초록 ▼

An injector arrangement for use where particulates are to be entrained in a gas transport medium. The apparatus has a nozzle discharging conveying gas and a secondary, dosing, gas flow provided from an annular passage. This secondary flow envelopes the conveying gas. Particulates are drawn into the

An injector arrangement for use where particulates are to be entrained in a gas transport medium. The apparatus has a nozzle discharging conveying gas and a secondary, dosing, gas flow provided from an annular passage. This secondary flow envelopes the conveying gas. Particulates are drawn into the combined gas streams by a venturi effect.

대표청구항 ▼

[ We claim:] [1.] An injector arrangement comprising:an injector casing; anda conveying gas nozzle communicating with a powder intake connection and a powder intake chamber defined by the injector casing for drawing pulverulent material through the powder intake connection and into the powder intake

[ We claim:] [1.] An injector arrangement comprising:an injector casing; anda conveying gas nozzle communicating with a powder intake connection and a powder intake chamber defined by the injector casing for drawing pulverulent material through the powder intake connection and into the powder intake chamber by discharging a conveying gas flow through the nozzle, the injector casing defining an annular gap extending generally in a direction of the conveying gas flow and located generally upstream of the powder intake chamber relative to the gas flow, the annular gap opening into the powder intake chamber for introducing a dosing gas flow into the powder intake chamber generally coaxially with and in the direction of the conveying gas flow to surround the conveying gas flow, and the injector casing further defining a conduit located downstream of the powder intake chamber relative to gas flow for feeding a pulverulent material borne by the conveying and dosing gas flows to a remote location.