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WO2014180858A1 - Presse à granuler pour produire des granulés - Google Patents

Presse à granuler pour produire des granulés Download PDF

Info

Publication number
WO2014180858A1
WO2014180858A1 PCT/EP2014/059259 EP2014059259W WO2014180858A1 WO 2014180858 A1 WO2014180858 A1 WO 2014180858A1 EP 2014059259 W EP2014059259 W EP 2014059259W WO 2014180858 A1 WO2014180858 A1 WO 2014180858A1
Authority
WO
WIPO (PCT)
Prior art keywords
rolling surface
pelleting press
rollers
flat die
press
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.)
Ceased
Application number
PCT/EP2014/059259
Other languages
German (de)
English (en)
Inventor
Frank Heymanns
Johann Stehle
Michael Kluschkewitz
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.)
Dieffenbacher GmbH Maschinen und Anlagenbau
Original Assignee
Dieffenbacher GmbH Maschinen und Anlagenbau
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
Application filed by Dieffenbacher GmbH Maschinen und Anlagenbau filed Critical Dieffenbacher GmbH Maschinen und Anlagenbau
Publication of WO2014180858A1 publication Critical patent/WO2014180858A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/22—Extrusion presses; Dies therefor
    • B30B11/228—Extrusion presses; Dies therefor using pressing means, e.g. rollers moving over a perforated die plate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0082—Dust eliminating means; Mould or press ram cleaning means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/10—Biofuels, e.g. bio-diesel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel

Definitions

  • the invention relates to a pelleting press for the production of pellets according to the preamble of claim 1.
  • pellets also known as pellets or granules, from fines or compacted and / or molten material is already known.
  • comminuted biomass such as sawdust, dust or the like
  • Chipboard used by the woodworking industry but it can also freshly harvested stocks or in the woodworking industry unusable types of wood or waste materials are used.
  • Block power plants or special high-temperature furnaces for heat generation and / or for the production of electrical energy can also cleanly burn small amounts of polluted material (pellets made of particleboard or MDF boards with or without a coating or a coating).
  • the wood pellets are usually produced in so-called pelleting presses, in which the material to be pressed is pressed by moving and / or active rolling rolls, also called roll-up rolls, through bores of a die. Through the holes, the material (biomass) is formed and discharged as strands from the holes. Under holes are understood to mean all openings, which are preferably carried out substantially cylindrical, are arranged in a die for the passage and shaping of the material. The holes can also larger inlet areas (subsidence) to improve the
  • Flat dies roll the roller rollers circular (mill construction).
  • the invention preferably deals with flat dies, but may also be used with ring dies be used.
  • the material to be compacted may be not only biomass for incineration in fireplaces, but any pelletable material such as feed or food, coal, plastic or the like.
  • the possibilities of processing and spreading the biomass, or the post-processing (shredding of the strands, cooling, storage, transport) of the pellets need not be discussed further. Reference is made to the prior art.
  • Material is provided a feed cylinder, which is arranged coaxially with and above the ring die. Within the feed cylinder, a distributor cone is arranged to form a passage for material to be pressed. It is still an outer one Cylinder is provided, which is secured at its lower end to the ring die and extends vertically upwards. At the upper end of the outer cylinder, a disc-shaped support ring is arranged. The feed cylinder is concentrically disposed within the carrier ring and has an outer diameter which is slightly smaller than the inner diameter of the carrier ring.
  • the press described in this document has a very compact design, which means that maintenance or repairs must be carried out in a small space, which is time consuming and costly. In the event of damage to the die, the rollers, the bearings or blockage of the scattering space in front of the rollers, these are
  • Circular die too small or occupied by the hollow drive shaft In addition, the access is made more difficult because of the outer cylinder.
  • the document DE 10 2009 051 481 A1 describes a pelleting press for the production of pellets from biomass, with a flat die and several rolls, which are arranged above the flat die.
  • the pelleting press has a modular design that facilitates maintenance. Dust formation or dust spreading is not addressed in the document. It is therefore an object of the present invention to provide an improved pelleting press which overcomes the foregoing drawbacks, and more particularly to the formation of dust deposits without significantly increasing maintainability
  • a pelleting press for the production of pellets of material to be pressed, wherein preferably biomass is pelletized for use as fuel in fireplaces, and in particular the biomass consists of cellulose and / or lignocellulosic fibers, chips, or chips, the pelleting press a flat die and a plurality of on one
  • Pelleting press further comprises a cover which covers the rolling surface and the rollers and einhaust.
  • the cover preferably interacts with the flat die in such a way as to define a space which is essentially particle-tight, preferably dust-tight, in particular airtight, to the outside.
  • the cover may preferably comprise a plurality of roller housings and a
  • a chute section may be formed in the roller housings for feeding biomass to be pressed onto the rolling surface of the flat die and / or in front of the roller arranged in the roller housing.
  • an opening may be provided.
  • the opening may in particular an opening for sucking off air, or a
  • the cover further comprises a plurality of inner side covers and outer side covers disposed at least partially over respective edge regions of the flat die formed adjacent the rolling surface, and wherein the rolling surface covers are disposed between the inner and outer side covers.
  • the Abrollfambaenabdeckungen are arranged in its plane substantially parallel to the rolling surface in a plane which is arranged between the axes of the roller and the rolling surface, particularly preferably at the level of an outlet edge of a chute.
  • annular sealing means may be provided, each between an adjacent the rolling surface formed edge region of the flat die and the cover, in particular the inner and the outer side covers, are arranged.
  • Sealing devices preferably each have at least one silicone band.
  • the Abroll vomabdeckungen between two rollers may be arranged such that it is located at a distance between the axis of the roller and the rolling surface. This results in a particularly small volume for the compression chamber, which can also be easily inertized or extracted. Large volumes, especially dangerous for dust explosions, are not available and need not necessarily be monitored.
  • roller housing essentially einhausen the rollers and parts of the axes, but the bearings of the rollers relative to the
  • Temperatures preferably temperatures above 50 ° C, to serve.
  • the high temperatures from the compression work are not released directly to the rest of the pelleting press, so that temperature-induced deformation, wear or expansion problems can be significantly minimized.
  • the bearings of the rollers are not directly the
  • a replacement cover is provided, which is suitable instead of a roll housing two Abroll vomabdeckungen connect and continue to live in the compression area. This would be necessary, for example, if, for example, a part of the pressing devices is shut down for maintenance or disuse due to low utilization. Thus, the pressing device can be lifted out of the press and instead of the
  • roller housing is applied a replacement cover, which again the
  • the rolling surface cover may form part of the chute section or an opening for one
  • a part of the round roller housing serves or is designed to serve as part of a chute section.
  • This has particular advantage since the rounding below the axis of the roll (in the direction of the rolling surface) is able to give the material to be fed (falling) on the feed side of the roll (and the rolling surface) a push that this in the direction of movement of the flat die is moved.
  • the material fall down vertically, but it also already has a similar or even the same rate of speed as the flat die, resulting in a more even support of the material on the flat die.
  • a similar design may also have the die cover.
  • the opening in the Abrollsocichenabdeckung or in the roll housing is able to introduce means for inerting in the compression space.
  • Fig. 1 is a plan view of a circular flat die and several on it
  • Fig. 2 is a side view in section of Fig. 1;
  • Fig. 3 is a view obliquely from above a cover of a pelleting press according to
  • Fig. 4 is a sectional view taken along line AA of Fig. 3; and 5 is a sectional view taken along the line BB of Fig. 3rd
  • Figures 1 and 2 show a section of a pelleting press 3 according to an embodiment, wherein the supply of biomass 1 is shown for clarity only as an arrow.
  • FIG. 1 shows a plan view of a circular flat die 4 and several rolls 5 rolling thereon in four pressing devices or press racks 12. This number is not restrictive and, depending in part on the inner or outer diameter of the flat die 4, a multiplicity of
  • Pressing devices 12 may be arranged in the pelleting press 3.
  • the flat die 4 with the rolling surface 19 is movably mounted in the pressing devices 12 by means of bearings 9 and is driven by at least one drive 27 for performing a circular movement about the axis of the flat die 4.
  • Optional drives of the rollers 5 in the pressing devices 12 are not shown.
  • the rollers 5 are arranged in a fixed position in the pressing devices 12, so that the rollers 5 roll with their surfaces on the rolling surface 19 of the flat die 4, or roll on biomass 1, which rests on the rolling surface 19 to the
  • Fig. 2 can be seen in a section of Fig. 1, the pelleting press 3 on a foundation 14, wherein in the schematic sectional view of a press frame 21 with a multi-part press frame, which is arranged from a lower crosshead 7 and two pull tabs 6, wherein in the pull tabs 6 mounted axis 16 of the roller 5 by means of corresponding machine elements, respectively bearing, is movably held.
  • the biomass 1 is pressed through the holes 13 into pellets 10.
  • the flat die 4 driven in this example is supported on the lower crosshead 7 by means of bearings 9.
  • Pressing device 12 and the press racks 21 has priority and has been omitted for reasons of clarity on the representation of obvious and known mechanical system parts.
  • the pressing device 12 on the left side no own upper crosshead 8, as shown in the right-hand illustration.
  • the axis 16 of the roller 5 take over the function of the upper crosshead 8.
  • a preferred Aufs Equipmentsbeispiel have multi-part press frame latches or bolts 15, with which they can be quickly disassembled.
  • the side walls 1 1 limit the danger space or the compression space 2 in its lateral extent in a manner known from the prior art.
  • the usual previously known covers of pelleting presses which rest as a hood or cover on the side walls 1 1 and normally shield the entire pressing device or pelleting press as a danger space or to protect emissions from the pelleting press.
  • the pelleting press 3 has a new, preferably additional, cover, which is to be described in more detail with reference to FIGS. 3 to 5.
  • 3 to 5 show different views of the new cover, which together with the flat die 4 defines a space, preferably the compression space 2 or the roller space, which covers and houses the rolling surface 19 and / or the rollers 5 and the outside essentially particle-tight, preferably dustproof, in particular airtight can be completed.
  • a roller housing 60 is provided for each roller 5, which surrounds the roller 5.
  • rolling surface covers 31 are respectively arranged, which cover the rolling surface 19 of the flat die 4 in this area.
  • Side of the Abroll vomabdeckonne 31 are, in the radial direction, inner side covers 33 and outer
  • the Abroll medicinalabdeckungen 31 may have a Have flange 32 for connection to the adjacent, arranged in the direction of rotation of the flat die 4, roller housing 60.
  • the Abroll vomabdeckungen 31 are preferably with screws or other releasable fastening means to the side covers 33, 34 and the
  • Roll housing 60 attached. This allows easy access to the rolling surface 19, for example for inspection or maintenance.
  • the sealing means 40 may each comprise an annular element, such as an iron profile, which are fastened on the corresponding edge region 24, 25 with screws.
  • the profile can also be formed vertically upwardly projecting webs 42, between which a silicone strip is guided and held as a sealing element 50, in particular slidably held.
  • the silicone band may further be guided and held, in particular slidably, between corresponding webs 36 on the underside of the side covers 33, 34.
  • the roller housings 60 can have horizontally oriented edge covering sections 64, and webs 66 are formed on the other underside.
  • the webs 36, 42, 66 each vertically spaced apart, so that an offset between them can be compensated by the flexibility of the silicone strip. This allows a secure seal even in the event that the
  • Flat die 4 expands up to 150 to 200 ° C due to the possible during operation heating.
  • FIGS. 3 to 5 each show only a silicone band, as a sealing element 50, which is respectively arranged in the region of an inner or outer edge region 24, 25, and held between webs 36, 42, 66, this is not restrictive, and in each case a plurality of silicone bands, or other sealing elements 50 may be provided, in particular in order to improve the tightness.
  • roller housings 60 can be made in two parts, in particular separated along a vertical cutting line, to allow easier assembly and maintenance. Also, the roller housings 60 each have a chute section 61, which serves biomass 1 on the
  • roller housings 60 may be provided with at least one opening 62, which may serve, for example, to expel air from the space which is between the roller housings 60.
  • Cover and the flat die 4 is defined to suck.
  • the air, or the dust contained therein, for example, can be recycled back to mixed with newly supplied biomass 1, in particular after mixing and dosing, to be fed again for compression via one of the chute sections 61.
  • the openings 62 can also be used for pressure relief, for example in the case of a deflagration or even explosion of the dust contained in the air, which is guided within the space defined between the flat die 4 and the cover.
  • the openings may be equipped with rupture disks or explosion flaps, or be connected, as well as further connected, for example, with blowpipes.
  • Silicone band the use also in large pelleting presses, where the

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Glanulating (AREA)

Abstract

L'invention concerne une presse à granuler pour produire des granulés dans une matière à compacter, de préférence une biomasse, en vue de les utiliser comme combustible dans des foyers, la biomasse étant constituée de copeaux, de particules ou de fibres cellulosiques et/ou lignocellulosiques. La presse à granuler présente une matrice plate et une pluralité de galets roulant sur la matrice plate afin de compacter la biomasse sous forme de granulés par l'intermédiaire de trous ménagés dans la matrice plate. La presse à granulés présente en outre un élément de recouvrement qui recouvre et renferme la surface de roulement et/ou les galets. Il est prévu en particulier que l'élément de recouvrement (31) de la surface de roulement soit disposé entre les galets (5) de telle sorte qu'il se trouve entre l'axe (5) des galets et la surface de roulement (19). De cette manière, l'espace de compression (2), et ainsi la zone de poussière, entre deux galets (5) ne dépassent pas la distance entre les axes (16) et la surface de roulement (19). Par ailleurs, il est prévu en particulier que le boîtier de galet (60) renferme essentiellement les galets (5) et des parties des axes (5), mais protège les supports des galets (5) vis-à-vis de l'espace de compression.
PCT/EP2014/059259 2013-05-06 2014-05-06 Presse à granuler pour produire des granulés Ceased WO2014180858A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013104639.8A DE102013104639A1 (de) 2013-05-06 2013-05-06 Pelletierpresse zur Herstellung von Pellets
DE102013104639.8 2013-05-06

Publications (1)

Publication Number Publication Date
WO2014180858A1 true WO2014180858A1 (fr) 2014-11-13

Family

ID=50771472

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/059259 Ceased WO2014180858A1 (fr) 2013-05-06 2014-05-06 Presse à granuler pour produire des granulés

Country Status (2)

Country Link
DE (1) DE102013104639A1 (fr)
WO (1) WO2014180858A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105688747A (zh) * 2016-02-18 2016-06-22 柳州东侯生物能源科技有限公司 生物质燃料成型机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR891152A (fr) * 1942-07-10 1944-02-29 Olier Sa Ets A Machine à agglomérer
DE2049648A1 (de) * 1969-12-18 1971-07-08 VEB Kombinat Fortschritt Landma schinen, Neustadt in Sachsen, χ 8355 Neustadt Einrichtung zum Schmieren und Abdichten der Lagerstellen bei Pelletpressen
US5277572A (en) 1992-05-12 1994-01-11 Montcalm Fibre Corporation Densifier for densifying coated paper
DE102009051481A1 (de) 2009-10-30 2011-05-05 Dieffenbacher Gmbh + Co. Kg Pelletierpresse zur Herstellung von Pellets
DE102009051379A1 (de) * 2009-10-30 2011-05-05 Dieffenbacher Gmbh + Co. Kg Pelletierpresse zur Herstellung von Pellets (SW)

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR891152A (fr) * 1942-07-10 1944-02-29 Olier Sa Ets A Machine à agglomérer
DE2049648A1 (de) * 1969-12-18 1971-07-08 VEB Kombinat Fortschritt Landma schinen, Neustadt in Sachsen, χ 8355 Neustadt Einrichtung zum Schmieren und Abdichten der Lagerstellen bei Pelletpressen
US5277572A (en) 1992-05-12 1994-01-11 Montcalm Fibre Corporation Densifier for densifying coated paper
DE102009051481A1 (de) 2009-10-30 2011-05-05 Dieffenbacher Gmbh + Co. Kg Pelletierpresse zur Herstellung von Pellets
DE102009051379A1 (de) * 2009-10-30 2011-05-05 Dieffenbacher Gmbh + Co. Kg Pelletierpresse zur Herstellung von Pellets (SW)

Also Published As

Publication number Publication date
DE102013104639A1 (de) 2014-11-06

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