What are the common problems with belt filter presses?

　　Belt filter press using a special filter media, the filter object to exert a certain pressure, making the liquid dialysis out of a mechanical device, is a good solid-liquid separation equipment, belt filter press in the daily use of which will encounter abnormal problems? What are the solutions to these problems?

　　First, the solid content of the filter cake decreased

　　1、Filter belt clogging. Filter belt clogging, can not filter out the water, so that the solid content is reduced, you should stop running in time, wash the belt.

　　2、Belt speed is too big. Belt speed is too large, the mud cake becomes thin, resulting in a decrease in solid content, should promptly reduce the belt speed, generally ensure that the thickness of the mud cake is 5-lOmm.

　　3, the belt tension is too small. At this time can not guarantee enough shear force and pressing force, so that the solid content is reduced.

　　Second, the solids recovery rate is reduced

　　1, the tension is too large, resulting in extrusion zone run, and make part of the sludge through the filter belt, with the filtrate loss, should be promptly reduced tension.

　　2, the belt speed is too large, resulting in extrusion area running material, should be appropriate to reduce the belt speed.

　　Filter belt slipping

　　1, into the mud overload, should reduce the load.

　　2、Filter belt tension is too small, should increase the tension.

　　3、Rolling cylinder is damaged, should be replaced or repaired in time.

　　Fourth, the filter belt is seriously clogged

　　1、Filter belt tension is too large, should be appropriate to reduce the tension.

　　2、Flushing is not complete, should increase the flushing time or flushing water pressure.

　　3, into the mud sand content is too large, it is also easy to plug the filter cloth, should strengthen the sewage pretreatment system operation control.

　　4, dosing overdose. Viscosity increases, PAM dosing overdose, often clogging the filter cloth, in addition, fully dissolved PAM, also easy to clog the filter belt.

　　Fifth, the filter belt will often run off

　　1、The deviation correction device is not sensitive, it should be checked and repaired.

　　2, the relative position between the roller cylinder is not balanced, should be checked and adjusted.

　　3、The roller barrel is partially damaged or excessively worn, it should be checked and replaced.

　　4, into the mud is not uniform, uneven spread on the filter belt, should adjust the mud inlet, repair or replace the mud leveling device.