SU1750953A1 - Arrangement for preparing mixes in machine for extruding chemical fibers - Google Patents

Abstract

The invention relates to mixers and allows to simplify the design and reduce their energy consumption. To achieve this goal, in the device, the central capillary channels are placed in a grid of peripheral channels connected through the first loading window to the supply manifold, and the central channels through the second loading window are connected to a variable feed pump, the discharge window being connected to the metering pump; extension machine, 2 zp f-ly, 3 ill.

Description

The invention relates to mixers and can be used to prepare colored material mixtures for a spinning machine in the manufacture of man-made fibers.

A device for feeding the solution to the spinning machine filler is known, comprising a pipeline on which a metering pump for the solution is installed, with a filter finger connected to the spinneret. A mixer, for example, of a blade type, is connected to the dye metering pump before the metering pump. The mixer and the dosing pump have a common drive.

However, such a device is characterized by insufficient technological possibilities due to the need to stop work when switching to a different color for cleaning containers and material transfer channels.

The closest in technological essence is a device for producing a polymer mixture, comprising a cylindrical body, loading and unloading windows, an outer hollow screw with screw thread, connected to a rotational drive, an inner screw located in the cavity of the external auger, equipped with a drive opposite to the external auger rotation and having screw thread, opposite in the direction of the screw thread of the outer screw. Between the ridges of the screw thread of the outer screw in the drainage zone of the molten mixture, wire holes are made to align the channels of the inner screw and the outer screw, whose shaft in the drainage zone of the melted mixture is made conically expanding in the direction of the discharge window.

In succession, the zone of melted mixture removal is the zone of melting of the refractory components and the output of the meltXI SL

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mixture in the channel of the outer screw. In the zone of withdrawal of the molten mixture, the shaft of the inner screw is made conically tapering in the direction of the discharge window, in the melting zone of the refractory components, the shafts of the outer and inner screws are cylindrical. In the area of output of the molten mixture, the shaft of the outer screw is conically tapering in the direction of the discharge window and has through holes for communication channels of external and internal screws. The through-holes of the outer screw are inclined to its longitudinal axis with the formation of an obtuse angle in the zone of withdrawal of the molten mixture and an acute angle in the zone of extraction of the molten mixture.

The disadvantage of such a device is the complex construction of the mixer, including two drive elements with high energy consumption. Such devices cannot be placed near the spinning nozzles of the spinning device.

The aim of the invention is to simplify the design and reduce the energy intensity of the mixing device.

This goal is achieved by the fact that in the known device for producing a mixture containing loading and unloading windows and co-located with one another the central and peripheral channels for feeding the components, the following changes were made: the capillary central channels are located in through the first loading window to the component supply manifold, and the capillary case through the second loading window is connected to an adjustable PS pump, the unloading window of the mixing device is connected to the metering gear pump of the spinneret of the spinning machine; the area of the living section of the central and peripheral canals is the same, and the diameter of the central channel capillary is 0.5 to 1.3 mm.

Fig, 1 shows a device, side view with a partial cut; in fig. 2 - the same, front view; in fig. 3 - the location of the central and peripheral channels.

The device comprises a mixing device t comprising windows 2 and 3 of loading and window 4 of unloading and coaxially placed one in the other central channels 5 and peripheral channels of supply of the mixed components. The capillary central channels 5 are placed in the grid 7 of the peripheral channels 6, connected through the first loading window 2 and the openings 8 to the supply manifold 9 of one mixed component. 8 holes are made in

a cylindrical shell 10 of the housing 11 of the capillary channels 5, bent around an annular container 12 connected to the first window 2 of the load.

Central channels 5 with their own entrances,

located in the housing 11 of the capillary channels 5, through a cylindrical tank 13 through the second opening window 3 connected to the pump 14 adjustable flow.

0 The unloading window 4 is connected to the chamber: a swarm of 15 mixing components, one of which comes out of the peripheral channels b, and another rod comes out of the central capillary channels 5. About the 4 unloadings are connected to the dosimetric gear pump 16 of the spinner die cars. The area of the living section of the central canal 5 of the capillary and the area of the living section of the peripheral canal 6 are the same, and the diameter of the central canal 5 of the capillary is in the range from 0.5 to 1.3 mm.

The device works as follows.

5 One mixed component of the same color from the collector 9 through the first loading window 2 fills the tank 12, and through the holes 8 - the space between the housing 11 and the grid 7. This peripheral channels

The 0 component in the form of tubular straws enters the chamber 15. Another component from the pump 14 through the second loading window 3 and the cylindrical tank 13 and the central channels 5 in the form of rods inside the straws of the first room nohtMta also enters the chamber 15.

Filling the chamber 15, through the discharge window 4, the mixture enters the gear pump 16. With the pump 16, the mixture is additionally stirred and fed into the spinneret

With spinning machine. Pump 14 adjustable flow control the flow of the second component at a constant flow of the first component from the manifold 9. This regulates the composition of the mixture and its color depending on

5 ratios in her multicolored components.

Compared with the prototype, the proposed device allows to simplify the design of the mixing device,

0 exclude power-consuming augers, screw channels to replace hollow channels placed one in another. The quality of blending, the homogeneity of the mixture, are ensured by the supply of components by thin-walled straws with thin rods in them. The gear pump of the spinning machine connected to the discharge port helps to simplify the design of the mixing device and thereby ensure high-quality mixing to obtain a homogeneous mixture. Connecting one loading window to a constant pressure collector, and another loading window to a variable feed pump, allows you to simply adjust the ratio of components and the mixture, change the color of the mixture when using two-color components. This makes it easier to go from one color to another.

The diameter of the central channel capillary is greater than 1.3 mm and does not ensure the homogeneity of the mixture, the uniformity of mixing of the components. The diameter of the central capillary is less than 0.5 mm, which makes manufacture difficult, and also causes clogging of the capillary in production, which reduces the homogeneity and quality of the mixture, since this component is not supplied through all central channels. The proposed design is simpler, more compact, which ensures its convenient use with spinning dies.

Claims (2)

Claims 1. Device for preparing a mixture in a machine for forming chemical filaments, containing a supply manifold, a variable feed pump, a mixing device having loading windows and an unloading window and eccentrically arranged central and peripheral channels for supplying components, characterized in that, in order to simplify the design and reduce the intensity of the mixing device, the device has a network of central and peripheral channels, the network of peripheral channels is connected to the supply manifold via one of the loading windows, and the network of central channels is connected to the pump Submission 2. The device according to claim 1, in which, in order to improve the quality of mixing, the area of the living section of the central and peripheral channels is the same, and the diameter of the central channel is 0.5-1. 3 mm. 3, Pop-1 device, characterized in that the discharge window is connected to the metering pump of the machine for forming chemical threads. figure 1 FIG. 2