Concrete batching plant the inevitable 3 failure and treatment method

1. mixing shaft "stuffy"

The failed performance mixer when mixing mortar, stirring shaft rotation difficult or even stopped.

1.1 analysis of possible causes are: severe overloading, material hoop shafts due to human mistake secondary material; weighing no; mixing blade or blade with a large gap between the tank wall and entering the block voltage too low; mixing parameter is set incorrectly.

1.2 processing belt type concrete batching plant fault method is: if serious overload, material hoop axis, should adjustment mixing capacity, timely cleanup solidification of mortar; if human errors operation caused II times feeding, should clear extra material and by process operation; if weighing no, requirements operation personnel again standard scales; if mixing leaves or side leaves and tank within wall between has foreign body card delay, should adjustment leaves and lining Board of clearance, makes of not is greater than 5 mm, and timely cleanup foreign body; if voltage low, to again check line voltage; if parameter set errors, Should carefully check the ingredient data and make timely corrections.

2. host discharge gate cannot be opened

The failure to automatically work when containerized concrete batching plant, hosts an unloading door will not open, discharging led is not lit when the mixing is complete.

2.1 analysis of possible causes are: the discharge between the door and the seal plate a foreign body or aggregate; gaspath system of low pressure, leakage or oil mist in the cylinder damage; electromagnetic valve and relay wiring between off, virtual or relay damage solenoid valve core or valve coil burnt delay time relay is damaged, resulting in no input signal PLC.

2.2 processing concrete mixing station fault method is: If unloading material door and sealed Board Zhijian has foreign body or product material, should cleanup foreign body, and product material and flush unloading material door; if gas road system pressure insufficient, and cylinder within leak or oil fog device damaged, should check oil fog device, and joint, and cylinder, parts whether damaged; if electromagnetic valve and following electrical Zhijian of wiring off, and virtual received or following electrical damaged, should check following electrical touch points output and the wiring, necessary Shi replaced; if electromagnetic valve coil burn loss or valve core card delay, should replaced electromagnetic valve; if time following electrical damaged, It should be replaced.

3. conveying belt deviation

The faults for 3 cases: one is the conveyor belt in the no-load and load cases to the same lateral deviation, namely conveyor center line lateral deviation, one side of the conveyor belt less biased material; the second is left and right of the conveyor belt deviation and no fixed direction; the third is the conveyor belt in the middle of the conveyor belt conveyor deviation.

3.1 analysis of possible causes are: the basic inequality, about sticking, slotted flat idler roll imbalance, as well as active and passive roller adjusting imbalances would cause the conveyor belt deviation. If the conveyor belt in the no-load and load cases to the same lateral deviation, as conveyor belts on either side of the tightness is not described or rack inside. At this point, should first be rack based leveling, clear material sticking on the roller, adjust the tensioner screw or weight. If the conveyor belt running around without a fixed direction, then the conveyor belt loose, adjust the tensioner. If the conveyor belt in the middle of conveyor deviation can be corrected by adjusting the roller position, as shown in Figure 1.

3.2 adjustment: If the conveyor belt to one side, the side rollers should be lateral direction moves the conveyor belt, you may also use the rollers move on the other side (or idler bracket on the other side to the appropriate height). Return rollers and bearing rollers adjusted the same way. Long conveyor belt conveying system, adjusting the rollers is very effective.

Drum tuning is an important part of conveying belt deviation adjustment, the installation location must be perpendicular to the conveyor of the drum loading direction center line, otherwise certain deviation occurs. As shown in Figure 2, if the conveyor belt to the right deviation, bearing to the right of the former should be moved (or move after the left side bearing); if the conveyor belt to the deviation on the left side of the drum, you should move the bearing seat to the left of (or right bearing seat backward). Such as the conveyor belt driven drum running too, and drive roll adjustment method is exactly the opposite.

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