US3219130A - Mechanism for rapping the collecting electrodes in electrostatic precipitators - Google Patents

Mechanism for rapping the collecting electrodes in electrostatic precipitators Download PDF

Info

Publication number
US3219130A
US3219130A US291932A US29193263A US3219130A US 3219130 A US3219130 A US 3219130A US 291932 A US291932 A US 291932A US 29193263 A US29193263 A US 29193263A US 3219130 A US3219130 A US 3219130A
Authority
US
United States
Prior art keywords
hammers
hammer
rapping
bar
raps
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 - Lifetime
Application number
US291932A
Other languages
English (en)
Inventor
Steuernagel Walter
Bobel Walter
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
Application granted granted Critical
Publication of US3219130A publication Critical patent/US3219130A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B03C3/74—Cleaning the electrodes
    • B03C3/76—Cleaning the electrodes by using a mechanical vibrator, e.g. rapping gear ; by using impact

Definitions

  • This invention relates to a mechanism for rapping the dust collecting electrode plates in electrostatic precipitators.
  • the collecting electrode plates In order to maintain the dust collection efiiciency of the electrostatic precipitator, the collecting electrode plates must be kept substantially free from adhering deposits of dust. Large volumes of gas containing high concentrations of dust precipitate considerable volumes of dust on the collecting electrode plates within a very short time. In order to prevent the cleaning operation from swirling the dust back into the gas stream, it is advisable to rap the electrode plates in such a way that the dust will detach itself from said plates in large flakes and fall into the dust box without raising a cloud. This can be achieved by applying gentle raps. However, thin layers of dust always remain on the electrode plates which refuse to be detached by gentle raps and which then continue to reduce the dust collection efiiciency of the plates.
  • a mechanism for rapping collecting electrode plates in electrostatic precipitators by the application of raps to an end of a rapper bar by means of at least two tumbling or somersaulting hammers wherein the hammers are of consecutively increasing weight and are eccentrically mounted on the same axis of a rotary member in such manner that rotation of the rotary member causes the hammers to rap the rapper bar such that a series of raps is produced each consisting of a number of raps of increasing intensity.
  • the mechanism has tumbling hammers which are of a spherical or a cylindrical disc-like shape so arranged that each tumbling hammer is attached to a movable arm and adapted to strike centrally the rear face of the preceding hammer which has already struck the rapper bar.
  • the tumbling hammers have a cube or 3,219,130 Patented Nov. 23, 1965 brick shape, and only one side of the hollow cube or brick, which may lack a bottom, top and rear face, may form a hammer face so contrived that consecutively operating hammers can strike the back of the preceding hammer face, one hammer fitting into the other. In this way, the entire impact can be directly transferred to the rapper bar wi'hout loss of a lateral component of momentum.
  • a further modified form of this invention is composed of a spring-urged rapping bar, and means for moving the rapping bar against the spring for at least two distances, and subsequently releasing the rapping bar so that the latter effects the rapping of the electrode plates under the influence of the spring, the intensity of the rap being proportional to the distance moved by the rapping bar against the spring, and the arrangement being such that a series of raps is produced each consisting of a number of raps of increasing intensity.
  • Another modified form of this invention has the rapping bar moved by a rotating cam having at least two extensions each being of different length and arranged so that rotation of the cam causes the extensions in turn to bear upon upon a plate fixed to or integral with the rapping bar and thus move the bar against the pressure of the spring.
  • FIGURES 1, 2 and 3 are side views showing one embodiment of a mechanism constructed in accordance with the invention in successive positions;
  • FIGURE 4 is a side view showing another embodiment of this invention.
  • FIGURE 5 is an end view of the mechanism shown in FIGURE 4.
  • FIGURE 6 is a view similar to FIGURE 4 showing the hammer in another position.
  • FIGURE 7 is a cross-sectional view showing a further embodiment of this invention.
  • FIGURES 1, 2 and 3 two rapping weights or hammers 1 and 2 in the form of spheres or cylindrical heavy discs of which disc 1 is lighter than 2 are rotatably attached by arms 3 and 3, respectively, to an eccentric pivot pin 4 on a crank 5, which is itself fixed to a shaft 6 for driving the same.
  • the outer member of the divided arm 3' has a joint 7 including an elongated slot 8 where the joint is formed, permitting either or both the angular setting of the outer member and the overall length of the arm to be varied.
  • the rotating crank has lifted both weights to the point where weight 1 is just ready to fall.
  • FIGURE 2 shows the moment when the minor weight 1 has just struck the rapper bar 9.
  • FIGURE 3 shows how the further rotation of crank 5 causes the heavier weight to fall.
  • two hammers 10 and 11 are brick-like or eccentric in shape.
  • the lighter hammer 10 is composed of two lateral members as well as a hammer face 12 which can be struck by the second heavier hammer 11.
  • Hammer 11 fits into hammer 10 and against hammer face 12 both for striking and lifting the same.
  • the two sets of hammer arms 13 and 13' which are both hinged to the same pivot pin 14 will be in full alignment when viewed from the side.
  • This arrangement has the advantage that supplementary weights 10', which can be clearly seen only in FIGURE 5, can be attached to the outer sides of the lateral members of hammer 10.
  • the functions of crank 5 in FIGURES 1, 2 and 3 are performed in FIGURES 4, 5 and 6 by a strap 15 clamped to shaft 16.
  • the strap 15 could be replaced by a suitable alternative means of attachment, such as a wide lug or a tie bolt.
  • FIGURE 7 different intensity raps are generated by means of a rapper bar 17 outwardly displaceable from a center position.
  • a casing 18 encloses the rapper mechanism which comprises a spring 20 embracing the reduced end 17' of the rapper bar 17.
  • a cam member 21 which revolves together with shaft 22 has two finger-shaped extensions 23 and 24 adapted to bear consecutively against the projecting cross member 25 on rapper bar 17, the short finger, by urging the bar against the compression spring, generating a Weaker rap and the following longer finger 24, by urging the bar a greater distance and thus more strongly compressing the spring, generating a much more powerful rap.
  • the lower part 19 of the box 18 is detachable and filled with a protective liquid 26, preferably oil.
  • the described mechanism permits electrical and electromagnetic rapper elements or vibrators to be dispensed with and raps of graduated power to be generated by mechanical means for cleaning off the collecting electrode plates without whirling up dust.
  • Mechanism for rapping collecting electrode plates in electrostatic precipitators by the application of hammer raps to an end of a rapper bar engageable with said plates comprising a rapper bar, a rotary driving member, at least two tumbling hammers, said hammers being of consecutively increasing weight means mounting said hammers on the same axis eccentrically joined to said rotary driving member in such manner that rotation of the rotary driving member causes a light hammer to first hit said bar and a following heavier hammer to then hit said first light hammer so that the hammers rap the rapper bar with a series of raps each consisting of a number of raps of increasing intensity.
  • Mechanism as in claim 2 further comprising means for increasing the weight of at least one of the hammers. one of the movable arms.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrostatic Separation (AREA)
US291932A 1962-07-06 1963-07-01 Mechanism for rapping the collecting electrodes in electrostatic precipitators Expired - Lifetime US3219130A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM41833U DE1865538U (de) 1962-07-06 1962-07-06 Vorrichtung zur abklopfung von niederschlagselektroden im elektrofilter.

Publications (1)

Publication Number Publication Date
US3219130A true US3219130A (en) 1965-11-23

Family

ID=33146242

Family Applications (1)

Application Number Title Priority Date Filing Date
US291932A Expired - Lifetime US3219130A (en) 1962-07-06 1963-07-01 Mechanism for rapping the collecting electrodes in electrostatic precipitators

Country Status (4)

Country Link
US (1) US3219130A (de)
AT (1) AT242711B (de)
DE (1) DE1865538U (de)
GB (1) GB978402A (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3427787A (en) * 1968-01-12 1969-02-18 Kloeckner Humboldt Deutz Ag Device for cleaning the electrodes in an electrostatic dust separator
US3844742A (en) * 1972-02-18 1974-10-29 Smidth & Co As F L Electrode cleaning mechanism for electrostatic dust precipitator
US4036610A (en) * 1975-05-23 1977-07-19 Elex A.G. Rapping shaft drive assembly for electrostatic precipitators
US4363640A (en) * 1981-09-23 1982-12-14 Leo Avondoglio Electrostatic precipitator impactor assembly
US4671808A (en) * 1984-11-05 1987-06-09 Flakt Ab Arrangement for supporting a plurality of discharge electrodes, and a discharge electrode suited to the arrangement
US5051119A (en) * 1989-05-08 1991-09-24 Fls Miljo A/S Rapping mechanism for precipitator electrodes
US20080202077A1 (en) * 2007-02-27 2008-08-28 Snyder Robert E Assembly for ash separation from flue gas
CN110180681A (zh) * 2019-07-10 2019-08-30 海汇集团有限公司 一种静电除尘器电晕极振打传动装置
CN114669178A (zh) * 2022-03-18 2022-06-28 中铁北京工程局集团第一工程有限公司 一种隧道施工粉尘和有害气体的吸收净化系统
CN117415103A (zh) * 2023-12-18 2024-01-19 济南新峨嵋实业有限公司 一种耐火材料生产用原料预处理装置
CN120984606A (zh) * 2025-10-23 2025-11-21 淄博大亚金属科技股份有限公司 一种船用自动化焊渣清理设备

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2834526C2 (de) * 1978-08-07 1984-08-23 Metallgesellschaft Ag, 6000 Frankfurt Fallhammer für Klopfeinrichtungen in Elektroabscheidern
DE4322162C1 (de) * 1993-07-03 1994-10-06 Metallgesellschaft Ag Vorrichtung zur Übertragung von Drehmomenten auf mindestens eine in einem elektrostatischen Abscheider horizontal angeordnete Hammerwelle
AT13007U1 (de) 2010-06-18 2013-03-15 Scheuch Gmbh Elektrofilter zum reinigen staubbeladener abgase und verfahren zum abreinigen eines elektrofilters
PL423241A1 (pl) * 2017-10-23 2019-05-06 Tracz Pawel Urządzenie do strzepywania elektrod zbiorczych elektrofiltru suchego o poziomym przepływie spalin
CN115475700B (zh) * 2022-10-11 2023-05-23 河南理工大学 一种焚烧发电烟气处理设备
CN118479199B (zh) * 2024-07-15 2024-09-06 武汉什湖知音粮油食品有限公司 一种智能化防泄漏z字提升机

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US651320A (en) * 1900-01-25 1900-06-05 Chester B Albree Device for checking the rebound from impact in reciprocating apparatus.
US1115782A (en) * 1912-12-04 1914-11-03 Fritz Rudolf Christiani Device for guiding piles in pile-drivers.
US1551724A (en) * 1922-05-31 1925-09-01 Int Precipitation Co Art of electrical precipitation of suspended material from gases
DE467410C (de) * 1926-10-01 1928-10-25 Siemens Schuckertwerke Akt Ges Vorrichtung zur Erschuetterung der Elektroden elektrischer Gasreinigungsanlagen
DE469652C (de) * 1925-12-19 1928-12-18 Siemens Schuckertwerke Akt Ges Elektrische Gasreinigungsanlage
US1744802A (en) * 1926-04-29 1930-01-28 Western Electric Co Percussion device
DE496061C (de) * 1929-05-25 1930-04-14 Elga Elek Sche Gasreinigungs G Abklopfvorrichtung fuer die Elektroden elektrischer Gasreiniger
DE505795C (de) * 1930-08-25 Oski Akt Ges Verfahren zum Reinigen von Niederschlagselektroden
FR756671A (fr) * 1933-06-08 1933-12-13 Dispositif d'appareil de ciselure, traçage, gravure, sculpture et autres
US2123473A (en) * 1936-08-28 1938-07-12 Research Corp Electrode rapping
US2706618A (en) * 1953-07-28 1955-04-19 Exxon Research Engineering Co Shock pulsed rotary drill bit
US2812035A (en) * 1955-09-09 1957-11-05 Buell Engineering Company Inc Electrostatic precipitator and a collecting electrode therefor
US2864459A (en) * 1955-10-24 1958-12-16 Svenska Flaektfabriken Ab Rapping system for electrofilters
US3083081A (en) * 1961-03-10 1963-03-26 Spencer Chem Co Fertilizer granulating drum unit
US3113852A (en) * 1960-10-06 1963-12-10 Metallgesellschaft Ag Cleaning means for channel-shaped dust collecting electrodes

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE505795C (de) * 1930-08-25 Oski Akt Ges Verfahren zum Reinigen von Niederschlagselektroden
US651320A (en) * 1900-01-25 1900-06-05 Chester B Albree Device for checking the rebound from impact in reciprocating apparatus.
US1115782A (en) * 1912-12-04 1914-11-03 Fritz Rudolf Christiani Device for guiding piles in pile-drivers.
US1551724A (en) * 1922-05-31 1925-09-01 Int Precipitation Co Art of electrical precipitation of suspended material from gases
DE469652C (de) * 1925-12-19 1928-12-18 Siemens Schuckertwerke Akt Ges Elektrische Gasreinigungsanlage
US1744802A (en) * 1926-04-29 1930-01-28 Western Electric Co Percussion device
DE467410C (de) * 1926-10-01 1928-10-25 Siemens Schuckertwerke Akt Ges Vorrichtung zur Erschuetterung der Elektroden elektrischer Gasreinigungsanlagen
DE496061C (de) * 1929-05-25 1930-04-14 Elga Elek Sche Gasreinigungs G Abklopfvorrichtung fuer die Elektroden elektrischer Gasreiniger
FR756671A (fr) * 1933-06-08 1933-12-13 Dispositif d'appareil de ciselure, traçage, gravure, sculpture et autres
US2123473A (en) * 1936-08-28 1938-07-12 Research Corp Electrode rapping
US2706618A (en) * 1953-07-28 1955-04-19 Exxon Research Engineering Co Shock pulsed rotary drill bit
US2812035A (en) * 1955-09-09 1957-11-05 Buell Engineering Company Inc Electrostatic precipitator and a collecting electrode therefor
US2864459A (en) * 1955-10-24 1958-12-16 Svenska Flaektfabriken Ab Rapping system for electrofilters
US3113852A (en) * 1960-10-06 1963-12-10 Metallgesellschaft Ag Cleaning means for channel-shaped dust collecting electrodes
US3083081A (en) * 1961-03-10 1963-03-26 Spencer Chem Co Fertilizer granulating drum unit

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3427787A (en) * 1968-01-12 1969-02-18 Kloeckner Humboldt Deutz Ag Device for cleaning the electrodes in an electrostatic dust separator
US3844742A (en) * 1972-02-18 1974-10-29 Smidth & Co As F L Electrode cleaning mechanism for electrostatic dust precipitator
US4036610A (en) * 1975-05-23 1977-07-19 Elex A.G. Rapping shaft drive assembly for electrostatic precipitators
US4363640A (en) * 1981-09-23 1982-12-14 Leo Avondoglio Electrostatic precipitator impactor assembly
US4671808A (en) * 1984-11-05 1987-06-09 Flakt Ab Arrangement for supporting a plurality of discharge electrodes, and a discharge electrode suited to the arrangement
US5051119A (en) * 1989-05-08 1991-09-24 Fls Miljo A/S Rapping mechanism for precipitator electrodes
US20080202077A1 (en) * 2007-02-27 2008-08-28 Snyder Robert E Assembly for ash separation from flue gas
US7615086B2 (en) * 2007-02-27 2009-11-10 Babcock & Wilcox Power Generation Group, Inc. Assembly for ash separation from flue gas
CN110180681A (zh) * 2019-07-10 2019-08-30 海汇集团有限公司 一种静电除尘器电晕极振打传动装置
CN110180681B (zh) * 2019-07-10 2024-02-20 海汇集团有限公司 一种静电除尘器电晕极振打传动装置
CN114669178A (zh) * 2022-03-18 2022-06-28 中铁北京工程局集团第一工程有限公司 一种隧道施工粉尘和有害气体的吸收净化系统
CN114669178B (zh) * 2022-03-18 2023-11-03 中铁北京工程局集团第一工程有限公司 一种隧道施工粉尘和有害气体的吸收净化系统
CN117415103A (zh) * 2023-12-18 2024-01-19 济南新峨嵋实业有限公司 一种耐火材料生产用原料预处理装置
CN117415103B (zh) * 2023-12-18 2024-04-05 济南新峨嵋实业有限公司 一种耐火材料生产用原料预处理装置
CN120984606A (zh) * 2025-10-23 2025-11-21 淄博大亚金属科技股份有限公司 一种船用自动化焊渣清理设备

Also Published As

Publication number Publication date
AT242711B (de) 1965-10-11
GB978402A (en) 1964-12-23
DE1865538U (de) 1963-01-17

Similar Documents

Publication Publication Date Title
US3219130A (en) Mechanism for rapping the collecting electrodes in electrostatic precipitators
ES411703A1 (es) Un dispositivo precipitador electrostatico de polvo.
DE1926752A1 (de) Vorrichtung zum Abreinigen von Spruehelektroden
CN109550567A (zh) 一种高岭土原矿的粉碎分级分离装置
US3113852A (en) Cleaning means for channel-shaped dust collecting electrodes
RU2606280C2 (ru) Устройство для разрушения и уборки ледяных образований
CN217615906U (zh) 一种振打式滚筒筛结构
US2974793A (en) Rotary sizing mechanism
DE897508C (de) Brecher
US2395647A (en) Group impulsed high-frequency generator
CN105214397A (zh) 一种布袋除尘器的预除尘装置
GB821752A (en) Improvements in or relating to electrostatic precipitators
US2123473A (en) Electrode rapping
US2340179A (en) Rapper mechanism
CN101115565B (zh) 用于使电磁振动器加速的方法和设备
CA1129788A (en) Rapping apparatus for an electrostatic precipitator
US2340180A (en) Rapping device
GB593356A (en) Improvements in or relating to electrostatic precipitators
DE488570C (de) Schlaggeraet
SU1562025A1 (ru) Электрофильтр
JPS5926347B2 (ja) 電気集塵装置における槌打方法
GB869593A (en) Improvements in or relating to rapping devices for the collecting electrodes of electrostatic precipitators
SU894043A1 (ru) Устройство дл разрушени льда на дорожном покрытии
SU906826A1 (ru) Ступенчатый спуск дл сыпучих материалов
CN209630713U (zh) 一种平板滤芯的粉尘清理装置