In the metallurgical and energy sectors, the recovery of coke breeze and coal fines is essential for optimizing fuel efficiency and reducing waste. Our Coke Ball Press Machine utilizes high-pressure double-roller technology to compress fine-grained materials into uniform, high-strength briquettes (balls, pillows, or ovals). This mechanical cold-pressing process is engineered for heavy-duty industrial environments, ensuring the final briquettes can withstand the high-temperature loads of smelting furnaces and long-distance bulk transport.
Coke Ball Press Machine
The performance of a roller press is defined by its ability to maintain constant pressure across the material surface. Our technology focuses on:
Double-Roller Compression: Two counter-rotating rollers, manufactured from high-manganese alloy, force the material into precisely machined cavities. The synchronization of these rollers is critical for producing flash-free, perfectly formed briquettes.
Adjustable Hydraulic Tonnage: For materials with low plasticity, such as coke powder, our hydraulic station provides the necessary force to bridge the particles. The pressure can be calibrated based on the specific moisture and binder ratio of the feedstock.
High-Wear Alloy Construction: The rollers (the core wear part) are made from 65Mn, 9Cr2Mo, or High-Chromium Alloy, ensuring a long service life even when processing abrasive mineral fines or coke breeze.
A roller press is only as effective as the preparation of the material entering it. For industrial-scale operation, the press must be integrated into a synchronized system:
Upstream: Crushing & Homogenization: To ensure ball strength, coke breeze must be crushed to < 3mm. It is then fed into our Double-Shaft Mixers, where liquid or powder binders are distributed uniformly to reach the optimal moisture level (8%–12%) for pressing.
Downstream: Vertical or Mesh Belt Drying: Freshly pressed coke balls contain residual moisture that must be removed to reach their peak structural hardness. Passing them through a [Mesh Belt Dryer] ensures the briquettes reach a moisture content of 3%, making them ready for furnace charging.
Shape Customization: Standard molds produce pillow or round shapes (30mm–60mm), but custom dimensions can be engineered for specific furnace requirements.
High Qualification Rate: Our precision-aligned rollers ensure a 95%–98% formation rate, significantly reducing the volume of returned fines.
Force-Feeding Mechanism: For low-density or “fluffy” materials, an integrated screw pre-press feeder is utilized to degas the material and ensure the roller cavities are filled.
Q1: What is the best material for the rollers when pressing coke breeze?
A: Coke breeze is highly abrasive. We typically recommend 9Cr2Mo or High-Chromium alloy rollers. These materials offer superior surface hardness and fracture toughness, which are necessary to handle the friction of coke particles under high pressure.
Q2: Why do my Coke balls crumble after exiting the machine?
A: This is usually caused by an incorrect particle size distribution or a lack of binder consistency. If the material is too coarse or too dry, the mechanical bond won’t hold. We provide specific binder-ratio consultations to ensure your briquettes pass the “2-meter drop test” required for industrial use.
Q3: Can the machine handle other materials besides coke and coal?
A: Yes. This roller technology is widely used for charcoal powder, iron ore fines, gypsum, and magnesium powder. The core difference lies in the compression ratio and the roller surface pattern chosen for the specific material density.
