The core application value of high-temperature resistant high-efficiency filters with separators lies in addressing the demand for “efficient air purification in high-temperature environments”. Therefore, their application fields are highly focused on industrial, medical, and special manufacturing scenarios that need to simultaneously meet “high-temperature working conditions” and “high cleanliness standards”. The following is a detailed classification by field, covering its specific application scenarios, core functions and typical demands:
I. Industrial manufacturing field: Ensuring production accuracy and product quality
Industry is the most important application scenario for high-temperature resistant high-efficiency filters with separators, especially for production processes where “particle contamination needs to be avoided in high-temperature process links”, which directly affects the product qualification rate.
1. Electronics and semiconductor manufacturing
Specific scenarios: High-temperature diffusion, oxidation, and sintering processes of semiconductor chips; High-temperature annealing and evaporation processes for liquid crystal panels (LCD/OLED); High-temperature packaging of electronic components (such as capacitors and resistors).
Core function: Filter the air entering the high-temperature process chamber to remove dust, metal particles, and volatile organic compounds (VOCs) pyrolysis products smaller than 0.3μm, preventing these impurities from adhering to the surface of chips or components, which could lead to circuit short circuits, poor display, and other defects.
Typical requirements: The filtration efficiency should reach H14-U15 grade (ultra-high efficiency), and the temperature resistance grade is mostly 180-250℃ (to match the continuous high-temperature requirements of the process).
2. Automobile and auto parts manufacturing
Specific scenarios: High-temperature electrophoretic painting of car bodies, drying rooms; High-temperature casting and heat treatment of engine blocks; High-temperature forming and coating of automotive glass.
Core function: Purify the intake air of the drying room and heat treatment furnace, prevent dust and fibers in the air from adhering to the uncured paint surface or the surface of high-temperature components, and avoid quality problems such as “orange peel texture” and “pinholes”. At the same time, it filters out metal debris in the exhaust to reduce pollution to the environment.
Typical requirements: Temperature resistance grade 180-300℃ (the temperature in the drying room is usually 120-220℃, and it can reach over 250℃ in the casting process), and filtration efficiency grade H13 can meet the standards of most automotive manufacturers.
3. Chemical Engineering and New Materials Manufacturing
Specific scenarios: High-temperature extrusion and vulcanization of polymer materials (such as plastics and rubber); High-temperature sintering of special ceramics (such as alumina ceramics) High-temperature calcination of cathode materials for lithium batteries (such as ternary materials).
Core function: On the one hand, it filters the air impurities that enter during the raw material reaction process to prevent them from affecting the purity of the material (for example, the purity of lithium battery materials is directly related to the battery capacity); On the other hand, filter out the dust in the high-temperature exhaust gas discharged to prevent environmental pollution or clogging of subsequent equipment.
Typical requirements: Temperature resistance grade 200-350℃ (ceramic sintering temperature can reach over 300℃), and stainless steel frames are required for some corrosive working conditions.
4. Metallurgy and Metal Processing
Specific scenarios: High-temperature annealing and quenching of special steel materials; High-temperature smelting and purification of precious metals (such as gold and silver) High-temperature atomization preparation of metal powders.
Core function: Purify the intake air of the high-temperature furnace to prevent oxygen, nitrogen and dust in the air from reacting with metals, which could lead to metal oxidation and inclusions, affecting their mechanical properties (such as the toughness of steel) or purity (for precious metals, the purity needs to be above 99.99%).
Typical requirements: Temperature resistance grade 300-500℃ (for some smelting processes, the temperature exceeds 400℃), and high-temperature resistant metal fiber filter materials or ceramic fiber filter materials must be used.
Ii. Medical and biosafety fields: Balancing high-temperature disinfection and purification protection
The application in this field focuses on “air purification in high-temperature disinfection scenarios”, which not only needs to meet the high-temperature requirements of disinfection but also prevent the spread or contamination of microorganisms.
1. Medical equipment and disinfection
Specific scenario: Auxiliary air purification for high-temperature sterilization cabinets (such as pulsating vacuum sterilization cabinets); High-temperature exhaust air filtration for infectious disease wards and biosafety laboratories; Air purification for dental high-temperature porcelain furnaces.
Core function: When the sterilization cabinet is in operation, it needs to filter the incoming air to prevent impurities from affecting the sterilization effect. The exhaust air from the infectious disease ward, after being filtered at high temperatures, can inactivate some viruses (such as the novel coronavirus and influenza virus), preventing aerosol spread. The purification of the porcelain oven can prevent dust from affecting the accuracy of dentures.
Typical requirements: Temperature resistance grade 180-250℃ (the temperature of a sterilization cabinet is usually 134℃, but a safety margin must be reserved), filtration efficiency H13-H14 grade, and it must meet medical-grade biological safety (no shedding).
2. Biopharmaceuticals and vaccine production
Specific scenario: High-temperature inactivation process of vaccines; Purification of the intake air of high-temperature fermentation tanks for biological agents (such as antibiotics); High-temperature forming and cleaning treatment of pharmaceutical glass.
Core function: Filter the air entering the fermentation tank, remove miscellaneous bacteria and dust, and prevent contamination of the bacterial strains. The air purification in the high-temperature inactivation process can prevent external impurities from mixing with the vaccine, ensuring the safety of the drug.
Typical requirements: Comply with GMP (Good Manufacturing Practice) standards, withstand temperatures around 200℃, have a filtration efficiency of H14 grade, and the filter material must pass biocompatibility tests.
Iii. Aerospace and military Industry: Adapted to extreme high temperatures and high reliability requirements
This field has extremely high requirements for the “high-temperature resistance limit” and “structural stability” of filters, and they need to be adapted to the purification needs under extreme working conditions.
Aerospace manufacturing
Specific scenarios: High-temperature casting and plasma spraying of turbine blades for aero engines; The high-temperature heat-resistant coating of the spacecraft shell cures. High-temperature welding of satellite solar panels.
Core function: Purify the air in the high-temperature process environment, remove metal oxide particles and coating debris, ensure the surface accuracy and mechanical properties (such as high-temperature fatigue resistance) of key components like turbine blades, and prevent engine failures caused by impurities.
Typical requirements: Temperature resistance grade 350-500℃ (turbine blade casting temperature exceeds 400℃), metal frame + ceramic fiber filter material, with anti-vibration and anti-shock capabilities.
2. Military Industry and special Equipment
Specific scenario: Exhaust filtration on the high-temperature test bench of the missile engine; High-temperature air purification for special protective equipment; Purification of high-temperature environmental adaptability test chambers for military electronic equipment.
Core function: The exhaust filter on the test bench can capture metal particles produced by engine combustion, preventing contamination of the test site and protecting subsequent monitoring equipment. The purification of protective equipment can ensure the respiratory safety of personnel in high-temperature environments.
Typical requirements: Temperature resistance above 500℃ (special customization), filtration efficiency above U15 grade, and must meet military-grade requirements for harsh environments (such as high humidity and corrosive gases).
Iv. Other Special Fields: Targeted solutions to the pain points of high-temperature purification
1. Food and beverage processing
Specific scenario: High-temperature spray drying of powdered foods (such as milk powder and protein powder); Purification of the intake air of the high-temperature sterilizer for canned food; Air purification for high-temperature ovens of baked goods.
Core function: Filter the intake air of the drying tower and oven, remove dust and microorganisms, and prevent food contamination. At the same time, filter the food powder in the exhaust gas to avoid the risk of dust explosion in the workshop.
Typical requirements: Temperature resistance 180-220℃, meeting food-grade standards (no odor or migration of filter materials), filtration efficiency H13 grade.
2. Environmental protection and waste gas treatment
Specific scenarios: Dust removal of high-temperature exhaust gas from industrial kilns and waste incinerators; Exhaust gas purification for high-temperature incineration treatment of hazardous waste.
Core function: Capture smoke dust and heavy metal particles (such as lead and mercury) in high-temperature exhaust gas, reduce air pollution, and meet national exhaust gas emission standards (such as the “Integrated Emission Standard of Air Pollutants”).
Typical requirements: Temperature resistance of 300-400℃, use of corrosion-resistant filter materials (such as PTFE-coated glass fiber), filtration efficiency of H13 grade or above.
Summary: Core commonalities in application fields
All application scenarios of high-temperature resistant high-efficiency filters with separators revolve around a core commonality – “Efficient particle removal must be achieved in high-temperature environments”
For industrial manufacturing, it is about ensuring the precision and purity of products.
For medical biology, it is about balancing disinfection and biosafety.
For the aviation and military industry, it is about adapting to extreme working conditions and ensuring reliability.
For eco-friendly food, it is about meeting safety and compliance requirements.
I. Industrial manufacturing field: Ensuring production accuracy and product quality
Industry is the most important application scenario for high-temperature resistant high-efficiency filters with separators, especially for production processes where “particle contamination needs to be avoided in high-temperature process links”, which directly affects the product qualification rate.
1. Electronics and semiconductor manufacturing
Specific scenarios: High-temperature diffusion, oxidation, and sintering processes of semiconductor chips; High-temperature annealing and evaporation processes for liquid crystal panels (LCD/OLED); High-temperature packaging of electronic components (such as capacitors and resistors).
Core function: Filter the air entering the high-temperature process chamber to remove dust, metal particles, and volatile organic compounds (VOCs) pyrolysis products smaller than 0.3μm, preventing these impurities from adhering to the surface of chips or components, which could lead to circuit short circuits, poor display, and other defects.
Typical requirements: The filtration efficiency should reach H14-U15 grade (ultra-high efficiency), and the temperature resistance grade is mostly 180-250℃ (to match the continuous high-temperature requirements of the process).
2. Automobile and auto parts manufacturing
Specific scenarios: High-temperature electrophoretic painting of car bodies, drying rooms; High-temperature casting and heat treatment of engine blocks; High-temperature forming and coating of automotive glass.
Core function: Purify the intake air of the drying room and heat treatment furnace, prevent dust and fibers in the air from adhering to the uncured paint surface or the surface of high-temperature components, and avoid quality problems such as “orange peel texture” and “pinholes”. At the same time, it filters out metal debris in the exhaust to reduce pollution to the environment.
Typical requirements: Temperature resistance grade 180-300℃ (the temperature in the drying room is usually 120-220℃, and it can reach over 250℃ in the casting process), and filtration efficiency grade H13 can meet the standards of most automotive manufacturers.
3. Chemical Engineering and New Materials Manufacturing
Specific scenarios: High-temperature extrusion and vulcanization of polymer materials (such as plastics and rubber); High-temperature sintering of special ceramics (such as alumina ceramics) High-temperature calcination of cathode materials for lithium batteries (such as ternary materials).
Core function: On the one hand, it filters the air impurities that enter during the raw material reaction process to prevent them from affecting the purity of the material (for example, the purity of lithium battery materials is directly related to the battery capacity); On the other hand, filter out the dust in the high-temperature exhaust gas discharged to prevent environmental pollution or clogging of subsequent equipment.
Typical requirements: Temperature resistance grade 200-350℃ (ceramic sintering temperature can reach over 300℃), and stainless steel frames are required for some corrosive working conditions.
4. Metallurgy and Metal Processing
Specific scenarios: High-temperature annealing and quenching of special steel materials; High-temperature smelting and purification of precious metals (such as gold and silver) High-temperature atomization preparation of metal powders.
Core function: Purify the intake air of the high-temperature furnace to prevent oxygen, nitrogen and dust in the air from reacting with metals, which could lead to metal oxidation and inclusions, affecting their mechanical properties (such as the toughness of steel) or purity (for precious metals, the purity needs to be above 99.99%).
Typical requirements: Temperature resistance grade 300-500℃ (for some smelting processes, the temperature exceeds 400℃), and high-temperature resistant metal fiber filter materials or ceramic fiber filter materials must be used.
Ii. Medical and biosafety fields: Balancing high-temperature disinfection and purification protection
The application in this field focuses on “air purification in high-temperature disinfection scenarios”, which not only needs to meet the high-temperature requirements of disinfection but also prevent the spread or contamination of microorganisms.
1. Medical equipment and disinfection
Specific scenario: Auxiliary air purification for high-temperature sterilization cabinets (such as pulsating vacuum sterilization cabinets); High-temperature exhaust air filtration for infectious disease wards and biosafety laboratories; Air purification for dental high-temperature porcelain furnaces.
Core function: When the sterilization cabinet is in operation, it needs to filter the incoming air to prevent impurities from affecting the sterilization effect. The exhaust air from the infectious disease ward, after being filtered at high temperatures, can inactivate some viruses (such as the novel coronavirus and influenza virus), preventing aerosol spread. The purification of the porcelain oven can prevent dust from affecting the accuracy of dentures.
Typical requirements: Temperature resistance grade 180-250℃ (the temperature of a sterilization cabinet is usually 134℃, but a safety margin must be reserved), filtration efficiency H13-H14 grade, and it must meet medical-grade biological safety (no shedding).
2. Biopharmaceuticals and vaccine production
Specific scenario: High-temperature inactivation process of vaccines; Purification of the intake air of high-temperature fermentation tanks for biological agents (such as antibiotics); High-temperature forming and cleaning treatment of pharmaceutical glass.
Core function: Filter the air entering the fermentation tank, remove miscellaneous bacteria and dust, and prevent contamination of the bacterial strains. The air purification in the high-temperature inactivation process can prevent external impurities from mixing with the vaccine, ensuring the safety of the drug.
Typical requirements: Comply with GMP (Good Manufacturing Practice) standards, withstand temperatures around 200℃, have a filtration efficiency of H14 grade, and the filter material must pass biocompatibility tests.
Iii. Aerospace and military Industry: Adapted to extreme high temperatures and high reliability requirements
This field has extremely high requirements for the “high-temperature resistance limit” and “structural stability” of filters, and they need to be adapted to the purification needs under extreme working conditions.
Aerospace manufacturing
Specific scenarios: High-temperature casting and plasma spraying of turbine blades for aero engines; The high-temperature heat-resistant coating of the spacecraft shell cures. High-temperature welding of satellite solar panels.
Core function: Purify the air in the high-temperature process environment, remove metal oxide particles and coating debris, ensure the surface accuracy and mechanical properties (such as high-temperature fatigue resistance) of key components like turbine blades, and prevent engine failures caused by impurities.
Typical requirements: Temperature resistance grade 350-500℃ (turbine blade casting temperature exceeds 400℃), metal frame + ceramic fiber filter material, with anti-vibration and anti-shock capabilities.
2. Military Industry and special Equipment
Specific scenario: Exhaust filtration on the high-temperature test bench of the missile engine; High-temperature air purification for special protective equipment; Purification of high-temperature environmental adaptability test chambers for military electronic equipment.
Core function: The exhaust filter on the test bench can capture metal particles produced by engine combustion, preventing contamination of the test site and protecting subsequent monitoring equipment. The purification of protective equipment can ensure the respiratory safety of personnel in high-temperature environments.
Typical requirements: Temperature resistance above 500℃ (special customization), filtration efficiency above U15 grade, and must meet military-grade requirements for harsh environments (such as high humidity and corrosive gases).
Iv. Other Special Fields: Targeted solutions to the pain points of high-temperature purification
1. Food and beverage processing
Specific scenario: High-temperature spray drying of powdered foods (such as milk powder and protein powder); Purification of the intake air of the high-temperature sterilizer for canned food; Air purification for high-temperature ovens of baked goods.
Core function: Filter the intake air of the drying tower and oven, remove dust and microorganisms, and prevent food contamination. At the same time, filter the food powder in the exhaust gas to avoid the risk of dust explosion in the workshop.
Typical requirements: Temperature resistance 180-220℃, meeting food-grade standards (no odor or migration of filter materials), filtration efficiency H13 grade.
2. Environmental protection and waste gas treatment
Specific scenarios: Dust removal of high-temperature exhaust gas from industrial kilns and waste incinerators; Exhaust gas purification for high-temperature incineration treatment of hazardous waste.
Core function: Capture smoke dust and heavy metal particles (such as lead and mercury) in high-temperature exhaust gas, reduce air pollution, and meet national exhaust gas emission standards (such as the “Integrated Emission Standard of Air Pollutants”).
Typical requirements: Temperature resistance of 300-400℃, use of corrosion-resistant filter materials (such as PTFE-coated glass fiber), filtration efficiency of H13 grade or above.
Summary: Core commonalities in application fields
All application scenarios of high-temperature resistant high-efficiency filters with separators revolve around a core commonality – “Efficient particle removal must be achieved in high-temperature environments”
For industrial manufacturing, it is about ensuring the precision and purity of products.
For medical biology, it is about balancing disinfection and biosafety.
For the aviation and military industry, it is about adapting to extreme working conditions and ensuring reliability.
For eco-friendly food, it is about meeting safety and compliance requirements.
Its application boundaries are thus clearly defined: when the scenario simultaneously meets the requirements of “temperature > 80℃ (the upper limit that ordinary filters can withstand)” and “filtration accuracy ≥99.97% (high-efficiency grade)”, it is the core applicable range of this filter.
