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Annual Production of 15,000 Tons of Straw Wood Biomass Pellets

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There are many raw materials that can be used in the biomass pellet production line established by Richi Machinery. For example, the project is a 6 tons per hour straw wood block sawdust pellet production line project. The raw materials are straw, wood blocks, and sawdust, forming a biomass pellet production project with an annual output of 15,000 tons. The following main raw and auxiliary materials are shown in Table 1, and the main equipment is shown in Table 2.

Annual Production of 15,000 Tons of Straw Wood Biomass Pellets

Annual Production of 15,000 Tons of Straw Wood Biomass Pellets

1. Consumption of raw and auxiliary materials for straw wood block sawdust pellet production line

Table 1 Consumption of main raw and auxiliary materials of this project

Serial number name Annual consumption (t/a)
1 Straw 6240
2 block 4320
3 Sawdust 4500

2. Main equipment of straw wood block sawdust pellet production line

Table 2 Main equipment of this project

Serial number Equipment name Quantity unit
1 Fragmentation machine 1 station
2 grinder 1 station
3 Granulator 4 station
4 Screening machine 1 station
5 delivery 2 station
6 Fan 3 station

3. Product plan

Table 3 List of main product plans of this project

Serial number product name specification Design ability ( t/a ) Annual operating hours
1 Molded biomass pellet fuel According to order 15000 2400h/a

Table 4 Product quality indicators of this project

project symbol unit index
Total moisture Mt % ≤15
Ash Ad % ≤10
Volatile Vd % ≥63
Total sulfur St, d % ≤0.20
Heat MJ/kg ≥14

4. Project content

This project leases existing workshops for production. The workshop covers an area of ​​5000 m2 and a building area of ​​2800 m2. See Table 5 for details.

Table 5 List of construction contents of this project

category Building name Designing ability Remarks
structural work Manufacturing Plant Annual production of 15,000 tons of particulate fuel Building area 2800m 2 , leased
Auxiliary engineering Office Daily administrative office Building area of ​​100m 2 , located in the production workshop
Public works powered by Annual electricity consumption 800,000 kWh Provided by the local power grid
Water supply Annual water consumption 180m 3 Provided by the local water pipe network
drain Mainly domestic sewage, the amount of wastewater generated is 144m 3 /a Rainwater and sewage diversion, rainwater from the factory area enters the rainwater pipe network of the park, and domestic sewage is regularly cleaned out after treatment in the septic tank and used as agricultural fertilizer
Storage and Transportation Engineering warehouse For storage of raw materials and finished products Building area of ​​500m 2 , located in the production workshop
Off-site transportation Entrust social vehicles for transportation /
In-plant transportation Forklift, forklift /
Environmental Engineering Waste gas treatment Crushing: cyclone + bag filter + 15m high exhaust tube
Granulation: cyclone + bag filter
Screening: cyclone dust collector
Wastewater treatment Septic tank Used as fertilizer, not discharged
Solid waste treatment General solid waste temporary storage /
Noise processing Choose low-noise equipment and reasonable layout; local noise reduction and sound insulation; sound insulation of workshops, etc. /

5. Work system and labor quota

Working system: This project adopts a one-shift system, an eight-hour system, with an annual work of 300 days and an annual work of 2,400 hours.

Labor quota: The project has 12 labor quotas, including 3 administrative and management personnel.

6. Environmental protection investment

The environmental protection investment of this project is 240,000 RMB, accounting for 3% of the total investment of 8 million RMB. See Table 6 for a list of environmental investment and facility budget estimates for this project.

Table 6 Environmental protection investment estimates

Pollutants Governance measures Treatment effect Investment
(ten thousand yuan)
dust Crushing: cyclone + bag filter + 15m high exhaust tube
Granulation: cyclone + bag filter
Screening: cyclone dust collector
Discharge 19 Designed, constructed and put into operation simultaneously with the main project
ammonia nitrogen, TP
Septic tank Used as fertilizer, not discharged 2
noise Vibration and sound insulation,
reasonable layout
Discharge 2
Employee household waste, dust, substandard products General solid waste yard and garbage bin Secure temporary storage 1
total twenty four  

7. Process flow

(1) Crushing: use a pulverizer to pulverize raw material straws, wood blocks, etc., this process generates noise (N) and dust (G);

(2) Granulation: The crushed raw materials are sent to the raw material bin by conveyor belt, and then conveyed by the auger into the granulator for granulation. The granulation is made into finished products by extrusion molding. The extrusion process is a physical process. No adhesive is added, no chemical reaction occurs, a small amount of dust and water vapor are generated in this process (G) and equipment noise (N);

Wood Sawdust pellet machine
Wood Sawdust pellet machine

(3) Inspection: The unformed or unqualified particles are screened out by the screening machine, and this part of the particles enters the crushing device to be reused without being discharged. This process generates dust (G) and noise (N);

(4) Packing and warehousing: products that have passed the inspection are packed and put into the warehouse. This process mainly produces waste packaging materials (S).

The above is the article for you: Annual Production of 15,000 Tons of Straw Wood Biomass Pellets. If you are interested in our products or project solutions, please contact us. We will give you the best product quality and the best price. Email:

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