机械过滤器   

    机械过滤器也称压力式过滤器,是水净化系统预处理的重要组成部分,其具有过滤阻力小、流量大等特点。主要用于给水处理除浊,反渗透以及离子交换软化除盐系统的前级预处理,也可用于电力、石油、电子、饮料、自来水、化工、治金、纺织、造纸、食品、游泳池、市政工程等各种工艺用水、生活用水、循环用水和废水的深度处理领域。根据过滤介质不同可分为石英砂过滤器、活性炭过滤器、除铁锰过滤器、多介质过滤器等。

石英砂过滤器
    采用石英砂为过滤介质,石英砂过滤器一般作为纯水设备以及超滤设备的预处理,它主要是通过过滤泥沙、胶体、金属离子以及有机物进行截留、吸附。因其无污染,价格低廉,运行成本低,所以应用比较广泛。

活性炭过滤器
    通过活性炭颗粒组成炭床。炭床的活性炭颗粒有非常多的微孔和巨大的比表面积,具有很强的物理吸附能力。在水质预处理系统中,活性炭过滤器能够吸附前级过滤中无法去除的余氯以防止后级反渗透膜受其氧化降解,同时还吸附从前级泄漏过来的小分子有机物等污染性物质,对水中异味、胶体及色素、重金属离子、COD等有较明显的吸附去除作用。

除铁锰过滤器
    采用天然锰砂为过滤介质。除铁原理为地下水中二价铁离子,经曝气后,流经滤层过滤时,被覆盖在滤料表面的生物膜吸附,并在催化的作用下被溶解氧所氧化,并吸附在滤料上,氧化生成的三价铁的氧化物,作为新的滤膜参与新的催化反应,待产水运行一个周期反洗将过剩的氧化物冲掉。滤层由于离子选择吸收原理,先除铁后除锰。在PH值等于6.8-7.2条件下,Fe(OH)2呈胶体凝聚沉淀,用过滤的方法即可除去。

多介质过滤器
    采用两种以上的介质作为滤层的介质过滤器,在一定的压力下把浊度较高的水通过一定厚度的粒状或非粒材料,从而有效的除去悬浮杂质使水澄清的过程,常用的滤料有石英砂,无烟煤锰砂等,在水处理系统中,用于除浊,除油、除味、软化水,纯水的前级预处理等,特别是能有效地去除沉涟技术不能去除的微小粒子和细菌。

Mechanical filter 

Mechanical filter, also known as pressure filter, is an important part of water purification system pretreatment, which has the characteristics of small filtration resistance and large flow. It is mainly used in the pre-treatment of water supply treatment and turbidity removal, reverse osmosis and ion exchange softening and desalination system. It can also be used in the field of advanced treatment of various process water, living water, circulating water and wastewater, such as electric power, petroleum, electronics, beverage, tap water, chemical industry, gold treatment, textile, papermaking, food, swimming pool, municipal engineering, etc. According to different filter media, it can be divided into quartz sand filter, activated carbon filter, iron and manganese removal filter, multi-media filter, etc.

Quartz sand filter

Quartz sand is used as the filter medium, and quartz sand filter is generally used as the pretreatment of pure water equipment and ultrafiltration equipment. It mainly intercepts and adsorbs by filtering sediment, colloid, metal ions and organic matters. Because it has no pollution, low price and low operation cost, it is widely used.

Activated carbon filter

The base is composed of activated carbon particles. The activated carbon particles in the carbon bed have many micropores and huge specific surface area, and have strong physical adsorption capacity. In the water quality pretreatment system, the activated carbon filter can absorb the residual chlorine that cannot be removed in the previous stage filtration to prevent the later stage reverse osmosis membrane from being oxidized and degraded, and also absorb the small molecule organic matter and other pollutants leaked from the previous stage, which has a more obvious adsorption and removal effect on the peculiar smell, colloid and pigment, heavy metal ions, COD, etc. in the water.

Iron and manganese removal filter

Natural manganese sand is used as filter medium. The principle of iron removal is divalent iron ion in groundwater. After aeration, when it flows through the filter, it is adsorbed by the biofilm covered on the surface of the filter material, oxidized by dissolved oxygen under the catalysis, and adsorbed on the filter material. The ferric oxide generated by the oxidation participates in the new catalytic reaction as a new filter membrane, and the surplus oxide is washed away by backwashing in one cycle of the water to be produced. Due to the principle of ion selective absorption, iron is removed first and then manganese is removed. When the pH value is equal to 6.8-7.2, Fe (OH) 2 is colloidal coagulated and precipitated, which can be removed by filtration.

Multi-media filter

More than two kinds of media are used as the media filter of filter layer. Under a certain pressure, the water with higher turbidity is passed through a certain thickness of granular or non granular material, so as to effectively remove suspended impurities and clarify the water. The commonly used filter materials are quartz sand, anthracite manganese sand, etc. in the water treatment system, they are used for turbidity removal, oil removal, odor removal, softened water, pre-treatment of pure water, etc., especially for Effectively remove the tiny particles and bacteria that can not be removed by the sink ripple technology.

产品特点：

1)设备造价低廉,运行成本费用低,管理简便。
2)滤料经过反洗可多次使用,滤料寿命长。
3)过滤效果好,占地面积小。
4)反洗方式多样,手动、时间、压差。

Product features

• 1) The equipment has low cost, low operating cost and simple management.
• 2) The filter material can be used many times after backwashing, and the filter material has a long life.
• 3) Good filtering effect and small floor space.
• 4)There are various backwashing methods, including manual, time and differential pressure.

技术参数
1)处理效果

• 1.进水浊度:<20NTU,出水浊度:<3NTU;
• 2.截污容量:5-15Kg/m3(滤料)。

2)工作环境参数

• 1.工作温度:5-60℃（特殊温度可定做）

• 2.工作压力:≤0.6MPa

• 3.进水水压:0.2-0.4MPa;

• 4.反冲洗进水水压:0.15-0.6MPa5

• 5.进出口压差:0.05MPa

3)运行参数

• 1.工作方式:压力式;

• 2.运行方式:水流自上而下;

• 3.过滤速度:10-15m/h;

• 4.运行周期:1-3天;

• 5.反洗方式:水洗,或气水结合反洗;

• 6.反洗耗水:1-3%

• 7.反洗强度:10L/s·m

• 8.反洗历时:5-30min

• 9.反洗膨胀率:40-50%。

4)本体材质:不锈钢、碳钢衬胶或涂环氧树脂。

5)工作方式:手动、电动、气动

Technical parameters

1) processing effect

• 1. Inlet turbidity :<20NTU, outlet turbidity :<3NTU;
• 2. Decontamination capacity: 5-15kg /m3(filter material).

2) working environment parameters

• 1. Operating temperature :5-60℃ (special temperature can be customized)
• 2. Working pressure :≤ 0.6mpa
• 3. Water inlet pressure: 0.2-0.4mpa;
• 4. Backwash inlet water pressure: 0.15-0.6mpa5 inlet and outlet pressure difference: 0.05mpa.

3) operation parameters

• 1. Work style: pressure type;
• 2. Operation mode: water flow from top to bottom;
• 3. Filtration speed :10-15m/h;
• 4. Operation cycle :1-3 days;
• 5. Backwash: wash with water or combined with air and water;
• 6. Backwash water consumption :1-3%
• 7. Backwashing strength :10L/s·m
• 8. Backwashing duration :5-30min
• 9. Backwash expansion rate :40-50%.

4) body material: stainless steel, carbon steel liner or epoxy resin.

5) working mode: manual, electric and pneumatic