1. Introduction to DLS vertical ring high gradient magnetic separator
DLS vertical ring high gradient magnetic separator is a new type of high gradient magnetic separator developed by Hunan Yueyang Hercules Electromagnetic Machinery Co., Ltd. combined with the characteristics of domestic and foreign strong magnetic separators. It is mainly composed of pulsating mechanism, excitation magnetic circle and iron. yoke, and various swivel ore bucket, bucket composition, it fibrous magnetic stainless steel (e.g., a metal or stainless steel wool calendering, steel rod) as the poly magnetic media, a magnetic field gradient which thus corresponds to a conventional separator 10 to 100 times, the volume of the medium only accounts for 5 to 10% of the magnetic field space, which greatly improves the processing capacity of the magnetic separator. It is the use of a magnetic force, the fluid force pulsating beneficiation integrated force field and gravity, applies to weakly magnetic minerals (e.g., hematite, limonite, siderite, chromite, wolframite, tantalum and niobium ore, red mud and various manganese ore), the fine fraction ferromagnetic minerals (magnetite, maghemite, magnetite, titanium) and non-metallic mineral beneficiation (e.g. quartz, feldspar, mullite, nepheline, fluorite, Purification of sillimanite , spodumene , kaolin, etc. and treatment of water. It has the following characteristics:
1. Sorting ring vertical rotation, recoil magnetic mine. The lower part of the rotating ring is beneficiated, and the upper part is washed with magnetic products The direction of the magnetic product is opposite to that of the ore feeding. The coarse particles can be washed out without passing through the magnetic medium, thus effectively preventing the blockage of the magnetic medium, and fundamentally solving the flat ring strong magnetic magnetic separator and the flat ring high gradient magnetic The selection machine is easy to block this worldwide technical problem.
2. The background field is high, and the background field strength of the DLS vertical ring high gradient magnetic separator can exceed 2400 GS, which is still the highest in the domestic constant magnetic separator, so especially for the removal and removal of non-metallic minerals. The biotite aspect has a unique effect.
Second, the resource overview
Feldspar chemical composition SiO 2 Al 2 O 3 Fe 2 O 3 K 2 O Na 2 O
The most common mineral in the earth's crust is feldspar, which is common even on the moon and in meteorites. In the depth of 15 kilometers underground, the total weight of the crust occupied by feldspar has reached 60%. Feldspar is the main component of igneous rocks and is also common in metamorphic and sedimentary rocks. Feldspar containing a calcium, sodium, potassium aluminum silicate minerals, which there are many, such as albite, anorthite, celsian, ice barium feldspar, feldspar, orthoclase, Through the feldspar and so on. They all have a glass luster, a variety of colors, colorless, white, yellow, pink, green, gray, black and so on. Some are transparent and some are translucent. The feldspar itself should be colorless and transparent, and it is colored or not completely transparent because it contains other impurities. Some are in the form of blocks, some are plate-shaped, some are column-shaped or needle-shaped, and so on. Generally, feldspars present in igneous rocks and metamorphic rocks are very small, only 0.1 to 10 mm, up to 5 to 10 cm in porphyry, and up to several tens of meters in pegmatite. Feldspar has a wide range of industrial uses, mainly in the manufacture of potash, ceramics and glass raw materials.
The hardness of feldspar fluctuates from 6 to 6.5, the specific gravity fluctuates from 2 to 2.5, is brittle, has high compressive strength, and has strong chemical stability to acid. The color of potassium feldspar is mostly flesh red, and it is also gray and white brown. Sodium feldspar is white, gray and light yellow, and anorthite is white or light gray.
Third, small trials
Sample supply unit: Hunan Pingjiang Zhenxing Changshi Powder Co., Ltd.
(1) Test procedure:
Test procedure
(2) Test results
Test 1 | Grinding fineness | Raw ore Fe 2 O 3 | Concentrate Fe 2 O 3 | Raw ore whiteness | Concentrate whiteness |
-40 mesh accounts for 80% | 1.47% | 0.85% | 35.8 | 57.9 | |
Test 2 | Grinding fineness | Raw ore Fe 2 O 3 | Concentrate Fe 2 O 3 | Raw ore whiteness | Concentrate whiteness |
-100 mesh accounts for 80% | 3.47% | 0.39% | 35.8 | 64.9 | |
Trial 3 | Grinding fineness | Raw ore Fe 2 O 3 | Concentrate Fe 2 O 3 | Raw ore whiteness | Concentrate whiteness |
-250 mesh accounts for 90% | 3.47% | 0.09% | 35.8 | 87.8 |
Fourth, industrial applications
DLS high gradient magnetic separators are widely used in the demineralization and removal of mica powder of feldspar powder in all parts of the country (such as Foshan, Guangdong, Heyuan, Guangdong, Pingjiang, Hunan). The current operation results are very good.
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