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1. The working principle of  wet straw biomass pellet processing equipment

(1) Feed: The pre-treated straw raw materials are conveyed to the feed inlet of the pellet machine and uniformly sent into the pellet machine chamber by the feeder.

(2) High-pressure extrusion: The pressure rollers in the granulation chamber will tightly press the materials onto the ring or flat molds with mold holes (usually with diameters of 6-12mm), and the materials are squeezed into the mold holes under the action of huge pressure (usually 30-100 MPa).

(3) Cutting and shaping: After the materials are extruded from the mold holes, they form continuous cylindrical strips, which are then cut into particles of the set length by the high-speed rotating cutter, and finally cooled and transported through the cooling conveying system to complete the finished product.

2. Characteristics of  wet straw biomass pellet processing equipment

(1)Efficient Drying: Wet straw has a high moisture content and typically requires drying to reduce it to within 10-15%. Efficient drying equipment ensures that bagasse reaches the appropriate moisture content quickly, improving the subsequent pelletizing process.

(2) Durability: In straw pellet machines, molds and rollers are consumable parts, so processing equipment must be durable and have a long service life. Users should pay attention to maintenance. Our company uses highly wear-resistant molds and rollers, which have a significantly longer service life and yield than standard equipment.

(3)High Level of Automation: Modern wet straw pellet processing equipment is typically equipped with automated control systems, enabling continuous production, reducing manual intervention, and improving production efficiency and product quality consistency.

(4)Environmental Protection and Energy Saving: With growing environmental awareness, processing equipment should be energy-efficient and emission-reducing to minimize environmental impact. For example, using drying equipment with high thermal efficiency can reduce energy consumption.

(5)High Adaptability: Processing equipment should be flexible and adaptable to varying raw material characteristics and production scales.

3. Application scenarios of  wet straw biomass pellet processing equipment

(1) Boilers in small and medium-sized enterprises: Many small and medium-sized enterprises need to use boilers in their production process. Traditional coal-fired boilers are gradually restricted due to environmental issues. Biomass pellet fuel, as a clean energy, can replace coal for the boilers of these enterprises.

(2) Home heating and hot water systems: With the improvement of environmental awareness and the government's support for clean energy, biomass pellet fuel has also begun to enter the home market. It can be used for home heating and hot water systems, such as fireplaces, heating stoves, etc.

(3) Agriculture and forestry: In the fields of agriculture and forestry, biomass pellet fuel can be used to dry grains, heat greenhouses, etc. In addition, biomass pellet fuel made from crop waste can also help farmers deal with agricultural waste such as straw and reduce environmental pollution.

(4) Industrial production: Some industrial production processes require a lot of heat energy, such as food processing, textiles and other industries. Biomass pellet fuel can be used as a heat energy source for these industries, reducing dependence on traditional fossil fuels.

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TONY Brand 48-60 TPH Wet Straw Line can process wet straw and various biomass materials related to agricultural waste into biomass pellets. Straw processing into biomass pellets has a wide range of uses .As fuel: straw pellet fuel can be used as boiler fuel for power plants, industrial boilers, civil heating and other fields. Its calorific value is similar to coal, but the price is lower, and the combustion process produces fewer pollutants, is a more environmentally friendly fuel. As feed: Straw pellets processed by straw pellet machining can be used as feed for livestock. This method can make full use of crop straw, reduce feed costs, and also help solve the problem of straw disposal. These uses can not only effectively use agricultural waste, reduce environmental pollution, but also create economic benefits and promote sustainable agricultural development.

1. Capacity: 48-60 Ton/Hour

2. Raw materials: Wet straw, including wet corn straw, wet wheat straw, wet cotton straw, wet flax straw, wet beet straw and other agricultural straw

3. Moisture: About 30-35%

4. Application: All kinds of  biomass materials suitable for pellet production.

Suitable customers: Green energy companies, agricultural cooperatives, and small - scale rural processing units that have ready access to wet straw and related agricultural residues.

5. Finished Pellets Markets: Large power plants, domestic heating systems in rural and suburban areas, industrial heating facilities in rural - based industries, combustion heat applications in local manufacturing units, heating systems in rural schools and community centers, boiler rooms in small - scale rural enterprises, and canteens in rural educational institutions.,farms, feed mills.

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1. Project Name: Wet Straw Production Line

2. Raw Material: Bales of  Wet Straw

3. Moisture Content of Raw Material: 30-35%

4. Capacity: 48-60TPH

5. Process: Grinding Process - Fine Crushing Process - Straw Dust Storage Process-Drying Process-Pelletizing Process - Cooling Process - Packing Process

6. Main Equipment: Straw Cutter -TPX3500-200kw, Effective Hammer Mill- TFD120*200-355kw, TONY Large Hydraulic Storage Silo,Rotary Drum Dryer-3.2*28m ,TONY Pellet Machine-TYJ860-III-280kw, Galvanized Pellets Cooler, Ton Packing Machine and Belt Conveyors

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1.Grinding Process:

A.The process is mainly used to grind wet straw within 3m in diameter into wet straw pieces. The rotary cutting mode of the outer chain of the gear, the rotary cutting rotor blade is sharp, and the blade types are various, which can be rotated to cut various bales of straw with different diameters, different thicknesses, different lengths and different water contents

B.TONY brand straw cutter TPX3500-200kw models *5sets

C.Capacity:10-12Ton/Hour/Set

Main Parts:

(1)Tony's New Straw Cutter

(2)Enlarged Turntable

(3)Rotary Cutting System

(4)Drive system

(5)Electrical Cabinet.

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2.Fine Crushing Process:

A. The process is mainly used to crush 60-70mm wet straw pieces into 8-14mm wet straw dust.

B.TONY brand effective hammer mill TFD120*200-355kw *5sets.

C.Capacity: 48-60tons/hour.

Main parts:

(1)TONY Effective Hammer Mill

(2)Galvanized Dust Collector.

(3)Sawdust Conveying Fan.

(4)Cyclone With Airlock.

(5)Electrical Cabinet.

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3.Straw Dust Storage Process:

A. This process is mainly used to storage the straw dust that comes out of the hammer mill.It is hydraulic galvanized storage silo which is more stable and straw dust in it is not easy to be blocked. 

B.TONY Brand Large Hydraulic Storage Silo to storage the straw dust that comes out of  the hammer mill.This process can be optional by customer.If customer do not chose the storage bin,he can storage the sawdust on the ground directly which may need some labour.                        

Main Parts:                                                                                                                                   

(1)TONY's new Large Hydraulic Storage Silo.

(2)With Screws Inside the Storage Bin to Prevent Straw Dust Blocked.

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4.Drying Process: 

A.This process is mainly used to dry the straw dust from 30-35% to 10-15%.  B.Capacity: 48-60 Ton/Hour. 

C.TONY use 5 sets of 3.2*28m rotary drum dryer for this process,TONY hot stove is made of firebrick pan, shell with H steel plate as the frame.   There are 3 layers of fire blocking device inside, which can effectively prevent the fire from entering the tumble dryer.Customers can choose to use waste wood, biomass pellets, natural gas, etc. as fuel for the hot air furnace

TONY dryer use spiral tube material, and is not easy to deform.Unlike other manufacturers with iron plate splicing welding, very easy to deformation.

Main Parts: 

(1)TONY's Rotary Drum Dryer Main Body.(Reducers With Motors and Pips)

(2)TONY's  Hot Stove.

(3)Fan Blower+Cyclone With Airlock.

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5.Pelletizing Process:

A.This process is mainly used to products pellets with φ6-8mm.

B.TONY brand vertical ring die pellet machine TYJ860-Ⅲ-280kw *12sets

C. Capacity:48-60Ton/Hour.

D.Double Screw Cycling Silo is added above the pellet machine, which has the advantages of saving space, saving labor, intelligently controlling the feeding speed, not easy to block the material, and improving production efficiency.

Main Parts:

(1)TONY New Vertical Ring Die Pellet Machine.

(2)Cyclone And Bags Dust Collectors.

(3)Bearings Automatic Lubrication System.

(4)Electrical Cabinets.

For more equipment details and information, you can contact TONY

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6.Cooling Process:

A.This process is mainly used to cool pellets from 80-90℃ to 20-30℃

B.TONY brand galvanized pellets cooler*3sets

C.Capacity:48-60 Ton/Hour.

Main Parts:                                                                                                                                   

(1)TONY's new Galvanized Pellets Cooler Separator With Vibrating Screen.

(2)Cyclone and bags dust collectors.  

(3)Fan Blower.

(4)Connect Pipes.

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7.Packing Process:

A.This process is mainly used to pack pellets into 1Ton/Bags. 

B.TONY brand ton packing machine*3sets

C.Capacity: 48-60 Ton/Hour.

Main Parts: 

(1)TONY Ton Packing Machine

(2)Electronic Platform Scale Metering System

(3)Automatic Tare, Zero, and Drop Correction Functions

(4)Feeding System Features Fast, Medium, and Slow Feeding Speeds to Ensure Measuring Accuracy

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Against the backdrop of intensifying global climate change and accelerating energy transitions, the wet straw biomass pellet project is experiencing unprecedented opportunities. As an innovative project integrating environmental protection and commercialization, it utilizes advanced technology to transform agricultural waste (such as damp rice straw and corn stalks) into high-density pellet fuel for applications in heating and power generation. This not only addresses the pollution caused by straw burning but also creates economic value, addressing the "dual carbon" goals (carbon peak and carbon neutrality). The wet straw biomass pellet project focuses on directly processing damp agricultural residues (such as rice and wheat straw) into standardized pellet fuel. Compared to traditional biomass pellets, wet straw processing avoids the high energy consumption of the drying process, significantly reducing costs while improving resource utilization. The core of the project is "turning waste into treasure"—converting a polluting source into clean energy.

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1. Economical and Widely Applicable

Biomass (pellet) gasification combustion boilers offer significant economic advantages. Replacing oil, gas, or electric heating boilers can significantly reduce operating costs for users. While similar in price to coal, their superior environmental performance and renewability are unmatched by coal-fired boilers. Straw fuel's high volatility and flammability make it suitable for a wide range of applications, including coal-fired boilers under 1 t/h, tea bath furnaces, and low-temperature kilns for drying and heat treatment. With minor furnace modifications, it can be directly used. Larger boilers and special-purpose kilns can also be used with appropriate measures.

2. High Combustion Efficiency and Energy Conservation

Because straw fuel has high volatility, low ash and moisture content, and is highly flammable, it minimizes heat loss from mechanical, chemical, and incomplete combustion, resulting in combustion efficiencies exceeding 95%.

In summary, wet straw biomass pellets offer the advantages of being renewable, low-pollution, economical, widely applicable, and highly efficient.

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