Anti-blocking screen asphalt batch mix plant with Italy Oli motor and 80T hot aggregate silo
Aggregate weighing
A. Hot aggregate bins.
5 discharging doors are installed under hot aggregate bins. Every door is controlled with 2 air-cylinders. Weighing precision is improved through secondary weighing.
B. Weighing hopper
Aggregate is discharged from hot storage bins to weighing hopper. Weighing hopper is hanged to steel frame through tensile sensors, which carry signals to control system.
The emptying door of weighing hopper is promoted by air-cylinders. Door shafts need no lubrication, but check them every 6 months for abrasion and replace them if necessary.
C. Dustproof cover
There is a dustproof cover between weighing hopper, hot storage bins and mixer. Joint has a soft airproof part. The weighing hopper should not bump with cover.
There is a exhaust pipe at the cover, which allows air to flow freely. When weighing hopper discharges aggregate to mixer, the inner air will expel, so as to avoid hopper to shake. Check this exhaust pipe for block every 3 months.
D. Sampling window
Open the sampling window at upper cover joint, get sample from each hot bin.
E. Tensile sensor
3 tensile sensors hang the weighing hopper. These sensors need no maintenance and adjustment, but notice the following items to guarantee its life.
When carrying on weld near weighing hopper weigh barrel, earth the barrel to avoid current enters sensor.
When carrying on maintenance, and have to remove weigh hopper or influence sensor, ensure reinstallation equals to former standard, and on one level, screw down all locknuts
Check weigh hopper for fine stone or dunghill that influence hopper moving.
| No. | Name | Quantity | Remark |
| A | Supply System Of Cold Aggregate Powder | ||
| 1 | 12m3 integrated type Cold Aggregate Powder Hopper (two with wall vibrator) | 5 sets | with empty hopper alarm device |
| 2 | Strap Feeder | 5 sets | frequency converter |
| 3 | Collective Belt Conveyer | 1 set | |
| 4 | Slope belt conveyer | 1 set | |
| B | Dryer and burner for aggregate | ||
| 1 | Dryer (friction driven) | 1set | Stainless steel cover outside for heat preservation |
| 2 | Burner | 1set | Italia EB |
| 3 | 50T diesel tank | 1 pc | |
| C | Hot Material Hoist | ||
| 1 | Stone Material Hoist | 1set | |
| D | Mixing tower system | ||
| 1 | Twin-shaft | 1 set | technology, NSK bearing |
| 2 | Hot aggregate bin(5 bins) | 1 set | Color steel cover for heat preservation, continuous type indicator |
| 3 | Aggregate metering | 1 set | Toledo sensor |
| 4 | Filler metering | 1 set | Toledo sensor |
| 5 | Asphalt metering | 1 set | Toledo sensor |
| 6 | Asphalt metering spraying pump | 1 set | |
| 7 | Screw conveyor | 1 set | Italia WAM |
| 8 | Mixing tank(double reducers drive) | 1 set | |
| 9 | Main Frame Equipped With Platform, Ladder, Handrail And Guard Railing | 1 set | |
| E | Mineral and waste powder storage and conveying system | ||
| 1 | Mineral powder storage bin(50 m3) | 1set | With WAM arc-breaker and overflow acousto-optic alarm |
| 2 | Reclaimed powder storage bin(50m3) | 1 set | With arc-breaker |
| 3 | Waste filler hoister | 1 set | |
| 4 | Screw conveyor | 2 sets | From waste filler bin to filler hoister |
| 5 | Screw conveyor | 2 sets | For filler metering, Italia WAM |
| 6 | Screw conveyor | 1 set | Waste filler discharging |
| 7 | Butterfly valve | 3 sets | Italy WAM |
| F | Dust Collector System | ||
| 1 | Primary volute casing collector | 1set | |
| 2 | Secondary Bag Collector(air back flush ) | 1set | Nomex bag, air back flushing |
| 3 | Draught Fan, Smoke Path and Chimney | 1set | ABB soft starter |
| 4 | Screw conveyor
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