Aquaculture coarse screen 300 microns auto self cleaning backwash water filter

Aquaculture screen water filter

Brush Water Filter S tructure and working p rinciple

Automatic brush away filter is composed of the drive mechanism, the control circuit (including the pressure switch), filter components, cleaning device , connecting flanges and other major component parts. It clean s sewage b y the drive motor and the electric valve automatically, the operation mode is automatic operation ( option: manual operation), with timing control or pressure difference control. Its automated part is controlled by reliable PLC programmable controller.

W ater enters into the filter, the mechanical impurities are intercepted .When the impurities accumulate for a period, reaches 0.05MPa, then the differential pressure switch will send signal, while the PLC command is issued, transmission motor starts, the drain valve opens, the impurities deposited on the filter is brush ed away, and drain out. T he whole process is without personnel, with out downtime . Besides, the device also has the function of tim ing and manual cleaning to ensure that the outlet water is safe under any circumstances.

Brush Water Filter Two types of cleaning method

Automatic control: there are two types:timing control and pressure difference. Set the filtration time on the filter timer, when it reaches the setting time, the brush will start cleaning sewage,discharge time is also set by timer; while the system pressure control system with real-time user-defined pressure compared when the system pressure reaches the set pressure difference, the filter will start cleaning sewage, sewage discharge time set by the timer.The whole system returns to its initial state, prepare for the next filtration step.

Manual control : Press the manual button on the control panel, filters will start cleaning.

1.Filter precision from 100um to 3500um,big filter area,high sewage carrying capacity,customized product.

2.Simple turn-of-a-handle cleaning of the filter screen,adjust the parameter of the automatic cleaning system.Automatic cleaning.

3.Has motor overload protection, which can effectively protect the motor.

4. Eliminates the need for turning off the water and extracting the filter screen for rinsing.No interruption of the process water flow during cleaning,Low pressure loss:less than 1%.

5.Easy to maintenance,installation and disassemble.

6.Flange connections to the user’s pipeline, national standard flange, versatility.

1. Treatment effectiveness

Filter precision:100-3000um(or customized)

Filtration efficiency: 99%;

Initial pressure loss: ≤0.015Mpa.

2. Inlet Water Quality

Working pressure: 1.0 / 1.6 / 2.5Mpa;

System pressure: > 0.25Mpa;

Working temperature: 1 ℃ -90 ℃;

Working environment temperature: 1 ℃ -50 ℃;

Relative Humidity: <95%.

3. Operating parameters

Mean time between failures:> 60,000 hours;

Design life: 20 years for shell ; 8 years for electrical parts.

Power: 0.2-0.6kw

Operating voltage: 220V ~ 380V ± 10%, 3-phase, 50 / 60Hz;

Safety insulation voltage: 5000V.

4. Mesh to micron conversion chart

Micron(um)	100	120	150	200	400	800	1500	3000
mesh	150	120	100	80	40	20	10	5

Model	Inlet&outlet	Max flow rate	Dimension			Drain	Motor
	mm	T/H	L	φ	L1	mm	Kw/r/min
SLQ-2Y	50	19	600	159	300	25	0.18/1400
SLQ-3Y	80	50	600	159	300	25	0.18/1400
SLQ-4Y	100	80	700	159	300	40	0.18/1400
SLQ-5Y	125	125	750	219	350	40	0.18/1400
SLQ6Y	150	180	800	275	450	50	0.18/1400
SLQ-8Y	200	320	850	325	525	50	0.18/1400
SLQ-10Y	250	490	900	377	650	50	0.18/1400
SLQ-12Y	300	710	950	426	700	65	0.18/1400
SLQ-14Y	350	970	1170	478	820	65	0.18/1400

Brush Water Filter -“F” type parameters

Model	Inlet&outlet	Max flow rate	Dimension			Drain	Motor
	mm	T/H	L	φ	L1	mm	Kw/r/min
SLQ-2F	50	19	300	159	225	25	0.18/1400
SLQ-3F	80	50	300	159	270	25	0.18/1400
SLQ-4F	100	80	300	159	300	40	0.18/1400
SLQ-5L	125	125	350	219	365	40	0.18/1400
SLQ6F	150	180	600	273	450	50	0.18/1400
SLQ-8F	200	320	700	325	560	50	0.18/1400
SLQ-10F	250	490	700	377	700	50	0.18/1400
SLQ-12F	300	710	1000	426	800	65	0.18/1400
SLQ-14F	350	970	1000	478	940	65	0.18/1400

Brush Water Filter -“L” type parameters

Model	Inlet&outlet	Max flow rate	Dimension			Drain	Motor
	mm	T/H	L	φ	L1	mm	Kw/r/min
SLQ-2L	50	19	300	159	250	25	0.18/1400
SLQ-3L	80	50	300	159	250	25	0.18/1400
SLQ-4L	100	80	300	159	250	40	0.18/1400
SLQ-5L	125	125	350	219	275	40	0.18/1400
SLQ6L	150	180	450	273	325	50	0.18/1400
SLQ-8L	200	320	525	325	360	50	0.18/1400
SLQ-10L	250	490	650	377	425	50	0.18/1400
SLQ-12L	300	710	700	426	450	65	0.18/1400
SLQ-14L	350	970	820	478	520	65	0.18/1400

The video of working principle : https://www.youtube.com/watch?v=ZgNtreTv8jc

Brush Water Filter Installation Points for attention

1. The check valve must be installed to avoid back pressure or backwater phenomenon, caused by i nward deformation of filter screen .

2. For the operating pressure above 0.8MPa or more, the gate valve must be installed on the sewage lines , it will reduce the pressure loss, and the impact after the drainage . ( you may ask for s pecific a dvisory from supplier s)

3. P rohibit the sudden pressure relief . For example, the normal working pressure is 1.3MPa, shut down suddenly ,and open th e outlet piping manifold pressure relief valve, it will have a huge opening moments of pressure will cause filter damage.

4. Make sure that the filter works within the normal operating range, banned from over pressure, over flow rate .

5. When the equipment alarms, if you can not handle at once, you should immediately open the bypass valve. Otherwise, the filter can not hold pressure ,and it also affect production.

6. F or the filter with control box, you must ensure the continuous power supply for control box . Otherwise, i t will cause filter clogging, the system hold pressure, impact production, and even cause filter damage. Re-transmission may occur because of filter clogging motor tripping the alarm. Power interruption is recommended to open the bypass valve, close the filter inlet and outlet valves and control box power switch. Filter restart when power on.

How to install Cleaning brush filter

1. Equipment can not be installed in the negative pressure zone.

2. N oted the direction of the water flow .

3. By -pass conduit is preferably provided so that the normal operation of the filter for cleaning or failure does not affect the system;

4. P ipeline should be floated over 5m ,supported by steel or concrete barrier.

5. When t he filter installed with other water processor equipment , this filter should be installed before the inlet.

How to choose the suitable model

Please clarify below parameter:

1.Water flow rate

2.Chemical characteristic of fluid

3.SS of fluid

4.Filter precision

5.Pipe pressure

6.Working pressure

7.Direction of flow

8.Drainage way

Brush Water Filter Maintenance

1. After install the brushaway filter , the pipeline should be cleaned by banging pipes, to remove the welding slag and other debris ,to prevent damage caused by slag debris .Wash the filter after initial running for a week.

2.R untime system for the first time, you should first open the supply valve, until the system is filled with water, and then open the valve, in order to facilitate the removal of impurities in the pipeline, to prevent access to the coil;

3.T imely sewage drain (especially in summer) according to the system set pressure and concentration ratio .

4 .I n the dry state ,it’s prohibit to open device for a long time . During downtime or seasonal shutdown, it should be wet protected ,in avoid of pipeline corrosion.

Control box                Pressure gauge                                                      Filter screen                                    Pressure difference control

Geared-motor                        Bristle brush                                  Coupling                                      Drainage valve

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