EP0629449A2 - Electrofiltre compact - Google Patents

Electrofiltre compact Download PDF

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Publication number
EP0629449A2
EP0629449A2 EP94890103A EP94890103A EP0629449A2 EP 0629449 A2 EP0629449 A2 EP 0629449A2 EP 94890103 A EP94890103 A EP 94890103A EP 94890103 A EP94890103 A EP 94890103A EP 0629449 A2 EP0629449 A2 EP 0629449A2
Authority
EP
European Patent Office
Prior art keywords
electrodes
housing
spray
precipitation
filter according
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Withdrawn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
EP94890103A
Other languages
German (de)
English (en)
Other versions
EP0629449A3 (fr
Inventor
Alois Scheuch
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.)
Alois Sceuch GmbH
Original Assignee
Alois Sceuch GmbH
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 Alois Sceuch GmbH filed Critical Alois Sceuch GmbH
Publication of EP0629449A2 publication Critical patent/EP0629449A2/fr
Publication of EP0629449A3 publication Critical patent/EP0629449A3/fr
Withdrawn legal-status Critical Current

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    • 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
    • B03C3/08—Plant or installations having external electricity supply dry type characterised by presence of stationary flat electrodes arranged with their flat surfaces parallel 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
    • B03C3/01—Pretreatment of the gases prior to electrostatic precipitation
    • B03C3/011—Prefiltering; Flow controlling
    • 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
    • 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
    • B03C3/41—Ionising-electrodes
    • 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
    • B03C3/74—Cleaning the electrodes
    • B03C3/76—Cleaning the electrodes by using a mechanical vibrator, e.g. rapping gear ; by using impact
    • 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
    • B03C3/74—Cleaning the electrodes
    • B03C3/76—Cleaning the electrodes by using a mechanical vibrator, e.g. rapping gear ; by using impact
    • B03C3/766—Cleaning the electrodes by using a mechanical vibrator, e.g. rapping gear ; by using impact with pneumatic rappers
    • 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
    • B03C3/86—Electrode-carrying means
    • 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
    • B03C2201/00—Details of magnetic or electrostatic separation
    • B03C2201/10—Ionising electrode with two or more serrated ends or sides

Definitions

  • the invention relates to a compact electrostatic precipitator, comprising a plurality of parallel precipitation electrodes designed as vertical plates with recesses, preferably holes, in the area of at least their lower, preferably all corners, and further comprising a plurality of electrodes extending parallel to an edge of the precipitation electrodes hanging frame parallel to the precipitation electrodes stick electrodes as negative high voltage spray electrodes, which electrodes are arranged in a housing provided with at least one tapering away from the electrodes inlet and outlet channel.
  • Electrostatic filters are used to separate dust from gases containing dust. This gas enters the housing of the electrostatic filter through an inlet channel, possibly with gas distribution devices, where the dust particles are predominantly negatively ionized by spray electrodes which are subjected to negative direct voltage.
  • the negative dust particles migrate to the positively charged or grounded precipitation electrodes, where layers of dust that are several millimeters thick are formed over the course of time.
  • a small proportion of the dust is positively ionized by the corona discharge and migrates to the spray electrode, where it also forms a layer. Both electrodes are therefore cleaned periodically, preferably by tapping them, the falling dust is removed and sent for further disposal in containers.
  • the precipitation electrodes are arranged at a great distance from one another, approximately 200 to 500 mm, which further increases the space requirement and forces low gas velocities.
  • the object of the invention was therefore an electrostatic filter of the type specified at the outset, which, while avoiding the disadvantages described above, is particularly suitable for small to medium-sized boiler systems and has an optimal ratio of separating power to space requirement.
  • the dimensions of smaller plants should be taken into account in all dimensions of the system and a simple, economical and compact electrostatic filter should be created.
  • At least one frame part of the suspension of the spray electrodes is guided through the recesses in the precipitation electrodes, and the precipitation electrodes are guided up to the beginning of each tapering section of the inlet and outlet channels.
  • the precipitation electrodes take up the entire usable space within the actual housing of the electrostatic precipitator and allow an optimal relationship between the separation area and the housing volume.
  • the suspension for the spray electrodes necessary components no longer reduce the volume available for the installation of the precipitation electrodes, as is the case with conventional designs.
  • the electrostatic filter according to the invention can therefore be built smaller than conventional filters.
  • the dwell time in the filter is very long even at high gas speeds due to the optimal use of the filter housing volume.
  • the further feature of the invention contributes to the compact design and the improved utilization of the available volume for the deposition that the precipitation electrodes are at a maximum distance of 200 mm from one another, preferably 130 to 135 mm.
  • the distance mentioned, the so-called alley distance also allows the voltage of the spray electrodes to be reduced from at least 60 kV in the case of conventional filter types to 20 to 25 kV. This in turn can reduce the distance between the high-voltage and earthed parts of the system and make better use of the housing volume - namely actively for the separation.
  • no special measures have to be taken to isolate the live parts, instead it is sufficient, for example, to use simple high-voltage cables without particularly expensive insulation.
  • the precipitation electrodes consist of several plates arranged in a line, which are bent at their vertical edges to open hollow profiles along these edges, preferably adjacent plates are arranged such that their hollow profiles are on opposite sides to open.
  • the hollow profiles form catch pockets for dust that may have been torn loose by the gas flow, as well as stiffeners for the plate-shaped precipitation electrodes, which can thus be made thinner, lighter and more economically. Due to the modular structure of the precipitation electrodes from plates, these plates can be economically prefabricated in uniform sizes and installed in the required number depending on the filter size.
  • the plates are held at the top and bottom by profiles, the upper profile being suspended from the ceiling of the housing and the lower profile being vertically movable with its ends in vertical slots in a rail on the bottom of the housing, simplifies this Construction and assembly of the filter according to the invention.
  • a particularly safe and at the same time taking advantage of the space available in the housing of the electrostatic filter according to the invention is provided if the spray electrodes are arranged in a frame, of which at least the lower frame parts, transverse to the precipitation electrodes, preferably all transverse frame parts, through the openings of the Precipitation electrodes are passed through.
  • the electrostatic precipitator is advantageously characterized in that the frame for the spray electrodes is located on the ceiling of the housing Support insulators is suspended and has at least two insulators arranged on the sides opposite each other with respect to the vertical center plane of the housing, the opposite insulators each lying on opposite sides of one of the lower profiles of the precipitation electrodes and being guided vertically movably thereon. With exact centerability between the precipitation electrodes, accurate to within ⁇ 2 mm, the vertical mobility for cleaning the spray electrodes is fully given.
  • the insulators are preferably made from porcelain or from solid plastic material such as PTFE.
  • the PTFE solid material insulators are insensitive to the effects of cleaning by the pneumatic knockers and can also be used permanently up to temperatures of around 270 ° C, while porcelain can only be used to a limited extent due to the greater risk of breakage.
  • each spray electrode consists of two multiply edged profiles, preferably connected by spot welding, with spray tips which are held at their upper and lower ends in profiles of the frame running parallel to the vertical central plane of the housing.
  • the spray tips form an acute angle with the plane defined by the spray electrodes located one behind the other, preferably of the order of about 60 °, the ends of the tips preferably being closer to the neighboring precipitation electrodes than any other part of the spray electrode, the spraying effect is particularly good and thus the filter's separation efficiency.
  • baffles for the gas flow are present, which are oriented vertically and whose mutual distance increases in accordance with the dimensions of the inlet channel towards the electrodes. This already divides and aligns the gas flow over the entire inflow cross section of the active part of the filter when the raw gas enters the electrostatic filter.
  • two gas distributor plates are advantageously provided in the inlet channel in front of the electrodes, at least the gas distributor plate which is the most distant from the electrodes is provided with openings which have a smaller cross section in the central region than in the peripheral zones.
  • a simple, yet compact and stable structure of the electrostatic precipitator is advantageously provided if both the precipitation and the spray electrodes are only mounted on the ceiling of the housing, preferably U-profiles which are open at the top and oriented transversely to the electrodes, at least at the level of the Support insulators of the spray electrodes are provided.
  • pneumatic knockers acting on the U-profiles perpendicular to the ceiling of the housing and arranged outside the actual filter housing are provided and are preferably connected to a circuit which alternately starts up the pneumatic knockers for the gas flow when the blower is at a standstill, very good cleaning of the electrodes can be achieved without requiring additional space inside the filter housing. Due to the rigidity of the U-profile, only one pneumatic knocker, preferably arranged centrally on it, can be provided for each of them.
  • a tapping mechanism that acts on one of the two U-profiles perpendicular to the ceiling of the housing, is arranged outside the actual filter housing and is preferably operated continuously. This means that only one tapping mechanism is required for both types of electrodes, which is based on the good impulse initiation through the rigidity of the U-profile.
  • the advantage of having only one tapping mechanism for both types of electrodes also has a further variant according to the invention, which is characterized in that a tapping mechanism acting on at least one rod-shaped anvil and inserted into the housing per type of electrode via at least one hammer each outside the actual one Filter housing, preferably attached to the underside of the inlet or outlet channel and operated intermittently, is provided, the at least two hammers being mounted on a tapping rod that is rotated by a motor and normally oriented on the at least two anvils, and the anvils preferably parallel to the longitudinal axis of the housing or the electrode frame are arranged.
  • the hammers of the tapping mechanism are made of metallic material and the or each anvil acting on the or each spray electrode is connected to it by an insulator.
  • the high-voltage system is preferably designed to supply the spray electrodes with a negative DC voltage of less than 50 kV, preferably between 20 and 25 kV, which, with the same separation performance, the design of the filter due to the possible use of conventional high-voltage cables, without the need for complex additional insulation measures, and Using a smaller sized high voltage system makes it less expensive.
  • FIG. 1 shows the side view of a vertical cross section through the electrostatic filter
  • FIG. 2 is a top view of a horizontal cross section
  • FIG. 3 is a side view
  • FIG. 4 shows a front view of a precipitation electrode
  • FIG. 5 shows a top view of a plate a precipitation electrode
  • Fig. 6 shows a side view
  • Fig. 7 shows a top view of a spray electrode
  • Fig. 8 shows a gas distributor plate
  • Fig. 9 shows a detail of the suspension of the spray electrodes on the ceiling of the electrostatic precipitator
  • Fig. 10 is a side view of a tapping mechanism according to a variant of the invention and
  • FIG. 11 is a front view of the tapping mechanism of FIG. 10.
  • Fig. 1 denotes the cuboid housing of the compact electrostatic precipitator, which is provided with an inlet channel 2 and an outlet channel 3, which widen in the direction of the center of the housing 1, preferably in the form of a truncated pyramid.
  • a plurality of plate-shaped precipitation electrodes 4, which are grounded, and a multiplicity of spray electrodes 5, to which negative direct voltage of 20 to 25 kV is applied, are arranged in the housing 1.
  • the operating current is approximately 0.5 to 0.7 mA per m2 of precipitation electrode.
  • the housing 1 is designed for up to 50 mbar negative or positive pressure and for temperatures up to 300 ° C.
  • the high-voltage system which works with a primary voltage of 220 V or 380 V, the control cabinet and the preferably used induced draft fan, which is designed for gas speeds of up to 1.5 m / s, are not shown.
  • pneumatic knockers 6 or a tapping mechanism are mounted on the outside of the ceiling of the housing 1 or on the inlet or outlet channel 2, 3, the pneumatic knockers 6 preferably being used when the cleaning is stopped when the Blower takes place. This results in the lowest dust content in the clean gas, that no dust is entrained by the gas flow and the entire amount of dust knocked out passes through the discharge devices, not shown, into the dust container, also not shown.
  • a tapping unit for example a somersaver hammer unit, is preferably used, although somewhat higher dust contents in the clean gas must be expected.
  • the precipitation electrodes 4 are provided at their corners with holes 41, essentially rectangular plates, which extend to the beginning of the tapered sections of the inlet channel 2 or the outlet channel 3 and over almost the entire height of the housing 1, only for the Cleaning and expansion necessary vertical mobility must be ensured.
  • a precipitation electrode 4 consists of several plates 4a, 4b and 4c, which are held together essentially in a plane lying together by upper profiles 42 and lower profiles 43, which are preferably screwed together.
  • the upper profiles 42 are preferably also connected to the ceiling of the housing 1 at several points 44 by screwing.
  • the lower profiles 43 are, as is clearly shown in Fig. 4, shaped such, preferably to a closed cross-section with outwardly projecting edges, that they are wider than the greatest width of the plates 4a, 4b and 4c and are in at the bottom of the Housing 1 vertically standing and provided with vertical slots rails 7 (see Fig. 1) vertically movable.
  • the precipitation electrodes 4 in the housing are at precisely defined intervals from one another, they form the so-called alleys through which the gas to be cleaned flows and in which the spray electrodes 5 are arranged, while cleaning is possible by vertical or longitudinally guided horizontal impacts .
  • the individual plates 4a, 4b and 4c are relatively thin and, for stiffening at the vertically coming edges, are folded into an open profile 45, the openings of both profiles 45 of each plate 4a, 4b and 4c being on the same side.
  • the open profiles 45 advantageously also form catch pockets for dust torn off from the precipitation electrodes 4 and thus contribute to increasing the separation efficiency. So that this latter effect takes effect on both sides of each precipitation electrode 4, the plates 4a, 4b and 4c are arranged in such a way that the openings of the profiles 45 in two adjacent plates each point to opposite sides.
  • spray electrodes 5 are arranged in a row between the precipitation electrodes 4, the gap between the alleys preferably being between 130 and 135 mm.
  • These spray electrodes 5 are arranged in a frame which, like the precipitation electrodes 4, is likewise suspended from the insulator 8 on the ceiling of the housing 1 of the electrostatic filter.
  • the knocking devices 6 thus act also on the spray electrodes 5.
  • the rows of spray electrodes 5 located in the individual aisles are connected to one another by parts 51 running transversely to the rows and thus also transversely to the precipitation electrodes 4, these parts 51 being guided through the holes 41 in the precipitation electrodes 4. Since the entire frame 5 is connected to the negative high voltage, a sufficient distance must of course be provided between the parts 51 and the inner edges of the holes 41, so that no voltage flashovers can occur. Only this interplay of transverse parts 51 of the frame 5 and holes 41 allows the usable area of the precipitation electrodes 4 to be enlarged by extending them to essentially the entire length of the housing 1.
  • This extension of the precipitation electrodes 4 also increases the residence time of the gas flow in the filter higher gas speeds, which is why the filter achieves better separation rates even at gas speeds of up to 1.5 m / s than proportionally reduced conventional filter designs.
  • Each spray electrode 5, as shown in Fig. 6, is composed of two preferably canted profiles 52, the central portion 53 of which for stiffening the construction has the shape of a triangle open on one side, which portion is flat and in the plane of the open Connect sections 54 on the side of the triangle.
  • These sections 54 preferably have spray tips 55 which are offset with respect to one another on the opposite sides in the longitudinal direction of the profile 52 and which form an acute angle of approximately 60 ° with the plane of the sections 54.
  • the spray tips 55 are so long that they protrude further beyond the plane of the sections 54 than the edge of the central section 53 of the Profiles 52.
  • two such profiles 52, facing the open sides of the central sections 53 and adjoining the sections 54 form a spray electrode 5.
  • the two profiles 52 are preferably connected to one another by spot welding and by running along the aisles between the precipitation electrodes 4 Frame parts 56 held up and down.
  • the frame parts 56 are in turn connected to one another by the transverse parts 51 of the frame, which run through the holes 41 of the precipitation electrodes 4, and are held at a fixed distance from one another.
  • insulators 9 are provided in the lower region of the frame 5, preferably attached to the parts 51, which are perpendicular to both sides Middle plane of the housing 1 are mounted in the region of the ends of the frame parts 56.
  • insulators 9 lie on opposite sides of the lower profiles 43 of the precipitation electrodes 4 and are thereby exactly fixed laterally guided vertically. It is thus possible to maintain the distances between the precipitation electrodes 4 and the spray electrodes 5 to within a few millimeters, even to within ⁇ 2 mm, and yet to allow the spray electrodes 5 to be cleaned by vertical or horizontal impacts parallel to the guidance of the electrodes.
  • openings 12a, 12b are preferably circular openings 12a, 12b, which extend over the entire cross section of the inlet channel 2 and possibly also the outlet channel 3, which oppose the gas flow and thus cause a more uniform distribution of the flow over the entire cross section of the respective channel.
  • the openings 12b located in the central region of the plate 12 are smaller than the openings 12a located in the edge region, at least in the gas distributor plate 12 located closer to the electrodes 4, 5 in order to improve this distributing effect.
  • FIG. 9 shows a detail of the suspension of the electrodes 4, 5 and their connection to the tapping device 6 on an enlarged scale.
  • the support insulators 8 for the frame of the spray electrodes 5, which are fastened to the ceiling of the housing 1 via the frame part 56, are arranged within U-profiles 13 which are open at the top and which are U-profiles 13 which are fixed to the frame Ceiling of the housing 1 connected, preferably screwed.
  • a knock-off device 6, here in the form of a pneumatic knocker in a soundproof housing is placed on each U-profile 13 on the upward-pointing legs of the profile 13 and thus an optimal transmission of the impacts of the knock-off device 6 on the ceiling of the housing 1 and further on the electrodes 4, 5 guaranteed.
  • the tapping devices 6 can, depending on requirements, depending on the required dust content in the clean gas and the mode of operation of the electrostatic precipitator - work continuously or with the gas blower standing still - in intermittent operation or also continuously.
  • a motor for example a spur gear motor 61, rotates a tapping rod 62 either directly or via gears, a belt, a chain 61 'or the like.
  • This rod 62 in the form of a tumbler hammer mechanism, has at least one hammer 63a for the or each spray electrode 5 and at least one second hammer 63b for the or each precipitation electrode 4, freely rotatable on its circumference.
  • the hammers 63 spaced axially from one another in accordance with the distances between the electrodes 4, 5 are preferably offset from one another by a certain angle along the circumference of the tapping rod 62.
  • the hammers 63a, 63b are made of a metallic material, for example steel, and each act on at least one anvil 64a for the or each spray electrode 5 and at least one anvil 64b for the or each precipitation electrode 4.
  • each precipitation electrode plate 4 and the associated one Hammer 63b each have an anvil 64b and two anvils 64a are provided for the frame with the spray electrodes 5 with its two hammers 63a.
  • the anvils 64a, 64b are guided through sealed bushings 67a, 67b in a U-profile open to the outside on the housing 1 into the interior of the filter.
  • an insulator 65 is inserted between the frame with the spray electrodes 5 and the or each anvil 64a.
  • the or each anvil 64b for the or each deposition electrode 4 is on the outside section of the housing 1 is provided with a device 66 for precise length adjustment and for elastic return to the starting position before the impact of the associated hammer 63b.
  • the anvils 64a, 64b are preferably aligned exactly parallel to the longitudinal axis of the housing 1 or the precipitation electrodes 4 or the frame for the spray electrodes 5.
  • the tapping rod 62 is oriented perpendicularly thereto and the length of the hammers 63a, 63b is dimensioned such that the hammers 63a, 63b meet the end faces of the anvils 64a, 64b exactly axially.
  • the intervals between the intermittent cleaning processes are selected, although, of course, continuous operation of the cleaning system described would also be possible.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrostatic Separation (AREA)
EP94890103A 1993-06-18 1994-06-15 Electrofiltre compact. Withdrawn EP0629449A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT1206/93 1993-06-18
AT120693 1993-06-18

Publications (2)

Publication Number Publication Date
EP0629449A2 true EP0629449A2 (fr) 1994-12-21
EP0629449A3 EP0629449A3 (fr) 1995-02-15

Family

ID=3508917

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94890103A Withdrawn EP0629449A3 (fr) 1993-06-18 1994-06-15 Electrofiltre compact.

Country Status (1)

Country Link
EP (1) EP0629449A3 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008130267A1 (fr) * 2007-04-18 2008-10-30 Lev Valentinovich Chekalov Filtre électrique
RU2353420C1 (ru) * 2007-08-20 2009-04-27 ЗАО "Кондор-Эко" Электрофильтр
CN105344474A (zh) * 2015-12-11 2016-02-24 佛山市科蓝环保科技股份有限公司 一种均风板
CN107684977A (zh) * 2017-08-30 2018-02-13 珠海格力电器股份有限公司 一种电净化结构及包含其的空气净化装置
CN113245063A (zh) * 2021-06-21 2021-08-13 爱优特空气技术（上海）有限公司 一种超薄微静电净化器
CN114570529A (zh) * 2022-03-17 2022-06-03 福建欣隆环保股份有限公司 一种新型导电滤槽电除尘器
EP4056282A1 (fr) * 2021-03-10 2022-09-14 KMA Umwelttechnik GmbH Électrode de pulvérisation et électrofiltre doté d'une telle électrode de pulvérisation

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1344330A (en) * 1918-10-31 1920-06-22 Research Corp Orifice-precipitator
DE520710C (de) * 1925-01-14 1931-03-13 Siemens Schuckertwerke Akt Ges Vorrichtung zur Aufteilung des in eine elektrische Reinigungskammer eintretenden Gasstromes
FR1055710A (fr) * 1951-06-14 1954-02-22 Metallgesellschaft Ag Dispositif pour la réparation du gaz dans les électrofiltres
SE452956B (sv) * 1984-11-05 1988-01-04 Flaekt Ab For ett flertal emissionselektroder avsedd fasthallningsanordning
DE3712726A1 (de) * 1987-04-15 1988-11-10 Metallgesellschaft Ag Spruehelektrode

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008130267A1 (fr) * 2007-04-18 2008-10-30 Lev Valentinovich Chekalov Filtre électrique
RU2353420C1 (ru) * 2007-08-20 2009-04-27 ЗАО "Кондор-Эко" Электрофильтр
CN105344474A (zh) * 2015-12-11 2016-02-24 佛山市科蓝环保科技股份有限公司 一种均风板
CN107684977A (zh) * 2017-08-30 2018-02-13 珠海格力电器股份有限公司 一种电净化结构及包含其的空气净化装置
EP4056282A1 (fr) * 2021-03-10 2022-09-14 KMA Umwelttechnik GmbH Électrode de pulvérisation et électrofiltre doté d'une telle électrode de pulvérisation
CN113245063A (zh) * 2021-06-21 2021-08-13 爱优特空气技术（上海）有限公司 一种超薄微静电净化器
CN114570529A (zh) * 2022-03-17 2022-06-03 福建欣隆环保股份有限公司 一种新型导电滤槽电除尘器

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