金矿石选金用粗粒溜槽的构造和富集过程是怎样的?
选金用粗粒溜槽作为低品位砂金矿的粗选设备,具有结构简单、投资少、无药剂污染等优点。但其劳动强度较大,回收率较低,约为50 %一60 %。这种粗粒溜槽的构造如图3 一11 所示,槽体为钢板或木板制成的长槽,长度在4m以上,宽为0.4~0.6m,高为0.3~0.5m 。在槽底有钢制或木制横向或网格状挡板,图3 - 11 所示槽底每隔0.4m设有角钢(5Ommx 50mm )制作的横向挡板。有的还在挡板下面铺置一层粗糙铺面,如苇席、毛毯、毛毡、长毛绒布等。槽的安装坡度一般为5°~8°矿浆自高端给入,在槽内作快速紊流流动,旋涡的回转运动不断地将密度大的金粒及其他重矿物转送到底层,形成重矿物层并被挡板挡住留在槽内;上层轻矿物则被水流推动,排出槽外。经过一个时期槽底精矿较多时,停止给矿,加水清洗,再去掉档板进行冲洗,最后,冲出槽底精矿。有铺面的要对铺面进行清洗,洗出物并入精矿。
The gold ore Xuanjin constructed by coarse sluice and enrichment process?
选金用粗粒溜槽作为低品位砂金矿的粗选设备,具有结构简单、投资少、无药剂污染等优点。但其劳动强度较大,回收率较低,约为50 %一60 %。这种粗粒溜槽的构造如图3 一11 所示,槽体为钢板或木板制成的长槽,长度在4m以上,宽为0.4~0.6m,高为0.3~0.5m 。在槽底有钢制或木制横向或网格状挡板,图3 - 11 所示槽底每隔0.4m设有角钢(5Ommx 50mm )制作的横向挡板。有的还在挡板下面铺置一层粗糙铺面,如苇席、毛毯、毛毡、长毛绒布等。槽的安装坡度一般为5°~8°矿浆自高端给入,在槽内作快速紊流流动,旋涡的回转运动不断地将密度大的金粒及其他重矿物转送到底层,形成重矿物层并被挡板挡住留在槽内;上层轻矿物则被水流推动,排出槽外。经过一个时期槽底精矿较多时,停止给矿,加水清洗,再去掉档板进行冲洗,最后,冲出槽底精矿。有铺面的要对铺面进行清洗,洗出物并入精矿。
Choose gold with coarse sluice as low - grade gold sand roughing equipment and has the advantage of simple structure, less investment, no chemical pollution etc.. But its labor intensity is big, the recovery rate is low, about 60% a 50%. This coarse-grained chute structure as shown in Figure 3 to 11 shows, the long groove of the groove body is made of steel or wood, length in more than 4m, width is 0.4~0.6m, high for 0.3~0.5m. At the bottom of the groove steel or wooden horizontal or grid baffle, figure 3 - 11 shown at the bottom of the groove every 0.4m with angle (5Ommx 50mm) produced by transverse baffle. The following have laid a layer of baffle rough pavement, such as reed mat, blankets, blankets, plush cloth etc.. Groove installation slope is generally 5 DEG to 8 DEG pulp from the high-end to enter, for rapid turbulent flow in the groove, the rotary motion of the vortex has the density of gold particles and other heavy minerals transfer to the bottom layer, the formation of heavy mineral layer and is blocked by the baffle plate in the groove of the inner; the upper light mineral is water flow to drive, the discharge groove. After a period at the bottom of the groove concentrate more, the cessation of mining, water cleaning, to remove baffle flushing. Finally, out of the groove bottom ore. A pavement to be cleaned on the pavement, eluate into concentrate.
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