-
-
-
中国河北省安平县城东开发区红星路 1 号
关于我们
我们采用优质材料生产高质量产品！36 多年来，红星公司一直致力于矿山和砂石行业广泛使用的筛分介质的工程设计和制造。
我们采用优质材料生产高质量产品！36 多年来，红星公司一直致力于矿山和砂石行业广泛使用的筛分介质的工程设计和制造。
Mineral screens play a vital role in the water treatment industry Their core functions are physical screening , impurity interception and process protection, which directly affect water purification efficiency, equipment life and operating costs
Screen (coarse/medium/fine):
Application scenarios:
Water inlet of municipal sewage treatment plant and front end of industrial wastewater treatment.
effect:
Intercept large solids (branches, plastics, household garbage) to prevent clogging of pumps, valves and pipes;
Protect subsequent biological treatment units (such as aeration tanks and MBR membranes) from mechanical damage.
Screen Type:
Stepped grid screen: used for high-flow sewage, with a gap of 20-50mm;
Drum type fine screen: gap 1-6mm, removes hair, fiber and other small debris.
Microfiltration screen (vibrating/rotating drum type):
Application scenarios:
Pretreatment of membrane bioreactor (MBR) and reverse osmosis (RO) systems.
effect:
Removes 0.1-1mm suspended particles, reduces membrane fouling risk, and extends membrane life by 3-5 times;
Reduce the frequency of chemical cleaning (e.g., extend the RO membrane cleaning cycle from monthly to quarterly).
Screen Type:
Stainless steel wedge wire screen: pore size 0.2-0.5mm, strong corrosion resistance;
Polyurethane self-cleaning screen: with bouncing ball design to prevent clogging.
High frequency vibrating screen:
Application scenarios:
Electroplating wastewater (metal particles), textile printing and dyeing wastewater (fiber debris), food processing wastewater (grease suspended matter).
effect:
Separate heavy metal particles (such as copper powder, nickel slag) and recycle resources;
Intercept fiber impurities to avoid entanglement of biological fillers or clogging of aeration heads.
Screen Type:
Acid and alkali resistant polyester screen: pH tolerance range 1-14;
Anti-stick coating screen: reduces grease adhesion (such as PTFE coating).
Multi-layer composite screen:
Application scenarios:
Seawater pretreatment (removal of algae and shell fragments), raw water filtration in drinking water plants.
effect:
Protect high-pressure pumps and reverse osmosis membranes from wear caused by hard particles;
Improve effluent water quality (turbidity ≤ 1NTU).
Screen Type:
Titanium alloy screen: resistant to seawater corrosion, service life of more than 10 years;
Ultra-high molecular weight polyethylene (UHMWPE) screen: prevents biofilm growth.
Centrifugal screen:
Application scenarios:
Feed end of belt filter press and centrifugal dehydrator.
effect:
Pre-screening of large particles of impurities (such as gravel and plastic pieces) in sludge to prevent damage to dewatering equipment;
Improve the solid content of sludge (from 0.5% to 5%) and reduce the energy consumption of subsequent treatment.
Intercepting large particles can reduce the frequency of pump and valve maintenance (repair costs reduced by 40%);
Extend the life of the membrane system (saving 500,000 to 1,000,000 yuan/year in RO membrane replacement costs).
Ensure that the effluent suspended solids (SS) is ≤10mg/L, meeting the Pollutant Discharge Standard for Urban Wastewater Treatment Plants (GB 18918-2002);
The heavy metal removal rate in industrial wastewater has been increased to over 95% (for example, the copper ion concentration in electroplating wastewater has been reduced from 50 mg/L to 1 mg/L).
Recover metal particles from wastewater (e.g. copper powder recovery value is 3,000 yuan/ton);
After dehydration, the sludge is incinerated to generate electricity, realizing energy utilization.
选择取决于物料硬度、含水量、颗粒大小和冲击力：
潮湿或粘性物料 → 聚氨酯筛网（防堵塞）
高磨损物料 → 锰钢编织网或冲孔板
高精度筛分 → 不锈钢编织网
重冲击物料 → 钢边聚氨酯板或橡胶筛板
选择正确的筛网可以提高产量并减少停机时间。
使用寿命随物料磨蚀性、振动频率、安装张力和筛网类型而变化：
聚氨酯筛网：3-12 个月
锰钢筛网：1-6 个月
不锈钢筛网：2-8 个月
橡胶板：4-12 个月
正确的张紧和选择合适的孔径可显著延长使用寿命。
堵塞由于水分、不规则颗粒形状或不合适的孔径设计引起。 预防方法：
使用自清理筛网（波浪型或琴弦型）
更换为聚氨酯防堵塞筛网
调整振动振幅和筛面倾角
对潮湿或泥泞物料进行预筛分
防堵塞解决方案大大提高了筛分效率。
更换期间的关键点包括：
确保整个筛网的张力一致
检查筛框是否有变形
钩子类型或紧固系统与您的筛机匹配
清理筛床以清除残留物料
正确的安装可减少破损并提高筛分精度。
筛分效率可以通过以下方式提高：
选择合适的孔径和筛网材料
调整振动频率和筛子倾角
保持均匀的物料进给
使用多级筛分设计
定期维护筛床和筛网
通常可实现 10-30% 的效率提升。
