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Coal bunker spiral chute 1. Introduce the beneficiation chute, including the inclined flow separation process. Mineral mortar is applied to a partially inclined chute or inclined surface. With the assistance of flowing water, the mineral particle group is not tightly fastened and layered. The upper part of the light mineral material quickly flows out of the groove, while the lower part of the heavy mineral material stagnates in the inner groove or slowly flows out from the lower part. After distinguishing and connecting, the concentrate and tailings can be obtained. Spiral chutes are machinery for mining and beneficiation, especially ideal for sand mining in coastal areas, riverbanks, sandbanks, and streams. The product also has the characteristics of reasonable structure, simple installation, small land occupation, simple operation, stable beneficiation, clear screening of ore, large production capacity, high efficiency, high beneficiation enrichment ratio, high recovery probability, and stable operation. It has the advantages of light weight, moisture prevention, rust prevention, strong corrosion resistance, and strong applicability to feed volume and density, Granularity, and grade fluctuation. 2、 Production principle: The spiral chute screening machine is freely placed on the cross (or tripod) on the support table. The uniform mortar is slowly fed to the surface of the rotating groove through the feeding groove installed at the beginning of the spiral groove, and the selection is carried out. The tail end is equipped with a valve block type equipment cutting groove, allowing the sorted products to be divided into three types (or four types) according to grade along the radial direction. Change the selection width of each equipment by adjusting the orientation of the valve block. The product gathering bucket is a concentric circular tube that converges and induces the obtained multi head ore flow. The cross-section of the fiberglass spiral chute and the slope of the curve change, which is very suitable for the separation of fine mineral materials. Coal bunker spiral chute III. Features This equipment is suitable for separating iron ore, Ilmenite, Chromite, pyrite, zircon sand, Rutile, monazite, phosphate ore, tungsten ore, tin, tantalum niobium ore, tantalum niobium ore or other nonferrous gold, rare ore metal and nonferrous metal mineral bodies with specific gravity difference from fine materials with Granularity of 0.3-0.02mm. This equipment has the advantages of stable sorting steps, easy operation, wide range of allowable changes in feed density, high enrichment ratio, high recycling rate, small area occupation, low water consumption, simple structure, no power, strong processing ability, simple installation, easy operation, small investment, and quick effectiveness. The spiral chute of the coal bunker is composed of six parts: a feeding distributor, a feeding groove, a spiral groove, a product selection groove, an equipment gathering hopper, and a groove bracket (including a cross or triangular frame). The rotating groove connected by spiral plates is a key component. The rotating plate is made of fiberglass (fiberglass reinforced coal gangue) and is bolted together, with a pre made durable and wear-resistant layer on the selected surface of the spiral groove. It has the advantages of lightweight, sturdy, and long-lasting consumables. The head of the rotating groove is equipped with a multi tube ore feeder to evenly separate minerals, making it easy to control. The sorting machine is not limited to stacking on the cross (or tripod) of the support table. Uniform mineral mortar is slowly fed onto the rotating groove surface through the feeding chute at the end of the spiral groove head, and sorting is carried out. The bottom of the spiral groove is installed in a valve block type new product cutting groove, allowing other new equipment to be selected and classified into three types (or four types) of new equipment along the radial direction according to grade. Change the acquisition width of each new product by adjusting the orientation of the valve block. The new product gathering bucket is a concentric circular tube that gathers and leads out the selected multi head ore flow. The lateral plane of the spiral concentrator, with a change in the slope of the curve, is extremely suitable for the separation of fine particle materials. The application scope of spiral concentrator is to separate fine grained iron ore, Ilmenite, Chromite, pyrite, tin ore, tantalum niobium ore, placer gold ore, coal mine, monazite ore, Rutile ore, zircon, rare earth ore and other metal and nonferrous metal minerals with sufficient density weight difference. Coal bunker spiral chute