Sea for C60S0R series PLC application in the plate and frame type filter unit renovation design - Industrial control -

A, plate and frame filter because of its simple structure, big filter area, in the chemical industry, environmental protection is a kind of widely used suspension filtration equipment.

figure 1: plate and frame type filter unit

2, plate and frame filter working principle: the first step: press the button, the pump starts, high pressure solenoid valve is opened, the pressure solenoid valve is opened, the hydraulic oil tank through pump - - - - - - - High pressure solenoid valve - - - - - - - Pressure solenoid valve in the top oil cylinder, cylinder push pieces of filter plate before compression, through the electric contact pressure gauge testing pressure reaches the upper limit set, close the pressure solenoid valve, high pressure solenoid valve, close the oil pump, enter the holding state.

with the filter out and pressure in the filtrate liquid cylinder in a slow leak under high pressure, the pressure on the filter plate down slowly, to set lower limit start automatically when the pump, high pressure solenoid valve is opened, the pressure solenoid valve is opened, the hydraulic oil tank through pump - - - - - - - High pressure solenoid valve - - - - - - - Pressure solenoid valve in the top oil cylinder, cylinder push pieces of filter plate before compression, pressure reaches the upper limit set, close the compaction pressure valve, high pressure solenoid valve, close the oil pump, enter the holding state.

work has been testing oil pressure, and take related action. Filter press release after the completion of work, the oil pump start-up, low pressure solenoid valve is opened, loosen the solenoid valve is opened, the hydraulic oil tank through pump - - - - - - - Low pressure solenoid valve - - - - - - - Loosen solenoid valve into the back cylinder and back oil cylinder to loosen pieces of filter plate.

press the stop button, the unit stops working.

figure 2: plate and frame filter control cabinet before modification

3, plate and frame filter to save area and cost, generally made in many situations, a few bedplate frame filter public a gas station, work frequent movements with electrical components, electrical circuit is complex, high failure rate. Plan for ammonia workshop area between 7 plate and frame filter electric reform.

4, comprehensive consider to choose the sea C60S0R for PLC as controller, simplified electric circuitry, failure rate greatly reduced, and increased the fault alarm, automatic pump wheel when the work week. To guarantee the efficient production.

figure 3: the sea for PLC reformed plate and frame filter control cabinet

figure 4: the sea for PLC controller C60S0R

work for PLC reliable, scientific and reasonable programming environment, the simulation is very convenient, is the old equipment modification and new equipment to realize automation of a weapon.

appendix: control program ( Section)

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