Shallow sand filter ( Quartz sand filter) Manufacturers design selection

Shallow quartz sand filter principle of shallow sand filter, also known as automatic shallow sand filter, shallow quartz sand filter, shallow sand filter system is composed of multiple standards of the sand cylinder unit, its interior is equipped with unique water distribution and collection of water, has a unique two-way automatic flush valve, which can realize multiple standards in normal system operation high-speed sand cylinder one by one single back flush, automatic process control. Has the backwash water consumption is small, convenient installation, easy operation, etc. The equipment is large flow and dispensing with maintenance. According to different user requirements, there are vertical and horizontal two series. Applicable to industrial and civil water treatment of circulating water system. A working principle,

is to wash the filter state: when the system is in a state of filtration, unfiltered water through their own unique cloth water heater uniform water distribution, water in the state of laminar flow through the filter packing layer ( Refined grain of quartz sand/garnet) 。 When the water flow through the packing layer, impurities trapped within the packing layer. Have multiple sets of uniform distribution of water at the bottom of the filter, to collect and raises the filtered water equably, smoothing filter, can make the filter under high velocity, still can achieve better filtering effect.

shallow filter by sand filter cylinder and the corresponding control system commonly fill enough quantity of quartz sand, also called sand filter cylinder, shallow sand filter, etc. Design production of shallow water treatment filter can according to customer request custom block, custom control method to realize unattended automatic operation.

2, the characteristics of shallow quartz sand filter:

1, the filter can be customized, suitable for all kinds of environment ( General for stainless steel and carbon steel lining plastic) ；

2, shallow sand filter, high flux, velocity, filtration precision is moderate, is suitable for fast coarse filter;

3, automatic control, can be customized for differential pressure control and time control;

4, can be single cylinder and multi-cylinder series operation.

3, the application of shallow sand filter:

1, swimming pool water filtration;

2, aquaculture water filtration;

3, irrigation water filter;

4, next to the circulating water filter;

5, landscape water pretreatment;

6, industrial water pretreatment.

4, shallow sand filter applicable industries

1. Industrial water filtration - - - Is a certain system requirements for water quality. Such as: steel oxygen gun water, boiler, heat exchanger, such as water filter can filter out the impurities in the water, avoid pipeline several nozzle blockage.

2。 Industrial circulating water filtration system.

3。 The processing of raw water - - - On the surface of the river water, lake water and sea water, reservoir water, well water and city tap water as water source city such as little to distinguish the water filter, remove the sand in the water, suspended solids, algae and organic matter, etc.

4。 Agriculture - - - Especially suitable for high flow, good water content of impurities, such as irrigation and water conservancy irrigation, parks and golf courses on the lawn irrigation, etc. 5. Food processing industrial water, pulp and paper industry, the industrial circulating water treatment of power plants, industrial and pretreatment of pure water for medical use. Industrial production water recycling, industrial wastewater treatment.

6。 Aquaculture industry, swimming and water park.

5, shallow sand filter operation parameter 1

water turbidity, water quality parameters: < 50 ftu, effluent turbidity: < 5 ftu.

2, working environment parameters (1) working temperature: 5 - 60℃（ Special temperature can be customized) ；

2. Working pressure: 0 or less. 6MPa；

3. Import and export pressure difference: 0. 1 - 0. 15MPa。

3, operation parameters

1) works: pressure type;

(2) operation modes: flow from top to bottom;

3. Filtration velocity, 40 m/h ( Up to 60 m/h) ；

4. Backwashing water: & lt; 3米;

5. Backwashing duration: 2 - 3min。

4, body material: stainless steel, carbon steel rubber lining or coating epoxy resin.

5, work mode: manual and automatic.