Concrete batching plant common faults

1. The instrument shows is not accurate

for weighing of ready mixed concrete batching plant, batching control instrument display value is consistent with the set value, but the actual value of the materials mentioned in the display value is greater or less than numbers on instrument. The cause of the fault may be weighing systems were affected by external force; the sensor drift error cause a change in the space between zero and weighing; Damage of sensors.

2. Batching accuracy out-of-tolerance

in the process of ingredients, the ingredients control instrument shows weighing value accurately, but the ingredients of the weighing values do not tally with the set value, while batching accuracy of mobile concrete batching plant is beyond the scope allowed. The reasons for such failure includes: fast and slow ingredients of setting is not appropriate; Feed flow volatility, resulting in a change of impulse; Materials dry, humidity change is big; Tolerance range of set value is too large; Super bad check the delay time set too short; Automatic compensation and out-of-tolerance instrument parameters check set unreasonable; Digital filter and the ingredients of the time parameter value is not reasonable.

Above for the cause of the problem should take the following measures: set at the beginning of impulse as far as possible close to the actual value; Appropriate reduce ingredients flow. Ensure material dry, humidity equilibrium; Will allow deviation value is set to no more than batching accuracy range; Set the out-of-tolerance check delay time is greater than 2.5 s, the instrument parameters automatic compensation and out-of-tolerance inspection shall be set to "1";Setting appropriate parameter values in the ingredients.