Method and apparatus for suppression of pollution in toration of glass fibers
AssigneeSaint-Gobain Industries
InventorsMarcel Levecque, Jean A. Battigelli
Life of this patent
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Abstract
Method and apparatus for the production of fibrous materials from attenuable substances, particularly molten glass, are disclosed, along with the fiber products which result. In the disclosed system the material to be fiberized flows into a region established as a result of the interaction of a jet transversely oriented with respect to a larger blast, the material being acted upon in the interaction zone to produce a highly attenuated fiber. There are also disclosed techniques for suppression of pollution in manufacturing plants using the disclosed fiberization techniques.
Claims28
Equipment for making resin bonded glass fiber blanket comprising a substantially closed fiber receiving chamber, a perforated fiber collecting conveyor defining at least a large part of a wall of said chamber, means for developing a gaseous blast in said chamber, means for developing a gaseous jet of smaller cross section than the blast, directed at an angle to the blast and penetrating the blast to produce a zone of interaction of the blast and jet, means for introducing molten attenuable material into said zone of interaction and thereby effect fiberization thereof in the receiving chamber, suction means behind the fiber collecting conveyor developing gaseous currents through the fiber collecting conveyor and thereby form a fibrous blanket on the conveyor, means for spraying water and curable resin binder material on the fibers, means for separating water with resinous material carried thereby from said gaseous currents, and means for recirculating the gases to and through the receiving chamber and the conveyor.
Equipment for making fiber blanket comprising a substantially closed fiber receiving chamber, a perforated fiber collecting conveyor defining at least a large part of a wall of said chamber, means for developing a gaseous blast in said chamber, means for developing a gaseous jet of smaller cross section than the blast, directed at an angle to the blast and penetrating the blast to produce a zone of interaction of the blast and jet, means for introducing attenuable material into said zone of interaction and thereby effect fiberization thereof in the receiving chamber, suction means behind the fiber collecting conveyor developing gaseous currents through the fiber collecting conveyor and thereby form a fibrous blanket on the conveyor, and a duct receiving the gases from said suction means, said duct being connected with the receiving chamber to effect recirculation of said gases.
Equipment for making resin bonded glass fiber blanket comprising a substantially closed fiber receiving chamber, a perforated fiber collecting conveyor defining at least a large part of the bottom of said chamber, means for developing a gaseous blast in said chamber, means for developing a gaseous jet of smaller cross section than the blast, directed at an angle to the blast and penetrating the blast to produce a zone of interaction of the blast and jet, means for introducing molten glass into said zone of interaction and thereby effect fiberization thereof in the receiving chamber, the means for developing the gaseous blast being located in an upper region of the receiving chamber and being positioned to direct the blast in a path extended over the perforated conveyor, suction means below the conveyor developing a gaseous current downwardly through the fiber collecting conveyor and thereby form a fibrous blanket on the conveyor, means in the receiving chamber for curable liquid resin binder material on the fibers, means for scrubbing the gaseous current with water, means for separating from said current water with resin constituents carried thereby, and a duct for recirculating at least a portion of the scrubbed gaseous current to the receiving chamber, the connection of the duct with the chamber providing for delivery of the gases in the same general direction as the direction of flow of the gaseous blast.
Equipment for making resin bonded glass fiber blanket comprising a substantially closed fiber receiving chamber, a perforated fiber collecting conveyor defining at least a large part of the bottom of said chamber, means for developing a gaseous blast in said chamber, means for developing a gaseous blast in said chamber, means for developing a gaseous jet of smaller cross section than the blast, directed at an angle to the blast and penetrating the blast, to produce a zone of interaction of the blast and jet, means for introducing molten glass into said zone of interaction and thereby effect fiberization thereof in the receiving chamber, the means for developing the gaseous blast being located in an upper region of the receiving chamber and being positioned to direct the blast generally horizontally above the perforated conveyor, fiber guide means inclined downwardly from and in the general direction of the gaseous blast for directing the fibers to the perforated conveyor, suction means for developing a gaseous current downwardly through the fiber collecting conveyor, means in the receiving chamber for spraying curable liquid resin binder material on the fibers, means for separating resin constituents entrained by the gaseous current, and a duct for recirculating at least a portion of the gases from the separating means to the receiving chamber, the duct being connected with the receiving chamber to provide for flow of the recirculating gas stream in a direction to encounter the upper end of the fiber guide means before the lower end thereof.
A method for forming a glass fiber blanket on a perforated fiber collecting surface, comprising developing a gaseous blast, directing a gaseous jet of smaller cross section than the blast transversely into the blast to develop a zone of interaction, delivering molten attenuable glass into said zone of interaction and thereby effect fiberization thereof, developing a gaseous current flowing from the region of fiberization to and through the perforated collecting surface, and recirculating the gases of said current from the downstream side of the collecting surface to the region of fiberization.
Equipment for making glass fiber blanket comprising a substantially closed fiber receiving chamber, a perforated fiber collecting conveyor defining at least a large part of one wall of said chamber, fiberizing means adjacent another wall of the chamber including means for discharging a stream of molten glass and jet means effecting fiber formation by gas blast attenuation of the glass stream and thus developing a fiber laden gaseous current directed toward the conveyor, suction means at the downstream side of the perforated conveyor developing currents through the conveyor and thereby form a fibrous blanket on the upstream side of the conveyor, and ducting receiving gases from said suction means and extended to a region of the receiving chamber adjacent to the fiberizing means, the ducting recirculating at least a portion of the gases into the receiving chamber in the region of the fiberizing means and in a direction to join the fiber laden gaseous current directed toward the conveyor.
Equipment for making glass fiber blanket comprising a substantially closed fiber receiving chamber, a perforated fiber collecting conveyor defining at least a large part of one wall of said chamber, means for admitting a stream of molten glass into the chamber, means for fiberizing molten glass including jet means for effecting gaseous attenuation of the molten glass in a region spaced from the collecting conveyor, means defining a channel for directing the attenuated fibers from said region to the collecting conveyor, suction means for developing gaseous currents through the fiber collecting conveyor and thereby form a fibrous blanket on the conveyor, a duct receiving the gases from said suction means, and means for dividing the gases into portions and recirculating one portion into the upstream end of said channel and another portion to the fiber collecting side of the fiber collecting conveyor.
Equipment for making fiber blanket comprising a substantially closed fiber receiving chamber, a perforated fiber collecting conveyor defining at least a large part of a wall of said chamber, means for admitting a stream of molten glass into the chamber, means for fiberizing molten glass including jet means for effecting gaseous attenuation of the molten glass in a region spaced from the collecting conveyor, means defining a channel for directing the attenuated fibers from said region to the collecting conveyor, suction means at the downstream side of said conveyor for developing gaseous currents through the fiber collecting conveyor and thereby form a fibrous blanket on the conveyor, means for spraying water and curable resin binder material on the fibers after delivery from said channel, means downstream of the conveyor for separating water with resinous materials carried thereby from said gaseous currents, and means for recirculating at least a portion of the gases to and through the fiber directing channel.
Equipment for making fiber blanket comprising a substantially closed fiber receiving chamber, a perforated fiber collecting conveyor defining at least a large part of a wall of said chamber, means for admitting a stream of molten glass into the chamber, means for fiberizing molten glass including jet means for effecting gaseous attenuation of the molten glass in a region spaced from the collecting conveyor, means directing the attenuated fibers from said region to the collecting conveyor, suction means for developing gaseous currents through the fiber collecting conveyor and thereby form a fibrous blanket on the conveyor, means for spraying water and curable resin binder material on the fibers after delivery from said channel, means for separating water with resinous materials carried thereby from said gaseous currents, and means for dividing the gases and recirculating separate portions thereof to different regions of the receiving chamber.
Equipment for making glass fiber blanket comprising a substantially closed fiber receiving chamber, a perforated fiber collecting conveyor defining at least a large part of one wall of said chamber, means for admitting a stream of molten glass into the chamber, means for fiberizing molten glass including jet means for effecting gaseous attenuation of the molten glass in a region spaced from the collecting conveyor, means defining a channel for directing the attenuated fibers from said region to the collecting conveyor, suction means for developing gaseous currents through the fiber collecting conveyor and thereby form a fibrous blanket on the conveyor, a duct receiving the gases from said suction means, and means for effecting recirculation of at least a portion of said gases including means for dividing the recirculating gas stream into at least two portions one of which is delivered into the receiving chamber in the region of the inlet of said channel and another of which is delivered into the receiving chamber in the region of the fiber collecting conveyor.
Equipment for making glass fiber blanket comprising a substantially closed fiber receiving chamber, a perforated fiber collecting conveyor defining at least a large part of one wall of said chamber, means for admitting a stream of molten glass into the chamber, means for fiberizing molten glass including jet means for effecting gaseous attenuation of the molten glass in a region spaced from the collecting conveyor, means defining a channel for directing the attenuated fibers from said region to the collecting conveyor, suction means for developing gaseous currents through the fiber collecting conveyor and thereby form a fibrous blanket on the conveyor, a duct receiving the gases from said suction means, and means for effecting recirculation of at least a portion of said gases including means for dividing the recirculating gas stream into at least two portions one of which is delivered into the upstream end of said channel and another of which is delivered into the receiving chamber in the region of the fiber collecting conveyor.
Equipment for making resin bonded fiber blanket from molten attenuable material comprising a substantially closed fiber receiving chamber, a perforated fiber collecting conveyor defining at least a large part of a wall of said chamber, means for developing a gaseous blast in said chamber, means for developing a gaseous jet of smaller cross section than the blast, directed at an angle to the blast and penetrating the blast to produce a zone of interaction of the blast and jet, means for introducing the molten material into said zone of interaction and thereby effect fiberization thereof in the receiving chamber, suction means behind the fiber collecting conveyor developing gaseous currents through the fiber collecting conveyor and thereby form a fibrous blanket on the conveyor, means for spraying water and curable resin binder material on the fibers, means for separating water with resinous material carried thereby from said gaseous currents, and means for recirculating the gases to and through the receiving chamber and the conveyor.
Dependencies are inferred from the claim text.