Artifical sand-making technology has developed a long time in China. However, to make sand according to production requirements as well as being environmental friendly has for many years been a technological problem in sand-making field.
There are two methods for traditional sand-making, dry technology and wet technology. However, there are two vital problems plaguing artificial sand-making in China, one is the problem of environment protection, the second one is fineness of the end product., proportion of stone powder and difficulties in controlling humidity, which can't be solved by adopting the above mentioned traditional methods.
By adopting the dry-type sand-making technology, the problem of high stone powder proportion. However, dust in production process is heavy, which will cause serious environmental pollution. Only colosed production technology can solve the problem of heavy dust spread. While there is too much stone powder, powder dust whose size is less than 0.08mm can not be seperated from stone powder, which will affect quality of cement and cause high construction cost. By adopting the wet-type sand-making technology, production capacity of sand is quite low, there will be long dehydration period, hopper of large capacity should be needed for dehydration. There will be problems of severe loss of stone powder, difficulties in collection, low proportion of stone powder in ready-made sand. Waste water will cause severe pollution to the environment with high water expense, which will contribute less to recycling of resources.
To solove disadvantages existing in traditional tehcnology, sand-making experts have made continuous efforts. Environmental friendly cemi-dry sand-making technology has achieve consensus by experts group and been adpoted in production, which can recycle wastes as well as saving cost and create objective economic benefits.
As the professional manufacturer of complete sets of mining machinery, such as Sand washing plant,cement mill,Primary crushers,Bucket sand washer, Henan Hongxing is always doing the best in products and service.