1results about How to "Change track" patented technology

This utility model discloses an improved rotary kiln for efficient reduction of iron-containing waste slag. It includes a feed hopper (1), a feed screw conveyor (2), a flue hood (3), a kiln body (4), a kiln body support roller device (5), a kiln body transmission device (6), a kiln body baffle roller device (7), a discharge end sealing cover (8), a kiln inner wall insulation layer (9), a heating spray gun (10), and a discharge screw conveyor (11). Based on the characteristics of the roasting raw materials and the process characteristics of high-temperature reduction roasting, the feed and discharge ends of a conventional rotary kiln are modified to be airtight. During roasting, a sealed space is formed inside the kiln. The kiln body insulation layer is constructed with a spiral-shaped refractory brick layer to increase the reducing concentration inside the kiln and the dispersion of materials during movement, achieving efficient reduction. After the application of this improved rotary kiln, low-cost, high-efficiency reduction roasting is achieved.