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Seaside quartz sand is a common building material with extensive applications in fields such as architecture and road construction. However, due to the inclusion of many impurities in its original ore, its quality is uneven, which affects its subsequent use effect. Therefore, the re selection of Haibin quartz sand is particularly important. This article will introduce several common methods for beach quartz sand gravity separation.
1、 Physical reselection method
The physical gravity separation method is a relatively simple and common seaside quartz sand gravity separation method. The principle is to use differences in physical properties to separate quartz sand from impurities. The operating steps of the physical reselection method are as follows:
1. Screening of quartz sand: Firstly, the original quartz sand is screened through a sieve to remove large particle impurities.
2. Washing: Put the screened quartz sand into the sand washing machine for washing. The function of a sand washing machine is to use water flow to wash away impurities on the surface of quartz sand.
3. Gravity sorting: Place the washed quartz sand into the sorting machine and use gravity to separate the quartz sand from impurities. The principle of the sorting machine is to use the difference in gravity to separate heavy quartz sand from light impurities.
2、 Chemical reselection method
Chemical reselection method is a reselection method that utilizes differences in chemical properties for separation. The operation steps are as follows:
1. Pickling: Place the original quartz sand into the pickling tank for pickling. The function of acid washing is to dissolve impurities on the surface of quartz sand.
2. Alkali washing: Place the acid washed quartz sand into an alkaline washing tank for alkaline washing. The function of alkaline washing is to neutralize the remaining acidic substances during the acid washing process, making the surface of quartz sand smoother.
3. Washing: Wash the alkali washed quartz sand to remove impurities.
III. Air flow separation method
The airflow separation method is a gravity separation method that utilizes airflow for separation. The operation steps are as follows:
1. Screening: Firstly, the original quartz sand is screened through a sieve to remove large particulate impurities.
2. Air flow sorting: Put the screened quartz sand into the air flow sorting machine, and use the air flow to separate the light impurities from it. The principle of an air flow sorting machine is to use the speed difference of the air flow to separate heavy quartz sand from light impurities.
In summary, there are various methods for beach quartz sand gravity separation, including physical gravity separation, chemical gravity separation, and airflow separation. The specific method chosen should depend on the actual situation. During the operation process, it is necessary to pay attention to safety issues and avoid accidents. Only through scientific and rigorous operation can high-quality seaside quartz sand be obtained, providing strong support for subsequent construction, road construction, and other fields.
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