This is a 10-ton wood pellet plant in Mexico project. The client uses wood waste and straw as raw materials. The total labor quota for this project is 6 people, with an annual working time of 300 days and 16 hours per day.
Today, USA and Canada are the world's largest pellet exporters, and North America is also the second largest consumer of biomass fuel pellets in the world. Because North American biofuel pellets have a better reputation in the world, as a member of North America, Mexico has this inherent advantage. The Mexican customer's 10t/h wood sawdust pellet plant project is the customer's investment attempt to seize the opportunity to expand the wood pellet manufacturing scale.
The customer has previously cooperated with other manufacturers on a small wood pellet production line. Since it has been in wood pellet production for more than a year, the quality of the wood pellet manufacturing equipment and the quality of the finished pellets are far from the customer's requirements, and machine failures often occur in production. This time Mexican customer chose to cooperate with Richi Machinery, which is the trust and hope that our customers have after visiting Richi wood pellet equipment and understanding the achievements of Richi in the field of wood pellet manufacturing.
This biomass fuel wood pellet production line is large in scale, innovative in design, highly automated,and adopt the turnkey service promoted by Richi in recent years. From pellet plant design, construction to installation and trial operation, Richi contracted whole renewable energy wood biomass pellet plant construction work.
Name:
Wood Pelletizing Plant Project
Country:
Mexico
Date:
April 13th,2019
Capacity:
10T/H
Feed Pellet Size:
8mm
The install period:
30 Days
Total Power:
732KW
Guiding Price:
590,000 USD
The wood pellet plant in Mexico project processes 50,000 tons of biomass fuel pellets annually. The project covers an area of 4,000m2, of which the plant area is 2,000m2. The internal divisions are 1,200m2 of production area, 800m2 of raw material area, and 100m2 of office area. The construction content of this project is shown in the table below:
| Project Name | Location and Scale | ||
| Main Project | Factory | Production Area | 1200m2, located on the north and west sides of the workshop, production line setting area |
| Finished Product Area | 800m2, located on the east and south sides of the workshop | ||
| Auxiliary Project | Raw Material Yard | Located on the west side of the yard | |
| Office Area | The office and living area is located on the northwest side of the yard, 600m2, used for raw material stacking, site hardening, and roof construction | ||
| Public Project | Water supply | Municipal pipe network water supply | |
| Power supply | Local power supply system | ||
| Drainage | Rainwater and sewage separation | ||
| Environmental protection project | Noise reduction | Choose low-noise equipment, building sound insulation, foundation shock absorption | |
| Solid waste treatment | General solid waste | Build a 10m2 general solid waste temporary storage room, collect dust with dust collector and store it for reuse, and remove domestic waste by sanitation department | |
| Wastewater treatment | Domestic sewage | Discharge into sewage treatment plant | |
| Waste gas | Crushing, grinding and feeding | Enclosed workshop + spray facilities + gas collection pipeline + equipment with dust collector + bag dust collector + 15m high exhaust pipe (1#) | |
The raw materials and energy consumption of the biomass straw wood pellet plant in Mexico project and the properties of the raw materials are detailed in the table below.
| Serial number | Name | Unit | Annual consumption |
| 1 | Wood, straw, sawdust | t/a | 58800 |
| 2 | Water | m3/a | 204.8 |
| 3 | Electricity | Kw·h/a | 800,000 |
| Raw material name | Physical and chemical properties | ||
| Wood, straw, sawdust, etc. | Straw is recycled by households in surrounding villages, and waste is purchased by wood processing enterprises. | ||
Based on the customer's raw materials and needs, we designed the process for the wood pellet plant in Mexico as follows. The moisture content of the customer's raw materials is less than 18%, so there is no need to configure a drying section.
The raw materials are chipped and crushed in the production workshop, and the crushed raw materials are about 3mm.
In the production process, the wood biomass pellet machine is the key equipment of the production line. The raw materials contain a certain amount of lignin and cellulose. Its lignin is a structural monomer in the material and a high molecular compound. It has the function of strengthening the cell wall and bonding cellulose. Lignin is a non-crystalline, and the main part is insoluble in any solvent at room temperature.
It has no melting point, but has a softening point. When the temperature reaches a certain value, the softening and bonding force of lignin increases. Under a certain pressure, the cellulose molecular clusters are dislocated, deformed, and extended. The adjacent biomass particles inside are interlocked, recombined and pressed into shape.
After the biomass pellet are pressed, they are packaged according to the specified weight and put into storage for sale.
| Equpment list | Details |
|---|---|
| Good quality wood crusher | SFSP68*120, power 200kw, capacity: 6-8T/H( raw material moisture 40%) |
| Cleaning equipment | MCY160*300, power 3kw, designed output 5-8T/H/set |
| Mixing machine | SLHY5, host power 30KW, continuous ribbon mixer. |
| Wood pellet mill | MZLH420, main motor power: 90kw, power of forced feeder: 0.75kw, design with 0.8-1.2T output. |
| Wood pellet cooler | MKLB4, cooling volume : 4m3, design with 5-7t/h output. |
| Automatic bagging machine | MDBLY-K，bag size20-50kg/bag，packing speed: 3-5bag/min. |
The wood pellet plant in Mexico project construction adopts a construction method combining machinery and manpower. The main construction machinery includes excavators, loaders, vibrators, cutters, concrete transport vehicles, electric saws, construction elevators, material hoists, electric welders, etc. The main construction processes are:
The following steps and considerations need to be followed when building a biomass wood straw pellet production line project:
Through the above steps and considerations, a wood straw biomass pellet production line project can be effectively built and operated to achieve a win-win situation in terms of environmental protection and economic benefits.
Biofuel pellets have received increasing international attention lately because of their potential as clean, affordable and renewable energy sources, particularly when produced from agricultural and forest residues. However, knowl- edge about feedstock availability, costs, and potential users of biomass pellets is scarce in Mexico.
We estimate that the market energy potential for pellets from currently available agricultural and forest residues in Mexico is between 131 and 233 PJ/yr, with total costs ranging from 6.3 to 12.8 USD/GJ. Sawdust pellets have the lowest cost and could compete with chips and sawdust for supply distances greater than 400 km and 480 km, depending on the wood pellet production cost. At current fossil fuel prices, sawdust pellets could compete with LPG, fuel oil and residential natural gas.
Potentially, wood fuel pellets could completely replace natural gas demand and 73% of LPG demand for residential and commercial heating. To compete with coal and petroleum coke used in the industrial and power sectors, pellets would need an incentive of 30 and 50 USD per non-emitted CO2 over and above their selling price. Wood fuel pellets may potentially mitigate up to 18% of GHG emissions from electricity production in Mexico.
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