What are the common combinations of corn processing machinery when using multi-layer screening?

In the production process of corn processing machinery, one layer of sieve surface cannot achieve the screening effect, and it is necessary to combine multiple layers of sieve surface to effectively carry out screening. In fact, corn processing machinery can combine sieve surfaces for screening. What are the common combination methods for corn processing equipment when using multi-layer screening?

Generally speaking, there are three types of multi-layer screen combination methods for corn processing machinery: display screen combination method, display screen combination method, and hybrid method.

1. Sieve on material method: The sieve on material is continuously cleaned one by one to separate the undersize material with different particle sizes. The size of the sieve hole ranges from bottom to large, and the particle size of the material under the sieve also ranges from fine to coarse. The sieving method first extracts fine particles and then extracts coarse particles. The screening route for large particle materials is long and is commonly used in the separation process of waste and by-products.

2. Under sieve method: The under sieve material is continuously sieved one by one to separate the above sieve material with different particle sizes. The size of the sieve hole ranges from large to small, and the particle size of the material on the sieve ranges from coarse to fine. Its characteristic is to extract coarse particles first, followed by fine particles. The screening route for small particle materials is long, and is generally used for procedures such as drum cleaning and grain rough separation.

3. Mixing method: A combination method of sieve surface combining the above sieve method and the below sieve method, with cross configuration of sieve pore size. The mixed method combines the characteristics of both methods, therefore, it has the characteristics of flexible screening process to meet the needs of screening process. This method is commonly used to instruct programs such as sieve removal.