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EP2136925B1 - Dispositif de fragmentation électrodynamique d'échantillons - Google Patents

Dispositif de fragmentation électrodynamique d'échantillons Download PDF

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Publication number
EP2136925B1
EP2136925B1 EP07710803A EP07710803A EP2136925B1 EP 2136925 B1 EP2136925 B1 EP 2136925B1 EP 07710803 A EP07710803 A EP 07710803A EP 07710803 A EP07710803 A EP 07710803A EP 2136925 B1 EP2136925 B1 EP 2136925B1
Authority
EP
European Patent Office
Prior art keywords
electrode
sample container
assembly according
insulating body
container
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
Application number
EP07710803A
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German (de)
English (en)
Other versions
EP2136925A1 (fr
Inventor
Reinhard MÜLLER-SIEBERT
Christoph Anliker
Peter HOPPÉ
Josef Singer
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.)
Selfrag AG
Original Assignee
Selfrag AG
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Publication date
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Publication of EP2136925A1 publication Critical patent/EP2136925A1/fr
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Publication of EP2136925B1 publication Critical patent/EP2136925B1/fr
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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

Definitions

  • the invention relates to an arrangement for electrodynamic fragmentation of samples according to the preamble of claim 1. Fragmentation is understood to mean the division or fragmentation of a sample into smaller fragments. Such a sample container and such an arrangement for electrodynamic fragmentation of samples can be used, for example, in the analysis of mineral samples.
  • the fragmentation of material samples by means of pulsed high-voltage discharges is characterized by a comparatively higher selectivity or selectivity.
  • the constituents of a sample can be separated better in the fragmentation or comminution process than in a mechanical fragmentation process.
  • a particularly selective fragmentation can be achieved if the high voltage breakdown by the Sample forming solid along grain boundaries and inhomogeneities in the material of the sample takes place.
  • This type of fragmentation is called electrodynamic fragmentation, in which correspondingly high field strengths or voltages are used.
  • electro-hydraulic fragmentation the fragmentation or comminution of the samples takes place by means of shock waves, which are generated during high-voltage breakdown in a dielectric fluid surrounding the sample, which is generally water.
  • Electrodynamic fragmentation generally requires higher electric field strengths than electrohydraulic fragmentation, but generally has better selectivity.
  • the accuracy required to analyze samples is typically in parts per million (ppm) or parts per million (ppt) range. Even minor contamination can therefore falsify the analysis results.
  • contamination of the samples may be due, on the one hand, to the abrasion of the tools used for fragmentation (so-called inherent contamination) and, on the other hand, to traces of previously treated samples (so-called cross-contamination) which have not been completely removed to be due. Basically, a combination of inherent contamination and cross-contamination will be expected in the known fragmentation methods.
  • a sample container and an arrangement for the electro-hydraulic fragmentation of samples are known, wherein the sample container has two oppositely disposed electrodes and is filled with a suitable liquid, generally water, and arranged in the arrangement for electro-hydraulic fragmentation.
  • the electrodes of the sample container are connected in series with two other electrodes, between which there is a gas gap.
  • the sample container is charged with voltage pulses via a single-stage capacitor discharge circuit and the gas gap.
  • the sample container may be removed from the assembly after fragmentation of samples in the sample container and disposed of after removal of the fragmented samples.
  • the sample container comprises an insulating body and a first and a second electrode.
  • the first and the second electrode each protrude into the sample container and are connected to one another via the insulating body.
  • the sample container is with a filled dielectric fluid, wherein the first electrode is associated with a gas collecting space, which may also be referred to as gas plenum.
  • the first electrode is preferably arranged on top, while the second electrode is preferably arranged opposite the first electrode opposite to the bottom.
  • gas typically forms in the interior of the sample container in the form of gas bubbles, the gas bubbles usually accumulating on the upper inside of the sample container. Due to the occurring in the fragmentation by pulsed high-voltage discharges electric fields that occur also on the upper inside of the sample container, it may be due to the accumulating gas bubbles there to undesirable sliding discharges along the inner sample container walls or sides and / or high voltage breakdowns or maximum voltage flashovers along the inner and / or outer sides or walls of the sample container come. This can lead to a shortening of the life of the sample container and to its destruction or to its structural failure.
  • the sample container has a gas collection space in which the gas generated during fragmentation by pulsed high-voltage discharges can collect.
  • the gas collecting space is preferably located in a substantially field-free space during operation in the field discharge, so that the gas or the gas bubbles can cause no sliding discharges or high voltage breakdowns or high voltage flashovers.
  • Optionally present or released in the fragmentation and collected in the gas collection chamber gas can be removed from the sample container - as well as the fragmented samples - for analysis purposes.
  • the sample container advantageously forms an independent element, so that for the fragmentation of each sample or each sample material own sample container can be used. In this way, it is possible to avoid cross-contamination, which can be caused by using the same sample container for the fragmentation of different samples. After removal of the fragmented samples and / or the gas collected in the gas collection chamber, the sample container may be discarded.
  • the inventive arrangement for the electrodynamic fragmentation of samples comprises a process container, a sample container and means for connecting the first and the second electrode of the sample container to a high voltage source, in particular a high voltage pulse generator.
  • the process container is filled with a dielectric liquid and the sample container is disposed within the process container in the dielectric liquid.
  • a dielectric fluid which is in particular water, is located both on the inside of the sample container and on the outside of the sample container.
  • the sample container is insulated in its interior and in the outer space surrounding the sample container against surface sliding discharges.
  • the arrangement and the sample container can be operated with pulse voltages of up to 300 kV, with which a breakdown (so-called solid-state breakdown) can be achieved by samples with dimensions of up to a few centimeters, resulting in a high selective comminution of the samples.
  • a field-shaping body is arranged in the process container, which surrounds the sample container like a coat.
  • FIG. 1 shows a cross section through part of a first embodiment of an inventive arrangement 1, in which a first embodiment of a sample container 2 is arranged.
  • the sample container 2 comprises a first, upper electrode 3 and a second, lower electrode 4.
  • the sample container 2 is filled with a dielectric liquid 5, in particular water.
  • the upper, first electrode 3 is associated with a gas collection chamber 6, which preferably encloses the area of the first electrode 3 protruding into the sample container 2 in an annular manner such that the end region 7 of the first electrode 3 is arranged in the dielectric liquid 5. In the gas collecting space 6, the electric field prevailing during the fragmentation process is very small.
  • the first electrode 3 preferably projects further into the sample container 2 than the second electrode 4.
  • the end region 7 of the first electrode 3 protruding into the sample container 2 is preferably at least partially conically tapered and preferably has a centrally arranged projection 9.
  • the protruding into the sample container 2 end portion 8 of the second electrode 4 is preferably designed spherical segment.
  • the sample container 2 has an insulating body 10, which connects the first electrode 3 and the second electrode 4 with each other.
  • the insulating body 10 is preferably designed as a hollow cylinder.
  • the insulating body 10 is, in particular at its end portions 11, 12, preferably made of flexible material.
  • the end regions 11, 12 of the insulating body 10 are in contact with sealing surfaces 13, 14 of the first and second electrodes 3, 4, which preferably widen conically outwards in each case.
  • the end portion 12 is guided over the sealing surface 14 of the second electrode 4 and in this case preferably by the conical configuration of the sealing surface 14 to the outside conically widened so that a clamping connection between the end portion 12 and the sealing surface 14 is formed.
  • the clamping rings 15 are provided on their respective inner side with clamping grooves 18, so that sliding down or sliding down of the insulating 10 of a sealing surface 13, 14 of the electrodes 3, 4 during the fragmentation of a sample can be prevented.
  • the clamping grooves 18 may also be referred to as retaining grooves or barb grooves. Open areas on the walls or sides and / or the end faces of the sample container 2, which can cause a high electric field elevation and thus a flashover over the surface of the insulating body 10, which would result in destruction of the insulating body 10 and thus of the sample container 2 , can be avoided in this way.
  • the wall of the insulating body 10 preferably extends as straight as possible and perpendicular to the potential or electric field lines 19 occurring during operation (cf. FIG. 2 ).
  • the clamping rings 15 are preferably shaped such that the potential lines 19 and the electric field lines are substantially perpendicular to the wall of the insulating body 10.
  • the first electrode 3 is preferably configured such that a first, upper triple point 20, which is located between the first electrode 3, the insulating body 10 and the dielectric liquid 5, electrically is relieved, so that at the upper triple point 20 substantially no electron emission occurs, which could lead to a flashover over the surface of the insulating body 10 and thus to a destruction of the insulating body 10.
  • the protruding into the sample container 2 end portion 7 of the first electrode 3 is preferably designed to taper conically and in particular centrally provided with the projection 9 (see FIG. 2 ).
  • the second electrode 4 is preferably designed such that a second, lower triple point 21, which is arranged between the lower electrode 4, the insulating body 10 and the dielectric liquid 5, is electrically relieved, so that even at the lower triple point 21 substantially none Electron emission may occur, which could lead to a flashover over the surface of the insulating body 10.
  • the end region 8 of the second electrode 4 is preferably configured in the manner of a spherical segment (see FIG. 2 ).
  • a field-shaping body 47 is provided between the outer wall of the sample container 2 and the inner wall of the process container 22. The field-shaping body 47 and its function will be described in detail below with reference to FIGS FIGS. 3 to 5 described.
  • the gas collecting space 6 associated with the first electrode 3 serves to collect gas or gas volume arising during the fragmentation process, namely at a distance from the inner surface of the insulating body 10 and thus likewise spaced from the upper triple point 20.
  • the electrical current prevailing during the fragmentation process can be increased Fields, in particular the electrical fields prevailing at the upper triple point 20, are substantially not affected by the gas generated, so that high-voltage flashovers on the wall of the insulating body 10 can be avoided.
  • the material of the insulating body 10 comprises or the insulating body 10 is made of PE (polyethylene), which is characterized by a high dielectric strength, preferably of LDPE (low density polyethylene), which is characterized by a high ductility.
  • the wall thickness of the insulating body 10 is preferably 1 mm. It can thus be ensured that the insulating body 10 and thus the sample container 2 can withstand the forces occurring during the fragmentation process or that the walls of the insulating body 10 can absorb these forces without damage.
  • the simple geometry of the insulating body 10 allows cost-effective production, which is particularly advantageous because the sample container 2 and / or the insulating body 10 can be replaced after each fragmentation of a sample to avoid cross-contamination and / or safety reasons due to possible structural fatigue.
  • the sample container 2 is arranged in a process container 22 of the arrangement 1 for fragmentation of samples.
  • the lower, second electrode 4 is in this case arranged on a bottom 24 of the process container 22, the bottom 24 preferably having means 25 for receiving the lower, second electrode 4 in the form of a raised portion 25 for receiving a bottom recess 26 of the lower, second electrode 4 , In this way, a lateral slippage of the second, lower electrode 4, which could lead to a sliding down of the insulating body 10 from the sealing surfaces 13 and 14, can be prevented. A sliding down of the insulating body 10 from the sealing surfaces 13, 14 would lead to destruction of the insulating body 10 and thus of the sample container 2.
  • the process container 22 is associated with a high voltage electrode 27 which is in communication with the first electrode 3.
  • the high voltage electrode 27 is preferably associated with a high voltage insulator 45, which surrounds this annular.
  • the high-voltage electrode 27 preferably surrounds a fixing body 28 in an annular manner.
  • the fixing body 28 may be, for example to act a fixing screw which is screwed into the high voltage electrode 27.
  • the first electrode 3 preferably has an outer annular edge 29, which encloses the fixing body 28 in the state contacting the high voltage electrode 27.
  • FIG. 1 1 for fragmentation of samples and the sample container 2 shown can be fragmented even the smallest samples weighing less than 4 grams, without causing the destruction of the sample container 2 and a consequent loss of sample material.
  • the Indian FIG. 1 Sample container 2 shown can therefore also be referred to as a small sample capsule.
  • FIG. 3 shows a second embodiment of an inventive arrangement 31 for fragmentation of samples with a second embodiment of a sample container according to the invention 32, which comprises an insulating body 50.
  • a first, upper electrode 33 and a second, lower electrode 34 are arranged in the sample container 32.
  • the first electrode 33 and the second electrode 34 are preferably each integrated in a short side of the sample container 32.
  • the sample container 32 is filled with a dielectric liquid 35, in particular with water.
  • the dielectric liquid 35 at least partially covers an end portion 37 of the first electrode 33 which is designed as a pin, the end region 37 protruding into the sample container 32.
  • a gas collection chamber 36 provided for collecting and collecting gas bubbles generated during fragmentation.
  • Sample material 32 to be fragmented or samples 38 to be fragmented are introduced into the sample container 32. After the introduction of the samples 38 into the sample container 32, it is filled with the dielectric liquid 35, in particular avoiding gas inclusions. Thereafter, the first electrode 33 and the second electrode 34, which are discharge electrodes, are connected to terminal electrodes 39, 40 of the process container 41 and connected thereto to a high-voltage pulse generator 42.
  • the connection of the first electrode 33 and the second electrode 34, each with a connection electrode 39, 40 is preferably carried out in each case via a contact 43, which may in particular be a resilient contact strip.
  • the lower, second electrode 34 preferably represents a ground electrode, which is connected to a connection electrode 40, which is formed by the housing 44 of the process container 41.
  • the upper connection electrode 39 which is connected to the first, upper electrode 33, is arranged, preferably centrally, in the process container 31 and has an electrode rod 39.1 and an electrode basin 39.2, which receives the first electrode 33, wherein the unspecified edges of the electrode basin 39.2 are connected via the contact 43 with the first electrode 33.
  • the electrode basin 39.2 is connected to the high-voltage pulse generator 42 via the electrode rod 39.1.
  • the connection electrode 39 formed from electrode rod 39.1 and electrode basin 39.2 is preferably formed in one piece.
  • the electrode rod 39.1 is preferably surrounded by a high-voltage insulator 45 in an annular manner.
  • the electrode basin 39.2 has the function of a field relief.
  • the gas collection chamber 36 is advantageously arranged in a substantially field-free space within the field relief, so that the gas collected in the gas collection chamber 36 has substantially no effect on the high-voltage breakdown generated in the fragmentation.
  • the gas collection chamber 36 is preferably arranged inside the electrode basin 39.
  • the process container is filled with a dielectric liquid 46, which is preferably water, wherein the sample container 32 arranged in the process container 41 is completely surrounded by the dielectric liquid 46.
  • a dielectric liquid 46 which is preferably water
  • the dielectric fluids 35 and 46 also other dielectric fluids than water into consideration.
  • the first, upper electrode 33 is preferably designed such that a triple point 20, which is located between the first electrode 33, the insulating body 50 and the gas collecting space 36, is electrically relieved, so that substantially no electron emission occurs at the triple point 20. Such an electron emission could lead to a flashover over the surface of the insulating body 50 and thus to a destruction of the insulating body 50.
  • the second, lower electrode 34 is preferably configured such that a triple point 21, which is located between the second electrode 34, the insulating body 50 and the dielectric liquid 35, is electrically relieved so that essentially no electron emission occurs at the triple point 21.
  • a field shaping body 47 is arranged, which surrounds the sample container 32 like a coat.
  • the field-shaping body 47 is thus provided between the inner wall of the housing 44 of the process container 41 and the outer wall of the sample container 32.
  • the material of the field forming body 47 or the field forming body 47 is made of plastic, in particular HDPE (high density polyethylene).
  • HDPE high density polyethylene
  • the field shaping body 47 can withstand high loads in the form of voltage pulses without being destroyed.
  • the field-shaping body 47 expands preferably conically in order to pass into a section with a larger inner diameter which is not described in more detail. By increasing the inner diameter of the field shaping body upwards space is created for receiving the high voltage insulator 45 and the electrode basin 39.2.
  • the electric fields generated during the fragmentation are influenced or controlled in such a way that essentially no impermissibly high electric field strengths, which could lead to destruction of the sample container 32 and / or the process container 41, along the inner or the outer wall of the sample container 32 and the insulator 50 may occur.
  • FIG. 4 shows the course of the electric field lines 48 in a section of the process container 41 seen from the viewer with arranged in this sample container 32.
  • No field forming body is provided, wherein in the FIG. 4a the distance between the outer wall of the sample container 32 and the inner wall of the process container 41 is selected substantially smaller than in the FIG. 4b ,
  • the respective field lines 38 extend over a relatively long distance within the wall of the insulating body 50 and the sample container 32.
  • the field lines 38 are close to each other, which is indicative of an electric field boost.
  • a field-shaping body 47 is provided in the Figure 4c between the outer wall of the sample container 32 and the inner wall of the process container 41. This has the effect that the field lines compared with the FIGS. 4a and 4b only over extend short distances through the wall of the insulating body 50 and the sample container 32, further apart and thus less burden on them.
  • pulsed, high-current high-voltage discharges are generated between the first electrode 33 and the second electrode 34 by means of the high-voltage pulse generator 42 for fragmenting the samples 38.
  • the high voltage pulse generator 42 voltage pulses with a pulse duration of up to a few microseconds at voltage peaks of several 100 kV, in particular of up to 300 kV, and currents of up to 10 kA can be generated.
  • the sample material 38 is fragmented and the sample container 32 can be separated from the terminal electrodes 39, 40 of the high voltage pulse generator 42 separated and unopened the assembly 31 are removed. If the sample container 32 was completely cleaned or unused and new prior to fragmentation, after fragmentation it may contain only solid, liquid and / or gaseous constituents of the fragmented sample material that has been fragmented in the last application of the sample container.
  • the sample container 32 can thus contain only such contaminants that have arisen during fragmentation, for example due to abrasion of the material of the first and the second electrode 33, 34 and the insulating body 50 (so-called inherent contamination).
  • This inherent contamination can in principle be influenced and minimized by a suitable choice of the material of the first and second electrodes 33, 34 and with respect to the quantity of contaminants by a suitable choice of the discharge parameters of the high voltage pulse generator 42.
  • the discharge parameters of the high voltage pulse generator 42 are given for example by the duration of the current / voltage pulses, the height of the voltage peaks and the current levels. Cross-contamination by previously fragmented samples can advantageously not occur with a single or completely purified use of the sample container 32.
  • New or completely cleaned first and second electrodes 33, 34 are preferably used in each case for the fragmentation of new samples. It is further assumed that the sample container 32 withstands the load peaks due to the high voltage discharges and remains sealed so that no material exchange between the sample container 32 and the process container 41 can take place. To ensure that the sample container 32 or the insulating body 50 of the sample container 32 withstands the load peaks and remains tight, it preferably contains or preferably consists of polyethylene, in particular of LDPE (low density polyethylene).
  • LDPE low density polyethylene
  • the distance between the mutually facing surfaces of the first and second electrodes 33, 34 is preferably up to a few centimeters.
  • the sample container 32 preferably has a volume of between 0.25 and 0.5 liters and is used as a disposable sample container. It is preferably designed in such a way that it reduces the pulse loads occurring during fragmentation with respect to the high voltage to be isolated of up to several 100 kV, in particular up to 300 kV, the high current intensities occurring here, in particular of up to 10 kA, can withstand the high power associated therewith, in particular up to 100 megawatts, and the resulting pressure spikes within the sample container 32 for a given number of high voltage pulses in the electrodynamic fragmentation, so that the sample material 38 can be selectively fragmented.
  • the sample container 32 and the arrangement 31 are designed according to the invention such that they the in the in the sample container 32 located dielectric liquid 35 caused by the high voltage discharges shock waves occurring in the unspecified wall of the sample container 32 and the insulator 50 high electric field strengths occurring in the field shaping body 47 high electric field strengths and the impact or the effect of components of the sample material, which strike during the fragmentation on the wall of the sample container 32 and the insulator 50, during a certain number of high-voltage pulses can withstand without the sample container 32 and the assembly 31 are destroyed or damaged.
  • This is achieved in particular by the configuration of the sample container 32, the provision and the configuration of the field shaping body 47 and the provision of dielectric fluids 35 and 46 both in the sample container 32 and in the process container 41 of the arrangement 31.
  • the sample container 32 and the arrangement 31 according to the invention can be used during 300 high-voltage pulses or loaded with up to 300 high-voltage pulses.
  • FIG. 5 shows a cross section of a portion of an assembly 31 with a process container 41 and a sample container 32, which surrounds a field forming body 47, as shown in the FIG. 3 is shown schematically.
  • the process container 32 comprises an insulating body 50 having a bottom 51.
  • the insulating body 50 is preferably associated with a lid 52.
  • the material of the sample container 32 or of the insulating body 50 which is preferably LDPE (low density polyethylene) or which preferably comprises LDPE, additionally serves as a sealing material.
  • LDPE low density polyethylene
  • LDPE low density polyethylene
  • the sample container 32 can be used as the sample container 32.
  • the field shaping body 47 and the first and second electrodes 33, 34 can be used easily manufactured rotary parts. Additional smoothing of the surface of commercially available wide-mouth bottles can lead to a further increase in the seal.
  • an upper, unspecified cover-side region of the first, upper electrode 33 and / or a lower, unspecified bottom-side region of the second, lower electrode 34 preferably have sealing grooves 53, in particular during Insertion of the first electrode 33 in the lid 52 or when introducing the second electrode 34 in the bottom 51 of the insulating body 50, preferably by forming during clamping, are generated. Further, when the first electrode 33 is introduced, sealing beads, which are not described in greater detail, are formed in an electrode-side region of the bottom 51 of the insulating body 50 in an electrode-side region of the cover 52 and / or when the second electrode 34 is inserted.
  • cover-side end portion of the insulating body 50 and / or the isolier emotions lake side of the lid 52 support rings 54, 55 are assigned in the form of an inner piece ring 54 and an outer support ring 55 for further improvement of the seal.
  • the inner support ring 54 is preferably provided within a lid groove, while the outer support ring 55 is disposed on the outer side or surface of the end portion of the insulating body 50. If a wide-mouth bottle or another bottle is used as the insulating body 50, then the outer support ring 55 is arranged on the outside of the bottle neck.
  • preferably means 57 are provided for receiving the second electrode 34, which are preferably configured as a recess 57.
  • the sample container 32 can be selectively fragmented at pulse voltages of up to 300 kV samples with dimensions in the range of up to a few centimeters, without the sample container 32 or the insulating body 50 would be destroyed by the pulse loads.
  • the life of the sample container 32 and the insulator 50 is increased by providing dielectric liquid on the inside and on the outside of the sample container 32, and by providing a field-shaping body 47 and a gas collecting space 36.
  • sample container 32 As a disposable sample container whose components such as the support rings 54, 55, the insulating body 50 and the first and second electrodes 33, 34 are designed simple and inexpensive.
  • FIG. 1 illustrated first embodiment of the inventive arrangement 1 with the in the Figures 3 . 5 illustrated second embodiment of the sample container 32 or in FIG. 3 . 5 illustrated second embodiment of the inventive arrangement 31 with the in the FIG. 1 illustrated first embodiment of the sample container 2 are combined.
  • the features of the first and the second embodiment of the inventive arrangement or the first and second embodiments of the sample container can be combined.

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  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Electrotherapy Devices (AREA)

Claims (17)

  1. Arrangement pour la fragmentation d'échantillons (38) avec un réservoir de traitement (22; 41), avec un réservoir d'échantillons (2; 32) avec un corps isolant (10; 50) et une première (3; 33) et une deuxième (4; 34) électrode, la première (3; 33) et la deuxième (4; 34) électrode faisant saillie dans le réservoir d'échantillons (2; 32) et la première (3; 33) et la deuxième (4; 34) électrode étant couplées par le corps isolant (10; 50), le réservoir d'échantillons (2; 32) étant rempli d'un liquide diélectrique (5; 35) et un espace d'accumulation de gaz (6; 36) étant attribué à la première électrode (3; 33), et avec des moyens (24, 27; 39, 39.1, 39.2, 40, 43) de raccordement de la première (3; 33) et de la deuxième (4; 34) électrode du réservoir d'échantillons (2; 32) avec une source de haute tension (42), caractérisé en ce que le réservoir de traitement (22; 41) est rempli d'un liquide diélectrique (46) et le réservoir d'échantillon (2; 32) est arrangé à l'intérieur du réservoir de traitement (22; 41) dans le liquide diélectrique (46).
  2. Arrangement selon la revendication 1, caractérisé en ce qu'un corps de configuration de champ (47) est arrangé à l'intérieur du réservoir de traitement (41), entourant le réservoir d'échantillons (2; 32) comme un manteau.
  3. Arrangement selon la revendication 2, caractérisé en ce que le matériau du corps de configuration de champ (47) comprend du HDPE.
  4. Arrangement selon l'une des revendications 1 à 3, caractérisé en ce que le réservoir de traitement (22; 41) a un fond (24; 56) auquel la deuxième électrode (4; 34) du réservoir d'échantillon (2; 32) est arrangée, et en ce que le fond (24; 56) a des moyens (25; 57), particulièrement une élévation (25) ou une cavité (57), pour la réception de la deuxième électrode (4; 34).
  5. Arrangement selon l'une des revendications 1 à 4, caractérisé en ce qu'un corps de fixation (28) est prévu, étant forme de sorte qu'il maintient la première électrode (3) dans sa position.
  6. Arrangement selon la revendication 1, caractérisé en ce que l'extrémité (7; 37) de la première électrode (3; 33) qui fait saillie dans le réservoir d'échantillons (2; 32) est exécutée de sorte qu'elle s'amincisse au moins partiellement de manière conique et/ou en ce que l'extrémité (8) de la deuxième électrode (4; 34) qui fait saillie dans le réservoir, d'échantillons (2; 32) est exécutée en forme de calotte sphérique.
  7. Arrangement selon la revendication 1, caractérisé en ce que la première électrode (3; 33) avance plus loin à l'intérieur du réservoir d'échantillons que la deuxième électrode (4; 34).
  8. Arrangement selon la revendication 1, caractérisé en ce que l'extrémité (7) de la première électrode (3) faisant saillie à l'intérieur le réservoir d'échantillons (2) a une saillie (9) arrangée au milieu.
  9. Arrangement selon la revendication 1, caractérisé en ce que le réservoir d'échantillons (32) a un couvercle (52) et en ce que le corps isolant (50) a un fond (51).
  10. Arrangement selon la revendication 9, caractérisé en ce que le réservoir d'échantillons (32) est formé de sorte qu'au moins une bague de support (54; 55) est attribuée à l'extrémité du côté couvercle du corps isolant (50) et/ou du côté corps isolant du couvercle (52).
  11. Arrangement selon la revendication 9 ou 10, caractérisé en ce que le réservoir d'échantillons (32) est formé de sorte qu'une zone du côté couvercle de la première électrode (33) et/ou une zone au fond de la deuxième électrode (34) ont des bourrelets de serrage (53).
  12. Arrangement selon la revendication 1, caractérisé en ce que le corps isolant (10; 50) est exécuté en forme de cylindre creux.
  13. Arrangement selon la revendication 12, caractérisé en ce que le réservoir d'échantillon (2) est formé de sorte que la première électrode (3) et la deuxième électrode (4) soient connectées chacune à une extrémité (11, 12) du corps isolant (10) à l'aide une bague de serrage (15).
  14. Arrangement selon la revendication 13, caractérisé en ce que les bagues de serrage (15) ont des rainures de serrage (18).
  15. Arrangement selon l'une des revendications 12 à 14, caractérisé en ce que le réservoir d'échantillons (2) est formé de sorte que la première (3) et/ou la deuxième (4) électrode ont une surface de serrage (13, 14), qui s'élargit de forme conique vers l'extérieur et qui est en contact avec une extrémité (11, 12), qui s'élargit en forme conique vers l'extérieur du corps isolant (10).
  16. Arrangement selon la revendication 1, caractérisé en ce que l'extrémité de la deuxième électrode (4), qui fait saillie du réservoir d'échantillons (2), a une cavité (26).
  17. Arrangement selon la revendication 1, caractérisé en ce que le matériau du corps isolant (10; 50) comprend du polyéthylène, particulièrement du LDPE.
EP07710803A 2007-03-16 2007-03-16 Dispositif de fragmentation électrodynamique d'échantillons Active EP2136925B1 (fr)

Applications Claiming Priority (1)

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PCT/CH2007/000144 WO2008113189A1 (fr) 2007-03-16 2007-03-16 Récipient d'échantillons et dispositif de fragmentation électrodynamique d'échantillons

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EP2136925B1 true EP2136925B1 (fr) 2011-12-21

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AU (1) AU2007349730B2 (fr)
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ES (1) ES2378484T3 (fr)
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WO (1) WO2008113189A1 (fr)

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WO2013060403A1 (fr) * 2011-10-26 2013-05-02 Adensis Gmbh Procédé et dispositif de décomposition d'un article à recycler
WO2014029034A1 (fr) * 2012-08-24 2014-02-27 Selfrag Ag Procédé et dispositif de fragmentation et/ou d'affaiblissement de matériau au moyen d'impulsions à haute tension
WO2014037433A1 (fr) 2012-09-05 2014-03-13 Walder Ingar F Procédé de lixiviation de minéraux
US9868653B2 (en) * 2013-05-01 2018-01-16 Nch Corporation System and method for treating water systems with high voltage discharge and ozone
US9932252B2 (en) 2013-05-01 2018-04-03 Nch Corporation System and method for treating water systems with high voltage discharge and ozone
RU2569007C1 (ru) * 2014-07-18 2015-11-20 Федеральное государственное бюджетное учреждение науки Институт электрофизики Уральского отделения Российской академии наук (ИЭФ УрО РАН) Способ и установка для селективной дезинтеграции твердых материалов
CA2976964C (fr) * 2015-02-27 2023-05-23 Selfrag Ag Procede et dispositif de fragmentation et / ou d'affaiblissement d'un materiau coulant au moyen de decharges a haute tension
JP6947126B2 (ja) * 2018-06-12 2021-10-13 株式会社Sumco シリコンロッドの破砕方法及び装置並びにシリコン塊の製造方法
EP3851183A1 (fr) 2020-01-17 2021-07-21 Evonik Operations GmbH Corps composite et son utilisation en nanofiltration organophile
DE102021205637A1 (de) * 2021-06-02 2022-12-08 Impulstec Gmbh Verfahren zur recyclingtechnischen Aufbereitung eines Werkstücks aus galvanisierten Kunststoff
CN117460815A (zh) 2021-06-11 2024-01-26 赢创运营有限公司 细胞裂解方法

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SU1708314A1 (ru) * 1987-12-30 1992-01-30 Предприятие П/Я А-7094 Подводный разр дник дл дроблени конкрементов
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FR2833192B1 (fr) * 2001-12-11 2004-08-06 Commissariat Energie Atomique Procede de broyage d'une matiere carbonee conductrice par application d'impulsions haute-tension en milieu liquide
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US8138952B2 (en) 2012-03-20
EP2136925A1 (fr) 2009-12-30
WO2008113189A1 (fr) 2008-09-25
ES2378484T3 (es) 2012-04-13
RU2422207C2 (ru) 2011-06-27
ATE537903T1 (de) 2012-01-15
JP2010521682A (ja) 2010-06-24
AU2007349730B2 (en) 2011-08-25
US20100025240A1 (en) 2010-02-04
CA2680667C (fr) 2014-03-11
JP4914506B2 (ja) 2012-04-11
AU2007349730A1 (en) 2008-09-25
DK2136925T3 (da) 2012-04-16
RU2009134499A (ru) 2011-03-20
CA2680667A1 (fr) 2008-09-25

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