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DaLian Timing Optoelectronic Technology Co.,LTD.

Dalian Taiming economic and Trade Co., Ltd

Tel:(86)0411-87625211,18641138876

Q  Q:139964658

Mailbox:timing_china@126.com

URL:en.timing-china.com

Address: NO.77-46,GANGXING STREET DALIAN ECONOMIC AND TECHNOLOGICAL DEVELOPMENT ZONE,LIAONING PROVINCE

Summary of purification and impurity removal methods of quartz sand

date:2019-07-05 00:00:00 Author: Click:

Quartz sand, also known as silica sand, is a common non-metallic mineral raw material, which has a wide range of applications.

Quartz sand purification is a highly difficult separation technology to remove a small amount or trace impurities in quartz sand and obtain refined quartz sand or high-purity quartz sand (such as electronic grade products). In recent years, the research on quartz sand purification technology at home and abroad mainly focuses on the following aspects:

01. Water washing and graded desliming:

As a pre-treatment method before ore selection, water washing and classification desliming have been applied earlier and widely, but their removal effect for thin film iron and cohesive impurity minerals existing on the surface of quartz sand is not significant.

02. Scrubbing:

At present, there are mainly two methods: stick friction washing and mechanical scrubbing. For some quartz placers, the mechanical scrubbing and erasing effect is not ideal, so the rod scrubbing process is widely used and relatively mature in China.

03. Magnetic separation:

The application of magnetic separation process can remove hematite, limonite, biotite and other weakly magnetic impurities including intergrowth particles to the maximum extent.

04. Flotation:

The flotation method is used to remove non-magnetic associated impurity minerals such as feldspar and mica from quartz sand.

05. Acid leaching:

Acid leaching takes advantage of the fact that quartz is insoluble in acid (except HF) and other impurity minerals can be dissolved in acid solution, so as to further purify quartz.

06. Microbial leaching:

It is a newly developed technology to remove iron from quartz sand by microbial leaching. At present, microbial iron removal is at the stage of laboratory research, and further experimental research is needed for large-scale industrial production.

07. Color selection of color sorter:

The last step is also the most critical step to improve the value of quartz sand. When quartz sand is purified by various methods, there are still many impurities in the sand, and quartz sand products have high requirements for the purity of quartz sand, what method can greatly improve the quality of quartz sand?

At present, the ore color sorter has been widely used in the sorting of quartz sand. A good color sorter can indeed select the sand, and mining enterprises can obtain considerable economic benefits. But why do some mine owners buy quartz sand color sorters that do not meet the requirements? Before purchasing color sorters, we must do a good job in the preliminary market research. First, we must understand several important systems of color sorters. Color sorters can be said to be a kind of "robot". Color sorters are mainly composed of feeding system, optical detection system, signal processing system and separation system. Its performance evaluation indexes mainly include the following points: processing capacity, color selection accuracy, belt out ratio and cleaning ratio. The key is whether the software and hardware that can determine the color selection index of the color sorter are powerful. In order to make the color sorter have an efficient and stable color selection effect, the combination of software and hardware must be considered globally. Which brand of color sorter can achieve efficient sand selection and effectively remove impurities in quartz sand, and can really achieve the goal of further purification of quartz sand?

石英砂色选机


The development of quartz sand color sorter of Dalian Taiyiming Optoelectronic Technology Co., Ltd. can be said to be the first. With the arrival of the 5G era, the intelligent development is particularly prominent. As an independent brand, Timing quartz sand color sorter has already entered the high-end color selection, which can be said to be the leader in the industry. Because of its ideal sand selection effect, high cleaning rate, high output, time-saving and energy-saving, excellent equipment quality and other characteristics, it has a market share of up to 80% in China's quartz sand market. Such a large market share can explain the reliability of its products.

石英砂色选机


Taiyiming quartz sand color sorter is based on quality. The software is the soul of the color sorter. The software of Taiyiming color sorter is imported from South Korea with original packaging, which can complete the task efficiently and accurately. The efficient and stable system is indeed overbearing, but it also requires strong hardware support to further develop the advantages of the high-end brand. The hardware part adopts international famous brands:

1. Specialized Japanese NIKON lens can identify 0.1mm tiny impurities;

2. German FESTO high-frequency valve with action frequency up to 1000Hz/s;

3. In order to ensure the intake quality of high-frequency solenoid valve, German FESTO filter is used;

4. Taiwan Mingwei Power Supply;

5. Schneider control unit, France.

The high hardware and software configuration of Taiyiming quartz sand color sorter can be described as a comprehensive explanation of high-end color sorter, and the perfect combination of hardware and software has proved the hegemony of Timing's superstar quartz sand color sorter. In the 5G era, we will see more excellent Taiyiming color sorter leading the way, and the future is promising!


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DaLian Timing Optoelectronic Technology Co.,LTD.

Tel:(86)0411-87625211,18641138876

Address: NO.77-46,GANGXING STREET DALIAN ECONOMIC AND TECHNOLOGICAL DEVELOPMENT ZONE,LIAONING PROVINCE

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