SU1745559A1 - Device for manufacturing inorganic foam plastic products - Google Patents

Abstract

Use: manufacture of building materials, production of heat insulating plates from foamed materials. SUMMARY OF THE INVENTION: The device comprises a composite mixture feeder forming a unit. Above the lower feed conveyor are sections of the heating chamber. The upper iodopressing elements are made in the form of uneven forming rolls placed between each adjacent sections with microwave radiators and at the exit from the forming zone. 3 il.

Description

The invention relates to equipment for the manufacture of foam products, in particular thermal insulation from inorganic foam in the manufacture of building materials, and can be used in other industries.

A known line for the manufacture of heat insulating materials based on liquid glass, comprising a component mixture dosing unit, a transport vaeji, a mixer, a heat chamber, a calibrating element and a transverse cutting unit,

The disadvantage of this line is dl. the manufacture of thermal insulation materials is: the impossibility of manufacturing products of various volumetric configurations; complexity of calibrating

an item; low productivity due to long exposure of the heat insulating material when it is molded in a heat chamber; high consumption of heat energy, in particular electricity, due to the heat-insulating material being heated at high temperature for a long time at high temperature; the presence of heat losses during the unloading of the heat insulating material from the heat chamber and, finally, the presence of scrap due to the appearance of microcracks in the heat insulating material due to the unevenness of its heating in thickness, as well as during its unloading due to the temperature difference between the heat chamber and the environment.

The closest to the proposed results achieved and technical vj

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This entity is a device for continuous production of layered products, containing a composite composition feeder, forming a unit in the form of a lower feed conveyor and upper subpressing elements located one above the other, a heating chamber made in the form of sections mounted above the lower conveyor along its length.

The disadvantages of the known device for continuous production of layered products are its insufficient capacity and quality of manufactured products.

The purpose of the invention is to improve the performance of the device and the quality of manufactured products.

This goal is achieved by the fact that in a device for the manufacture of products from inorganic foam containing a composite composition feeder, forming a unit made in the form of a lower supply conveyor and upper subpressing elements arranged one above the other, a heating chamber made in the form of sections installed above the lower conveyor along its length, the upper subpressing elements are made in the form of a series of uneven forming rolls, mounted between each adjacent sections and at the exit e from the formation zone.

Fig. 1 shows a device for the manufacture of products from inorganic foam, a general view; in FIG. 2, section A-A in FIG. one; in fig. 3 - a node of the upper subpressing elements.

A device for the manufacture of products from inorganic foam contains a feeder 1 of composite mixtures forming a unit including one below another feed conveyor 2 with molds 3 mounted on its links x 4 with rollers 5, and upper pressing elements 6 "

Link 4 of the conveyor 2 rollers 5 in the molding zone interact with fixed horizontal guides 7

Forms 3 are made with a movable bottom 8 and secured to links x 4 by means of fastening elements 9. At the bottom 8 of the form 3 spring-loaded pushers 10 mounted in guides 11 are mounted. Pushers are made from. rollers 12 installed with the possibility of

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the possibility of contact with the mechanism of their rise, made, for example, in the form of a power cylinder 13 with a pad 15 fixed on its stem 14, interacting with the rollers 12. The mold 3 and its bottom 8 can be made of different sizes and configurations.

In the forming zone of the device, sections 16 of the heating chamber are installed along the length of the lower conveyor 2. Moreover, between each adjacent sections 16 and at the exit from the forming zone, upper subpressing elements 6 are arranged, made in a series of uneven forming rolls 17 mounted rotatably on a frame 18 associated with a frame lifting mechanism 19 for adjusting the gap between forming rolls 18 and form 3. The forming rolls 17 are provided with a synchronous rotation mechanism, made in the form of 17 sprockets 20 attached to the end of each forming roll 17, interconnected by a chain 21, for example a Gall chain. The sections 16 of the heating chamber are made with microwave radiators (not shown) and placed in them so that the zones of maximum thermal radiation of adjacently arranged radiators are displaced one with another with the possibility of overlapping the article 22 in the form 3 over its entire area.

The device works as follows.

On links 4 of conveyor 2, forms 3 are assembled of the appropriate configuration and dimensions. The mechanism 19 40 for lifting the frame 18 installs the forming rolls 17 so that the forming rolls 7, facing the entrance of the form 3, are placed with a certain gap above its upper edge 45, and the forming rolls 17, facing the exit of the form 3 - at the level its edges, and thus, predetermine the desired thickness of article 22.

Such an installation of the subpressing elements 6 at a certain angle ensures the gradual compaction of the composite mixture in the form 3, while preventing its extrusion in the upper position.

When the conveyor 2 moves in the upper position, the link 1 with the firms 3 rolls on the rollers 5 and the guides 17, which ensures straight lines

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Their linear translation from the entrance to the exit in the molding zone. The bottoms of the 8 forms 3 under the influence of springs (not indicated) of the pusher 10 are in the lower (operating) position, and the rollers 12 hang freely between the guides 7. j At the approach of the forms 3 to the feeder 1 .. (composite mixture (a predetermined amount of the liquid mixture of components necessary to form the product 22. With further movement of the form 3, it enters the first section 6 of the heating chamber with microwave drivers operating throughout the entire length of their placement from the input to the output in the frequency range 915 MHz. Component mix In form 3, it is subjected to high-frequency heat exposure evenly throughout its thickness at 100-150 ° C. As a result of heat exposure, the component mixture in forms 3 loses moisture and foams, rising above the upper edges of form 3.

After this, the mold 3 with the foamed composite mixture successively interacts with the first group of upper pressing elements 6, the forming rolls 17 of which, rotating under the influence of friction forces between them and the composite mixture running on them, compact the foamed and partially dried composite mixture into Forms 3 ". The synchronous rotation of the forming rolls 17 makes it possible to eliminate the possibility of clogging the gaps between the forming rolls 17 which are adjacent to the composition mixture and that they are jammed.

When the forms 3 with the composite mixture come out from under the first group of pressing-in elements 6, they enter the subsequent sections 16 of the heating chamber and the underlay elements 6, where the composite mixture

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subjected to further heat exposure by microwave radiators and subsequent compaction with forming rollers 17.

Further, the exit from the forming zone, the form 3 by the rollers 12 rolls onto the platform 15 of the lifting mechanism (not indicated), and the hydraulic cylinder 13, acting on the pusher 10, lifts the bottom 8 with the product 22 placed on it, opening free access to the finished product 22, which is removed from the bottom 8 of the form 3, after which the movable bottom 8 with the pusher 10 returns to its original position.

Then the cycle repeats.

The application of the proposed device allows gradual sequential formation (alignment of the front surface) of the product, its compaction and cracking of the crust formed after the heat-treated product leaves each section of the heating chamber.

This increases the productivity and quality of the product.

Claims (1)

Invention Formula A device for the manufacture of products from inorganic foam., Containing a composite composition feeder, forming a unit made in the form of a lower feed conveyor and top pressing elements arranged one above another, a heating chamber made in the form of sections installed above the bottom conveyor along its length , about the fact that, in order to increase the productivity and quality of products, the upper subpressing elements are made in the form of a number of unequal forming formers, installed between each adjacent section and at the exit from the formation zone. 21 20. h | 12 Aa ft 4 Rig. fej