This is the use of crop corn stalks, wheat straw, rice straw, peanut shells, corn cob, cotton stalks, soybean pole, chaff, weeds, branches, leaves, sawdust, bark and other solid waste as raw material, crushing, pressing , densification, molding, into small solid particles of fuel rod. Particulate fuel is utilized under normal temperature conditions and pressure roller ring mold on wood chips, straw and other materials made of extrusion. The density of the raw material is generally about 110-130kg / m3, particle density after forming is greater than 1100kg / m3, transportation, storage is very convenient, but its performance has been greatly improved combustion.
Straw fuel particle machine process:
Collection of raw materials → raw materials drying → crush → → mechanical granulation molding bagging sales depending on the harvest of crops in a timely manner to store a large number of raw materials, followed by pulverization, molding. Do not pay attention then bagging molding, because the principle of thermal expansion and contraction to be cooled for 40 minutes, then bagging transport.
Characteristics of straw fuel particle machine:
After forming the pellet fuel, heavy, small size, resistance to burning, easy to store and transport. After forming the volume of raw material volume of 1/30 to 40, the proportion is 10 to 15 times the raw material (density: 0.8-1.4) the calorific value of up to 3400 to 6000 calories, high volatile phenol solid fuel.
Use straw fuel particle machine:
After forming the straw pellet fuel is a new type of bio-energy, it can replace firewood, coal, fuel oil, liquefied petroleum gas, widely used for heating, living stove, hot water boilers, industrial boilers, biomass power plants.
The process includes raw material crushing, drying, conveying, compounding, feeding, forming, cutting, cooling, metering and packaging processes, on the whole can be divided into three steps, namely raw material pretreatment steps, forming solid steps, supporting ancillary section, as follows:
1) raw material pretreatment station
Pretreatment of raw materials section, including raw materials receiving, grinding, drying, compounding and other processes.
Receiving raw materials: biomass materials from stockyard transported to the feed shed, stacked in sequence along the direction of the feed conveyor, ready to feed. Meanwhile, the temporary storage of raw materials, in order to ensure an adequate supply of raw material continuously in one shift.
Coarsely crushed: Due to the large crop stalks and other biomass materials size, cannot be directly used for molding, the main task is to coarse pulverization process larger size straw chopping into short, thin granular materials to prepare for the second finely divided .
AFC: from the raw material supplied to the fine crusher crushing process, after the secondary pulverization, particle size less than 5 mm, raw materials delivered to the warehouse, but can also be the raw material for natural drying.
Promotion and mixed: Hoist the raw materials temporarily stored in the warehouse, copy board installed in the warehouse, the raw materials are stirred and mixed, to ensure smooth feeding, forming continuous production.
Screw conveyor: to ensure continuous, uniform feeding.
2) forming a solid section
Forming section including quenched solid feeding, forming, cutting and other processes.
Quenched feed: raw material warehouse quenched powder mixed continuously and stably transported to the molding equipment.
Solid forming: from a solid raw material extrusion molding machine.
Off: the solid machine built with an adjustable cutter gap, according to user needs to squeeze out of the fuel-cut, easy storage and transportation packaging.
3) auxiliary supporting section supporting ancillary section comprising cooling, dust, air compressor, add water, metering and packaging processes.
Cooling: from the solid molding machine just out of the briquette temperature 75 ~ 85 ℃, easily broken in this state, not storage. Task cooling step is to molding after high-temperature fuel to cool: its temperature can reach Packaging storage conditions. The entire process of matching a combination of cooler by cooling step away briquette heat and moisture.
Dust: A cyclone pulse dust cleared of dust production process, meet the state standards.
Addition of water: According to the characteristics and the moisture content of the raw material, the moisture content in the humidity appropriately added to meet the requirements of the solid molding.
Weighing and packaging: the finished metering, packaging machinery to achieve. As As the 2t/h straw pellet production line, please check the equipment list
No |
Name |
Model |
Qty(set) |
Power (kw) |
1 |
Straw crusher |
RGW600 |
1 |
22 |
2 |
Belt conveyor |
B500×8 |
1 |
3.0 |
3 |
Rotary dryer |
Φ1.2×12m |
1 |
11 |
4 |
Belt conveyor |
B500×8 |
1 |
3.0 |
5 |
Bucket elevator |
HL250×12 |
1 |
3.0 |
6 |
Silo |
RGS-Φ2×6 |
1 |
4.0 |
7 |
Screw conveyor |
RGSC219×5 |
1 |
3 |
8 |
Straw briquette machine |
CXJ-72 |
1 |
22 |
9 |
Packing machine |
RGZ-100 |
1 |
2.2 |