In the production of quartz plate sand, water quality has a significant
impact on the purity and particle uniformity of the product, as well as the
color and transparency of the final product. Therefore, controlling water
quality to ensure its stability and purity is crucial, especially in wet
processes. Here are some effective water quality control measures and their
specific impacts on product quality:
1. Control of impurities in water
-Mineral impurities: Plasma such as iron, aluminum, and calcium in water can
affect the transparency and purity of quartz sand, which may lead to impurities
in the finished product. To avoid this situation, mineral impurities are usually
removed through filtration and ion exchange devices before using water.
-Particle impurities: Particle impurities such as sediment and dust can
affect the uniformity of quartz sand particles, leading to a decrease in product
quality. Choosing a suitable filtration system (such as microfiltration or
ultrafiltration equipment) can effectively remove these particulate
impurities.
2. Control of pH value
-The chemical stability of quartz sand is greatly affected by acidity and
alkalinity. Excessively high or low pH values can cause chemical reactions on
the surface of quartz sand, resulting in coarsening and adhesion of particles,
affecting production efficiency and product quality.
-Generally, maintaining the pH value of water at neutral or slightly acidic
(between 6-7) is beneficial for the high purity and uniformity of the product.
During the production process, online pH monitoring equipment can be used to
adjust the pH value of water quality by adding buffering agents.
3. Hardness control
-High hardness water is prone to form scale in production equipment,
especially in evaporators and heat exchangers. The accumulation of scale not
only affects the heat dissipation and operation of equipment, but may also be
mixed into quartz sand, reducing product purity.
-Softening treatment, such as ion exchange or adding softeners, can be used
to reduce the calcium and magnesium ion content in water, thereby controlling
the hardness of water and reducing scale formation.
4. Microbial control
-In wet production, microorganisms in water will form biofilms in water
storage tanks and pipelines, causing surface contamination of quartz sand
particles and affecting their purity and color.
-By regularly using ultraviolet sterilization or adding appropriate amounts
of microbial inhibitors to control the growth of microorganisms, ensuring that
the water does not contain impurities and pollutants, the purity of the product
can be improved.
5. Control of water temperature
-The change in water temperature can affect the solubility and particle
distribution of quartz sand, and higher or lower water temperatures can lead to
a decrease in stability during the production process.
-To maintain a constant water temperature, heat exchange equipment can be
used to regulate the temperature, ensuring that the water temperature is
moderate during the production process, usually controlled between 20 ℃ -30 ℃,
to avoid affecting the particle uniformity and transparency of quartz sand.
6. Water quality monitoring system
-Installing an online water quality monitoring system on the production line
can monitor impurities, pH, hardness, and other indicators in water in real
time, achieving automated control of water quality.
-The water quality monitoring system can automatically sound an alarm and
make adjustments to avoid affecting production quality due to water quality
issues. Regularly calibrating the accuracy of the monitoring system is also a
necessary means to ensure stable water quality.
summary
By strictly controlling factors such as impurities, pH value, hardness,
microbial content, and temperature in water quality, the production line can
better ensure the purity, uniformity, and color consistency of quartz plate
sand, thereby improving product quality and market competitiveness.