RU43867U1 - DEVICE FOR MANUFACTURE OF INORGANIC FILLER - Google Patents

Abstract

A device for the manufacture of inorganic filler relates to the production of building materials and can be used in the chemical industry, metallurgy and other fields for the production of heat-insulating and filter materials. A device for manufacturing an inorganic filler comprises a glass melting furnace for preparing a melt from thermoplastic raw materials, a hole for supplying a melt to a mine, a die plate with holes for forming primary fibers, rollers for drawing primary fibers, a slot for feeding primary fibers to blow the combustion chamber of the gas-air mixture, a nozzle to form a jet of high-temperature energy carrier. What is new in the device is that it is additionally provided with a slot for feeding thermally intumescent materials into the nozzle for forming a high-temperature energy carrier, installed at a distance from the primary fiber feed slot for blowing in the direction of exit of combustion products. The technical result that can be achieved by using a device for the manufacture of inorganic filler is to increase the production rate and reduce the cost of manufactured materials due to more complete use of the potential of high-temperature energy carrier.

Description

A device for the manufacture of inorganic filler relates to the production of building materials and can be used in the chemical industry, metallurgy and other fields for the production of filter and heat-insulating materials based on superthin fiberglass and other mineral additives.

A known device for producing superthin staple fibers comprises a melting furnace, a spinneret plate, rollers for drawing primary fibers, a chamber for blowing primary fibers with a high-speed and high-temperature energy carrier, a feed chamber for high-speed and high-temperature energy carriers installed at an angle from 45 to 100 ° to the blowing chamber [A.s . USSR No. 1362717, C 03 V 37/06, 1987].

This design of the device makes it possible to reduce the number of non-fibrous inclusions and increase the length of the fibers while reducing their diameter, which improves the quality of the resulting fibers,

The disadvantage of this device is that it requires the additional use of a jet of high-speed and high-temperature energy in the process of fiber production, as a result of which the cost of fibers increases.

The closest in technical essence to the device that is claimed is a device for the manufacture of superthin staple fiber by blowing primary fibers [A.S. USSR No. 1070122, C 03 V 37/06, 1984].

The device comprises a furnace for preparing a glass melt, a hole for supplying a melt to a mine, a die plate with holes, a Combustion chamber for an air-gas mixture installed below the furnace for preparing a glass melt and provided with rollers for drawing primary fibers, a nozzle for forming a jet of high-temperature energy carrier, a slot in the nozzle for feeding primary fibers per blown. In such a device, the production of a superthin staple fiber with a diameter of up to 8 microns is achieved.

The disadvantage of this device is the high energy costs in the process of staple fiber production, due to the incomplete use of a jet of high-temperature energy at a temperature below 1400 ° C, the fiber does not melt, as a result of which the efficiency of such a device design is low, and the cost of the resulting fibers is high.

The technical problem to which the device for manufacturing an inorganic filler is directed is to improve its design by providing the device with an additional slot in the blow-off nozzle for supplying heat-expandable materials, which allows to increase the production rate of the inorganic filler and reduce the cost of its manufacture due to the use of a high-temperature energy carrier at a temperature of 600 - 1300 ° C.

The problem is solved in that the device for the production of staple fiber, which contains a glass melting furnace for preparing a melt from thermoplastic raw materials, an opening for supplying the melt to the production, a die plate with holes for normalizing primary fibers, rolls for drawing primary fibers, a combustion chamber of a gas-air mixture , a slot for supplying primary fibers for blowing, a nozzle for forming a jet of high-temperature energy carrier, is additionally equipped with a slot in the blowing nozzle for feeding intumescent materials, which is installed at a distance from the slot for supplying primary fibers for blowing in the direction of exit of high-temperature gases.

Providing a device for manufacturing an inorganic filler with an additional slot for supplying a thermally intumescent material to a jet of high-temperature energy carrier can significantly increase the productivity of the device and reduce the cost of high-temperature energy carrier.

A device for manufacturing an inorganic filler is shown schematically in FIG.

A device for the production of staple fiber contains a glass melting furnace 1 for melt preparation from thermoplastic raw materials, which is equipped with a hole 2 for supplying the melt to the production, a die plate 3, with holes 4 for forming primary fibers, rolls 5 for drawing primary fibers, slot 6 for feeding primary fibers for blowing, a slot 7 for supplying a heat-expandable material, a nozzle 8 for forming a jet of high-temperature energy carrier, a combustion chamber 9 for gas-air mixture.

The operation of the device for the manufacture of inorganic filler is carried out in this way. In a glass melting furnace 1, a melt A is prepared from thermoplastic raw materials, which, through the melt supply holes 2 for production, are fed to a spinneret plate 3, from which, under the action of hydrostatic pressure, it leaves through openings 4 forming in the form of "bulbs" B, from which primary fibers B are drawn from

by means of rollers 5. Elongated primary fibers through the slot 6 are continuously fed into a jet of high-temperature (1400-1600 ° C) energy carrier, which is formed in the combustion chamber 9 of the gas-air mixture and which passes through the nozzle 8 with high speed. As a result, the primary fibers melt and swell into superthin staple fibers. At the same time, a heat-expandable material is continuously fed into the nozzle of the combustion chamber of the gas-air mixture through a slot 7 for supplying thermally intumescent materials, which is fed into a jet of a high-temperature energy carrier which has settled below 1400 ° C and is expanded at a temperature of 600-1300 ° C.

Using the proposed device can significantly increase the productivity of the production of inorganic filler and reduce its cost due to the use for expansion of materials of high-temperature energy carrier which has settled down to a temperature of 600-1300 ° C.

Claims (1)

A device for manufacturing an inorganic filler, including a glass melting furnace for preparing a melt from thermoplastic raw materials, a hole for supplying a melt to a mine, a die plate with holes for forming primary fibers, rollers for drawing primary fibers, a gas-air mixture combustion chamber, a slot for feeding primary fibers for blowing , a nozzle for forming a jet of high-temperature energy carrier, characterized in that it further comprises a slot for supplying heat-expandable mate ialov a combustor nozzle energy source mounted at a distance from the slot for supplying the primary glass fibers to bulge toward the outlet of the combustion products.