WO1997027008A1

WO1997027008A1 - Compacted bale of refuse and process for production

Info

Publication number: WO1997027008A1
Application number: PCT/EP1996/004338
Authority: WO
Inventors: Werner Doppstadt
Original assignee: Werner Doppstadt
Priority date: 1996-01-24
Filing date: 1996-10-05
Publication date: 1997-07-31
Also published as: NO983412D0; EP0876224A1; NO983412L

Abstract

Generally prism-shaped compacted bales (4) are formed out of pre-sorted and ground refuse which is essentially free from kitchen and food waste as well as from glass and metal. A baling compactor (3) forces the bales through an immersion bath (7) which contains a sealing agent which is liquefied through either heat or a solvent and which is combustible without leaving residue or harmful products of combustion. The compacted bales (4) can also be enclosed within an elastic shrink-wrap tubular film. The compacted bales produced are ruggedly sealed on all sides against damage and can be transported over long distances and stored for long periods of time; they can fuel heating power stations.

Description

Bales made from rubbish and process for its manufacture.

Technical field

The invention relates to a pressed bale made of comminuted waste of generally prismatic shape with an all-round seal, which consists of a sealing material which is combustible essentially without residues and without the formation of harmful combustion fuels.

The invention also relates to a process for the production of such a press bale, in which waste is crushed, compressed into a generally prismatic press bale and provided on all sides with a seal which is combustible essentially without residues and without the formation of harmful combustion fuels.

The invention further relates to a device for sealing a bale of crushed waste with a film.

Underlying state of the art

According to DE-A-3 941 727, a round baler known from agriculture is used to compress crushed waste of all kinds, in particular domestic waste, into round bales and to wrap them with a net. The round bale wrapped in this way is then completely enclosed in a cover sheet by adhesive bonding.

DE-A4 106 687 specifies a landfill process for waste, in particular household waste, commercial waste, hazardous substances or the like, in which the waste after a sorting of valuable material in a round baler, as it is produced agriculture is known, compressed under compression up to a compression factor of 0.7 and wrapped around the circumference with a plastic mesh and kept together. This is intended to prevent rotting for a long time. The round bale wrapped in this way is then encased in a water- and airtight stretch adhesive film. In this way it is achieved that the waste is enclosed completely and in a conservative manner, which is intended to prevent landfilling without the formation of environmentally harmful leachate and gases.

From DE-A-4 125 053 it is known to compress crushed household waste under high pressure with a volume reduction of 20: 1 and with the squeezing out of liquid substances to form press blocks which can be further processed into humus, compost or fertilizer or can be fed to an incineration plant .

It is also known to compress waste paper or voluminous waste by means of hydraulic presses into compact prismatic press bales (company brochure of Bollegraaf Recycling Machinery, NL-9900 AH Appingedam). In this way, the waste can be highly compressed. This facilitates the handling, transport and storage of the waste.

DE-A-4 005 331 discloses a waste treatment system which consists of a comminution device for comminuting bulky parts, a downstream sieving device for eliminating disruptive material and a system for manual sorting of the material leaving the sieving device.

DE-C-3 644 146 describes a screening device for screening compost from rotted organic material by means of a screening drum. From DE-A-2 117 907 a method for pressing municipal waste into bales is known, in which crushed waste from general consumer waste (cellulose material, glass, rags, rubber, plastic, kitchen waste, food waste, metal, ash) with one Binding agents such as bitumen are added and pressed into prismatic bales. The compressed bale can be held together with strips or tapes and can be coated with bitumen by immersion, infiltration or spraying. The pressed bales thus produced have sufficient strength, which is determined by a peeling test; they are deposited in landfills.

A similar process is described in DE-B-1 274 051. The collected waste is then crushed, if necessary, mixed with a binder such as asphalt and pressed into cubic bales in a press. The press bale is then provided with an impermeable coating of asphalt or plastic, possibly also or only wrapped in wire mesh or plastic strips. The bales should have a higher density than water so that they can be tipped into the sea and sunk.

DE-A-2 061 775 discloses a method and a device for treating kitchen waste by pressing. For this purpose, the kitchen waste is shredded, mixed and pressed together in several stages. The press block thus obtained is then folded over on four sides with a grid or grate using a drawing iron. The press blocks thus transferred are immersed with the aid of gripper tongs in an asphalt bath and then in a water bath. They are used for construction work, for example as foundations, for filling or for underwater structures. DE-A-1 577 191 and 1 577 270 relate to a method and a device for processing waste, in particular kitchen waste and waste from food processing companies, grocery stores and the like. For this purpose, the waste is highly compressed into press blocks with dewatering. The press blocks are then packed, for example in wire-mesh-reinforced plastic or metal sheets, wire meshes, canvas sheets or steel strips. Press blocks packed in this way are easily transportable and are buried or sunk, for example, for fastening sea and river banks, but can also be fed to combustion.

Bales made from waste with sufficiently high calorific values and low combustion residues require a pre-sorting of the waste, in which all non-combustible constituents such as glass or metal are removed from the collected waste as far as possible. This sorting is currently being carried out on a large scale. In contrast, attempts were made in the past, cf. for example DE-A-2 117 907, to supply compressed bales from unsorted municipal waste to the incineration, which, however, caused problems in the incineration (glass melt) and relatively high incineration residues due to the relatively high amounts of non-combustible constituents. For this reason, other uses, in particular dumping in landfills, were used, which also proved in the long run to be impractical.

The combustion of pressed bales from garbage in thermal power stations requires not only pressed bales that have sufficiently high calorific values and leave as little residue as possible during combustion, but also pressed bales that can be transported over longer distances and can also be stored for longer periods. Sufficiently high calorific values and economical transport conditions are required high compression, which is not achieved with the round balers known from agriculture.

The transport and storage capacity of the press bales for their utilization in incineration plants is required because the accumulation of the press bales and the need for press bales for the heat generation in heating power plants generally differ in time. In particular, in the warm season, the bales are produced in quantities which are not required for heat generation, while in the cold season, in which the need for fuel is particularly high, they are not obtained in such quantities that continuous operation of the Incinerators is easily possible. If storage is insufficient, fossil fuels must be burned to an undesirable extent in the cold season.

The transport and storage capacity of the press bales requires that the press bales have a sufficiently high resistance to damage during treatment during transport and on the bearings, and that the press bales are either free of fermentable components or are manufactured in such a way that their Composition is not adversely affected by fermentation processes. Such fermentation processes are triggered microbiologically and are both aerobic and anaerobic. They can be prevented at least in part by removing all kitchen or food waste from the garbage. This sorting is currently carried out on a large scale, but was not common in the past. Accordingly, in the case of the further known baling bales which contained kitchen and food waste or even consisted only of such waste, landfill and structural use were used rather than incineration. The resistance of the press bales to damage caused by the treatment during transport and storage first requires that the press bales are held together. For this purpose, it was known to increase the cohesion of the comminuted waste components by adding a binder such as bitumen to the waste. Bitumen was used in quantities of up to 15%, cf. DE-A-2 111 907. In connection with the further coating of asphalt, this not only leads to the use of larger amounts of fossil fuels, which is undesirable per se, but also cannot suppress anaerobic fermentation processes which considerably reduce the calorific value of the pressed bales . If the casing is damaged, air can also penetrate into the bale and cause the undesirable reduction in the calorific value by aerobic fermentation processes. It has therefore also been proposed in the aforementioned publications to add chemicals to the garbage before the formation of the bale to prevent such fermentation processes. As a result, however, the garbage itself becomes chemically contaminated, which is also considered undesirable.

These problems can only be influenced by a pre-sorting, in which kitchen and food waste and the like are removed from the waste before the formation of the pressed bales, as is currently the case. After the further removal of non-combustible constituents such as glass and metal, the waste is then present in a composition which, in the sufficiently compressed state, has a desired high calorific value. However, this waste is also still exposed to aerobic fermentation processes if it is stored under air. It is therefore important to prevent this air ingress, even if the baling bale is slightly damaged during transport and storage. For this purpose, the bale is suitably enclosed in an airtight envelope. In this context, a new problem arises in that the shredded garbage is also highly elastic and therefore quickly reforms when the pressure is released. However, this reduces the density and thus the calorific value of the individual bale to an undesirable extent.

The last-mentioned problem is not solved in the previously known press bales and the processes for their production, since the wrapping of the press bales takes place only after the pressing, that is to say after the pressure has been released.

Disclosure of the invention

The object of the invention is to provide a method for producing bales from garbage and a bale made from garbage, which is suitable for combustion in thermal power stations and whose calorific value is not noticeably reduced even if its outer casing is damaged.

This object is achieved according to the invention with respect to the press bale in that a press bale made of pre-sorted garbage, which is essentially free of kitchen and food waste, as well as glass and metal, is held together in the pressed state and that the seal on the im pressed state is brought together pressed bales.

With regard to the method according to the invention, this object is achieved in that a bale of presorted garbage is held together in the pressed state and the bale held together in the pressed state is sealed. With regard to the device according to the invention, this object is achieved by means of an axially guided, displaceable jacket body, as well as by means of feeding means for inserting a press bale into the jacket body, a tube pulling device for pulling a film tube under slight elastic stretch on the jacket body and adjusting means for retracting the jacket body from the bale and out of the film tube.

The press bale is shaped in conventional baling presses and can be held together with wire before sealing, but preferably with a combustible plastic cord. The bale obtained in this way is no longer subject to elastic recovery.

In one embodiment of the invention, a fossil material such as bitumen or a material that is available from renewable raw materials and is selected from gelatin or gelatinous materials is used to seal the pressed bale, which may be held together in the compressed state.

In another embodiment, the sealing is brought about by elastic recovery of a stretched film tube.

The pressed bale, which is held together and sealed in the pressed state or under the pressing pressure, is sealed airtight and is therefore not subject to fermentation processes which significantly impair its calorific value even when stored for a long time. The seal is so close to the outer surfaces of the press bale under pressure that there are practically no gaps between the outer surfaces of the press bale and the seal. As a result, minor damage to the seal, as they can arise in the handling of the baling balls during transport and storage, do not have a disadvantageous effect. Although the surrounding air comes into contact with the material of the baling in the region of the seal, it can only penetrate into the interior of the baling to a very small and therefore harmless extent due to the high baling pressure under which the baling is. As a result, the fermentation processes which would significantly reduce the calorific value of the pressed bales are prevented even in the case of further, longer storage.

Garbage particles with a grain size of up to about 30 mm are advantageously removed from the comminuted garbage by sieving, since it has been shown that such garbage particles consist predominantly of non-combustible material and therefore only in an undesirable manner the amount of the incineration residue enlarge.

To increase the calorific value, shredded waste wood can expediently be added to the shredded waste.

Brief description of the drawings

Exemplary embodiments of the invention are shown in the illustrations and are explained and described in detail below using the reference symbols. Show it

FIG. 1 shows a schematic representation of a first exemplary embodiment of a method according to the invention for producing the bale according to the invention;

Figure 2 is a schematic representation of an apparatus for exercising a second embodiment the method according to the invention for the production of the bale according to the invention;

Figure 3 is a schematic representation of the device of Figure 2 immediately before sealing the baling;

Figure 4 is a schematic representation of the device of Figure 3 in plan view during the sealing; and

5 shows a schematic representation of a further embodiment of the device according to FIG. 3.

Preferred embodiments of the invention

The system shown schematically in FIG. 1 is used to carry out a first exemplary embodiment of a method for producing garbage pressed bales which are suitable for combustion in thermal power stations. For this purpose, the pre-sorted garbage, which is essentially free of kitchen and food waste as well as glass and metal, is first fed to a garbage crusher 1 of a known type (for example roller crusher DW 3080 from DVG-Doppstadt, Steinbrink 13, 42555 Velbert). The shredded garbage then reaches a baler 3 by means of a conventional conveyor 2, which can be a belt conveyor, for example. The presorted and shredded garbage is compressed under high pressure to form a bale 4 of generally prismatic shape.

Such balers are known per se (for example

Konti C from the company PAAL's Packpressenfabrik GmbH + Co. KG, Raiffeisenstrasse 16-17, 49124 Georgsmarienhütte) and pres- They separate the garbage into pressed bales 4 of, for example, a rectangular cross section, which are held together in the pressed state by a wrap made of wire or plastic cord. The press balls 4 wrapped in this way are conveyed in succession through a press channel 5 under the pressure of the press ram of the baling press 3. From there they arrive in a guide 6, which is designed, for example, as a tube cage and in which the pressed bales 4 are kept at a short distance from one another by spacers (not shown).

The guide 6 extends through an immersion bath 7, which contains a tub 8 with liquefied sealing material up to a level 9 which exceeds the guide 6. The sealing material can be bitumen, which is liquefied by heating. For this purpose, the immersion bath 7 is assigned heating elements 10, which are designed and arranged accordingly as a heating coil for a circulating heat transfer medium, as electrical or electromagnetic heating elements, as an infrared radiator, as a gas burner or the like. When passing through the immersion bath 7, the pressed bale 4, which is held together by the wrapping in the compressed state, is enclosed in bitumen practically on all sides. The press bale enclosed in bitumen on all sides then passes through a cooling and drying system in which excess bitumen drips off the press bale and the bitumen is cooled and hardened. The result is a press ball held together by the wrapping in the compressed state, which is practically sealed on all sides with bitumen. Any minor defects that may still be present can be repaired by applying bitumen.

In addition to bitumen, all bitumen-like materials are also suitable as sealing material, and liquefaction can also be carried out by dissolving in a solvent. which, however, requires a closed solvent cycle in the case of non-aqueous solvents in order to avoid pollution of the environment. The sealing materials can also be obtained from renewable raw materials, such as those obtained in the processing of agricultural products, for example grain, sugar cane, sugar beet, starch and the like; In particular, gelatin or gelatinous masses are also suitable for this.

FIGS. 2-4 schematically show a device for carrying out a second exemplary embodiment of a method for producing waste baling bales which are suitable for combustion in thermal power stations. A baler 11 contains a bale channel 13 therein. A pressed bale 14 is conveyed through the bale channel 13 in the direction of arrow 15. The bale channel 13 forms the exit of the baler 11, not shown in detail, which can be of the type described, for example, in the above-mentioned company publication "Bollegraaf"; however, a baler of the baler 3 type can also be used instead. The baler 11 works with hydraulic presses and produces cuboid press bales 14 which are pressed out via the bale channel 13. The bale channel 13 has a rectangular cross section adapted to the shape of the bale 14.

The end of the ball channel 13 is followed by a packaging device with a jacket body 16. The jacket body 16 also has a rectangular cross section. The inner cross section of the casing body 16 is slightly larger than the outer cross section of the bale channel 13, so that the jacket body 16 can be displaced telescopically on the bale channel 13. In addition, the casing body 16 is guided by guides 18 and 20. The jacket body 16 is by a hydraulic actuating cylinder 22 between the shown in Fig. 2 Most advanced position and a second, retracted position shown in FIG. 3, displaceable in the axial direction.

In the position of the casing body 16 shown in FIG. 2, the press bale 14 is advanced centrally (in the casing body 16) into the position shown in FIG.

24 generally designates a tube pulling device for pulling a film tube 28 under slight expansion onto the jacket body 16. The hose pulling device 24 is seen in the conveying direction of the press bale 14, i.e. from left to right in Figures 2 and 3 behind the jacket body 16. The tube winding device 24 contains a roller 26 with an elastically stretchable film tube 28. The film tube 28 is spread by a spreading device 30. Pulling means 32 pull the expanded film tube 28 over the jacket body 16. For this purpose, the pulling means 32 have a device for holding the end of the tube on a frame and an adjusting device (not shown) by means of which this frame counteracts the conveying direction of the press bale 14 is movable over the jacket body 16. This is indicated in Fig. 2 by an arrow 34.

The jacket body 16 has a smooth outer surface. It is therefore not a problem to pull the film tube 28 over it. When this has happened, the jacket body 16 is moved by the actuating cylinder 22 into its retracted, second position, which is shown in FIG. 3. The casing body 16 is pushed onto the bale channel 13, as shown in FIG. 3. In this case, the jacket body 16 is removed from the press bale 14 and pulled out of the film tube 28. The film tube 28 was open when it was pulled up the jacket body 16 has been slightly radially stretched. When the jacket body 16 is pulled out, it rests on the baling balls 14 under elastic recovery. The relative movement between the film tube 28 and the press bale 14 is radial, the film slaughter closely fitting against the surface of the press bale 14 and sealing it. The film tube 28 is not pulled over the uneven surface of the press bale 14. The unevenness of the press bale 14 due to the pressing process is also slight. Damage to the film tube 28 is therefore not to be feared.

After the jacket body 16 has been pulled back, the film tube 28 is cut off by a separating device 35 between the press bale 14 and the spreading device 30. This separating device 35 is indicated in FIG. 4 by an arrow. The pulling means 32 let go of the film tube 28. In this case, the pulling means 32 on the jacket body 16 are moved a distance beyond the rear end of the press bale 14, which is the left in FIGS. 2 and 3. The separation of the film tube 28 by the separating device 35 also takes place at a distance from the front end of the press bale 14, which is the right end in FIG. 2. This results in protruding tube ends 36 and 38 at both ends of the press bale 14. This is shown in FIG. 4 . Fig. 4 shows how the film tube 28 has tightened elastically on the surface of the bale 14 and the protruding tube ends 36 and 38 have formed.

The bale 14 is then transported in the direction of arrow 40 transversely to the previous conveying direction. The press bale 14 then passes between two folding and welding devices 42 and 44. By means of these folding and welding devices, the protruding ends of the film tube 28 are similar to an envelope on the forehead. faces of the press bale 14 folded and welded so that a tight seal is obtained. The entire process of enclosing the press bale 14 in the film tube 28 takes place in such a short time that the press bale 14 does not experience any noticeable expansion as a result of the relief from the pressure and the press bale 14 is sealed on all sides by the film tube 28.

A further embodiment of the device according to FIG. 3 is shown schematically in FIG. A shredding device is designated by 46. Garbage is fed into this device via an input funnel 48. The garbage is comminuted by the comminution device 46 into a bulk material with a reasonably homogeneous consistency. The waste comminuted in this way is conveyed by means of a first conveyor device 50 in the form of a conveyor belt to the filling funnel 52 of a screening device 54. This screening device can be constructed in accordance with DE-C-3 644 146. The screening device 54 has a mesh size of approximately 30 mm. The screened fine material with a grain size <30 mm is deposited in a pile 58 by a conveyor belt 56.

The sieve residue is transported by the sieve device 54 to a baler 62, which can be designed in the manner of the baler 3 or 11, by means of a second conveying device 60, which can also form a belt conveyor, and is compressed by the latter into cuboid-shaped press bales 66 . The baler 62 is a channel baler, in which the waste is compressed into the cuboid shape by hydraulically actuated pressing bodies.

Waste wood shredded on the second conveying device 60, shredded and screened waste can be added via a conveyor belt 78. This happens by means of a feed device which has a conveyor belt 78 and a feed hopper 82 and can be fed either directly from an old wood shredder or by means of a shovel loader 80. In one variant, the waste wood can be fed into the comminution device 46 together with the waste. The addition of waste wood not only makes it easier to compress the waste, but also considerably increases the calorific value of the bale and at the same time promotes the combustion process of the bales formed.

A bale channel 64 of the baler 62 has a tubular, rectangular cross section. In this bale channel 64, the pressed bales 66 are gradually advanced to a packaging device 68. The packaging device 68 is essentially designed in the same way as the packaging device described above in connection with FIGS. 2-4 and has a first station 70, in which a film tube is pulled onto the press bale 66. The film tube is pulled up and separated after pulling it up so that it protrudes from the press bale 66 at both ends. In a second station 72 of the packaging device 68, the protruding ends of the film tube are folded in an envelope-like manner over the end faces of the press bale 66 and welded airtight. The pressed bales packed in this way are conveyed transversely by means of a conveyor belt 74 and stored in a stack 76 for removal.

The pressed bales obtained in the manner described above and sealed on all sides can be transported and handled otherwise without the risk of changing their composition, for example they can be stored and removed from the store again, without any possible damage to the seal allow significant air access to or in the material of the baling. The sealed baling balls can therefore also be transported over longer distances and stored in incinerators or interim storage facilities for a long time until they are burned, without their heating value noticeably reduced. The handling and long-term storage of the sealed press bales thus made possible without a noticeable reduction in the calorific value allows heating power plants which operate on the basis of waste incineration to operate continuously and without the addition of fossil fuels, regardless of the amount of waste generated over time, regardless of the seasonal requirement can be.

Claims

claims

1. bales of crushed waste of generally prismatic shape with an all-round seal, which consists of a sealing material which can be burned essentially without residue and without the formation of harmful combustion fuels,

characterized in that a pressed bale (4, 14, 66) made of pre-sorted garbage, which is essentially free of kitchen and food waste as well as glass and metal, is held together in the pressed state and in that the seal is applied to the pressed bale held together in the pressed state (4,14,66) is applied.

2. baling according to claim 1, characterized in that the seal is formed from an elastically deformed film tube (28).

3. bale according to claim 1 or 2, characterized gekennzeich¬ net that the bale (4) is provided with a wire or plastic cord wrapping selected.

4. Bale according to claim 3, characterized in that the sealing material is selected from bitumen or a material formed from renewable raw materials.

5. baling according to claim 4, characterized in that the sealing material formed from renewable raw materials is selected from gelatin or a gelatinous mass.

6. baling according to claim 1, characterized in that the baling (14,66) of garbage particles with a grain size <30 mm is free.

7. press bale according to claim 1, characterized in that the press bale (66) contains added, crushed waste wood.

8. A process for the production of a press bale according to one of claims 1 to 7, in which waste is crushed, compressed into a generally prismatic press bale and is provided on all sides with an essentially residue-free and without formation of harmful combustible combustible seal,

characterized in that a pressed bale (4, 14, 66) made of pre-sorted waste is held together in the pressed state and the pressed bale (4, 14, 66) held together in the pressed state is sealed.

9. The method according to claim 8, characterized in that kitchen and food waste and glass and metal are removed from the garbage by the presorting.

10. The method according to claim 8, characterized in that the crushed waste is sieved.

11. The method according to claim 10, characterized in that garbage particles with a grain size <30 mm are removed from the shredded garbage by sieving.

12. The method according to claim 8, characterized in that shredded waste wood is added to the shredded garbage.

13. The method according to claim 8, characterized in that the shredded and pre-sorted garbage a Ballen¬ press (3,11,62) is fed and provided in the compressed state with a wrapping, which is selected from wire or plastic cord and the Bale (4,14,66) holds together in the pressed state.

14. The method according to claim 8, characterized by the method steps:

(a) inserting the press bale (14, 66) into a prismatic jacket body (16),

(b) pulling a film tube (28) onto the jacket body (16) with slight elastic expansion,

(c) pulling back the jacket body (16) from the press bale (14, 66) and out of the film tube (28) so that the film tube (28) rests elastically on the jacket surface of the press bale (14, 66) .

15. The method according to claim 14, characterized in that the film tube (28) for pulling on the Preßbal¬ len (14,66) is pulled off a roll (26) and spread.

16. The method according to claim 15, characterized in that

(a) the film tube (28) is stretched a distance beyond the rear end of the press bale (14, 66) and is separated from the roll (26) at a distance from the front end of the press bale (14, 66), so that protruding hose ends (36, 38) are formed at both ends of the press bale (14, 66), (b) the press bale (14, 66) is then conveyed across and transversely to the axis and direction of movement of the casing body (16)

(c) the protruding hose ends (36, 38) are folded over the ends of the press bale (14, 66) and are welded in the folded state to form a tight covering.

17. The method according to claim 8, characterized in that an immersion bath (7) with a sealing material, which is selected from bitumen or a material formed from renewable raw materials, is charged, and that the press bales emerging from the baler (3) ( 4) are promoted by a guide (6) passing through the immersion bath (7).

18. The method according to claim 17, characterized in that the sealing material is selected from renewable raw materials made of gelatin or a gelatinous mass.

19. The method according to claim 17, characterized in that from the baler (3) emerging bales (4) under the pressure prevailing in the baler (3) are continuously conveyed by the guide (6).

20. The method according to claim 17, characterized in that the sealing material in the immersion bath (7) is liquefied under the action of heat.

21. Device for carrying out the method according to claim 14, characterized by a baler (11, 62) containing:

(a) an axially displaceably guided, prismatic jacket body (16),

(b) feed means for inserting a press bale (14, 66) into the casing body (16),

(c) one. Hose pulling device (24) for pulling a film hose (28) under slight elastic stretching onto the jacket body (16) and

(d) adjusting means (22) for withdrawing the casing body (16) from the press bale (14, 66) and out of the film tube (28).

22. The apparatus according to claim 21, characterized in that

(a) the press bale (14, 66) can be pushed into the casing body (16) in a first direction (15) by the feed means,

(b) the hose pulling device (24), viewed in the first direction (15), is arranged behind the jacket body (16),

(c) the film tube (28) can be pulled onto the jacket body (16) by the tube pulling device (24) in a second direction opposite to the first direction (15) and (d) the jacket body (16) can be retracted in the second direction by the adjusting means (22).

23. The device according to claim 22, characterized in that

(a) a tubular bale channel (13, 64) is provided for feeding the bale (14, 66) and

(b) the casing body (16) is displaceable between two end positions, whereby it

in the first, advanced position adjoins the end of the bale channel (13, 64) and

is pushed onto the bale channel (13, 64) in the second, retracted position.

24. The device according to claim 23, characterized in that the tube mounting device (24) a holder for a roll (26) of film tube (28), a spreading device (30) for spreading the film tube (28) drawn off from the roll (26) ) and mounting means (32) which engage the spread end of the film tube (28) and can be moved in the second direction over the advanced jacket body (16).

25. The device according to claim 21, characterized in that the baler (62) a Zerkleinerungseinrich¬ device (46) and a subsequent sieving device (54) are connected upstream.

26. The apparatus according to claim 25, characterized in that the screening device (54) is connected via a first conveying device (50) to the comminuting device (46) and via a second conveying device (60) to the baling press (62).

27. The apparatus according to claim 26, characterized in that the screening device (54) has a mesh size of 30 mm.

28. The apparatus according to claim 21, characterized in that the baler (11,62) is preceded by a feed device (78,82) for shredded waste wood.

29. Use of a press bale made of pre-sorted, shredded waste, which is essentially free of kitchen and food waste, glass and metal and which is held together in the compressed state and, in the compressed state, ver¬ all around with a residue-free and without formation of harmful fuels combustible material is sealed for combustion in a thermal power station.

30. Use of a press bale made of pre-sorted, shredded waste, which is essentially free of kitchen and food waste, glass, metal and waste particles with a grain size <30 mm and contains added, shredded waste wood and which is held together in the compressed state and in the compressed state is sealed on all sides with a material which is combustible without residue and without the formation of harmful combustion fuels, for combustion in a thermal power station.