EP0799643A1 - Dispositif de traitement de suspensions - Google Patents

Dispositif de traitement de suspensions Download PDF

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Publication number
EP0799643A1
EP0799643A1 EP97104850A EP97104850A EP0799643A1 EP 0799643 A1 EP0799643 A1 EP 0799643A1 EP 97104850 A EP97104850 A EP 97104850A EP 97104850 A EP97104850 A EP 97104850A EP 0799643 A1 EP0799643 A1 EP 0799643A1
Authority
EP
European Patent Office
Prior art keywords
grinding
insert body
basket
reaction container
stirring
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
Application number
EP97104850A
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German (de)
English (en)
Other versions
EP0799643B1 (fr
Inventor
Wolfgang Hiersche
Wilfried Dr. Knott
Andreas Dr. Mehrwald
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.)
Evonik Operations GmbH
Original Assignee
TH Goldschmidt AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TH Goldschmidt AG filed Critical TH Goldschmidt AG
Publication of EP0799643A1 publication Critical patent/EP0799643A1/fr
Application granted granted Critical
Publication of EP0799643B1 publication Critical patent/EP0799643B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • B02C17/16—Mills in which a fixed container houses stirring means tumbling the charge
    • B02C17/168—Mills in which a fixed container houses stirring means tumbling the charge with a basket media milling device arranged in or on the container, involving therein a circulatory flow of the material to be milled

Definitions

  • the invention relates to a device according to the preamble of claim 1.
  • grinding plants are known in which the suspension to be treated is subject to a circulation system in which a ball mill is integrated in addition to a dispersing device.
  • the suspension is circulated within this circuit by means of a feed pump, which is inserted at a suitable point in the pipeline connecting the dispersing device to the ball mill.
  • Such grinding plants are used, for example, to process paint colors and pigment pastes.
  • agitator mill unit which can be lowered into a container containing the suspension to be treated by means of a hydraulically operated lifting column, the construction of which corresponds to the known dissolvers.
  • the rotation of a screen basket exerts a circulating effect on the suspension and the product container mentioned can be designed to be coolable, namely double-walled, in order to maintain temperature limit values.
  • a largely low-emission fine grinding can be achieved via a sealed container lid.
  • Such agitator mills are for example from the prospectus NETSCH Turbomill known by the NETSCH company.
  • a dispersing device which consists of an agitator ball mill which is vertically adjustable within a vertically arranged cylindrical container and below which - relative to the container in a fixed height position - a flow generating device designed as a dissolver is attached.
  • the agitator ball mill consists of a sieve-like perforated housing in the form of a toroidal annular channel which extends coaxially to the axis of the container, the outer periphery of which is held at a distance from the inside of the housing and which encloses a central opening through which the axial direction of the container extends extending drive shaft of the dissolver is passed.
  • This drive shaft is guided at the upper end of the container in a hollow shaft, by means of which the agitator, which is located within the agitator ball mill and is formed by a system of annular disks, can be driven.
  • the agitator on the one hand and the dissolver on the other hand can be driven by means of drives located outside the container - however, a common drive can be provided for both devices.
  • the agitator ball mill is otherwise suspended on rods within the container and a further drive device serving for height adjustment is provided.
  • the dispersed material is predispersed, the agitator ball mill being in a raised position, ie located outside the product to be dispersed, lowering the agitator ball mill also achieves fine dispersion in addition to a grinding effect.
  • the starting point of the invention is a reaction vessel which defines a closed reaction space and which contains the essential components of the device, namely a grinding and a stirring system.
  • the reaction vessel is designed to be pressure-resistant and designed equally for overpressure and underpressure operation.
  • the circulation, which is subject to the suspension to be treated, is accommodated in this reaction chamber, which is hermetically sealed from the outside, so that it is ensured that the suspension between the grinding and the stirring system is subject to a forced control and in this way also experiences an effective grinding effect.
  • the closed compact system enables heterogeneous reactions between solids, liquids and gases to be carried out within the reaction vessel without having to go through external reaction loops.
  • a fixed grinding basket is used, which is connected to the reaction vessel and carries a filling of grinding balls with a diameter of, for example, 1 mm to 5 mm, which can fill this, for example, with a degree of filling of approx. 80%.
  • the size and material of the grinding media or grinding balls are selected as a function of the solids to be ground and the desired grinding quality, in particular the fineness of the particles contained in the suspension.
  • the grinding basket is located in a tubular insert body, which is expediently inserted sealingly from the top of the reaction vessel into an opening arranged here.
  • the quality of this seal is selected depending on the process parameters of the grinding process, in particular taking into account an overpressure and underpressure operation and the properties of the suspension to be treated.
  • the grinding system is located at an end region thereof, and at least one stirring and / or conveying element is also provided, which is expediently arranged adjacent to the grinding system.
  • a conveying element is arranged within the tubular insert body results in an improved conveying effect which is exerted on the suspension to be treated, which suspension is exposed to an intensive circulation effect in this way.
  • the grinding basket can also be located in a bypass line, with stirring and / or conveying elements being located on one or on both sides of the grinding basket, which is in turn delimited, for example, by sieve plates.
  • stirrers are used as stirring and / or conveying elements, for example propeller, anchor or turbine stirrers.
  • the selection of the specifically used Stirrer types are used in accordance with their intended purpose, namely to ensure on the one hand a positive guidance for the suspension to be treated and thus its circulating movement and on the other hand to maintain a perfect dispersion state within the suspension, in particular to prevent solid deposits. Since the usual operating speeds of relatively slow rotating armature, blade or grid stirrers differ from those of relatively fast rotating propeller and turbine stirrers, different drives are required or expedient in individual cases depending on the type of stirrer actually used.
  • the grinding and stirring system can have common drive units - separate drive units can also be provided for both systems.
  • the latter has the advantage of further regulation of the parameters essential for the stirring and grinding process.
  • the reaction container is preferably designed as a rotationally symmetrical vessel within which the grinding and stirring system can be arranged centrally or coaxially or also eccentrically.
  • the grinding and stirring system can be designed as a compact structural unit - these systems can, however, also be arranged separately from one another in the course of the circulation within the reaction vessel.
  • functional elements of the stirring system can also be arranged in the immediate vicinity of the grinding system.
  • Crucial for the distribution of these functional elements along the above-mentioned circulation for the suspension are their rheological properties, to which these elements are structurally adapted. In this way, a perfect state of dispersion within the suspension must be maintained and it must be ensured that it is within the cycle mentioned at the beginning experiences a forced guidance through the grinding bed of the grinding system.
  • the axis of the grinding system runs parallel to the axis of the reaction container. This is a preferred orientation of this axis - however, depending on the specific geometric configuration of the reaction container, it is equally possible to have the axis of the grinding system run at any angle to the axis of the reaction container.
  • the drive units are located outside the reaction container, in particular outside the reaction chamber. This requires the use of suitable seals or the use of drives with a containment shell or magnetic drives in the case of special requirements regarding pressure resistance and freedom from leakage.
  • the drive units generally consist of motor-gear units, variable-speed gear units can be used to implement speed controllability.
  • purely electrical speed controls are particularly advantageous, for example on the basis of frequency control in single-phase or multi-phase AC motors. In principle, however, speed-adjustable DC drives can also be considered.
  • the features of claim 8 are directed to an alternative accommodation of the grinding system in a bypass line connected to the reaction vessel.
  • a plurality of bypass lines can also be assigned to the reaction vessel in order to develop a particularly intensive grinding action, each bypass line being connected to the reaction vessel via two connection points, and wherein a plurality of pairs of such connection points are preferably associated with the reaction vessel in a uniform circumferential distribution.
  • claims 9 to 11 are directed to possibilities of tempering the suspension during the treatment process.
  • heat can either be introduced into the reaction space via a heat transfer medium or heat can also be extracted from it in the same way.
  • Another way of extracting heat which can be used in particular in the case of low boilers, is the arrangement of one or more reflux coolers.
  • the grinding disks arranged within the grinding basket according to the features of claim 12 are provided with openings in the form of slots, spirals, crosses etc. and exert a driving effect on the grinding balls during the rotary movement.
  • the grinding basket is equipped with inlet and outlet openings for the suspension to be treated, which openings are formed by sieve surfaces, and is preferably of rotationally symmetrical design with respect to the axis of the grinding system.
  • claims 14 and 15 are directed to the arrangement of these openings of the grinding basket which serve to guide the suspension through the grinding bed.
  • these can be arranged either in the end faces thereof or in these end faces in each case adjacent peripheral sections.
  • the latter variant opens up favorable mounting options for the drive shaft of the grinding or stirring system on the end faces designed as a circular plate, as well as a larger screen area to reduce pressure losses.
  • the grinding basket is accommodated in such a tube chamber, the cross section of which is expanded compared to the other line sections of the bypass line, so that an adequate grinding chamber volume is provided.
  • This also has the advantage of a reduced flow rate, an increased dwell time and thus an improved grinding effect within the grinding bed.
  • the tube chamber is followed, for example, by conical transition tube sections, and, according to the features of claim 21, said stirring and / or conveying element is located outside of these tube sections, thus at a suitable other point within the bypass line.
  • the features of claim 22 are directed to the more precise design of the bypass line.
  • This can consist, for example, of pipe elbows which are identical to one another, which are attached to the mentioned connection points of the reaction vessel and which, with the interposition of conically widening pipe sections, produce the connection to the above-mentioned pipe or grinding chamber.
  • the features of claim 23 illustrate the geometrically very simple mechanical structure of the reaction container.
  • the bottom area is conical or spherical, the formation of solid deposits is counteracted, the stirring elements should be selected such that the flow effect introduced into the suspension by this covers every area of the bottom area uniformly.
  • the features of claim 24 are directed to further possibilities of improving the dispersing action to be exerted on the suspension to be treated. By appropriate choice of In this way, additional turbulence can be introduced into the flow in the different agitating elements, which counteracts the formation of solid deposits.
  • the insert body or the grinding basket are equipped with service openings for removing grinding balls or for introducing grinding balls.
  • such maintenance work which is related to the removal of grinding media and the filling of grinding media, is relatively simple.
  • the reaction container is equipped with a discharge line for a vaporous reaction product.
  • the reaction vessel is a hermetically sealed system which enables heat and heat to be removed and thus a treatment process at high operating temperatures, in particular in the vicinity of the boiling point, the vaporous reaction product can be obtained in liquid form via a condenser arranged in this discharge line.
  • a reflux condenser which is designed to carry out a partial condensation, it is possible to prepare the reaction product by distillation with a view to a larger one purity of the liquid product obtained in the condenser.
  • a reflux condenser it is optionally also possible to use a rectification column which allows a volatile reaction product to be separated off in higher purity.
  • the features of claim 27 are directed to the placement of a discharge member for a liquid reaction product and a feed member for the suspension to be treated.
  • the reaction vessel according to the invention is basically designed for discontinuous operation which provides for multiple circulation of the suspension to be treated within a circuit which contains the grinding system. In principle, however, there is also the possibility of using the reaction vessel as part of a continuous grinding process.
  • Fig. 1 denotes a pressure-resistant, suitably stationary reaction vessel. This is intended for discontinuous operation and can be connected to the product to be treated, e.g. B. a suspension.
  • the generally flowable product can be discharged after treatment has been carried out via an organ 3 arranged at the lowest point of the base 2.
  • the reaction container 1, which is rotationally symmetrical with respect to the axis 4 is loaded with the suspension up to a level 5, and it can the upper region 6 with an outlet line 7 for a gaseous reaction product, for. B. steam.
  • the outlet line 7 first leads to a reflux condenser 8, in which a partial condensation takes place, a component of the steam condensing and flowing back into the reaction vessel 1.
  • the remaining vaporous product is finally condensed in a condenser 9 and is present at point 10 as a liquid product which may be further processed.
  • process heat can additionally and extremely effectively be removed from the reaction vessel 1 in this way.
  • the insert body 11 denotes an insert body which is rotationally symmetrical with respect to the axis 4 and extends through the upper region 6 and into the reaction vessel 1 and ends at a distance from the bottom 2 and has an end face 12 which is open on the underside.
  • the jacket section of this insert body 11 is provided in the vicinity of the upper region 6 with a series of openings 13 which are circular in cross section and are arranged in a preferably uniform circumferential distribution and which provide continuous connections between the interior 14 of the insert body 11 and the one between the outer sides and the facing inner sides of the reaction container 1 extending annular space 15 form.
  • the insert body 11 is, moreover, sealingly inserted into an opening 16 formed in the upper region 6 of the reaction container 1 and is also sealed on the upper side by a circular end plate 17. This end plate 17 is to assembly and Inspection purposes preferably releasably attached to the insert body 11.
  • reaction vessel 18 with a system of the outer jacket surface of the reaction vessel 1 uniformly covering, serving to guide a heat transfer medium half-pipe coils is referred to, which form a closed cable that is connected in a manner not shown in the drawing with a suitable heat source or a heat sink.
  • This system 18 is used in accordance with the process of heating or cooling of the suspension mentioned within the reaction container 1.
  • the reaction vessel can also be equipped with a double-walled jacket for guiding a heat transfer medium.
  • the reaction vessel 1 including the system 18 is otherwise provided - in a manner not shown in the drawing - with a heat-insulating coating, so that the process temperature within the reaction vessel 1 can be largely controlled independently of the ambient temperature.
  • the lower end face 21 extends at a short distance from the underside end face 12 of the insert body 11.
  • a drive shaft is designated, which is in operative connection with a drive unit 23 arranged outside the reaction container 1 and thus extends through the end plate 17.
  • a drive unit 23 arranged outside the reaction container 1 and thus extends through the end plate 17.
  • any preferably speed-controllable electric drive can be used as the drive unit 23, with speed control via an adjustment gear or depending on the type of electric drive on a purely electrical basis, for. B. can be done via a frequency control.
  • the drive shaft 22 which runs coaxially with the axis 4, extends through both front sieve plates of the grinding basket 19 and is otherwise suitably mounted on this grinding basket and / or the insert body 11.
  • the grinding basket 19 Within the grinding basket 19, it carries a plurality of axially spaced grinding discs 24, preferably designed as perforated discs, the respective periphery of which extends at a distance from the facing inner sides of the grinding basket 19.
  • grinding balls which may have a diameter of 1 mm to 5 mm, for example, and are made of ceramic, e.g. B. on the basis of aluminum oxide or zirconium oxide, made of glass or metal, for. B. stainless steel or other steel.
  • These grinding balls 25 can, for example, fill approximately 80% of the volume of the grinding basket 19.
  • the holes made in the grinding disks 24 can be formed by any geometric shape, e.g. B. slots, spirals, crosses, etc. are formed. Their purpose is to transmit the rotary movement of the grinding disks 24, which are connected in a rotationally fixed manner to the drive shaft 22, to these grinding balls 25, to exert a comminution effect on the solids moving through the grinding basket 19 and to reduce the flow resistance of the suspension through the grinding bed .
  • Conveyor elements such as a lower-side propeller stirrer 26, which is located below the end face 21, and an upper-side propeller stirrer 26, 27, which is located above the upper end face 20, are also in a rotationally fixed connection. It is the direction of rotation of the propeller stirrers 26, 27 and z. B. the pitch angle of the wing chosen such that within the suspension filling the reaction vessel 1 there is a global flow from bottom to top in the direction of the arrows 28 within the insert body 11, thus flowing through the grinding bed.
  • the conveying effect of the propeller stirrers 26, 27 is supported in that they are located within the casing of the insert body 11, so that a guiding effect is exerted on the suspension flow.
  • 3 ′ denotes a number of strips which act as baffles and are arranged inside the insert body 11 above the end face 20.
  • the reaction vessel 1 is designed to be pressure-resistant and can be heated or cooled in accordance with the heat transfer medium flowing in the system 18. It forms a hermetically sealed system within which Milling processes can be carried out under simultaneous heterogeneous reactions under vacuum or overpressure conditions.
  • the reaction container 1 forms a simple, compact reaction system which does not require any external units and can be used in particular in the case of rheologically difficult substance systems.
  • the essential feature of the reaction container 1 shown in FIG. 2 is an insert body 28 'which extends coaxially to the axis 4, within which a drive shaft 29 is mounted, which in turn extends coaxially to the axis 4.
  • a plurality of axially spaced grinding disks 24 are connected to the drive shaft 29 in a rotationally fixed manner, and their nature and purpose correspond to those according to FIG. 1.
  • the insert body 28 ' has a conical widening 30 on its underside, and there is a grinding basket 31 within the insert body 28', namely its lower region, the upper and lower end faces 32, 33 of which are again designed in the manner of sieve plates.
  • the vessel or the strainer basket can also be structurally formed only by the mentioned end faces 32, 33 and otherwise by the walls of the insert body 28 '.
  • the lower end face 33 also forms the end of the insert body 28 '. However, the latter is not absolutely necessary.
  • the space axially delimited by the end faces 32, 33 serves to receive grinding balls 25.
  • the drive shaft 29, which ends at the lower end at a distance above the lower end face 33, thus ends within the grinding cage 31, is hollow and serves to coaxially accommodate it a further drive shaft 34, which extends through the entire length of the drive shaft 29, thus also through the grinding basket 31 and carries a stirring element in the manner of an anchor stirrer 35 at its end protruding from the lower end face 33.
  • the agitator blades of this agitator engage around the lower end of the insert body 28 at a distance and protrude into the annular space 36 existing between the outside of the insert body 28 'and the facing inside of the reaction container 1.
  • 3 ′′ denotes a further bar functioning as a current breaker within the annular space 36, which extends in the immediate vicinity of the impeller of the anchor stirrer 35.
  • a conveying element in the manner of a propeller stirrer 37 which, in connection with the direction of rotation of the drive shaft 29, is such that it is within the suspension of the reaction container 1 within the insert body 28 ', thus flowing through its grinding bed, producing an upward flow in the direction of the arrows 28.
  • This flow causes the suspension to pass through the openings 13 into the annular space 36 and a globally sinking flow within the annular space 36 towards the lower end face 33 of the insert body 28 ', in which a suction effect is developed due to the action of the propeller stirrer 37.
  • Anchor mixers are generally used at lower speeds operated as a propeller stirrer, so that in this embodiment according to FIG. 2 separate drives are provided for these different stirrer types.
  • Separate drives are provided for the grinder, namely the system of the grinding disks 24 including the propeller stirrer 37 on the one hand and for the anchor stirrer 35 on the other hand, which in turn are preferably designed to be speed-controllable.
  • 38 is a drive unit which is connected to the drive shaft 34.
  • a further drive unit is designated by 39, but is only indicated in the drawing by means of a drive wheel which is connected to the armature shaft 29 in a rotationally fixed connection.
  • the drive shafts 29, 34 can be operated at different speeds and, if necessary, with different directions of rotation, depending on their different intended uses. In this way, there are refined possibilities for adjusting the flow field according to the rheological properties of the suspension to be treated within the reaction container 1.
  • the grinding basket is arranged centrally with respect to the reaction container 1, namely coaxially with respect to its axis 4.
  • the insert body 41 therein which contains a grinding basket 40, is cylindrical, but is arranged eccentrically with respect to the reaction container 1.
  • the axis 42 of the insert body 41 extends parallel to the axis 4 of the reaction container 1.
  • a drive shaft 43 extends in the direction of this axis 42, which penetrates an upper end plate 44 of the insert body 41 and at its lower end inside the grinding basket 40 ends.
  • the drive shaft 43 also carries a propeller stirrer 46 above the upper end face 45 of the grinding cage 40, which is designed in coordination with the direction of rotation of the drive shaft 43 such that it creates an upward pull in the direction of arrows 28 within the suspension, which thus flows through the grinding bed.
  • the drive shaft 43 is connected outside the insert body 41 to a drive unit 48, which can be designed similarly to the drive unit 23 (FIG. 1).
  • the insert body 41 is sealingly inserted into an eccentrically arranged opening 49 of the upper region 6 of the reaction container 1, which - as indicated in the exemplary embodiment shown - for example via an annular flange-like support of a pipe socket 50 attached to the reaction container 1 and extending coaxially to the axis 42 can happen.
  • a coaxial to the axis 4 of the reaction vessel 1, at its lower end adjacent to the bottom 2 is an agitator in the manner of a turbine stirrer 51 carrying drive shaft.
  • This is connected outside the reaction container 1 to a drive unit 53, which can be designed similarly to the drive unit 48.
  • a drive unit 53 which can be designed similarly to the drive unit 48.
  • separate drives are also provided in this embodiment.
  • the eccentric arrangement of the insert body 41 effectively acts like a baffle within the reaction vessel 1.
  • the turbine stirrer 51 generates a flow field which supports the suspension flow through the insert body 41 and thus the grinding bed.
  • An essential feature of the exemplary embodiment shown in FIG. 4 is that the grinding basket 54 there, the upper and lower end faces 45, 47 of which are in turn formed by sieve plates, is arranged in a cylindrical tube chamber 55 which is located outside the reaction vessel 1 and whose axis is, however extends parallel to its axis 4.
  • the tube chamber 55 tapers above and below, in each case following the end faces 45, 47 and is in continuous communication with the interior of the reaction container 1 via tube elbows 56, 57 and connecting pieces 58, 59.
  • a suspension stream can thus be branched off from the reaction vessel 1 in the direction of the arrows 60, which flows through the grinding bed of the grinding basket 54 and is returned to the reaction vessel 1.
  • 61 denotes an insert which is rotationally symmetrical with respect to the axis 4, is drawn in in a conical funnel-like manner towards the bottom 2 and ends in a central circular opening 62.
  • Extending through the opening 62 is the drive shaft 52, which carries a conveying element designed in the manner of an anchor stirrer 63 and above this opening 62 in the manner of a turbine stirrer 64. Solids that are deposited on the top of the insert 61 slide downward under the force of gravity on this surface in order to reach the area of action of the anchor stirrer 63 via the opening 62.
  • the anchor stirrer 63 thus supports the flow in the direction of the arrows 60.
  • One effect of the insert 61 is that an increase in the suspension along the inner wall of the reaction vessel 1 is limited in the area covered by the anchor stirrer 63, which also affects the conveying effect exerted Direction of arrows 60 improved.
  • the essential feature of the exemplary embodiment shown in FIG. 5 is a grinding basket 65, the upper and lower end faces 66, 67 of which are formed by closed circular plates.
  • the jacket sections 68, 69 adjoining the end faces 66, 67 are designed in the manner of a sieve, so that a suspension flow is possible via these sections 68, 69.
  • the jacket sections 68, 69 each protrude in a rotationally symmetrical arrangement into enlarged cylindrical sections 70, 71 of an insert body, within which the drive shaft 22 extends in a manner corresponding to the exemplary embodiment according to FIG. 1, with which - in each case above and below the grinding basket 65 - A propeller stirrer 27, 26 is in a rotationally fixed connection.
  • the insert body 11 'formed by the cylindrical sections 70, 71 and the grinding basket 65 corresponds functionally to the insert body 11 according to FIG. 1.
  • the suspension to be treated flows via the lower end face 12 of the insert body 11 'into the lower cylindrical section 71 and is introduced radially via the casing section 69 into the grinding bed, which it has at the upper end of the
  • the grinding basket 65 in turn leaves radially in order to enter the cylindrical section 70 and to leave it again via the radially directed openings 13. In this way, an axially downward flow occurs globally in the outer annular space 15 of the reaction container 1.
  • the massive configuration of the end faces 66, 67 in the manner of circular plates in the exemplary embodiment according to FIG. 5 enables improved mounting for the drive shaft 22 which is passed through these plates and an enlargement of the screen area.
  • Each insert body is equipped with suitable openings for removing and filling in the grinding balls.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Disintegrating Or Milling (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Vehicle Body Suspensions (AREA)
EP97104850A 1996-04-03 1997-03-21 Dispositif de traitement de suspensions Expired - Lifetime EP0799643B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19613366A DE19613366A1 (de) 1996-04-03 1996-04-03 Vorrichtung zur Behandlung von Suspensionen
DE19613366 1996-04-03

Publications (2)

Publication Number Publication Date
EP0799643A1 true EP0799643A1 (fr) 1997-10-08
EP0799643B1 EP0799643B1 (fr) 2002-01-16

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EP97104850A Expired - Lifetime EP0799643B1 (fr) 1996-04-03 1997-03-21 Dispositif de traitement de suspensions

Country Status (5)

Country Link
US (1) US5934579A (fr)
EP (1) EP0799643B1 (fr)
JP (1) JP3527612B2 (fr)
AT (1) ATE211949T1 (fr)
DE (2) DE19613366A1 (fr)

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RU2389539C2 (ru) * 2005-04-29 2010-05-20 ИКА-Верке ГмбХ унд Ко. КГ Перемешивающее или диспергирующее устройство
EP2199086A1 (fr) * 2008-12-19 2010-06-23 Kba-Metronic Ag Cartouche d'encre
CN103769276A (zh) * 2014-01-22 2014-05-07 武汉科技大学 一种精细控温研磨装置
CN109939790A (zh) * 2017-12-21 2019-06-28 深圳市微纳达智能设备有限公司 一种立式无筛网出料介质搅拌磨
CN111620707A (zh) * 2020-06-09 2020-09-04 江苏脒诺甫纳米材料有限公司 一种复合锆英粉及其制备方法

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AU2002303836A1 (en) * 2001-05-23 2002-12-03 E.I. Du Pont De Nemours And Company High pressure media and method of creating ultra-fine particles
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US20050258288A1 (en) * 2003-11-26 2005-11-24 E. I. Du Pont De Nemours And Company High pressure media milling system and process of forming particles
US20090319395A1 (en) * 2007-12-13 2009-12-24 Kitaru Innovations Inc. Method of selling and shipping a product utilizing the internet
US9061477B2 (en) 2007-12-13 2015-06-23 Kitaru Innovations Inc. Method and apparatus for making, shipping and erecting boxes
US8047459B2 (en) * 2008-06-28 2011-11-01 D Errico Edward Co-axial basket mill and method of use
JP5599573B2 (ja) 2009-04-10 2014-10-01 出光興産株式会社 固体電解質粒子からなるガラス及びリチウム電池
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DE102010053484A1 (de) * 2010-12-04 2012-06-06 Netzsch-Feinmahltechnik Gmbh Dynamisches Element für die Trenneinrichtung einer Rührwerkskugelmühle
DE102011076019A1 (de) 2011-05-18 2012-11-22 Evonik Goldschmidt Gmbh Alkoxylierungsprodukte und Verfahren zu ihrer Herstellung mittels DMC-Katalysatoren
KR101163481B1 (ko) 2012-02-20 2012-07-18 이건의 필터 및 씰링이 필요없는 습식 분쇄장치
CN102631969A (zh) * 2012-03-30 2012-08-15 中国科学院东北地理与农业生态研究所 土壤或植物样品撞碎机
US9304066B2 (en) 2012-04-11 2016-04-05 Stat-Diagnostica & Innovation S.L. Fluidically integrated rotary bead beader
US8376252B1 (en) * 2012-09-13 2013-02-19 Hockmeyer Equipment Corp. Producing nanometer-range particle dispersions
DE102013208328A1 (de) 2013-05-07 2014-11-13 Evonik Industries Ag Polyoxyalkylene mit seitenständigen langkettigen Acyloxyresten und Verfahren zu ihrer Herstellung mittels DMC-Katalysatoren
DE102013111762A1 (de) * 2013-07-08 2015-01-08 Netzsch-Feinmahltechnik Gmbh Rührwerkskugelmühle mit Axialkanälen
DE102014209408A1 (de) 2014-05-19 2015-11-19 Evonik Degussa Gmbh Ethoxylatherstellung unter Verwendung hoch aktiver Doppelmetallcyanid-Katalysatoren
CN105854688B (zh) * 2015-01-20 2018-09-28 国泰涂料油墨股份有限公司 研磨混合机及研磨混合装置
LT3168273T (lt) 2015-11-11 2018-09-10 Evonik Degussa Gmbh Polimerai, galintys sudaryti skersinius ryšius
EP3321304B1 (fr) 2016-11-15 2019-06-19 Evonik Degussa GmbH Mélanges de siloxanes ramifiés-cycliques de type d/t et leurs produits secondaires
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CN110773034B (zh) * 2019-11-18 2021-12-07 华东交通大学 一种可实现均匀混料的颗粒/介质悬浮液循环搅拌供给装置
GB202105249D0 (en) * 2021-04-13 2021-05-26 Sharon Tal Device and method of grating payload substance combined with grinding and stirring function
RU206931U1 (ru) * 2021-07-05 2021-10-01 Федеральное государственное бюджетное научное учреждение «Федеральный научный центр пищевых систем им. В.М. Горбатова» РАН Устройство для тонкого измельчения сыпучих материалов

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB489171A (en) * 1937-01-19 1938-07-19 William Langsdorf Improvements in paint and like mixing and grinding machines
DE2423376A1 (de) * 1973-05-15 1974-12-05 Union Process International Verfahren und vorrichtung zum mahlen von in einer fluessigkeit suspendierten feststoffteilchen
US3892364A (en) * 1974-05-09 1975-07-01 Henry L Lomasney Apparatus and method for dispersing and comminuting the solid in a solid-liquid mixture
EP0546715A1 (fr) * 1991-12-03 1993-06-16 Hockmeyer Equipment Corp. Broyeur à panier comportant une médiaire et procédé
DE4425906A1 (de) * 1994-07-21 1996-01-25 Netzsch Erich Holding Naßmahlsystem
US5497948A (en) * 1995-05-16 1996-03-12 Hockmeyer Equipment Corp. Basket media mill with extended impeller

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3998938A (en) * 1971-07-27 1976-12-21 Union Process International, Inc. Method and apparatus for grinding particulate solids
EP0379588B1 (fr) * 1988-06-10 1996-03-27 Kubota Corporation Procede de broyage et de pulverisation
DE3838981A1 (de) * 1988-11-18 1990-05-23 Eirich Walter Ruehrwerkskugelmuehle
JP2575498Y2 (ja) * 1993-01-08 1998-06-25 三井鉱山株式会社 粉砕機の構造
DE29518987U1 (de) * 1995-09-09 1996-02-15 Getzmann, Hermann, 51580 Reichshof Dispergiervorrichtung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB489171A (en) * 1937-01-19 1938-07-19 William Langsdorf Improvements in paint and like mixing and grinding machines
DE2423376A1 (de) * 1973-05-15 1974-12-05 Union Process International Verfahren und vorrichtung zum mahlen von in einer fluessigkeit suspendierten feststoffteilchen
US3892364A (en) * 1974-05-09 1975-07-01 Henry L Lomasney Apparatus and method for dispersing and comminuting the solid in a solid-liquid mixture
EP0546715A1 (fr) * 1991-12-03 1993-06-16 Hockmeyer Equipment Corp. Broyeur à panier comportant une médiaire et procédé
DE4425906A1 (de) * 1994-07-21 1996-01-25 Netzsch Erich Holding Naßmahlsystem
US5497948A (en) * 1995-05-16 1996-03-12 Hockmeyer Equipment Corp. Basket media mill with extended impeller

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2777807A1 (fr) * 1998-04-24 1999-10-29 Gerard Rousselle Turbine de mise en circulation d'une masse de matiere de viscocite determinee
RU2389539C2 (ru) * 2005-04-29 2010-05-20 ИКА-Верке ГмбХ унд Ко. КГ Перемешивающее или диспергирующее устройство
EP2199086A1 (fr) * 2008-12-19 2010-06-23 Kba-Metronic Ag Cartouche d'encre
CN103769276A (zh) * 2014-01-22 2014-05-07 武汉科技大学 一种精细控温研磨装置
CN109939790A (zh) * 2017-12-21 2019-06-28 深圳市微纳达智能设备有限公司 一种立式无筛网出料介质搅拌磨
CN111620707A (zh) * 2020-06-09 2020-09-04 江苏脒诺甫纳米材料有限公司 一种复合锆英粉及其制备方法
CN111620707B (zh) * 2020-06-09 2022-07-08 江苏脒诺甫纳米材料有限公司 一种复合锆英粉的制备方法

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DE19613366A1 (de) 1997-10-09
JP3527612B2 (ja) 2004-05-17
US5934579A (en) 1999-08-10
EP0799643B1 (fr) 2002-01-16
JPH1028891A (ja) 1998-02-03
ATE211949T1 (de) 2002-02-15
DE59705981D1 (de) 2002-02-21

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