Sand washing wastewater treatment equipment 1

1、 Add 46 # anti-wear hydraulic oil to the hydraulic oil tank, and fill the oil level: when the oil cylinder is full, return to the stop state and the oil window of the oil station is halfway. minus

Add 40 # or 50 # mechanical oil to half of the oil window at room temperature. After using the new machine for a month, it is necessary to replace the hydraulic oil and clean the oil tank

Replace it every six months thereafter.

2、 Connect the three-phase four wire power supply, the motor rotates clockwise, and the rest are connected according to the electrical cabinet wiring diagram.

3、 1. Connect and tighten the oil pipe, and retract it (connect according to the markings, and tighten the sealing ring).

2. Connect the proximity switch, travel switch, and pressure gauge, and insert them into the designated socket according to the wiring diagram.

3. The red pointer of the pressure gauge is the upper limit rated pressure pointer (the rated pressure is generally 15-18MPa), and the green pointer is the lower limit supplementary pressure pointer

The black pointer (usually 3MPa lower than the rated pressure) is the pressure display pointer.

4、 Install the filter cloth, which is made up of two pieces sewn together. Fold the single piece into a roll and thread it through the feeding hole of the filter plate, then level it flat and wrinkle free

Wrinkled and tied onto the filter plate.

5、 Turn on the power and the power indicator light will be on. Before starting up, check if the number of filter plates is insufficient. The filter plates should be parallel to the thrust plate and perpendicular to the main beam,

After confirming that the filter cloth is flat and wrinkle free, activate the compression button. The compression indicator light will turn on, the motor will rotate, and the hydraulic power will push the compression

The clamping plate moves forward, and when it reaches the clamping position, the oil pressure rises, and the black needle of the electric contact pressure gauge rises to reach the rated pressure (red pointer). The motor automatically

Stop working when the power is turned off and the pressure indicator light is on (if the rated pressure cannot be reached, the high-pressure relief valve can be adjusted clockwise). When the pressure gauge is black

When the pointer drops to the green pointer, the motor automatically starts to replenish pressure to the rated pressure and then automatically stops, entering the pressure holding state again.

6、 The filter press can only be fed when it enters the pressure holding state. At this time, open the feeding valve and start the feeding pump (the feeding pipe must be equipped with 0-1.6MPa)

The pressure gauge and reflux valve typically have a filtration pressure between 0.5-0.6 MPa. When the filtration pressure is too high, open the reflux valve to control it

Pressure must not exceed the allowable pressure. Leakage caused by the capillary pores of the filter cloth medium during filtration is normal.

7、 When the filtration pressure reaches the allowable level and the liquid outlet or water nozzle is rarely close to the outlet, the filter chamber is full. At this time, stop the pump and press the return button

Button, the compression plate begins to retract and automatically stops when it reaches the limit switch.

8、 After the return is completed, the automatic plate pulling type starts to pick up the plates, and the manual type manually pulls out the filter plates one by one to unload. When unloading, the materials should be cleaned thoroughly

(Special residue on the sealing surface of the filter cloth), the filter plates should be arranged neatly and parallel, and after unloading, they should be compressed and enter the next filtration cycle.

9、 If it is a diaphragm press type, after the feeding is completed, close the feeding valve and then turn on the secondary pressure pump or air pump. The maximum secondary pressure should not exceed

After passing 1.2MPa, select the secondary pressurization (holding pressure) time according to the material situation, discharge the secondary pressurization medium after meeting the requirements, and then return it

When returning, the secondary pressurized medium must be completely drained.