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6 tons/hour wood sawdust, rice husk and reed residue biomass pellet production line project, the project will build 3 production lines that process wood sawdust, rice husks, and reed residues into shaped biomass pellets, with a production scale of 30,000 tons per year. This project is to utilize waste resources and process waste resources (wood sawdust, rice husks, reed residues, etc.) into shaped biomass pellets. The shaped biomass pellets are easy to store, transport, easy to use, without any harmful additives, and have high combustion efficiency. And clean and environmentally friendly.
The main raw material of this project is rice husk, which is more than 70% combustible. The heat output of rice husk is 12560-15070kJ/kg, which is about half of standard coal. It is a convenient and cheap energy source. The rice mills are processing rice husks while obtaining energy. There are more than 200 rice mills, large and small, around the project. The main by-product of the rice mills is rice husk, which provides raw materials for the project.
30,000 Tons/year Wood Sawdust, Rice Husk and Reed Residue Biomass Pellet Production Line Project
The project is located in Muziyuan Group, Lijialong Village, Longguangqiao Town, Heshan District, Yiyang City. The project will construct 3 production lines that process wood sawdust, rice husks, and reed residue into shaped biomass pellets, with a production scale of 30,000 tons per year. This project consists of main engineering, environmental protection engineering, public engineering, and supporting engineering. The project composition is shown in the table below.
Table 1-1 List of project composition
| structural work | Production workshop | A layer of building, building area of approximately 1000m 2 (20m × 50m), a total of three lines, the scale of production of 30,000 tons / year. |
| Auxiliaryengineering | Office living area | The two-story building covers an area of about 100m 2 and the building area is about 200m 2. The first floor is a dining hall and a lounge, and the second floor is an office. |
| Storage and Transportation Engineering | warehouse | On the first floor, the building area of the raw material warehouse is about 1000m 2 , the raw material warehouse is used to stack collected raw materials, the building area of the finished product warehouse is about 500m 2 , and the finished product warehouse is used to stack finished products. |
| Public works | Water supply | Part of the water in the plant is provided by the municipal pipe network, and the other is provided by well water. |
| powered by | The power for the plant is supplied uniformly by the local power supply network. | |
| Environmental Engineering | Noise control | Shock absorption and sound insulation measures, etc. |
| Waste gas treatment | The workshop is a confined space; the crushing process, the granulating process and the cooling process are connected to the cyclone dust collector, and the tail gas of the cyclone dust collector is connected to the bag dust collector, and the dust settled in the workshop is cleaned and treated by a vacuum cleaner. | |
| Wastewater treatment | The canteen wastewater is treated in the grease trap and discharged to the septic tank together with domestic sewage, and used as agricultural fertilizer after being treated in the septic tank and not discharged outside. | |
| Solid waste disposal | The collected dust is reused in the production process; domestic garbage is cleaned and transported regularly by the sanitation department. | |
| Relying on engineering | Yiyang Municipal Solid Waste Incineration Power Plant | Yiyang Municipal Solid Waste Incineration Power Plant is located in Qingshan Village, Xielingang Town, Yiyang City, Hunan Province, with a total area of 60,000 m 2 and 90.0 acres. The total investment is 500.46 million yuan, and the service scope covers the main urban area of Yiyang City and some surrounding towns and towns and the eastern new district. The mechanical grate furnace incineration process is adopted, and two 400t/d waste treatment production lines are selected. |
According to the information provided by the builder, the annual consumption of raw materials for the project is approximately 33,000 tons. The raw and auxiliary materials of the project are detailed in the table below.
Table 1-2 List of main raw and auxiliary materials (raw material moisture content≦12%)
| Serial number | name | consumption | Remarks |
| 1 | Sawdust | About 10,000 tons/a | Market outsourcing, furniture factory |
| 2 | rice husk | About 20,000 tons/a | Outsourcing from the market, surrounding rice factories |
| 3 | Reed residue | About 3 million tons/a | Market outsourcing |
| 4 | Electricity | 125,000 kW·h/a | / |
| 5 | water | 240t/a | / |
Formed biomass pellet products: The raw material is mainly rice husk, with a diameter of about 8mm, a length of 2~3cm, ash content ≦8.0%, density ≧1.1t/m3, and low calorific value 3200kg/kcal. The moisture content of the finished product is less than 2%.
According to the information provided by the builder, the equipment equipped for the project is shown in the table below.
Table 1-3 List of main equipment
| Serial number | Device name | Quantity | unit |
| 1 | hammer mill | 1 | station |
| 2 | pellet machine | 3 | station |
| 3 | Cooler | 1 | station |
| 4 | Hoist | 1 | station |
| 5 | Automatic sewing machine | 1 | station |
| 6 | Cyclone | 3 | station |
| 7 | Bag filter | 1 | group |
| 8 | vacuum cleaner | 1 | station |
| 9 | Belt conveyors | 4 | station |
| 10 | Forklift | 2 | station |
| 11 | Forklift | 1 | station |
| 12 | transformer | 1 | A |
| 13 | Weighbridge | 1 | A |
Brief description: The process of this wood rice husk pellet production line project has strict requirements on the moisture content of raw materials. According to the construction party, the moisture content of the raw materials purchased in this project is less than 12%, and the moisture content of the finished product is not higher than 2%.
① Crush
The raw materials pass through the conveyor belt of the belt conveyor and enter the feed port of the crusher for crushing. Crushing is to turn large-diameter solid raw materials into smaller particles. Since the raw materials purchased have large diameters, they need to be crushed to avoid affecting the normal operation of the subsequent pelletizing process.
②Granulation
The crushed raw materials are fed from the feed port. Under the conditions of high temperature and high pressure, moisture is discharged to the atmosphere through the roof exhaust fan in the form of water vapor. The raw materials are compressed into molded biomass pellets by rice husk pellet machine and transported to the next process by a belt conveyor. Electric heating is used in the granulation process.
③Packing
The formed biomass pellets are transported to the elevator by the conveyor belt, the position is lifted, and then cooled by the induced air of the cooler, and packed into bags.
The entire production process of the project is completed on a closed assembly line, only raw material conveying, pelletizing feed conveying, and finished product conveying are open. The closed operation process is equipped with a bag filter for dust control, and the open operation process is equipped with a sweeping and vacuum cleaner for dust control.
Wood Sawdust, Rice Husk and Reed Residue Biomass Pellet Production Line Project
The labor force is 10 people, the annual working days are 300 days, Chinese food is included, accommodation is not included, and no production is performed every day from 22:00 to 6:00.
This sawdust pellet production line project is for renting a new factory building that has been built. Only equipment installation and debugging are required. The construction period is relatively short, about 7 days.
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