EP3209423A1 - Installation de broyage pour pulvériser une matière à broyer et procédé de pulvérisation de matière à broyer - Google Patents

Installation de broyage pour pulvériser une matière à broyer et procédé de pulvérisation de matière à broyer

Info

Publication number
EP3209423A1
EP3209423A1 EP15750755.9A EP15750755A EP3209423A1 EP 3209423 A1 EP3209423 A1 EP 3209423A1 EP 15750755 A EP15750755 A EP 15750755A EP 3209423 A1 EP3209423 A1 EP 3209423A1
Authority
EP
European Patent Office
Prior art keywords
grinding
grinding device
sifter
ground
outlet
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
EP15750755.9A
Other languages
German (de)
English (en)
Other versions
EP3209423B1 (fr
Inventor
Olaf Hagemeier
Michael Wilczek
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.)
ThyssenKrupp AG
ThyssenKrupp Industrial Solutions AG
Original Assignee
ThyssenKrupp AG
ThyssenKrupp Industrial Solutions 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 ThyssenKrupp AG, ThyssenKrupp Industrial Solutions AG filed Critical ThyssenKrupp AG
Publication of EP3209423A1 publication Critical patent/EP3209423A1/fr
Application granted granted Critical
Publication of EP3209423B1 publication Critical patent/EP3209423B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/02—Feeding devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C25/00—Control arrangements specially adapted for crushing or disintegrating

Definitions

  • the invention relates to a grinding plant for comminuting regrind and a method for comminuting regrind.
  • a grinding plant for comminuting regrind which has a viewing device with a static and a dynamic classifier and at least one grinding device.
  • the millbase is usually in the classifier or the grinding device
  • the regrind becomes fine and coarse
  • the coarse grain fraction of the grinder is fed to crushing.
  • the material to be ground is again sifted in the sifter, with the coarse material being returned to the grinder.
  • irregular process fluctuations which are, for example, natural variations in the nature of the ground material, such as grain size or density. Such process fluctuations lead to a
  • Overloading of the grinding device prevents and allows efficient comminution of the material to be ground.
  • a grinding plant for comminuting ground material comprises at least one grinding device and one with the at least one grinding device
  • the viewing device has at least one
  • the grinding system comprises a control / regulating device for controlling / regulating at least a part of the ground material flow to the at least one grinding device.
  • the control / regulating device for controlling / regulating at least a part of the grinding material flow is an overload of the at least one
  • An overload of the grinding device is present when the Mahlgutstrom in the grinding device exceeds the optimum operating point of the grinding device, for example, 250 - 350 t / h, in particular about 300 t / h.
  • Mahlgutstromwert such as 300 t / h, is determined and at a
  • Controlling the ground material flow is understood to mean the directed influencing of the ground material flow to the at least one grinding device without feedback.
  • the ground material is preferably brittle materials such as limestone, dolomite or ore.
  • the regrind comprises in the
  • the grinding device comprises, for example, a roller press or a
  • the viewing device includes a static sifter and a dynamic sifter.
  • the sighting device preferably comprises a first inlet for introducing a first material flow, for example from a roller mill and / or a fresh material feed, into the viewing device and at least one second inlet for introducing a second material flow, for example from a ball mill, into the viewing device.
  • the sighting device further comprises, for example, a distributor device, which is designed such that it supplies the material flow of the first inlet to the static separator and the
  • Material flow of the second inlet feeds the dynamic classifier, wherein the static classifier and the dynamic classifier are connected such that a Grist flow from the static sifter into the dynamic sifter is made possible.
  • a static sifter comprises a plurality of
  • the static sifter is designed such that it forms a cylindrical annular zone of vision between the flow devices and the dynamic sifter is arranged inside the static sifter.
  • the static sifter is supplied via a classifying air duct, for example by means of a blower, classifying air, which is conducted via the plurality of guide vanes of the flow device against the flow of material flowing through the static classifier.
  • the coarser grain fraction, the coarse material, of the stream of material flowing through the first inlet into the sighting device leaves the static sifter through coarse material outlet, with the finer grain fraction of the material being ground
  • dynamic classifier is supplied pneumatically by the classifying air.
  • a dynamic sifter comprises a moving zone of vision, for example a rotating rod basket into which a stream of material having a small grain size,
  • the dynamic sifter is arranged coaxially with the static sifter and is rotationally symmetrical to the drive axis of the moving viewing zone.
  • the material stream of medium grain size, the gruel, is rejected by the dynamic sifter and leaves the
  • Dynamic classifier happens, has a particle size up to about 300 ⁇ and exits the Fertiggutauslass from the viewing device.
  • the ground material leaving the coarse material outlet and the ground material leaving the meal outlet is fed to at least one grinding device for comminution.
  • a single grinding device such as a roller mill or a ball mill fed.
  • the ground material is fed to the sighting device and enters the second inlet of the sighting device.
  • the material stream entering the sifter through the second inlet is fed to the dynamic sifter via a manifold, the material rejected by the dynamic sifter passing through the sifter
  • the control / regulating device controls the Mahlgutstrom to the at least one grinding device, for example, the Mahlgutstrom between the semen outlet of the viewing device and the inlet of the
  • the semolina outlet and the inlet of the grinding device comprises.
  • Control means arranged between the Gr manegutauslass and the at least one grinding metering device, which is designed such that it at least a portion of the Mahlgutstroms to the at least one
  • a metering device is to be understood as a device which continuously conveys a certain, adjustable amount of ground material.
  • a metering device is, for example, a conveyor belt with a height limiter which pulls off a bunker or a rotary feeder or screw conveyor which is designed in such a way that it can move a constant speed is operable and a maximum Mahlgutstrom of about 300 - 400 t / h, in particular about 300 t / h, promotes.
  • a metering device that limits the grinding material flow reliably prevents a very large
  • Grist flow as occurs in sudden process fluctuations, flows into the grinder and that its maximum capacity is exceeded.
  • the metering device thus enables optimum operation of the
  • Gr maneauslass and the inlet of the at least one grinding device has the advantage that the supply of the grits of average grain size is metered to the at least one grinding device and, for example, does not exceed a certain maximum value. This will result in too much amount of grits in the
  • the grits which has a smaller grain size compared to the coarse material, ensures a troubled run of the grinder. A small amount of gruel allows the
  • the control / regulation device comprises according to another
  • Mahlgutstroms to the at least one grinding device.
  • Measuring device is, for example, an electromagnetic measuring sensor, an inductive flow meter or a mechanical flow meter, such as a baffle plate or a belt scale.
  • the control / regulating device comprises, for example, two measuring devices, wherein a measuring device of the grinding material flow from the coarse material outlet and a further measuring device of the grinding material flow from the semen outlet determined.
  • Grinding device allows control of the grinding material flow as a function of measured Mahlgutstroms. If the grinding material flow exceeds a certain value, which corresponds, for example, to the maximum capacity of the grinding device, for example, the fresh product stream fed into the grinding system is reduced.
  • the measuring device is arranged between the metering device and the at least one grinding device. This arrangement enables a regulation of the grinding material flow before reaching the maximum flow rate of the metering device. If the grinding material flow increases
  • this is registered by the measuring device and, for example, from a certain value, which is below the maximum
  • Flow rate of the metering device is reduced, the task amount of fresh material in the grinding plant.
  • a reduction of the amount of fresh material usually with a time delay, a reduction of the
  • Mahlgutstroms to the grinding device.
  • the metering device prevents, however, an increase in the Mahlgutstroms on the optimal operating point of
  • the grinding plant has according to another embodiment
  • the control / regulating device is in communication with the Frischgutaufgabe and is designed such that it on reaching a threshold value of the determined with the measuring device Mahlgutstroms of the semolina outlet to the at least one grinding device over the Frischgutiergabe reduced entering the grinding plant Frischgutstrom.
  • a buffer store is arranged between the semolina outlet and the at least one grinding device.
  • Buffer memory is preferably arranged upstream of the metering device, so that at a Mahlgutstrom which is greater than the maximum of the metering device conveyable Mahlgutstrom, the millbase is stored in the buffer memory.
  • the buffer memory includes, for example, an outlet cone the sighting device adjoining the semolina outlet of the millbase sown in the static sifter.
  • the arrangement of the buffer storage between the semolina outlet and the at least one grinding device allows a buffering of the greens, which correspond to only a partial flow of the entire Mahlgutstroms. This allows the targeted buffering of a partial flow, wherein the buffer memory, for example, has a small size.
  • the buffer also provides a means of buffering the gruel while, in response to exceeding the maximum grind stream, the fresh stock stream is reduced over the virgin furnish.
  • the grinding plant has a first
  • Such an overflow preferably comprises one
  • Overflow line that conveys regrind out of the buffer tank.
  • the overflow limits an increase of the ground material in the buffer tank. This allows the use of a small buffer storage and prevents the rise of the grist, for example, up to the dynamic classifier.
  • the overflow has a measuring device for measuring the mass flow flowing through the overflow. This allows monitoring of the buffer memory to the first
  • a method for comminuting regrind according to a first aspect has at least the steps:
  • the viewing device being a static sifter and a dynamic sifter wherein the static sifter is arranged such that it at least partially surrounds the dynamic sifter, and wherein the ground material flow to the at least one grinding device by means of a control /
  • Control device is controlled / regulated.
  • Fig. 1 shows a schematic representation of a grinding plant with a
  • Fig. 2 shows a schematic representation of a grinding plant with a
  • Fig. 3 shows a schematic representation of a grinding plant with a
  • FIG. 4 shows a schematic representation of a viewing device according to FIGS. 1 to 3.
  • Fig. 1 shows a grinding plant 10 for crushing brittle material to be ground, such as limestone, clinker, dolomite or ore.
  • the grinding plant 10 has a first grinding device 12, a sighting device 14 and a second grinding device 16.
  • the first grinding device 12 is in the embodiment shown in FIG. 1 a roller press with two counter-rotating grinding rollers 18a, 18b, which are acted upon by a pressing device, not shown in FIG. 1, with grinding pressures of up to 250 MPa, wherein between the grinding rollers 18a, 18b a grinding gap is maintained.
  • the roller press further has a
  • Feed chute 20 which is disposed above the grinding rollers 18a and 18b.
  • the hopper 20 has a tubular upper portion and a funnel-shaped lower portion for conveying ground material into the grinding gap between the grinding rolls 18a and 18b.
  • the roller press 12 has an outlet opening 38 for discharging ground material ground by the grinding rollers 18a, 18b.
  • the sighting device 14 has a static sifter and a dynamic sifter and is arranged below the first grinding device 12. Further, the sighting device 14 includes a first inlet 32 and a second inlet 34 for the admission of a material flow, and three outlets, wherein a
  • the coarse material usually has a particle size of 10-100 mm, the grits a grain size of about 1-10 mm and the fines a particle size of about 30-300 ⁇ on.
  • the detailed structure of the viewing device 14 is explained in more detail with reference to FIG. 4.
  • the first inlet 32 of the sighting device 14 communicates with the outlet 38 of the first grinding device 12 so that the ground material is guided by gravity from the outlet 38 into the sighting device.
  • Grinding device 12 is realized for example via a chute.
  • the second inlet 34 of the viewer is connected to the outlet of the second
  • the sighting device 14 further includes a sighting air inlet 40 for admitting a classifying air stream into the static classifier.
  • the coarse material outlet 24 of the sighting device 14 is followed by a
  • Conveyor 30 which is shown schematically as a pipeline.
  • a conveying device 30 comprises, for example, a conveyor belt or a bucket elevator for conveying ground material from the coarse material outlet 24 of the
  • the semolina outlet 26 of the sighting device 14 is followed by a
  • a metering device 42 is, for example, a variable-speed ballast or rotary valve, the rotating over
  • Gr easilyeauslass 26 of the sighting device 14 to the second grinding device 16 passes.
  • the semolina outlet 26 of the scrubber 14 is connected to the inlet of the second grinder 16.
  • the connection is, for example, a conveying device, not shown in FIG. 1, such as a conveyor belt or a chute.
  • a measuring device for measuring a mass flow of the
  • Viewing device 14 to the second grinding device 16 is arranged.
  • the second grinding device 16 is disposed below the viewing device 14 and in the embodiment shown in FIG. 1, a ball mill having a tubular base body, within which a plurality of
  • Grinding bodies are arranged, for example, by a rotation of the
  • the grinding plant 10 also has a Frischgutiergabe 22, which is shown schematically between the viewing device 14 and the first grinding device 12.
  • the Frischgutiergabe 22 includes, for example, conveyor belts and is arranged such that fresh material is fed to an inlet of the viewing device 14.
  • the grinding plant 10 further comprises two separators 46, 48 for separating the air flow from the ground material.
  • a first separator 46 connects to the Fertiggutauslass 28 of the viewing device.
  • the fine material / air mixture emerging from the finished product outlet 28 is separated at the separator 46 into fine material and air stream 50.
  • a second separator 48 connects to the outlet of the ball mill 16 for separating the millbase emerging from the ball mill from the air stream 52.
  • fresh material is fed via the fresh material feed 22 into the first inlet 32 of the sighting device 14.
  • the fresh product is, for example, coarse-grained meal.
  • the millbase flows through the first inlet 32 into the static sifter, where it is spotted in coarse grain and grits.
  • the coarse material leaves the viewing device through the coarse material outlet 24 and flows via the conveyor 30 to the feed shaft 20 of the roller press 12 and then into the grinding gap between the grinding rolls 18a and 18b, in which it is ground.
  • the millbase ground in the roller press 12 enters the first inlet 32 of the
  • Viewing device 14 where it is spotted in coarse material and grits.
  • the greases leave the sighting device through the Gneßeauslass 26.
  • the subsequent to the semolina outlet 26 metering 42 promotes, for example via a ballast lock, a certain maximum amount of ground material to the inlet of the ball mill 16.
  • the maximum amount of ground material is
  • Milling plant operated such that the amount of ground material is about 250 - 350 t / h, in particular 300 t / h.
  • the metering device 42 reliably prevents the flow of material from the grounds outlet 26 to the inlet of the ball mill 16 exceeding an adjustable maximum value, thereby achieving optimum grinding in the ball mill 16 and overloading the ball mill 16
  • Metering device 42 collects the material to be ground above the metering device 42 in the semen outlet 26 of the viewing device.
  • the grinding plant 10 also has a control / regulating device, not shown, which comprises, for example, the metering device 42 and / or the measuring device 44. The detected with the measuring device 44 mass flow is transmitted, for example, to the control / regulating device, which, if the mass flow a
  • Such a metering device 42 has the advantage that process fluctuations of the grinding plant are compensated for and overload, too large amount of ground material in the ball mill, is prevented. Through the control /
  • Control device the supply of fresh material is controllable / controllable depending on the amount of entering into the ball mill grits.
  • the proportion of grits in the abandoned fresh product is very high, the amount of fresh material on the Frischgutaufgabe 22 can be reduced before reaching the maximum flow of the metering device 42 and thus the operation of the metering device 42 with the maximum flow rate restricted to a short period of time or reaching the maximum
  • Ball mill 16 the material to be ground is fed either via the separator 48 or directly to the conveyor 36, which conveys the material to be ground to the second inlet 34 of the viewing device 14. Via the second inlet 34, the millbase passes into the dynamic classifier and is screened in meal and finished product. The grits leave the viewer 14 through the semolina outlet 26 and the finished product leaves the viewer through the Fertiggutauslass 28. Following the Fertiggutauslass 28, the millbase-air mixture on the separator 46 in finished goods and air stream 50 is separated.
  • Fig. 2 shows a grinding plant 56 with a roller mill 12 and a
  • Sighting device 14 which are arranged substantially in accordance with the grinding plant 10 of FIG. 1.
  • the grinding installation 56 of FIG. 2 does not include a ball mill 16.
  • Gr mandeauslass 26 of the sighting device 14 is a metering device 42 and a measuring device 44 for measuring the mass flow of ground material from the
  • Gr maneauslass 26 arranged.
  • the metering device 42 limits the amount of grain, which is conveyed to the roller mill 12 via the conveyor 30, to a maximum value and thus prevents an overload case in which too large an amount of ground material, especially grits, is conveyed to the roller mill 12.
  • a further measuring device 45 is arranged between the coarse material outlet 24 and the conveyor 30 for determining the coarse material mass flow to the roller mill 12.
  • the measuring devices 44 and 45 determines the amount of grits and gobgut and transmits this value, for example, to a control / regulation device, not shown above a certain maximum value, for example 250-350 th, in particular 300 th, which reduces the amount of fresh material entering the grinding plant 56 via the fresh material feed 22.
  • FIG. 3 shows a grinding plant 58 with a ball mill 16 and a sighting device 14, which is arranged essentially corresponding to the grinding plant 10 of FIG are.
  • the grinding plant 58 of FIG. 3 does not comprise a roll mill 12.
  • the coarse material leaving the sighting device 14 through the coarse material outlet 24 and the granules leaving the sighting device 14 through the pouring outlet 26 are brought together and fed to the ball mill 16.
  • Dosing device 42 and a measuring device 44 for measuring the mass flow of ground material from the semolina outlet 26 are arranged between the semen outlet 26 of the sighting device 14 and the inlet of the ball mill 16.
  • Metering device 42 limits the amount of grain that is conveyed to the ball mill 16 to a maximum value and thus prevents an overload case.
  • a further measuring device 45 is arranged between the coarse material outlet 24 and the inlet of the ball mill 16 for determining the coarse material mass flow to the ball mill 16.
  • the measuring devices 44 and 45 determines the amount of ground material to the ball mill 16 and transmits this value, for example, to a control, not shown. / Control device that reduces above a certain maximum value, the entering into the grinding plant 56 amount of fresh material on the Frischgutholzgabe 22.
  • FIG. 4 shows a viewing device 14 according to FIGS. 1 to 3 with a static sifter 60 and a dynamic sifter 62.
  • the static sifter 60 is arranged around the dynamic sifter 62 and has a cylindrical shape.
  • the static separator comprises an outer cylindrical wall and radially inwardly arranged a first, external static
  • the first and the second flow device 64, 66 each have parallel guide vanes, wherein the guide vanes of the first flow device 64 are employed radially sloping.
  • Flow device 66 are opposite to the vanes of the first
  • Flow device 64 is turned on. Between the first and the second Flow device 64, 66 is a cylindrical static viewing zone 68 is formed.
  • the dynamic sifter 62 comprises a rod cage 70 with rods extending in the axial direction.
  • the rod basket 70 is driven in rotation via a drive shaft 72 attached to the upper end of the rod basket.
  • the dynamic sifter 62 is arranged coaxially with the static sifter 60 and rotationally symmetrical to the drive axle 72.
  • the dynamic viewing zone 74 is formed between the view basket and the second flow device 66. Further, not shown vertical, rod-shaped guide elements may be arranged in the dynamic viewing zone 74, which connect to the flow device 64.
  • a distributor device 76 is arranged, which has a first disc 78 and a parallel second disc 80.
  • the second disc 80 has the same diameter as the rod basket 70 is fixedly connected thereto and forms a lid of the cylindrical rod basket 70.
  • the first disc 78 is disposed parallel to the second disc 80 above this and is annular, with a recess in formed the middle.
  • first disc 78 and the second disc 80 Between the first disc 78 and the second disc 80, a passage is formed.
  • the first disc 78 and the second disc 80 are interconnected in a manner not shown, such that rotation of the second disc 80 fixedly connected to the rod basket 70 causes rotation of the first disc 78.
  • a first inlet 32 and a second inlet 34 for introducing a flow of material are arranged in the viewing device.
  • the inlets 32, 34 have concentric, arranged around the drive shaft 72 openings comprising the tubular inlets, wherein the
  • Inlet opening of the first inlet 32 above the inlet opening of the second Inlet 34 is arranged.
  • the drive shaft 72 of the dynamic classifier 62 extends centrally, in the axial direction through the second inlet 32.
  • a classifying air channel 82 is arranged around the static classifier 60.
  • Classical air channel 82 is schematically laterally, on the left side of the static
  • the sift channel 82 is in fluid communication with the static sifter so that sifting air may flow from the outer wall of the static sifter 60 through the outer static flow device 64 into the sifting zone 68 of the static classifier 60.
  • the direction of flow of the classifying air is represented by the direction of the arrow in the classifying air channel 82.
  • Fig. 4 also shows three outlets 24, 26, 28 for discharging the sighted
  • the coarse material outlet 24 includes a channel which is arranged below the static viewing zone 68 such that the rejected in the static zone of vision material falls into the channel and through
  • the semolina outlet 26 includes a channel disposed below the dynamic viewing zone 74 such that the material rejected by the dynamic sifter falls into the channel and out through the semen outlet 26 from the viewer 14.
  • the Fertiggutauslass 28 has a channel which is disposed below the rod basket 70 and through which the static and the dynamic reformch 68, 74 material passing out together with the prepare for the rod basket 70 exits the sighting device 14.
  • Disk 78 the material is moved radially outwardly on disk 78 and passes from above into the static viewing zone 68 of the static classifier 60.
  • the impact of the material flow on the disk 78 and the rotation of the disk 78 additionally provide deagglomeration of the material.
  • classifying air enters the static sifter 60 and flows through the outer flow device 64 against the stream of material flowing through the static sifting zone 68.
  • the flow of material is deflected radially inwardly toward the internal flow 66 by the incoming classifying air.
  • the coarse material flows through the static vision stage following gravity and falls down to the coarse material outlet 24.
  • the finer material is pneumatically conveyed by the classifying air through the internal flow 66 into the dynamic classifying zone 74 where it is again coarse and fine Material is separated.
  • the coarse material is rejected by the rods of the basket basket 70 and falls down to the semen outlet 26.
  • the fine material passes through the rods of the rod basket 70 into the interior of the rod basket and is combined with the classifying air in
  • the sighting device 14 has three outlets 24, 26, 28 for three different grain fractions of the material flow.
  • the stream of material flowing into the sifter 14 through the first inlet 32 becomes three different ones
  • the coarser material falls through the dynamic viewing zone down to the semolina outlet 26th
  • the finer material enters the rod basket 70 and is discharged downwardly together with the classifying air towards the finished product outlet 28.
  • the material entering the viewing device through the second inlet 34 is viewed in two grain sizes, with the finer millbase, in particular finished product, being discharged from the sifting outlet 26 out of the sighting device 14 through the finished product outlet 28 and the coarser millbase, in particular gruel.
  • the sighting device 14 allows a task of two material streams of different grain size in the viewing device, wherein the first material flow is both the static classifier 60 and the dynamic classifier 62 is supplied and the second material flow is supplied exclusively to the dynamic classifier 62. This allows for a coarse inlet
  • the grinding device described with reference to FIGS. 1 to 3, in which the sighting device 14 described with reference to FIG. 4 is arranged, makes it possible to save a considerable amount of space since one viewing device is used for two streams of material and an additional sifter can be dispensed with. Furthermore, the grinding system described allows a waiver of additional line elements between a static and a dynamic
  • the grinding plant further ensures operation of the grinding devices at their optimum operating point and thus an efficient operation

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Combined Means For Separation Of Solids (AREA)

Abstract

L'invention concerne une installation de broyage (10), destinée à pulvériser une matière à broyer, qui comprend au moins un dispositif de broyage (12, 16) et un dispositif de tamisage (14) relié à au moins un dispositif de broyage (12, 16) et destiné à tamiser la matière broyée avec un tamiseur statique et un tamiseur dynamique ; le tamiseur statique est disposé de façon à entourer au moins partiellement le tamiseur dynamique ; le dispositif de tamisage (14) comporte au moins une sortie de matière grossière (24) destinée à laisser passer une matière grossière ayant une granulométrie grossière, au moins une sortie de matière menue (26) destinée à laisser passer une matière menue de granulométrie moyenne et au moins une sortie de matière finie (28) destinée à laisser passer une matière finie de granulométrie fine ; l'installation de broyage comporte un dispositif de commande/ régulation destiné à commander/réguler au moins une partie de l'écoulement matière broyée vers l'au moins un dispositif de broyage (12, 16). L'invention concerne en outre un procédé de pulvérisation de matière à broyer qui comprend au moins les étapes de: broyage de la matière à broyer dans au moins un dispositif de broyage (12, 16), et tamisage de la matière broyée dans un dispositif de tamisage (14) pour obtenir une matière grossière, une matière menue et une matière fine, le dispositif de tamisage (14) comportant un tamiseur statique et un tamiseur dynamique, le tamiseur statique étant disposé de façon à entourer au moins partiellement le tamiseur dynamique, et l'écoulement de matière broyée vers l'au moins dispositif de broyage (12, 16) étant commandé/régulé au moyen d'un dispositif de commande/régulation.
EP15750755.9A 2014-10-22 2015-08-18 Installation de broyage de matière et procédé de broyage de matière Active EP3209423B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014015549.8A DE102014015549A1 (de) 2014-10-22 2014-10-22 Mahlanlage zum Zerkleinern von Mahlgut sowie Verfahren zum Zerkleinern von Mahlgut
PCT/EP2015/068886 WO2016062428A1 (fr) 2014-10-22 2015-08-18 Installation de broyage pour pulvériser une matière à broyer et procédé de pulvérisation de matière à broyer

Publications (2)

Publication Number Publication Date
EP3209423A1 true EP3209423A1 (fr) 2017-08-30
EP3209423B1 EP3209423B1 (fr) 2020-11-25

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Application Number Title Priority Date Filing Date
EP15750755.9A Active EP3209423B1 (fr) 2014-10-22 2015-08-18 Installation de broyage de matière et procédé de broyage de matière

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US (1) US20170304843A1 (fr)
EP (1) EP3209423B1 (fr)
CN (1) CN107107069A (fr)
DE (1) DE102014015549A1 (fr)
WO (1) WO2016062428A1 (fr)

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DE102013101517A1 (de) * 2013-02-15 2014-08-21 Thyssenkrupp Resource Technologies Gmbh Sichter und Verfahren zum Betreiben eines Sichters
DE102017115994A1 (de) * 2017-07-17 2019-01-17 Thyssenkrupp Ag Zweistufiger Mahlkreislauf und Verfahren zur Herstellung eines gemahlenen Produkts mittels einer zweistufigen Mahlung
CN108080127A (zh) * 2017-12-20 2018-05-29 重庆齿轮箱有限责任公司 一种砂粒加工系统
RU192497U1 (ru) * 2019-05-31 2019-09-18 Федеральное государственное бюджетное образовательное учреждение высшего образования "Волгоградский государственный технический университет" (ВолгГТУ) Устройство для измельчения материалов
WO2022028925A1 (fr) 2020-08-07 2022-02-10 Thyssenkrupp Industrial Solutions Ag Dispositif et procédé de déversement pour déverser un matériau depuis une chambre de traitement
DE102020210018A1 (de) 2020-08-07 2022-02-10 Thyssenkrupp Ag Austragseinrichtung und Verfahren zum Austragen von Material aus einem Prozessraum
BE1028536B1 (de) 2020-08-07 2022-03-07 Thyssenkrupp Ind Solutions Ag Austragseinrichtung und Verfahren zum Austragen von Material aus einem Prozessraum

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CH435940A (de) * 1964-02-27 1967-05-15 Georg Claes Fa Anlage zum Mahlen eines Rohstoffes für die Zementindustrie
US3351293A (en) * 1965-08-23 1967-11-07 Kaiser Ind Corp Grinding mill and method of operation
US3379421A (en) * 1966-12-14 1968-04-23 Westinghouse Electric Corp Control of material processing device
DE8916267U1 (de) * 1989-02-20 1996-08-08 Klöckner-Humboldt-Deutz AG, 51063 Köln Sichter zum Sichten von körnigem Gut und Mahlanlage mit Einschaltung eines solchen Sichters
DE3920005A1 (de) * 1989-06-20 1991-01-03 Kloeckner Humboldt Deutz Ag Anlage zur zerkleinerung bzw. mahlung von sproedem gut und verfahren zum betrieb einer solchen anlage
AT403443B (de) * 1995-07-11 1998-02-25 Enco En Componenten Ges M B H Einrichtung zum zerkleinern harter materialien, vorzugsweise biogener abfälle
DE102004027128A1 (de) * 2004-06-03 2005-12-22 Polysius Ag Vorrichtung zum Sichten von körnigem Gut in wenigstens drei Kornfraktionen
DE102005007254A1 (de) * 2005-02-16 2006-08-17 Polysius Ag Mahlanlage und Vefahren zum Mahlen von Mahlgut
PE20100693A1 (es) * 2009-02-05 2010-10-17 Heineken Supply Chain Bv Metodo y sistema para preparar un extracto liquido de granos de cereal
FR2959679B1 (fr) * 2010-05-05 2015-02-20 Fives Fcb Procede de broyage d'une matiere minerale contenant au moins du calcium et des impuretes metalliques, et installation convenant pour le broyage d'une matiere minerale contenant du calcium et des impuretes metalliques en tant que tels.
DE102011055762B4 (de) * 2011-11-28 2014-08-28 Maschinenfabrik Köppern GmbH & Co KG Vorrichtung zum Sichten von körnigem Gut und Mahlanlage
WO2013094399A1 (fr) * 2011-12-22 2013-06-27 コニカミノルタ株式会社 Procédé de régénération d'abrasif et abrasif régénéré
US10017675B2 (en) * 2011-12-27 2018-07-10 Konica Minolta, Inc. Method for separating polishing material and regenerated polishing material

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Publication number Publication date
CN107107069A (zh) 2017-08-29
EP3209423B1 (fr) 2020-11-25
US20170304843A1 (en) 2017-10-26
WO2016062428A1 (fr) 2016-04-28
DE102014015549A1 (de) 2016-04-28

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