초록 ▼

In a granulator of the jet layer type, all the liquid jetting openings are located in a passage for a gas jetted from the gas jetting opening and each liquid jetting opening is located at a position higher than the gas jetting opening by a vertical distance smaller than the inner diameter of the gas

In a granulator of the jet layer type, all the liquid jetting openings are located in a passage for a gas jetted from the gas jetting opening and each liquid jetting opening is located at a position higher than the gas jetting opening by a vertical distance smaller than the inner diameter of the gas jetting opening. The granulator may have an additional device such as an excess size-having particle-collecting means, a five particle treating means, a rectifying pipe member, a fuffer member and a hindrance and breakage member.

대표청구항 ▼

A granulator, comprising an elongated, substantially vertical vessel having at its lower portion a downwardly converging funnel of inverted frusto-conical shape, said funnel being adapted to contain a bed of particles; a gas-supply conduit extending outwardly from the bottom of said funnel, said gas

A granulator, comprising an elongated, substantially vertical vessel having at its lower portion a downwardly converging funnel of inverted frusto-conical shape, said funnel being adapted to contain a bed of particles; a gas-supply conduit extending outwardly from the bottom of said funnel, said gas-supply conduit defining a gas-jetting opening at its upper end which opening is coaxial with the central axis of said funnel, said conduit being adapted for supplying through said gas-jetting opening an upwardly flowing, high velocity stream of gas effective to entrain particles present in the lower portion of the bed so that the gas stream and particles entrained therein flow coaxially upwardly through said funnel and through the central portion of the bed into the central region of the upper portion of said vessel above the bed; liquid-supply pipe means extending upwardly through the central portion of said gas-jetting opening, said supply pipe means having spraying means at its upper end for spraying droplets of liquid material upwardly into said funnel and through the path of said gas stream so that said liquid droplets contact and adhere to said particles in said funnel and enlarge the size thereof to form granules, said spraying means being disposed within said funnel above the upper end of said gas-jetting opening and being located a vertical distance above said gas-jetting opening which distance is less than the internal diameter of said gas-jetting opening.