Rice Husk Straw Mixed Pellet Mill

Brief Introduction

The rice husk and straw mixed pellet mill is a biomass molding equipment specifically developed for mixing and pelletizing rice husks and straw, two materials with significantly different physical properties. Rice husks have high silica content and are prone to wear, while straw fibers are long, tough, and easily bridging and wrapping around rollers. Ordinary pellet mills are prone to slippage, mold blockage, and loose pellets during mixing. The rice husk and straw mixed pellet mill uses a variable compression ratio mold, reinforced wear-resistant pressure rollers, and a frequency conversion forced feeding mechanism, adaptable to processing rice husks and straw in different proportions. This mill can directly compress agricultural waste such as rice husks and various types of straw into qualified biomass pellets. The equipment balances wear resistance with fibrous material processing capabilities, making it suitable for grain-producing areas, crop straw recycling and processing plants, and biomass fuel production enterprises, addressing the production needs for the simultaneous resource utilization of two types of agricultural waste.

Working Principle

Rice straw is first shredded into short fiber segments, then proportionally blended with rice husk. The combined material passes magnetic separation and screening to remove soil, stones and metal impurities. Moisture is homogenized to offset the natural moisture difference between husk and straw, creating uniform feedstock suitable for extrusion. The qualified mixture is fed evenly into the pelletizing chamber for high-pressure compression. Fresh hot composite pellets flow through air cooling and sifting to separate fine dust before packaging and delivery.

Main Parts

TONY's Rice Husk Straw Mixed Pellet Mill

Main Spare Parts

Parameter

Suitable Raw Materials

The rice husk and straw mixing pellet mill mainly processes mixtures of rice husks with corn straw, wheat straw, and rice straw, supporting various blending ratios. It can also process rice husks or various crop straws alone, and is compatible with blending with other agricultural and forestry byproducts such as rice husks, peanut shells, and fine sawdust. The raw material moisture content is controlled at 12-17%, and the material can be fed into the mill after being crushed to a suitable particle size; pretreatment is simple and flexible.

Application Areas

The mixed biomass pellets produced by the rice husk and straw mixing pellet mill burn stably and can be used as clean energy fuel in industrial boilers, district heating, and biomass power plants. The finished pellets can be sold externally or processed into organic fertilizer substrate. The equipment consumes farmland straw and rice husks from rice mills on-site, reducing the land occupied by field burning and waste dumping, alleviating the environmental pressure of agricultural solid waste, and transforming cheap agricultural by-products into value-added products.

Details

1. HUIXIN Gearbox: Heavy-duty HUIXIN gearbox delivers variable torque output to handle alternating resistance from abrasive husk particles and elastic straw fibers.

2. Rotating bracket: Reinforced rotating bracket dampens vibration generated by the uneven bulk density and mixed particle forms of husk and straw.

3. Reducer: Precision matched reducer maintains reliable power transfer under frequently changing loads of the blended agro feedstock.

4. 304 stainless steel dust cover: 304 stainless steel dust enclosure resists dual abrasion from silica husk dust and corrosive straw ash.

5. Internal lifting knife: Built-in internal lifting knife cuts tangled straw fiber clusters and breaks compacted husk piles to prevent cavity bridging.

6. Adjustable blades: Adjustable blades set suitable feed thickness to match the hybrid characteristics of granular husk and long straw fiber.

Unique Advantages

1.Mill assembly: Custom ring die and roller set balanced for both silica particles and herbaceous fiber, reducing die wear and fiber winding failures in mixed production.

2.HUIXIN gearbox: Professionally calibrated HUIXIN gearbox with shock-resistant tooth structure, performing more stably under fluctuating mixed-material loads than generic gearboxes.

3.Stainless dust cover: Monolithic 304 stainless dust shield replaces ordinary painted steel, resisting long-term scratching and ash corrosion from husk-straw mixed dust.

4.Bottom feeding reducer: Optimized under-feed reducer prevents layered segregation of heavy rice husk and light straw fiber, avoiding uneven feeding and chute blockage.

5.Cooling system: Staged air cooling design balances thermal shrinkage of husk and straw components, minimizing cracking and powder generation of composite pellets.