EP1347237A2 - Méthode pour le retraitement du résidu provenant de l'industrie de fabrication de la cellulose et du papier - Google Patents

Méthode pour le retraitement du résidu provenant de l'industrie de fabrication de la cellulose et du papier Download PDF

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Publication number
EP1347237A2
EP1347237A2 EP03450071A EP03450071A EP1347237A2 EP 1347237 A2 EP1347237 A2 EP 1347237A2 EP 03450071 A EP03450071 A EP 03450071A EP 03450071 A EP03450071 A EP 03450071A EP 1347237 A2 EP1347237 A2 EP 1347237A2
Authority
EP
European Patent Office
Prior art keywords
residues
cyclone
combustion chamber
combustion
hot wind
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Withdrawn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
EP03450071A
Other languages
German (de)
English (en)
Other versions
EP1347237A3 (fr
Inventor
Alfred Dipl. Ing. Edlinger
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.)
Tribovent Verfahrensentwicklung GmbH
Original Assignee
Tribovent Verfahrensentwicklung 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 Tribovent Verfahrensentwicklung GmbH filed Critical Tribovent Verfahrensentwicklung GmbH
Publication of EP1347237A2 publication Critical patent/EP1347237A2/fr
Publication of EP1347237A3 publication Critical patent/EP1347237A3/fr
Withdrawn legal-status Critical Current

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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
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/04—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste liquors, e.g. sulfite liquors
    • 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
    • F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
    • F23G5/085—High-temperature heating means, e.g. plasma, for partly melting the waste
    • 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
    • F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
    • F23G5/14—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion
    • 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
    • F23G5/32—Incineration of waste; Incinerator constructions; Details, accessories or control therefor the waste being subjected to a whirling movement, e.g. cyclonic incinerators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00—Pretreatment
    • F23G2201/70—Blending
    • F23G2201/702—Blending with other waste
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2202/00—Combustion
    • F23G2202/20—Combustion to temperatures melting waste
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2206/00—Waste heat recuperation
    • F23G2206/10—Waste heat recuperation reintroducing the heat in the same process, e.g. for predrying

Definitions

  • the invention relates to a method for processing residues from the pulp and paper industry, in which the Residues are burned.
  • the composition of the residues of the pulp or paper industry naturally varies and there exist alongside high amounts of bark and wood residues also primarily Residues from deinking systems.
  • deinking sludges which arise from the treatment of waste paper, which A deinking process is used to produce recycled paper be subjected to constant increase in recent years and place next to residues from wastewater treatment plants the second largest residue fraction in the pulp and paper industry
  • residues from the fiber and Paper preparation after suspending waste paper or Pulp in hydrocyclones or other sorting plants There are also residues from the fiber and Paper preparation after suspending waste paper or Pulp in hydrocyclones or other sorting plants.
  • the emerging Residues usually contain short paper fibers and pigments and thus mostly calcium carbonate or Kaolin.
  • rejects Another large fraction of residues from waste paper processing represent so-called rejects, which in different cleaning levels as dirt or drum ejection accrues.
  • rejects or "reject” also contain Foreign products such as paper clips, plastic, rubber, glass or stone components.
  • the invention now aims to propose a particularly simple and immediate usability for such residues from the pulp and paper industry, with which products which can be used directly in the cement industry can be obtained in a simple process.
  • the method according to the invention essentially consists in that the combustion is carried out with the formation of a melt of the non-combustible portion of the residues at temperatures above 1150 ° C. and that the molten slag is drawn off and granulated or comminuted.
  • incineration with the formation of a melt and thus by a combustion process with significantly higher temperatures direct slagging and immediate melting is ensured, this molten slag subsequently being able to be granulated and comminuted using simple methods.
  • waste materials from the paper industry can in fact form slags with a composition of 4 to 15% by weight of Al 2 O 3 , 30 to 60% by weight of CaO and 30 to 45% by weight of SiO 2 , typically forming slags also have Fe 2 O 3 in amounts of less than 2% by weight and MgO in amounts of between 3 and 5% by weight.
  • a typical basicity of such slags is a C: S ratio of approximately 1.4.
  • the starting material usually contains at least 44% dry matter and a total organic substance (TOC) content of about 25% by weight.
  • TOC total organic substance
  • Such a composition results in calorific values Hu of approx. 8,500 KJ / kg, which, with suitable burner design and the use of a hot wind, can immediately achieve the high temperatures required for direct slagging according to the invention.
  • the typical analysis of the slag usually shows 35% by weight of CaO, 35% by weight of SiO 2 , 20% by weight of Al 2 O 3 , 2% by weight of Fe 2 O 3 and 5% by weight MgO, the composition depending on the weighting of the various residues of the type mentioned can be varied accordingly.
  • the method according to the invention is advantageously carried out in such a way that the residues are at least partially dried and fed to a cyclone, whereupon the particles leaving the cyclone in the axial direction with respect to the rotating movement of the particles into the Combustion chamber ejected, ignited and burned to form a melt.
  • a cyclone which, in contrast to the usual mode of operation of a cyclone, is not operated as a separator or rather as a metering system, means that the pre-dried material is accelerated in the circumferential direction and can be ejected in the axial direction like a helix.
  • Material is thus ignited in a correspondingly rapid rotation and correspondingly pre-compressed or accelerated and implemented in a combustion chamber with a correspondingly directed inflow of hot wind at a high temperature, since the individual particles can be brought to the correspondingly high temperature and thus to the melting temperature extremely quickly.
  • the combustion can be initiated by means of an auxiliary burner, heated combustion air or combustion oxygen having a temperature of preferably 600 ° to 1200 ° C. being introduced in a particularly advantageous manner in such a way that the particles leaving the cyclone are expelled from the hot chamber at the entrance to the combustion chamber with a coaxial jacket become.
  • the atomized particles can be melted quickly in a small-sized combustion chamber, the melt droplets being collected accordingly and in turn being discharged as a liquid melt.
  • the design is advantageously made in such a way that the coaxial jacket from the hot wind is expelled into the combustion chamber by means of a swirl body of an annular slot nozzle with a rotating movement.
  • the direction of the flow must be given special attention in order to achieve the high temperatures, since the process should primarily be carried out in such a way that slagging occurs immediately and as quickly as possible, with CaO and SiO 2 or Al 2 O 3 in contribute to the melt exothermic heat of neutralization, which favors a rapid complete melting.
  • a corresponding bypass also allows chlorine to be discharged here.
  • Sulfur compounds can also be separated accordingly with a subset of the feed material or a subset of the process product.
  • the invention When the sludge is drying, the invention must not now be worked with high temperatures, because a decomposition of the raw material before the actual combustion under simultaneous Melting of the particles can be largely prevented should. In particular, it is intended to prevent pre-drying volatile organic substances are expelled can, which could reduce the calorific value.
  • the method according to the invention is therefore advantageously carried out in such a way that that the cyclone with primary air at a temperature of ⁇ 100 ° C, in particular ambient temperature, is operated and that at the axial exit of the cyclone hot wind with temperatures from> 500 ° C, in particular 600 ° C to 1200 ° C, is supplied.
  • the combustion gases or gasification products of the combustion chamber can be subjected to post-combustion in a particularly simple manner are generated, generating steam during the afterburning can and with advantage the steam generated for granulation and crushing the melts or as process steam for the Pulp or paper production can be used. All in all the result is a relatively small-scale facility, with which directly from residues from the pulp and Paper industry through direct slagging and the like Granulation and comminution formed cement-permeable material can be, by the appropriate, with relatively cool Air drying the formation of pollutants and especially the development of dioxin as well as an early one Expulsion of hydrocarbons or others volatile organic substances is prevented.
  • a hot cyclone can alternatively conventionally operated as a melting cyclone with a hot wind be used.
  • FIG. 1 shows a melting device to carry out the method according to the invention in part Section
  • Fig. 2 is a schematic representation of a modified Embodiment with additional facilities for the Operation of such a system.
  • Fig. 1 is a silo 1 for the absorption of dry granules seen.
  • the dry granules are made by drying residues won and should come from the pulp and paper industry be pre-shredded as a precautionary measure so that a maximum Diameter of ⁇ 1.5 mm and preferably of ⁇ 500 ⁇ for the individual particles.
  • the particles get through a Cell wheel lock 2 in a dosing cyclone operated with cold air 3.
  • Carrier gas is directed in the direction of a tangential flange of arrow 4, where cold air is used arrives and the particles get a twist, which is schematic is indicated by the helix 5. That accelerated Material passes through a mixing nozzle 6 and one Guide body 7 in a muffle 8 and is burned there with hot wind.
  • Hot wind is blowing through the mixing nozzle in the direction of the arrow 9 supplied, which is connected to the nozzle box 10.
  • the hot wind with a temperature of 600 to 1200 ° C becomes hot blown tangentially, possibly also a counter-swirl to the the helical movement corresponding to line 5 appropriate swirl can be achieved.
  • a conical guide body be arranged, which corresponds to the guide body 7 can be trained.
  • Such a valve cone leads Educt flow into the patient vortex, which is especially for Educt throughputs in the order of 5000 kg / h or more of Advantage is.
  • a feeder stamp 16 To regulate the A feeder stamp 16 is arranged with a melt outlet which the outlet of the melt can be checked and the melt directly into a microgranulation, for example a steam jet mill or hot water granulation, can be applied.
  • Hot exhaust gas becomes via the opening 17 deducted and used thermally accordingly.
  • Via a tangential connector 18 becomes further exhaust gas in the direction of arrow 19 deducted, the exhaust gas at temperatures of 1200 to 1600 ° C. accrues.
  • a control flap 20 is used to part of the Exhaust gas with a correspondingly high temperature over the space above of the melt pool to flow, this part in Emerges in the direction of arrow 17 and at the same time prevents that freezing of the bath is observed at this point.
  • the hot exhaust gas drawn off in the direction of arrow 17 is supplied to an exhaust gas air heat exchanger 29, with cold air is supplied via line 21.
  • the emerging hot wind is in turn via line 22 in the direction of arrow 9 flowed into the dosing cyclone 3, depending on the heat available a corresponding sludge to be processed or the residues Excess energy used for process steam generation can be.
  • the heat exchanger 29 can on the one hand preheated cold air in a hot wind store 23 export or via line 24 process steam as Provide export steam.
  • the material fed into the silo 1 becomes a sludge dryer 25 taken, in which with warm exhaust gases, which over the Line 26 are supplied, a corresponding drying without The sludge decomposes. Via line 27 can cold clean gas are drawn off.
  • the gas drawn off via line 27 can advantageously be used as a cold carrier gas in the direction of arrow 4. Furthermore, oxygen can be blown into line 22 in the hot wind in order to achieve 0 2 enrichment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Processing Of Solid Wastes (AREA)
  • Paper (AREA)
  • Gasification And Melting Of Waste (AREA)
EP03450071A 2002-03-19 2003-03-18 Méthode pour le retraitement du résidu provenant de l'industrie de fabrication de la cellulose et du papier Withdrawn EP1347237A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT4172002A AT411019B (de) 2002-03-19 2002-03-19 Verfahren zum aufarbeiten von rückständen aus der zellstoff- und papierindustrie
AT4172002 2002-03-19

Publications (2)

Publication Number Publication Date
EP1347237A2 true EP1347237A2 (fr) 2003-09-24
EP1347237A3 EP1347237A3 (fr) 2005-03-16

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EP03450071A Withdrawn EP1347237A3 (fr) 2002-03-19 2003-03-18 Méthode pour le retraitement du résidu provenant de l'industrie de fabrication de la cellulose et du papier

Country Status (2)

Country Link
EP (1) EP1347237A3 (fr)
AT (1) AT411019B (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2001501C2 (nl) * 2008-04-18 2009-10-20 Dhv B V Werkwijze voor het vervaardigen van energie en synthetische bouwmaterialen, zoals basalt, grind, bakstenen, tegels enzovoort en dergelijke materialen uit hoogcalorisch afval en minerale reststoffen.
CN102366756A (zh) * 2011-09-21 2012-03-07 浙江国裕资源再生利用科技有限公司 一种回收利用造纸废渣的方法
CN103900075A (zh) * 2014-04-09 2014-07-02 大连容大资源循环利用咨询设计有限公司 一种燃气恒温蓄热燃烧装置
CN105556211A (zh) * 2013-06-10 2016-05-04 爱德华兹有限公司 生产气体减少
CN113732022A (zh) * 2021-09-09 2021-12-03 广西北投交通养护科技集团有限公司 一种地聚物基泡沫轻质土生产用工业固体废物降解装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108954336B (zh) * 2017-11-23 2019-08-16 武汉市艾义法德环保科技有限责任公司 等离子反应炉系统
CN114427682B (zh) * 2020-10-29 2025-03-14 新疆大学 一种含固相物和水的高浓度低沸点有机废液的处理方法
CN121539973B (zh) * 2026-01-20 2026-04-03 金冶(内蒙古)工程技术有限公司 一种液态渣热风处理及热能回收方法及系统

Family Cites Families (8)

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GB2055633B (en) * 1979-07-19 1982-11-10 Greenforge Ltd Pneumatic conveyance of solid fuel to a boiler
US5018459A (en) * 1989-05-18 1991-05-28 Technology Development Corporation Method and apparatus for recycling paper pulp sludge
DE4103463C2 (de) * 1991-02-06 1995-06-01 Babcock Anlagen Gmbh Verfahren zum Verbrennen von getrocknetem Klärschlamm
US5549059A (en) * 1994-08-26 1996-08-27 Minergy Corp. Converting paper mill sludge or the like
DE4443481A1 (de) * 1994-12-07 1996-06-13 Kloeckner Humboldt Deutz Ag Verfahren zur Erzeugung von in der Baustoffindustrie verwertbarer Schlacke aus Klärschlamm
DE19606640A1 (de) * 1995-02-22 1996-08-29 Roderich Mettner Vorrichtung und Verfahren zur Klärschlammverbrennung
AU8562798A (en) * 1997-08-11 1999-03-01 Ebara Corporation Method of melt disposal of combustibles
FI108960B (fi) * 1999-05-31 2002-04-30 Fortum Power & Heat Oy Menetelmä ja sovitelma vaikeasti poltettavien aineiden polttamiseksi

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2001501C2 (nl) * 2008-04-18 2009-10-20 Dhv B V Werkwijze voor het vervaardigen van energie en synthetische bouwmaterialen, zoals basalt, grind, bakstenen, tegels enzovoort en dergelijke materialen uit hoogcalorisch afval en minerale reststoffen.
CN102366756A (zh) * 2011-09-21 2012-03-07 浙江国裕资源再生利用科技有限公司 一种回收利用造纸废渣的方法
CN105556211A (zh) * 2013-06-10 2016-05-04 爱德华兹有限公司 生产气体减少
CN105556211B (zh) * 2013-06-10 2017-10-24 爱德华兹有限公司 生产气体减少的装置和方法
CN103900075A (zh) * 2014-04-09 2014-07-02 大连容大资源循环利用咨询设计有限公司 一种燃气恒温蓄热燃烧装置
CN113732022A (zh) * 2021-09-09 2021-12-03 广西北投交通养护科技集团有限公司 一种地聚物基泡沫轻质土生产用工业固体废物降解装置
CN113732022B (zh) * 2021-09-09 2023-12-22 广西北投交通养护科技集团有限公司 一种地聚物基泡沫轻质土生产用工业固体废物降解装置

Also Published As

Publication number Publication date
ATA4172002A (de) 2003-02-15
AT411019B (de) 2003-09-25
EP1347237A3 (fr) 2005-03-16

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