WO2008130267A1 - Filtre électrique - Google Patents

Filtre électrique Download PDF

Info

Publication number
WO2008130267A1
WO2008130267A1 PCT/RU2007/000738 RU2007000738W WO2008130267A1 WO 2008130267 A1 WO2008130267 A1 WO 2008130267A1 RU 2007000738 W RU2007000738 W RU 2007000738W WO 2008130267 A1 WO2008130267 A1 WO 2008130267A1
Authority
WO
WIPO (PCT)
Prior art keywords
confuser
grid
output
gas
ratio
Prior art date
Application number
PCT/RU2007/000738
Other languages
English (en)
Russian (ru)
Inventor
Lev Valentinovich Chekalov
Yakov Lvovich Ginzburg
Original Assignee
Lev Valentinovich Chekalov
Yakov Lvovich Ginzburg
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 Lev Valentinovich Chekalov, Yakov Lvovich Ginzburg filed Critical Lev Valentinovich Chekalov
Publication of WO2008130267A1 publication Critical patent/WO2008130267A1/fr

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
    • B03C3/36—Controlling flow of gases or vapour
    • B03C3/361—Controlling flow of gases or vapour by static mechanical means, e.g. deflector
    • B03C3/363—Controlling flow of gases or vapour by static mechanical means, e.g. deflector located before the filter
    • 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
    • B03C3/02—Plant or installations having external electricity supply
    • B03C3/04—Plant or installations having external electricity supply dry type
    • B03C3/09—Plant or installations having external electricity supply dry type characterised by presence of stationary flat electrodes arranged with their flat surfaces at right angles to the gas stream
    • 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
    • B03C3/36—Controlling flow of gases or vapour
    • B03C3/361—Controlling flow of gases or vapour by static mechanical means, e.g. deflector
    • B03C3/365—Controlling flow of gases or vapour by static mechanical means, e.g. deflector located after the filter

Definitions

  • the invention relates to the field of gas purification and dust collection and can be used for dry dust collection from gas in any industry, including for thermal power plants, ferrous and non-ferrous metallurgy, and in the production of building materials.
  • This electrostatic precipitator includes a housing, an electrode system, a diffuser, a confuser, and gas distribution grilles not only in the diffuser, but also at the inlet of the electrostatic precipitator confuser.
  • the grill at the entrance to the confuser overlaps the entire cross section.
  • the lattice in the confuser is located between its inlet and outlet sections so that there are gaps between its edges and the walls of the confuser.
  • the ratio of the distance from the lattice before the confuser exits to its length is in the range from 0.4 to 0.7, and the ratio of the lattice area to the confuser exit area is in the range from 3.4 to 5.2.
  • the drawing shows the proposed electrostatic precipitator. It contains :
  • the flapping arrow shows the gas flow, and the dashed arrow shows the dust.
  • gas and dust going together are shown, at the outlet, purified gas.
  • purified gas At the exit from the bunker - trapped and discharged dust.
  • L is the length of the confuser
  • X is the distance of the grating to the outlet of the confuser
  • F p is the area of the grating along the front
  • Fo is the cross-sectional area of the outlet of the confuser.
  • Dusty gases pass through the diffuser 2 and are distributed over the cross section of the system of precipitation and corona electrodes 6.
  • High voltage is applied to the corona electrodes, and the precipitation electrodes are grounded.
  • an electric field of the corona discharge Under its action, dust particles are charged and deposited on precipitation electrodes.
  • the dust accumulated on the precipitation electrodes is shaken off into the hopper and discharged from the electrostatic precipitator.
  • the efficiency of the electrodeposition of dust particles is largely determined by the uniformity of the velocity field of the gas flow passing through the electrode system 6.
  • the application of the invention provides a uniform velocity field at the outlet of the electrostatic precipitator and, therefore, a reduction in dust emission by 1.6 ... 2.5 times with significantly reduced metal consumption (up to 3.4 times) and hydraulic resistance, as well as an increase in the operating life of for removing dust deposits at the bottom of the grill.

Landscapes

  • Electrostatic Separation (AREA)

Abstract

L'invention concerne des appareils (des filtres électriques) destinés à nettoyer les gaz des particules solides en suspension et peut servir dans différentes industries. Le filtre électrique comprend un boîtier, un diffuseur, un concentrateur, des grilles de distribution de gaz et un système d'électrodes de collecte et d'électrodes corona. La grille de distribution de gaz dans le concentrateur est montée entre ces couples d'entrée et de sortie de manière à ce qu'un intervalle existe entre ses bords et les parois du concentrateur. Le rapport de la distance séparant ses bords et la sortie du concentrateur par rapport à sa longueur est compris entre 0,4 et 0,7, et le rapport de la surface de la grille et de la surface de sortie du concentrateur est compris entre 3,4 et 5,2. La mise en oeuvre de cette invention permet d'assurer un champ de vitesses régulier à la sortie du filtre électrique et, partant, une réduction d'émissions de poussière, qui est réduite de 1,6 à 2,5 fois alors que la consommation de métal est également réduite (jusqu'à 3,4 fois), de même que la résistance hydraulique; la durée de vie utile est prolongée grâce à l'élimination de dépôts de poussière dans la partie inférieure de la grille.
PCT/RU2007/000738 2007-04-18 2007-12-26 Filtre électrique WO2008130267A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2007114667 2007-04-18
RU2007114667/15A RU2007114667A (ru) 2007-04-18 2007-04-18 Электрофильтр

Publications (1)

Publication Number Publication Date
WO2008130267A1 true WO2008130267A1 (fr) 2008-10-30

Family

ID=39875706

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2007/000738 WO2008130267A1 (fr) 2007-04-18 2007-12-26 Filtre électrique

Country Status (2)

Country Link
RU (1) RU2007114667A (fr)
WO (1) WO2008130267A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8567183B2 (en) 2007-09-13 2013-10-29 Ecole Polytechnique Federale De Lausanne (Epfl) Multistage hydraulic gas compression/expansion systems and methods

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE520710C (de) * 1925-01-14 1931-03-13 Siemens Schuckertwerke Akt Ges Vorrichtung zur Aufteilung des in eine elektrische Reinigungskammer eintretenden Gasstromes
EP0629449A2 (fr) * 1993-06-18 1994-12-21 ALOIS SCHEUCH GESELLSCHAFT m.b.H. Electrofiltre compact

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE520710C (de) * 1925-01-14 1931-03-13 Siemens Schuckertwerke Akt Ges Vorrichtung zur Aufteilung des in eine elektrische Reinigungskammer eintretenden Gasstromes
EP0629449A2 (fr) * 1993-06-18 1994-12-21 ALOIS SCHEUCH GESELLSCHAFT m.b.H. Electrofiltre compact

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
GORDON G.M. ET AL.: "Pyleulavlivanie i otchistka gazov", M.; IZD-VO "METALLURGIYA, 1968, pages 320 - 321 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8567183B2 (en) 2007-09-13 2013-10-29 Ecole Polytechnique Federale De Lausanne (Epfl) Multistage hydraulic gas compression/expansion systems and methods

Also Published As

Publication number Publication date
RU2007114667A (ru) 2008-10-27

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