Crushing equipment is a key component in the mining, construction, and industrial processing industries, capable of crushing various materials into specific particle sizes. Based on the force applied, it can be categorized as either extrusion or impact crushers. Extrusion crushers, such as jaw, gyratory, cone, and roller crushers, crush materials by squeezing them between fixed and moving surfaces. They are suitable for hard materials like granite, producing less dust but more flake-like particles. Impact crushers, such as hammer and impact crushers, use high-speed rotating components to impact the material, causing high-frequency collision and shearing to pulverize the particles. They are commonly used for low- to medium-hardness materials, achieving high crushing ratios and fine particle shape.
Based on the operation stage, crushing equipment can be categorized as coarse, medium, fine, and sand-making and shaping equipment. Jaw or gyratory crushers are commonly used for coarse crushing, offering large feed openings and high processing capacity. Cone and impact crushers are used for medium and fine crushing. The former is suitable for hard rock, while the latter is used for low- to medium-hardness materials and produces fine particle shape. Vertical shaft impact crushers are often used for sand-making and shaping, offering high efficiency and controllable gradation. These equipments are matched with feeding, screening and conveying equipment to form a complete production line to meet the material processing needs of different industries.
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READ MORECrushing Equipment is a core section of material processing systems used in fertilizer production, building materials manufacturing, and bulk raw-material preparation. This category includes machines designed to reduce particle size, break down agglomerated materials, and prepare feedstock for subsequent processes such as mixing, granulating, or drying. Within complete production lines supplied by Nantong Alisen Environmental Protection Technology Co., Ltd., Crushing Equipment is commonly applied in compound fertilizer plants, organic fertilizer facilities, and building material production systems.
Principle: Material enters the crushing chamber and is impacted by high-speed rotating chains, causing fragmentation through impact and shear forces.
Applications: Suitable for brittle materials and for returning unqualified granules in fertilizer lines.
Advantages: Simple structure, uniform discharge size, continuous operation.
Principle: Two concentric cages rotate in opposite directions; material is crushed by the combined action of impact and centrifugal force.
Applications: Used extensively in compound fertilizer production.
Advantages: Fine and uniform particle size; effective for medium-hard materials.
Principle: High-speed blades cut fibrous or soft materials, achieving size reduction through cutting and friction.
Applications: Organic fertilizer plants, agricultural waste treatment.
Advantages: Suitable for wet or fibrous materials.
Principle: Rotating hammers strike the material, which is then forced through screens to control final particle size.
Applications: Building materials, chemical raw materials, and general mineral crushing.
Advantages: Adjustable output size; suited for medium-hard materials.
Compound Fertilizer Production: Crushing returned granules before re-granulation to maintain uniform particle distribution.
Organic Fertilizer Lines: Size reduction of compost, straw, peat, and animal-based materials.
Chemical Raw Materials: Preparation of powders before mixing or reaction processes.
Building Materials: Particle adjustment for lime, gypsum, or clay processing.
Nantong Alisen Environmental Protection Technology Co., Ltd. integrates these machines into complete fertilizer production lines to support consistent particle quality and stable downstream processing.
| Equipment Type | Suitable Materials | Particle Size Range | Structural Features | Typical Use |
|---|---|---|---|---|
| Chain Crusher | Brittle and returned granules | Medium | Rotating chain plates | Fertilizer lines |
| Cage Crusher | Medium-hard materials | Fine | Dual rotating cages | Compound fertilizer |
| Straw/Organic Crusher | Fibrous or soft materials | Coarse–medium | Knife/blade cutter | Organic fertilizer |
| Hammer Crusher | Medium-hard minerals | Adjustable | Hammer + screen | Chemical & building materials |
Regularly inspect chain plates, hammers, or blades for wear to ensure stable crushing efficiency.
Check bearing lubrication to avoid overheating and unbalanced rotation.
Monitor vibration and noise levels to identify early signs of rotor imbalance or material blockage.
Replace wearing parts (screens, blades, chain segments) based on actual running hours.
Ensure stable feeding to avoid overload and maintain uniform particle size.
Q1: How to choose the right crusher for a fertilizer plant?
A: Selection depends on material hardness, moisture, and required particle size. Chain and cage crushers are common for compound fertilizer production, while blade crushers are suitable for organic materials.
Q2: Can Crushing Equipment handle materials with high moisture content?
A: Organic material crushers can process wet, fibrous materials, but other types may require pre-drying.
Q3: What is the typical particle size after crushing?
A: Most machines produce particles in the range needed for mixing and granulating, adjustable through screen sizes or rotor speed.
Q4: How does Crushing Equipment integrate into a production line?
A: It is usually positioned before mixing or granulation and after screening systems to process returned materials.