Color-user-defined 120μm film thickness asphalt batching plant with 37KW windlass winch system
Finished product hoppers/ready product bin introduction
A. Operation methods
The asphalt mixture is discharged from mixer to trolley, which has 4 wheels and supported by rail. The trolley empties mixture to finished product hoppers when it reaches a presetted position along the rail.
B. Finished product hopper
The trolley empties mixture to several hoppers with different capacity. On the underside cone of finished product hopper, there is hot oil pipeline for purpose of heat-preservation. Every hopper has heat insulation, electrothermal component installed on discharging door.
Commonly, it is suggested to discharge 500 kg material every 2 hours to avoid difficulty in dealing with it.
C. Waste hopper
Waste hopper is located before main hoppers. Its capacity is about 2 times the one of mixer.
D. Cover
Electric gliding coping can preserve heat. Once operator choose one hopper to discharge material, its coping will open before trolley moving from under mixer.
E. Protector (limit switch)
Mechatronics lever mode limit switch, which can avoid offside due to wrong operating, is upon rail.
When trolley contacts limit switch, its control circuit breaks off and trolley stops.
F. Windlass buildup
Windlass is constituted of electromotor, reducer, brake, and roller. This set is installed on the base of finished product hopper. Roller is installed on supporting frame. Refer to manufacturer specification for details about reducer lubrication.
G. Delivery trolley
. Frequency conversion controller on console controls the trolley position. Approaching sensor controls the discharging position for each hopper, namely, through measuring the position change of trolley relativing to presetted point on rail.
. Emptying
Before trolley reaching presetted-discharging point, operator has presetted the discharging position. Along with trolley tracking forward and contacting bumping-block, air cylinder turns over the bumping-block. The trolley door is pushed backward. Whit trolley moving on, its emptying door opens and mixture discharges. After emptying, the tensioning spring will pull back the door.
. Spring tension
After trolley installed, tensioning springs, which used for promoting discharging door must be adjusted correctly. When empty trolley stops tipsily on rail, adjust tensioning springs to enable them to shut off the door.
Notice
Tensioning bolts may need to be readjusted in use.
H. Braking system
. Running security for the trolley depends on brake. During running, hydraulic handspike prop up lever and two tiles hugged on brake wheel; when trolley stops, the handspike falls back, and tiles hug brake wheel tightly under spring pressure.
. During adjusting braker, ensure the handspike back-journey having 10mm space and check it often, or, the braker will not act well. Tightening the spring can increase braking force; adjust this force to keep loaded-trolley ceasing.
Notice
If spring is over tensioned, the agile operation of hydraulic handspike will be influenced.
| Finished product bin Maintenance | |
| 1 | Keep trolley clean, especially for space around emptying door. Use thinner to rinse trolley after every day using, and rinse discharging doors of finished product hoppers periodically to enable them to run smoothly. |
| 2 | Keep sufficient tension for trolley steel wires, not allow them to bump with rail or be felted with asphalt. |
| 3 | Maintain proper braking moment according to specification of hydraulic braker provided by manufacturer. |
| 4 | Check all mechanical limit switches for security and level position. Wipe exposed parts with grease. Check mechatronics levers and accessory of limit switch for security every week. |
| 5 | Lubricate roller bearings, trolley wheel bearings, hydraulic braking joints and discharging door bearings every week. |
| 6 | Check bearings and wheels of trolley gliding door for moving. Lubricate them if necessary. |
| 7 | Check oil level of windlass gearbox every week, and add to highest level if necessary. Exchange new oil every 6 months, refer to manual for operation detail. |
| 8 | Check all steel wires with eyes every week. Replace those abraded and damaged wires immediately, and check wire binder for tension. |
| 9 | Check trolley for running freedom with eyes. |
| 10 | Keep rail clean. |
| 11 | Keep gliding door of finished product hoppers agile. |
