EP3286544A1 - Verfahren und vorrichtung zur aufbereitung eines probenmaterials - Google Patents
Verfahren und vorrichtung zur aufbereitung eines probenmaterialsInfo
- Publication number
- EP3286544A1 EP3286544A1 EP16721702.5A EP16721702A EP3286544A1 EP 3286544 A1 EP3286544 A1 EP 3286544A1 EP 16721702 A EP16721702 A EP 16721702A EP 3286544 A1 EP3286544 A1 EP 3286544A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sample material
- mill
- melt
- grinding
- ground
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000000523 sample Substances 0.000 title claims abstract description 175
- 238000000034 method Methods 0.000 title claims abstract description 49
- 238000012545 processing Methods 0.000 title claims abstract description 13
- 239000000155 melt Substances 0.000 claims abstract description 26
- 238000001816 cooling Methods 0.000 claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 238000000227 grinding Methods 0.000 claims description 81
- 238000002844 melting Methods 0.000 claims description 23
- 230000008018 melting Effects 0.000 claims description 23
- 230000004907 flux Effects 0.000 claims description 19
- 230000001681 protective effect Effects 0.000 claims description 13
- 238000012546 transfer Methods 0.000 claims description 13
- 238000007711 solidification Methods 0.000 claims description 11
- 230000008023 solidification Effects 0.000 claims description 11
- 238000004458 analytical method Methods 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 9
- 238000005202 decontamination Methods 0.000 claims description 8
- 230000003588 decontaminative effect Effects 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 230000001939 inductive effect Effects 0.000 claims description 5
- 238000011144 upstream manufacturing Methods 0.000 claims description 5
- 230000007717 exclusion Effects 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 abstract description 4
- 239000003826 tablet Substances 0.000 description 39
- 239000000203 mixture Substances 0.000 description 21
- 239000007789 gas Substances 0.000 description 18
- 239000003795 chemical substances by application Substances 0.000 description 16
- 150000003839 salts Chemical class 0.000 description 9
- 238000009413 insulation Methods 0.000 description 8
- 239000003870 refractory metal Substances 0.000 description 8
- 230000006698 induction Effects 0.000 description 7
- 238000003801 milling Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000000956 alloy Substances 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000011195 cermet Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 238000000265 homogenisation Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000002826 coolant Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- PSHMSSXLYVAENJ-UHFFFAOYSA-N dilithium;[oxido(oxoboranyloxy)boranyl]oxy-oxoboranyloxyborinate Chemical compound [Li+].[Li+].O=BOB([O-])OB([O-])OB=O PSHMSSXLYVAENJ-UHFFFAOYSA-N 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000010309 melting process Methods 0.000 description 2
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000007891 compressed tablet Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000000289 melt material Substances 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- KAQHZJVQFBJKCK-UHFFFAOYSA-L potassium pyrosulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OS([O-])(=O)=O KAQHZJVQFBJKCK-UHFFFAOYSA-L 0.000 description 1
- 238000007712 rapid solidification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 229910000663 tzm Inorganic materials 0.000 description 1
- 238000004876 x-ray fluorescence Methods 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
- B02C17/1815—Cooling or heating 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
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
- B02C17/183—Feeding or discharging 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
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
- B02C17/183—Feeding or discharging devices
- B02C17/186—Adding fluid, other than for crushing by fluid energy
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
- G01N2001/2866—Grinding or homogeneising
Definitions
- the invention relates to a method and a device for processing a sample material.
- the invention further relates to a method and apparatus for making a tablet comprising a sample material intended for use in analyzing the sample material.
- Sample material is ground and processed using pressure and / or binder to the tablet.
- a method of this kind presupposes that the sample material is already present in a material consistency suitable for the finished tablet before the grinding.
- WO 2015/000571 A1 and US Pat. No. 5,257,302 each disclose processes for producing a tablet comprising a sample material, in which a material mixture comprising the sample material is melted and cooled again. The resulting glassy material is then ground and then pressed into the tablet.
- the invention had the object of providing an improved way to
- a tablet comprising sample material is the subject matter of patent claim 10.
- An apparatus which can be used advantageously in carrying out these methods and apparatuses comprising such a device are subject matters of claims 11, 12 and 13.
- Advantageous embodiments of the method according to the invention and advantageous embodiments of the apparatus according to the invention and of the systems according to the invention are Objects of the further claims and will become apparent from the following description of the invention.
- a generic method for processing a sample material, in which the sample material is melted to form a liquid melt, then solidified by cooling and the solidified melt is then ground in a mill, according to the invention is characterized in that the melt in the mill (and in particular in a grinding chamber of the mill) is solidified.
- the mill may in particular be a fine mill.
- This advantage of a relatively rapid preparation of the sample material is given in particular if, as is preferably provided, the mill is already operated during the solidification of the melt.
- Another advantage resulting from this procedure may be that the molten melt which is still melted is distributed over a relatively large area within the mill during operation of the mill during solidification, which in turn can accelerate grinding after solidification.
- the melting of the sample material for the formation of the liquid melt can be effected in particular by an inductive heating.
- a device according to the invention for processing a sample material can accordingly, in addition to a mill for grinding the sample material, comprise means for inductive heating of a receiving space of the device provided for receiving the sample material.
- An inductive heating of the receiving space allows a rapid and locally limited and thus energy-saving melting of the sample material as well as an advantageous in terms of the required space integration into the inventive apparatus for processing a
- the melt is not only brought to solidification in the mill, but also the melting of the sample material is carried out in the mill.
- the mill can advantageously be integrated into the receiving space.
- a resulting advantage is a particularly compact design for the device according to the invention.
- a transport of the melt from an outside of the mill located heated receiving space can be avoided in the mill, thereby accelerating the implementation of the method according to the invention and / or problems in the transport of the liquid melt can be avoided.
- a sample material transfer arranged between the receiving space and the mill can be closed by means of a closure element, whereby a controlled
- molten sample material are effectively prevented in the mill.
- a closure element causes a good thermal decoupling between the receiving space and the mill or the grinding chamber.
- the powder formed by the milling of the solidified melt in the preparation of a sample material according to the invention can advantageously be used to produce a tablet comprising the sample material, in which the inventive preparation of the sample material is followed by pressing of the ground solidified melt into a tablet.
- comprehensive tablet comprises at least a device according to the invention for the preparation of the sample material and a tablet press.
- a “tablet” is understood to mean a solid in a defined spatial form, which has the sample material or a material mixture comprising the sample material.
- Sample material is not adversely affected (to a relevant degree) by milling.
- Another advantage of producing a tablet from the ground solidified melt lies in the good handling of the tablet as part of an analysis of the sample material.
- the invention accordingly also relates to a method for analyzing a
- Sample material wherein by means of a method according to the invention, a tablet comprising the sample material is produced and subsequently an analysis of the sample material is carried out using the tablet.
- an X-ray fluorescence analysis can be carried out.
- a system according to the invention for analyzing a sample material comprises at least one analyzer and a device according to the invention for Preparation of a sample material or a system according to the invention for producing a tablet comprising a sample material.
- the mill and / or the melt in the mill is (actively) cooled.
- the device according to the invention can for this purpose comprise a corresponding cooling device. This allows, on the one hand, a comparatively rapid solidification bringing the melt in the mill.
- this makes it possible to specifically influence the solidification of bringing the melt and in particular to control or regulate, which in particular makes it possible to bring about the solidification such that a glass is formed, because in such a glass, the homogeneous mixture, which is characterized by
- glass or “glassy” means an amorphous material structure which, after cooling from the melt, does not have an ordered crystalline structure.
- a transfer of the liquid melt into a glass can be achieved, in particular, by cooling the liquid melt sufficiently rapidly, whereby crystallization of the melt material is prevented.
- a partially crystalline formation of the solidified melt may also be sufficient or even advantageous.
- Cooling of the mill and / or the melt in the mill can be carried out, for example, by means of a gas flow (eg air or a protective gas). Such a gas flow can be generated for example by means of a blower. In this case, a regulation of the active cooling can be provided to the extent that crystallization during solidification is prevented as possible.
- a cooling device integrated in a housing of the device can also be provided with one or more cooling lines / cooling channels through which a coolant (in particular a cooling liquid) flows.
- a coolant in particular a cooling liquid
- the sample material is ground before melting. This can be done with the same mill, with the further course in the implementation of the method according to the invention, the solidified melt is ground.
- the device according to the invention can accordingly comprise such a further mill.
- Recording room of the device according to the invention also receives the mill. Likewise, the addition of the flux can take place in a heatable receiving space upstream of the mill.
- the formation of a homogeneous melt can be advantageously influenced, which helps to improve an analysis of the sample material based on the re-solidified and ground melt.
- influences resulting, for example, from the particle size distribution and the density and from mineralogical properties such as crystal structure and crystallinity of the sample material can be reduced or eliminated.
- the sample matrix becomes uniform and thus the so-called
- the sample material may be pre-ground in a first grinding step and further ground after mixing with the melting agent in a further grinding step.
- the grinding of the Sample material-flux mixture primarily serve the purpose of mixing the already ground sample material with the flux. This is made possible, in particular, by the fact that the melting agent is often already in fine-grained form and thus does not have to be comminuted further, if necessary.
- One advantage that can result from this is that both the grinding of the
- Melting agent in the same device namely a suitable (fine) mill, can be performed. Provision of an additional mixing device can thereby be avoided.
- milling does not necessarily mean a process step in which processing of a material or material mixture is associated with achieving a reduction in the particle size of the material or material mixture , provided by the same procedure or by the use of the same device used here (mill) in principle, ie in case of different process parameters, a grinding of the material or material mixture would be possible.
- the operating speed of the mill can be adapted to the mixing effect to be achieved (possibly low speed) and can be particularly from a
- the flux metered in the form of a solid mix with the sample material whereby a dosage of sample material and flux in a predefined ratio can be simplified.
- the sample material if appropriate before mixing with the flux
- the decontaminating agent may preferably comprise a first subset of the
- a solidified melt (or at least a subset thereof) of a first subset of the sample material can also be used as a decontamination agent. This can
- a mill by means of a first decontamination, preferably a first subset of the
- Sample material comprises to decontaminate for a subsequent grinding of a further subset of the sample material, said further subset of the sample material then (optionally mixed with the flux and) is melted.
- the decontaminant may also be or comprise a non-sample material, such as, in particular, sand or corundum.
- the sample material is ground and / or melted in the presence of a protective gas and / or under the greatest possible exclusion of air.
- a chemical influence of the sample material by air in the context of processing can be avoided as much as possible.
- Refractory metal may be formed. Suitable refractory metals are, for example, TiCN cermet, Al 2 O 3 cermet, MoSi-TiCN, where combinations of
- the grinding chamber is made of TiCN cermet and the grinding tool is made of Al 2 O 3 cermet. If necessary, it can be provided that the entire
- Device for processing a sample material, but at least the sections coming into contact with the sample material or
- Components thereof are formed of refractory metal.
- the same can be provided for a system according to the invention for producing a tablet comprising a sample material or for analyzing a sample material.
- lithium tetra- or metaborate lithium tetra- or metaborate, sodium tetra- or metaborate, sodium carbonate, potassium disulfate and / or an acid, for example boric acid, or a mixture thereof - even with the addition of additives (eg flow agents, such as LiBr) - can be used.
- additives eg flow agents, such as LiBr
- the flux is mixed with the sample material in a ratio of between 40: 1 to 2: 1, preferably between 10: 1 and 2: 1.
- the melting and / or the bringing about of the solidification of the melt are monitored in real time and optionally regulated. It can also be exploited that a
- Sample material or the mixture of fluxes leads relatively quickly to a corresponding control of the introduced into the sample material-flux mixture heat energy. It can thus be realized a very fast and accurate control of the reflow process.
- Such monitoring can advantageously be done using a pyrometer or thermocouple (integrated temperature sensors).
- the sample material may in particular be one or more natural rocks, such as, for example, silicates, carbonates, sulfates, sulfides, salts and / or oxides.
- the sample material may in particular comprise industrial process products, such as, for example, slag, fly ash, alloys and / or other metal compounds.
- FIG. 1 shows schematically a first embodiment of a system according to the invention for analyzing a sample material
- FIG. 2 shows schematically a second embodiment of a system according to the invention for analyzing a sample material.
- the plant shown in FIG. 1 comprises a device for processing a sample material.
- This has a mill 1 with a grinding vessel 2 and one or more in one of the grinding vessel 2 formed receiving space 3 arranged grinding tools (millstone 4 or combination of millstone 4 and grinding ring 5).
- the grinding tool or tools and also the unit consisting of mill 1 and grinding vessel 2 can be driven in rotation by means of a drive, not shown, in order to comminute a sample material (not shown) present in the receiving space 3.
- the grinding vessel 2 is enclosed by an insulation 6 (or a temperature-resistant lining) and a protective jacket 7, for example a steel jacket.
- In the insulation 6 are one or more
- Induction coils 8 integrated, which surround the grinding vessel 2.
- Milling vessel 2 are heated inductively, so that the mill 1 simultaneously acts as the furnace of the device.
- the grinding vessel 2 and the grinding tool or tools are made of refractory metal (for example molybdenum, zirconium oxide or TZM alloy, or other alloys, alternatively also coatings and / or
- the protective jacket 7 and the components accommodated therein can be cooled by means of one or more fans 9.
- the cooling of the grinding vessel 2 and thus of the receiving space 3 can also be done by introducing a coolant into the existing example of copper pipe (or similar) induction coils 8.
- the sample material can be introduced into the receiving space 3 via an inlet funnel 11 made of heat-resistant material (for example refractory metal) which can be closed by means of a cover 10 and forms a sample material inlet.
- a shielding gas e.g., nitrogen
- a shielding gas inlet 12 e.g., in the form of a double-walled connecting pipe to allow simultaneous entry and exit of the shielding gas.
- Grinding aid for example, a resin or a pulp
- inlet funnel 11 can also be made via the inlet funnel 11.
- the sample material may pass through a sample outlet 13 after opening a sample outlet 13
- Outlet tappet 14 are applied.
- the outlet plunger 14 is moved vertically.
- the sample outlet 13 can also be present several times, for example twice.
- a defined subset of the sample material can first be ground as a decontamination with the optional addition of grinding aid for rinsing the receiving space 3.
- the Dekontamim réellesstoff is then discarded and the receiving space 3 cleaned.
- a compressed gas for example compressed air, introduced into the device and
- the sample outlet 13 may be configured such that the introduction of a transvector 23 (e.g., a circular transporter) enhances pressurized gas flow and thus improves cleaning of the receiving space 3.
- a transvector 23 e.g., a circular transporter
- a defined subset of the (same) sample material can again be introduced into the receiving space 3.
- grinding aid can be added.
- the sample material is then through an operation of the mill 1 to ground to achieve a final fineness. This can be done by a previous one
- a defined amount of a molten salt eg lithium tetraborate
- a ratio defined for the sample material to be melted eg 1: 6, 1 g sample material and 6 g molten salt
- the sample material and the molten salt are mixed as optimally as possible.
- sample material or the sample material / flux mixture can then be melted by heating the receiving space 3 or the grinding vessel 2 by means of the induction coils 8 to a predefined temperature of, for example, about 1000 ° C. and thereby digested.
- a predefined temperature for example, about 1000 ° C. and thereby digested.
- temperature curves can be traversed (for example, certain
- the mill 1 may already have been put into operation or continue to be operated in order to allow a good distribution of the (molten) sample material within the receiving space 3.
- the grinding vessel 2 After melting of the sample material or the sample material-flux mixture, the grinding vessel 2 is cooled by an operation of the blower 9 (there may also be several blowers). This is the
- Grinding vessel 2 continues to be driven in rotation at low speed in order to achieve the most uniform possible cooling.
- the melt of the sample material or of the sample material / flux mixture received in the grinding vessel 2 is solidified, forming a glassy structure.
- the grinding intensity is changed and the glassy, solidified melt is finely ground.
- the mill for Feinstmahlung the solidified melt functional as a disc vibrating mill operated.
- the powder thus produced (sample) is discharged via the sample outlet 13.
- the sample produced is then fed to a tablet press 15 and pressed there to form a tablet.
- the (pressed) tablet thus produced is then available for analysis in a suitable analyzer 16.
- the grinding chamber can be cleaned during this or subsequently. This is again effected by means of a compressed gas (for example compressed air) which is introduced into the device via the protective gas inlet 12 and is discharged again together with impurities from the sample outlet 13.
- a compressed gas for example compressed air
- Reception room 3 also serve exclusively as a grinding chamber of the (fine) mill (basic process steps then: sample input, addition of grinding aid, very fine grinding, sample output).
- the decontaminating agent is also melted (optionally after admixing a flux) and ground. After grinding, the decontaminating agent is discarded and, for example, also applied by introducing a compressed gas via the protective gas inlet from the device.
- the plant shown in FIG. 2 differs from that of FIG. 1 in particular to the effect that the inductively heatable receiving space 3 no longer receives the mill 1, but this is upstream.
- the receiving space 3 can be arranged centrally or eccentrically to a grinding chamber 17 formed by the mill 1 and circular in a horizontal section.
- a between the heated receiving space 3 and the grinding chamber 17 arranged sample material transfer 18 by means of a closure element 19 made of a special metal (eg refractory metal) can be closed.
- a closure element 19 made of a special metal (eg refractory metal)
- the mill 1 comprises a grinding vessel 2 and grinding tools arranged in the grinding vessel 2.
- the grinding chamber 17 is in turn operable with respect to storage and drive as a disc vibratory mill.
- the grinding tools used are a millstone 4 or a combination of grinding stone 4 and grinding ring 5.
- carbide hard metal or other special metal
- the receiving chamber 3 forming antechamber 20, however, consists of refractory metal.
- the grinding vessel 2 and the pre-chamber 20 are surrounded by an insulation 6, wherein the insulation 6 is in turn disposed within a protective jacket 7, for example a steel jacket.
- induction coils 8 are integrated.
- a sample material inlet of the receiving space 3 can be closed by means of a cover 10.
- a protective gas inlet 12 is integrated.
- the pre-chamber 20 functioning as a furnace can be operated under protective gas.
- sample material By opening the lid 10 sample material can be introduced in a defined amount in the receiving space 3.
- the sample material transfer 18 is closed by means of the closure element 19.
- a smelting salt eg lithium tetraborate
- the molten salt may be in powder or tablet form and dosed accordingly.
- the entire device or the unit consisting of mill 1 and the section (pre-chamber section 21) forming the heatable receiving space 3 can be driven in rotation.
- the receiving space 3 After closing the lid 10, the receiving space 3 is heated to reach a defined target temperature and thereby melted in the receiving space 3 sample material-flux mixture melted. In this case, temperature ramps and certain heating curves can be traversed.
- the device or the unit consisting of mill 1 and pre-chamber section 21 is set in rotation by means of a drive, not shown (centrifugal movement).
- the melt thus produced is passed by opening the sample material transfer 18 in the still liquid state directly into the downstream grinding chamber 17. Even during the transfer of the melt into the grinding chamber 17, this can optionally be driven in rotation.
- Liquid cooling which in the grinding vessel 2 and / or in the surrounding the grinding vessel 2 insulation 6 integrated cooling channels 22, cooled.
- a decontamination agent can be passed through the device.
- the grinding process and a Milling process optionally upstream melting process for the
- Decontaminating agent may be the same as the corresponding process (s) for a sample material to be subsequently analyzed.
- the powder thus produced is discharged from the device via a sample outlet 13 (if appropriate, several, for example two). If the powder is a
- Decontaminating agent is this is usually discarded and discharged by introducing a pressurized gas through the protective gas inlet 12 from the device.
- a sample to be analyzed is metered into a sample cup (not shown), for example. The sample then becomes one
- Tablet press 15 fed and there to form a tablet in a steel ring (not shown) pressed.
- the pressed tablet thus produced is then available for analysis in an analyzer 16.
- Tablet press 15 sample to be processed and also to be analyzed
- the device can also be used for pre-grinding sample material.
- the sample material would pass through the heated receiving space 3 when the sample material transfer 18 is open and arrive in the grinding chamber 17 unprocessed.
- the sample material would then be finely ground.
- a decontamination agent which is also a subset of the
- Sample material could be ground.
- the decontaminating agent would generally be discarded after the milling process.
- the device according to the invention according to FIG. 2 allows simultaneous processing of two subsets of a sample material (or possibly also a non-sample decontaminant).
- a sample material or possibly also a non-sample decontaminant.
- a second subset may be melted in the heated holding space.
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015106321.2A DE102015106321A1 (de) | 2015-04-24 | 2015-04-24 | Verfahren und Vorrichtung zur Aufbereitung eines Probenmaterials |
| PCT/EP2016/058842 WO2016170029A1 (de) | 2015-04-24 | 2016-04-21 | Verfahren und vorrichtung zur aufbereitung eines probenmaterials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3286544A1 true EP3286544A1 (de) | 2018-02-28 |
Family
ID=55963302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16721702.5A Withdrawn EP3286544A1 (de) | 2015-04-24 | 2016-04-21 | Verfahren und vorrichtung zur aufbereitung eines probenmaterials |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3286544A1 (de) |
| DE (1) | DE102015106321A1 (de) |
| WO (1) | WO2016170029A1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108722566B (zh) * | 2018-05-17 | 2020-05-19 | 中国科学院寒区旱区环境与工程研究所 | 一种自动湿法清洁和烘干磨具的步进给料磨样机 |
| CN110082249A (zh) * | 2019-03-07 | 2019-08-02 | 中冶节能环保有限责任公司 | 一种钢渣原渣中金属铁含量的测定方法 |
| CN111644604A (zh) * | 2020-07-03 | 2020-09-11 | 海盐通惠铸造有限公司 | 大型回转破碎机主轴衬套铸造生产线及铸造工艺 |
| CN114534866A (zh) * | 2020-11-18 | 2022-05-27 | 威利A.巴霍芬公司 | 搅拌式球磨机 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1910232B2 (en) * | 1969-02-28 | 1970-11-05 | Tablet fusion system for x-ray fluoresance - analysis | |
| US5257302A (en) | 1987-08-31 | 1993-10-26 | Ngk Insulators, Ltd. | Fluorescent X-ray analyzing system |
| DE102013106998A1 (de) * | 2013-07-03 | 2015-01-08 | Thyssenkrupp Industrial Solutions Ag | Verfahren sowie eine Vorrichtung zur Herstellung einer Tablette |
-
2015
- 2015-04-24 DE DE102015106321.2A patent/DE102015106321A1/de not_active Ceased
-
2016
- 2016-04-21 WO PCT/EP2016/058842 patent/WO2016170029A1/de not_active Ceased
- 2016-04-21 EP EP16721702.5A patent/EP3286544A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016170029A1 (de) | 2016-10-27 |
| DE102015106321A1 (de) | 2016-10-27 |
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