多介质过滤器(又称机械过滤器)是以成层状的无烟煤、砂、细碎的石榴石或其他材料为床层，床的由轻和粗品级的材料组成，而重和细品级的材料放在床的低部。

The multi-media filter (also known as mechanical filter) takes layered anthracite, sand, fine garnet or other materials as the bed layer. The top layer of the bed is composed of light and coarse grade materials, while the heavy and fine grade materials are placed in the lower part of the bed.

（1）其原理为按深度过滤--水中较大的颗粒在被去除，较小的颗粒在过滤器介质的较深处被去除。从而使水质达到粗过滤后的标准。

(1) The principle is deep filtration - the larger particles in the water are removed at the top layer, and the smaller particles are removed at the deeper part of the filter medium. So that the water quality can reach the standard after coarse filtration.

(2)性能特点

(2) Performance characteristics

多介质过滤器可去除水中大颗粒悬浮物，从而降低水的SDI值，满足深层净化的水质要求。该设备具有造价低廉，运行费用低，操作简单;滤料经过反洗，可多次使用，滤料使用寿命长等特点。

The multi-media filter can remove the suspended solids of large particles in water, thus reducing the SDI value of water and meeting the water quality requirements of deep purification. The equipment has the advantages of low cost, low operation cost and simple operation; After backwashing, the filter material can be used for many times and has long service life.

(3)应用范围

(3) Scope of application

多介质过滤器广泛用于水处理工艺中，主要用于水处理除浊、软化水、电渗析、反渗透的前级预处理，也可用于地表水、地下水的除泥沙等。

Multi media filter is widely used in water treatment process, mainly used for turbidity removal, softening water, electrodialysis, reverse osmosis pre-treatment, also can be used for surface water, groundwater sediment removal, etc.

(4)产品简介

(4) Product introduction

本产品生产的多介质过滤器按控制类型可分为手动型和全自动型。手动型主要是通过阀门的调节来控制过滤器的运行、正洗、反洗;而全自动型是通过FLECK控制器来进行对过滤器运行，正洗、反洗等状态的控制，按罐体材质可分为玻璃钢罐、碳钢罐、不锈钢罐，罐内壁可根据用户要求做内涂环氧涂层或衬胶防腐。

The multi-media filter produced by this product can be divided into manual type and automatic type according to the control type. The manual type mainly controls the operation, washing and backwashing of the filter through the adjustment of the valve; The full-automatic type is to control the filter operation, forward washing, backwashing and other states through the fleck controller. According to the tank material, it can be divided into FRP tank, carbon steel tank and stainless steel tank. The inner wall of the tank can be coated with epoxy coating or rubber lining for anti-corrosion according to the user's requirements.