biomass boilers and supporting equipment.
Auxiliary Engineering Comprehensive Building One building with two floors, covering an area of ​​300m2, mainly for office areas and meeting rooms, etc.
Gate Guard One building with one floor, covering an area of ​​10m2
Power Distribution Room One building with one floor, covering an area of ​​20m2
Storage and transportation engineering Raw material area Relying on 2# factory building
Finished product area Relying on 1# factory building
Auxiliary material warehouse Relying on 2# factory building, covering an area of ​​10m2, used to store lubricating oil, heat transfer oil, hydraulic oil, etc. used in this project
 Public works Water supply Supplied by the local water supply network
Drainage The domestic sewage of the project is temporarily stored in a 10m2 septic tank, which is regularly dredged and used as fertilizer for the surrounding farmland without being discharged
Power supply Supplied by the local power supply network, relying on a distribution room, covering an area of ​​20m2, and a new 250KVA transformer

Main products and product standards

Main products and production capacity

Product Type Capacity Remarks
Biomass Pellets 30,000 tons Large cylindrical solid particles with a diameter between 6-9mm

Product index standards

Physical properties Particle size Length Density Moisture content Ash content Sulfur content Volatile content
6-9mm 10-50mm ≥600kg/m 8% ≤3% ≤0.05% ≤20%

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:

Serial number Name QTY
1 Chipper machine 1
2 Crusher machine 2
3 Screening machine 1
4 Wood pellet machine 4
5 Biomass thermal oil furnace 1
6 Automatic baler 1

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:

Serial number Name Annual maximum usage (t/a) Packing method Maximum temporary storage quantity and storage period Storage location Remarks
1 Bamboo chips 5000 Bulk, stacked 500t, 30 days Raw material area Moisture content about 30%, average particle size: 4mm
2 Wood shavings 7000 Bulk, Stacking 500t, 15 days Raw material area Moisture content is about 20%, length 6mm, thickness 1mm
3 Waste wood 10000 Bulk, stacking 1000t, 30 days Raw material area Moisture content is about 20%, block objects
4 Sawdust 13000 Bulk, stacking 130t, 30 days Raw material area Moisture content is about 20% , average particle size: 8mm
5 Biomass pellets 1350 Bagged / Finished product warehouse Self-produced, used for boiler Furnace fuel
6 Hydraulic oil 1 Barrel / Auxiliary material warehouse Used for equipment maintenance
7 Lubricating oil 0.25 Barrel / Auxiliary material warehouse Used for equipment maintenance
8 Heat transfer oil 2 Barrel / Auxiliary material warehouse Used for boiler heat transfer

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:

Name Maximum Usage Packaging Boiler Model Remarks
Feasibility Study of Boiler 1350t/a Bagged 3t/h The calorific value of biomass is about 4000 kcal, and the hourly combustion consumption of 3t/h of biomass = 600,000 kcal*tonnage/biomass pellet combustion value/boiler combustion efficiency. The biomass combustion efficiency is generally 80%.

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.

Serial number Equipment name Quantity Capacity Annual operation time/h Design capacity Compliance
1 Crusher 1 5t/h 2400 12000 Compliance
2 Pulverizer 2 8t/h 2400 38400 Meet
3 Granulator 4 4t/h 2400 38400 Conforming

Material balance

Input t/a Output t/a
Sawdust 5000 Moisture content 29% Biomass pellets 30000 Moisture content 8%
Wood shavings 7000 Moisture content 23% Water vapor 4860
Waste wood 10000 Moisture content 20% Dust 139.325
Sawdust 13000 Moisture content 20% Screened impurities (metal, stone) 0.675
Total 35000 / Total 35000

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

Waste gas Incoming dust, raw material stacking dust, feeding and transportation dust Enclosed workshop
Feeding waste gas is collected through the fixed gas collection hood above Feeding waste gas, crushing waste gas, and pulverizing waste gas are collected and treated by a set of "bag dust collector" and discharged through a 15-meter high exhaust pipe (DA001)
Pulverizing waste gas is collected in a closed manner
Crushing waste gas is collected in a closed manner
Screening waste gas is collected in a closed manner
Boiler combustion waste gas is collected in a closed manner The biomass thermal oil furnace uses a low-nitrogen burner, and the biomass boiler combustion waste gas is treated by a set of "cyclone dust removal + bag dust removal ” facilities and then discharged through a 30-meter-high exhaust chimney (DA002)
Drying waste gas Drying dust is collected through a closed air hood above the discharge port and then treated by a set of "bag dust collectors", and then combined with granulation waste gas and discharged through a 15-meter-high exhaust chimney (DA003)
Pelletizing waste gas is collected in a closed manner After closed collection, granulation waste gas is treated by a set of "bag dust collectors" and discharged through a 15-meter-high exhaust chimney (DA003)
Wastewater The domestic sewage of the biomass pelletproduction line project is temporarily stored in a 10m2 septic tank, regularly dredged, and used as fertilizer for surrounding farmland, and is not discharged externally
Noise Rationally arrange workshop equipment, give priority to low-noise equipment, distance attenuation, vibration damping pads, etc.
Solid waste General solid waste: dust ash is reused in production processes, and impurities (including metals, stones, etc.) are screened and collected by the customer company and sold to material recycling units
Hazardous waste: waste hydraulic oil, waste lubricating oil, waste heat transfer oil, and waste oil barrels are collected and classified by the customer company, and a hazardous waste temporary storage room is set up for safe temporary storage, with an area of ​​5m2. The ground anti-seepage of the hazardous waste temporary storage room adopts key anti-seepage

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:

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.

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