DE2900705A1 - Hot gas filters - made from expanded calcium aluminium silicate and sodium silicate binder - Google Patents

Hot gas filters - made from expanded calcium aluminium silicate and sodium silicate binder

Info

Publication number
DE2900705A1
DE2900705A1 DE19792900705 DE2900705A DE2900705A1 DE 2900705 A1 DE2900705 A1 DE 2900705A1 DE 19792900705 DE19792900705 DE 19792900705 DE 2900705 A DE2900705 A DE 2900705A DE 2900705 A1 DE2900705 A1 DE 2900705A1
Authority
DE
Germany
Prior art keywords
hot gas
gas filters
calcium aluminium
sodium silicate
silicate
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Withdrawn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
DE19792900705
Other languages
German (de)
Inventor
Heinz Ing Grad Gresch
Heinz Ing Grad Hoelter
Heinrich Ing Grad Igelbuescher
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.)
Industrie-Wert Beteiligungsgesellschaft MbH
Original Assignee
Industrie-Wert Beteiligungsgesellschaft MbH
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 Industrie-Wert Beteiligungsgesellschaft MbH filed Critical Industrie-Wert Beteiligungsgesellschaft MbH
Priority to DE19792900705 priority Critical patent/DE2900705A1/en
Publication of DE2900705A1 publication Critical patent/DE2900705A1/en
Withdrawn legal-status Critical Current

Links

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
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B01D46/2407—Filter candles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2068—Other inorganic materials, e.g. ceramics
    • B01D39/2072—Other inorganic materials, e.g. ceramics the material being particulate or granular
    • B01D39/2079—Other inorganic materials, e.g. ceramics the material being particulate or granular otherwise bonded, e.g. by resins

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Filtering Materials (AREA)

Abstract

Hot gas filters consist of heat-resistant expanded material, pref. calcium aluminium silicate, e.g. perlite, and an inorganic binder, e.g. sodium silicate. They are very much cheaper than stainless steel filters.

Description

Beschreibung und Erläuterung zur PatentanmeldungDescription and explanation of the patent application

'Heißgasfilterelement' Es ist bekannt, heiße Gase durch Filtergewebe, die aus hochtemperaturfestem Edelstahlgeflecht bestehen, zu reinigen.'Hot gas filter element' It is known to pass hot gases through filter cloth, which are made of high-temperature resistant stainless steel mesh.

Diese Heißgasfilter sind sehr teuer.These hot gas filters are very expensive.

Teilweise liegen die qm-Preise über 1000 DM für Temperaturen kleiner 10000 C.Sometimes the square meter prices are over 1000 DM for temperatures lower 10,000 C.

Aus diesem Grunde werden vielfach Heißgasfilter nicht eingesetzt, und Naßgasreinigungen müssen die Funktion der Gasreinigung übernehmen.For this reason, hot gas filters are often not used, and wet gas cleaning must take over the function of gas cleaning.

Bei den neuen Prozessen, insbesondere zur Kohleveredlung und Wärmerückführung, ist das Problem der Heißgasreinigung in den Vordergrund gerückt.With the new processes, especially for coal refinement and heat recovery, the problem of hot gas cleaning has come to the fore.

Um eine wirtschaftliche Lösung zu finden, wird erfindungsgemäß vorgeschlagen, Heißgasfilterelemente wie folgt herzustellen.In order to find an economical solution, it is proposed according to the invention that Manufacture hot gas filter elements as follows.

Die Heißgasfilterelemente werden vorzugsweise als runde Rohrkörper entsprechend der beiliegenden Zeichnung hergestellt.The hot gas filter elements are preferably made as round tubular bodies manufactured according to the accompanying drawing.

In der beiliegenden Zeichnung ist dargestellt; mit 1 das staubhaltige, heiße Gas mit 2 der abfallende Staub mit 3 das Reingas, das durch den rohrförmigen Körper gesaugt oder gedrückt wurde und gereinigt dem Verwendungszweck zufließt Das filterende Material besteht erfindungsgemän aus geblähten, hochtemperaturfesten Stoffen, vorzugsweise Calciumaluminiumsilikat, wie z. B. Perlite, die mit anorganischen Klebern zu filternden Körpern geformt werden.In the accompanying drawing is shown; with 1 the dusty, hot gas with 2 the falling dust with 3 the clean gas passing through the tubular The body was sucked or squeezed and cleaned for the intended purpose According to the invention, filtering material consists of expanded, high-temperature-resistant material Substances, preferably calcium aluminum silicate, such as. B. Perlite with inorganic Glues can be molded into bodies to be filtered.

Als anorganische Kleber könnten z. B. vorzugsweise Wasserglas oder ähnliche Bindemittel Anwendung finden.As an inorganic adhesive, for. B. preferably water glass or similar binders are used.

Die Reinigung der Filterkörper, die aus den vorgenannten Stoffen bestehen, könnte durch Rückspülunq oder Druckschock-Gasspülung vorgenommen werden.The cleaning of the filter bodies, which consist of the aforementioned substances, could be done by backwashing or pressure shock gas purging.

Selbstverständlich ist die Erfindung nicht auf die vorstehend im einzelnen beschriebene und dargestellte Ausbildungsform beschränkt, sondern es sind zahlreiche Abänderungen möglich, ohne jedoch von dem Grundgedanken abzuweichen, Heißgasfilterelemente so herzustellen, daß sie aus geblähten, hochtemperaturfesten Stoffen bestehen, vorzugsweise Calciumaluminiumsilikat, das aus temperaturbeständigen Klebern, wie anorganischen Klebern, z. B.Of course, the invention is not limited to the above in detail described and illustrated form of training limited, but there are numerous Changes possible without deviating from the basic idea, hot gas filter elements Manufacture so that they consist of expanded, high temperature resistant materials, preferably Calcium aluminum silicate, which is made from temperature-resistant adhesives, such as inorganic Adhesives, e.g. B.

Wasserglas, zu staubabscheidenden Platten und/oder Formkörpern hergestellt wird.Water glass, plates and / or molded bodies to be dust-separated will.

Patentanspruch Claim

Claims (1)

Patentanspruch.Claim. Anspruch 1 Heißgasfiltereletnent dadurch gekennzeichnet, daß es aus temperaturbeständigen, geblähten Stoffen besteht, vorzuqsweise Calciumaluminiumsilikaten, wie Perlite, die mit anorganischen Klebern, z. B. Wasserglas, oberflächenverbunden zu Filterkörperelementen geformt sind.Claim 1 hot gas filter element characterized in that it consists of temperature-resistant, expanded materials, preferably calcium aluminum silicates, such as perlite, which with inorganic adhesives, z. B. water glass, surface-bonded are formed into filter body elements.
DE19792900705 1979-01-10 1979-01-10 Hot gas filters - made from expanded calcium aluminium silicate and sodium silicate binder Withdrawn DE2900705A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19792900705 DE2900705A1 (en) 1979-01-10 1979-01-10 Hot gas filters - made from expanded calcium aluminium silicate and sodium silicate binder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792900705 DE2900705A1 (en) 1979-01-10 1979-01-10 Hot gas filters - made from expanded calcium aluminium silicate and sodium silicate binder

Publications (1)

Publication Number Publication Date
DE2900705A1 true DE2900705A1 (en) 1980-07-24

Family

ID=6060278

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792900705 Withdrawn DE2900705A1 (en) 1979-01-10 1979-01-10 Hot gas filters - made from expanded calcium aluminium silicate and sodium silicate binder

Country Status (1)

Country Link
DE (1) DE2900705A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0036321B1 (en) * 1980-03-15 1984-06-27 Ngk Insulators, Ltd. Ceramic filter
DE3529272A1 (en) * 1985-08-16 1987-02-19 Bergwerksverband Gmbh METHOD FOR SEPARATING SOLID AND GASEOUS POLLUTANTS FROM HOT GASES

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0036321B1 (en) * 1980-03-15 1984-06-27 Ngk Insulators, Ltd. Ceramic filter
DE3529272A1 (en) * 1985-08-16 1987-02-19 Bergwerksverband Gmbh METHOD FOR SEPARATING SOLID AND GASEOUS POLLUTANTS FROM HOT GASES
US4764355A (en) * 1985-08-16 1988-08-16 Bergwerksverband Gmbh Process for removal of solid and gaseous noxious matter from hot gases

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Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee