EP2531302B1 - Vorrichtung und verfahren zur erzeugung eines feinkörnigen brennstoffs durch trocknung und prallzerkleinerung - Google Patents

Vorrichtung und verfahren zur erzeugung eines feinkörnigen brennstoffs durch trocknung und prallzerkleinerung Download PDF

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Publication number
EP2531302B1
EP2531302B1 EP11705431.2A EP11705431A EP2531302B1 EP 2531302 B1 EP2531302 B1 EP 2531302B1 EP 11705431 A EP11705431 A EP 11705431A EP 2531302 B1 EP2531302 B1 EP 2531302B1
Authority
EP
European Patent Office
Prior art keywords
gas
impact
reactor
impact reactor
energy
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.)
Not-in-force
Application number
EP11705431.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2531302A2 (de
Inventor
Ralf Abraham
Stefan Hamel
Ralf Schäfer
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.)
Proactor Schutzrechtsverwaltungs GmbH
ThyssenKrupp Industrial Solutions AG
Original Assignee
ThyssenKrupp Uhde GmbH
Proactor Schutzrechtsverwaltungs 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
Application filed by ThyssenKrupp Uhde GmbH, Proactor Schutzrechtsverwaltungs GmbH filed Critical ThyssenKrupp Uhde GmbH
Priority to PL11705431T priority Critical patent/PL2531302T3/pl
Publication of EP2531302A2 publication Critical patent/EP2531302A2/de
Application granted granted Critical
Publication of EP2531302B1 publication Critical patent/EP2531302B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/033—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment comminuting or crushing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/14—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/288—Ventilating, or influencing air circulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
    • B02C23/24—Passing gas through crushing or disintegrating zone
    • B02C23/26—Passing gas through crushing or disintegrating zone characterised by point of gas entry or exit or by gas flow path
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/04—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment drying
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/44—Details; Accessories
    • F23G5/46—Recuperation of heat

Definitions

  • the invention relates to the thermal and mechanical pretreatment substances which may also be present in pasty or viscous form and are referred to below as solid or pasty energy resources, including, for example, biogenic and other highly reactive fuels, fossil fuels and residues, in a baffle reactor.
  • solid or pasty energy resources including, for example, biogenic and other highly reactive fuels, fossil fuels and residues, in a baffle reactor.
  • solids and liquid fractions are mixed together, examples of which are sewage sludge and industrial residues, either on an aqueous basis or on the basis of solvents or energy-containing liquids, such as lubricants.
  • the expansion of the use of renewable energy sources and the recycling of waste and residual materials is the goal worldwide, with an energy or material use being targeted.
  • the material use is made possible by the thermal gasification.
  • the synthesis gas thus produced is the feedstock for downstream chemical syntheses, such as for Fischer-Tropsch, methanol or ammonia synthesis.
  • this particle size can also be significantly greater, depending on the process parameters, and it is also advantageous to reduce the moisture content.
  • energy raw materials such as biomass
  • biogenic residues and waste due to the often tough and fibrous structure such pretreatments according to conventional prior art can be achieved only with high energy and equipment costs.
  • an impingement reactor and method of providing an end product as a fuel comprising reactor housing with rotor and hammer elements; a conduit for blowing in the air or an inert gas centrally into the grinding chamber for the transport of the fine fraction; a screw conveyor, a closure mechanism to the feed opening, a vertical sluice for feeding the feedstock, as well as screen surfaces on a cylindrical periphery of the reactor housing through which fragments of the shredded feedstock can leave the machine side.
  • the object of the invention is therefore to provide a device with simplified apparatus and a more energy-saving method available, with which the drying and comminution can be done in an apparatus, wherein the solid or pasty energy raw materials are pretreated so that they for an entrainment gasification without further Measures are operational.
  • the invention achieves the object by means of a device according to claims 1-10.
  • the invention is characterized in that narrow gaps and cutting elements are not required, whereby the crushing process has little effect on the wear of the material.
  • FIG. 1 Further embodiments of the device relate to the hot-drying gas supply device in the bottom region of the impact reactor, wherein large amounts of drying gas are to be introduced.
  • the holes are made inclined in the radial direction and that the bores are aligned tangentially to the direction of rotation of the baffle elements.
  • the outlet direction of the holes can be aligned with or against the direction of rotation of the rotor of Praiireaktors.
  • the more technically favorable solution depends on the interaction of the properties of the material to be comminuted and the geometrical configurations of the rotor and the impact elements and the mode of operation of the rotor, e.g. the speed and the resulting influence on the local flow processes, from.
  • hot drying gas may be added in the bottom region of the impingement reactor through slot-shaped openings distributed over the circumference.
  • the slots may also have a radial inclination.
  • the slots can also be formed by overlapping mounting of floor panels.
  • drying gas is fed together with the energy raw materials through its supply device into the reactor. It is important to ensure that the drying gas is introduced sufficiently cool into the feeder.
  • a drying of the outer surface of the energy raw materials especially in the case of solid energy resources, causes, which leads to improved conveyability and significantly reduces the tendency to stick.
  • the passage of the drying gas can be carried out both in countercurrent and in direct current.
  • the supply device is heated indirectly. Due to the drying effect, the drying gas cools during passage through the feeder. The heating counteracts this cooling. For heating, the hot drying gas can be used, which itself cools and then passed through the feeder.
  • the drying gas can be freely introduced into the baffle reactor. It is advantageous in this case if the energy raw materials and the drying gas are passed in co-current through the screw conveyor. With a Zellenradscheuse, which connects the silo with the screw conveyor, a backflow into the silo can be prevented.
  • All types of feed for drying gas can also be used additive. It is thus possible to introduce drying gas both via the labyrinth seal, as well as the feed device for energy resources, as well as holes and slots in the bottom region of the baffle reactor in the baffle reactor and thus process technology to respond to a variety of raw materials, which is an advantage of the invention.
  • a suitable impact reactor is, for example, in the DE 196 00 482 A1 described.
  • this apparatus is capable of treating biomass, such as straw or green waste, in the same way as the plastic fractions described therein.
  • biomass such as straw or green waste
  • To improve the mode of action can also devices, as in the application DE 10 2005 055 620 A1 described, meaningfully used.
  • drying and comminution take place simultaneously in the present invention results in synergy effects, both of which obtain advantages.
  • simultaneous treatment in the invention takes place after entry of the coarse particles, a rapid superficial drying and by the further particle heating takes place, from outside to inside, a drying also from the particle exterior to the particle interior instead.
  • the particle size is maintained during drying (for example drum dryers or belt dryers for biomass)
  • comminution by the baffle effect takes place at the same time.
  • the already partially dried outer particle layers are preferably cut off on contact with the baffle elements. The remaining, not yet completely dried particle core is thereby exposed again and is again exposed to the full heat transfer at the same time reduced size.
  • the continuous shredding and simultaneous heating significantly reduces the total drying time.
  • the expenditure on equipment of the usual treatment chain is significantly reduced and at the same time the required specific time requirement is also reduced.
  • FIG. 1 shows Fig. 1 the device within a circulatory operation and Fig. 2 a detail in the rotor shaft of the baffle reactor.
  • the biomass 2 is conveyed via the rotary feeder 3 and the screw conveyor 4 in the impingement reactor 5. There it is crushed by means of the rotor 7.
  • drying gas 8a is supplied via a labyrinth seal and drying gas 8b via bottom openings.
  • the comminuted and dried particles 11 are withdrawn via a separator 6, which is preferably a motor-operated rotary separator, with the gas stream 9 from the impingement reactor 5 and into the particle separator 10, shown here as a filtering separator. Another withdrawal takes place through the side outlet 6a, wherein the withdrawn gas 9a is also passed to the particle separator 10.
  • the size of the particles exiting with the gas stream 9 can be adjusted by the use of the classifier 6. It may also be advantageous to dispense with the motor-driven rotary separator and to use screens or perforated plates, by which the particle size of the solids contained in the gas stream 9 can be influenced.
  • the target particle size of the dried particles 11 is defined by various requirements of the gasification or incineration plant. These are e.g. Requirements for the interaction of reactivity and particle size, on the conveying properties or further, thus may be advantageous for different starting materials, a different particle size or particle size distribution. Therefore, different methods for pre-separation such as sifters or sieves are useful. Depending on the desired particle size, a mass separator or a cyclone separator may be used sensibly as a particle separator 10.
  • the dried particles 11 are separated and discharged by means of the rotary valve 12 in the storage tank 13.
  • the cleaning of the P sieabscheiders 10 is preferably done by means of nitrogen 14.
  • the cleaning of the P sieabscheiders 10 may also be a cleaning with other inert gases or with carbon dioxide, air or oxygen-depleted air.
  • the recycle gas 15, which is obtained from the Pumbleabscheider 10 is clean and contains only small amounts of dust and can the chimney 16 be discharged.
  • a partial flow 17 is previously branched off, and mixed by means of the blower 18 with hot gas, which is obtained from the burner 19 from air 20 and fuel gas 21.
  • the resulting drying gas 22 is added with dilution gas 23 added to the impact reactor 5.
  • drying gas 8a is divided as a drying gas 8a via a labyrinth seal and drying gas 8b via bottom openings as described above as passed into the bottom area of the baffle reactor 5 and also as drying gas 8c in the screw conveyor 4, through which it also enters the baffle reactor 5.
  • the screw conveyor 4 is indirectly heated via a heating medium with Kleinstoffzulauf 24 and Schuffenschreibmoor 25.
  • FIG. 2 a fragmentary detailed view of the baffle reactor 5 in the region of the rotor shaft 34 is shown, via which the rotor 7 is driven by a motor not shown in detail.
  • a rotor receptacle 35 located at the front end of the rotor shaft 34 has a rotor receptacle 35, in the underside of a circumferential recess or groove 36 is introduced, for example, has a rectangular cross-section.
  • a circumferential recess 36 extends from below a circumferential projection 37, which is preferably arranged on the bottom plate 38 of the baffle reactor 5.
  • the projection 37 has a width which is smaller than the width of the recess 36, and does not extend completely with its top to the bottom of the recess, so that between the outer surface of the projection 37 and the inner surface of the recess 36, a labyrinth seal 33rd with a labyrinth passage 33a is formed, through which the full amount of the drying gas (8a + 8b) or a subset (8a) or other gas in the interior of the baffle reactor 5 is introduced.
  • the labyrinth passage may have a width in the range of 2mm to 20mm.
  • the labyrinth seal 33 seen to improve the sealing effect in the radial direction may also have two or more projections 37 which extend into corresponding recesses 36, which are adapted in shape to the shape of the projections.
  • the supply of the drying gas 8a via the labyrinth seal 33 is preferably carried out by one or more below the bottom plate 38 arranged in the waveguide 39 holes 40 along the direction indicated by the arrows 8a supply path.
  • This first extends in the direction of the rotor shaft 34, ie the center of rotation of the rotor 7, then substantially parallel to the rotor shaft or axis of rotation of the rotor 7 in the upward direction and then above the Bottom plate 38 again in the opposite direction through the labyrinth passage 33a through radially outward from the center of rotation of the baffle reactor 5 away, resulting in a particularly efficient sealing and distribution of the drying gas inside the reactor.
  • This can be further improved by the use of one or more, the labyrinth passage 33a fluidly downstream Schleuderolinn 41.
  • the supply of the further drying gas 8b takes place through one or more openings 42 located in the bottom plate 38.
  • These openings 42 can be embodied as a plurality of bores over the circumference or as one or more slots. It is also conceivable to provide oblique bores in order to impart to the gas 8b, as it flows into the impingement reactor 5, a flow direction advantageous in terms of process technology.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Processing Of Solid Wastes (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Drying Of Solid Materials (AREA)
  • Treatment Of Sludge (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
EP11705431.2A 2010-02-04 2011-01-26 Vorrichtung und verfahren zur erzeugung eines feinkörnigen brennstoffs durch trocknung und prallzerkleinerung Not-in-force EP2531302B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11705431T PL2531302T3 (pl) 2010-02-04 2011-01-26 Urządzenie do wytwarzania i sposób wytwarzania drobnoziarnistego paliwa opałowego przez suszenie i rozdrabnianie udarowe

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010006916A DE102010006916A1 (de) 2010-02-04 2010-02-04 Vorrichtung und Verfahren zur Erzeugung eines feinkörnigen Brennstoffs durch Trocknung und Prallzerkleinerung
PCT/EP2011/000336 WO2011095295A2 (de) 2010-02-04 2011-01-26 Vorrichtung und verfahren zur erzeugung eines feinkörnigen brennstoffs durch trocknung und prallzerkleinerung

Publications (2)

Publication Number Publication Date
EP2531302A2 EP2531302A2 (de) 2012-12-12
EP2531302B1 true EP2531302B1 (de) 2013-12-18

Family

ID=44175999

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11705431.2A Not-in-force EP2531302B1 (de) 2010-02-04 2011-01-26 Vorrichtung und verfahren zur erzeugung eines feinkörnigen brennstoffs durch trocknung und prallzerkleinerung

Country Status (16)

Country Link
US (1) US20130199424A1 (ru)
EP (1) EP2531302B1 (ru)
KR (1) KR20130009757A (ru)
CN (1) CN102834179A (ru)
AU (1) AU2011212726B2 (ru)
CA (1) CA2786797A1 (ru)
DE (1) DE102010006916A1 (ru)
DK (1) DK2531302T3 (ru)
ES (1) ES2464277T3 (ru)
MX (1) MX2012009040A (ru)
PL (1) PL2531302T3 (ru)
RU (1) RU2012135070A (ru)
TW (1) TW201134553A (ru)
UA (1) UA105407C2 (ru)
WO (1) WO2011095295A2 (ru)
ZA (1) ZA201204799B (ru)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
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DE102011080375A1 (de) 2011-08-03 2013-02-07 Vescon System Ag Verfahren und Vorrichtung zum Herstellen von organischen Faserstoffen oder Granulaten
CN102607904B (zh) * 2012-03-29 2013-11-13 浙江大学 锅炉水冷壁高温腐蚀气氛监测装置
AT515772B1 (de) * 2014-11-27 2015-12-15 A Tec Holding Gmbh Verfahren zum Aufbereiten von Ersatzbrennstoffen
LU92916B1 (en) * 2015-12-17 2017-07-13 Wurth Paul Sa Grinding and drying plant
DE102016115714A1 (de) 2016-08-24 2018-03-01 Schäfer E. Technik u. Sondermaschinen GmbH Prallreaktor
IT201900006959A1 (it) * 2019-05-17 2020-11-17 Waste Processing Tech Srl Impianto e metodo per il trattamento di rifiuti

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FR1105997A (fr) * 1954-06-09 1955-12-09 Babcock & Wilcox France Procédé de mise en oeuvre de combustibles solides et ses applications
GB828515A (en) * 1957-03-06 1960-02-17 Babcock & Wilcox Ltd Improvements in or relating to pulverisers
US3484948A (en) * 1967-08-09 1969-12-23 John Campbell Whelan Apparatus for exchanging heat between a gas and a particulate matter
DE3341857C2 (de) * 1983-11-19 1994-09-08 Kloeckner Humboldt Deutz Ag Kegelbrecher
JP2913263B2 (ja) * 1995-07-07 1999-06-28 株式会社山和エンヂニアリング 固形物粉砕乾燥装置
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EP0859693B1 (de) * 1995-11-11 2000-04-26 Schäfer Elektrotechnik - Sondermaschinen Verfahren und vorrichtung zum verarbeiten von bauteilen aus mischkunststoffen und damit vermischten anderen baustoffen sowie deren anwendung
ATE509702T1 (de) * 2004-07-14 2011-06-15 Ctu Clean Technology Universe Ag Vorrichtung zum mechanischen zerkleinern eines heterogenen einsatzguts und verfahren zum betreiben derselben
US7100853B2 (en) * 2004-07-27 2006-09-05 Wark Rickey E Deflector for coal pulverizer/classifier
EP1747814A1 (de) * 2005-07-25 2007-01-31 Claudius Peters Technologies GmbH Trocknungsmühle und Verfahren zum Trocknen von Mahlgut
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Also Published As

Publication number Publication date
PL2531302T3 (pl) 2015-01-30
ZA201204799B (en) 2014-03-26
AU2011212726A1 (en) 2012-07-19
UA105407C2 (ru) 2014-05-12
CN102834179A (zh) 2012-12-19
AU2011212726B2 (en) 2014-07-10
CA2786797A1 (en) 2011-08-11
ES2464277T3 (es) 2014-06-02
DK2531302T3 (da) 2014-03-31
DE102010006916A1 (de) 2011-08-04
EP2531302A2 (de) 2012-12-12
TW201134553A (en) 2011-10-16
WO2011095295A2 (de) 2011-08-11
WO2011095295A3 (de) 2011-12-29
US20130199424A1 (en) 2013-08-08
RU2012135070A (ru) 2014-03-10
KR20130009757A (ko) 2013-01-23
MX2012009040A (es) 2012-11-29

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