US3653600A - Apparatus for dispersing finely divided solid particles in a liquid vehicle - Google Patents

Apparatus for dispersing finely divided solid particles in a liquid vehicle Download PDF

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Publication number
US3653600A
US3653600A US845223A US3653600DA US3653600A US 3653600 A US3653600 A US 3653600A US 845223 A US845223 A US 845223A US 3653600D A US3653600D A US 3653600DA US 3653600 A US3653600 A US 3653600A
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Prior art keywords
separator
vessel
outlet
rotor
inlet
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US845223A
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English (en)
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George R Schold
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GEORGE R SCHOLD
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GEORGE R SCHOLD
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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
    • B02C17/161—Arrangements for separating milling media and ground material

Definitions

  • ABSTRACT A continuous duty, fully enclosed apparatus for deagglomerating solid, insoluble particles such as pigments and for uniformly distributing and dispersing the particles in a liquid vehicle which involves the utilization of a dispersing media such as steel shot which is retained in a vertically disposed generally cylindrical mixing vessel and agitated by rotating impellers or agitator discs connected to a drive shaft.
  • the apparatus utilizes a rotor separator device connected to and driven by the drive shaft near the vessel outlet to separate media from the finished product just prior to discharging the latter from the mill apparatus.
  • the dispersing media which is generally heavier than the product being processed usually is thrown outwardly it naturally has a wearing effect on the screen separator associated with the apparatus. This is so whether the media used is metal shot or sand or other material. Obviously, there is a limit as to how large the openings in the screen separator can become. With some wear, larger openings gradually may appear in the screen separator. As larger openings are created in the screen separator, probabilities of allowing larger pieces of media to pass through the screen and into the finished product are increased.
  • an object of this invention is to provide an improved apparatus for deagglomerating solids and for dispersing finely divided particles in a liquid vehicle.
  • Another object is to provide rotor separator means operatively associated with a drive shaft for separating dispersing media from processed product.
  • Another object is to provide an improved apparatus for deagglomerating solids and for dispersing finely divided particles in a liquid vehicle wherein the centrifugal forces present during operation of the apparatus are effective generally to propel dispersing media away from the rotor separator and out of the normal path of flow to the outlet.
  • Still another object is to provide a rotor separator means for separating dispersing media from processed product wherein the rotor separator is driven by the agitator drive shaft and wherein processed product is forced through the rotor separator in opposition to centrifugal forces which are effective to propel dispersing media away from the rotor separator.
  • Another object is to provide a seal arrangement associated with the rotor separator which will insure that all processed product passes through the rotor separator before being discharged through the outlet of the apparatus.
  • a further object is to provide an improved double seal structure including a primary seal means which will be effective to separate the inlet to the rotor separator from the vessel outlet and a secondary seal means which will be effective to prevent finished product from reaching the drive shaft bearings.
  • Another object is to provide a seal arrangement whereby the shaft bearings are not subject to contact with unfinished product which has dispersing media in it.
  • Another object is to provide a scavenging means in the apparatus which is effective to remove undesirable small particles of dispersing media from the product being processed.
  • FIG. 1 is a cut-away view in elevation of apparatus embodying the present invention
  • FIG. 2 is an enlarged sectional view in elevation of the upper portion of the apparatus of FIG. 1; illustrating one embodiment of a rotor separator;
  • FIG. 3 is a plan view of the rotor separator taken along the line 3-3 of FIG. 2;
  • FIG. 4 is a view in elevation of another embodiment of a rotor separator
  • FIG. 5 is a plan view of the rotor separator taken along line 5-5 of FIG. 4;
  • FIG. 6 is a view in elevation taken along line 6-6 of FIG. 3 showing deflector blades
  • FIG. 7 is a sectional view in elevation of the upper portion of an apparatus of the type shown in FIG. 1 showing a third embodiment of a rotor separator and its position in the apparatus;
  • FIG. 8 is a plan view of the rotor separator of FIG. 7 taken along line 8-8 of FIG. 7;
  • FIG. 9 is another embodiment of a rotor separator generally similar to that of FIG. 2.
  • the dispersing apparatus 10 comprises a generally cylindrical vessel 12, a rotatable agitator shaft 14, a drive unit 16 for driving the shaft 14, a plurality of impellers or agitators 18 mounted on the shaft 14, and a rotor separator 20 secured to the shaft 14.
  • the vessel 10 and drive unit 16 usually are mounted on a suitable supporting frame 21.
  • a pump 22 is associated with the mill to introduce premixed material into the vessel 12 to be processed.
  • a circumferential jacket 24 is radially spaced from the vessel 12 to form therewith a chamber 26 through which a temperature controlling fluid may be circulated by means of inlet and outlet connections 28 and 30 at the upper and lower parts of the chamber 26.
  • the vessel is partially filled with a dispersing media 29 such as steel shot, for example, but other type of dispersing media can also be used.
  • a dispersing media 29 such as steel shot, for example, but other type of dispersing media can also be used.
  • steel shot the vessel preferably is filled only about half way.
  • the vessel 12 is closed at both its upper and lower ends.
  • An inlet 31 is formed in the lower end of the vessel through which a product to be processed is pumped from pump 22 via conduit 33.
  • An outlet is disposed at the upper end of the vessel.
  • the upper end of the vessel 12 has secured thereto a cover plate 32 which closes the upper end of the vessel.
  • the cover plate may be formed as an integral part of the shaft bearing housing 34.
  • the cover plate 32 may be secured to the vessel 12 by suitable means such as bolts 36 and may be constructed so as to form the upper end closure for the cylindrical chamber 26 surrounding the vessel.
  • Fin means 38 may be provided throughout all or a part of the length of the vessel 12 to increase the cooling area.
  • the fin means may comprise, e.g., an Acme thread formed on the outside of vessel 12.
  • the shaft 14 is rotatably supported in the axially extending bearing housing 34 in a conventional manner by upper and lower bearings 40 and 42.
  • Secondary sealing means 44 which may comprise a pair of spring biased lip seals 44a and 44b of conventional construction, are disposed around the shaft 14 below the lower bearing 42 to prevent processed product from reaching the shaft bearings 40 and 42.
  • a product outlet 46 is formed in the bearing housing 34 below the sealing means 44.
  • the drive unit 16 may include a variable speed motor 41 drivingly connected to the shaft 14 by a belt and pulley arrangement 43 and an adjustable control 45 for varying the tension on the belt and pulley arrangement to provide additional shaft speed control.
  • a plurality of circumferentially spaced deflector plates 48 may be secured to the inner wall of the vessel 12 at angles preferably of approximately 45. This angle, however, is not critical.
  • the deflector plates are positioned generally immediately below the rotor separator 20 as best illustrated in FIG. 2 and above the uppermost of the impellers 18. Cut-away portions 48a may be formed in the deflector plates whereby the upper portions 49 of the deflector plates may extend upwardly to a position adjacent the outer periphery of the rotor separator. These deflector plates assist in preliminarily separating some of the dispersing media from the fluid mixture before the latter reaches the vicinity of the rotor separator.
  • the rotor separator 20 comprises an annular member 50 on the lower end of which is formed a hub portion 52 for securing the separator 20 to the shaft 14 such as by set screws 54 or other suitable means.
  • a locking collar 56 secured to the shaft by one or more set screws may also be provided under and adjacent hub 52 to secure the separator 20 more firmly in place.
  • the annular member 50 is of sufficient axial thickness to permit the formation therein of a plurality of rows (here shown as three in number) of circumferentially spaced generally radially extending holes or passages 58, 60 and 62. The outer ends of these passages constitute the inlet to the rotor separator. As will be observed from FIG.
  • these passages extend inwardly and upwardly at an angle of approximately with a plane normal to the axis of the rotor separator although this angle is not critical.
  • the holes 58, 60 and 62 are not formed in a truly radial direction but rather at an angle A of approximately 15 with the radii of the annular member 50 as best seen in FIG. 3.
  • the shaft 14 and rotor separator in operation rotate clockwise as viewed in FIG. 3.
  • the rotor separator 20 is formed with a bore 64 through which the shaft 14 extends in a sliding fit relationship, the separator then being secured to the shaft 14 as previously explained.
  • An enlarged bore portion 66 is formed in the upper portion of the separator to define with the shaft an exit chamber or outlet chamber 68 with which the rows of passages 58, 60 and 62 communicate.
  • This chamber 68 is extended upwardly by the formation on the separator 20 of an axially extending cylindrical flange 70.
  • a primary seal means 72 is associated with the rotor separator and comprises a rotating face seal assembly 74 attached to the rotor separator and stationary face seal means 76 supported on the bearing housing 34.
  • the rotating face sea] assembly 74 includes a case and spring assembly 77 mounted on and secured to axially extending flange 70 of the rotor separator 20 and rotating face seal means 78 attached to the upper end of the case and spring assembly.
  • the stationary face seal means 76 is secured in a stationary seal gland 80 which is secured to the lower end of the bearing housing 34 by suitable means such as bolts 81.
  • the stationary face seal means 76 cooperates with the rotating face seal assembly 74, a spring 77a in the case and spring assembly 77 urging the rotating seal 78 against the stationary seal 76.
  • a bore 82 is formed in the seal gland 80 and spaced from shaft 14.
  • the face seal means 76 also is radially spaced from the shaft 14. Thus an opening 83 is defined between the shaft and seal gland and face seal means to provide a path of fluid communication between exit chamber 68 and a discharge chamber 84 from which leads outlet 46.
  • the primary sealing means 72 including the cooperating stationary face seal means 76 and rotating face seal means 78 assures that no product is discharged through outlet 46 without passing through the rotor separator 20.
  • a filter member 88 may be positioned on the outer axially extending surface 90 of the annular member 50 to prevent dispersing media from entering the passages 58, 60 and 62.
  • the filter member 88 may be one of a variety of conventional filtering screens. It has been discovered with certain products to be processed, however, that a filtering screen is in fact unnecessary, the centrifugal force applied to the dispersing media during agitation being sufficient to prevent radially inward movement thereof through the passages 58, 60 and 62. It is preferable, however, to use a filter member 88.
  • a scavenger port 92 is provided in the upper end of the mill 10 extending through both the vessel 12 and jacket 24. Its purpose is to collect small particles of dispersing media that may break off from the media being used. These small particles are sometimes referred to as fines.
  • the scavenger port may be defined by a small tubular member 93 extending through and secured in the vessel 12 and jacket 24.
  • a screen filter member 94 of predetermined mesh is secured in place at the inner end of the tubular member 93.
  • the port is closed by a removable cover plate 95 which may be secured in place by nut and bolt means 96 or other suitable means.
  • the cover plate 95 may be formed with a tubular extension 97 which slides into the tubular member 93 and up against the screen member 94 to help hold the screen in place. O-ring seal means 98 may be disposed on the extension 97 to provide an adequate sea]. It will be apparent that as processed material is moved into the upper part of the mill and centrifugal force tends to throw the dispersing media outwardly, fines of such size as are capable of passing through screen 94 will do so and collect in the scavenger port 92 until removed.
  • a discharge port 99 in the cover plate 95 may be fitted with a small valve 100 to allow flushing of the scavenged materials at selected intervals.
  • a small magnet 101 attached to the inside of the cover plate further assists in removing fines" from the dispersing media.
  • Opening 102 may be provided in the cover plate as a convenient location for a pressure gauge.
  • the port 92 is located substantially opposite the rotor separator. Thus the port 92 may be used as an inspection port to view the rotor separator when the cover plate 95 and screen 94 are removed.
  • Dispersing media such as steel shot is introduced into the vessel 12 through a suitable opening (not shown) provided in the cover plate, for example.
  • the vessel may be filled with dispersing media up to a point substantially even with the upper agitator disc 18, for example. Sometimes less can be used, but, generally, more is not required.
  • Temperature control fluid is circulated through the chamber 26.
  • Premixed material including a liquid vehicle and agglomerated pigment material for example, is fed from a storage tank (not shown) to the pump 22 which forces the material under pressure through conduit 33 and through inlet 31 into the vessel 12.
  • the premixed material is forced up through the dispersing media while the media is being agitated by rotation of the shaft 14 and the discs 18 associated therewith.
  • the pump functions to create a pressure differential between the inlet to and outlet from the vessel, and
  • the premixed materials is moved through the vessel at a controlled rate of flow. It will be appreciated that it is within the scope of the invention herein to use other means than a pump for creating the requisite pressure differential such, for example, as a controlled gravity feed.
  • the primary seal means 72 prevents processed product from reaching discharge chamber 84 without having passed through rotor separator 20.
  • the secondary seal means 44 prevents finished product from penetrating the shaft bearings 40 and 42.
  • the dispersing media normally being heavier than the liquid mixture, i.e., the product being processed, the media is thrown outwardly and generally away from the entrances to the passages 58, 60 and 62 in the member 50.
  • centrifugal force is utilized to advantage to effectively direct the dispersing media away from the rotor separator and from the screen filter means.
  • FIGS. 4 and 5 A slightly different embodiment of a rotor separator designated as 120 is shown in FIGS. 4 and 5.
  • the separator comprises an annular member 150 having a central bore 164 for receiving the shaft 14 therethrough.
  • One or more set screws 154 may be utilized to secure the separator to the shaft 14.
  • a single plane of circumferentially spaced and generally radially extending passages 158 are formed in the separator and communicate with an enlarged bore portion 166 which together with the shaft defines a chamber 168 which will communicate with discharge chamber 84 in the same manner as chamber 68 shown, in FIG. 2.
  • these passages 158 form an angle A of approximately with the radii of the rotor separator 120.
  • An enlarged bore 169 in the upper portion of the separator forms a seat for a face seal assembly adapted to cooperate with another stationary seal assembly secured to a seal gland member which is in turn secured to the bearing housing 34 and as further described in connection with the modification illustrated in FIGS. 7 and 8.
  • a filter means 188 comprising a conventional screen member of a selected mesh may be positioned at the outer periphery of the separator 120.
  • the upper part of the annular member 150 may be formed with a radially extending flange 151 on the underside of which is formed a groove 153 for receiving the upper end of the filter means.
  • the lower end of the member 150 may be adapted to have secured thereto by bolts or other suitable means an annular flange 157 for securing the filter means 188 between the flange 151 and the flange 157.
  • FIGS. 7 and 8 Still another embodiment of a rotor separator is shown in FIGS. 7 and 8 and is designated as 220.
  • the separator comprises a more elongated form of annular member 250 which has a hub portion 252 with a bore 264 for receiving the shaft 14 therethrough.
  • One or more set screws 254 in the hub 252 secure the separator 220 to the shaft.
  • a plurality of circumferentially spaced openings or passageways 258 are formed in the wall of the separator and are here shown as being four in number.
  • An enlarged bore portion 266 communicates with openings 258 and together with shaft 14 defines a chamber 268 from which material flows upwardly to discharge chamber 84.
  • a counterbore 269 in the upper portion of the separator forms a seat for a rotating face seal means 278 which rotates with the shaft 14 and separator 220.
  • the seal assembly 178 cooperates with a stationary face seal assembly 276 attached to a stationary spring and case assembly 274 which is positioned and supported in a bore 281 formed in a stationary seal gland 280. The latter is secured to the cover plate 32.
  • a filter means 288 comprising a conventional screen member of a selected mesh may be positioned at the outer periphery of the separator. It may be held in place by a ringlike flange member 257 which slides over the hub and is held in place by a pair of lock nuts 259 and 261 screwed onto hub.
  • the case and spring assembly 274 is associated with the stationary face seal rather than with the rotating face seal as shown in the embodiment of FIG. 2. This same arrangement would be used with the rotor separator shown in FIGS. 4 and 5.
  • the primary seal means 72 associated with the rotor separator 20 of FIGS. 2 and 3 could also be modified to place the case and spring assembly in association with the stationary seal means.
  • FIG. 7 also illustrates another position of deflector plates here designated as 248 showing them at a slightly lower position with respect to the rotor separator than is the case in FIG. 2. They would also be placed at an angle as explained in connection with FIGS. 2 and 6.
  • FIG. 9 shows still another modification of a rotor separator designated as 320. It is generally of the same type as that illustrated in FIG. 2 with the exception that it is constructed to support a case and spring assembly in an enlarged bore 370 inside the member 350 rather than having the case and spring assembly being supported on the outside of a cylindrical flange 70 (See FIG. 2).
  • a rotating face seal means cooperates with a stationary face seal means in the same manner as illustrated in FIG. 2. Processed material flows in the same manner into exit chamber 68 and upwardly along the shaft to discharge chamber 84 and outlet 46.
  • Apparatus for deagglomerating and dispersing solid particles held in agglomerated form and carried in suspension in a liquid vehicle by the action of a dispersing media on the solids COmpI'lSlngI a mixing vessel having a fluid inlet at the bottom thereof and a fluid outlet in the upper portion thereof, said vessel being adapted to have a charge of dispersing media introduced therein, said inlet also being adapted to be operatively connected to means for introducing a fluid mixture into said inlet under pressure and moving said fluid mixture through said inlet, and through the dispersing media to said outlet;
  • a rotatable shaft extending into said vessel and adapted to be driven from a power source;
  • agitating means operatively associated with said shaft within said vessel for agitating the dispersing media
  • a rotor separator for separating dispersing media from the fluid mixture, said separator being operatively associated with said shaft to be rotatably driven thereby and disposed in the path of flow between said vessel inlet and outlet;
  • sealing means associated with said rotor separator and disposed between the rotor inlet means and the vessel outlet whereby all processed product passes through the rotor separator before reaching the vessel outlet.
  • sealing means includes rotating face seal means attached to the rotor separator and stationary face seal means which cooperates with said rotating face seal means.
  • said rotor separator comprises an annular member, and includes means defining generally transversely extending opening means in said annular member, said rotor inlet means comprising the outer end of said opening means and said rotor outlet means comprising the inner end of said opening means.
  • transversely extending openings in said rotor separator comprise a plurality of circumferentially spaced longitudinally extending inwardly directed passages.
  • said rotor separator comprises an annular member and includes means defining generally transversely extending opening means in said annular member
  • said transversely extending openings in said rotor separator comprises a plurality of circumferentially spaced inwardly extending passages having axes disposed at an angle of approximately with radii of said annular member.
  • sealing means includes rotating face seal means attached to the rotor separator and stationary face seal means which cooperates with said rotating face seal means.
  • the apparatus of claim 1 including filter means disposed over said rotor separator inlet means.
  • the apparatus of claim 1 including a scavenger port for collecting dispersing media particles, said scavenging port extending through the wall of the mixing vessel.
  • the apparatus of claim 1 1 including magnet means associated with said scavenging port to assist in attracting small media particles when the dispersing media being used is magnetically susceptible material.
  • the apparatus of claim 1 including a plurality of deflector plates positioned below said rotor separator to assist in separating dispersing media from processed product.
  • Apparatus for deagglomerating and dispersing solid particles held in agglomerated form and carried in suspension in a liquid vehicle by the action of a dispersing media on the solids comprising:
  • a mixing vessel having a fluid inlet at one end thereof and a fluid outlet at the other end thereof, said vessel being adapted to have a charge of dispersing media introduced thereinto, and said inlet being adapted to be operatively connected to a pump means whereby a fluid mixture may be moved by said pump means under pressure through said inlet and through the dispersing media in said vessel to said fluid outlet;
  • a rotatable shaft extending into said vessel and adapted to be driven from a power source;
  • agitating means connected to said shaft for agitating the dispersing media
  • a rotor separator mounted on said shaft for rotation therewith for separating dispersing media from the fluid mixture, said rotor separator being disposed on said shaft near said fluid outlet and in the path of flow between said vessel inlet and outlet,
  • said rotor separator including means defining generally transversely extending opening means therein defining inlet means thereto and outlet means therefrom adjacent said shaft, said rotor separator outlet means being in fluid communication with said fluid outlet from said vessel.
  • the apparatus of claim 15 including sealing means separating said rotor separator inlet and outlet from each other.
  • a dispersing media separator located interiorly of the mixing vessel so as to be positioned in said flow path and having means for the admission of the processed product thereinto and therethrough so that the product is forced to travel through said dispersing media separator in a direction opposite to that generated by the normal centrifugal force.
  • Apparatus as claimed in claim 17 including a filter screen associated with said separator.
  • Apparatus as claimed in claim 17 including sealing means operatively associated with said separator and disposed between the inlet to the separator and the vessel outlet to thereby constrain the processed product to pass through the separator before reaching the vessel outlet.
  • Apparatus as claimed in claim 17 including a scavenging port extending through the wall of the mixing vessel.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Centrifugal Separators (AREA)
US845223A 1969-07-28 1969-07-28 Apparatus for dispersing finely divided solid particles in a liquid vehicle Expired - Lifetime US3653600A (en)

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US84522369A 1969-07-28 1969-07-28

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US (1) US3653600A (enrdf_load_stackoverflow)
BE (1) BE751221A (enrdf_load_stackoverflow)
CA (1) CA929500A (enrdf_load_stackoverflow)
DE (1) DE2020649C3 (enrdf_load_stackoverflow)
GB (1) GB1302932A (enrdf_load_stackoverflow)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2360920A1 (de) * 1972-12-06 1974-06-12 George R Schold Ruehrwerksmuehle
US4044957A (en) * 1976-02-13 1977-08-30 Schold George R Apparatus for dispersing finely divided solid particles in a liquid vehicle
US4114816A (en) * 1976-03-29 1978-09-19 Schold George R Apparatus for dispersing finely divided solid particles in a liquid vehicle
US4162046A (en) * 1976-07-20 1979-07-24 Pujol Carlos O Horizontal-axle grinder with rotatable sieve
US4394981A (en) * 1980-07-25 1983-07-26 Schold George R Apparatus for dispersing finely divided solid particles in a liquid vehicle with a mechanism for reducing screen clogging
US4441658A (en) * 1981-11-16 1984-04-10 Morehouse Industries, Inc. Sandmill screen mounting assembly
US4730789A (en) * 1982-12-10 1988-03-15 Gebruder Buhler Ag Agitator mill
US5630557A (en) * 1994-12-31 1997-05-20 Omya Gmbh Stirring bead mill with separator to strain out grinding beads
US6209811B1 (en) 1999-11-12 2001-04-03 Jerome Paul Tippet, Sr. Roller-stator disperser
US20120318724A1 (en) * 2010-02-18 2012-12-20 Brown Neal A Enhanced spiral-wound membrane filtration
CN102861637A (zh) * 2012-08-31 2013-01-09 常州市龙鑫化工机械有限公司 一种不堵塞出料分离器的砂磨机
CN107413461A (zh) * 2017-08-02 2017-12-01 嘉善县天成强磁有限责任公司 陶瓷球磨机
CN108636522A (zh) * 2018-04-12 2018-10-12 会理县财通铁钛有限责任公司 一种处理钒钛磁铁矿装置
US10500591B2 (en) 2015-09-02 2019-12-10 Air Products And Chemicals, Inc. System and method for the preparation of a feedstock
CN112844786A (zh) * 2020-12-31 2021-05-28 南京崇枫日用品有限公司 一种水泥加工用磨选粉机防结露设备
CN112969537A (zh) * 2018-11-09 2021-06-15 布勒股份公司 环缝磨
CN113274901A (zh) * 2021-05-14 2021-08-20 程全德 一种可避免搅拌流体中颗粒结块的生石灰搅拌装置

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DE2234076C3 (de) * 1971-07-26 1985-11-14 Meyer AG Zuchwil, Zuchwil Rührwerksmühle
DE3249914C2 (enrdf_load_stackoverflow) * 1982-12-10 1993-06-03 Buehler Ag, Uzwil, Ch
DE4009092C1 (enrdf_load_stackoverflow) * 1990-03-21 1991-05-23 Erich Netzsch Gmbh & Co Holding Kg, 8672 Selb, De
CN108465519B (zh) * 2018-03-25 2024-07-02 南京腾韬工程技术有限公司 一种水泥球磨机活化装置
CN113230926B (zh) * 2021-05-21 2023-08-25 长沙多特新材料有限公司 一种油墨加工用高剪切分散机皮带轮张紧装置

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US1928080A (en) * 1932-11-14 1933-09-26 Charles F Uebelacker Centrifugal separator
US3486705A (en) * 1964-10-30 1969-12-30 Andrew Szegvari Dispersing apparatus

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DE576946C (de) * 1927-02-24 1933-05-26 Anode Rubber Co Ltd Mahlvorrichtung zur Herstellung von Dispersionen in kolloidaler oder nahezu kolloidaler Feinheit
DE1482391B1 (de) * 1964-06-20 1970-08-20 Draiswerke Gmbh Ruehrwerksmuehle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1928080A (en) * 1932-11-14 1933-09-26 Charles F Uebelacker Centrifugal separator
US3486705A (en) * 1964-10-30 1969-12-30 Andrew Szegvari Dispersing apparatus

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2360920A1 (de) * 1972-12-06 1974-06-12 George R Schold Ruehrwerksmuehle
US3844490A (en) * 1972-12-06 1974-10-29 G Schold Apparatus for dispersing finely divided solid particles in a liquid vehicle
US4044957A (en) * 1976-02-13 1977-08-30 Schold George R Apparatus for dispersing finely divided solid particles in a liquid vehicle
US4114816A (en) * 1976-03-29 1978-09-19 Schold George R Apparatus for dispersing finely divided solid particles in a liquid vehicle
US4162046A (en) * 1976-07-20 1979-07-24 Pujol Carlos O Horizontal-axle grinder with rotatable sieve
US4394981A (en) * 1980-07-25 1983-07-26 Schold George R Apparatus for dispersing finely divided solid particles in a liquid vehicle with a mechanism for reducing screen clogging
US4441658A (en) * 1981-11-16 1984-04-10 Morehouse Industries, Inc. Sandmill screen mounting assembly
US4730789A (en) * 1982-12-10 1988-03-15 Gebruder Buhler Ag Agitator mill
US5630557A (en) * 1994-12-31 1997-05-20 Omya Gmbh Stirring bead mill with separator to strain out grinding beads
US6209811B1 (en) 1999-11-12 2001-04-03 Jerome Paul Tippet, Sr. Roller-stator disperser
US20120318724A1 (en) * 2010-02-18 2012-12-20 Brown Neal A Enhanced spiral-wound membrane filtration
US9101884B2 (en) * 2010-02-18 2015-08-11 NAB & Associates, Inc. Enhanced spiral-wound membrane filtration
CN102861637A (zh) * 2012-08-31 2013-01-09 常州市龙鑫化工机械有限公司 一种不堵塞出料分离器的砂磨机
US10500591B2 (en) 2015-09-02 2019-12-10 Air Products And Chemicals, Inc. System and method for the preparation of a feedstock
CN107413461A (zh) * 2017-08-02 2017-12-01 嘉善县天成强磁有限责任公司 陶瓷球磨机
CN108636522A (zh) * 2018-04-12 2018-10-12 会理县财通铁钛有限责任公司 一种处理钒钛磁铁矿装置
CN112969537A (zh) * 2018-11-09 2021-06-15 布勒股份公司 环缝磨
CN112969537B (zh) * 2018-11-09 2023-05-09 布勒股份公司 环缝磨
CN112844786A (zh) * 2020-12-31 2021-05-28 南京崇枫日用品有限公司 一种水泥加工用磨选粉机防结露设备
CN113274901A (zh) * 2021-05-14 2021-08-20 程全德 一种可避免搅拌流体中颗粒结块的生石灰搅拌装置

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BE751221A (fr) 1970-11-03
DE2020649A1 (de) 1971-02-04
DE2020649C3 (de) 1984-08-09
GB1302932A (enrdf_load_stackoverflow) 1973-01-10
CA929500A (en) 1973-07-03
DE2020649B2 (de) 1979-07-26

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