40results about How to "High iron removal rate" patented technology

The invention discloses a device and a process of removing iron and silicon phases in a primary aluminum-silicon alloy by means of a one-step method. The process comprises the following steps: adopting a metal element manganese as an iron removing agent under the action of an alternating electromagnetic field; mixing the iron removing agent with a primary aluminum-silicon alloy raw material uniformly; heating and melting the mixture, wherein the silicon phase and the iron-enriched phase are solidified and enriched in the bottom under the joint action of a magnetic field force and temperature effect after cooling; pouring the melt in the upper portion; carrying out cooling and solidification on the melt to obtain a casting aluminum-silicon alloy meting the industrial standards; and finally,re-melting the primary silicon phase and the impure iron phase in the bottom to obtain a bottom alloy melt. Compared with a conventional natural precipitation method, the iron removal rate which is only 60% or above, the process disclosed by the invention is simple and rapid in flow of preparing the casting aluminum-silicon alloy, energy-saving and environment-friendly and low in production cost;the iron removal rate reaches up to 92%; and the silicon content of the obtained product is as small as 13% or below and the iron content of the obtained product is as small as 0.39% or below.

The invention discloses a regenerated rubber powder production device. The regenerated rubber powder production device is characterized in that tyre blocks formed through rough crushing of a tyre are crushed into coarse particles through a rubber coarse crushing pulverizer firstly, and the coarse particles are subjected to magnetic separation. Compared with the method that rubber is crushed into powder are then subjected to magnetic separation, a mode adopted by the device has the advantages that a steel wire is not fully smashed into iron powder, the efficiency of magnetic separation is high, and the iron removing ratio is high; before the coarse particles are delivered to a rubber powder crushing pulverizer, the coarse particles are subjected to the magnetic separation through an all-magnetic roller, so that iron-containing rubber particles are completely removed, and the iron-containing rubber can be crushed by the rubber coarse crushing pulverizer, therefore, through two-time coarse crushing pulverizer by the all-magnetic roller, the removing ratio of steel wire can reach above 99%, consequently, the content of iron powder is finished rubber powder is greatly reduced, and the production efficiency is high; an elastic part of a second moving sieve is replaced by an oscillating structure which is composed of an oscillating arm and a door-shaped frame, so that the screening efficiency is high, and the service life is greatly prolonged.