EP3261769A1 - Verfahren und vorrichtung zur fragmentierung und/oder schwächung von schüttfähigem material mittels hochspannungsentladungen - Google Patents
Verfahren und vorrichtung zur fragmentierung und/oder schwächung von schüttfähigem material mittels hochspannungsentladungenInfo
- Publication number
- EP3261769A1 EP3261769A1 EP16707373.3A EP16707373A EP3261769A1 EP 3261769 A1 EP3261769 A1 EP 3261769A1 EP 16707373 A EP16707373 A EP 16707373A EP 3261769 A1 EP3261769 A1 EP 3261769A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- electrode assembly
- conveyor belt
- electrode
- material flow
- electrodes
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 title claims abstract description 243
- 238000000034 method Methods 0.000 title claims abstract description 101
- 230000003313 weakening effect Effects 0.000 title claims description 16
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 230000015556 catabolic process Effects 0.000 claims description 41
- 238000013467 fragmentation Methods 0.000 claims description 15
- 238000006062 fragmentation reaction Methods 0.000 claims description 15
- 239000007769 metal material Substances 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 6
- 238000012216 screening Methods 0.000 claims description 6
- 239000002893 slag Substances 0.000 claims description 6
- 238000004056 waste incineration Methods 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 4
- 230000005294 ferromagnetic effect Effects 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 150000002739 metals Chemical class 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000011437 continuous method Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 230000008901 benefit Effects 0.000 description 10
- 241000196324 Embryophyta Species 0.000 description 7
- 239000013590 bulk material Substances 0.000 description 3
- 238000010924 continuous production Methods 0.000 description 3
- 239000012634 fragment Substances 0.000 description 3
- 235000010678 Paulownia tomentosa Nutrition 0.000 description 2
- 240000002834 Paulownia tomentosa Species 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
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
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/02—Feeding devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
- B02C23/36—Adding fluid, other than for crushing or disintegrating by fluid energy the crushing or disintegrating zone being submerged in liquid
-
- 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 a method for fragmenting and / or weakening pourable material by means of high-voltage discharges, a device for carrying out the method, a system comprising a plurality of such devices and a use of the device or system according to the preambles of the independent claims.
- the fragmentation and / or weakening of the material is erroneous. Batch operation in a closed process vessel in which high-voltage breakdowns are generated by the material.
- the fragmentation and / or weakening of the material takes place in a continuous process, by passing a stream of material from the material to be comminuted past one or more electrodes and using these high-voltage can be produced by the material.
- the material is transported past the electrodes either by gravity or by means of a conveyor which simultaneously serves as a counter electrode to one or more high voltage electrodes.
- the problem arises that the material flow or the residence time of the material in the process zone is only very limited adjustable and strongly depends on the piece size of the materials.
- the decisive disadvantage arises that very expensive, at least in the process zone electrically conductive conveyors are needed, which are expensive and also subject to heavy wear.
- a first aspect of the invention relates to a method for fragmenting and / or weakening pourable material, in particular slag from waste incineration, by means of high-voltage discharges "
- the high-voltage electrodes and the counterelectrodes assigned to them are immersed in the process liquid from above, and those of these electrodes between which the high-voltage breakdowns are produced face each other transversely to the material advancing direction with an electrode spacing.
- the high-voltage electrodes and the counterelectrodes, between which the high-voltage breakdowns are generated are in contact with the material flow.
- one or the other embodiment may be more preferable.
- the material flow is formed from pieces of material which do not exceed a certain maximum piece size, preferably one maximum piece size in the range between 40 mm and 80 mm.
- the electrode spacing is greater in each case than this maximum piece size. This has the advantage that the pieces of material can migrate between them when the electrodes are immersed in the material flow, which makes it possible to subject the pieces of material to the high-voltage breakdowns in a particularly intensive manner. Also, this makes it relatively easy to apply the material flow substantially over its entire width with high voltage breakdowns, which is also preferred.
- the distance of the electrodes to the bottom of the material flow, i. to the top of the material flow carrying conveyor is greater than this maximum piece size. This results in the advantage that the pieces of material can not be clamped between the upper side of the conveying device and the electrodes when the electrodes are in contact with the material flow or when the electrodes are immersed in the flow of material, thereby significantly improving the operational reliability and service life of the device.
- the material of the material flow or a part thereof is divided downstream of the electrode assembly into coarse material having a size greater than a desired target size and fine material having a size less than or equal to the desired target size.
- the coarse material is fed back into the material flow upstream of the electrode arrangement, in order to be guided once again past the electrode arrangement and fragmented or weakened, or that the coarse material is subjected to a further fragmentation or weakening process. is subjected, in particular a further method according to this first aspect of the invention, to be further crushed or weakened.
- a conveying device which, viewed in cross-section, is designed to be channel-shaped, preferably V-shaped, at least in the region in which it passes the material flow past the electrode arrangement.
- the material flow is guided past the electrode arrangement by means of a flexible, electrically non-conductive conveyor belt whose edge regions are curved upward in the region in which it passes the material flow past the electrode arrangement.
- a flexible, electrically non-conductive conveyor belt whose edge regions are curved upward in the region in which it passes the material flow past the electrode arrangement.
- Such conveyor belts are robust, low-maintenance and commercially available in a variety of designs and sizes.
- the inclinations of the edge regions of the conveyor belt are preferably set to optimize the respective process.
- the conveyor belt is preferably flat so that the lowest possible elongation of the edge areas is required.
- the stream of material downstream of the region in which it is passed with the conveyor belt on the electrode assembly and there is fragmented by means of high voltage breakdown is conveyed upwards with the conveyor belt, preferably such that it the conveyor belt is led out of the process liquid.
- the conveyor belt is led out of the process liquid.
- the material flow conveyed upward with the conveyor belt is fed from the delivery end of the conveyor belt, preferably via a device for screening pieces of material comminuted to a certain target size, to an underlying delivery end of a further conveyor belt, with which it further fragmentation - And / or weakening method is supplied, in particular according to this first aspect of the invention. Accordingly, the method described is then part of a multi-stage fragmentation and / or attenuation method.
- the method according to the invention uses an electrode arrangement which comprises a plurality of electrode pairs or electrode groups, with each electrode pair or electrode group being assigned its own high-voltage generator, with which exclusively this pair or this group is advantageously independent from the other pairs of electrodes or electrode groups, with high voltage pulses is applied.
- an electrode arrangement which comprises a plurality of electrode pairs or electrode groups, with each electrode pair or electrode group being assigned its own high-voltage generator, with which exclusively this pair or this group is advantageously independent from the other pairs of electrodes or electrode groups, with high voltage pulses is applied.
- An electrode group is understood here to mean a combination of a high-voltage electrode, which is supplied with high-voltage pulses with the high-voltage generator, and a plurality of counter electrodes, between which the high-voltage breakdowns take place, whereby the respective high-voltage breakdown between the high-voltage electrode and that of the counterelectrodes usually takes place. between which the most favorable breakdown conditions are present.
- the material stream is formed from pieces of material or contains pieces of material which form a composite of metallic and non-metallic materials, as e.g. in slag pieces from waste incineration is the case.
- the advantages of the invention become particularly clear and it proves to be a further advantage that the requirements on the quality of the process liquid, mostly water, are very low, which reduces the costs are extremely low for the process liquid preparation.
- the processed material resulting from the process is preferably divided into metallic material and non-metallic material, advantageously with ferromagnetic metals, non-ferromagnetic metals and non-metallic material. In this way, a recycling or selective disposal of the components of the processed material is simplified.
- the electrode arrangement is Preferably applied with high voltage pulses in the range between 100 KV and 300 KV, in particular in the range between 150 KV and 200 KV, wherein preferably the power per pulse between 100 joules and 1000 joules, in particular between 300 joules and 750 joules.
- the high-voltage pulse frequencies are preferably in the range between 0.5 Hz and 40 Hz, in particular in the range between 5 Hz and 20 Hz, and the material flow is when passing the electrode assembly per millimeter of its extension in the direction Vorbei operationschal preferably 0.1 to 2.0, in particular 0.5 to 1.0 applied to high voltage breakdowns.
- a second aspect of the invention relates to an apparatus for carrying out the method according to the first aspect of the invention.
- the device comprises an electrode arrangement with one or more high-voltage electrodes and associated counterelectrodes. Their high-voltage electrodes can be acted upon by high-voltage pulses with one or more high-voltage generators.
- the device comprises a conveying device, preferably in the form of a conveyor belt or a conveyor chain, which is arranged at least partially in a tank filled or to be filled with a process liquid, in particular water, and with which a stream of material from a free-flowing z fragmenting and / or or material to be attenuated, immersed in a process fluid, may be carried past the electrode assembly while high voltage breakdowns are produced by the material flow by applying high voltage pulses to the electrodes of the electrode assembly.
- a conveying device preferably in the form of a conveyor belt or a conveyor chain, which is arranged at least partially in a tank filled or to be filled with a process liquid, in particular water, and with which a stream of material from a free-flowing z fragmenting and / or or material to be attenuated, immersed in a process fluid, may be carried past the electrode assembly while high voltage breakdowns are produced by the material flow by applying high voltage pulses to the electrodes of the electrode assembly.
- the device is designed in such a way that, during normal operation, the electrodes of the electrode arrangement are immersed in the process fluid from above and those of these electrodes between which the high-voltage breakdowns are generated. which, in each case opposite to the Materialvorbei operationsplatz with an electrode spacing.
- the device is designed in such a way that, in the case of appropriate operation, the high-voltage electrodes and the counterelectrodes, between which the high-voltage breakdowns are generated, are in contact with the material flow or even immersed in it.
- one or the other embodiment may be more preferable.
- the distance between the electrodes, between which high-voltage breakdowns are generated is in each case greater than 40 mm, more preferably in each case greater than 80 mm.
- the device has downstream of the electrode assembly means, in particular screening devices, with which the processed material of the material flow or a part thereof can be divided into coarse material with a size larger than a desired size.
- the electrode arrangement comprises a plurality of electrode pairs or electrode groups.
- each electrode pair or each electrode group is assigned its own high-voltage generator, with which only this electrode pair or this electrode group can be acted upon during normal operation with high-voltage pulses.
- a pair of electrodes is here a combination of a high voltage electrode, which is acted upon in normal operation with the associated high voltage generator with high voltage pulses, and a single of these high voltage electrode associated counter electrode, between which electrodes take place in the normal operation, the high voltage breakdowns understood.
- An electrode group is understood here to mean a combination of a high-voltage electrode, which is subjected to high-voltage pulses during normal operation with the associated high-voltage generator, and a plurality of counterelectrodes assigned to this high-voltage electrode, between which electrodes the high-voltage breakdowns take place during normal operation, where usually the same applies High voltage breakdown occurs between the high voltage electrode and the back of the counter electrodes, between which the most favorable breakdown conditions exist.
- the conveying device at least in the region in which it passes the material flow past the electrode arrangement, is channel-shaped, preferably V-shaped, seen in cross-section. det. This results in the advantage that the pourable material can be guided from the side areas in the middle, thereby simplifying a substantially complete loading of the material flow over its entire width with high voltage breakdowns.
- the conveyor thereby comprises a flexible, electrically non-conductive conveyor belt, with which the material flow is passed in the intended operation of the electrode assembly whose edge regions in the area in which it passes the material flow past the electrode assembly, curved upwards are.
- Such conveyor belts are robust, low-maintenance and commercially available in a variety of designs and sizes.
- the inclinations of the edge regions of the conveyor belt are preferably adjustable to optimize the respective process.
- the conveyor belt is preferably flat, so that the smallest possible elongation of the edge regions results.
- the conveyor of the device comprises a conveyor belt, which is designed such that during normal operation of the material flow downstream of the area in which it is passed with the conveyor belt on the electrode assembly and is fragmented there by high voltage breakdowns or weakened, with the
- the conveyor belt is conveyed upward, preferably in such a way that it is led out of the process fluid with the conveyor belt. In this way can be dispensed with expensive additional devices for removal of the processed material from the process liquid.
- a third aspect of the invention relates to a multi-stage plant for fragmenting and / or weakening pourable material, comprising a plurality of devices connected in series in the material conveying direction according to the second aspect of the invention.
- the plant is constructed in such a way that, in the normal operation of the plant, a material flow which is conveyed upwards by the conveyor belt of a first of the devices, from the discharge end of this conveyor belt, preferably via a device for screening pieces of material comminuted to a certain target size on the underlying Task end of the conveyor belt is placed in a direction of material delivery to this first of the devices following second of the devices, with which it passes the electrode assembly of this second of the devices and thereby further fragmented and / or weakened.
- a fourth aspect of the invention relates to the use of the device according to the second aspect of the invention or the device according to the third aspect of the invention for the fragmentation and / or weakening of pieces of material which form a composite of non-metallic and metallic materials, preferably slag pieces , from the waste incineration.
- Figure 1 is a plan view of a first inventions dungsgemässe device in a first mode.
- FIG. 2 shows a vertical section through the first device along the line AA in FIG. 1;
- Fig. 3 is a vertical section through the first device along the line B-B in Fig. 1;
- FIG. 4 is a plan view of the first Vorrich ⁇ device in a second mode
- Fig. 5 is a side view of one of the electrodes of the electrode assembly of the apparatus of Fig. 1;
- FIG. 6 is a side view of a first Vari ⁇ ante the high voltage electrode of FIG. 5.
- FIG. 7 is a side view of a second Vari ⁇ ante the high voltage electrode of FIG .. 5
- FIG. 8 shows a longitudinal section along the line D-D in FIG. 10 through a second device according to the invention
- FIG. 9 is a top plan view of the device of FIG. 8; FIG.
- Fig. 10 is a cross-section through the device taken along the line C-C in Fig. 8;
- FIG. 11 shows a longitudinal section along the line E-E in FIG. 13 through a third device according to the invention
- Fig. 12 is a top plan view of the device of Fig. 11;
- Fig. 13 is a cross section through the Vorrich ⁇ tung along the line FF in Fig. 11;
- FIG. 14 shows a longitudinal section along the line G-G in FIG. 16a through a system according to the invention
- FIG. 15 is a plan view from above of the system of FIG. 14;
- Figures 16a and 16b are cross-sectional views of the plant along the line H-H in Figure 14;
- FIGS. 17 to 19 are longitudinal sections as in FIG. 14 through different variants of individual apparatus of the system from FIG. 14. WAYS FOR CARRYING OUT THE INVENTION
- FIGS. 1 to 3 show a first device according to the invention for fragmenting bulk material 1 by means of high-voltage discharges, once in a plan view from above (FIG. 1), once in a vertical section along the line AA in FIG. 1 (FIG. 2) and once in a partial vertical section along the line BB in Fig. 1 (Fig. 3).
- the device comprises a carousel-like device 9, 10, 11 formed from an annular bottom plate 10, a fixed to the bottom plate 10 and connected from the bottom plate 10 perpendicular upwardly projecting cylindrical outer and 9 and not with the bottom plate 10 in connection and perpendicular from the bottom plate 10 upwardly projecting cylindrical inner wall 11.
- the bottom plate 10 is flat and continuously closed and is mounted by means of a roller ring 24 on an annular support member 25 of a fixed support structure, and is in normal operation by means of a drive motor 26 in the direction of rotation R to a running through the center of the circular shape of the bottom plate 10 vertical axis of rotation Z rotates around, whereby the lying on the bottom plate 10 to be fragmented material 1 forms an annular or Vietnamese bobringsegment- fcrmigen material flow 4 in the direction of rotation R about the rotation axis Z around.
- the carousel-like device 9, 10, 11 is disposed in a water-5 (process liquid) be ⁇ filled circular basin 27, the bottom of which is penetrated by the annular support member 25th
- the carousel-like device 9, 10, 11 is completely immersed in the water 5 in the basin 27 except for the upper boundary edges of the outer wall 9 and the inner wall 11.
- the bottom of the basin 27 is surrounded by a circular, downwardly extending funnel 19. forms whose lower end over a conveyor belt 20 ends, which promotes obliquely up to a level above the water level of the basin 27 (not fully shown here for space) and is arranged in a housing 30 which is connected to the lower funnel end and together with the basin 27 forms a water ⁇ tight container.
- the basin 27 is surrounded by an annular Schutzwar.d 31 through which the housing of the conveyor belt 30 and the conveyor belt 20 pass.
- the device arranged on the carousel-like device 9, 10, 11, a Elek oden-Ano tion 2 with a plurality of matrix-arranged high-voltage electrodes 12, which is approximately over a range of 270 ° of the circular ring shape carousel-like device 9, 10, 11 extends.
- Each of the high-voltage electrodes 12 protrudes in the illustrated situation from above to just above the surface of guided in the carousel-like device 9, 10, 11 circular ring-shaped material flow 4, wherein it dips into the water 5, and has its own, arranged directly above it High voltage generator 3, with which it is acted upon in operation with high voltage pulses.
- the reference numeral 3 only one of the high-voltage electrodes with the reference numeral 12 and only one of the high-voltage generators is designated by the reference numeral 3.
- each of the high voltage electrodes 12 has its own ground potential counter electrode 13.
- the high-voltage electrodes 12 and the counterelectrodes 13 associated therewith face each other at a distance transversely to the material forwarding direction and are in each case arranged in such a way that in the illustrated embodiment operation according to the invention by applying the respective high voltage electrode 12 with high voltage pulses Hochwoods tellelle between the high voltage electrode 12 and its associated counter electrode 13 are generated by the material 1 of the material flow 4 therethrough.
- the high-voltage electrode 12 together with the only associated counter electrode 13 thus forms a claimed pair of electrodes 12, 13th
- FIGS. 6 and 7 show side views of two variants of the high voltage electrode of FIG. 5.
- FIG. 6 shows a high-voltage electrode 12, which differs from that shown in FIG. 5 essentially in that it has two identical counter-electrodes 13 which are opposite one another and are inclined at their free ends to the high-voltage electrode 12.
- the high-voltage electrode 12 together with the two counter-electrodes 13 thus forms a claim-compliant electrode group 12, 13.
- Another difference is that this high-voltage electrode 12 has a straight electrode tip.
- FIG. 7 shows a high-voltage electrode 12, which differs substantially from that shown in FIG. 6 in that here the two mirror-inverted counterelectrodes 13 shown below in FIG. 6 form a single, U-shaped counterelectrode 13 are connected .
- the electrodes 12 and counter electrodes 13 are immersed in the material flow.
- the apparatus has a in a closed housing 32 angeord ⁇ scribed feed conveyor belt 15, by means of which upstream of the electrode assembly 2 to be fragmented material 1, in this case, fragments of precious metal ore body 1 on the base plate 10 the carousel-like device 9, 10, 11 is abandoned.
- the height of the material packing 1 guided under the electrode arrangement 2 as a circular ring-segment-shaped material flow 4 is defined by a passage-limiting plate 33 before entry into the region (process zone) formed between the carousel-like device 9, 10, 11 and the electrode arrangement 2.
- a fixed first baffle 17 Downstream of the electrode assembly 2 is a fixed first baffle 17 which extends from the outer wall 9 of the carousel-like device 9, 10, 11 through a first interruption 23 in the inner wall 11 in a region 7 in the center of the carousel-like device 9, 10th , 11 extends and shown in the intended operation, the material stream 4 emerging from the process zone substantially completely over the first interruption 23 in the inner wall 11 in the central region 7 leads.
- the bottom of the central region 7 is formed as a flat sieve bottom 8, with a Sieböffr.ungs- size which is dimensioned such that on target size fragmented material la passes through the sieve openings and falls into the funnel 19 disposed below, while material 1b, which is larger is as the target size, remains on the sieve plate 8.
- the finished material la shredded to target size is passed from the hopper 19 onto the conveyor belt 20 with which it is transported out of the device.
- the non-finished processed or not yet shredded to target size material 1b is pushed by the nach Wegende material 1 on the sieve 8 and from a subsequent to the first baffle 17 fixed second baffle 21 via a second interruption 28 in the inner wall 11 from the central Area 7 back into the annular segment-shaped material flow 4 out, with which it again at a portion of the high voltage electrodes 12 of the electrode assembly. 2 is passed and thereby acted upon with high voltage breakdowns.
- Fig. 3 which shows a vertical section through a part of the first device in the region of the processing zone along the line BB in Fig. 1, 10, the bottom plate of the carousel-like A ⁇ direction 9, 10, 11 one with a 29leisshemmenden layer 29 made of rubber occupied top on which the material to be processed 1 rests.
- Fig. 4 shows a plan view of the device in another mode.
- the second baffle 21 is here arranged in a position in which it closes the second interruption 28 in the inner wall 11 from the side of the central area 7 and releases an exhaust duct 34, in which the non-finished process resp not yet shredded to target size material 1b, which is pushed by the advancing material 1 on the sieve plate 8, falls into it and then with devices (not shown) is led away from the device.
- FIGS. 8 to 10 show a second device according to the invention for fragmenting pourable material 1 by means of high-voltage discharges, once in a longitudinal section along the line DD in FIG. 10 (FIG. 8), once in a plan view from above (FIG. 9). and once in a cross section along the line CC in Fig. 8 (Fig. 10).
- the device has an electrode arrangement 2 with a matrix of high-voltage electrodes 12, which are arranged in four consecutively arranged rows with four electrodes 12 in the direction of passage through the material S (in the figures, for the sake of clarity, only one of each is shown) Electrodes provided with the reference numeral 12).
- the electrodes 12 are in the illustrated normal operation with one directly over they are arranged high voltage generator 3 applied with high voltage pulses.
- a conveyor belt 6 by means of which a flow of material from a fragmented bulk material 1, in the present case fragments of ore, from the task side ⁇ Device is moved past in the material passage direction S to the electrodes 12 of the electrode assembly 2, while high voltage breakdowns are generated by the material 1 as a result of application of high voltage pulses to the electrode assembly 2.
- the material 1 of the material flow is in the water in the basin 16 5 immersed, as well as the electrodes 12 arranged above.
- the height of the flow of material is adjusted before entry into the area between the conveyor belt 6 and the electrode assembly 2 (process zone) through a fürbegrenzu.ngsblech 18.
- the conveyor belt 6 extends in the passage direction S over the entire width of the basin 16, so that the moving material flow covers the entire width of the basin 16.
- the medium region of the material flow is subjected to high-voltage breakdowns when passing through the process zone, which leads to an increasing fragmentation of the material 1 in this region, while the edge regions of the material flow remain practically untouched by high-voltage breakdown , so that the material 1 kept there retains its original lumpiness.
- the material stream exiting the process zone is separated from the conveyor belt 6 into three of separation walls 22 and juxtaposed across the entire width the collecting conveyor 6 extending collecting funnel 14, 14a, 14b at the end of the basin 16 delivered.
- the separation walls 22 are arranged such that the fragmented material 1 is discharged from the middle region of the material flow into the central collecting funnel 14, while the unfragmented material 1 is discharged from the edge regions of the material flow into the outer collecting funnels 14a, 14b.
- the fragmented material 1, which is discharged into the central hopper 14, is conveyed out of the basin 16 by means of a conveyor (not shown) and supplied for further use.
- the non-fragmented material 1, which is discharged into the outer collecting funnels 14a, 14b, is conveyed out of the basin 16 by means of conveying devices (not shown) and returned to the material flow on the feeding side A of the device.
- each of the high tensioning ⁇ voltage electrodes 12 two identical, mirror image opposite ode at their free ends respectively to Hochschreibselekt 12 inclined towards Counter electrodes 13, which are at ground potential and attached to the support structure of the high voltage electrode 12.
- the high-voltage electrode 12 together with the two counter-electrodes 13 forms a claim-compliant electrode group 12, 13.
- the high voltage electrodes 12 and their respective associated two counter electrodes 13 each transverse to Materialvorbei Operations- direction with a distance and immerse in the flow of material.
- FIGS. 11 to 13 show a third device according to the invention for fragmenting bulk-capable material 1 by means of high-voltage discharges, once in a longitudinal section along the line EE in FIG. 13 (FIG. 11), once in a plan view from above (FIG. 12) and once in a cross section along the line FF in Fig. 11 (Fig. 13).
- the device has an electrode arrangement 2 with three high-voltage electrodes 12, which are arranged one behind the other in the material passage direction S.
- the high voltage electrodes 12 and the associated counter electrodes 13 are formed as shown in Fig. 6, are each transverse to the materiallves.
- Results are each transverse to the material.
- these electrode groups 12, 13 each have a lateral offset with respect to one another in the material passage direction S.
- the high voltage electrodes 12 are acted upon in the illustrated operation as intended, each with a directly above them arranged high voltage generator 3 with high voltage pulses.
- a straight conveyor belt 6 of a flexible, electrically non-conductive strip material which has been reinforced in the direction of passage of material S at an angle of 10 degrees.
- a stream of material to be fragmented from the pourable material 1 in the present case slag pieces from waste incineration with a maximum piece size of 80 mm, from the task side A of the device ago in the material flow direction S at the electrodes 12, 13 of the electrode assembly is passed while high voltage breakdowns are produced by the material 1 as a result of application of high voltage pulses to the high voltage electrodes 12 of the electrode assembly 2.
- the material 1 of the material flow in Area of the electrode assembly 2 immersed in the water in the basin 16 5, as well as the electrodes 12 arranged above it, 13, which also dive into the flow of material.
- process water is removed from the basin 16 via a discharge line 35 arranged at the bottom of the basin 16 and fed to a water treatment plant (not shown), from which treated process water is conveyed back into the basin 16 via supply lines 36, which supply the water in each case of the electrodes 12, 13 in the material flow.
- the edge regions of the conveyor belt 6 are curved upward in the region in which they pass the material flow past the electrode arrangement 2, so that the conveyor belt 6 is channel-shaped in cross-section in this region or V-shaped, in such a way that the pourable material 1 of the material flow is guided by the side areas in the middle.
- the material flow is subjected to high voltage breakdowns over substantially its entire width, which leads to a fragmentation of the entire material flow.
- the angle of inclination of the edge regions of the conveyor belt can be adjusted in order to be able to optimally adapt the device to the material to be processed or its piece size. In the region of its ends, the conveyor belt 6 is flat.
- the material flow emerging from the process zone is led upwards out of the basin 16 by the conveyor belt 6 and subsequently fed to a further utilization or processing step (not shown).
- Figures 14, 15, 16a and 16b show an inventive system for fragmenting pourable material 1 by means of high-voltage discharges, once in a longitudinal section along the line GG in Fig. 16a (Fig. 14), once in a plan view from above (Fig. 15) and twice in a cross section along the line HH in Fig. 14 ( Figures 16a and 16b).
- this system consists of three devices connected in series according to FIGS 11 to 13 (three stages), with the difference that each of the devices in place of the three in the material flow direction S successively arranged and staggered electrode groups 13, 12, 13 with eweils own high voltage generator 3 only one centrally positioned electrode group 13, 12, 13, each with associated high voltage generator 3 has.
- the angle of rise of the conveyor belt 6 with 15 degrees here is DEU Lich steeper than in the previously described third inventive device according to Figures 11 to 13. All other details are identical and therefore will not be explained again here.
- Figures 16a and lob show cross-sections through the plant along the line HH in Fig. (But without pool and high-voltage generator) 14 at different settings of the inclination angles a of the edge regions of the conveyor belt shown 6, namely once at Nei ⁇ supply angles ⁇ of 23 degrees ( Figure . 16a) and once at Nei ⁇ supply angles a of 33 degrees (ig. 16b).
- FIGS. 17 to 19 show longitudinal sections as in FIG. 14 through different variants of one of the apparatuses according to FIGS. 14, 15, 16 a and 16 b.
- the first variant of the device according to FIG. 17 differs from that shown in Fig. 14 Vorrich ⁇ tung characterized in that the to be processed material is fed to the feed end A of the device via an outside of the basin 16 arranged inclined screening surface 37, by means of which fine material bes with a immten piece size, eg depending on the location of the device within the plant of less than 2 mm, less than 5 mm or less than 8 mm, is screened off before entering this device.
- the second device variant according to FIG. 18 differs from the device shown in FIG. 14 in that the material to be processed is placed on the conveyor belt 6 of the device at the feed end A of the device via an inclined screen surface 38 arranged inside the basin 16. by means of which fine material with a specific piece size, eg depending on the location of the device within the plant of less than 2 mm, less than 5 mm or less than 8 mm, within the basin 16 of this device but before entering the process zone is sieved.
- the third device variant according to FIG. 19 consists of a device according to FIG. 18, at the discharge end of which the processed material is dispensed onto an inclined screen surface 41, through which the material fragmented to a desired size falls onto a further conveying belt 39 arranged below it.
- the insufficiently fragmented material travels over the screen surface 38 and falls at the end of a conveyor belt 40, with which it is conveyed back to the task end of the device and there again to be processed material stream 1 to.
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Disintegrating Or Milling (AREA)
- Processing Of Solid Wastes (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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PCT/CH2015/000030 WO2016134488A1 (de) | 2015-02-27 | 2015-02-27 | Verfahren und vorrichtung zur fragmentierung und/oder schwächung von schüttfähigem material mittels hochspannungsentladungen |
PCT/CH2015/000031 WO2016134489A1 (de) | 2015-02-27 | 2015-02-27 | Verfahren und vorrichtung zur fragmentierung und/oder schwächung eines materialstücks mittels hochspannungsentladungen |
PCT/CH2015/000032 WO2016134490A1 (de) | 2015-02-27 | 2015-02-27 | Verfahren und vorrichtung zur fragmentierung und/oder schwächung von schüttfähigem material mittels hochspannungsentladung |
PCT/CH2016/000033 WO2016134492A1 (de) | 2015-02-27 | 2016-02-24 | Verfahren und vorrichtung zur fragmentierung und/oder schwächung von schüttfähigem material mittels hochspannungsentladungen |
Publications (2)
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EP3261769A1 true EP3261769A1 (de) | 2018-01-03 |
EP3261769B1 EP3261769B1 (de) | 2018-12-26 |
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EP16707373.3A Active EP3261769B1 (de) | 2015-02-27 | 2016-02-24 | Verfahren und vorrichtung zur fragmentierung und/oder schwächung von schüttfähigem material mittels hochspannungsentladungen |
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Country | Link |
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US (1) | US10919045B2 (de) |
EP (1) | EP3261769B1 (de) |
JP (1) | JP6815323B2 (de) |
CA (1) | CA2976964C (de) |
ES (1) | ES2717833T3 (de) |
IL (1) | IL253921A0 (de) |
WO (1) | WO2016134492A1 (de) |
Cited By (1)
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DE102018003512A1 (de) * | 2018-04-28 | 2019-10-31 | Diehl Defence Gmbh & Co. Kg | Anlage und Verfahren zur elektrodynamischen Fragmentierung |
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KR102531485B1 (ko) * | 2016-08-31 | 2023-05-10 | 셀프로그 아게 | 고전압 펄스 시스템 작동 방법 |
US10421079B2 (en) * | 2017-02-22 | 2019-09-24 | Victor Zaguliaev | Method and apparatus for rock disintegration |
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 |
CN110215985B (zh) * | 2019-07-05 | 2021-06-01 | 东北大学 | 一种用于矿石粉碎预处理的高压电脉冲装置 |
CN111632714B (zh) * | 2020-05-28 | 2021-04-09 | 西安交通大学 | 基于水中高压脉冲放电的物料破碎装置及其方法 |
CN112138835B (zh) * | 2020-09-02 | 2023-09-26 | 郑州中南杰特超硬材料有限公司 | 一种立方氮化硼的整形方法及其应用 |
CN113584724B (zh) * | 2021-07-28 | 2023-03-17 | 五邑大学 | 一种非织造材料的固网方法及电刺固网装置 |
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-
2016
- 2016-02-24 US US15/553,928 patent/US10919045B2/en active Active
- 2016-02-24 EP EP16707373.3A patent/EP3261769B1/de active Active
- 2016-02-24 JP JP2017545395A patent/JP6815323B2/ja active Active
- 2016-02-24 WO PCT/CH2016/000033 patent/WO2016134492A1/de active Application Filing
- 2016-02-24 CA CA2976964A patent/CA2976964C/en active Active
- 2016-02-24 ES ES16707373T patent/ES2717833T3/es active Active
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2017
- 2017-08-09 IL IL253921A patent/IL253921A0/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018003512A1 (de) * | 2018-04-28 | 2019-10-31 | Diehl Defence Gmbh & Co. Kg | Anlage und Verfahren zur elektrodynamischen Fragmentierung |
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IL253921A0 (en) | 2017-10-31 |
CA2976964A1 (en) | 2016-09-01 |
EP3261769B1 (de) | 2018-12-26 |
US20180353968A1 (en) | 2018-12-13 |
US10919045B2 (en) | 2021-02-16 |
JP6815323B2 (ja) | 2021-01-20 |
CA2976964C (en) | 2023-05-23 |
JP2018506429A (ja) | 2018-03-08 |
ES2717833T3 (es) | 2019-06-25 |
WO2016134492A1 (de) | 2016-09-01 |
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