What is the method of transporting dry acetylene calcium carbide slag?
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The moisture content of calcium carbide slag in dry acetylene production is around 5%; it tends to generate dust and can also explode when mixed with air. The methods used for transporting dry acetylene include belt conveyors, truck transport, or pipeline transport – which method is the best? I would appreciate guidance from experienced experts.
Cars are generally used for transporting over long distances, and they generate a lot of dust during loading and unloading； The belt conveyor has a relatively short conveying distance, it integrates well with the system, and is widely used ； Piping has high resistance to flow and is relatively more dangerous, so it is generally used very rarely.
Isn’t the slag discharge port equipped with a screw conveyor?
3# Freezing point 121: From the calcium carbide slag bin to the cement slag storage.
If the distance is short, belt conveyors are generally used for transportation. It should be noted that if the moisture content of your calcium carbide slag is only 5%, the reaction may not be complete; typically, the moisture content should be between 8% and 10%. Regarding dust and safety issues, you can modify the belt by installing protective covers that fully enclose it, and supply nitrogen to maintain a positive pressure inside, thereby preventing oxygen from entering and ensuring safety.
One is to use pneumatic conveying, but the acetylene concentration issue must be taken into account； Second, pipeline machines are used, but they are prone to leakage, affecting the environment. Both of these conveying methods can transport over several kilometers.
UF chain conveyors are used for short distances, while pipeline pneumatic conveying is employed for distances of several kilometers
Pneumatic conveying should be the best method. But people are still worried about the issue of explosions; in fact, as long as proper safety measures are taken, transportation by pneumatic means is completely feasible. Method 1: Transport using nitrogen; since nitrogen is expensive, its reuse can be considered. Method 2: Transporting using air – it is possible to install online explosive gas detection devices; if an alarm is triggered, the system can switch to nitrogen for transportation.
Using a tubular belt conveyor would be better
The most scientific, safe, and reasonable method is to use a belt conveyor. It won’t cause spills; its main advantages are a long conveying distance and the ability to turn.
Air conveyor, is that possible? Don’t think that only PVC is conveyed by pneumatic transport; calcium carbide is also conveyed in this way. Is the flowability of calcium carbide slag comparable to that of PVC?