RU2063387C1 - Device for cleaning and gathering mineral staple fibre in course of blowing-out - Google Patents

Abstract

FIELD: devices for cleaning and gathering staple fibre in course of blowing-out. SUBSTANCE: device has intake chamber whose bottom is made in form of belt conveyer and fibre, deposition chamber separated from intake chamber by reflecting shield forming slit above it which brings chambers in communication. Reflecting shield is made in form of peg conveyer whose inlet part adjoins outlet part of belt conveyer. Intake chamber is provided with device for reducing pressure in it and fibre deposition chamber is provided with device for removal of fibre from peg conveyer, supply of fibre to fibre deposition chamber and sealing up the slit in course of operation of device. EFFECT: enhanced efficiency. 3 dwg

Description

 The invention relates to a device for cleaning and collecting mineral staple fiber and can be used in the production of staple fiber from a glass charge, rocks, metallurgical slag and other types of mineral raw materials.

 A device is known that allows you to clean and collect mineral fiber when it is obtained by blowing.

 The device contains a diffuser, the output of which communicates with the fiber deposition chamber, at the bottom of which there is a mesh conveyor with a suction box under its working branch. The staple fiber from the blowing unit in the gas stream enters the diffuser, where the quenching of the velocity of the gas fiber stream takes place, and then into the fiber deposition chamber, where the fiber is separated from the gas fiber stream by sucking gas through the conveyor screen into a suction box. To ensure the cleaning of the fiber from non-fibrous inclusions / kings / diffuser is equipped with an inlet chamber for their reception. Kings, as heavier than staple ones, settle on the bottom of this chamber when the gas-fiber flow moves through the diffuser / I /.

 However, when using such a device, certain difficulties arise. So, the gas-fiber flow reaches the conveyor grid in the fiber deposition chamber, having a rather high speed. As a result of this, a pneumatic shock occurs and the fibers deposited on the mesh are displaced, which leads to the formation of an uneven thickness layer of fibers on the conveyor. In addition, only the heaviest of them enter the chamber for receiving kings, located at the bottom of the diffuser in its initial part. The rest are carried away by a high-speed flow and fall onto the conveyor grid, which significantly reduces the quality of products obtained from staple fiber.

 The closest technical solution to the invention in terms of technical nature and the achieved result is a device for cleaning and collecting mineral staple fiber during its blowing, containing a receiving chamber, the bottom of which is made in the form of a conveyor belt, and a fiber deposition chamber separated from the receiving chamber by a reflective screen with the formation above it the slots of the communicating camera / 2 /.

 This device provides, better than in the previous one, fiber cleaning from non-fibrous inclusions, however, its main disadvantage is the uneven thickness of the fiber layer formed on the mesh, which is also associated with pneumatic shock of the gas-fiber flow against the conveyor mesh.

 The basis of the invention is the task of creating a device for cleaning and collecting mineral staple fiber in the process of blowing it, in which the separation of the fiber from the gas fiber stream would be carried out even in the receiving chamber, i.e. before it enters the fiber deposition chamber while ensuring fiber purification.

 The problem is solved in that in a device for cleaning and collecting mineral staple fiber during its inflation, containing a receiving chamber, the bottom of which is made in the form of a conveyor belt, and a fiber deposition chamber separated from the receiving chamber by a reflective screen with the formation of a slit of the communicating chamber above it, the reflective screen is made in the form of a ring conveyor, the inlet of which is adjacent to the outlet of the conveyor belt, the receiving chamber is equipped with a means to reduce the pressure in it, and the chambers a forming means for detachably Kolkova conveyor fiber feeding to a forming chamber and sealing the slot during operation of the device.

 The invention is illustrated by drawings, where figure 1 shows a device for cleaning and collecting mineral staple fibers in the process of blowing, General view; figure 2 3 embodiments of the means for removing from the annular conveyor fiber, feeding it into the fiber deposition chamber and sealing the outlet during operation of the device.

 The device comprises a receiving chamber 1, which is connected through an inlet 2 to a fiber forming unit (not shown). In the upper part, the chamber 1 is equipped with a means for reducing the pressure in it, made in the form of an exhaust device 3, equipped with a net 4. The means for reducing the pressure can also be made in the form of a cyclone, closed by a mesh with openings in the upper or side walls of the receiving chamber, etc. .

 In the lower part of the receiving chamber 1 is installed a belt conveyor 5, forming its bottom. The input part of the ring conveyor 6 is adjacent to the output part of the conveyor belt 5. An outlet hole 7 is made in the opposite wall of the inlet 2 of the receiving chamber 1. In this case, it is a gap between the side and upper walls. Through the opening 7, the receiving chamber 1 communicates with the fiber deposition chamber 8, in the lower part of which a canvas-forming device 9 is placed. In the area of the outlet opening 7 and the output part of the ring conveyor 6, there is a means for removing fiber from the ring conveyor 6, feeding it to the fiber deposition chamber 8 and sealing outlet 7 during operation of the device. Said means can be made, for example, in the form of a drum 10 with blades.

 In other versions / cm. Fig.2.3 / it is a whipping ridge 11 or a removable conveyor 12. Between the described means and the walls of the receiving chamber 1 has a seal 13.

 The device operates as follows.

 Mineral fiber is obtained in the fiber forming unit, for example, by blowing primary fibers, and in the form of a gas fiber stream passes through inlet 2 into the receiving chamber 1. The excess pressure in the receiving chamber 1 is constantly relieved by means of its reduction means. In this case, the gases are removed through the exhaust device 3, and the mesh 4 prevents the fiber staple from exiting the chamber 1. Due to the constant release of excess pressure, the fiber settles to the bottom of the receiving chamber 1, which forms the belt conveyor 5. The latter feeds the fiber to the inlet part of the ring conveyor 6. Fiber entering the zone between the two conveyors, combed out by the rings of the conveyor 6. In this case, heavy kings fall between the rings and are removed from the receiving chamber 1, and light staples are picked up by the rings and the transport ruyutsya on.

 In the area of the output part of the annular conveyor 6, the fiber is removed from the last blades of the rotating drum 10 and fed through the outlet 7 into the fiber deposition chamber 8.

 Due to the fact that a rather thick layer of fiber accumulates in the zone between the drum 10 and the output part of the ring conveyor 6, and there is a seal 13 between the walls of the chamber 1 and the drum 10, the outlet 7 is sealed during operation and the gases from the receiving chamber 1 practically do not burst into fiber deposition chamber 8. At the same time, when the drum 10 rotates, its blades eject the fiber through the outlet 7 into the fiber deposition chamber 8, where the fiber is collected. In this case, the collection of fiber is combined with the simultaneous receipt of canvas from it in the canvas-forming device 9.

 The function of the drum 10 can also be performed by a knock-out ridge 11, which, while swinging, also ejects fiber into the chamber 8. A removable conveyor 12 can also be used as such means.

 Thus, the proposed device allows you to separate the fiber from the gas stream in the receiving chamber while cleaning it. The fiber ejected into the fiber deposition chamber settles at its bottom under its own weight. There are practically no turbulence in the fiber deposition chamber, which provides the “falling snow effect”, i.e. fiber settling in the form of a uniform and equally dense layer.

 The proposed device, in addition, allows the collection of mineral staple fiber in a wide variety of forms. So, for example, the canvas-forming device can be made in the form of a conveyor or drum / s / with a fiber suction system and other devices for forming the canvas. The fiber can be fed directly from the fiberization chamber to the pulper to produce cardboard and other products in a wet manner. Finally, the absence of hot gases in the receiving chamber, by which the primary fibers are blown, allows continuous fiber selection from this chamber for packaging or direct use without periodically shutting down the device. YYY2

Claims (1)

 A device for cleaning and collecting mineral staple fiber in the process of inflation, containing a receiving chamber, the bottom of which is made in the form of a conveyor belt, and a fiber deposition chamber separated from the receiving chamber by a reflective screen with the formation of a slit above it, communicating camera, characterized in that the reflective screen made in the form of a ring conveyor, the input part of which is adjacent to the output part of the conveyor belt, the receiving chamber is equipped with a means to reduce the pressure in it, and the fiber deposition chamber COROLLARY pickup fibers Kolkova conveyor, which serves for feeding to a forming chamber and sealing the slot during operation of the device.

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