DE1111346B - Device for processing mineral goods that can be softened in the heat, for example glass - Google Patents

Description

The invention relates to an apparatus for processing heat softenable mineral Good, such as glass, in which the warmly softened good is poured into one with openings rotating rotor with perforated walls is introduced, through whose holes the material as a straight body in a gaseous blow jet flowing at high speed Production of fibers is centrifuged.

In the previously known devices of this type, the spinning-out of the softened material runs The rotor rotates at a relatively high speed, thereby allowing the fibers to be drawn out to be able to apply the necessary force to the material. This high rotational speed of the rotor, which is sometimes also called spinner, but has the disadvantage that it also cools down considerably the rotor itself and the goods located therein occurs, so that the viscosity of this softened mineral goods are reduced, making it difficult, sometimes even impossible, to pull out the fibers when the rotor "freezes". To these disadvantages with the known devices then too Fixing difficult, costly and lengthy operations are required through which the whole Operation of a continuously operating large industrial plant can be disrupted.

The invention is based on the object of this adhering to the previously known devices Avoid disadvantages, which happens through a ring burner that is directed into the interior of the rotor where the heat generated there ensures the desired viscosity of the material. This is a proper functioning of the device described above is guaranteed.

Further advantages and features of the device according to the invention emerge from the following Description on the basis of the drawings. The drawings show in

Fig. 1 is a partially sectioned side view of a fiber manufacturing device with a Embodiment of the devices generating the additional heat according to the present invention,

2 shows a sectional view of a modified embodiment of the subject matter of the invention,

Fig. 3 is a section substantially along the line 3-3 of Fig. 1,

4 shows a partial section through a modified embodiment of the rotor construction and

5 shows a partial section to show another embodiment of an additional heating device according to the present invention.

Device for processing

of things that can be softened in the warmth,

mineral goods, for example glass

Applicant:

Owens-Corning Fiberglas Corporation,
ίο Toledo, Ohio (V. St. A.)

Representative: Dipl.-Ing. H. Bahr

and Dipl.-Phys. E. Betzier, patent attorneys,

Herne, Freiligrathstr. 19th

Claimed priority:
V. St. v. America May 29, 1958

Dale Kleist, St. Louisville, Ohio, Henry J. Snow

and Carl S. Buchanan, Newark, Ohio (V. St. Α.),

have been named as inventors

The invention is particularly applicable to the processing of thermally softenable mineral goods, for example glass, into fine fibers. She lets Of course, they are also heat-softenable in the manufacture of fibers or threads from other materials Use mineral material, for example made of slag, fusible rock, or the like. The device according to the invention is constructed in the form of a system that can be used as a single system or can be used together with other similar systems, the latter when a high fiber output Particularly intended for the production of fiber mats or the like of considerable width and strength is.

The device shown for example in Fig. 1 takes a stream 12 from softened in the heat Glass or other heat-softened material that flows from an opening into a Feed device 14 comes, which is arranged under a forehearth 16. This forehearth 16 takes the glass or the like in a flowable state from a suitable, but not shown, melting furnace or melting container in which the glass batch or another mineral material is deposited is converted by heat into the molten state in a known manner. Fig. 1 shows an individual

109 648/91

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Stream 12 made of glass, which enters the fiber production plant. The steam or compressed air passes through the ring

comes in. It goes without saying that a plurality of openings 60 can also have a high speed

such currents are introduced into the system, each blow jet of substantially cylindrical shape

according to how high the manufacturing speed looks. The gases of the blow jet attack the individual Fibers is. 5 glass body 32, which is in the blow jet through the centric

The plant 18 processes the glass stream into single fugal forces. The pulls

individual glass bodies, which in an extraction medium, in the case of the blow jet, these primary bodies in fibers F from which

for example a glass jet, ejected from the device in the form of a hollow column

the one whose gases move substantially perpendicular to the downward. The fibers are on a Move the entry path of the gas into the blow stream. io not signed sponsors collected and formed

The device shown in Fig. 1 has a fibrous mass or in a known manner there

general cylindrical housing 20 on the mat.

is stored in a frame not shown. The annular fan structure 54 is attached Device includes a hollow rotor 24 which is attached to a plate 66 attached to the housing 20 by the circumference the lower end of a hollow shaft 26 is mounted, which is attached to 15 spaced brackets 68, is rotatably mounted in bearings 27. Shaft and rotor, one of which can be seen in FIG. 1. On the plate are for example by a not shown 66 is a plurality of brackets 70, the Electric motor driven, which accommodate support members 72 within the housing, which with the fan 20 are arranged or connected in some other way to the housing by means of screws 73. the Shaft 26 can be coupled. The rotor 24 has 20 brackets 70 with threaded holes for comparison thin walls provided to take the mounting screws 74 provided, the Keep the weight of the rotor to a minimum by comparing each other in the vertical direction however, ensure the necessary strength to the running longitudinal slot 76 in the bracket 72, around the ken caused by the centrifugal effect, around the vertical adjustment of the fan casing Destructive and breaking forces are related to the correct setting of the opening 60 to be able to. The rotor is expediently borrowed from the ejected body 32 and thus to a suitable metal or metal alloy to facilitate the extraction process, for example stainless steel or other metal. Under the plate 66 is a member 80 with or another high strength alloy - an annular flange 82 attached to plate 66 properties and high resistance to 30 is. The link 80 has a downward slope Intense heat of the GIade, which is softened in the heat, is provided with annular wall 86, the lower part of which or the like res end with an inwardly pointing ring

The rotor has a circular end wall flange 88 connected to it. At the grazing inside 28 of generally cylindrical or easily send flange 88 is a member 90 attached to the one conical shape, as shown in Figs. 1 and 2 on. 35 has an annular wall 92 and an annular flange 95, The wall 28 is comparative to several rows of the area where the rotor is attached to the shaft as small outlets or openings 30, 26 surrounds. The flange 95 leaves a space 98 in the through which the glass softened in the heat under the neighborhood of the shaft 26 to limit the longitudinal Influence of the center shaft 26 generated when the rotor rotates and the outer wall 36 of the rotor trifugal forces in the form of individual rectilinear bodies 40 free flowing air.

or primary threads 32 which are flung out. The member 90 has a drooping edge move from the rotor in planes outwards, the vertical 100 provided, the one with the inner surface 102 of the fair stand to the axis of rotation. Blower cap 58 forms an annular slot 104 through

The upper region of the wall 28 is connected to the air induced by the blower flow from a region frustoconical wall 36 which flows with 45 above the fan in contact with the gases of the upwardly extending sleeve or blower flow. The annular gap 104 runs the hollow hub part 38 welded or in some other way concentric to the annular opening 60.
connected is. Between the outer surface of the lower interior of the rotor 24 there are devices in front of the shaft 26 which receive the blow stream 12 and the ring member 40, which is preferably connected to the shaft 26, in contact with the inner surface of the Rotorwanscht is welded. Around the hub 38 is a ring 42 spread 28 so that a quantity of glass is created on the wall 28 with a plurality of on the circumference at a distance from which the body 32 provided threaded openings for receiving the are drawn.

Threaded parts 44 of the support members 46. The cylindrical In the embodiment shown in FIG

Portions of the links 46 extend in alignment 55, these distributor devices consist of in the rotor

Openings in the shaft 26 and in the ring 40 and those- a cup-shaped member 110 that connects to the rotor

for fastening the rotor to the shaft. runs around, and an unperforated bottom wall 112,

A side frustoconical wall 48 having a circular cross-section is attached to the lower region of the wall 28 and ends wall 114 and a reinforcing flange 116 at an edge 50 (FIG. 1), which has a circular opening 60 of the upper edge of wall 114,
The wall 114 extends slightly upwards and the rotor 24 can escape through the gases from the interior. Around the rotor outside, in order to achieve a more even vertical distribution 24, a fan 54 with a housing 56 and the glass along the wall, and is a cover 58 and with an annular opening with a number of openings or outlets 118 60. The Housing 56 of the fan has a chamber 65 through which the glass 62 softened in the heat, which takes up centrifugal forces on the inner surface of the rotor, under pressure from steam or through the compressed air from a source not shown when the shell UO circulates, wall 28 is thrown.

As can be seen from FIGS. 1 and 3, is in the central area of the rotor and below the shell 110 a ring 124 arranged, which with the frustoconical Wall 48 of the rotor is connected by a plurality of radially arranged spokes 126 is welded at its inner ends to the ring 124 and at its outer ends in the wall 48 are. The ring 124 and the spokes 126 form the support element on which the shell 110 rests.

is connected to a source for a combustible mixture, for example of fuel gas and air. During operation, the fuel-air mixture flows under comparatively low pressure 5 through tube 160, chamber 158, then down through annular passage 134 into Burner 142 and then through openings 144 where it finally burns down in the rotor. The openings 144 have a small cross-section in order to ignite the

The bottom wall 112 of the bowl is to prevent the io mix in the burner 142.
Spokes 126 welded on or in some other way around the sleeves 130 and 132 on the correct loading

attached so that the shell 110 rotates with the rotor. As a result of the blow stream 12 from the feeding device 14 in the distributor 110 through

To keep operating temperature, devices are provided to prevent overheating of the through the ring channel 134 Prevent inflowing mixture.

nen distance and the high rotational speed 15 is within the sleeve 132 and at a distance therefrom of the rotor occur heat losses, which the one cylindrical sleeve 164 provided with the Increase the viscosity of the gas and thus its loading sleeve 132 forms an annular cooling jacket 166, impair mobility. the lower end of which is closed off by a ring 168

The embodiment shown in Fig. 1 shows closed, which is welded to the lower ends of the sleeves devices for creating a heated zone 20, 132 and 164.
inside the rotor and for continuous delivery. The cooling jacket 166 absorbs circulated cooling

tion of heat in the rotor in the direction of the wall medium, for example water, which in the tion 28 and the chamber located in the vicinity of the wall is introduced through an inlet conduit 170 Lent glass to reduce heat losses and removed from it through an outlet line 172 inside the rotor and to maintain a 25 will. The combustion of the gases within movable state of the heat softened of the rotor 24 combustion products Glass to facilitate the centrifugal we are through the by the circular edge 50 kung-induced ejection of the glass of the rotor wall 48 discharged defined opening, through the outlets 30 in the rotor wall 28. FIG. 2 shows a modified embodiment of the

Within the hollow shaft 26 are concentric, 30 burner construction for generating a heated however at a distance, an outer sleeve 130 and a zone within and near the wall of the inner sleeve 132 arranged so that an annular rotor and arranged inside the rotor Chamber 134 for receiving a combustible Mi-glass distribution device. In the illustrated in Fig. 2, for example from gas and air. Represented embodiment are the wall 28 'and The lower end of the outer sleeve 130 is with a 35 the frustoconical walls 36 'and 48' of the outwardly facing flange 136, while rotor 174 is essentially the same as the

rend the inner sleeve has an outwardly facing flange 138 at its lower end. The two Flanges are frustoconical by a

speaking parts of the rotor construction according to Fig. 1. The rotor sits on the lower end of the hollow shaft 26 'and is held there by devices that

Wall 140 connected to one another so that the 4 ° differ from those in the construction according to FIG Ring flanges 136, 138, the wall 140 and the slightly different.

lower wall part of the sleeve 132 an annular- From the rotor wall 36 'extends an annular-

to form burner 142. shaped sleeve part 176 to the top. At the bottom

As can be seen from Fig. 1, the annular of the hollow shaft 26 'is an outwardly white burner above the wall 114 of the shell-like 45 transmitter annular flange 178, of which a round sleeve 180 gene distributor 110 arranged. The inclined one hangs down to fit into the annular member 176. Wall 140 carries a series of openings 144, circumferentially spaced screws

through which the combustible mixture in the burner 182 extends through bores in the member 176 142 exits under comparatively low pressure, and in threaded bores in the wall 180 for igniting and outside the wall 140, 50 rotatably attaching the rotor to the shaft 26 '. but inside the rotor, burns down. The opening The WeUe 26 'is set by a gene 144 (not shown) that circulates the combustible gases, in general an electric motor,
in the radial direction along the rotor wall 36, so the glass distribution device 110 'corresponds to FIG

that the burning gases produce a heated essential area in connection with FIG. 1, through which the rotor and the glass distributor 110 described in 55.
Glass located near the wall 28 is heated
will.

The upper termination areas of the sleeves 130 and
132 are held at a distance by spacers 148. One of these spacers 148 can be seen in FIG. 1 60, a gaseous blow jet, preferably made of steam, at the top. The inner sleeve 132 extends in or compressed air, through an annular opening 60 'to the Ausein connection piece 150, which pulls into a threaded hole of a fixed cover 152 which is ejected by the centrifugal force into a glass body 32' to form glass fibers,
that is seated on the annular member 154. The heat generating devices have

The member 154 is mounted on a ring member 156, 65 in the construction according to FIG. 2 a burner 184 which is arranged on the housing 20. The one on that has a heated area in the inner band lid 152 has a recess for forming a zone of the rotor 174 created, and contain one Passage 158, which via a line 160 second or additional burner 186, the heat in a

The bottom wall 112 'of the distributor sits on a centrally located one Ring 124 'and radially extending spokes 126 in a manner similar to the corresponding parts 1. A fan structure 54 'provides

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Heating zone within the glass distribution tray 110. With this arrangement, the essentially

ready. Inside the hollow shaft 26 'there is a circular wall 114' of the distributor 110 'of the

outer sleeve 188, an inner sleeve 190, and a heat of the gases burning from the burner 186

Intermediate sleeve 192, which are conical at a distance from one another, so that the wall 114 'and the in the

are arranged centrally to one another. At the end of the 5 proximity jar at a correct temperature

outer sleeve 188 is a flange 194 which is retained to thereby facilitate the extraction of the im

is connected to a wall 195. A radial distributor 110 'located glass through the opening

flange 196 is to be placed on the inner wall 190 and on the gene 118 'on the inner surface of the rotor 28

The lower edge of the intermediate sleeve 192 is welded on. lighten.

A wall 198 hangs from the flange 196 by building up heated zones in the vicinity of the below, and the lower edge of the wall 198 is inner edge regions of the distribution tray 110 'and The maintenance is appropriately frustoconical via a radially extending wall 200 and one of the rotor 174 ' Hole wall 202 achieved with the neter temperatures in these areas, so outer wall 195 connected. The flanges 194 that the rectilinear gas bodies 32 ', which come from the opening 196, 200, the walls 195, 198 and which emerge with holes in the wall 28 'are in the green provided wall 202 form a ring-förstaus- most extended state when they are in the Mige burner chamber 204 for receiving a burning the ring opening 60 'emerging blow jet Mixture, for example fuel gas and air. step.

The outer sleeve 188 and the intermediate sleeve 192 Fig. 4 shows a modified embodiment of the

form an annular passage 193 in which the 20 bottom wall of a rotor structure 230. At

Flammable mixture from a supply in the chamber of this embodiment is the wall 28 "with

204 is funded. The mixture is in the ring of a lower frustoconical wall 48 "

shaped space 193 is provided by an arrangement which has the same shape as the wall 48

leads, as shown in FIG. and 48 'of Fig. 1 and 2, respectively. In this con-

The frustoconical wall 202 has a struktion, but the rotor has a bottom wall.

A plurality of passages or openings 208 provided with the frustoconical

see through which the mixture from the annular chamber wall part 48 "is connected. The distributor bowl

204 exits, is then ignited and inside 110 ″ sits directly on the bottom wall 232 of the

Area of the rotor 174 in the vicinity of the walls of the rotor. To prevent the gases from escaping from the engine

28 'and 36' burns down. 30 to facilitate the interior, the bottom wall 232 is with

The heat provided by the burning gases formed circular rows of openings 234 and 236 delays heat loss and keeps the temperature provided, with the openings in the outer row the rotor walls and the fiber-forming, preferably larger cross-section than those of the Distributor 110 'in contact with the perforated inner row of the rotor in order to avoid the zen wall 28' coming material in such a way that the 35 trifugal stresses are reduced. The array fiber forming end Material the correct viscosity and voltage according to Fig. 4 can be used in each of the above Has mobility to find the ejection of the heating devices described use. Glass or the like through the rotor openings 30 'to Fig. 5 shows a modified embodiment of the formation of the individual rectilinear bodies 32 '2x1 of the burner according to the invention. With this execution easier. 40 shape corresponds to the rotor 24 α substantially

As can be seen from FIG. 2, the angled rotor 24 according to FIG. 1 is the bowl-shaped distributor

position of the hole wall 202 and the openings 110 a sits on a centrally arranged ring 124 a,

208 chosen such that the mixture along the through radially arranged spokes 126 a with the

Wall 36 'outlet and the mixture is connected while the rotor wall 48 a. The wall

nes way over this wall 36 'burns. 45 114 a of the distributor is equipped with openings 118 a

The auxiliary burner 186 contains a perforated plate through which the supplied by the stream 12 α

212 of annular shape, the inner surface of which exits gas on the inner surface of the wall 28 a

the lower edge 214 of the sleeve 190 and its outer and from there in the form of individual straight bodies

surface is welded to the wall 216. Which is ejected through the openings 30 a,

upper edge is with the radially extending flange 50. The burner 240 is with two perforated plates 242 and

196 welded or otherwise connected. 244 provided, which is connected by a bottom wall 246

The adjacent wall area of the sleeve 190 are bound. The perforated plate 242 closes on a

the ring wall 248 of an outer sleeve 130 a between the sleeve 190 and the wall 216,

lying area of the flange 196 and the perforated while the perforated plate 244 with the inner sleeve 132 a

Plate 212 form the auxiliary burner chamber 220. The 55 is connected. The individual parts define one

The combustible mixture is fed to the auxiliary burner 186 through the annular burner chamber 250. The perforated plate 242

a conveying pipe 221 fed through the and the passages 243 direct the mixture to the

the outer wall 188 and the intermediate wall 28 a of the rotor, and the mixture burns

192 limited space. Not drawn during its transition to the rotor wall

Venitile regulate the supply of the mixture to the chamber 60, so that a heated zone, similar to the supply

mer204 and for the additional burner chamber 220, a preferred connection with FIG. 1, arises,

wise independently of each other. The annular die plate 244 and openings 245 align

Perforated plate 212 of the additional burner 186 is with the combustible mixture on the outer surface of the

NEN passages 222 provided through which the wall 114 a of the distributor bowl HOa to the

mix from the chamber 220 under a comparatively 65 wall 114 a of this shell and the neighboring

low pressure in the inner area of the distribution area on one to pull out the material

lers HO occurs. The mixture burns to a suitable temperature under the hole through the openings 118 α

plate 212 in the edge area of the distributor. keep.

The combustible mixture, for example of fuel gas and air, is fed into the burner 250 through the annular space 134 α between the sleeves 130 α and 132 a with the aid of the arrangement described in connection with FIG. 1.

The invention therefore produces heated areas in critical zones in order to prevent the Retard heat loss and keep the glass or other fiber-forming material at a temperature and to maintain viscosity, which increases the mobility of the glass from its supply in a softened state in the manifold up to the entry area in the exhaust jet.

Claims (11)

PATENT CLAIMS: 1. Device for processing heat-softenable mineral goods, for example glass, in which the heat-softened goods are introduced into an apertured rotating rotor with perforated walls, through the holes of which the material flows as a straight body into a high speed flowing gaseous blow jet for the production of fibers is ejected, characterized by a ring burner (142) which is directed into the interior of the rotor (24), where the heat generated there ensures the desired viscosity of the material. 2. Apparatus according to claim 1, characterized in that the rotor (24) sits on a hollow shaft (26) and the burner (142) is arranged comparatively rigidly within the hollow shaft (26). Apparatus according to claim 2, characterized in that the heat softenable material is introduced into the rotor through a rotating manifold (110) seated within the rotor, the material being directed outwardly from the manifold by centrifugal forces. 4. Apparatus according to claim 2, characterized in that the distributor (110) rotates in the rotor with the rotor (24). 5. Apparatus according to claim 3, characterized in that the burner (142) is provided with passages (144) which direct the combustible mixture to the interior of the rotor. 6. Apparatus according to claim 3, characterized in that the burner (220) is provided with passages (222) which direct the combustible mixture to an area within the distributor (HO '). 7. Device according to claim 2, characterized in that the distributor (110, 110 ') is a bowl-like member. 8. Apparatus according to claim 7, characterized in that the shell-like member (110) has an edge (114) provided with openings (118) from which the mineral material is ejected onto the inner wall of the rotor. 9. The device according to claim 1, characterized by burners (240) which direct a combustible mixture to the inner region of the distributor and the inner region of the edge wall of the rotor to regulate the state of malleability of the mineral material. 10. The device according to claim 1, characterized by a burner (220) with passages which direct a combustible mixture in an area within the distributor (HO '), and by another burner (124) with passages which a combustible mixture in a Align the ring area between the distributor and the edge wall of the rotor. 11. The device according to claim 10, characterized in that the burners (184,220) are each provided with their own, independent burner chamber. 1 sheet of drawings © 109 648/91 7.