100150kgh small capacity biodegradable custom rice straw whole line
Product Description
Here are the general steps to make biodegradable products from rice straw using an extruder: ### 1. Raw Material Preparation - **Collection and Cleaning**: Gather rice straw from reliable sources. Ensure that the rice straw is free from contaminants such as soil, stones, and other debris. Wash the rice straw thoroughly with water to remove dirt and dust. Then, let it dry in the sun or in a well - ventilated area until the moisture content is reduced to an appropriate level, usually around 10 - 15%. - **Pre - treatment**: Cut the dried rice straw into small pieces, typically around 1 - 3 cm in length. This helps in the feeding process and improves the mixing and processing efficiency in the extruder. You can also consider shredding the rice straw to make it finer if necessary. ### 2. Additive Selection and Mixing - **Additives**: To enhance the properties of the biodegradable product, various additives can be used. For example: - **Binder**: A biodegradable binder such as starch (e.g., corn starch or potato starch) can be added to help hold the rice straw particles together. The amount of binder added usually ranges from 10 - 30% of the total weight of the rice straw. - **Plasticizer**: Glycerol or other biodegradable plasticizers can be added to improve the flexibility and processability of the mixture. The plasticizer content is typically around 5 - 15% of the total mixture. - **Filler (Optional)**: Some natural fillers like wood flour or cellulose fibers can be added to further improve the mechanical properties of the product. - **Mixing**: Thoroughly mix the pre - treated rice straw, binder, plasticizer, and other additives (if any) in a large mixer. The mixing process should ensure a homogeneous distribution of all components. This can be achieved by mixing for about 15 - 30 minutes at a moderate speed. ### 3. Extrusion Process - **Extruder Setup**: Select an appropriate extruder based on the production scale and the desired product properties. For processing rice straw - based materials, a twin - screw extruder is often preferred due to its better mixing and kneading capabilities. Set the temperature zones of the extruder according to the characteristics of the materials. The feeding zone temperature can be set relatively low, around 80 - 100°C, to facilitate the smooth feeding of the mixture. The melting and shaping zones can be set at higher temperatures, usually in the range of 120 - 180°C. - **Feeding the Mixture**: Load the well - mixed rice straw - additive mixture into the hopper of the extruder. The extruder's screw mechanism will transport the mixture forward through the barrel. As the mixture moves through the barrel, it is subjected to high pressure and shear forces. These forces cause the components to blend further, and the heat from the extruder barrel helps to soften the binder and plasticizer, enabling the formation of a homogeneous mass. - **Shaping**: At the end of the extruder barrel, a die is installed to give the extruded material a specific shape. The shape of the die depends on the final product requirements. For example, if you want to make biodegradable sheets, a flat - shaped die can be used; for making rods or tubes, corresponding die shapes are selected. ### 4. Cooling and Solidification - **Cooling**: After extrusion, the hot extruded product is immediately cooled. This can be achieved by passing it through a cooling conveyor belt or by using a water - cooling system. The cooling process helps the product to solidify and maintain its shape. The cooling rate should be controlled to avoid cracking or warping of the product. - **Cutting (if necessary)**: If the extruded product is in the form of a continuous strand, it can be cut into the desired length using a cutting device. The cutting operation should be precise to ensure consistent product dimensions. ### 5. Post - treatment and Quality Control - **Post - treatment**: Some post - treatment processes may be required to improve the product's properties. For example, annealing the product at a certain temperature can enhance its mechanical strength. Additionally, surface treatment can be carried out to improve the product's appearance or to make it more resistant to environmental factors. - **Quality Control**: Conduct various quality control tests on the biodegradable rice straw product. These tests may include measuring the mechanical properties such as tensile strength, flexural strength, and elongation at break. Also, check the biodegradability of the product by conducting biodegradation tests according to relevant standards. Ensure that the product meets the required specifications and quality standards before packaging and distribution. ### 6. Packaging and Storage - **Packaging**: Package the finished biodegradable rice straw products using suitable biodegradable packaging materials. This helps to protect the products during storage and transportation and also maintains their environmental - friendly nature. - **Storage**: Store the packaged products in a dry and cool place to prevent moisture absorption, which can affect the product's properties. Avoid storing the products in direct sunlight or in an environment with high humidity.
Company Profile
Jinan Sunward Machinery Co., Ltd is an industry and trade integrated enterprise. The company is committed to R & D extrusion machinery and related ancillary equipments. It is covering mainly machinery and equipment for corn meal milling system, corn flakes/breakfast cereal system, baby food system, corn puff snacks system, pellets system, artificial rice system,soy nuggets system; as well as pet food/fish food system.
SPECIFICATIONS
| Model |
Main motor |
Output |
| TSE65 |
22kw |
100kg/h-150kg/h |
| TSE70 |
30kw |
200kg/h-250kg/h |
| TSE85 |
55kw |
300kg/h-500kg/h |
| TSE90 |
75kw |
800kg/h-1000kg/h |
Certification
Package
){kind=link}