SU1303566A1 - Device for producing staple fibre - Google Patents

Abstract

The invention relates to the production of heat insulating building materials and can be used to obtain staple fiber from a melt by blowing it up with energy carrier. The purpose of the invention is to reduce 3Hepro3atpaT by reducing the injection of gases. Device for producing staple fiber content (L 00 o with SP O) 05 S

Description

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There is a housing 1 with a channel 2 for feeding the jet 3 of the melt, a chamber 4 for melt blowing, a nozzle 5 for feeding the energy carrier during the primary blowing of the jet of the melt and a nozzle 6 for feeding the energy carrier for the secondary blowing of the melt. The stabilizer 7 is installed along the axis of the device in the form of a hollow rod with

one

The invention relates to the production of heat insulating building materials and can be used to obtain staple fiber from a melt by blowing it up with energy carrier.

The purpose of the invention is to reduce energy consumption by reducing the injection of gases.

Figure 1 shows the device, a general view, in Figure 2 - the same, a plan view, in FIG. 3 - the same, a bottom view.

The device comprises a housing 1, with a channel 2 for feeding the jet 3 of the melt, a chamber 4 for blowing the melt, a nozzle 5 for feeding the energy carrier of the primary blowing of the jet of the melt and a nozzle 6 for feeding the energy carrier for the secondary blowing of the melt. The nozzle 5 for the primary blowing of the melt jet is made in the form of an annular cone-shaped diffuser with its apex directed towards the nozzle 6 for the secondary blowing of the melt. The axis of the device is adjustable with the possibility of adjustable mixing; along it is a stabilizer 7, made in the form of a hollow rod with a hole 8 in the conical top, while its side surface forms an annular diffuser with the inner surface of the housing, which is a continuation of the wall of the annular diffuser of the secondary section nozzle - blowing. The stabilizer 7 has a device 9 for controlled up and down movement of its axis with a channel 10 for supplying a surfactant to the cavity of the stabilizer 7. The device also contains a cavity 11 for the primary blowing energy carrier and a cavity 12 for the secondary blowing energy carrier.

Version 8 in the conical apex for the supply of the turner: 5 active complex substance. The nozzle 5 for the primary blowing of the melt jet is performed in the form of an annular cone-shaped diffuser with the apex directed toward the nozzle 6

secondary blowing of the melt, flo, 3 Il.

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The device works as follows.

An energy source heated to 800 ° C, for example gas, flows under pressure from the nozzle 5 for primary blowing into the chamber 4 of the blowing of the jet 3 of the melt flowing through the channel 2, where it is divided into elementary jets that fall. Under the influence of gas or steam at 300 emerging from the nozzle 6 for the secondary melt blown, and converted into long and thin fibers.

The stabilizer 7 is installed with the help of the adjusting device 9 at the required distance from the inner walls of the housing 1. From the opening 8 in the conical top of the stabilizer 7, a surfactant is supplied to the inflation zone, which reduces the fiber formation energy.

Reducing energy consumption by reducing the injection of gases in the device is due to the fact that the action of energy from the nozzle for primary inflation is directed to the melt stream and is much more economical in terms of energy costs for splitting the jet than the injected air passing through the ejection nozzle near melt stream.

The energy carrier exiting the nozzle for the primary inflation forms a gas curtain which significantly reduces the injection, in addition, the flow of energy carrier fills the vacuum cavity formed by the energy carrier coming out of the nozzle for the secondary inflation.

Unlike injected gas, the amount of energy carrier supplied through the nozzle is regulated. By excluding the injection, one can significantly reduce the energy consumption for the movement of ballast gas.

A stabilizer, made in the form of a hollow rod with a hole in the conical apex, also prevents injection, filling the vacuum zone along the axis of the device, created by the movement of the energy carrier exiting the nozzle for the secondary bulge. It is set in order to improve the aerodynamic properties of the blower. The stabilizer forms an annular diffuser, which increases the rate of passage of the energy carrier in the device body, thereby increasing the effect of the energy carrier on the melt and reducing the fiber diameter. Another function of the stabilizer is to inject the surfactant into the inflation zone, which has a positive effect on the quality of the fiber produced.

Claims (2)

1. Device for producing staple fiber, comprising a body with melt jet feed channel, melt blown chamber, energy carrier supply nozzle for primary melt jet blown and with secondary melt blown nozzle, made annular and coaxial channel for melt jet supply and primary nozzle axis of blown melt - a This is to ensure that, in order to reduce energy consumption by reducing the injection of gases, the nozzle for the primary blowing of the melt jet is made in the form of an annular cone-shaped diffuser with the apex directed towards the nozzle for the secondary blowing and EHO between the feed channel and the melt jet nozzle blowing secondary device along the axis. 2. The device according to claim 1, characterized in that it is provided with a stabilizer, made in the form of a hollow rod with a hole in the conical apex and mounted for movement along an axis, with the lateral surface of the stabilizer forming an annular diffuser with the inner surface of the housing. (Reg. 2 Editor T. Mitejko Compiled by N.Ilinykh Tehred A. Kravchuk Correct or M. Demchik Order 1272/26 Circulation 428Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, Projecto st., 4 FIG.