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ore color sorting machine
  • A technology  recovery recycling industrial silicon in silicon slag A technology recovery recycling industrial silicon in silicon slag Oct 15, 2022
    Industrial silicon production is based on silica as raw material and carbonaceous raw material as reducing agent, which is smelted by electric furnace. Among them, industrial silicon is mainly used as raw material for polysilicon, monocrystalline silicon, silicon alloy, and organic silicon, with applications in aerospace, new energy, high-purity semiconductor and other industries, and the demand is increasing year by year. Industrial silicon in the process of smelting refined silicon in the average refining 1 ton of silicon water produces about 100 kg of silicon slag, so the number of industrial silicon slag produced each year is huge, for a long time silicon slag is used to pave the road or as a waste pile, not only occupy a lot of land resources, but also bring a series of environmental problems. At the same time, industrial silicon slag contains more than 15% of monomeric silicon, which is not utilized, resulting in a waste of silicon resources and bringing great economic losses to enterprises. In addition, there is also heavy adulterated silicon material in silicon waste that has been mixed with impurities such as B, P, Ga, Al, etc. In order to enhance utilization, it is also necessary to sort out the available silicon.   Industrial Silicon Smelting   Currently. For industrial silicon slag and mixed silicon waste processing methods are mainly manual sorting, re-sorting process, electromagnetic induction melting or back to the furnace re-refining way, which manual sorting by crushing large silicon waste, from which large particles of industrial silicon for recycling, the overall sorting efficiency is low, after sorting there are more high content of industrial silicon can not be recycled; re-election process requires the silicon slag grinding to a few millimeters, the process is complex, and also waste a lot of water. Also wastes a lot of water, and the separation effect is relatively general; electromagnetic induction melting or furnace melting, because of high energy consumption and silicon slag viscosity, it is difficult to directly separate out.   The existing recycling process of industrial silicon have certain problems, but the application of the latest sorting technology of artificial intelligence sorting machine, in the sorting can replace the existing silicon slag sorting process, to provide a simple and efficient sorting method, and enhance the industrial silicon recycling rate in silicon slag. The silicon slag only need to crush, Use artificial intelligence machine sorting directly, in the silicon slag recovery of industrial silicon sorting precision, sorting effect, sorting efficiency, recovery rate, recovery costs are better than the existing silicon slag sorting process.   The main working principle is that the silicon slag is crushed and dissociated, and the difference in surface characteristics between the slag and industrial silicon is used to identify good and bad materials through photoelectric sorting technology,Optical sorting machine, and the good and bad materials are sorted out through the control system controlling the spray valve, so as to achieve the sorting separation of silicon slag and industrial silicon.     Before sorting   After sorting   At the same time, the artificial intelligence sorting machine has a great improvement in sorting compared with the ore color sorting machine, which can only judge good and bad materials based on color. In the silicon slag sorting, there is a coexistence of good and bad materials, small color differences, it can not identify the good and bad materials by color, artificial intelligence machine will not worry about this problem, through the identification of multi-dimensional characteristics of silicon slag,it establish the models, accurately identify materials with good sorting effect. So as to achieve the purpose of high-efficiency recycling of industrial silicon and increase the economic benefits of enterprises.   As a high-tech enterprise specializing in industrial ore sorting, Mingde Optoelectronics has mature technology accumulation for solving all kinds of industrial ore sorting problems and bulk ore sorting system, and the product application scope covers talc, fluorite, wollastonite, potassium feldspar, barite, quartzite, calcite, calcium carbonate, magnesite, lithium pyroxene, phosphate ore, gold ore, pebbles, quartz sand, coal gangue, vanadium ore and nearly 100 kinds of metal and non-metal. We have strong technical advantages in the field of ore sorting. The Preconcentration and discarding sorting machine will achieve the rapid accumulation of wealth.   Edited by Jacky 
  • How to remove iron from potassium feldspar and the beneficiation process and flow How to remove iron from potassium feldspar and the beneficiation process and flow Nov 02, 2022
    Potassium feldspar is also known as orthoclase, the color is usually red flesh red, yellowish white, in addition to orthoclase there are also perovskite and triclinic crystal system. Usually density in 2.54-2.57g/cm³, abrasive materials and other industrial sectors and the production of potash fertilizer with. Among them in the ceramic industry as embryo ingredients, glaze dosage accounted for 30%, the rest are mostly used in chemical, glass, glass fiber and other industries, with the development of China's social and economic development, the increasing demand, potassium feldspar application prospects are more promising. The main problem of domestic potassium feldspar at this stage, rich in resources, potassium feldspar is mostly symbiotic with quartz, but also with iron-bearing minerals, mica, clay minerals and rutile. In order to improve the industrial value of potassium feldspar, its beneficiation and removal of miscellaneous stones is essential, especially the domestic potassium feldspar contains excessive iron, iron removal is the key to purification.        Next, a brief description of how to remove potassium feldspar and beneficiation equipment process flow. Photoelectric Separation and Removal      Potassium feldspar photoelectric sorting and debris removal, mainly is the original potassium feldspar ore after coarse break or second break associated ore can be sorted and dissociated, the use of photoelectric sorting equipment pre-throw waste tailings, remove the potassium feldspar in the useless quartz, vein or can be separated from the material, so as to achieve the purpose of separation, compared with the traditional hand sorting process, the overall sorting efficiency is greatly improved. Magnetic Separation     Since iron minerals, black mica, tourmaline, etc. in potassium feldspar are weakly magnetic, they can be removed by strong magnetic separation process and equipment to achieve the purpose of separation. Removal of impurities by flotation     When potassium feldspar contains pyrite, mica, or garnet, tourmaline, hornblende and other forms of ferrite containing minerals, the flotation process is mostly used to remove impurities. The process flow of mineral potassium feldspar beneficiation equipment is as follows.    Crushing: Firstly, the raw ore is crushed by jaw crusher, and then sent by belt conveyor to cone crusher for secondary crushing;   Sorting: After the secondary crushing, the potassium feldspar particles are sent to the circular vibrating screen for sieving and transported to the ore color sorter or artificial intelligence ore sorter for sorting, and the waste stone is thrown away after crushing and dissociation;    Ball Mill: After the waste throwing, the concentrates enter the ball mill for ball milling, and the potassium feldspar powder after ball milling is sorted by spiral classifier;     Magnetic separation: The finely ground potassium feldspar powder enters the magnetic separator for magnetic separation, and the selected iron and mica materials are sorted out by strong magnetism according to the material condition.    Flotation: potassium feldspar through flotation, can be very good to enhance the effect, not only to remove iron, titanium, but also to separate out the quartz and other substances. Among them, according to the potassium feldspar companion does not understand, the use of pharmaceuticals will be different, the main agents are acid flotation, neutral flotation, alkaline flotation method. Dewatering and drying: Potassium feldspar concentrate after magnetic separation or flotation or composite sorting. Dehydration treatment by thickener, then into the dryer for rapid dewatering and drying, and finally the dried potassium feldspar powder is the final sorted potassium feldspar concentrate. Among them, the above process flow 4 and 5 because of the different iron content in potassium feldspar and the different forms of iron ore present in it, sometimes magnetic separation or flotation can be used for sorting, but some potassium feldspar iron ore content is high, and sometimes iron ore exists in potassium feldspar in the form of leaching, this kind of belongs to the difficult ore species, at this time will use the joint beneficiation process for sorting, such as magnetic separation - flotation method, reverse flotation - strong magnetic separation method, etc., at this time can be used Joint beneficiation process, such as magnetic separation - flotation method, reverse flotation - strong magnetic separation method, etc.   From the potassium feldspar beneficiation process, the equipment to be used are jaw crusher, cone crusher, ball mill, vibrating feeder, spiral classifier, ore color separator, artificial intelligence sorter, magnetic separator, flotation machine, dryer, vibrating screen, conveyor, etc. According to the existence of different forms of potassium feldspar, there will be some differences in equipment.    The above is the potassium feldspar sorting process, equipment and process flow, Anhui MINGDER is mainly specialized in ore sorting equipment research and development, production, sales in one of the photoelectric sorting high-tech enterprises, the main products are ore color sorting machine, artificial intelligence sorting machine, mineral sand sorting machine, X-ray intelligent sorting machine, not only use potassium feldspar sorting, in all kinds of metal non-metallic ore are used, covering fluorite, talc, silica The scope of coverage includes fluorite, talc, silica, quartzite, phosphate ore, gold ore, high crystalline silicon, coal and coal gangue, etc.      

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