Heavy-Duty Lump Breaker for Ammonium Nitrate Size Reduction
.
The Challenge: Downsizing Petrified Ammonium Nitrate for Conveyor Feeding
In chemical and fertilizer processing, Ammonium Nitrate often forms large, petrified blocks. A client required a solution to reduce massive 500x400x85mm agglomerates down to a manageable size of less than 40mm. This was critical to prevent blockages in the downstream Φ150mm screw conveyor and ensure a continuous production flow.
In chemical and fertilizer processing, Ammonium Nitrate often forms large, petrified blocks. A client required a solution to reduce massive 500x400x85mm agglomerates down to a manageable size of less than 40mm. This was critical to prevent blockages in the downstream Φ150mm screw conveyor and ensure a continuous production flow.
.
The Solution: High-Torque Rotary Blade Lump Breaker
We engineered a series of Industrial Lump Breakers tailored to different material requirements, including stainless steel for chemicals and mild steel for meat meal.
We engineered a series of Industrial Lump Breakers tailored to different material requirements, including stainless steel for chemicals and mild steel for meat meal.
- Aggressive Shearing Action: The machine utilizes 12mm-thick radial rotating blades that work against heavy-duty fixed knives. This design shears through petrified blocks with ease.
- High-Torque Drive: A 4.0 kW gear motor running at 36 rpm provides the high torque necessary to break dense blocks without stalling.
- Optimised Flow: Because the target size was 40mm, the unit was designed without a discharge grid to maximize throughput while still ensuring all material meets the dimensions required for the 150mm auger.
.
The Result: Protected Downstream Equipment
The lump breaker acts as a vital “gatekeeper,” protecting the screw conveyor from mechanical damage and ensuring the material is free-flowing. As shown in our videos, the system handles both corrosive chemical salts and heavy meat-flour agglomerates with industrial reliability.
The lump breaker acts as a vital “gatekeeper,” protecting the screw conveyor from mechanical damage and ensuring the material is free-flowing. As shown in our videos, the system handles both corrosive chemical salts and heavy meat-flour agglomerates with industrial reliability.
.
.
Agglomerate Crusher – Technical Specifications Table
| Specification | Technical Details |
|---|---|
| Machine Type | High-Torque Rotary Lump Breaker |
| Primary Materials | Ammonium Nitrate (Petrified), Meat Flour |
| Infeed Size (Max) | 500 mm x 400 mm x 85 mm |
| Final Grain Size | < 40 mm (Optimised for Φ150mm Auger) |
| Blade Thickness | 12 mm Radial Rotating & Fixed Blades |
| Drive Power | 4.0 kW Gear Motor |
| Rotational Speed | 36 rpm |
| Construction Options | 316/304 Stainless Steel or Mild Steel |
| Discharge Design | Open-base (No grid) for high-flow sizing |
.
Material Selection: Stainless Steel vs. Mild Steel
Choosing the correct alloy is critical for the lifespan of a lump breaker. We offer two primary construction standards depending on the material’s chemical properties:
- Stainless Steel (Grade 304/316):
- Best for: Ammonium Nitrate and Chemical Salts.
- Why: Ammonium nitrate is highly hygroscopic and corrosive. Stainless steel prevents “pitting” and oxidation, ensuring the rotating blades remain sharp and the body maintains structural integrity over years of exposure to chemical moisture.
- Mild Steel (Carbon Steel):
- Best for: Meat Flour, Bone Meal, and Dry Aggregates.
- Why: For non-corrosive organic materials like meat flour, mild steel offers a highly cost-effective and robust solution. It provides excellent mechanical strength for crushing hard lumps where chemical corrosion is not a risk factor.