DE3114068A1 - Process for purifying high-temperature and high-pressure gases - Google Patents

Process for purifying high-temperature and high-pressure gases

Info

Publication number
DE3114068A1
DE3114068A1 DE19813114068 DE3114068A DE3114068A1 DE 3114068 A1 DE3114068 A1 DE 3114068A1 DE 19813114068 DE19813114068 DE 19813114068 DE 3114068 A DE3114068 A DE 3114068A DE 3114068 A1 DE3114068 A1 DE 3114068A1
Authority
DE
Germany
Prior art keywords
gas
filter
cleaning
cleaned
pressure
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Withdrawn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
DE19813114068
Other languages
German (de)
Inventor
Heribert Ing.(grad.) 4390 Gladbeck Dewert
Heinrich Ing.(grad.) 4600 Dortmund Gresch
Heinz Ing.(grad.) Hölter
Heinrich Ing.(grad.) 4390 Gladbeck Igelbüscher
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19813114068 priority Critical patent/DE3114068A1/en
Publication of DE3114068A1 publication Critical patent/DE3114068A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B01D46/04—Cleaning filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/66—Regeneration of the filtering material or filter elements inside the filter
    • B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/66—Regeneration of the filtering material or filter elements inside the filter
    • B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
    • B01D46/71—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/90—Devices for taking out of action one or more units of multi-unit filters, e.g. for regeneration or maintenance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
    • B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2273/00—Operation of filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2273/20—High temperature filtration

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

The invention relates to a process and an apparatus for the filtering gas purification of preferably process gases and flue gases at high gas pressure and high temperature, in particular for dust fractions in the 0.1 mu region. The object is carrying out the filter cleaning, which becomes necessary from time to time, in particular from the very fine dusts, in a comparatively short time. According to the invention this is achieved in that the high performance filter to be cleaned is separated from the gas stream and loaded by pressure pulse and flushing air for cleaning the filter surfaces, the process gas simultaneously serving to drive an injector (5), and this injector continuously feeds the dusty medium cleaned off to a preseparator (6) and preferably a downstream filter separator (7), the propellant gas quantity (5) being taken off from the process gas via the filter (7) and the compressor (8), compressed and simultaneously used for flushing (9) and/or (10 and 4) for simultaneous compressed gas pulsing and flushing, and the cleaning process flowing continuously through the gas pressure elevation apparatus (8) to avoid blockages until final cleaning of the main filter (1). <IMAGE>

Description

Beschreibung und Erläuterung zur PatentanmeldungDescription and explanation of the patent application

"Verfahren zur Reinigung von Gasen mit hoher Temperatur und hohen Drücken Es ist bekannt, Heißgasfilter mit hohem Durck zu beaufschlagen."Process for the purification of gases with high temperature and high Pressing It is known to apply high pressure to hot gas filters.

Die Schwierigkeit ist, die Filter in sehr kurzer Zeit zu reinigen, wenn insbesondere feinste Stäube von um lEm abgereinigt werden müssen, wobei zum Beispiel das spezifische Gewicht eines solchen Staubes bei ca. 1,5 liegt und das Gas selber bei sehr hohem Druck eine spezifische Wichte von z.B. 15 - 20 kp/m3 besitzt.The difficulty is to clean the filters in a very short time, if in particular the finest dusts have to be cleaned off by lEm, with the Example the specific gravity of such a dust is around 1.5 and that Gas itself has a specific gravity of e.g. 15-20 kp / m3 at very high pressure.

Bisher mußten diese Filter aus dem Gasstrom abgeschaltet und durch Druckschock, z.B. über Inertgas, gereinigt werden. Eine relativ lange Verweilzeit war notwendig, um das Absinken der Feinststäube in dem abgeschalteten Filter zu ermöglichen und sie über den Staubaustrag auszutragen.Previously, these filters had to be switched off from the gas flow and passed through Pressure shock, e.g. using inert gas. A relatively long dwell time was necessary to prevent the particulate matter from sinking into the switched-off filter enable and discharge them via the dust discharge.

Erfindungsgemäß wird vorgeschlagen, die Spülzeit des Filters auf ein Minimum zu begrenzen.According to the invention it is proposed that the flushing time of the filter be reduced to one Limit minimum.

Diese wird erfindungsgemäß durch folgendes Verfahren ermöglicht.According to the invention, this is made possible by the following method.

In der beiliegenden Zeichnung ist dargestellt mit (1) ein Filter mit (2) der Rohgaseintritt mit (3) der Reingasaustritt mit (4) die Abreinigungsvorrichtung, z.B. Druckschocksystem mit (5) der Gasstrahl-Antrieb mit (6) der Zyklon mit (7) ein nachgeschalteter, kleiner Staubabsaugfilter mit (8) Gasdruckerhöhung für das Spülgas (9) und (lo), welches zum Leerspülen des Filters (1) vorgesehen ist.In the accompanying drawing, (1) shows a filter with (2) the raw gas inlet with (3) the clean gas outlet with (4) the cleaning device, e.g. pressure shock system with (5) the gas jet drive with (6) the cyclone with (7) a downstream, small dust extraction filter with (8) gas pressure increase for the Purge gas (9) and (lo), which is provided for flushing the filter (1).

Arbeitsweise des erfindungsgemäßen Verfahrens: Das Rohgas, welches bei (2) in den Filter eintritt, wird solange durch den Filter gereinigt, bis daß sich der max. zulässige Widerstand im Filter eingestellt hat.Operation of the method according to the invention: The raw gas, which at (2) enters the filter, the filter is cleaned until that the maximum permissible resistance in the filter has been set.

Bei Erreichen dieses max. Widerstandes wird das Rohgas auf einen oder mehrere Parallelfilter umgeschaltet, und der genannte Filter (1) wird aus dem Rohgasstrom abgeschaltet.When this maximum resistance is reached, the raw gas is switched to an or several parallel filters are switched over, and said filter (1) is made from the raw gas flow switched off.

In diesem Moment wird über dem Injektor (5) ein Sog in dem Filter (1) erzeugt, der dazu dient, daß die Abreinigung durch Druckschock (4) und Spülgas (9) und (lo) saugseitig erfaßt wird, um dieses beschleunigte, abgereinigte Staubmedium einem Zyklon (6) und/oder nachgeschalteten Filter (7) zuzuführen.At this moment there is suction in the filter via the injector (5) (1) generated, which serves that the cleaning by pressure shock (4) and purge gas (9) and (lo) is detected on the suction side to this accelerated, cleaned dust medium a cyclone (6) and / or downstream filter (7).

Der Staub ist durch die Vorrichtung Filter (1) agglomeriert und wird sich zum sehr großen Teil im Zyklon (6) bereits abscheiden, so daß die Belastung im Filter (7) relativ gering ist. Der Filter (7) wird über Druckschock oder über ein ähnlich arbeitendes Filterreinigungs-System gereinigt.The dust is agglomerated through the device filter (1) and becomes to a very large extent already deposit in the cyclone (6), so that the load in the filter (7) is relatively low. The filter (7) is via pressure shock or via a similarly working filter cleaning system cleaned.

über (8) wird das Gas aus dem Filter (7) angesaugt und druckseitig, wunschgerecht für das Ausblasen über (9) und (lo), im Filter (1) fähig gestaltet.The gas is sucked in from the filter (7) via (8) and on the pressure side, as desired for blowing out through (9) and (lo), designed to be capable in the filter (1).

Durch diese erfindungsgemäße Verfahrensanordnung und Vorrichtung zur Durchführung des Verfahrens ist es möglich, Prozessgas in sehr kurzer Zeit zu reinigen.By this inventive method arrangement and device for Carrying out the process, it is possible to purify process gas in a very short time.

Die bekannten Filter des Entstaubers mit sogenannter Jet-oder Strahl- Paratabreinigung sind diesem System im Zeitablauf wesentlich unterlegen.The well-known filters of the dust extractor with so-called jet or jet Parate cleaning are significantly inferior to this system over time.

Selbstverständlich ist die Erfindung nicht auf die vorstehend im einzelnen dargestellten und beschriebenen Ausbildungsformen beschränkt, sondern es sind zahlreiche Abänderungen möglich, ohne jedoch von dem Grundgedanken abzuweichen, vorzugsweise Prozessgase, die unter hohem Druck und mit hoher Temperatur Abscheider beaufschlagen und die gereinigt werden sollen, in die Filter zu führen, die für die Reinigung vom Gasstrom abgetrennt sind und durch Unterdruckerzeuger im Innenraum schnellstmöglich evakuiert werden und der evakuierte Staub, konzentriert und voragglomeriert, in einem nachgeschalteten Abscheidesystem, vorzugsweise bestehend aus zweistufiger Abscheidung a) Zyklon und b) Filter gereinigt wird und die Prozessgase selber die Vorrichtungen zum Evakuieren und Schocken bedienen, wobei vorzugsweise über ein Druckerhöhungsgebläse die notwendige Prozeßsteuerung des erfindungsgemäßen Verfahrens geschaffen wird, wobei weiterhin im erfindungsgemäßen Verfahren zugrunde liegt, daß ein kontinuierlicher Spülgasumlauf vorgesehen ist, um Propfenbildung zu vermeiden.Of course, the invention is not limited to the above in detail Forms of training shown and described are limited, but there are numerous Modifications are possible without, however, deviating from the basic idea, preferably Process gases which act on separators under high pressure and at high temperature and that are to be cleaned, lead into the filters that are used for cleaning are separated from the gas flow and as quickly as possible by vacuum generators in the interior be evacuated and the evacuated dust, concentrated and pre-agglomerated, in a downstream separation system, preferably consisting of two-stage Separation a) cyclone and b) filter is cleaned and the process gases themselves Operate devices for evacuation and shock, preferably via a The pressure booster fan provides the necessary process control of the invention Method is created, with the method according to the invention still being based lies that a continuous purge gas circulation is provided to plug formation to avoid.

Patentanspruch : Claim:

Claims (1)

Paten#tan#spruch An#spruch 1 Verfahren und Vorrichtung zur filternden Gasreinigung von vorzugsweise Pttessgasen und Rauchgasen bei hohem Gasdruck und hoher Temperatur und vorzugsweise für Staubfraktion im Bereich um o,l ptK,dadurch gekennzeichnet, daß der zu reinigende Hochleistungsfilter aus dem Gasstrom getrennt wird und mittels Druckschock und Spülluft zur Reinigung der Filterflächen beschickt wird, wobei das Prozeßgas gleichzeitig zum Antrieb eines Injektors (5) dient, und dieser Injektor kontinuierlich das abgereinigte, staubförmige Medium einem Vorabscheider (6) und vorzugsweise nachgeschalteten Filterabscheider (7) zuführt, wobei die Treibstrahlgasmenge (5) auf dem Prozeßgas, über den Filter (7) und den Verdichter (8) angenommen, verdichtet und gleichzeitig zur Spülung (9) und/oder (lo) und (4) zur gleichzeitigen Druckgasschockung und Spülung Anwendung findet, und der Reinigungsprozeß kontinuierlich, zur Vermeidung von Verstopfungen durch die Gasdruckerhöhungsvorrichtung (8) ständig fließt bis zur endgültigen Reinigung des Hauptfilters (1).Patent # tan # claim Claim 1 Method and device for filtering Gas cleaning of preferably pttess gases and flue gases at high gas pressure and high temperature and preferably for dust fraction in the range around 0.1 ptK, thereby characterized in that the high-performance filter to be cleaned is separated from the gas stream is charged with pressure shock and purge air to clean the filter surfaces is, wherein the process gas is used at the same time to drive an injector (5), and This injector continuously transfers the cleaned, dusty medium to a pre-separator (6) and preferably downstream filter separator (7), the propellant jet gas quantity (5) on the process gas, assumed via the filter (7) and the compressor (8), compressed and at the same time for purging (9) and / or (lo) and (4) for simultaneous pressure gas shock and rinsing is used, and the cleaning process is continuous to avoid it of blockages through the gas pressure increasing device (8) constantly flows until for final cleaning of the main filter (1).
DE19813114068 1981-04-08 1981-04-08 Process for purifying high-temperature and high-pressure gases Withdrawn DE3114068A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19813114068 DE3114068A1 (en) 1981-04-08 1981-04-08 Process for purifying high-temperature and high-pressure gases

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813114068 DE3114068A1 (en) 1981-04-08 1981-04-08 Process for purifying high-temperature and high-pressure gases

Publications (1)

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DE3114068A1 true DE3114068A1 (en) 1982-11-04

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3611700A1 (en) * 1986-04-08 1987-10-15 Hoelter Heinz Process for cleaning off a hot gas filter
US4909814A (en) * 1988-08-18 1990-03-20 Sisk David E Dust filtering and collection system
US5053063A (en) * 1988-08-18 1991-10-01 Sisk David E Dust filtering and collection system
EP0554886A2 (en) * 1992-02-05 1993-08-11 Asahi Glass Company Ltd. A filtering method of flue gas of a boiler and a filter apparatus for hot gas
EP0774289A1 (en) * 1995-11-20 1997-05-21 Kvaerner Bison GmbH Filter installation and use thereof
WO2007041955A1 (en) * 2005-10-11 2007-04-19 Zimmer, Sebastian A cleaning process for filtration material of gas filter
WO2010046210A1 (en) * 2008-10-23 2010-04-29 Siemens Vai Metals Technologies Gmbh & Co Method and device for separating particulate solids from a gas flow
CN102961945A (en) * 2012-11-29 2013-03-13 中南大学 System with integrated functions of high-temperature flue gas dedusting, desulfurization and denitrification
CN103002967A (en) * 2010-07-20 2013-03-27 西门子Vai金属科技有限责任公司 Method for cleaning a gas flow loaded with dust
DE102013011758A1 (en) * 2013-07-13 2015-01-15 Gerhard Kemper Device for extracting and filtering fine dust polluted air
CN105642055A (en) * 2015-05-09 2016-06-08 刘国义 High efficient multifunctional cleaning-free gas pollution purifying and separating device
WO2017076392A1 (en) * 2015-11-02 2017-05-11 Esta Apparatebau Gmbh & Co. Kg Dust removal system
CN109011869A (en) * 2018-08-10 2018-12-18 徐明杰 A kind of enviroment protective ceramic grain bed for high temperature fume dust removal

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3611700A1 (en) * 1986-04-08 1987-10-15 Hoelter Heinz Process for cleaning off a hot gas filter
US4909814A (en) * 1988-08-18 1990-03-20 Sisk David E Dust filtering and collection system
US5053063A (en) * 1988-08-18 1991-10-01 Sisk David E Dust filtering and collection system
EP0554886A2 (en) * 1992-02-05 1993-08-11 Asahi Glass Company Ltd. A filtering method of flue gas of a boiler and a filter apparatus for hot gas
EP0554886A3 (en) * 1992-02-05 1993-10-20 Asahi Glass Co Ltd A filtering method of flue gas of a boiler and a filter apparatus for hot gas
US5348568A (en) * 1992-02-05 1994-09-20 Asahi Glass Company Ltd. Filtering method of flue gas of a boiler and a filter apparatus for hot gas
EP0754486A2 (en) * 1992-02-05 1997-01-22 Asahi Glass Company Ltd. A filtering method of flue gas of a boiler and a filter apparatus for hot gas
EP0754486A3 (en) * 1992-02-05 1997-09-24 Asahi Glass Co Ltd A filtering method of flue gas of a boiler and a filter apparatus for hot gas
EP0774289A1 (en) * 1995-11-20 1997-05-21 Kvaerner Bison GmbH Filter installation and use thereof
EP1951405A1 (en) * 2005-10-11 2008-08-06 Zimmer, Sebastian A cleaning process for filtration material of gas filter
WO2007041955A1 (en) * 2005-10-11 2007-04-19 Zimmer, Sebastian A cleaning process for filtration material of gas filter
EP1951405A4 (en) * 2005-10-11 2009-09-23 Sebastian Zimmer A cleaning process for filtration material of gas filter
AU2006301780B2 (en) * 2005-10-11 2010-12-16 Sebastian Zimmer A cleaning process for filtration material of gas filter
US8021467B2 (en) 2005-10-11 2011-09-20 Sebastian Zimmer Cleaning process for cleaning filtration material of a gas filter and a device for carrying out the process
WO2010046210A1 (en) * 2008-10-23 2010-04-29 Siemens Vai Metals Technologies Gmbh & Co Method and device for separating particulate solids from a gas flow
CN103002967A (en) * 2010-07-20 2013-03-27 西门子Vai金属科技有限责任公司 Method for cleaning a gas flow loaded with dust
US8882893B2 (en) 2010-07-20 2014-11-11 Siemens Vai Metals Technologies Gmbh Method for cleaning a gas flow loaded with dust
CN103002967B (en) * 2010-07-20 2016-01-20 首要金属科技奥地利有限责任公司 The purification method of dust-containing air stream
CN102961945A (en) * 2012-11-29 2013-03-13 中南大学 System with integrated functions of high-temperature flue gas dedusting, desulfurization and denitrification
DE102013011758A1 (en) * 2013-07-13 2015-01-15 Gerhard Kemper Device for extracting and filtering fine dust polluted air
CN105642055A (en) * 2015-05-09 2016-06-08 刘国义 High efficient multifunctional cleaning-free gas pollution purifying and separating device
WO2017076392A1 (en) * 2015-11-02 2017-05-11 Esta Apparatebau Gmbh & Co. Kg Dust removal system
CN109011869A (en) * 2018-08-10 2018-12-18 徐明杰 A kind of enviroment protective ceramic grain bed for high temperature fume dust removal

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