Volkmann‘s Lump breakers for agglomerates and lumps can easily be added to bag unloading and material pick up stations (e.g. RNT, BBU, RNT-CON). They allow vacuum transport in a closed system free of emissions. They are easy to disassemble and to clean, but can also be flushed without removal from the equipment.
Video: bag rip-and-tip dump station RNT 180 with an attached lump breaker