A kind of screening method and system of tungsten concentrate
A screening method and tungsten concentrate technology, applied in the field of tungsten concentrate screening methods and systems, can solve problems such as waste of tungsten trioxide, and achieve the effects of avoiding waste, saving mining and improving ore grade.
Active Publication Date: 2017-10-10
赣州江钨钨合金有限公司
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Problems solved by technology
[0003] However, the existing technology generally screens tungsten ore through crushing, ball milling, gravity separation, flotation, electric separation and other processes. , but the content of tungsten trioxide, the main component of the tungsten concentrate produced by the existing technology, only reaches 65%, and a large amount of tungsten trioxide is still wasted, while still containing a certain amount of impurities
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[0037] Below in conjunction with accompanying drawing, the present invention is described in detail.
[0038] In order to make the object, technical solution and advantages of the invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0039] Such as figure 1 Shown, a kind of tungsten concentrate screening method is characterized in that comprising the following steps:
[0040] Step 1: pre-screening;
[0041] Step 1 includes three steps of feeding, first screening and first crushing. The ore enters the screening through the ore inlet, and the first screening is completed after passing through the screen. After the first screening, the ore larger than 3mm enters the crusher. After the first crushing, it returns to screen one, and the ...
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The invention discloses a screening method and system for tungsten concentrate, and belongs to the field of concentrate screening. According to the screening method and system for tungsten concentrate, a prescreening line is included, the prescreening line is connected with a screening line for 3-0.83 m, a screening line for 0.83-0.2 mm and a screening line for 0.2-0 mm which are connected in parallel, and a vibrating screen is arranged at the joint of the prescreening line, the screening line for 3-0.83 m, the screening line for 0.83-0.2 mm and the screening line for 0.2-0 mm. The screening system for tungsten concentrate has the advantages that the tungsten concentrate with the low impurity content and high grade can be efficiently screened out, tungsten trioxide of raw ore is effectively utilized, and waste of tungsten trioxide is reduced, and the four steps of prescreening, screening for 3-0.83 mm ore, screening of 0.83-0.2 mm ore and screening of 0.2-0 mm ore are included. The screening method and system for tungsten concentrate have the advantages that the tungsten concentrate with the low impurity content and high grade can be efficiently screened out, the tungsten trioxide of raw ore is effectively utilized, and waste of the tungsten trioxide is reduced.
Description
technical field [0001] The invention relates to a concentrate screening method and system, in particular to a tungsten concentrate screening method and system. Background technique [0002] Tungsten concentrate is the main raw material for the production of tungsten compounds such as ferrotungsten, sodium tungstate, ammonium paratungstate (APT), ammonium metatungstate (AMT), and its downstream products mainly include tungsten trioxide, blue tungsten oxide, tungsten powder, tungsten carbide, Carbide, tungsten steel, tungsten bar, tungsten wire, etc. Since tungsten concentrates account for a large proportion of tungsten production costs, it is of great economic significance to increase the decomposition rate and tungsten recovery rate of tungsten concentrates or tungsten raw materials. [0003] However, the existing technology generally screens tungsten ore through crushing, ball milling, gravity separation, flotation, electric separation and other processes. , but the conte...
Claims
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IPC IPC(8): B02C19/00B02C23/14B02C23/16B03C1/30
CPCB02C19/00B02C23/14B02C23/16B02C2023/165B03C1/30
Inventor 张荣斌
Owner 赣州江钨钨合金有限公司