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Roller crusher is also known as roll crusher, which relies on the high-speed rotation of roll wheel to crush materials. The commonly used roll crusher types include double roller crusher, toothed roller crusher, four roller crusher, etc.
Roll crusher, as one of the most economical and practical crushers, is designed to handle the first and second crushing of friable minerals and stones such as coal, clay, coal gangue, limestone, slag, cement clinkers, and shale, etc.
Roll Crusher is suitable forRiver gravel, iron ore, limestone, basalt, quartz, granite and other medium or hard ores and rocks in metallurgy industry, cement industry, power department, construction, phosphate, refractory industry, etc.
The counter-roller crusher pulls the material on the roller surface into the crushing cavity, so that the material is crushed by the stress mainly caused by squeezing, and is taken out of the crushing cavity by the rotating roller and discharged as the crushed product.
According to the surface of rolls, it can be divided into smooth roll crusher and toothed roll crusher. (The following roll crusher refers to “smooth roll crusher”.)
Our company produces 3 types of roll breakers: Roller crushers,Toothed rollers and hydraulic rollers.
The main working parts of the roller crusher is the cylindrical rollers. The rollers are supported by the fixed and movable bearings, and they are relatively rotating which are driven by the motor. The materials are crushed by the friction of the rotating rollers, and the finished products are discharged from the gap of the rollers.
The spring is used to balance the pressure generated between the rolls. If there are non-crushed materials falling between the two rollers, the compression spring of bearings can be pushed to make a large gap so that non-crushed materials can be discharged immediately.
After the non-crushed materials are discharged, the spring can help recover the gap between the rollers to the original condition and the roll crusher continues to work.
| Model | 2PG0425 | 2PG0640 | 2PG0740 | 2PG0850 | 2PG1060 | 2PG1260 | 2PG1560 |
| Roller Diameter(mm) | Ф400 | Ф600 | Ф700 | Ф800 | Ф1000 | Ф1200 | Ф1500 |
| Roller Width(mm) | 250 | 400 | 400 | 500 | 600 | 600 | 600 |
| Input Size(mm) | ≤25 | ≤25 | ≤25 | ≤25 | ≤30 | ≤30 | ≤30 |
| Discharging Gate(mm) | 2-8 | 2-8 | 2-8 | 2-8 | 2-10 | 2-10 | 2-10 |
| Processing Capacity(t/h) | 5-10 | 10-20 | 15-30 | 20-40 | 30-50 | 40-70 | 60-110 |
| Power Models | Y132M-6 | Y180L-6 | Y200L-4 | Y225M-4 | Y250M-4 | Y315M-6 | Y315L-6 |
| Motor Power(kw) | 5.5×2 | 15×2 | 30×2 | 45×2 | 55×2 | 75×2 | 110×2 |
Answer: Key factors influencing separation include the table’s motion (stroke and frequency), water volume and slope, feed rate and concentration, and the feed material’s particle size and shape. Proper adjustment of these factors is critical for efficient separation. The table’s longitudinal and transverse slopes must be precisely controlled. The feed concentration should also be appropriate, typically 20-30% for coarse minerals and 15-25% for fine minerals.
Answer: Operation involves observing the bed surface and adjusting the slope, water flow, and feed rate. Regular maintenance includes checking for loose parts, lubricating moving components, inspecting for wear, and cleaning the table surface. Preventative maintenance should be performed regularly, with intervals ranging from every month to once a year.
Answer: Common issues can include table shaking or choppy cuts, uneven material distribution, or poor separation. Troubleshooting may involve checking for loose bolts, damaged springs, or misalignment, adjusting belt tension, inspecting electrical components, and ensuring proper lubrication. If there’s unusual noise, identify the source and eliminate the problem.
Answer:
Advantages: Shaking tables offer high enrichment ratios, are relatively simple to operate, and produce visible separation zones, allowing for easy adjustment and monitoring. They are suitable for a wide range of particle sizes and densities.
Disadvantages: They typically have lower throughput capacity compared to some other methods like jigs or spirals. They also require a relatively large footprint and consume a significant amount of water.
Answer: The selection depends on the material being processed, the desired throughput, and the particle size range. Factors to consider include the deck area, stroke length, and riffle design. Consulting with a manufacturer or expert is recommended to determine the optimal configuration.
