EP0347519A2 - Procédé pour l'élimination des matières résiduaires qui résultent de la récupération des vieux papiers dans l'industrie du papier et du carton - Google Patents

Procédé pour l'élimination des matières résiduaires qui résultent de la récupération des vieux papiers dans l'industrie du papier et du carton Download PDF

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Publication number
EP0347519A2
EP0347519A2 EP89102100A EP89102100A EP0347519A2 EP 0347519 A2 EP0347519 A2 EP 0347519A2 EP 89102100 A EP89102100 A EP 89102100A EP 89102100 A EP89102100 A EP 89102100A EP 0347519 A2 EP0347519 A2 EP 0347519A2
Authority
EP
European Patent Office
Prior art keywords
combustion
materials
capture
dried
dewatered
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.)
Granted
Application number
EP89102100A
Other languages
German (de)
English (en)
Other versions
EP0347519B1 (fr
EP0347519A3 (fr
Inventor
Norbert Dipl.-Ing. Srowig
Gerhard Dipl.-Ing. Golkowski
Wilhelm Dipl.-Ing. Lutterbach
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.)
Oschatz GmbH
Original Assignee
Oschatz 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 Oschatz GmbH filed Critical Oschatz GmbH
Priority to AT89102100T priority Critical patent/ATE99400T1/de
Publication of EP0347519A2 publication Critical patent/EP0347519A2/fr
Publication of EP0347519A3 publication Critical patent/EP0347519A3/fr
Application granted granted Critical
Publication of EP0347519B1 publication Critical patent/EP0347519B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/002—Incineration of waste; Incinerator constructions; Details, accessories or control therefor characterised by their grates
    • 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
    • F23G5/008—Incineration of waste; Incinerator constructions; Details, accessories or control therefor adapted for burning two or more kinds, e.g. liquid and solid, of waste being fed through separate inlets
    • 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
    • F23G2203/00—Furnace arrangements
    • F23G2203/107—Furnace arrangements with vibrating grate
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00—Specific waste
    • F23G2209/22—Waste papers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00—Specific waste
    • F23G2209/28—Plastics or rubber like materials

Definitions

  • the invention relates to a method and a device for removing trapping and residual materials occurring in the paper and cardboard industry during the recycling of waste paper, the trapping materials being dewatered.
  • the raw material i.e. H. the paper fiber damaged.
  • a paper fiber can be reused four to six times before it breaks.
  • the resulting pieces of fiber accumulate in the production water and are collected via flotation plants.
  • the concentrate mainly consists of wood and cellulose fibers, which are called capture materials.
  • the residues consist of more than 95% by weight of plastic in the form of adhesive tapes, foils, etc., which are separated directly from the recycling process and are usually taken to the capture materials independently.
  • residual substances are also understood to mean what is known as a “reject”.
  • the trapping materials have only been dewatered mechanically to a dry content of about 35% and then sent to a landfill.
  • the residues were also deposited independently of this. Taking into account that about 10% of the waste paper used is in the form of catch and residues, whereby the weight ratio of catch materials to residues is about 9: 1, and for ecological reasons an increased use of waste paper is required and on the other hand the available landfill capacities scarce per, it becomes immediately clear that other ways of removing the catch and residues must be found.
  • the invention has for its object to find measures for eliminating the catch and residues that are no longer burdened by disposal or landfill problems.
  • the invention teaches from a procedural point of view that the pre-dewatered capture materials are dried to a residual water content of 25% by weight, based on the amount of capture material, and then continuously layered, covered with the residual materials and burned with underwind to form slag .
  • the invention is based on the knowledge that the pre-dewatered capture materials after further drying without further ado. H. can be burned with the residual materials without primary energy if the combustion takes place in the form of a stratification, the lower layer being formed by the catching materials and the upper layer being formed by the residual materials.
  • the resulting slag can be used for other purposes, in any case it does not represent a landfill problem anymore.
  • the combustion gases formed during the combustion of the trapping and residual materials are subjected to heat recovery, in particular used for generating steam; here the resulting heat of combustion is used. It is recommended to remove the pre-dewatered capture materials except for some residual water content of 20% by weight, based on the amount of trapping material; then the process is not as sensitive to the combustion of the residues.
  • the water vapor generated can be used in papermaking, but it is also possible, as in the preferred embodiment, to pre-dry the pre-dewatered capture materials by heating with at least some of the water vapor generated.
  • the pre-dewatered capture materials can also be dried with at least some of the combustion gases generated during the combustion of the capture and residual materials.
  • the dried and layered capture materials can be covered with up to 100% by weight of residual materials, based on the amount of solids, and fed to the combustion; optimal conditions are, however, provided that the dried and layered capture materials are covered with a maximum of 15% by weight of residual materials, based on the amount of solids, and fed to the incineration.
  • the combustion gases are expediently subjected to dedusting.
  • this slag can easily be used as a building material, so that there are no more landfill problems at all.
  • the invention also relates to an apparatus for performing this method; this is characterized accordingly by a combustion furnace with an inclined vibrating grate and underwind feed, with one arranged above the upper grate end, via a transport device with a dryer for the pre-dewater Ten dosing materials connected feed dosing device for the dried catching materials, with the feeding dosing device for the residues arranged next to or in the direction of the grating, looking down behind the feeding dosing device for the catching materials and with a slag collector provided under the rocking grate.
  • the invention makes use of the knowledge that an inclined vibrating grate allows the stratified trapping and residues to be burned properly without the residues layer mixing with the trapping material layer and clogging the vibrating grate in the course of the combustion.
  • the combustion furnace is preferably followed by a heat recovery unit, in particular a steam generator.
  • This can be connected to the dryer.
  • the incinerator should be provided with a combustion gas branch line leading to the dryer, as seen in the flow direction of the combustion gases, in order to be able to use the heat that is still inherent in the combustion gases to dry the capture materials.
  • the dryer should then be connected with its exhaust outlet to a post-combustion chamber of the incinerator. Any fly ash outlets are to be connected to the incinerator so that the fly ash is integrated into the slag and does not require separate disposal.
  • the fly ash outlets in the slag area of the vibrating grate preferably open into the incinerator.
  • the only drawing figure schematically shows a device for removing trapping materials on the one hand and residual materials on the other hand, as they occur in the paper and cardboard industry in the recycling of waste paper.
  • the capture materials are pre-dewatered in the usual form.
  • a combustion furnace 1 with an inclined vibrating grate 2 and underwind feed 3 can be seen in the main.
  • a feed metering device 4 for the capture materials which is connected via a transport device 5 to a dryer 6 for the pre-dewatered capture materials.
  • a further feed metering device 7 is provided for the residual materials behind the feed metering device 5, which are fed in without further processing.
  • a slag collector 8 can be seen under the vibrating grate 2.
  • a heat recovery unit in the form of a steam generator 9 is connected downstream of the combustion furnace 1 in the flow direction of the combustion gases. This is connected to the dryer 6 via a schematically indicated line 10.
  • the combustion furnace 1 seen in the flow direction of the combustion gases, is provided behind the vibrating grate 2 with a combustion gas branch line 11 led to the dryer 6 and the dryer 6 is connected with its exhaust air outlet to a post-combustion chamber 12 of the combustion furnace.
  • This post-combustion chamber 12 can be provided with secondary air feeds, not shown, to reduce the CO content of the combustion gases and to support post-combustion.
  • the steam generator 9 is followed by a conventional dry dedusting unit 13 and a chimney 14.
  • the dry dedusting unit 13 and the steam generator 9 each have a fly ash outlet 15 and 16, respectively, which are connected to the combustion furnace 1 via a line 17.
  • the line 17 opens into the slag area of the vibrating grate 2 in the incinerator 1.
  • the fly ash returned to this extent is thus supplied with secondary air in the area of the slag zone and integrated into the slag.
  • the mode of operation of the device described can easily be seen in the figure.
  • the pre-dewatered capture materials are dried in the dryer 6 to a residual water content of 25% by weight, in particular 20% by weight, based on the amount of solids.
  • This drying can be dried by heating with at least a part of the water vapor generated and / or with at least a part of the combustion gases generated during the combustion of the capture and residual materials.
  • the exhaust air generated in the latter case is then subjected to post-combustion together with the combustion gases in the post-combustion chamber 12.
  • the dried capture materials are continuously applied to the vibrating grate 2 in layers.
  • the residues are covered with a layer, and the whole is then incinerated with the formation of slag.
  • the fly ash from the dry dedusting is added to this slag.
  • the wet slag is used in the construction industry.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Paper (AREA)
  • Processing Of Solid Wastes (AREA)
EP89102100A 1988-06-24 1989-02-08 Procédé pour l'élimination des matières résiduaires qui résultent de la récupération des vieux papiers dans l'industrie du papier et du carton Expired - Lifetime EP0347519B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89102100T ATE99400T1 (de) 1988-06-24 1989-02-08 Verfahren zum beseitigen von in der papier- und kartonindustrie beim altpapierrecycling anfallenden fang- und reststoffen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3821318 1988-06-24
DE3821318 1988-06-24

Publications (3)

Publication Number Publication Date
EP0347519A2 true EP0347519A2 (fr) 1989-12-27
EP0347519A3 EP0347519A3 (fr) 1991-06-12
EP0347519B1 EP0347519B1 (fr) 1993-12-29

Family

ID=6357150

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89102100A Expired - Lifetime EP0347519B1 (fr) 1988-06-24 1989-02-08 Procédé pour l'élimination des matières résiduaires qui résultent de la récupération des vieux papiers dans l'industrie du papier et du carton

Country Status (3)

Country Link
EP (1) EP0347519B1 (fr)
AT (1) ATE99400T1 (fr)
DE (2) DE58906529D1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0610152A3 (en) * 1993-02-05 1994-09-21 De Menezes Junior Antoni Teles Waste incinerator.
EP0627597A1 (fr) * 1993-06-03 1994-12-07 Oschatz Gmbh Procédé pour la combustion des matières résiduaires qui résultent de la production de papier
DE4337420A1 (de) * 1993-06-03 1994-12-08 Oschatz Gmbh Verfahren zum Verbrennen von Fangstoffen aus der Papiererzeugung
CN105465799A (zh) * 2016-01-01 2016-04-06 广州环峰能源科技股份有限公司 一种药渣生物质燃料混烧锅炉

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH424058A (de) * 1965-05-26 1966-11-15 Ulrich Reusser Peter Verfahren zum Verbrennen von Schlamm
US3573202A (en) * 1970-03-05 1971-03-30 Fort Howard Paper Co Process for reduction of water pollution due to domestic and industrial wastes
FR2123635A5 (fr) * 1971-01-26 1972-09-15 Socea

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0610152A3 (en) * 1993-02-05 1994-09-21 De Menezes Junior Antoni Teles Waste incinerator.
EP0627597A1 (fr) * 1993-06-03 1994-12-07 Oschatz Gmbh Procédé pour la combustion des matières résiduaires qui résultent de la production de papier
DE4337420A1 (de) * 1993-06-03 1994-12-08 Oschatz Gmbh Verfahren zum Verbrennen von Fangstoffen aus der Papiererzeugung
CN105465799A (zh) * 2016-01-01 2016-04-06 广州环峰能源科技股份有限公司 一种药渣生物质燃料混烧锅炉

Also Published As

Publication number Publication date
EP0347519B1 (fr) 1993-12-29
DE58906529D1 (de) 1994-02-10
DE8915578U1 (de) 1990-11-08
ATE99400T1 (de) 1994-01-15
EP0347519A3 (fr) 1991-06-12

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