APPARATUS FOR MAKING A COLUMN INTO A SOIL

摘要

The invention relates to a conveying device for bulk material, comprising: a transport channel (3, 4) having a compressed air inlet and a material outlet and having a material inlet which is disposed between the compressed air inlet and the material outlet; a storage tank (1) for a bulk material having an outlet which is connected to the material inlet; and a metering device which is designed to control an amount of bulk material flowing out of the storage tank (1) into the transport channel (3, 4) depending on a pressure in the transport channel (3, 4).