US 5,704,990 AGranted

Method of blowing conveying conduits free of material after conveyance

AssigneeZeppelin Schuettguttechnik GmbH

InventorsWolfgang Krambrock, Harald Wilms

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Abstract

A method of advancing material through a conveying conduit and blowing the conveying conduit free of material after conclusion of material conveyance includes the following steps: passing a conveying gas through a conveying conduit with a first flow rate for transporting the material therein; after conclusion of the conveying step, passing the conveying gas through a first gas inlet of an injector; drawing additional gas into the injector through a second inlet thereof by the conveying gas entering the injector through the first inlet; and passing a mixture of the conveying gas and the additional gas with a second flow rate, which is greater that the first flow rate, from the outlet of the injector through the conveying conduit for blowing the conveying conduit free of material.

Claims7

Dependent claims

A method of advancing material through a conveying conduit and blowing the conveying conduit free of material after conclusion of material conveyance, comprising the following steps:

(a) providing an injector having a first gas inlet, a second gas inlet and a gas outlet;
(b) passing a conveying gas through a conveying conduit with a first flow rate for transporting the material therein;
(c) after conclusion of step (b), passing the conveying gas through the first gas inlet of the injector;
(d) drawing additional gas into the injector through the second inlet by the conveying gas entering the injector through the first inlet;
and
(e) passing a mixture of the conveying gas and the additional gas with a second flow rate from the outlet of the injector through the conveying conduit for blowing the conveying conduit free of material;
the second flow rate being greater than the first flow rate.

4 more elements

Dependencies are inferred from the claim text.