SU1599120A1 - Device for impregnating roll materials - Google Patents

Abstract

The invention relates to equipment for the impregnation of a moving web of porous material and can be used in the building materials industry in light industry. The goal is to increase the intensity and quality of impregnation of the material. For this, the fixed perforated plate is made of spaced upper 5 and lower 4 parts. The pressure box 1 is made multi-section. A movable perforation plate 10 is mounted above each section in the gap between the upper and lower parts of the fixed perforated plate. These perforated movable plates are designed to sectionally increase the frequency of matching their holes with the holes in the fixed plate. Holes with fixed and movable perforated plates are arranged in the same way. 2 Il.

Description

1

The invention relates to equipment for the impregnation of a moving web of porous material, such as roofing paperboard, and can be used in the building materials industry and in the light industry.

The aim of the invention is to increase the intensity and quality of the impregnation of the material.

FIG. 1 schematically shows the proposed device; in fig. 2 - pressure box section.

The device for impregnating the roll materials comprises a pressure box 1, divided by partitions 2 into several sections 3. On top, the pressure box 1 is closed by a fixed perforated plate consisting of lower and upper parts 4 and 5, which are installed at a short distance relative to each other. The walls 6 of the pressure box 1 and the partitions 2 between the sections 3 have jackets 7 for the heat transfer medium supplied for heating working agents such as bitumen. For uniform supply of the working agent at both ends of each section 3, the nozzles 8 of the collectors 9 of the pressurized working agent supply system are installed. Above each section 3, in the gap between the upper and lower parts 4 and 5 of the fixed perforated plate, a movable perforated plate 10 is installed, which is connected to the actuator II and is made spring-loaded. The holes 12 in the fixed perforated plate and the movable perforated plates 10 are arranged in the same manner in staggered order, thereby eliminating sections of the material web 13 that are not directly affected by the pulsing jets of the working agent. Under the pressure box 1 there is a pan 14 for collecting surplus working agent. The means for leveling the web 15 consists of several heated rollers 16 installed above the pressure box 1 parallel to the surface of the fixed plate and can be rotated around the axis 17.

The device works as follows. Through the nozzles 8 of the collectors 9 of the pressure feed system, the working agent enters from two sides in section 3 of the pressure box 1. With the drives 11 turned on, the movable perforated plates 10 make a reciprocating motion across the material web 13. Moreover, the frequency of movement of the movable plates 10 is not the same, it increases as the web 13 moves. The holes in the lower and upper parts 4 and 5 of the fixed perforated plate, as well as in the movable perforated plate 10 at the time of its full alignment with the fixed perforated

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tiled plate - coaxially. During the reciprocating movement of the movable perforated plate 10, a constant alternation of the narrowing and widening of the channels takes place for the passage of the working agent formed by the openings 12 in the plates. The working agent under the pressure created in sections 3 of the pressure box 1 passes through the holes 12 in the plates and in the form of pulsating jets is fed to the underside of the treated web 13. When the web 13 passes over the first section 3 of the pressure box 1, the working agent falls on the untreated the surface of the porous material penetrates to a certain depth inside the material. To “push the first layer deep into the material with the working agent's jets, more force must be applied, therefore the frequency of the jets pulsation supplied by the second section 13 along the movement of the web 13 is larger than that of the first section 3, which leads to an amplification of the acoustic wave a layer of working agent formed between the upper part of the fixed perforated plate and the material being processed. The following sections work in a similar way. Under the influence of the working agent jets, it is possible to raise the web 13, and at a different height depending on the jet pulsation frequency. The rollers 16 of the means for leveling the web 15, keeping the web 13 parallel to the working surface of the pressure box 1, contribute to the uniformity of its impregnation. When repairing or eliminating a web breakage 13, the means for leveling the web 15 are rotated around an axis 17.

Claims (1)

Invention Formula A device for impregnating roll materials, comprising a pressure box with a fixed perforated plate and means for leveling the web, characterized in that, in order to increase the intensity and quality of the impregnation, the fixed perforated plate consists of upper and lower parts arranged with a gap between the upper and lower parts, over each section of which, in the interval between the parts of the fixed perforated plate, a movable perforated plate is installed, with the movable perforated plates Ita Multiple Feature Select configured to increase the frequency of their holes align with the apertures in the stationary p.tite and the apertures in the fixed and movable perforated plates are arranged in the same way. 5 4 (rig 2