| 摘要 |
A hopper, usable to supply material into an interior of a structure, includes walls that define a supply opening and a tapering supply space, a supply outlet and spout, a cover that extends over the supply opening, mounting structures that are attachable to the structure, and barrier structure(s) that extend across the supply opening. A guide surface inside the hopper guides the material to the supply outlet. The barrier structure(s) catch agglomerations of the material, and can be used to break up such agglomerations and/or to prevent large objects from the entering the supply space. The hopper is attached to wall(s) of the structure using the mounting structures. A supply pipe extends from the hopper through a floor/wall of the structure and terminates at an appliance to be supplied with the material using the hopper. The cover includes a gasket that seals the supply opening when the cover is closed.
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