SU1315318A1 - Method for manufacturing fibrous articles - Google Patents

Abstract

The invention relates to the production of building heat and sound insulating materials and products based on mineral or glass wool. The goal is to increase the compressive strength of products. According to the method of making fiber products with a vertical orientation of the fiber by forming a fibrous carpet, impregnating it with a binder, longitudinal compaction followed by pre-pressing, heat treatment and cutting wave formation, the waves are fixed in the vertical position and the longitudinal compaction is carried out simultaneously by means of a plate, moving it along a closed path, in which the area of wave formation and carpet compaction with the exit section of the carpet strip form mutually perpendicular straight lines. At the same time, the speed of movement of the plank in the lower horizontal part of the trajectory is greater than the speed of the conveyors of reduction of the vertically layered carpet, but less than the speed of the conveyors of the supply of horizontal helium carpet. 1 hp j f-ly, 4 ill. (L 00 SL

Description

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The invention relates to the production of building heat sound insulation Oizol cionic materials and products based on mineral or glass wool.

The purpose of the invention is to increase the compressive strength of products.

FIG. 1 shows a scheme for the implementation of the proposed method; in fig. 2 shows the path of movement of the strip in FIG. one; in fig. 3 and 4 - a mineral carpet with parameters describing a vertically layered structure.

The mineral-carpet 1 with a horizontally layered structure is fed by a roller conveyor 2 to the forming bar 3, which moves along a predetermined trajectory 4. The bar's movement trajectory is chosen so that when the bar moves in the lower part a-b (Fig. 2 ) its movement was horizontal, and its speed was lower than the speed of a horizontally layered carpet and at the same time greater than the speed of the roller conveyors 5 reduction. Thus, due to the difference in the speeds of the bar 3 and the carpet 1, a wave is formed in front of the bar. Due to the difference in the speeds of movement of the strip 3 and the conveyors 5 of compression, the carpet is compacted into pro-. down direction. The resulting waves are strictly fixed in a vertical position, and the carpet acquires a vertically layered structure. After the carpet wave is fixed in the vertical position, the strip 3 rises upwards along the vertical straight d-c (Fig. 2) trajectory 4, without disturbing the already formed carpet% and moving to its original position. The trajectory 4 of the movement of the bar 3 is closed, and, the portions a-b and d-c lie on the perpendicular lines xxx and yy. The ratio of speeds is determined so that when forming a vertically layered carpet the following condition is met: the ratio of the height of the vertically layered carpet h to the step t of fiber formation (Fig. 3) is more than two.

The higher the ratio ---, the more vertical the fiber orientation in the carpet. With the ratio - 2 (fig. 3), the carpet has a weak orientation of the fiber in the vertical position. Formed by the proposed method carpet act 82

It then goes to heat treatment chamber 6. Longitudinally compacted and crimped Mineral Cotton, .-. During heat treatment in the polymerization chamber, the carpet has a much lower hydraulic resistance when the coolant passes through it, since it has a vertical orientation of the fiber, and this results in

good porosity of the carpet. The mechanical loads on the conveyors of the heat treatment chamber are also reduced, since the carpet in front of the chamber is compressed by roller conveyors. Carpet itself

has a small volumetric mass of ISO-ISO kg / cm. The carpet heat treatment time is also shortened due to a decrease in hydraulic resistance and an increase in the rate of heat carrier penetration.

The resulting products have higher compressive strength. With the consumption of phenolic alcohols 4-5% strength of products

10% compression according to the proposed method is 0.063-0.098 MPa. The strength of the plates according to the known technical solution at a flow rate of 5-6% phenol alcohols is 0.041-0.065 MPa.

F o rmula of the invention

Claims (2)

1. A method of making fibrous products with a vertical orientation of the fiber by forming a fibrous carpet, impregnating it with a binder, longitudinal compaction followed by pressing, heat treatment and cutting, and in order to increase the compressive strength of the products, wave formation. , the fixation of the waves in a vertical position and the longitudinal compaction are carried out simultaneously with the aid of a plank, moving it along a closed trajectory, in which the wave-forming and compaction section of the carpet with the exit section Lanka from carpet form mutually perpendicular straight. 2. A method according to claim 1, characterized in that the speed of movement of the plank in the lower horizontal portion of the trajectory is greater than the speed of the converters of the vertically laminated carpet, but less than the speed of the conveyors of the horizontal laminated carpet. . 2 / and {11 t 1TPTGFT1 Vj Fuy. / ф.З Compiled by N. Kosheleva Editor L. Gratilo Tehred A. Kravchuk Order 2261/18 Circulation 524Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4 Phil.