Industrial filter, automatic sewage filter core using high strength wedge filter, through pressure difference control, timing control automatic cleaning filter core. When the impurities in the filter accumulate on the surface of the filter element, the pressure difference between the inlet and outlet increases to the set value, and the backwash mechanism is driven. When backwash suction dish and filter imports are pair, the drain valve is opened, the system pressure drainage, chuck and filter the inside a relative pressure below the filter of the lateral pressure of negative pressure zone, forcing some net circulating water from the inside filter lateral flow filter, adsorption on the inner wall of the filter in the impurity particles with flow into 穣 disc and is discharged from the drain valve. The specially designed screen allows the filter element to have a jet effect inside, and any impurities will be washed away from the smooth inner wall. When the pressure difference between the inlet and outlet of the filter returns to normal or the timer is set at the end of time, the material will flow continuously in the whole process and the reverse washing will consume less water, realizing the continuous and automatic production.
Manual control
Rotate the manual/automatic selection switch to the manual position, the motor and the hydraulic control valve will be connected to the power supply, and the hydraulic control valve will be opened to start the sewage discharge. Select the switch to rotate to the automatic position to enter the automatic state.
Manual control state is a means to check whether the motor and hydraulic control valve can work normally, if the manual control state can not normal sewage automatic control state will not work normally.
The automatic control
Rotate the manual/automatic selection switch to the automatic position and first set the filter time and the drain time timer. The lower row of the timer digital tube display set value, the upper row of digital tube display time value.
Timer setting method: press the bit selection key, the first digital tube flashing, with the increase key to adjust the value, adjust the key again press the bit selection key, the second digital tube flashing, with the increase key to adjust the value, and so on. Set a good time, the digital tube continues to blink for 8 seconds, 8 seconds after the value into memory, and power is not lost. After adjusting the value, press the start button to start the timer. If the machine power off, the next power on, the timer automatically started, according to the set time for timing.
Filter time is divided into units up to 9999 minutes; The discharge time is measured in seconds, with a maximum time of 99.99 seconds. Machine electricity, with automatic switch into the state, the first filtering, filtering time timer timing starts, differential pressure switch at the same time also to set the actual pressure difference and pressure difference comparison, if the set time filtering, and pressure difference is not that the machine is open the drain valve of washing drainage, filtration time stop time, discharge time start the time; When the discharge time is up, close the discharge valve, stop cleaning the discharge, stop timing of the discharge time, start timing of the filter time, enter the next cycle, if the set filter time is not up, and the pressure difference is up, the machine will open the drain valve to clean the discharge, stop timing of the filter time, start timing of the discharge time; When the discharge time is up, close the discharge valve, stop cleaning the discharge, stop the discharge time, start the filter time, and so on and so on.
