CRUSHING, SCREENING AND FEEDING / TRUCK LOADING EQUIPMENT
Automatic filling devices for dust-free loading
Kopar's truck loading equipment ensures dust-free and safe loading of material stored in silos onto vehicles. Two solutions are available: a closed dry discharge system for tankers and container loading, and a wet discharge system for open-bed transport. Both are fully automated, with the driver independently managing the loading via remote control.
Two solutions, the same result: dust-free loading
Finely divided materials are typically stored in silos, from which they are further transported for use elsewhere. Most materials stored in silos are dry and therefore dusty. For occupational health, safety, and environmental reasons, loading must be dust-free.
Kopar's automatic filling systems solve this challenge. The appropriate solution is chosen depending on whether the material is loaded into a closed tanker or container, or onto an open truck bed. Both systems can be integrated with the plant's PLC or DCS automation.
Dry disconnection system: a closed solution for tankers
With a dry discharge system, material is loaded from the silo into a tanker or a closed container. The closed system allows for completely dust-free handling, which guarantees user safety.
The system typically consists of:
- fluidized silo bottom
- manual service slide gate
- pneumatic knife gate valve
- rotary feeder
- motor-driven flexible loading chute/loading spout/bellows
The entire system has been designed by Kopar. Dust extraction from the loading chute is directed straight into the EMJET silo filter, so the dry unloading system does not require a separate filter.
Wet dust suppression system: wetting removes dust
The wet discharge system is suitable for situations where material is discharged onto an open truck bed. Loading very dry material, such as fly ash, onto an open truck bed typically causes significant dust emissions. In wet discharge, the moisture content of the final product is adjusted so that the material does not produce dust. This way, dust emissions can be reduced to a minimum or eliminated entirely.
In the system, the material is fed through a wetting screw. The wetting screw is a two-threaded paddle mixer equipped with an adjustable water injection system. The entire setup also includes a fluidised silo base and a rotary feeder, which are also manufactured by Kopar.
Suitable usage cases
Dry unloading system
- All ashes: bottom ash, fly ash, filter ash and dust
- Minerals such as calcite, chalk, and magnesite
- Fine end products like potato starch
Wet unloading system
- Energy industry: fly ash wetting during silo unloading
- Chemical and Mineral Industries: Dampening of Fine, Dry Materials
Technical specifications
| Dry unloading system | Wet unloading system | |
| Capacity (m³/h) | 75–100 | 75–100 |
| Operating Temperature (ambient) | -40/+40 °C | -40/+40 °C |
| Travel length | 1500 or 3600 mm | – |
| Staffing needs | 0, driver uses independently | 0, driver uses independently |
Easy to use, driver-independent
Both systems are designed for use by the vehicle driver. The driver carries out the filling operations with a remote control unit, so no separate personnel are required for loading. The automated and remotely controlled system makes loading smooth and safe.
Twin solution: dry and wet unloading in parallel
It is typical for dry and wet discharge systems to be installed side-by-side in the silo's lower chamber. This allows for flexible use of both solutions, enabling the selection of the most suitable option for each situation.
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