Energy Sector

Application in traditional energy fields

(1) Coal industry

A. Coal screening and washing:

Mine screens are used to classify raw coal according to particle size (such as lump coal, fine coal, and coal powder), and remove impurities such as gangue and sulfur through the washing process, thereby improving coal combustion efficiency and reducing pollution emissions.

B. Classification of thermal coal and chemical coal:

Screening can be used to meet the needs of different applications (e.g. coal for power generation needs to have controlled particle size, while coal for chemical industry needs to have high purity).

(2) Oil and natural gas extraction

A. Screening of fracturing proppant (ceramsite sand):

In the fracturing operation of shale gas and shale oil extraction, the mine screen is used to screen high-strength ceramsite sand (proppant) to ensure its uniform particle size, prevent the closure of fracturing cracks, and ensure the efficiency of oil and gas flow.

B. Drilling fluid treatment:

Screen cuttings and impurities in drilling fluid to maintain the cleanliness and circulation performance of drilling fluid.

(3) Natural gas purification

Desulfurizer and adsorbent screening:

In the natural gas desulfurization and dehydration process, mineral screens are used to grade activated carbon, molecular sieves and other adsorption materials to ensure that their particle size meets the process requirements and improve purification efficiency.

Application in the fields of new energy and clean energy

(1) Lithium ore and battery material production

A. Spodumene/lepidolite screening:

In lithium ore processing, ore screens are used to grade crushed ore and extract lithium concentrate, providing high-purity raw materials for lithium battery positive electrode materials (such as lithium carbonate and lithium hydroxide).

B. Battery material particle size control:

Precision screening of battery precursors such as lithium cobalt oxide and ternary materials to ensure particle uniformity directly affects battery performance and safety.

(2) Shale gas and combustible ice development

A. Fracturing proppant classification:

Similar to conventional oil and gas, mining screens are used to screen proppants in shale gas and combustible ice mining to ensure the conductivity of reservoir fractures.

B. Hydrate separation:

In methane hydrate mining, screening technology is used to separate solid hydrates from impurities and improve energy extraction efficiency.

(3) Geothermal energy development

Geothermal fluid filtration:

Mine screens are used to filter cuttings and sediments in geothermal wells to prevent pipe blockage and equipment wear in geothermal power generation systems.

(4) Biomass energy

Biomass particle screening:

In the production of biomass fuels (such as wood chips and straw pellets), screening is used to remove oversized or oversized particles to ensure combustion efficiency and thermal stability.

Role in energy conversion and environmental protection

(1) Coal-fired power plants and environmental protection

A. Coal powder screening:

Control the particle size of coal powder entering the furnace, optimize combustion efficiency, and reduce unburned carbon loss and nitrogen oxide emissions.

B. Desulfurization gypsum treatment:

The gypsum by-product after screening of coal-fired flue gas desulfurization is used in building materials production to achieve resource recycling.

( 2 ) Hydrogen energy and energy storage

Catalyst carrier screening:

In the production of hydrogen production by water electrolysis or fuel cell catalysts, materials such as alumina and carbon carriers are screened to ensure catalyst activity and stability.

Improve energy extraction efficiency:

Through precise screening, ineffective processing is reduced and the energy production cycle is shortened (for example, coal washing efficiency is increased by 20%-30%).

Reduce energy production costs:

Avoid excessive crushing and repeated processing, saving energy and equipment maintenance costs (e.g., shale gas proppant screening costs are reduced by 15%).

Ensuring the quality of energy products:

Control the particle size and purity of raw materials (such as lithium concentrate screening accuracy of more than 95%) to ensure that the performance of terminal energy products (electricity, batteries, gas) meets the standards

Supporting green energy transformation:

Recover useful minerals (such as rare earths and lithium) through tailings screening to reduce resource waste;

Optimize processes and reduce carbon emissions in the production of clean energy such as biomass and geothermal energy.

Promoting technological innovation:

New technologies such as high-frequency vibrating screens and polyurethane screens facilitate the development of unconventional energy (shale gas and combustible ice);

The intelligent screening system is combined with the Internet of Things to realize the digital management of the energy production process.

Improve energy extraction efficiency:

Ensuring the quality of energy products:

Promoting technological innovation: