DE314030C - - Google Patents
Info
- Publication number
- DE314030C DE314030C DENDAT314030D DE314030DA DE314030C DE 314030 C DE314030 C DE 314030C DE NDAT314030 D DENDAT314030 D DE NDAT314030D DE 314030D A DE314030D A DE 314030DA DE 314030 C DE314030 C DE 314030C
- Authority
- DE
- Germany
- Prior art keywords
- porcelain
- heat
- collecting electrodes
- hot gases
- conductivity
- 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.)
- Active
Links
- 229910052573 porcelain Inorganic materials 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 5
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000011449 brick Substances 0.000 claims description 2
- 239000004927 clay Substances 0.000 claims description 2
- 229910052570 clay Inorganic materials 0.000 claims description 2
- 239000000395 magnesium oxide Substances 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 229910052572 stoneware Inorganic materials 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims 1
- 239000011343 solid material Substances 0.000 claims 1
- 239000000428 dust Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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
- B03C3/62—Use of special materials other than liquids ceramics
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Spark Plugs (AREA)
Description
Sollen glühend heiße Gase elektrisch von mitgeführtem Staube befreit werden, so ergibt sich eine Schwierigkeit. Die aus Metall hergestellten Sammelelektroden werden in der Glühhitze unbrauchbar, sei es durch Erweichen oder Schmelzen, sei es durch Verbrennen oder sonstige chemische Verbindungen, die sie mit dem aufgelagerten Staube oder den Gasen eingehen: -If glowing hot gases are to be electrically freed from dust that has been carried along, the result is a difficulty. The collecting electrodes made of metal are in the Incandescent heat useless, be it through softening or melting, be it through burning or other chemical compounds that they enter into with the deposited dust or gases: -
ίο Die vorliegende Erfindung will diese Schwierigkeit dadurch vermeiden, daß sie die Sammelelektroden aus einem Material herstellt, das bei gewöhnlicher Temperatur freilich unbrauchbar ist, in der Hitze aber brauchbar wird und den Vorzug hat, feuerfest zu sein. Dahin gehören Porzellan, Steinzeug, Schamotte,-Ziegel und alle ähnlichen, im wesentlichen aus Ton, Magnesia und Kieselsäure, mit oderThe present invention addresses this difficulty avoid by making the collector electrodes from a material that is of course useless at ordinary temperature, but becomes usable in the heat and has the merit of being fireproof. This includes porcelain, stoneware, chamotte and bricks and all the like, consisting essentially of clay, magnesia and silica, with or
■ ohne Zusatz, hergestellten Stoffe. Alle diese Substanzen sind bei gewöhnlicher Temperatur zu schlechte Elektrizitätsleiter, um als Sammelelektroden brauchbar zu sein. Mit steigender Temperatur wächst aber ihre Leitfähigkeit. So wächst (nach den Untersuchungen von Fousserau, Nernst und Reynolds) das Leitvermögen des Porzellans bei einer Temperatursteigerung von 50 ° auf iopo° beinahe auf das io10 (Zehntausendmillion) fache. Durch die Benutzung eines der genannten Stoffe als Sammelelektrode wird es daher möglich, heiße Gase ohne Herabsetzung ihrer Temperatur staubfrei zu machen. Dieses ist aber von Wichtigkeit, da der Wärmegehalt eines heißen Gases einen Wert darstellt, den zu hüten man allen Grund hat.■ without additives, manufactured substances. All of these substances are too poor conductors of electricity at ordinary temperature to be useful as collecting electrodes. However, their conductivity increases as the temperature rises. Thus (according to the investigations by Fousserau, Nernst and Reynolds) the conductivity of the porcelain increases almost 10 (ten thousand million) times when the temperature rises from 50 ° to iopo °. By using one of the substances mentioned as a collecting electrode, it is therefore possible to make hot gases free of dust without lowering their temperature. But this is important, since the heat content of a hot gas is a value that one has every reason to be careful of.
Nicht neu ist zwar der Gedanke, Porzellan usw. schon bei gewöhnlicher Temperatur zu Sammelelektroden zu verwenden; zu diesem Behufe wurde aber das Porzellan mit einer leitenden Schicht, etwa einer Stanniol- oder Flüssigkeitsschicht, überzogen und diese Schicht mit dem einen Pole der Elektrizitätsquelle verbunden. In diesem Falle bildet also nicht das Porzellan, sondern die leitende Schicht die wirksame Sammelelektrode, während das Porzellan selbst nur die Rolle eines bloßen Trägers der Elektrode spielt. Von einer Benutzung in der Glühhitze ist hierbei nicht die Rede; die das Porzellan bedeckende Oberschicht mit ihrer leitenden Verbindung würde durch die Glühhitze sehr bald zerstört werden. An die Benutzung der Leitfähigkeit des Porzellans bei höheren Temperaturen hat man jedoch noch nicht gedacht.The idea that porcelain etc. should be closed at ordinary temperatures is not new To use collecting electrodes; but for this purpose the porcelain was made with a conductive layer, such as a tinfoil or liquid layer, and this layer connected to one pole of the electricity source. In this case, therefore, does not form the porcelain, but the conductive layer is the effective collecting electrode, while the Porcelain itself only plays the role of a mere support for the electrode. From one use there is no question of glowing heat; the one covering the porcelain The top layer with its conductive connection would very soon be destroyed by the glowing heat will. Has to use the conductivity of the porcelain at higher temperatures However, one has not yet thought of it.
Claims (1)
Publications (1)
Publication Number | Publication Date |
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DE314030C true DE314030C (en) |
Family
ID=566869
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT314030D Active DE314030C (en) |
Country Status (1)
Country | Link |
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DE (1) | DE314030C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1020003B (en) * | 1955-07-30 | 1957-11-28 | Metallgesellschaft Ag | Electrostatic filters consisting of several units that can be switched off against each other |
EP0550938A1 (en) * | 1992-01-09 | 1993-07-14 | METALLGESELLSCHAFT Aktiengesellschaft | Process and devices for gas dedusting at elevated temperatures |
EP0787531A1 (en) * | 1995-08-08 | 1997-08-06 | Galaxy Yugen Kaisha | Electrostatic precipitator |
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0
- DE DENDAT314030D patent/DE314030C/de active Active
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1020003B (en) * | 1955-07-30 | 1957-11-28 | Metallgesellschaft Ag | Electrostatic filters consisting of several units that can be switched off against each other |
EP0550938A1 (en) * | 1992-01-09 | 1993-07-14 | METALLGESELLSCHAFT Aktiengesellschaft | Process and devices for gas dedusting at elevated temperatures |
DE4200343A1 (en) * | 1992-01-09 | 1993-07-15 | Metallgesellschaft Ag | METHOD AND DEVICES FOR THE DEDUSTING OF GASES AT HIGH TEMPERATURES |
US5348571A (en) * | 1992-01-09 | 1994-09-20 | Metallgesellschaft Aktiengesellschaft | Apparatus for dedusting a gas at high temperature |
EP0787531A1 (en) * | 1995-08-08 | 1997-08-06 | Galaxy Yugen Kaisha | Electrostatic precipitator |
EP0787531A4 (en) * | 1995-08-08 | 1998-10-14 | Galaxy Yugen Kaisha | Electrostatic precipitator |
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