DE1078095B - Corrosion-resistant discharge electrode for electrostatic precipitators - Google Patents
Corrosion-resistant discharge electrode for electrostatic precipitatorsInfo
- Publication number
- DE1078095B DE1078095B DEM19303A DEM0019303A DE1078095B DE 1078095 B DE1078095 B DE 1078095B DE M19303 A DEM19303 A DE M19303A DE M0019303 A DEM0019303 A DE M0019303A DE 1078095 B DE1078095 B DE 1078095B
- Authority
- DE
- Germany
- Prior art keywords
- corrosion
- electrostatic precipitators
- discharge electrode
- resistant discharge
- resistant
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION 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
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/40—Electrode constructions
- B03C3/60—Use of special materials other than liquids
Description
Nach dem Hauptpatent 1 001 239 werden als korrosionsbeständige Elektroden für Elektrofilter, insbesondere als Sprühelektroden, Drähte mit einem Titannitridüberzug von geringer Stärke durch Ausscheiden aus der Gasphase verwendet.According to the main patent 1 001 239, corrosion-resistant electrodes for electrostatic precipitators, in particular as spray electrodes, wires with a titanium nitride coating of low thickness by precipitation used from the gas phase.
Erfindungsgemäß besteht ein korrosionschützender Überzug von geringer Stärke, der durch Ausscheiden aus der Gasphase hergestellt ist, aus einem Silizid, Borid oder Carbid eines Metalls der Titangruppe (insbesondere Titan, Zirkon, Hafnium) oder Vanadingruppe (Vanadin, Niob, Tantal) oder der Chromgruppe (Chrom, Wolfram, Molybdän) oder Legierungen derselben. Insbesondere eignen sich Titan und Tantal für diesen Zweck.According to the invention there is an anti-corrosion coating of low thickness, which is caused by precipitation is made from the gas phase, from a silicide, boride or carbide of a metal of the titanium group (in particular Titanium, zirconium, hafnium) or vanadium group (vanadium, niobium, tantalum) or the chromium group (Chromium, tungsten, molybdenum) or alloys of the same. In particular, titanium and Tantalum for this purpose.
Die Herstellung von Drähten aus korrosionsbeständigen Metallen, beispielsweise Tantal, ist schwierig und sehr teuer. Bisher hat man sich meist mit verbleiten Drähten für Sprühelektroden beholfen. Bei dem hohen spezifischen Gewicht des Bleis ist das Eigengewicht des Bleimantels nicht mehr zu vernachlässigen und belastet erheblich den eigentlichen Draht. Dieser Umstand zwingt dazu, Drähte mit größerem Querschnitt zu verwenden. Dies hat den Nachteil, daß der Wirkungsgrad des Filters erheblich herabgesetzt wird.Making wires from corrosion-resistant metals, such as tantalum, is difficult and very expensive. Until now, leaded wires for spray electrodes have mostly been used. at Due to the high specific weight of the lead, the dead weight of the lead jacket can no longer be neglected and puts a considerable strain on the actual wire. This fact forces you to use wires with larger To use cross-section. This has the disadvantage that the efficiency of the filter is considerably reduced will.
Die Überzüge nach der Erfindung können nach verschiedenen, an sich bekannten Verfahren aufgebracht werden. Die Abscheidung mit Hilfe einer Reaktion in der Gasphase bei höheren Temperaturen gestattet die Herstellung dünner und besonders gleichmäßiger Überzüge.The coatings according to the invention can be applied by various methods known per se will. The deposition with the help of a reaction in the gas phase at higher temperatures allows Production of thin and particularly uniform coatings.
Titanüberzüge lassen sich beispielsweise durch Reduktion oder thermische Spaltung der Halogenide aufbringen, insbesondere des Bromids oder Jodids. Die Nitride, Suizide, Bromide oder Carbide können direkt als solche aufgebracht werden oder durch nachträgliche Behandlung der entsprechenden metallischen Überzüge.Titanium coatings can be obtained, for example, by reducing or thermally cleaving the halides apply, especially the bromide or iodide. The nitrides, suicides, bromides or carbides can can be applied directly as such or by subsequent treatment of the corresponding metallic Coatings.
Da die Überzüge nur auf Korrosion beansprucht werden, sind Überzüge von etwa 20 bis 30 κμ schon völlig ausreichend. Das Eigengewicht der Überzüge kann praktisch vernachlässigt werden. Dies hat den Korrosionsbeständige AusströmerelektrodeSince the coatings are only exposed to corrosion, coatings of around 20 to 30 κμ are fine completely adequate. The weight of the coatings themselves can practically be neglected. This has the Corrosion-resistant discharge electrode
für Elektrofilterfor electrostatic precipitators
Zusatz zum Patent 1 001 239Addendum to patent 1 001 239
Anmelder:Applicant:
Metallgesellschaft Aktiengesellschaft,
Frankfurt/M., Reuterweg 14Metallgesellschaft Aktiengesellschaft,
Frankfurt / M., Reuterweg 14
Dr. Arnold Münster und Dr. Wilhelm Ruppert,Dr. Arnold Münster and Dr. Wilhelm Ruppert,
Frankfurt/M.,
sind als Erfinder genannt wordenFrankfurt / M.,
have been named as inventors
Vorteil, daß man nun wesentlich kleinere Drahtquerschnitte zulassen kann, wodurch der Wirkungsgrad der Elektrofilter wesentlich verbessert wird.The advantage is that you can now allow much smaller wire cross-sections, which increases the efficiency the electrostatic precipitator is significantly improved.
Als Drahtmaterial können die bisher verwendeten Chromnickeldrähte oder auch ein billigerer Werkstoff eingesetzt werden.As wire material, the previously used chrome-nickel wires or a cheaper material can be used can be used.
Claims (1)
Deutsche Patentschrift Nr. 465 276;
schweizerische Patentschrift Nr. 277 400;
französische Patentschrift Nr. 500 775;
belgische Patentschrift Nr. 500 574.Considered publications:
German Patent No. 465 276;
Swiss Patent No. 277 400;
French Patent No. 500 775;
Belgian patent specification No. 500 574.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEM19303A DE1078095B (en) | 1953-07-13 | 1953-07-13 | Corrosion-resistant discharge electrode for electrostatic precipitators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEM19303A DE1078095B (en) | 1953-07-13 | 1953-07-13 | Corrosion-resistant discharge electrode for electrostatic precipitators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1078095B true DE1078095B (en) | 1960-03-24 |
Family
ID=7297942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEM19303A Pending DE1078095B (en) | 1953-07-13 | 1953-07-13 | Corrosion-resistant discharge electrode for electrostatic precipitators |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1078095B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE500574A (en) * | ||||
| FR500775A (en) * | 1918-01-25 | 1920-03-24 | Sidney Frazer Barclay | Improvements in devices for separating suspended particles from the gases that contain them |
| DE465276C (en) * | 1923-05-18 | 1928-09-15 | Philips Nv | Glow cathode for discharge tubes |
| CH277400A (en) * | 1948-01-08 | 1951-08-31 | Boehler & Co Ag Geb | Process for increasing the resistance of the surface of steel parts to wear, especially at high temperatures. |
-
1953
- 1953-07-13 DE DEM19303A patent/DE1078095B/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE500574A (en) * | ||||
| FR500775A (en) * | 1918-01-25 | 1920-03-24 | Sidney Frazer Barclay | Improvements in devices for separating suspended particles from the gases that contain them |
| DE465276C (en) * | 1923-05-18 | 1928-09-15 | Philips Nv | Glow cathode for discharge tubes |
| CH277400A (en) * | 1948-01-08 | 1951-08-31 | Boehler & Co Ag Geb | Process for increasing the resistance of the surface of steel parts to wear, especially at high temperatures. |
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