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DE845495C - Electrostatic precipitator for aggressive gases or liquids - Google Patents

Electrostatic precipitator for aggressive gases or liquids

Info

Publication number
DE845495C
DE845495C DES5494D DES0005494D DE845495C DE 845495 C DE845495 C DE 845495C DE S5494 D DES5494 D DE S5494D DE S0005494 D DES0005494 D DE S0005494D DE 845495 C DE845495 C DE 845495C
Authority
DE
Germany
Prior art keywords
glass
electrostatic precipitator
liquids
strips
glass plates
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.)
Expired
Application number
DES5494D
Other languages
German (de)
Inventor
Georg Weindel
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.)
GEA Group AG
Original Assignee
Metallgesellschaft AG
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 Metallgesellschaft AG filed Critical Metallgesellschaft AG
Priority to DES5494D priority Critical patent/DE845495C/en
Application granted granted Critical
Publication of DE845495C publication Critical patent/DE845495C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03CMAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34Constructional details or accessories or operation thereof
    • B03C3/40Electrode constructions
    • B03C3/60Use of special materials other than liquids
    • B03C3/62Use of special materials other than liquids ceramics
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03CMAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34Constructional details or accessories or operation thereof
    • B03C3/40Electrode constructions
    • B03C3/60Use of special materials other than liquids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Filtering Materials (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Electrostatic Separation (AREA)

Description

Elektrofilter für aggressive Gase oder Flüssigkeiten lin Elektrofilterbau ist die Verwendung von Glas als Baustoff bekannt. So hat man z. B. schon vorgeschlafen, die Hochspannung führenden Elektroden niit Glas zu umkleiden oder in Glas einzubetten. Dies geschah u. a. durch Aufreihung von Glasperlen auf einen Elektrodendralit oder Einschmelzung einer metallischen mit der Spannungsquelle verbundenen Einlage in eine Glasplatte. In gleicher Richtung liegt ein anderer bekannter Vorschlag, der die Umkleidung eines Elektrodendrahtes mit einem Glasfiuß (Email) vorsah. Diese llaßnalimen -zielten auf eine Verbesserung des Wirkungsgrades durch Vergleiclimäßigung der Elektronenemission ab.Electrostatic precipitators for aggressive gases or liquids in the construction of electrostatic precipitators the use of glass as a building material is known. So one has z. B. already slept, the high-voltage electrodes must be encased in glass or embedded in glass. This happened inter alia. by stringing glass beads on an electrode dendralite or Melting of a metallic insert connected to the voltage source in a glass plate. Another well-known proposal, the the covering of an electrode wire with a glass base (enamel) provided. These The aim was to improve the efficiency through comparison the electron emission.

Man hat ferner schon Schaugeräte auf Ausstellungen gezeigt, bei denen die als Niederschlagsflächen <licnendin Wände einer Elektrofilterkannner aus Glas bestanden, um die Wirkungsweise der elektrischen Abscheidung, beispielsweise von Tabakrauch oder künstlich erzeugten Nebeln. sichtbar zu machen.Furthermore, display devices have already been shown at exhibitions where The walls of an electrostatic precipitator can be used as precipitation surfaces Glass passed to the action of electrical deposition, for example from tobacco smoke or man-made mist. to make visible.

Bei dein Elektrofilter nach der Erfindung wird ebenfalls von Glas als Baustoff Gebrauch gemacht, aber im Gegensatz zu den vorgenannten älteren Vorbildern in Beschränkung auf solche Elektrofilter, in denen aggressive Gase behandelt oder aggressive Flüssigkeiten, wie insbesondere Schwefelsäure, ent-\\-eder aus dem Gas abgeschieden oder zur Berieselung des Gases oder der Niederschlagselektroden leerangezogen werden. In diesen Fällen war man bisher gezwungen, die dem Angriff des Gases oder der Saure ausgesetzten metallischen Teile des Elektrofilters, vor allem die Niederschlagselektroden, mit einem Säureschutz aus Blei oder Kunststoff zu verkleiden bzw. aus Blei herzustellen. Hier schlägt nun die Erfindung vor, für die Niederschlagselektroden und gegebenenfalls auch die Gehäusewände der Elektrofilterkammer statt Bleiplatten, verbleiten Blechen od. dgl. Glasplatten zu verwenden. Es handelt sich also bei der Erfindung ausschließlich um Elektrofilter für einen bestimmten Zweck und im Zusammenhang hiermit um die Ersparung des bisher für dieses Zweckgebiet notwendigen Bleimetalls. Damit unterscheidet sich die Erfindung grundsätzlich von den bekannten Glasbekleidungen der Hochspannungselektroden und den Schaugeräten, denn sie verfolgt weder elektrophysikalische noch schautechnisch belehrende Ziele, dient vielmehr einem wirtschaftlich äußerst bedeutsamen Zweck, nämlich dem, Elektrofilter der hier in Betracht kommenden Sonderart von Blei oder anderen zum Korrosions-bzw. Säureschutz bestimmten Werkstoffen, zumeist polymeren Kunststoffen, unabhängig zu machen.Your electrostatic precipitator according to the invention is also made of glass used as a building material, but in contrast to the older models mentioned above limited to those electrostatic precipitators in which aggressive gases are treated or aggressive liquids, such as sulfuric acid in particular, or from the gas deposited or drawn empty for sprinkling the gas or the collecting electrodes will. In these cases one was previously forced to the attack of the gas or metallic parts of the electrostatic precipitator exposed to acid, especially the collecting electrodes, with to clad or use an acid protection made of lead or plastic made from lead. The invention now proposes for the collecting electrodes and if necessary also the housing walls of the electrostatic precipitator chamber instead of lead plates, To use leaded sheets or the like. Glass plates. So it is with the Invention exclusively to electrostatic precipitators for a specific purpose and in context herewith to save the lead metal previously necessary for this purpose. The invention thus differs fundamentally from the known glass claddings the high-voltage electrodes and the sighting devices, because they tracked neither electrophysical goals that are still instructive in terms of look, rather serve one economically extremely significant purpose, namely the, electrostatic precipitator of the special type under consideration here of lead or other for corrosion or. Acid protection of certain materials, mostly polymer plastics, to make them independent.

Die gemäß der Erfindung verwendeten Glasplatten werden vorteilhaft aus einzelnen Streifen von z. B. etwa 0,5 m Breite in einer geeigneten Schlitzführung zusammengesetzt, urh die - in solchen Industriefiltern oftmals erforderlichen großen senk-, rechten Elektrodenlängen von mehreren Metern zu erreichen. Ferner empfiehlt es sich, die der Benässung ausgesetzten Oberflächen der Glasplatten durch 3lattierung oder Riffelung zu rauhen oder in anderer Weise zu behandeln, um eine möglichst gleichmäßige Verteilung der ablaufenden Flüssigkeit zu gewährleisten. Die elektrische Leitfähigkeit und damit die Wirkung der Naßhaltung der Glasoberflächen kann in an sich bekannter Weise durch geeignete Zusammensetzung des Glasflusses, z. B. durch größeren Gehalt an Alkali, Titanoxyd od. dgl. gesteigert werden. Damit geht auch eine Verbesserung der Benetzungsfähigkeit des Glases Hand in Hand.The glass plates used according to the invention are advantageously made from individual strips of, for. B. about 0.5 m wide in a suitable slot guide, urh to achieve the large vertical, right electrode lengths of several meters that are often required in such industrial filters. It is also advisable to roughen the surfaces of the glass plates exposed to wetting by lating or corrugating or to treat them in some other way in order to ensure that the liquid that runs off is distributed as evenly as possible. The electrical conductivity and thus the effect of keeping the glass surfaces wet can be determined in a manner known per se by suitable composition of the glass flow, e.g. B. od by a larger content of alkali, titanium oxide. Like. Be increased. This also goes hand in hand with an improvement in the wettability of the glass.

Gegenüber Elektrofiltern, bei denen in bekannter Weise keramische Stoffe, wie säurefeste Steine, Steinzeug u. dgl. zum Aufbau der Niederschlagselektroden oder Kammerwände benutzt werden, hat die Verwendung von Glasplatten im Sinne der Erfindung den Vorteil, daß die Wandstärken ohne Beeinträchtigung der Sicherheit und Festigkeit h#esentlich geringer gehalten werden können, also an Material gespart wird und ferner die bei der Rufmauerung von Elektrodenflächen oder Wänden erforderlichen besonderen Maßnahmen und Umständlichkeiteri wegfallen.Compared to electrostatic precipitators, in which ceramic in a known manner Substances such as acid-resistant stones, stoneware and the like for the construction of the collecting electrodes or chamber walls are used, has the use of glass plates in the sense of Invention has the advantage that the wall thicknesses without compromising safety and strength can often be kept lower, thus saving material as well as those required for the masonry of electrode surfaces or walls special measures and inconveniences are no longer necessary.

Claims (4)

PATENTANSPRÜCHE: i. Elektrofilter, dessen Innenteile dei Wirkung aggressiver Gase oder Flüssigkeiten, wie Säuren, insbesondere Schwefelsäure, ausgesetzt sind, gekennzeichnet durch die au sich bekannte Verwendung von Glas als Baustoa in der Form von Glasplatten zur Herstellung der Niederschlagselektroden und gegebenenfalls der Gehäusewände. PATENT CLAIMS: i. Electrostatic precipitator, the inner parts of which are more aggressive Are exposed to gases or liquids such as acids, especially sulfuric acid, characterized by the well-known use of glass as a building block in the Form of glass plates for the production of the collecting electrodes and optionally the housing walls. 2. Elektrofilter nach Anspruch i, dadurch gekennzeichnet, daß die Glasplatten aus einzelnen Querstreifen zu senkrechten Längen von mehreren Metern zusammengesetzt sind. 2. Electric filter according to claim i, characterized in that the glass plates from individual horizontal strips to vertical lengths of several meters are composed. 3. Elektrofilter nach Anspruch i, dadurch gekennzeichnet, daß die Glasplatten oder -streifen auf der der Flüssigkeitsabscheidung oder -berieselung ausgesetzten Oberfläche gerauht, geriffelt oder in sonst einer, eine gleichmäßige Verteilung der Flüssigkeit sichernden Weise behandelt sind. 3. Electrostatic precipitator according to claim i, characterized in that that the glass plates or strips on that of the liquid separation or sprinkling exposed surface roughened, corrugated or otherwise, a uniform Distribution of the liquid securing manner are treated. 4. Elektrofilter nach Anspruch i, dadurch gekennzeichnet, daß das für die Platten oder Streifen verwendete Glas z. 13. durch Erhöhung des Gehalts an Alkali, Titanoxyd od. dgl., eine die elektrische Leitfähigkeit bzw. die Benetzungsfähigkeit verbessernde Zusammensetzung aufweist.4. Electrostatic precipitator after Claim i, characterized in that that used for the plates or strips Glass z. 13. Od by increasing the content of alkali, titanium oxide. Like., An electrical Has conductivity or the wetting ability-improving composition.
DES5494D 1944-11-14 1944-11-14 Electrostatic precipitator for aggressive gases or liquids Expired DE845495C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES5494D DE845495C (en) 1944-11-14 1944-11-14 Electrostatic precipitator for aggressive gases or liquids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES5494D DE845495C (en) 1944-11-14 1944-11-14 Electrostatic precipitator for aggressive gases or liquids

Publications (1)

Publication Number Publication Date
DE845495C true DE845495C (en) 1952-07-31

Family

ID=7471394

Family Applications (1)

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DES5494D Expired DE845495C (en) 1944-11-14 1944-11-14 Electrostatic precipitator for aggressive gases or liquids

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1099998B (en) * 1958-12-06 1961-02-23 Heinrich Zschocke Precipitation electrode for wet electrostatic precipitator
DE1113444B (en) * 1958-10-13 1961-09-07 Bayer Ag Electrostatic precipitator for the purification of chlorine gas produced during the electrolysis of aqueous alkali halide solutions
DE1231216B (en) * 1961-09-27 1966-12-29 Metallgesellschaft Ag Electrostatic wet separator for cleaning damp chlorine gas or exhaust gases containing chlorine gas
DE1265712B (en) * 1960-11-22 1968-04-11 Omnical Ges Fuer Kessel Und Ap Electrostatic filter housing made of prefabricated corrosion-resistant double-walled components
DE1280222B (en) * 1962-04-06 1968-10-17 Omnical Ges Fuer Kessel Und Ap Precipitation electrode for electrostatic dust collector
FR2486823A1 (en) * 1980-07-15 1982-01-22 Artama Arvi ELECTRIC FILTER
US4553987A (en) * 1982-03-11 1985-11-19 Lastro Ky Continuously rinsed electric dust collector

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1113444B (en) * 1958-10-13 1961-09-07 Bayer Ag Electrostatic precipitator for the purification of chlorine gas produced during the electrolysis of aqueous alkali halide solutions
DE1099998B (en) * 1958-12-06 1961-02-23 Heinrich Zschocke Precipitation electrode for wet electrostatic precipitator
DE1265712B (en) * 1960-11-22 1968-04-11 Omnical Ges Fuer Kessel Und Ap Electrostatic filter housing made of prefabricated corrosion-resistant double-walled components
DE1231216B (en) * 1961-09-27 1966-12-29 Metallgesellschaft Ag Electrostatic wet separator for cleaning damp chlorine gas or exhaust gases containing chlorine gas
DE1280222B (en) * 1962-04-06 1968-10-17 Omnical Ges Fuer Kessel Und Ap Precipitation electrode for electrostatic dust collector
FR2486823A1 (en) * 1980-07-15 1982-01-22 Artama Arvi ELECTRIC FILTER
WO1982000259A1 (en) * 1980-07-15 1982-02-04 A Artama Electric filter
US4553987A (en) * 1982-03-11 1985-11-19 Lastro Ky Continuously rinsed electric dust collector

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