SU1719328A1 - Device for obtaining mineral wool - Google Patents

Abstract

The invention relates to the production of thermal insulation building materials. The aim of the invention is to reduce the loss of mineral wool and the content of non-fibrous inclusions. This is achieved by the fact that the device for obtaining mineral wool, containing a multi-roll centrifuge 1, an air cabinet 3 and a fiber deposition chamber 2 with a% fender and a mesh conveyor 7, is provided with a slotted nozzle 5 in front of the precipitation chamber 2 and connected to it the fan 6, wherein the slot of the nozzle 5 is made at an angle of 10-15 °. to the generator of the jack drum 4, and the length of the nozzle 5 is equal to the width of the fiber deposition chamber 2.1 sludge. +. 3 y

Description

UNION OF SOVIET

SOCIALIST

REPUBLIC

1719328 A1

STATE COMMITTEE ON INVENTIONS AND DISCOVERIES UNDER SCSTAN OF THE USSR (51) 5 С 03 В 37/06

DESCRIPTION OF THE INVENTION

TO AUTHOR CERTIFICATE (21) 4779567/33 (22) 08.01.90 (46) 03/15/92. Bull. No. 10 (71) All-Union Integrated Design Research, Scientific Research and Design Institute of Thermal Insulation Materials and Products VPNII Heat Insulation (72) K.-K.K. Eidukevicius, I.I. Jutsis,

V.S.Simkevičius. V.-B.S. Syauris, I.A.A. Bartkevicius and E.I. Petrašun (53) 666.189.21 (088.8) (56) New technological equipment for the production of heat-insulating materials .'- Overview, no. 2, Moscow: TsNIIESstroymash, 1985, p. 22.

(54) DEVICE FOR PRODUCING MINERAL WOOL (57) The invention relates to the production of heat-insulating building materials. The aim of the invention is to reduce the loss of mineral fiber and the content of non-fibrous inclusions. This is achieved by the fact that the device for producing mineral wool containing a multi-roll centrifuge 1, an air cabinet 3 and a roller deposition chamber 2 with a baffle drum 4 and a mesh conveyor 7 is equipped with a slot nozzle 5 located in the fiberization chamber 2 in front of the baffle drum 4 and connected to it fan 6, while the nozzle slot 5 is made at an angle of 10-15 * to the generatrix of the baffle drum 4, and the length of the nozzle 5 is equal to the width of the fiberization chamber 2.1 il.

171932

The invention can be used in the manufacture of heat-insulating building materials, in particular for the formation of mineral wool fiber and fiber deposition.

The purpose of the invention is to reduce the loss of mineral fiber and non-fibrous inclusions.

The drawing schematically shows a device for producing mineral wool.

The invention consists in that. that an additional slotted nozzle and a fan connected to it are installed in the deposition chamber in front of the baffle drum under the centrifuge rollers, improve the fiber removal to the conveyor grid without preventing the unprocessed part of the melt from falling into the waste, as a result of which the content of non-fibrous inclusions in the mineral wool and the loss of cotton wool are significantly reduced .

The nozzle slit should be made at an angle of 10-15 ° to the generatrix of the jack drum. When the angle is less than 10 °, the air flow hits the kick drum and the cotton falls into the waste. If the angle is greater than 15 °, the air stream from the nozzle enters the air stream from the multi-roll centrifuge, which also increases the amount of cotton falling into the waste.

The device consists of a multi-roll centrifuge 1 adjacent to the fiberization chamber 2 and the air cabinet 3. A fiber drum 4 is mounted in the fiberization chamber 2 and an additional slot nozzle 5 connected to the fan 6 is installed at the same level as the fiber drum 4. The length of the nozzle 5 is equal to the width fiberization chambers 2. The nozzle slot 5 is made at an angle of 10-15 ° to the upper generatrix of the baffle drum 4. A mesh conveyor 7 is mounted in the fiberization chamber 2. By means of a fan 6, an amount of air is supplied to the nozzle 5 so that the flow rate when it meets the surface of the bump drum 4 not less than 10 m / s. When the speed of air flow from the slot nozzle in the indicated place is more than 10 m / s, more non-fibrous inclusions will fall into the mineral wool carpet, and when this speed is less than 10 m / s, more mineral wool will get into the waste. The amount of air passing through so5 ASW, at least 2 · m ³ per 1 kg of mineral wool.

The device operates as follows.

The fiber and non-fibrous inclusions coming off the rolls of a multi-roll centrifuge 1 are rejected by centrifugal force into the vertical plane of the rolls. When the fiber is blown away by the air flow supplied by the air cabinet 3, part of the fiber moves to the fiber deposition chamber 2, where 15 is deposited on the conveyor 7 in the form of a mineral wool carpet 8. The other part of the fiber, when leaving the lower rolls of the centrifuge 1, enters the zone of action of the air stream of an additionally installed slotted air co20 pl 5 and also moves into the fiber deposition chamber 2. The flow rate is such that non-fibrous inclusions practically do not change their trajectory and fall into waste. The air stream from nozzle 5 completely covers the space under the centrifuge 1, limited by the width of the chamber, creates an air curtain and prevents the entry of cotton wool into the waste.

Tests showed that when using this device, the amount of non-fibrous inclusions in mineral wool is reduced by an average of 15%, and the ingress of cotton into the waste is almost completely eliminated.

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Claims (1)

Claim A device for producing mineral wool containing a multi-roll centrifuge, an air cabinet and a fiber deposition chamber with a jack drum and a conveyor, characterized in that. that, in order to reduce the loss of mineral fiber and the content of non-fibrous inclusions, it is equipped with a slotting nozzle and a fan connected to it in a centrifuge in front of the baffle drum and the slit nozzle connected to it, the slot being made at an angle of 10-15 ° to the generatrix of the baffle drum, and the length 50 nozzles is equal to the width of the fiber deposition chamber.