WO2011107062A1 - Vorrichtung zum nassmahlen und dispergieren von feststoffen - Google Patents
Vorrichtung zum nassmahlen und dispergieren von feststoffen Download PDFInfo
- Publication number
- WO2011107062A1 WO2011107062A1 PCT/DE2010/000234 DE2010000234W WO2011107062A1 WO 2011107062 A1 WO2011107062 A1 WO 2011107062A1 DE 2010000234 W DE2010000234 W DE 2010000234W WO 2011107062 A1 WO2011107062 A1 WO 2011107062A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tool
- grinding
- basket
- coolant
- passages
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- 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
- B02C17/02—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 with perforated container
-
- 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 present invention relates to a device for wet milling and dispersing of solids with a grinding basket according to the preamble of claim 1.
- a related device is known from US 5,498,948.
- Basket mills are very flexible. Due to the relatively small volume grinding basket which can be raised and lowered, this grinding device can be quickly transported from one to another grinding container. Also an intervening cleaning process of the grinder and the grinding media located in the grinding basket, usually consisting of balls, is easy to accomplish.
- the grinding basket which is designed to be permeable to ground material over a large part of its surface, makes it easy to access the ground material or a cleaning fluid.
- the material to be ground constantly circulates from the large-volume grinding container into the small grinding basket. Due to the compact design of the grinding and dispersing the tool transmits very intense energy in the grinding basket on the grinding media, whereby a rapid warming of the product, which can be very sensitive to temperature takes place.
- a basket mill with direct cooling of the grinding basket is known.
- the product passes here via a functioning as a funnel lid in the interior of the basket and leaves this basket via a, substantially planar sieve at the bottom.
- the apparatus for wet grinding and dispersing of solids consists of a grinding basket, which is lowered into a container filled with ground material.
- the grinding basket has at least partially screen-like side walls and is fixed to a hollow shaft, which is in communication with a drive.
- a tool that activates the grinding media to transfer the energy transferred from the drive to the tool to the Mahlriads emotions, here balls.
- the resulting heating of the product, the Mahlos redesign and the tool is counteracted by the direct cooling of the tool.
- the tool has one or more cavities and is connected via a pipe that sits inside a hollow shaft with a coolant supply.
- the tube is at the same time the holder, at the end of which the tool sits.
- a further development according to the invention provides that the pipe on which the tool is seated is double-walled and the coolant supply takes place via its central channel and the coolant discharge via its concentric annular channel.
- Another embodiment of the invention provides that at the end of the tube an approach for fixing the tool is formed, the radial channels having.
- the channels in the lower part of the neck introduce coolant, whereas the upper channels drain.
- the tool has a design to increase its coolable surface.
- the tool is spread from about one third of its diameter from the approach of the rotor.
- the angle between the forming disc parts is between 40 ° and 90 °.
- Each disk part has oppositely directed or flooded channels.
- the preferably central partitions in the outer channels are formed in each case two extending from and to the longitudinal axis of the tube channels.
- the splayed disk parts have at their radially outer ends via ring elements with radially and axially projecting pins. These pins increase the grinding and dispersing performance and the circulation flow of the product within the basket from the near-axis to the peripheral region.
- Another embodiment provides that one or more passages are provided in each splayed disc part. Improve the passages .. or determine the flow of the Mahl stresses- / product flow inside the basket. In addition, the walls of the passages cause an increase in the heat exchange surface and a swirling of the coolant, creating a swirling flow with an improved cooling effect.
- the targeted invention-oriented flow orientation in the basket is improved by the inclination of the passages.
- the inserts forming the passages are inclined towards the outlet or in the opposite direction to the longitudinal axis of the entire wet grinding and dispersing device.
- the walls / sleeves extend at an obtuse angle of 100 ° - 160 °, preferably of 125 °.
- the inlet to the basket, as well as the outlet from the basket, is formed by lateral and upper openings.
- the openings have at least partially screens, whose openings has a smaller cross-section than the diameter of the grinding media. Due to the advantageous inventive design of the device, it would be possible in principle to rotate the basket and / or the tool.
- a tool is designed so that it has both horizontal partitions, as well as vertical partitions.
- the coolant gets each imposed a certain flow direction. Since in the vertical partitions passages are introduced and the annular chambers each have an end wall, takes place at the transition from the inner annular chambers in the outer annular chambers in the lower coolant channel and the passage of the outer annular chambers in the inner Ringkammem in the upper coolant channel in each case a flow reversal by 180 ° of the coolant.
- This targeted direction-reversing flow of coolant increases the heat exchange between the cooled surfaces of the tool and the product.
- FIG. 5 Horizontal section through the tool FIG. 1 shows a grinding and dispersing device 10 which can be lifted along a lifting device 12 and lowered into the container 14.
- the grinding and dispersing device 10 consists of a basket 16 and a tool 18.
- the basket 16 is connected via a hollow shaft 20 with a drive pulley 22, which has a plurality of drive belt 24, with a drive pulley 26 leading to the motor 28 in combination.
- the tool 18 is seated at the end of a tube 30 which receives coolant from a cooling device 32.
- Figure 2 is an enlarged view of the basket 16 again.
- the product 34 flows from the container 14 through the opening 36 covered with a sieve 38 into the basket 16 and is here ground or dispersed by the tool 18 and the grinding bodies 40 activated therefrom.
- the grinding basket 16 which is connected to the drive / motor 28 via a hollow shaft 20, rotates.
- the grinding basket 16 has a kind of double heart shape in cross-section.
- the tool 18 is adapted to this basket shape.
- a tube 30 is inserted centrally into the hollow shaft 20 by means of a bearing 46 and a seal 48.
- this has a reinforced head 50, in which the axial channels 52, 54 pass into radial channels 56, 58.
- the hollow shaft 20 defines a tubular wall 60, the channels 52, 54 from.
- the tool 18 extends radially. In the region near the center around the head 50, the channels 62 and 64 for the supply and removal of the coolant are directly adjacent to each other. With increasing distance of the tool 18 from the head 50, the tool spreads 18.
- the two legs 66, 68 are spread at an angle ⁇ of nearly 60 °.
- passages 70, 72, 74, 76 in the form of sleeves 94, 96, 98, 100 introduced.
- the sleeves 94, 96, 98, 100 are connected to each other on their side inclined to the head 50 at an obtuse angle of about 120 °.
- the deflection of the coolant takes place in the region of the ring elements 78, 80 at the outer end of the pulley parts 66, 68.
- the grinding intensity increase the attached to the pulley parts 66, 68 laterally to the ring elements pins 82 in the axial and radial directions.
- partition walls 84, 86 are inserted into the disc parts 66 ,. Because of this guide, each disk part is flowed through twice, once in the radial direction and once in the direction of the axis of rotation of the agitator.
- the strainer 44 is located below the two annular flanges 88, 90 of the screws 92nd held together.
- the tool 18 is attached to the head 50 of the tube 30, from which also occurs its supply of coolant.
- FIG. 3 shows the number of passages 70 introduced in the lower disk part 66. These 8 passages 70 create a flow around the outer end of the ring member 80. Also visible here are the pins 82 extending both toward the screen 44 and the ring 78.
- the tool 18 is disc-shaped with, in a horizontal plane superimposed coolant channels 102, 104 is provided.
- the coolant passes through the central channel 54 into the coolant channel 104, which has two concentric circular partitions 110, 112.
- the annular chambers 114, 116 formed therefrom communicate with each other via passages 118, 120 in the dividing walls 110, 112.
- the coolant flows into the annular channel 52, which is bounded by the tube 30 and the wall 60.
- the coolant thus flows with multiple changes of direction from a lower coolant channel 104 into an upper coolant channel 102. Again, the coolant completes by crossing into the annular chambers 114, 116, 124 multiple Rieh tion change, before finally flowing into the centrally located outlet channel 126.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/DE2010/000234 WO2011107062A1 (de) | 2010-03-03 | 2010-03-03 | Vorrichtung zum nassmahlen und dispergieren von feststoffen |
DE112010005321T DE112010005321A5 (de) | 2010-03-03 | 2010-03-03 | Vorrichtung zum Nassmahlen und Dispergieren von Feststoffen |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/DE2010/000234 WO2011107062A1 (de) | 2010-03-03 | 2010-03-03 | Vorrichtung zum nassmahlen und dispergieren von feststoffen |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011107062A1 true WO2011107062A1 (de) | 2011-09-09 |
Family
ID=43016520
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2010/000234 WO2011107062A1 (de) | 2010-03-03 | 2010-03-03 | Vorrichtung zum nassmahlen und dispergieren von feststoffen |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE112010005321A5 (de) |
WO (1) | WO2011107062A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101502066B1 (ko) * | 2013-10-18 | 2015-03-12 | 최병석 | 분산력 향상용 바스켓 밀 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5497948A (en) * | 1995-05-16 | 1996-03-12 | Hockmeyer Equipment Corp. | Basket media mill with extended impeller |
EP1238707A2 (de) * | 2001-03-06 | 2002-09-11 | HOSOKAWA ALPINE Aktiengesellschaft & Co. OHG | Rührwerksmühle mit torusförmigem Mahlspalt |
DE10241924B3 (de) * | 2002-09-10 | 2004-05-27 | Netzsch-Feinmahltechnik Gmbh | Rührwerksmühle mit kühlbarer Rührwelle |
-
2010
- 2010-03-03 DE DE112010005321T patent/DE112010005321A5/de active Pending
- 2010-03-03 WO PCT/DE2010/000234 patent/WO2011107062A1/de active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5497948A (en) * | 1995-05-16 | 1996-03-12 | Hockmeyer Equipment Corp. | Basket media mill with extended impeller |
EP1238707A2 (de) * | 2001-03-06 | 2002-09-11 | HOSOKAWA ALPINE Aktiengesellschaft & Co. OHG | Rührwerksmühle mit torusförmigem Mahlspalt |
DE10241924B3 (de) * | 2002-09-10 | 2004-05-27 | Netzsch-Feinmahltechnik Gmbh | Rührwerksmühle mit kühlbarer Rührwelle |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101502066B1 (ko) * | 2013-10-18 | 2015-03-12 | 최병석 | 분산력 향상용 바스켓 밀 |
Also Published As
Publication number | Publication date |
---|---|
DE112010005321A5 (de) | 2012-12-20 |
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