In the production process of quartz plate sand, environmental protection
issues are particularly important because quartz sand production involves a
large number of processes such as ore crushing, screening, washing, and
grinding, which can generate pollutants such as dust, noise, wastewater, and
exhaust gas. In order to ensure that the production process meets environmental
requirements and achieve sustainable development, the following key
environmental indicators need to be paid attention to in the production process
of quartz plate sand:
1. Dust emissions
Dust pollution is one of the main environmental issues in quartz sand
production, especially in dry processes such as crushing, grinding, and
screening, where a large amount of dust is generated. Dust is not only harmful
to workers' health, but may also cause pollution to the surrounding
environment.
Dust concentration: The emission concentration of dust during the production
process needs to be controlled through dust removal equipment (such as bag
filters, wet dust removal systems, etc.) to ensure compliance with national or
regional emission standards.
Dust capture efficiency: Efficient dust removal equipment can improve dust
capture efficiency, reduce dust leakage, and lower air pollution.
Control measures:
Install dust removal facilities to ensure that dust emissions meet
environmental requirements.
Reduce dust concentration by wet treatment or watering.
2. Wastewater discharge
The sand washing process in quartz sand production usually uses a large
amount of water, especially in wet production, and the issue of wastewater
discharge is particularly important. Untreated wastewater may contain sand
particles, soil, chemical agents, and other pollutants. If discharged directly,
it can cause pollution to the water environment.
Wastewater treatment rate: The treatment capacity and reuse rate of
wastewater treatment systems are important indicators, and reasonable water
treatment equipment and processes can effectively treat and recycle
wastewater.
Solid content in wastewater: The content of suspended solids in wastewater
needs to be strictly controlled to reduce pollution to water bodies.
Control measures:
Equipped with a circulating water treatment system to recycle and reuse
wastewater generated during the production process.
Set up wastewater sedimentation tanks or sewage treatment devices to remove
suspended substances from wastewater.
Regularly detect harmful substances in wastewater to ensure that the
discharged water quality meets the standards.
3. Noise pollution
During the production process of quartz sand, crushing, grinding, and
screening equipment often produce high levels of noise, which has a certain
impact on the environment and the health of workers. Noise pollution needs to be
reduced through reasonable equipment selection and structural design.
Noise intensity: The noise from production equipment needs to be controlled
within a safe range to avoid interference with the environment and surrounding
residents.
Noise isolation and protection: Reduce equipment noise by installing
soundproof covers, installing vibration reduction equipment, and other
methods.
Control measures:
Use low-noise equipment or install noise reduction devices on high noise
equipment.
Set up noise isolation walls within the factory area to reduce noise
transmission.
Regularly maintain the equipment to avoid excessive noise caused by equipment
malfunctions.
4. Greenhouse gas emissions
During the production process of quartz sand, especially high-temperature
processes such as crushing and drying, certain greenhouse gases (such as carbon
dioxide) may be generated. Reducing greenhouse gas emissions is crucial in order
to comply with environmental policies and emission reduction requirements.
CO ₂ emissions: Thermal energy consumption in quartz sand production lines is
the main source of greenhouse gas emissions, and reducing energy consumption can
help lower CO ₂ emissions.
Energy efficiency: By improving energy efficiency in the production process,
such as using energy-saving heating equipment and adopting waste heat recovery
systems, greenhouse gas emissions can be reduced.
Control measures:
Adopt efficient and energy-saving heating and drying equipment.
Promote the use of clean energy sources (such as natural gas, solar energy,
etc.) and reduce the consumption of fossil fuels.
5. Waste management
During the production process of quartz sand, a certain amount of waste may
also be generated, including waste sand, waste materials, worn parts, etc. If
these wastes are not handled properly, they will have an impact on the
environment.
Waste recycling rate: Improve the recycling and utilization rate of waste,
and minimize the discharge of waste as much as possible.
Harmless treatment of waste: All waste should be treated harmlessly to ensure
that it does not cause secondary pollution to the environment.
Control measures:
Recycling and reusing waste sand, or using it for building materials and
other purposes.
Classify and process waste materials, and submit them to qualified treatment
plants after meeting environmental standards.
6. Energy consumption
The energy consumption of quartz sand production lines directly affects the
environmental burden, especially in high energy consuming processes such as
drying, grinding, and crushing. Excessive energy consumption not only increases
production costs, but also leads to increased environmental burden.
Unit capacity energy consumption: It is necessary to regularly evaluate the
energy consumption during the production process to ensure the efficient
utilization of energy in the production process.
Energy recovery and utilization: Optimize equipment and processes, reduce
unnecessary energy waste, and recover usable energy.
Control measures:
Adopting high-efficiency equipment to reduce energy consumption per unit of
product.
Using a thermal energy recovery system to improve energy efficiency and
reduce energy consumption.
7. Hazardous substance emissions
In the production process of quartz sand, especially when using chemical
treatments such as acid washing and flotation, certain harmful chemicals (such
as hydrofluoric acid, hydrochloric acid, etc.) may be used. If these substances
are not managed properly, they may pose a threat to the environment and human
health.
Harmful substance emission concentration: The concentration of harmful
substances emitted during the production process needs to comply with
environmental standards to ensure that it will not cause pollution to the air,
water sources, and soil.
Exhaust emission monitoring: Regularly detect the concentration of harmful
gases in exhaust gas to ensure compliance with emission standards.
Control measures:
Using environmentally friendly chemical agents to replace harmful chemicals
and reduce environmental pollution.
Configure exhaust gas treatment systems, such as activated carbon adsorption
devices, to ensure that harmful gas emissions meet standards.
8. Compliance and Monitoring
The compliance and continuous monitoring of environmental indicators are
important links in the production process of quartz sand. The continuous changes
in environmental regulations and policies require production enterprises to
continuously track relevant environmental requirements and conduct regular
inspections and adjustments to the production process.
Environmental compliance: Ensure that all aspects of the production process
comply with local government and industry environmental standards.
Environmental monitoring: Regularly monitor the air, water quality, noise,
and other environmental factors to ensure that production activities do not have
a negative impact on the surrounding environment.
Control measures:
Install an environmental monitoring system to monitor pollutant emissions in
real-time during the production process.
Regularly conduct environmental audits to ensure compliance with
environmental laws and regulations.