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Coal preparation spiral chute
date:2023-07-20     source:huang    click:

Coal selection spiral chute 1. Explanation: The chute selection includes an inclined flow separation process. When the mortar is fed to a partially inclined chute or slope, with the assistance of water flow, the mineral particle group becomes loose and layered. The upper layer of light mineral materials is quickly discharged from the outside of the groove, while the lower layer of minerals with high specific gravity are retained inside the groove or slowly discharged from the lower part. After being distinguished and connected, concentrate and tailings can be obtained. Fiberglass spiral chutes are equipment for mining and beneficiation, making them particularly ideal for mineral mining along coasts, rivers, beaches, and streams. The equipment has the characteristics of appropriate structure, simple installation, small footprint, simple operation, stable beneficiation, clear screening of minerals, high yield, high efficiency, high beneficiation concentration ratio, high recovery probability, and stable operation. There are also advantages such as small weight, moisture resistance, rust resistance, corrosion resistance, and strong adaptability to fluctuations in ore feed volume, concentration, particle size, and grade. 2、 Using a method to set up a spiral concentrator, align it with the vertical line, use an iron frame or wood to fix it in a suitable position, and use a sand pump to transport the ore to the two feeding ports on the spiral head. Add supplementary water, adjust the concentration of the ore slurry, and the ore slurry will naturally swirl from top to bottom. In the flow rate of the inclined plane of the rotation, an inertial centrifugal force will occur, which will cause differences in the gravity, particle size, and shape of the sand ore, Through the influence of the gravity or centrifugal force of the swirling flow, the sand ore is separated, and the selected ore flows into the concentrate hopper and is piped out. The tailings flow into the tailings hopper and are piped to the sand ore pool, and then discharged by a slurry pump, completing the entire beneficiation process. Coal preparation spiral chute  选煤螺旋溜槽 III. Characteristics or highlights 1. Large scale and large production. In principle, today's mineral material processing needs to create revenue by scale effect. 2. Fine granulation, the treatment of fine and micro particle minerals is extremely the treatment of ore materials with particle size of -0.047mm. The original equipment can basically ensure the recovery of+0.047mm Granularity. 3. With the development of Hydraulics, two-phase flow, machine vibration, etc., the GRP spiral chute has progressed from simply using gravity and water blocking force to the level of composite use of centrifugal force, equipment vibration force, magnetic separation force, etc. By using a composite force field, the enrichment of useful minerals and the separation of fine and fine particles can be enhanced, thereby increasing the recovery rate of mineral materials. 4. With energy saving and environmental protection as the basic starting point, the land area and space occupied should be small, and the water and electricity consumption should be small. 5. The operation is simple and flexible, the selection process is stable, the structure is simple, and it is convenient for maintenance management.  选煤螺旋溜槽 Coal Preparation Spiral Chute 4. Structural Composition: The spiral concentrator consists of six parts: a feeding homogenizer, a feeding trough, a spiral trough, an equipment selection trough, a product gathering hopper, and a trough bracket (including a cross or triangular frame). The spiral groove formed by connecting rotating discs is a key component. The spiral plate is made of fiberglass (fiberglass reinforced coal gangue) and connected together through screws. The sorting surface of the rotating groove has a pre designed durable wear-resistant layer. It has the advantages of lightweight, sturdy, durable, and durable consumer goods that are not easily damaged. A multi tube feeding homogenizer is installed above the rotating groove to sort minerals equally, making it easy to control. The concentrator does not need to be restricted from being placed on the cross (or tripod) of the support table. The evenly distributed slurry passes through the feeding chute installed at the head end of the spiral groove and slowly feeds onto the rotating groove surface for sorting. The tail of the spiral groove is equipped with a valve type new product acquisition groove, which allows the sorting equipment to be divided into three types (or four types) of new products along the radial direction according to grade. To adjust the orientation of the valve block and change the width of each new product, it is necessary to cut it off. The new equipment gathering bucket is a concentric annular tube that differentially collects and leads selected multi-directional mineral flows. The transverse surface of the fiberglass chute and the slope of the curve change greatly to adapt to the selection of fine-grained materials. Coal selection spiral chute 5. The use of spiral chutes in the field is suitable for processing 0.6-0.03 millimeters or vein ore and this sand ore, but high mud content is unfavorable for separation. Currently, it has been widely used for processing iron ore, tungsten, tin placer, tantalum niobium ore, bay and riverbank placer or placer gold, and so on.  选煤螺旋溜槽 coal preparation spiral chute