Granular material distributing apparatus comprising at least two transfer vessels that operate in alternation

摘要

Apparatus for distributing granular material, in particular sand, the apparatus comprising:a) a portable distribution head;b) a flexible hose for transferring the material to the portable head;c) a main feed duct for feeding material from a storage vessel;d) a main suction duct associated with the flexible hose for sucking dust from the portable head;e) a plurality of n transfer vessels suitable for being fed with material from the main feed duct and for delivering the material to the portable distribution head;f) sets of multiple connections enabling the distribution head to receive material from a selected vessel and at least one other vessel to be fed simultaneously with the material; andg) control means for obtaining substantially continuous operation of the distribution head by controlling changeovers between the vessels which are caused to operate in alternation.