SU1535759A1 - Method of packing high-melting bitumens in thermoplastic film - Google Patents

Abstract

The invention relates to packaging technology and is aimed at improving the quality of packaging and conditions for packaging. A container of thermoplastic film is filled with compressed air, divided into sections and placed in a rigid form, clamping along transverse welded seams, leaving the upper part of the container above the edge of the form. Before filling with bitumen, a rigid form with a container is installed vertically and a filling nozzle is inserted into each section of the container. During the pouring of bitumen into the hard form, coolant is supplied. Brew holes obtained from the introduction of the filling nozzles, and cool the container with bitumen in water, simultaneously pack and tie it up, placing the tape in the recesses of the welds. 1 hp f-ly, 3 ill.

Description

The imprint relates to packaging technology, in particular, the packaging of hot-melt materials, and can be used in the oil refining industry when packing refractory bitumen (for example, construction, roofing, special, bitumen cable compositions) in a thermoplastic film, as well as in other areas packaging materials such as paraffin wax, rubber bitumen mastics.

The purpose of the invention is to read packaging quality and improve packaging conditions.

Fig. 1 is a flow chart for the manufacture of a container consisting of four sections; FIG. 2 shows a rigid form in a vertical position with a container protruding above it; FIG. 3 prepared for storage or transportation of a package from packages of titschma, tied with a tape. in welded welds

The method is carried out as follows.

A sleeve of a thermoplastic film (the container is filled with compressed air and then grandfathers on the section, applying transverse seams with the help of portable welding elements. Moreover, the container is filled with compressed air by piercing one and the other of the walls of the film). thermo-welded seams. Then Apol-compressed air container is placed in a rigid form so that its edge protrudes over the form and squeeze along the transverse seams

Since the container is made sectional, then the rigid form for its placement is also made sectional. The rigid form with the container is installed vertically, filled with bitumen by inserting the filling nozzles and sealed the holes obtained with the introduction of the latter. Then water is cooled to that part of the container that is placed in the hard form of irrigation water supply

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The cooling of the bitumen container is carried out in water, removing the container from a rigid form, and at the same time the container with bitumen is packaged and tied by placing the tape in the grooves of the welds

Example At the experimental site, the construction of bitumen of the BN 90/10 grade using the proposed method was made of plastic film 0.12 thick and 600 mm wide inflated with compressed air under a pressure of 0.3 MPa and divided into 4 identical sections using portable welding elements transverse heat-welded seams (Fig 1) In the manufacture of containers, the width of the section in the block was maintained equal to the width of the section of the form, and the width of the double transverse shvashyryne form

The overall dimensions of the sections were 100x250x hbOO mm. and the dimensions of the obtained block were 100x600x1000 mm. The obtained block was cut off and placed in half of the four sections that were opened in such a way (that the transverse seams of the container were located on the projections between the sections

5, then the formch was closed, clamping the seams of the Gara between the protrusions of the halves of the form in a vertical position (Fig 2), the hook as the taper of the mold section was 450 mm, the upper part of the container protruded above the edge of the form. The seams of the container were clamped between the projections of the form fixed in the form in a fixed state, and its upper stand did not fall off and occupied a strictly vertical position. The sections of the mold dispersed under the filling pins of the dispenser. Forms with tare raised up. When the hot ends touched, over the form of tea containers in the sections of the container, the holes were drilled and the filling pprbvki entered the protruding part of the container exactly along the section axis. Then the water was fed to irrigate the surface of the container, which was in the form, opened on the filling 4 pneumatic valves having a common drive and at the same time they poured into Kri / k 1, the 10th section of the block from the user of 10 kg each. The temperature was ISO C and the temperature cooled all wells. The equality of the doses of bitumen poured in the container sections was ensured by equal volumes of the dispenser sections. The required quantity was produced using a piezometric retro torus

The container, 41 of the filling bottoms were located along the axis of the sections of the container, and drops of the bitumen being poured did not fall on the inner surface of the upper and quickening part of the i

containers and did not prevent further heat sealing strips

The air displaced by the bitumen from the container during the pouring out through the open

on both sides of the tube, welded to the filling nozzles. After casting the bitumen, the mold was lowered down, but due to the fact that the seams of the container were clamped between the protrusions of the mold, the top jutting

over it, a part of the container did not fall off and continued to remain in a vertical position after the release of air

Following this, using portable electric heating elements, the holes were welded at once in all seconds.

The block was then opened and the hermetically sealed block with bitumen slipped from the mold into the water bath, spreading flat in it. Then the cycle was repeated in the same sequence. The blocks of bitumen from the mold fell into the baths against each other, displaced water freely merged into the sewers. Vertical rods were placed in the bath, making it impossible for the blocks to move horizontally.

In the 5th bath, it played the role of a damper, keeping the bitumen blocks afloat, and the upper one was at about the same height

After repeating 10 pouring cycles, a package of 10 blocks was formed in the bath.

0 with bitchm After this, the pouring was stopped, the bag was held in the bath with water for another 20 minutes, and then the waters were drained. The bag was wrapped around with plastic banding tape, which was pre-filled with hooks before the casting.

5 were missed in 3 rows by blots between the sections of the block and tightened manually (Fig. 3). The results of the method showed that when the bitumen is poured, no melting of the film occurs, the resulting briquettes

0 hermetically and easily packaged

The packaging of containers consisting of several sections, separated by transverse seams, and the use of a multiply-shaped mold for filling bitumen, allows packings of bitumen connected to each other in a block. Packed in such a way the Beatles for years can be packaged due to the fact that the shape of each block is close to The rectangular and intersectional sections have recesses formed by seams. The presence of transverse heat-welded seams between the sections of the container, the use of a revealing form and fixing the container in the form along transverse seams make it possible still fix tar in

5 form when pouring bitumen and prevent the top part of the container filled and protruding above the form from falling off, after the end of pouring, pouring

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nozzles from the hole and inside the hole. This allows a mechanized method to carry out the operation of film heating - to seal the holes in the container, obtained by inserting the filling nozzles and, thus, to ensure tightness, and to improve the quality of packaging. The opening of the holes in the container becomes possible. that which is filled with bitumen and soaked with water is only that part of the container that is in the form. The presence of the free part of the container in bitumen and the vertical position of the latter in the form allows the edges of the film to be joined around from ERSTU for its heat-sealing

Combining the operations of bitumen precooling and packaging of packages improves the quality of packaging and improves the conditions of packing as when stacking other blocks are not yet at their peak, under the weight of the overlying blocks, the bottom surfaces are aligned, horizontal planes appear. At the same time, the shape of the blocks approaches the rectangular one, which ensures the most efficient use of the volumes of warehouse premises and vehicles.

Prepend 1n blowing the film handle (tare) with air and the subsequent separation of it with transverse seams, allowing the IHCT to mechanize the ipu radiation into the mold and place it in a strictly fixed position, which contributes to an increase in packaging quality

Due to the fact that when placing a container in a forum, they are scattered over a form at a height of at least half the width of the form, when printing holes, the floor of the free part of the container that is free from the introduction of the filling nozzles is enough to form a seam, ensuring iiomero tightness and barely so much. high quality of packing

The use of the opening form allows to combine the operations of introducing the container (in one half of the form) and the number of filled and sealed containers (from another field) of the form) Jj (the time of the filling cycle is shortened (logging time) , production is increased and unit capital costs are reduced.

In a covered rice form, when the vertical casing of the container is excluded, t can bind the container with bitumen.

Transferring the operation to the cycle of injecting taras psnvot him use is jiy about eratsnyu and (peak ia inoine

NIA Tara bitumen. WHICH ARE PRODUCED IN

potting form At the expense of this skill, the cycle time of tare flattening increases the exhaust. packaged products and

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reduced cumulative packing costs. In addition, air-inflated tare can be introduced into the mold in a mechanized way using a simple mechanism, such as a pusher, and placing a non-diluted bag into a form requires either a more complex manipulator-type mechanism or manual. labor that is associated with higher packaging costs

The manufacture of sectional tare from a foil film can be made either directly in the process of its production,

or from the finished film supplied in p. When smoking a cannon, it comes out of a terra (screw press), inflated with air. In this case, to make a block container, it will be necessary to arrange the movement of the handles with air, applying cross seams, for example heat sealing and cutting the block out of several sections These operations may be performed by any known methods. When manufacturing a block film from a roll film, it is also necessary to perform these operations, and besides ioio you will need to inflate the sleeve with AIR Filling Air sleeves can be arranged by rolling one wall with it with a sharp tip of an air duct that makes, for example, a moving posture, movement, l MOVING HAND When withdrawing the nozzle from the sleeve, it is necessary to put stitches on the pier from the two sides of the pier, for example, heat-sealed. It provides an opportunity to prepare tennuk tara and yum to protect it from the air outlet, it, and not even to cool the war

Slotting tare in the form of a current with depressions between the tubes along transverse seams contributes to the fact that in the bath with water, when the Trub pipes are placed on each other, channels are formed between them through which the cooling water circulates. ter my ys ICH.TUYu and the theories of tapas oi

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The vanin of the container wall with water occurs a statically intensive removal of the tent and the temperature of the container becomes significantly lower than the melting temperature of the thermopsynthes and the tank.

The vertical arrangement of the mold with the container during the sizing of bitumen and the vent increases the cooling rate, since the vertical position of the coef phytin HI Ü1 is heatogent h 1 times higher than l horizontal

All of the above makes it possible, instead of a set of forms and a conveyor as provided in the prototype, to use

one drop-down due to which the cost of equipment is reduced

In addition, the proposed method will provide a significant additional effect on small packaging of bitumen due to elimination of group packaging costs, such as the formation of an enlarged cargo unit. If an enlarged cargo unit is formed through the use of shipping containers (boxes, conveyors, pallets), additional costs are necessary on transport packaging, packing of small-sized bitumen into it and on return of empty transport packaging. If the enlarged cargo unit is formed with the help of a thermus full film, then additional costs will be required for the package forming equipment, shrink film and energy for the heat shrinking operation. Small bitumen is obtained directly in the packaged form, those in the form of an enlarged load unit, which makes it possible to refuse the use of a transport specimen or a heat shrink film and exclude the costs of subsequent group packaging The packaged product requires significantly less labor and time for loading and unloading operations

This way the co-economic efficiency of the proposed method is achieved by improving the quality of packaging and reducing the load. This method ensures complete tightness of the packaging of bitumen, in realty which eliminates its loss, contamination and watering during transportation and storage. Reducing costs is achieved by reducing the cost of equipment and power consumption

In addition, the use of the proposed method will allow organizing the production of small-sized, high-quality krapva, and the crappings need to be rooted.

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For example, in the cable industry. When bitumen is finely packed, an additional economic effect is obtained by eliminating the cost of subsequent group packaging, since when packing blocks with bitumen, an enlarged unit of cargo is obtained that does not require transport packaging. Thus, the proposed method can be used to produce bitumen that has been packaged in small quantities. as a consumer goods, while the economic effect according to the calculations will be about 7 rubles per 1 ton of bitumen when replacing the paper packaging of the ple full-time

Claims (1)

Invention Formula  A method of packing refractory bitumens in a thermoplastic film, which involves filling the container with compressed air, placing it in a rigid form, filling the container with bitumen by introducing filling pipes into it, cooling the container with bitumen in a hard form with water and cooling it, characterized in that in order to improve the quality of packaging and improve M.LOBII, the packaging of compressed air worn containers is divided into sections by applying transverse seams, the packaging is rigid in the form of so. that the edge protrudes above the form, and is clamped along transverse seams, the rigid form with the container is placed vertically, filled with a bi-hum and cooled with water a portion of the container, which is located in a rigid form, and after filling the container with bitumen, it is brewed into it the introduction of casting nozzles, and the after-cooling of the container with bitumen is carried out in water, and at the same time it is packaged and tied up by placing the tape in the grooves of the welds 2 The method according to claim 1, wherein the filling of the container with compressed air is carried out by piercing one of its cans. Fig1 Fig.d