SU791668A1 - Device for producing mineral fiber from melts - Google Patents

Description

(54) DEVICE FOR RECEIVING MINERAL FIBER FROM MELTS

one

The invention relates to the field of the textile industry, namely to devices for the production of a mine. ral melt fibers, when-. changeable in the production of building materials.

A device for obtaining mineral fiber from melts is known, which contains a feeder, a heated thick-walled spinneret feeder and a blow-out unit ij.

The prior art device does not allow to obtain high quality fiber. The purpose of the invention is to improve the quality of fiber.

 This is achieved by the fact that the operating system contains at least two spacing exact containers located between the spinneret feeder and the feeder and connected to them, each intermediate container having a nozzle for supplying a compressed medium.

To regulate the supply of compressed media, each container has valves installed in front of the spinneret feeder and in front of the nozzles for supplying the compressed medium.

The nozzle feeder has spinnerets from a heat-resistant glass-resistant alloy based on chromium and iron.

FIG. 1 shows a fiber shaping unit; Fig. 2. - piping connection scheme.

the device has at least two

5 intermediate tanks 1 in the form of pipelines, each of which has two valves 2. In the lower part of the tank 1, they communicate with a thick-walled spinneret feeder 3 heated together with them by burners 4. At the point of exit of the melt streams from the spinnerets, burner 5 is blown, the walls of the fiber receiving channel are protected by water-cooled panels 6,

15, the outlet diffuser 7 of the fiber deposition chamber is located at the exit of the channel. Compressed air lines have valves 8.

When the device is operating, the melt is fed from the tanks 1 (in this case there are two of them) to the spinnered feeder 3 by alternately opening or closing the valves 2, namely: while the upper valve 2 is closed on one container 1, the lower valve 2 is open and valve 8 on the compressed air supply pipe, on the other containers 1, the lower valves 2 are closed And the valves 8 are compressed air, and

30, the upper valves 2 are opened, and one-one is taking place with the supply of the melt under pressure to the die plate 3, the gravity-filled filling of the reserve tanks with 1 melt from the feeder or the working part of the furnace,

Under the action of overpressure transmitted by compressed air to the melt in spunbond feeder 3, the melt flows out - from its spinnerets, the outflowing jets have a small diameter, but move at high speed, which ensures an increased productivity of the device.

Having fallen into a high-speed flow of combustion products leaving the burner 5 of the blowing, the melt streams are transformed into a super fine fiber, which is carried by this flow into the diffuser 7, where the cooling of the fiber by the ejected air occurs.

Claims (3)

Invention Formula 1, A device for obtaining mineral fibers from melts, a gas-air mixture holding feeder, heated thick-walled die plate feeder and blowing unit, characterized in that, in order to maintain the quality of the fiber, it contains at least two intermediate tanks located between and connected to the die plate feeder and feeder, each intermediate tank having a supply pipe compressed environment. 2. The device in accordance with Clause 1, distinguishes that in order to regulate the flow of the compressed medium, each container has valves installed in front of the spinneret feeder and in front of the nozzles of the supply of the compressed medium. 3. The device according to paragraphs. 1-2, distinguished by the fact that the filleted feeder has dies made of heat-resistant glass-resistant alloy based on chromium and iron. Sources of information taken into account in the examination 1. USSR author's certificate number 392014,., Class. 03/37/06 1973 (prototype). Phie. 1 Eject Iryam Air With katy . Rlslab from the oven