DE10152385A1 - Large pack of insulating material has individual and multiple rolls compressed into module to specified dimensions - Google Patents

Abstract

The pack consists of several webs of foil-packed insulating material. Two layers each consisting of 12 insulation rolls packed in a foil cover. The individual rolls and the multiple ones are compressed into a module of joint rolls in a manner that products the fibers, so that for a height of pack of between 2.30 and 2.50 m, and thickness of web of 100 to 240 mm, the ration of insulation surface to standing surface is between 50:1 and 115:1.

Description

The invention relates to a large container according to the preamble of claim 1 and a method for producing such a large container.

Mineral wool insulation sheets are used in a variety of ways for thermal insulation purposes used. A main area of application is the insulation of roofs, especially that Insulation of steep roofs. For this purpose, the insulation sheeting between the rafters attached, both for the thermal insulation of new buildings as well as for the Thermal insulation of old buildings in the course of renovation work mostly so-called Clamping felts can be used. Clamping felts are insulation strips that run across Markings are provided in the longitudinal direction of the insulating material web, so that corresponding the distance between the rafters between which the insulation material is to be inserted Corresponding section of an insulation sheet using the transverse one Markings are cut to length as cutting guidelines and then with a clamp between the rafters is introduced.

It is obvious that when insulating roofs due to the large areas too relatively much insulation is required. The insulation sheets for the clamping felt mostly in a width range from 1000 to 1250 mm, preferably 1200 mm, held ready and can have thicknesses in the range of 60 to 240 mm and more. This Insulation sheets are wound into insulation rolls for transport and storage it is obvious that such insulation rolls with the aforementioned dimensions require a considerable amount of space. For transportation and storage have been here more and more so-called large containers, which consist of a number of in one Foil wrapping packaged insulation rolls are formed. Such large containers are predominantly made up of 18 insulation rolls, which are arranged upright and in two layers are packed out of nine insulation rolls each to form a large container. For every position of the Large containers are made up of three rows of modules arranged side by side three rolls of insulation are used, each of them in a foil wrapping Compression packed insulation rolls also within the module of a compression are subjected. The large container consists of two layers one above the other Insulation rolls are also packaged in a foil wrapper, with the pallet, on which the lower layer made of insulating material rolls of the large container is included in the Foil packaging is included.

The object of the invention is to transport and store such large containers to reduce required space requirements, considering the amounts required Insulation material leads to very considerable cost advantages. This is supposed to do this task can be accomplished by simple measures without the suitability of the Insulation sheeting for thermal insulation is lost or impaired.

This object is achieved by the characterizing part of claim 1 Features included solved, expedient developments of the invention by the features contained in the subclaims are marked.

According to the invention, a large container, which consists of several each to a roll of wrapped, foil-packed insulation material, which is in two layers one above the other and in each layer in several parallel rows of several each roles arranged in a module, both the role and that The module is compressed in such a way that it is gentle on the fibers so that the height of the large container between 2.30 m and 2.50 m, in particular 2.40 m, and a thickness of the insulation sheet in the area from 60 to 240 mm the ratio of the insulation area to the footprint of the large container is equal to 50: 1 to 115: 1. That is, both the role and the roles within one Modules are subjected to a correspondingly strong compression, but this is the way is carried out gently that the fiber structure is not despite the high compression is impaired or destroyed. This is essential because it is only then that the Insulation sheet after removal of the film packaging for use on your Nominal thickness, i.e. initial thickness, springs back and thus the corresponding thermal insulation allows. Nevertheless, this treatment of the role as well as the module leads within of the large container to a considerable space saving of about 23% compared to conventional large containers made of 18 rolls, because the space requirements of the large container are related to a conventional large container with 18 rolls would only need 77%. moreover The invention enables optimal use of the usual pallets, with the dimensions 1200 × 1200 mm, as a large container made up of two layers, each with 12 Insulation rolls or three modules a four insulation rolls can be accommodated.

The gentle compression is composed of two compression processes. The first compression process takes place before the insulation sheet is actually wound. For this purpose, the insulation web is expediently guided through a tapering gap between a pre-compression belt and a lower belt, the actual conveyor belt, where gentler compression, in which no harmful shear forces occur, takes place in particular in the range from 1: 3 to 1: 6. A practicable preferred value of the pre-compression is in the range from 1: 3.5 to 1: 5.5. This pre-compression is very important because, unlike compression during the winding process, due to the implementation of the insulation material, a gradually tapering gap between the pre-compression belt and the lower conveyor belt results in a very gentle compression or compression, the high degrees of compression without damaging the fiber structure admits, so that a sufficient residue of the fibers is guaranteed. The pre-compression band expediently has an inclination between 5 ° and 10 ° and in particular 8 °. The shear forces that occur here, which cannot be completely suppressed, are negligible compared to the shear forces that occur when the insulation material is compressed during the conventional winding process. This is followed by the second compression process, specifically within a module formed from a plurality of insulation rolls, in particular four insulation rolls, the rolls being arranged in a row one behind the other and compressed in the longitudinal direction of the module. In a practical embodiment, a compression takes place in the pre-compression stage upstream of the winding device, which, starting from an insulating material web with a bulk density of 14 kg / m ^3, leads to a density of 76 kg / m ³ , with compression in the second compression process within the module Density of 100 kg / m ³ occurs, which corresponds to a compression of approximately 1: 7.9.

It is expedient to use fibers of increased quality to form the large package used by using the fibers using known centrifugal baskets or Centrifuges with a lower hole throughput per hole than conventional practices or opening the centrifuge or the centrifugal basket. Preferred perforation capacities are 0.7 to 1.1 kg glass melt / hole and day, preferably 0.9 kg / hole and day. Fibers with a medium one are preferred Fiber diameter of 3 to 4 microns, preferably 3.5 microns, which is characterized by high quality or high restoring forces and increased compression without the risk allow damage to the fiber structure.

The compression within the module expediently consists of several Insulation rolls 28 to 32%, preferably about 30%.

Regarding the ratio of Depending on the thickness of the insulation sheet, the insulation area to the standing area of the large container results in following relationships.

With a thickness of the insulation sheet of 100 mm and a thermal conductivity class 035 (The thermal conductivity class is determined by DIN 18 165, Part 1) is a Ratio of insulation area to footprint of about 112: 1 preferred.

With a thickness of the insulation sheet of 120 mm and a thermal conductivity class 035 the ratio of insulation area to footprint is preferably around 96: 1.

With a thickness of the insulation sheet of 140 mm and a thermal conductivity class 035 or 040, the preferred ratio of insulation area to footprint is approximately 80: 1 or 100: 1.

With a thickness of the insulation sheet of 160 mm and a thermal conductivity class 035 or 040 the preferred ratio of insulation area to footprint is about 70: 1 or 89: 1.

With a thickness of the insulation sheet of 180 mm and a thermal conductivity class 035 or 040, the ratio of insulation area to footprint is preferably about 64: 1 or 80: 1.

With a thickness of the insulation sheet of 200 mm and a thermal conductivity class 035 or 040, the ratio of the insulation area to the footprint is approximately 56: 1 or 70: 1.

With a thickness of the insulation sheet of 220 mm and a thermal conductivity class 035 or 040, the ratio of insulation area to footprint is preferably about 66: 1.

Overall, the measures according to the invention result in considerable Cost advantages through a correspondingly large reduction in the space requirement and that through simple Measures using the conventional methods for the production of large containers can be executed. With the same size of the large container according to the invention compared to the large container of conventional design consisting of 18 rolls same transport volume considerably larger amounts of thermal insulation material, which can be processed. The large container made of 24 rolls is particularly suitable a thickness of the insulation rolls of 400 mm for use on standard pallets with a size of 1200 × 1200 mm, because there are three modules of four on the pallet Insulation rolls can be housed flush. In the case of two layers, this results in a Large containers with 24 rolls of insulation.

A preferred embodiment of the invention is described below with reference to FIG Drawing described. In it show a purely schematic representation

Fig. 1 shows a preferred embodiment of a large package of insulation rolls 24,

Fig. 2 is a schematic side view of a device with a Vorkomprimierungsband and winding apparatus for winding a web of insulating material into a roll for illustrating a first process step for forming the large package,

Fig. 3 is a schematic side view of part of an apparatus for forming a module of a plurality of insulation rolls to illustrate a second process step for manufacturing the large package,

Fig. 4 is an end view of a module made of four rolls of insulation before and after compression or film wrapping and

Fig. 5 is a perspective view of a module from four insulation rolls.

Fig. 1 shows a large container for transport and storage of several rolls of insulation, in which a total of 24 rolls of insulation are packed into a large container. The large container, generally designated 1 , is formed from two layers 2 and 3 arranged one above the other, 12 layers of insulation material being packed in each layer 2 , 3 . The insulation rolls designated 4 are arranged upright in each layer and each layer 2 , 3 is formed from three modules 5 a to 5 c arranged next to one another, with four insulation rolls being arranged in a straight line in each module.

As clearly shown in FIG. 5, the insulating material rolls, which are combined to form a module and are arranged next to one another in a straight line, are packed into a module 5 by a film covering 6 . In the exemplary embodiment according to FIG. 5, the film covering 6 covers the exposed outer surface of the insulation rolls 4 , but leaves the end faces of the insulation rolls free. If necessary, a closed film wrapping can also be used. The foil envelope 6 of FIG. 5 is here shown only schematically, because in practice, it is desired that the foil envelope extends when using a shrink film also over part of the end face, so that the foil wrapping 6 a little longer than that in Fig. 5 with 1 designated length of the insulation rolls 4 and thus protrudes on both sides over the insulation rolls arranged one behind the other, so that during the shrinking process the projecting sections of the film extend slightly over the end faces of the insulation rolls.

The large container formed from two layers 2 , 3 arranged one above the other, each consisting of four large containers in three rows, each with four insulation rolls, is surrounded by a film covering 7 , which is shown schematically in FIG. which are formed here by the height of the large container, each consisting of two rolls of insulating material arranged one above the other. Here, too, a closed envelope is chosen in practice, for example by B. from above, a plastic cover sheet is placed on the large container, the downward falling edge of which is then wrapped by means of the stretch film, as are the other outer surfaces of the large container.

When the large container 1 is arranged on a pallet, in particular a German standard pallet with the dimensions 1200 mm × 1200 mm, the film cover 7 can also be pulled over the pallet, not shown in FIG. 1, so that the pallet is included in the packaging of the large container ,

The individual steps for forming the large container shown in FIG. 1 from 24 rolls of insulation material are described below, which can be accommodated flush on a standard pallet with the dimensions 1200 × 1200 mm.

The height of the large container made up of two layers one above the other Insulation rolls are preferably between 2.30 m and 2.50 m, without a pallet dimensioned what a width of the insulation sheet or a height of each insulation roll from 1.15 m to 1.25 m. As is well known, such insulation webs in one preferred width of 1.20 m manufactured, which are predetermined due to production.

Referring to FIG. 2, the zoom transported on a sub-band 8 insulating sheet 9 is subjected, before the winding device of a first compression, and indeed the fact that the insulating sheet 9 between the narrowing gap between a top Vorkomprimierband 10 and the lower belt 8 is guided. As a result, the insulation web 9 brought up to a nominal thickness of d is compressed to a reduced thickness d 'and then wound in this state, as can be seen in FIG. 2, with 11 the so-called squeezing roller and 12 the winding arm 12 formed by a conveyor belt is designated. As can be seen, the insulation web is pre-compressed considerably before the actual winding process, which advantageously takes place in a sliding manner and is therefore gentle on the fibers. The winding arm 12 , which rests from above on the insulation roll formed in the winding device, ensures that the winding process takes place under the compression generated by the pre-compression band, that is to say the compression in the winding is maintained. The insulating material roll formed in the winding device is then packed in a shrink film in the usual way, so that the compression is maintained. The degree of compression during the pre-compression of the insulation web via the pre-compression belt 10 is in the range from 1: 3.5 to 1: 5.5, in particular in the range from 4.5 to 5.4, in a practical embodiment starting from a bulk density of the insulation web Introducing 14 kg / m ³ into the gap between the pre-compression belt 10 and the lower belt 8, the insulation belt is compressed to a bulk density of 76 kg / m ³ . This results in a compression of 1: 5.4, whereby in practice a maximum degree of compression of up to about 6 can be achieved, that is to say the thickness of the insulation web can be pre-compressed to a sixth. The following table shows the compression values of practical embodiments of insulation sheets of the thermal conductivity group WLG 040 and WLG 035. Table

With an insulation roller 4 produced in this way and wrapped with a film, a module of four insulation rollers is then formed with further insulation rollers, which is explained with reference to FIG. 3.

Fig. 3 shows a conventional stacking device for forming of a module, wherein the vertically arranged stacking device 13 are fed encased in a foil insulation rolls 4 from above. For this purpose, the stacking device 13 has two walls 14 arranged at a distance from one another, which delimit a gap between them for receiving a row of four insulating material rolls arranged one behind the other. The four insulation rolls 4 received in the stacking device 13 between the opposing walls 14 are held by a holding device 15 . Under the holding device 15 there is a sleeve device 16 , which in turn is formed, similar to the stacking device 13, from walls 17 arranged opposite one another. Above the casing device 16 , two foils 18 are fed from two opposite sides and are unwound from the reels 19 . These foils 18 are welded to one another by a welding device 20, which is again only shown schematically, before entering the gap between the walls 17 to form a foil. If the holding device 15 is opened, the four insulating material rolls 4 arranged one above the other in the stacking device 13 take the welded film from the two films 18 between the walls 17 and rest on the plunger 21 of a hydraulic piston cylinder 22 . After the four insulating material rolls are inserted between the walls 17 , the row of four insulating material rolls 4 arranged one above the other is pressed by raising the plunger 21 , a stop being formed above the two walls 17 by the rolls of the welding device 20 , so that compression of the four insulation rolls in the longitudinal direction of the module. After the compression has taken place, the two foils 18 are welded again above the walls 17 to form the module shown in FIG. 5. Within this module, the four rolls of insulation are arranged with compression in the longitudinal direction of the module, the foils 18 being reinforced, ie with a thickness between 40 and 100 μm, preferably 70 μm

This compression results in particular from FIG. 4, the upper illustration with a showing the length of the row of four insulating material rolls of a module arranged one behind the other, namely before compression within the casing device 16 . The illustration in FIG. 4 below shows the four insulation rolls after compression, in which the length of the module or the length of the insulation rolls arranged one behind the other is now a '. This also results in a certain ovalization of the insulating material rolls during longitudinal compression during compression, as is evident from the lower illustration in FIG. 4. Overall, you get a module compression between 1: 7.5 and 1: 8.5, preferably 1: 7.9.

In a preferred embodiment, the insulation rolls are wound into rolls with a diameter of 400 mm, which means that the length a of the row of four insulation rolls 4 arranged one behind the other is 1600 mm before the module is formed. In the sleeve device 16 , the module is then compressed in the longitudinal direction of the module to a length a 'of 1200 mm, so that three modules with four rolls of insulation fit flush on a conventional pallet with the dimensions 1200 × 1200 mm.

To in terms of the bulk density of the products with such large degrees of compression Avoid destroying the fiber structure and ensure that after removing the Foil packaging the insulation roll springs back up to its nominal thickness, are in a preferred embodiment of the invention, the fibers are produced with special quality. For this purpose, the conventional rotating centrifugal basket is used for the production of the fibers a hole performance of 07 to 1.1 kg / hole and day operated, preferably 0.9 kg / hole and day with an opening or hole diameter of <1 mm, d. H. between 0.5 mm and 1 mm, preferably 0.8 mm. The centrifuge basket has one Diameters from 400 to 600 mm. High quality fibers are produced, which despite the increased degrees of compression in the winding device and within the module training a springing up of the insulation material sheets after developing from the roll and after Allow removal of the foil packaging to the nominal thickness of the insulation sheet. The The centrifuge basket also has a hole count of 27,000. These data of the centrifugal basket are however changeable and serve only as an example. The perforation performance is essential compared to conventional manufacturing processes. Here arise Glass wool fibers with an average fiber diameter of 3 to 4, in particular 3.5 µm.

Overall, the procedure described allows a large container of 24 Place insulation rolls on a standard pallet of 1200 × 1200 mm compared to a conventional large container with 18 rolls of insulation and three each Insulation rolls packed into one module, i.e. three modules with three insulation rolls per layer Space saving of approximately 77% is advantageous. This is a significant advantage of the due to the reduced space required for transport and storage accordingly cost effect.

Claims (15)

1.Large containers made of several mineral wool, in particular glass wool, foil-wrapped insulation sheets, each wrapped into a roll, which are arranged on a base in preferably parallel rows of several rolls and in at least two layers one above the other, each row with the several rolls by one The film cover is packaged in a compressed state to form a module and the layers arranged one above the other are optionally packed with a pallet located under the first layer as a stand by a further film cover to form a large container, characterized in that both the single roll and the multiple rolls are combined in one The module is compressed in such a way that it is gentle on the fibers, so that with a height of the large container between 2.30 m and 2.50 m, in particular 2.40 m and a thickness of the insulation sheet of 60 mm to 240 mm, the ratio of the insulation area m ² / standing area m ^{2 of} the large container equal to about 50: 1 to about 115 : 1 is. 2. Large container according to claim 1, characterized in that the rollers under increased compression held by the film envelope applied around the module are. 3. Large container according to claim 1 or 2, characterized in that the Compression is in the range of 28-32%, preferably about 30%. 4. Large container according to one of the preceding claims, characterized in that fibers of higher quality are used for the insulation web, in particular Fibers made using a rotating centrifugal basket with a perforation capacity of 0.7-1.1 kg of glass melt / hole and day, in particular 0.9 kg / hole and day are. 5. Large container according to claim 4, characterized in that the fibers with an average fiber diameter of 3-4 microns, especially 3.5 microns used become. 6. Large container according to one of the preceding claims, characterized in that the large container has 24 rolls, each with 12 rolls in one layer with two layers arranged one above the other. 7. Large container according to one of the preceding claims, characterized in that that four roles are packed per module. 8. Large container according to one of the preceding claims, characterized in that three modules are placed side by side on a standard pallet are. 9. Large container according to one of the preceding claims, characterized in that here three modules from four rolls, each with a diameter of 400 mm arranged on a standard pallet with 1200 × 1200 mm length to width are. 10. Process for producing a large container, in particular a large container according to one of the preceding claims, in which several roles from under Compression wound insulation material sheets wrapped in a film and into one Module summarized and bound by a film cover, several of these Modules next to each other to form a layer on a stand summarized and at least one further layer of several correspondingly side by side arranged modules is placed and these layers, if necessary, with a Pallet as standing area through another foil cover to the large container are summarized, characterized in that the formation of the module juxtaposed roles of the module of increased compression in Longitudinal direction (about 1/3 in the longitudinal direction) and while maintaining the Compression of the row of rolls is covered with the film cover. 11. The method according to claim 10, characterized in that the insulating material webs be subjected to pre-compression before the actual winding process. 12. The method according to claim 11, characterized in that the insulating material webs for pre-compression through a gap area with a narrowing gap width be performed. 13. The method according to claim 12, characterized in that for the Pre-compaction is placed at an angle to the conveyor belt of the insulation web Pre-compression band is used, the inclination of which is in a range from 5 ° to 10 °, is in particular at 8 °. 14. The method according to any one of claims 11 to 13, characterized in that the Degree of pre-compression with a WLG 0353, 5 to 5.0, especially with thicknesses < 200 mm 4.5 and with thicknesses> 200 mm 3.6 or with WLG 040 5 to 6, in particular 5.4 for thicknesses <220 mm and 4.1 for thicknesses around 240 mm. 15. Large container according to one of claims 1 to 10, characterized in that the compression within the module is in the range from 7.5 to 8.5, is preferably 7.9.