Development of carbon adsorption process - linear screen
2020-11-04 16:23Introduction：Development of carbon adsorption process - linear screen All carbonin pulpplants have a certain amount of oversize particles, including wood fiber and coarse sand.As mentioned above, these inclusions can adversely affect activated carbon a
Development of carbon adsorption process - linear screen
All carbon in pulp plants have a certain amount of oversize particles, including wood fiber and coarse sand.As mentioned above, these inclusions can adversely affect activated carbon adsorption, flow smoothness, desorption operations and carbon transport.At present, the equipment for chip removal in carbon in pulp plant is mainly vibrating screen.The investigation shows that only about 53% of the chip removal rate can be achieved by using 3 vibrating screens to remove the chip in series. All remaining wood fibers enter the carbon adsorption system, which brings many problems to the carbon in pulp plant.
This screen has the following advantages:
1. No vibration, support structure, small weight;2. Low noise;3. Low power consumption, about 20% of the vibrating screen;4. Low maintenance cost;5. The feeding box, unloading chute and chassis constitute an integral structure;6. Long effective working hours, over 70%;7. No calcium accumulation on the moving screen cloth.
The linear screen can be used to remove debris from slurry before leaching. It is also ideal to use as a safety screen .The RM3 plant of the Rand Gold Mine in South Africa installed a 6m2 linear screen instead of 6 sets Derrick shakers, enabling the carbon fragment larger than 0.6mm to be recovered from the tailings.The working life of the screen cloth is over 140 days (about 1.5 million tons of ore treated).Replace the screen cloth as the diameter of the screen cloth is reduced by 50% due to wear.The cost of the cloth is one-third of the vibrating screen, and the maintenance cost is lower than the vibrating screen.
When regenerated, the wood fiber mixed with the carbon produces carbon ash.The linear sieve can be used to treat the regenerated carbon so as to remove the carbon grey and fine carbon effectively.
The linear screen can also be used in the grinding system to return the coarse grain in the overflow of the cyclone to the grinder.The linear screen can also be used to classify mineral products more efficiently than hydrocyclone.
