Concrete mixing station common faults and troubleshooting

Concrete mixing station common faults and troubleshooting (a)

Powder conveying slow Symptom: screw conveyor feeding is very slow, feeding time is over two minutes, while the normal feed between 20-30 seconds. Analysis: The main influencing factors are poor Powder container cutting and screw conveyor damage. Poor material manifestation under powder has powder bagging, powder tank at the discharge port material caking, butterfly valve opening becomes too small, lack of powder tank materials. The damage is mainly helical screw conveyor blade deformation, not the normal delivery. Process: 1, open air blowing arch breaker. 2. Check the opening of the powder tank discharge butterfly valve, and butterfly valve in the fully open position. 3, check the tank at the outlet of the powder material is clumping. 4. Check screw blade deformation, such as the removal of distortion correction or replacement.

Concrete mixing station Common Faults and exclusion method (b)

Belt deviation Symptom: Conveyor belt during no-load or load operation, appear to the side of the deviation or run for a while to the left and the right one will run phenomenon, caused by leakage of material, equipment, non-normal wear and damage, reduced productivity, and It will affect the normal operation of the entire device Analysis: Tape suffered external forces in zhenghao jzc350 portable concrete mixer spare parts the tape width direction is not zero or perpendicular to the tensile stress on the tape width direction caused by uneven. Due to many factors led to the belt run, it should conveyor design, manufacture, installation, use and maintenance and other areas to tackle the tape deviation, such as the tightness of the tape on both sides is not the same level of tape on both sides is not Like, roller brackets and other means is not perpendicular to the direction of the cross section of the tape will cause mounting upper belt deviation. Process: (1) adjusting the tension Institutions Act Tape is running, if both deviation to the same side in a no-load and overload conditions, indicating the tightness of the tape on both sides is not the same, the appropriate tightening of the tensioning device in the opposite direction; if the tape wandering around with no fixed direction , then the tape slack tensioning mechanism should be adjusted. (2) Adjust the roll method If the belt run at the drum, the drum installation instructions owe level, axial movement of the drum, or the front end of the drum end in the post. In this case, the correction level degree and parallel degree drum. (3) Adjust the roller bracket (or rack) Act If the total deviation to the side of the tape at no load, it should run the laterality of the roller bracket advancing along the tape running direction 1-2cm, or the other side of the roller holder (or frame) as appropriate heightening . (4) Clear sticky law If the roller, sticky roller on local materials, will make the department's diameter increases, leading to where the tape tension increases, resulting in the deviation. Adhesion material should be cleared up. (5) If the tape does not adjust gravimetric deviation at no load, while overloading total deviation to the side, indicating that the tape has emerged partial load. Receiving hopper should be adjusted or the position of the belt conveyor for the tape are set out, in order to prevent deviation. (6) Adjust Tape Act If the tape edges badly worn or tape seams parallel sides will pull tape is inconsistent. Should be re-trim or replace tape. (7) The installation of offset roller method If you install several groups of self-aligning roller (flat roll or grooved rollers) on the conveyor, that is able to automatically correct the deviation phenomenon tape. For example: When the belt run friction with one side of the small block roller appears, malaysia concrete batching plant for sale should make the forward side of the bracket along the running direction of the tape, the other side of that is moving relatively backward, this time the tape will be moved < toward the block moving roller side until the return to normal position. (8) Install the stopper roller method If the tape total deviation to the side, can be mounted on a rack laterality run limit vertical roll; so, on the one hand allows the tape to force forced reset, on the other hand vertical roller can reduce run laterality tape tension, so move to the other side of the tape.

Concrete mixing station Common Faults and exclusion method (c)

Aggregate feed door card stock Symptom: batching station pebble stones feed pneumatic door was jammed open. Analysis: pneumatic dosing station has a large gap factory direct mobile concrete mixer for sale between the door and the door a small gap door, large gaps door the gap is greater than the general gravel particle size, and thus will not appear card stock. Small gaps door the gap is generally 5 ~ 10mm, 10mm or less when stones card into the gap, it is difficult to pneumatic door stuck. Batching station after a period of time, aggregate spout wear, when the gap when worn to 20 ~ 30mm, then snaps into the larger stones into the gap in the door in the process, it is easy to get stuck stones (wedge force)