EP1136245A2 - Installation pour le traitement de déchets polluants - Google Patents

Installation pour le traitement de déchets polluants Download PDF

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Publication number
EP1136245A2
EP1136245A2 EP00123032A EP00123032A EP1136245A2 EP 1136245 A2 EP1136245 A2 EP 1136245A2 EP 00123032 A EP00123032 A EP 00123032A EP 00123032 A EP00123032 A EP 00123032A EP 1136245 A2 EP1136245 A2 EP 1136245A2
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EP
European Patent Office
Prior art keywords
screw
pressure housing
screw conveyor
knife
designed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP00123032A
Other languages
German (de)
English (en)
Other versions
EP1136245A3 (fr
Inventor
Klaus Buttchereit
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fehb Stendal GmbH
Original Assignee
Fehb Stendal GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE10011949A external-priority patent/DE10011949C2/de
Application filed by Fehb Stendal GmbH filed Critical Fehb Stendal GmbH
Publication of EP1136245A2 publication Critical patent/EP1136245A2/fr
Publication of EP1136245A3 publication Critical patent/EP1136245A3/fr
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/12—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing
    • B30B9/122—Means preventing the material from turning with the screw or returning towards the feed hopper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/12—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing
    • B30B9/121—Screw constructions

Definitions

  • the invention relates to a system for the efficient processing of Environmentally harmful waste products, so-called rejects, which exist as mixtures from cellulose waste, plastic waste and other components, in the relevant Industrial areas.
  • rejects from waste paper recycling consisting essentially of film-like plastics, textile components and cellulose residues, in the broadest sense organic substances and metallic and other residues such as wood and stones, as well as thick sludge sludge, are processed in various processing stages and plant techniques.
  • metallic substances are sorted out by detectors, the materials are shredded in shredders, for example, the shredded material is dried or dried in tube dryers, and finally it is also customary to granulate such materials.
  • DE 196 00 482 A1 describes a method and a device for processing components made of mixed plastics and other building materials mixed with them, such as metal parts, glass, rubber, wood, fiber materials and the like, in which the components are crushed and impacted in an agglomerator the plastic, metal, glass, rubber and wood parts and fiber materials are separated from one another or the plastics are processed into granules or as a mass in the plastic state.
  • the process is said to be particularly suitable for recycling light shredder fractions, electronic waste, for processing mixed plastics or foils, and wood composites as well as rubber seals and similar rubber materials should also be able to be processed using this process and the system.
  • the disadvantage of this system is that it has to be implemented with considerable technical and cost expenditure.
  • the object of the present invention is to provide a system for the efficient processing of to develop environmentally harmful waste products, in particular of rejects, with to whom the waste products to be treated are crushed, highly drained and further are treated so that end products are produced in pelletized form.
  • a system designed as a machine consists of a pressure housing that can be assembled from individual pressure housing sections and is supported in a support structure.
  • a screw conveyor is mounted so that it can be rotated and driven, the screw conveyor being designed with stepped screw cores, which creates pressure chambers of different sizes between the screw flights of the screw conveyor, so that different pressures are also present in these screw chamber spaces, which has a positive effect on the dewatering process treating waste products.
  • the screw conveyor is driven by an electric motor that is also integrated in the support structure.
  • the transmission ratio between the screw conveyor and the motor can be constant or the motor can be controlled via a control and regulating device, so that the drive, that is to say the rotational speed of the screw conveyor, can be regulated depending on the prevailing operating conditions in the pressure housing of the system.
  • the pressure housing of the system is designed so that the individual pressure housing sections are formed at the ends with connecting flanges, via which the individual pressure housing sections can be connected to one another, so that the pressure housing of the system is formed as a whole.
  • the length of the screw conveyor which can be rotated and driven in the pressure housing can be designed such that it can be arranged directly in the pressure housing, regardless of whether this pressure housing consists of one or more pressure housing sections.
  • the individual pressure housing sections are formed with so-called water nests, which are arranged circumferentially in the housing of the respective pressure housing section, which have through openings which lead into the interior of the respective pressure housing section, so that when the waste products to be treated move forward, they are not only transported by the screw conveyor , but also be pressed within the pressure chambers between the screw flights, so that the water contained in the waste products is pressed out and reaches the outside through the openings in the water pockets.
  • the squeezed or squeezed water or liquids are collected in a container located below the entire pressure housing.
  • the cutting housing is assigned a cutting housing on the output side, in which cutting tools in the form of perforated disks and knives are arranged.
  • the knives or the knife used for comminuting the waste products are designed as a turbo knife which is connected to the screw conveyor in a positive and non-positive manner, so that it is in operative connection with it and also rotates at the speed of rotation of the screw conveyor.
  • the turbo knife is designed with three knife bars, to which exchangeable knife edges can be assigned.
  • the cutting tools provided in the cutting housing are clamped to one another by means of a pressure piece which can likewise be arranged in the cutting housing, this pressure piece being arranged fixedly in the cutting housing.
  • a pellet crusher is operatively connected to the turbo knife, which is provided on the outlet side of the cutting housing, thus behind the perforated disc, this pellet crusher being connected to and rotating with the screw conveyor and dividing the pelletized material emerging from the perforated disc into desired partial sizes.
  • Another feature of the invention consists in the special design of the screw flights of the screw conveyor, which are formed at certain intervals with through-openings which are functionally related to breakers, which in the broadest sense are arranged congruently on the inner walls of the pressure housing sections.
  • the length and shape of the breakers are designed differently, always depending on the diameter of the respective screw core of the screw section.
  • the screw conveyor can also be designed to be divided several times. This, for example, as a hollow shaft in which certain connecting elements are accommodated, which then connect the individual parts of the screw conveyor to one another.
  • This connection can be both form-fitting and non-positive or in the combination of both types of connection.
  • the screw conveyor To drive the screw conveyor, it is formed on the drive side with a drive pin, which serves to receive the corresponding transmission elements, so that the screw conveyor can be set in rotation by the electric motor provided.
  • the screw conveyor On the outlet side, the screw conveyor has a receptacle which is directly congruent with the receptacle pin of the turbo knife so that the turbo knife can be driven via the screw conveyor.
  • Another feature of the invention is provided with the arrangement of a screw outlet piece provided on the output side of the screw conveyor, which is conical in shape in the outer circumference, can be variably designed in length and is directly or permanently connected to the screw output part.
  • FIG. 1 illustrates how the individual function-related components of the system 1 are integrated in a support structure 6.
  • This relates both to the pressure housing 2 of the system 1 with its associated hopper 4, and to the drive 5 and the cutting housing 10 arranged on the outlet side of the pressure housing 2, the storage or fastening of these individual components of the system 1 in the support structure 6 not is shown in more detail and need not be described in detail, since this is not essential for the function of the system. Due to occupational safety and ergonomic requirements, the entire system 1, especially in the area of the pressure housing 2, is covered with covers, the illustration of which has been omitted here for the sake of simplicity.
  • the function-defining features of the system 1 are the pressure housing 2 shown, as well as the screw conveyor 11 which is rotatably and driven mounted in the pressure housing 2.
  • the complete pressure housing 2 consists of individual pressure housing sections 2 ', 2 "of which are shown in the illustration 2.
  • the individual pressure housing sections 2', 2" are each formed on their end sides with connecting flanges 3, via which the individual pressure housing sections 2 ', 2 " are connected to each other, which is preferably realized via screw connections.
  • the filling funnel 4 is arranged, through which the waste products to be treated are fed. Simultaneously in this area, the drive-side mounting of the screw conveyor 11 is provided, which is driven by means of the drive 5 via transmission elements (not shown).
  • a cutting housing 10 is likewise arranged via a connecting flange 3, in the interior 27 of which the necessary comminution tools such as perforated disks and knives are arranged.
  • the cutting housing 10 has a pressure piece 29 on the end or outlet side, which clamps the cutting tools present in the cutting housing 10 to one another and to the pressure housing 2.
  • the cutting housing 10 is shown in FIG. 7, from which it follows that this cutting housing 10 is formed, on the one hand, with a connecting flange 3 and, on the other hand, with an end flange 28, in which the pressure piece 29 is received and both to the end flange 28 and to the cutting housing 10 is connected.
  • FIG. 7 also shows how the pellet crusher 32 is connected to the screw conveyor 11 and is arranged in front of the cutting set housing 10.
  • a screw outlet piece 18 is provided in this area, which both can be firmly connected to the screw conveyor 11, but also replaceable at the end the screw conveyor 11 can be arranged in the last pressure housing section.
  • the screw flights 12 of the screw conveyor 11 are at predeterminable intervals formed with through openings 14, in the breakers 20, which on the inner walls of the individual pressure housing sections 2 ', 2 "are arranged is shown in an enlarged version in FIG. 5, from which it follows that the Screw flights 12 interrupted, that is, formed with the passage openings 14 are in which the breakers 20 protrude.
  • the individual pressure housing sections 2 ', 2 are formed with so-called water nests 9, which are provided circumferentially in the cylindrical part of the individual pressure housing sections 2', 2".
  • a special embodiment of such a water network 9 is shown in FIG. 3, which clarifies that the water nests 9 consist of blind bores 30 which merge into individual small passage openings 17.
  • the blind bores 30 can have a diameter range of up to 80 mm and the passage openings 17 preferably of 4 mm diameter.
  • the size and the number of water pockets 9 will always depend on the waste product to be treated and the prevailing operating conditions within the pressure housing 2, that is to say on the prevailing pressure and the prevailing conveying speed.
  • the separated water is collected in the container 7 and can drain through the drain 8.
  • the screw outlet piece 18 arranged downstream of the screw conveyor 11 is shown in FIG. 4 shown, which is designed in its embodiment with an outer cone 19, the Length L and thus its cone 19 can be varied in its inclination to the prevailing Operating conditions.
  • the cutting tools are inserted within the cutting housing 10 and consist of perforated disks in a conventional manner and knives, which in the special case is designed as a turbo knife 21.
  • the perforated disks themselves are not shown in detail, since these are commercially available components, while the turbo knife 21 is shown in FIG. 6.
  • the turbo knife 21 is shown in FIG. 6. It is advantageous to design the turbo knife 21 preferably as a three-bladed turbo knife 21, so that the turbo knife 21 has three knife bars 22 to which replaceable knife blades 23 are attached.
  • the cutter bars 22 can be formed directly from the hub 24 when the turbo knife 21 is designed as a casting, or in the case of a welded construction, the cutter bars 22 are welded onto the hub 24.
  • the turbo knife 21 For receiving and driving the turbo knife 21, the latter has a square 25 on the right-hand side, by means of which the entire turbo knife 21 can be inserted into the receptacle 15 of the screw conveyor 11 and is driven via the screw conveyor 11.
  • 6 also shows the arrangement of the pellet crusher 32, which is arranged on the output side of the cutting set housing 10 and is connected to the screw conveyor 11 in a rotationally fixed manner, so that the pellet crusher 32 rotates at the same speed as the screw conveyor 11, and slides during its rotation Pellet breaker 32 in the broadest sense on the surface of the perforated disc and interrupts the flow of the dewatered starting material by dividing this material and being in pellet form.
  • the pellet crusher 32 can be driven separately or reduced in its rotational speed in order to rotate at a speed that has changed to the screw conveyor 11. This will depend on the material to be processed and the prevailing operating conditions.
  • the rejects to be treated and reprocessed are primarily waste from the recycling of waste paper, the dry matter content of which fluctuate between 55 and 65% by mass.
  • the dry substance consists of 30 - 45% by weight of paper pulp, 50 - 65% by weight of plastic waste (plastics / elastics) and 5% by weight of other admixtures such as wood, stones and also metallic residues. After the metallic constituents have been separated out, such rejects are fed into the plant 1 by means of metal detectors and corresponding sorting devices via the hopper 4.
  • the screw flights 12 of the screw conveyor 11 capture these rejects, convey them in the direction of the screw conveyor 11, so that the rejects reach the pressure chambers 31 of the screw conveyor 11, are compressed as a result of the rotary movement of the screw conveyor 11 and the rejects conveyed, so that as a result of this prevailing pressure the liquids, predominantly water, are squeezed out of the rejects, which are discharged from the respective pressure housing section 2 ', 2 "via the water nests 9.
  • the pressure in these pressure spaces 31 increases immediately, and in some cases already dewatered rejects are further compressed or pressed and the water contained in these rejects is pressed out.
  • the pre-shredded rejects pass through the individual pressure housing sections 2 ', 2 "or else and are transported through the entire pressure housing 2 is divided by means of the breakers 20 arranged in the individual pressure housing sections 2 ', 2 ", broken open and circulated in the broadest sense, which has a positive effect on the dewatering process, and finally a further compression of the rejects is made possible.
  • the processes of compressing and pressing the rejects to be treated are further supported by the fact that the pressure housing sections 2 ', 2 "are formed with cables 26 provided on their inner walls, which are designed as recesses machined into the inner walls or as profile strips fastened to the inner walls , which run in the axial direction of the pressure housing 2.
  • the trains 26 can be designed as straight trains 26 or in spiral form.
  • the cross sections of the trains 26 are rectangular, the trains 26 can also be formed with rectangular, trapezoidal or oval cross-sectional shapes.
  • the rejects come out of the last screw flight 12 of the screw conveyor 11, they fall into a space which is formed by the screw outlet piece 18 provided at the end of the screw conveyor 11 and the inner circumference of the last pressure housing section 2 ".
  • the reject materials are distributed over the entire surface and get into This full-surface shape and under pressure on the cutting tools provided in the cutting housing 10 are detected by the turbo knife 21 and comminuted as a result of the rotary movement of the turbo knife 21 by means of its knife edges 23.
  • the end products, the OUTPUT are available on the output side in the form of pellets, the water contents and pellet sizes of which, according to the requirements of the end user, pay more attention to the composition of the input can be set.
  • the pellet size depends on the hole diameter of the perforated disc used.
  • the final water content is influenced by the driving style of the entire system, which is realized via a certain control and regulation characteristic, which directly detects the operating conditions in the pressure housing 2 of the system 1, compares and evaluates it in a corresponding process computer, the control device then controlling the drive 5 acts on the screw conveyor 11, thus ensuring that the entire system can be controlled taking into account the quality of the desired end products, that is to say their sizes and moisture contents.
  • the end product is characterized by the fact that it consists of approx. 70% Dry matter and approx. 30% water exists and for example as a secondary fuel Is used.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Solid Wastes (AREA)
EP00123032A 2000-03-11 2000-10-24 Installation pour le traitement de déchets polluants Withdrawn EP1136245A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10011949 2000-03-11
DE10011949A DE10011949C2 (de) 1999-03-25 2000-03-11 Anlage zur Verarbeitung von umweltbelastenden Abprodukten

Publications (2)

Publication Number Publication Date
EP1136245A2 true EP1136245A2 (fr) 2001-09-26
EP1136245A3 EP1136245A3 (fr) 2003-02-05

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Application Number Title Priority Date Filing Date
EP00123032A Withdrawn EP1136245A3 (fr) 2000-03-11 2000-10-24 Installation pour le traitement de déchets polluants

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EP (1) EP1136245A3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1990181A2 (fr) * 2007-05-10 2008-11-12 Babbini S.P.A. Presse pour déshydratation mécanique
CN114559696A (zh) * 2022-02-25 2022-05-31 琥珀环保技术(中国)有限公司 一种便于灵活安装的模块化压榨机及其工作方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3478679A (en) * 1967-05-24 1969-11-18 Stearns Roger Corp Pulp deliquifying press
US4581992A (en) * 1980-11-15 1986-04-15 Hermann Berstorff Maschinenbau Gmbh Screw press for mechanically separating liquids from mixtures of liquids and solids
US4629326A (en) * 1985-02-23 1986-12-16 Hermann Berstorff Maschinenbau Gmbh Pin-barrel extruder having adjustable pins
DE4230384A1 (de) * 1992-09-11 1994-03-17 Escher Wyss Gmbh Entwässerungspresse für durch Komprimieren entwässerbare Stoffe
FR2706792A1 (en) * 1993-06-23 1994-12-30 Inst Francais Du Petrole Device for densifying mainly plastic waste for the purpose of recycling them
DE19538347A1 (de) * 1994-11-17 1996-05-23 Voith Sulzer Stoffaufbereitung Verfahren zum Entwässern, Verdichten und Fördern von Papierfaserstoff sowie Vorrichtung zu seiner Durchführung
DE19646718A1 (de) * 1996-11-12 1998-05-20 Kilia Fleischerei Und Spezial Variables Schneid- und/oder Preßsystem insbesondere für einen Fleischwolf bzw. für eine Reststoffverdichtungsvorrichtung

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3478679A (en) * 1967-05-24 1969-11-18 Stearns Roger Corp Pulp deliquifying press
US4581992A (en) * 1980-11-15 1986-04-15 Hermann Berstorff Maschinenbau Gmbh Screw press for mechanically separating liquids from mixtures of liquids and solids
US4629326A (en) * 1985-02-23 1986-12-16 Hermann Berstorff Maschinenbau Gmbh Pin-barrel extruder having adjustable pins
DE4230384A1 (de) * 1992-09-11 1994-03-17 Escher Wyss Gmbh Entwässerungspresse für durch Komprimieren entwässerbare Stoffe
FR2706792A1 (en) * 1993-06-23 1994-12-30 Inst Francais Du Petrole Device for densifying mainly plastic waste for the purpose of recycling them
DE19538347A1 (de) * 1994-11-17 1996-05-23 Voith Sulzer Stoffaufbereitung Verfahren zum Entwässern, Verdichten und Fördern von Papierfaserstoff sowie Vorrichtung zu seiner Durchführung
DE19646718A1 (de) * 1996-11-12 1998-05-20 Kilia Fleischerei Und Spezial Variables Schneid- und/oder Preßsystem insbesondere für einen Fleischwolf bzw. für eine Reststoffverdichtungsvorrichtung

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1990181A2 (fr) * 2007-05-10 2008-11-12 Babbini S.P.A. Presse pour déshydratation mécanique
EP1990181A3 (fr) * 2007-05-10 2009-10-21 Babbini S.P.A. Presse pour déshydratation mécanique
CN114559696A (zh) * 2022-02-25 2022-05-31 琥珀环保技术(中国)有限公司 一种便于灵活安装的模块化压榨机及其工作方法
CN114559696B (zh) * 2022-02-25 2023-08-29 琥珀环保技术(中国)有限公司 一种便于灵活安装的模块化压榨机及其工作方法

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Publication number Publication date
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