Industry News

How to turn waste into treasure in mining production line

Slags, ore tailings, industrial waste, waste water are common and usual in mining production industry. At present, the government advocates 'environmental protection', with the policy, many mining machinery industry try all ways to take good use of the industrial waste. Let's make an analysis.

China may be the main ferrous metallurgy industry, solid waste, in 2005 made 349 million tons of metal slag, smelting slag produced 146.19 million tons, (ones about 50 million a ton of steel slag, blast furnace slag around 9000 tons), comprehensive consumption of 128.48 million tons, accumulated in the past having a total storage capacity of two million tons, a spot of 3 acres, the open storage with the smelting slag dumps land seizures, pollution, poison the soil, water and air, seriously impact the ecological environment, producing significant economic loss or potential and waste of resources. Approximately a ton smelting waste stockpiles of 14.25 billion yuan total economic loss, economic lack of 2.85 billion yuan on a yearly basis. Therefore, the smelting slag of harmless, treatment resources as well as the arena of China attaches great importance to the focus countries, we promote the recycling economy is usually a central part. Granulated blast furnace slag utilized for fine grinding and coarse grinding, respectively, while in the form used, is the using the most appropriate metal slag process.

We can see the slat recovery from copper slag recycling, iron slag concrete and steel slag production process.

Iron Slag Concrete

Clinker, iron slag concrete or some other materials mixed with a grinding circuit of ball mill , qualified powder to the clinker, iron slag concrete powder library. Synthesis inside cement plant, as outlined by market demand and national quality standards, the slag and clinker, slag powder, measured in proportion, mixing, and homogenization, the preparation of several intensity levels of slag cement or composite cement.

Steel Slag Production Process

Steel slag production process in several forms, can yield high thin tube mill (especially Rolling Mill) a open process, it is usually a regular ball mill, high quality separator a closed process; generally is a closed vertical mill process can be in addition to roller press and ball mill grinding process and so forth. These processes share is: need to be of high slag grinding into fine powder (collectively described: slag powder), that slag particles within the 80% 50m, specific surface 380m2/kg, which, 10m ultra-fine powder around included 30 to 40%.

Copper Slag Recycling

Raymond grinding mill which has a reasonable and reliable design for copper slag recycling, with advanced technological process, couple of drying, grinding, as well as powder especially in the massive grinding process, to totally meet customer demand, the primary technical, economic indicators have reached international advanced level. Raymond mill for copper slag processing may be used to give you the heat stove, drying and grinding to achieve the procedure for slag, slag qualified library in the slag. Save slag dryer, simplifying the assembly process.