RU2004430C1 - Method and device for compression molding of coiled waterproofing material - Google Patents

Description

duplicate metal foil may be supplied which is pre-cleaned and degreased. The foil is pressed onto the mixture at the same time as the mixture is pressed onto the substrate. During the compaction process, a volumetric pattern, for example corrugations, is applied to the web material. The ratio of plastic waste to rubber waste is 1: 9-9: 1 volume parts. The mixture can be preheated in the hopper to 80 ° C, and during its movement through the moving substrate and through it air heated to 200 ° C can be blown.

The installation for pressing roll waterproofing material comprises a feed table for moving the substrate, a hopper, a leveling device, a leveler, press rolls and a cooler. The installation is equipped with heating devices mounted between the leveler and the press rolls, in which the heaters are fixed. The cooler is located directly behind the press rolls, and after the cooler, a knife-calibrator of roll material is mounted in width. The installation is additionally equipped with a feed device. Onto the press rolls of the backup foil made in the form of a sequentially located contact welding machine, an adhesion spraying chamber, and cleaning and degreasing of the foil. The metering hopper is equipped with heating elements, and the feeding table is perforated and a hot air supply is mounted under it. The surface of the press rolls is covered with a volumetric pattern.

Comparison of the proposed method with the prototype shows that the proposed technical solution is characterized in that rubber waste is used as the rubber-containing component, and powdery waste from the production of plastics of the polyolefin group in a ratio of 1: 9 to 9: 1 by volume is used as thermoplastics. the mixture is heated to a pressing temperature during its movement on a moving substrate to a pressing station with a substrate and, after pressing, it is sharply cooled to a temperature below 65 ° C and calibrated in width. In addition, the mixture can be heated in the hopper and on the moving substrate by blowing hot air through the substrate and the bed. The waterproofing material itself during the pressing process can be duplicated with a metal foil applied from the side of the open surface of the mixture; in the process of Formov, he may not be given a three-dimensional shape.

The device for pressing roll waterproofing material differs from the prototype in the presence of heating devices mounted between the equalizer and the press rolls in which the heater is mounted, as well as the placement of the cooler directly behind the press rolls and the presence of a calibrator knife mounted after the cooler. In addition, the installation is additionally equipped with a feed device to the press rolls of the backup foil. The structure of this device includes a sequentially located resistance welding machine and a chamber for adhesive deposition, cleaning and degreasing. The feed table may be perforated and a hot air supply source is located underneath, and the metering hopper may be provided with heating elements. In order to give the waterproofing material a volumetric texture, the surface of the press rolls is covered with a volumetric pattern.

The drawing shows a diagram of the proposed device.

The substrate 1, which can be used as woven and non-woven textile materials, chemical fiber waste, etc., is fed from the drum 2 to a stitching device 3, connecting the ends of the substrate sheets to a continuous tape, and then to the drive 4, from which it gets on the feeding table 5. The feeding table can be made in the form of a smooth platform located between the drive and the press rolls b, or in the form of a closed conveyor 7 with flat working surfaces of the bearing links forming a base ki continuous strip. At the beginning of the feed table, a metering hopper 8. is installed in which there is a mixture of thermoplastics and rubber-containing components. As thermoplastics, environmentally friendly powdery waste from the production of plastics of the polyolefin group can be used, and rubber waste, for example, crushed to a state of crumbling of a tire of a vehicle, as a rubber-containing component. The ratio of the constituents of the mixture is from 1: 9 to 9: 1. The mixture is prepared separately, and it enters the hopper already in the finished ground state. The hopper hole 9 is arranged to adjust the feed width of the mixture 10 to the substrate 1 depending on the width of the substrate. On the lower part 11 of the hopper can be mounted heaters 12, previously

heating the mixture in the hopper to 80 ° C. Behind the hopper, a leveling device 13 is installed above the feed table, which calibrates the thickness of the mixture layer on the substrate. The mixture heating system, in addition to the heaters 12, contains infrared emitters 14 mounted above the supply table, and an air box 15 with a fan heater 16 and an air heater 17 that supply heated air through the perforation 18 of the supply table to the substrate and the mixture layer, heating them before entering pressing rolls 6 to 150-200 ° C, i.e. to the compression temperature of the mixture. Depending on the used substrate materials (airtight film type or textile) and the polymer component of the mixture, the heaters 12 and the blower-fan 16 with the air heater 17 may not be used; in this case, the mixture is heated only by the radiator 14.

The mixture heated on the substrate enters the press rolls 6 and is compressed with the substrate at a pressing temperature, i.e. 150-200 ° C, and then immediately after the press rolls it enters the cooler 19, in which a temperature of 10 ° C is maintained. After the cooler, the compressed material acquires a temperature of no higher than 65 ° C, enters the knife calibrator 20, which removes the edge parts of the material, and the remaining web is packed on the unit 21.

If a duplicate metal foil 22 is required to be applied to the waterproofing material, then the foil tape is fed onto the mixture layer 10 heated to the melting temperature immediately before entering the press rolls 6. Before this, the foil located on the drum 23 enters the welding unit 24 of its ends into a single panel that undergoes adhesive

spraying, cleaning and degreasing in the chamber 25. The press rolls 6 are equipped with heaters 26.

Depending on which is required

the cross-sectional drawing of the waterproofing material, the surface of the press rolls may have a figured profile. In particular, the finished material may have corrugated, waffle, etc. surfaces, on a facing foil any drawing, etc. can be pressed.

The feed rate of the mixture 10 from the hopper 8, the thickness of the layer of the mixture on the substrate 1, the temperature of the mixture at the inlet

the press rolls 6 and the speed of the substrate 1 along the feed table 5 are strictly synchronized with each other and with the feed speed of the foil 22.

The foil can be used steel, copper, aluminum. Its presence allows one to significantly improve the insulating properties of the material, especially when insulating pipes.

The obtained roll waterproofing material is malleable in processing, well nails and easily adheres to the surface of building structures. Weight - 0.9-2 kg / m2. Flexibility on a rod with a diameter of 20 mm - up to 0 °. Rolled waterproofing material obtained by the described method is water resistant for 2 hours under a pressure of 2-2.5 MPa.

(56) 1. USSR Copyright Certificate No. 580814, cl. B 32 B 27/32, 1969.

2.US Patent No. 3335050, CL 161.211, 1967.

3. The author's certificate of the USSR No. 1384691, cl. E 04 D 5/06, 1984.

4. Japanese application No. 59-15823, cl. B 28 B 3/02, 1976.

5. Copyright certificate of the USSR N: 1488415. cl. E 04 D 5/00, 1986.

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Claims (11)

SUMMARY OF THE INVENTION 1. A method for compressing a roll of waterproofing material; a mixture of thermoplastics and a rubber-containing component gQ component deposited on a substrate, followed by pressing them when heated to 150-200 C, characterized in that powdered polyolefin group plastic wastes are used as thermoplastics, and rubber wastes as a rubber-containing component, 55 which are fed to the moving substrate are leveled and heated as they move to the pressing station to the pressing temperature; then, at the same temperature, they are compressed with the substrate, sharply cooled below 65 ° C and calibrated in width. 2. The method according to claim 1, characterized in that before pressing the mixture of rubber waste and plastic waste with a substrate, a duplicate and cleaned metal foil is fed from above to the mixture. 3. A method according to claims 1 and 2, characterized in that during the pressing process a three-dimensional pattern is applied to the web material. 4. The method according to claims 1 to 3, characterized in that the waste from the production of plastics is mixed with waste / s rubber in bulk 1: 9 to 9: 1 ratio. 5. The method according to claims 1 to 4, characterized in that the mixture is preheated before being fed to a moving substrate to 80 ° C. 6. The method according to claims 1 to 5, characterized in that air heated to 150-200 C. is blown through a moving substrate and a mixture of plastic production waste and rubber waste. 7. Installation for pressing roll waterproofing material, comprising a feed table for moving the substrate, a hopper, a screed, a leveling device, compression rolls and a cooler, characterized in that the installation is equipped with heating devices mounted between the screed and pressing rolls, in which 2Q heaters are fixed, and the cooler is located directly behind the press rolls, and after the cooler mounted knife-calibrator of roll material in width. 8. The apparatus according to claim 7, characterized in that it is additionally equipped with a backup foil feeding device for the press rolls made in the form of a sequentially located contact welding machine, an adhesion spraying chamber, and foil cleaning and degreasing. 9. Installation according to claims 7 and 8, characterized in that the metering hopper is equipped with heating elements 1. 10. Installation according to claims 7 to 9. characterized in that the feed table is perforated and a hot air supply is mounted under it. 11. Installation according to claims 7-10, characterized in that. that the surface of the press rolls is covered with a volumetric pattern. W