IE35884L - Electrohdraulic crushing apparatus - Google Patents
Electrohdraulic crushing apparatusInfo
- Publication number
- IE35884L IE35884L IE711563A IE156371A IE35884L IE 35884 L IE35884 L IE 35884L IE 711563 A IE711563 A IE 711563A IE 156371 A IE156371 A IE 156371A IE 35884 L IE35884 L IE 35884L
- Authority
- IE
- Ireland
- Prior art keywords
- range
- gap
- cycle
- terminates
- transformer
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/18—Use of auxiliary physical effects, e.g. ultrasonics, irradiation, for disintegrating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/18—Use of auxiliary physical effects, e.g. ultrasonics, irradiation, for disintegrating
- B02C2019/183—Crushing by discharge of high electrical energy
Abstract
One form of electrohydraulic crushing apparatus comprises a liquid-immersed spark-gap across which is connected a first capacitor pulse-charged by repetitively discharging a second capacitor through the primary winding of a step-up pulse-transformer, the two capacitors being matched in value as reflected by the transformer ratio. In order to maintain the breakdown voltage close to peak value despite erosion of the gap electrodes, the present invention checks that each first half-cycle of current in the transformer primary winding terminates within a predetermined time-range after the start of the half-cycle. If it terminates outside this time-range, electromechanical means are controlled to adjust the electrode gap-width so that the half-cycle terminates within this range. Because of statistical variations in the breakdown voltage, it is arranged that a substantial number of half-cycles must terminate outside the predetermined time-range before the gap-width is adjusted.
[US3749958A]
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB6188470 | 1970-12-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
IE35884L true IE35884L (en) | 1972-06-30 |
IE35884B1 IE35884B1 (en) | 1976-06-23 |
Family
ID=10487594
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IE1563/71A IE35884B1 (en) | 1970-12-30 | 1971-12-09 | Improvements in or relating to electrohydraulic crushing apparatus |
Country Status (5)
Country | Link |
---|---|
US (1) | US3749958A (en) |
GB (1) | GB1350600A (en) |
IE (1) | IE35884B1 (en) |
SE (1) | SE369041B (en) |
ZA (1) | ZA718297B (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2120579B (en) * | 1982-05-21 | 1985-07-10 | De Beers Ind Diamond | Method and apparatus for crushing materials such as minerals |
RU2081259C1 (en) * | 1995-02-22 | 1997-06-10 | Научно-исследовательский институт высоких напряжений при Томском политехническом университете | Method for making pieces of substandard reinforced concrete |
DE10302867B3 (en) * | 2003-01-25 | 2004-04-08 | Forschungszentrum Karlsruhe Gmbh | Computer-assisted process guidance method for arc discharge fragmentation plant, using comparison of electrical operating parameters with required values |
DE10346650A1 (en) * | 2003-10-08 | 2005-05-19 | Forschungszentrum Karlsruhe Gmbh | Process reactor and operating method for electrodynamic fragmentation |
CN102959845B (en) * | 2010-05-10 | 2015-08-26 | 恩菲斯能源公司 | The method of operation DC-DC converter |
RU2674075C1 (en) * | 2018-01-26 | 2018-12-04 | Общество с ограниченной ответственностью "Проектинтертехника" | Electro-hydrodynamical grinding chamber |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2809319A (en) * | 1955-10-31 | 1957-10-08 | British Thomson Houston Co Ltd | Electric arc furnaces |
US3200285A (en) * | 1961-08-31 | 1965-08-10 | Strong Electric Corp | Motor control |
US3209060A (en) * | 1963-06-12 | 1965-09-28 | Westinghouse Electric Corp | Electrical apparatus |
US3234429A (en) * | 1963-11-13 | 1966-02-08 | Gen Electric | Electrical circuit for electrohydraulic systems |
BE659375A (en) * | 1964-02-06 |
-
1970
- 1970-12-30 GB GB6188470A patent/GB1350600A/en not_active Expired
-
1971
- 1971-12-09 IE IE1563/71A patent/IE35884B1/en unknown
- 1971-12-10 ZA ZA718297A patent/ZA718297B/en unknown
- 1971-12-10 US US00206748A patent/US3749958A/en not_active Expired - Lifetime
- 1971-12-29 SE SE16840/71A patent/SE369041B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
ZA718297B (en) | 1972-09-27 |
IE35884B1 (en) | 1976-06-23 |
GB1350600A (en) | 1974-04-18 |
SE369041B (en) | 1974-08-05 |
US3749958A (en) | 1973-07-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2405069A (en) | Pulse generating system | |
US2405070A (en) | Square wave pulse generating system | |
GB1087933A (en) | Improvements in or relating to electrical pulse generators | |
IE35884L (en) | Electrohdraulic crushing apparatus | |
US2417489A (en) | Spectroscopic source unit | |
GB1047730A (en) | Improvements in electrical circuits for electrohydraulic systems | |
GB959150A (en) | Plasma generator | |
DE2809419A1 (en) | TRIGGER CIRCUIT FOR OPERATING AN ARC DISCHARGE FLASH LAMP | |
GB1374930A (en) | Method of and apparatus for flash discharge | |
US3735195A (en) | Spark-discharge apparatus for electrohydraulic crushing | |
US3950693A (en) | Ignition apparatus for thyristors | |
US2818527A (en) | Pulse forming network discharge switch | |
US4663568A (en) | Multichannel or spark gap switch triggered by saturable inductor induced voltage pulse | |
US3673423A (en) | Electronic high frequency pulse generator | |
GB1331997A (en) | Apparatus for the corona discharge treatment of plastics | |
SU343645A1 (en) | Nanosecond pulse generator | |
US3346762A (en) | Spark gaps | |
SU852135A1 (en) | Generator of powerful manosecond pulses | |
SU989637A1 (en) | Controllable discharger | |
RU1824653C (en) | Method for raising insulation electric strength of high-voltage devices with liquid dielectric | |
US3058033A (en) | Apparatus for starting and operating arc lamps | |
GB717755A (en) | Improvements in and relating to ignition systems | |
SU382170A1 (en) | HIGH FREQUENCY SPARK ION source | |
SU540361A1 (en) | High-speed switching device | |
SU503329A1 (en) | Controllable spark |