1. Core Mechanism Overview
The machine operates based on high-speed impact, shearing, friction, and airflow classification to break down dry corn stalks into fine, uniform particles.
2. Step-by-Step Working Process
- Feeding & Guiding
Dry corn stalks are fed into the hopper (or inclined feed chute) and enter the enclosed crushing chamber. Some models use auxiliary rollers to pull stalks evenly into the chamber for continuous processing.
- High-Speed Impact & Initial Crushing
The motor drives the rotor assembly (equipped with movable hammer blades) to rotate at high speed (typically 2000–6000 RPM). As stalks enter the chamber, they are immediately struck by the hammers, causing primary fragmentation into small segments.
- Secondary Shearing & Friction
Broken stalks are repeatedly:
- Sheared by the rotating hammer blades
- Rubbed against the serrated tooth plates on the chamber wall
- Collided with each other
This action tears and grinds the stalks into finer fibers/particles.
- Screening & Classification
A perforated screen (with adjustable hole sizes) lines the bottom of the crushing chamber. Only particles small enough to pass through the screen fall through. Oversized pieces are retained inside the chamber for further hammering until they meet the required size.
- Discharge & Collection
- Gravity discharge: Fine material falls directly into a collection bin below.
- Air-assisted discharge: Most models use a built-in blower to suck the crushed material out through a discharge pipe (like the blue vertical pipe in your image), preventing clogging and carrying particles to a cyclone collector or bag.
3. Key Technical Advantages of This Design
- Efficient on dry, brittle stalks: The hammer impact mechanism is ideal for processing low-moisture corn stalks, which are prone to shattering rather than deforming.
- Adjustable output size: Changing the screen hole diameter allows you to produce coarse chop (for animal feed) or fine powder (for fertilizer/biomass fuel).
- Self-cleaning airflow: The negative pressure created by the blower keeps the chamber clear of dust and unprocessed material, improving reliability.