The importance of blowing regulation in Vertical Vacuum Disc Filters.
The importance of blowing regulation in Vertical Vacuum Disc Filters.
The filter operating cycle ends with the cake unloading, which is done by means of a “blow” of compressed air, in a short period of time,
with an approximate pressure of 1.0 to 2.0 bar.
The blow occurs with the magnetic signal generated by the approximation between the sensor and the indicator bumps in the center of each filtrate tube.
The correct adjustment of the moment of blowing causes the detachment of the cake to occur in the correct position in relation to the deflector plate and the discharge box, also preventing the filtering element from touching the edge of the box or the deflector plate at the time of discharge.
The correct adjustment of the blowing, maintains the synchronization of the sensor and the blowing collar, which must be done, in a BRASFELT filter of 8'10", according to the following steps:
1st step (FIGURE 1) - Assemble the position collar on the drive hub (in some models the position indicators are fixed directly on the main
shaft transition hub), according to the positioning indicated in the figures below.
2nd step (FIGURE 2) - Assemble the sensor and sensors fixation support according to the positioning indicated in the figures below.
