RU2618256C1 - Multi-film sleeved feeder for forming fiber from melt rocks - Google Patents

Abstract

FIELD: mining.

SUBSTANCE: in the construction of the feeder slot, consisting of the side walls of the housing, the end walls of the housing, the flange junction, current leads, current transfer consoles, perforated screen heater, the die plate with spinnerets, some rocks melt heating functions transferred to the screen heater. The thickness of the perforated screen heater thickness varies from 1/5 to 1/2 spunbond field, depending on the acidity of the used melt module rocks. The installation height of the perforated screen heater above the upper plane of the spinneret plate with spinnerets is in the range of 5-15 mm depending on diathermancy melt.

EFFECT: increased productivity by reducing feeder wettability, reduction of emission spunbond field, reducing operating current feeder.

2 dwg

Description

The invention relates to a device for the production of continuous, staple and air-drawn fibers from rock melts in a single-stage method.

One of the reasons for the difficulty of forming fibers from a melt of rocks is associated primarily with the specific features of these high-temperature materials. One of these features is the high wettability of platinum rhodium alloys used for the manufacture of feeders at high temperatures, which narrows the working temperature range of the fiber formation.

It is known that the formation of high-quality fiber requires a uniform temperature homogeneous melt and its maximum temperature during fiber formation, and the high temperature of the die field provokes its wettability by the melt.

The efforts of designers of multi-filler slot feeders are aimed at eliminating the possibility of wetting of the die field by the melt of rocks, which is achieved by stabilizing the temperature of the melt above the die plate, uniform heating of the die plate by eliminating the temperature inhomogeneity of the die plate itself or by reducing the effect of changes in its temperature on the melt.

The closest analogue to the proposed invention is: "Multifilter feeder for the manufacture of continuous fiber from a melt of rocks" (RF patent No. 2087435, 10.23.1993, class C03B 37/09). The specified device, having good ability to improve the homogeneity of the melt entering the spinneret plate, has several disadvantages with increasing spinneret and, as a consequence, the width of the spinneret field:

- unstable heating across the width of the feeder;

- high weight of the feeder;

- high working current.

Also known is the “Die feeder for producing continuous fiber from a rock melt” (RF patent No. 2167835, 07.25.2000, class C03B 37/09). This feeder, having a long service life and uniform heating of the die field with one supporting cooler, with an increase in die feeding of the feeder or having two or more supporting coolers, is unevenly heated across the width of the die field.

The technical and economic result of the invention is to increase the productivity of the feeder when forming continuous, staple and air-drawn fibers from the rock melt by reducing the tendency to wettability of the die field by the rock melt, to reduce the heat loss of the die die field by radiation and, as a result, to reduce the operating current feeder, increasing the temperature range of the fiber forming.

A multi-filler slot feeder for forming fiber from a rock melt with a perforated heater screen is shown schematically in FIG. 1, FIG. 2. The technical and economic result is achieved due to the fact that in the slot feeder for forming fiber from rock melts in a single-stage method consisting of side walls of the body (upper and lower parts) 1 (Fig. 1, Fig. 2), end walls of the body (upper and lower parts) 2 (Fig. 1, Fig. 2), abutment flange 3 (Fig. 1, Fig. 2) for tight contact with a slotted stone, die plate with dies 7 (Fig. 1, Fig. 2 - dies (not shown)), current leads 4 (Fig. 1) installed at the ends of the die field with dies 7 (Fig. 1, Fig. 2), at the junction of the bottom of the parts of the end walls of the housing 2 (Fig. 1, Fig. 2), the current transfer consoles 5 (Fig. 1) connecting the current leads 4 (Fig. 1) with the end walls of the housing 2 (Fig. 1), between the upper and lower parts side and end walls mounted perforated screen-heater 6 (Fig. 1, Fig. 2, perforation is not shown).

толщины фильерного поля до

, в зависимости от модуля кислотности применяемого расплава горных пород и его вязкостной характеристики. Высота установки перфорированного экрана-нагревателя 6 над верхней плоскостью фильерной пластины с фильерами 7 находится в пределах 5-15 мм в зависимости от теплопрозрачности расплава.The thickness of the perforated heater screen 6 (Fig. 1, Fig. 2) varies from

thickness of the die up to

, depending on the acidity modulus of the used rock melt and its viscosity characteristics. The installation height of the perforated heater screen 6 above the upper plane of the spinneret plate with dies 7 is in the range of 5-15 mm, depending on the thermal transparency of the melt.

Since the perforated heater screen, in contrast to the die field with the dies, does not come in contact with air flows, it is more stable in temperature than the die field and does not lose it to external radiation. Being close to the die field with dies, the perforated heater screen uniformly heats the rock melt and transfers the temperature to the die field with the melt flow, which allows a lower current to be supplied to the die field with dies, thereby reducing heat loss to external radiation.

Claims (1)

Multi-slotted feeder for forming fiber from rock melt, including side walls of the casing (upper and lower), end walls of the casing (upper and lower), perforated heater screen, contact flange, die plate with dies, current leads, current transfer consoles, characterized the fact that the perforated heater screen is made from

before

the thickness of the die field and the height of its installation from the die field of 5-15 mm to increase the current transfer for heating the melt from the die field to the perforated heater screen, which reduces the radiation of the die die field of the feeder and, as a result, the energy consumption, reduces the possibility of wetting the die field with melt rocks, which makes it possible to increase the operating temperature range of the fiber formation.

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