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我厂一高炉自实现烧结矿槽下过筛以来,一般仅能筛除粉矿5～8%.入炉料中小于5毫米的部分仍高达15～18%,效果不够理想.认为主要问题是:1、振动筛压料启动,筛上料层过厚;2、料流不能控制,闸门开口小,易被大块烧结矿堵塞,开口大,造成料流急,料层厚.因此,想提高筛分效率,必须减薄筛上料层厚度.为此,我们设计了一种可调式振动给料器,与自定中心振动筛相结合.烧结矿过筛,先经过漏斗闸门,自流到振动给料器上而形成小于40°的休止角.上料时,由电气控制先启动振动筛,后启动振动给料器.烧结矿则从给料器均匀地卸到己经启动的振动筛上.振动筛上料层的厚度,可由调整振动
Since the blast furnace in our factory has been sifting under the sinter tank, it can only screen 5 to 8% of the powder ore in general, and the part which is less than 5 mm in the charge is still as high as 15 to 18% with unsatisfactory effect, and the main problems are: 1, the vibrating screen pressure start, the sieve material layer is too thick; 2, the flow can not be controlled, the gate opening is small, easily blocked by large sintered ore, opening large, causing the flow of emergency, thick material layer. For the screening efficiency, the thickness of the screen material must be thinned.To this end, we have designed an adjustable vibrating feeder in combination with a self-centering shaker that first passes through the funnel gate and flows self-flowing to vibration On the feeder to form an angle of repose of less than 40. When charged, the shaker is activated by electrical control and the vibratory feeder is started, and the sinter is unloaded evenly from the feeder to the activated shaker The thickness of vibrating screen material layer can be adjusted by vibration