JPS58128159A - Stirring ballmill - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The invention relates to an agitated ball mill according to the preamble of claim 1).

The known agitator mill (German Published Application No. 2629) with rotating backing and separation means for ball filling
251, Publication No. 2908154), significant installation and disassembly costs are incurred in order to clean and/or replace various mechanical parts. Even in the case of structures which are particularly designed to be easily dismantled (FR 1 472 184 1, DE 28 13 781), it is also necessary to remove the backing together with the disassembly. In addition, known structures with a separation gap and a groove-ring backing structure often have the groove-ring backing structure and separation gap too far away from the radial bearing, resulting in various difficulties in the accurate fitting of these components. There is a drawback that it comes with

Mill with lower drive rotor (US Pat. No. 3,352,501)
In this case, a ring screen is provided in the upper region between the grinding chamber and the product discharge chamber.

By removing the upper cover, the interior of the grinding chamber becomes accessible for inspection and repair. Removal of the stator is only possible after complete dismantling of the mill.

The purpose of the present invention is as follows. This means that even when the rotor is driven, the product removal chamber and the parts bordering it can be accessed in a simple manner from above, thereby making it possible to easily clean and replace contaminated or worn out parts. The object of the present invention is to provide an agitated ball mill of the type described in .

To achieve this objective, the features of claim 1) are proposed. This construction makes it possible to inspect the product discharge chamber and the parts that define it using a very simple measure, namely by removing the stator, which is fixed in particular by screws, of the casing and pulling it apart in the axial direction.

With the features described in claim 2), the stator separation ring as well as the stator can be easily removed in the axial direction.

The features recited in claims 3) to 5) serve for a precise insertion of the stator separation ring and for the creation of an orderly flow in the product discharge chamber.

The features according to claim 8) ensure a simple installation and fastening of the backing receiving element.

The guide/gu described in claims 10) to 13) does not create a gap in the product discharge space, and the product flows uniformly in the product discharge chamber. The guide ring can be easily removed for cleaning the mill and reinserted.

The features of claims 13) to 15) also serve for easy installation and removal of structural parts that are subject to wear and may require cleaning.

In principle, the stator and rotor separation rings can be arranged with a slight axial overlap, but it is possible, however, to shift the stator separation ring axially away from the rotor separation ring in the direction of the rotor. , it is advantageous if they do not overlap each other in the axial direction, resulting in an axial separation edge spacing of less than half the smallest diameter of the ball. Especially claim 15)
According to the invention, there is also no radial overlap, which facilitates the removal of the stator and rotor separating rings.

In a neutral case, the invention has neither axial overlap nor axial spacing of the separating edges, but it is possible to have a slight radial spacing. The advantage of such a force configuration is that the flow resistance imposed by the separation gap is reduced.

The embodiment described in claim 17) enables the following points. That is, the separation ring is placed 180 degrees around the horizontal axis.
By rotating, a fresh and unworn separating edge is provided, which means that final replacement of the separating ring is necessary only at longer time intervals.

A simple exchange of the spindle is ensured by the features of patent claim 19).

The features of claims 18), 20) and 21) ensure favorable flow in the product discharge chamber.

The features of patent claim 22) enable the rotor to be mounted in a floating manner in a reliable manner.

According to the feature of claim 23), although the stator can be removed in the axial direction, the rotor can also be rotatably supported at the end opposite to the casing.

The figures showing examples will be explained in detail.

As shown, the spindle 14 through which the coolant line 38 passes vertically in this embodiment passes through the housing 13, which in the upper region is in the form of a hollow cylinder.

At the upper end of the spindle 14 there is a rotary inlet 39 which rotates together with the spindle and has a siphon tube 40 which serves for the connection of the supply and discharge of the coolant.

A belt pulley 41 is fixed to the upper end of the spindle 14 protruding from the casing 13 at a distance and downward. has been done.

A cylindrical casing 13 begins slightly below. As shown in FIGS. 1 and 3, the upper end of this casing is closed by a sliding ring backing 31, and the sliding ring backing 31 is fixed to the spindle 14 so as not to rotate. On the other hand, the axially facing slides 931t are connected to the inner wall of the casing 13 when fixed. Sliding ring! The axially sealed end faces 42 of i1a, 31b are lapped to ensure complete sealing.

In the area of the sliding ring backing 31 there is a connection 33 laterally in the housing 13 through which a sealing medium, in particular liquid, is fed into a sealing medium line 32 between the spindle 14 and the housing 13.・It is discharged.

The spindle 14 and the casing 13 are located below the connection part 33.
There is a thrust bearing 26 between them, and a radial bearing 25 made up of cylindrical rollers is located immediately below it. Bearing 25
, 26 are inside the sealing medium line 32.

A radial bearing 19, also formed by cylindrical rollers, is fixed at a distance below the bearings 25, 26 between the casing 13 and the spindle 14, and the bearing is also connected to the sealing medium line. It is inside 32.

As shown in FIGS. 1 and 4, just below the height of the radial bearing 19 there is another sliding ring backing 20 between the casing 13 and the spindle 14. This backing is a sliding ring 20a.

20t). These sliding rings are also in contact with each other along the lapped axial end faces 42.

The co-rotating slides 1j20a are located inside an annular step 21 formed by the outward extension of the spindle flange 14' in the downward radial direction from the relatively short diameter spindle section 14'. As a result, the sliding ring 20a is well and tb, and this stop is the 0 ring 43.
further aided by

An axial pin 44 provided on the periphery extends between the spindle flange 14' and the sliding ring 20a and serves to ensure that the sliding ring rotates completely during rotation of the spindle.

Axially facing the slide ring 20a in the direction of the radial bearing 19, a further slide ring 20tl is provided inside the backing receiving member 22, which like all other ring-shaped components It is installed coaxially with the spindle axis. In the upper part,
2 borders the radial bearing 19. ) (The packing receiving member 22 includes 12 compression springs 45 uniformly distributed around its periphery, which are connected via an annular spring 46 to the sliding ring opposite the sealing surface 42. 20
Acts on the end face of b.

The backing housing member 22 shown in FIGS. 1 and 4,
The shaping according to the invention allows the sealing medium in the conduit 32 to pass through the lower gap 47 and into the interior of the backing receiving member 22, resulting in a connection 34 provided inside the casing 13. flows out from. The circulation path for the sealing medium can also be reversed. That is, the entrance is 3
4 and the exit is 33.

The sealing medium has particularly lubricating properties, so that at the same time the bearing 19
, 25, 26 and the sealing surfaces 42 are also provided with lubricating oil. Connections 34,33 are connected to a circulation system, not shown.

The circulation system has a heat exchanger for cooling the sealing medium.

The bearings 19, 25, 26 are fixed to the spindle in such a way that the spindle can be pulled out downwards from the bearings. For this reason, it is important that the backing receiving member 22 has a diameter greater than the diameter d of the spindle portion 14' above it.

If the sealing medium is supplied from 34, the flow state of the sealing medium is implied by the arrow.

Around the perforated backing receiving member 220 there is a fixing ring 23, which contacts the slide ring 201) from the outside. The O-backing 4a inserted into the inner wall of the fixing ring 23 connects the fixing ring 23 and the slide ring 20.
Achieve complete sealing between b.

The ring flange 23' of the fixing ring 23 is further radially outwardly directed toward the casing 1 to compensate for this.
3 and can therefore be axially fixed there by screws 48.

A sliding ring 20 is provided on the lower side of the fixing ring 23.
In the region of the sealed gap 42 there is a product removal chamber 18, in which a flat guide ring 24 is fixed, which is divided into two parts (not shown) and is radially It can be attached and removed. Guidance/
The shoe 4 has a flat top and is in close contact with the casing 13 and thus with the fastening ring 25 which is in close contact with it.

Thus, the upper end surface 14'' of the spindle 7 flange 14'
The sliding ring (the sliding ring 20 and the guide ring 2)
A limited flow conduit for the fluid product is created during 4. This is indicated by an arrow.

Also between the backing accommodation member 22 and the sliding D IJ tongue 0b, two knob ports 49 are provided uniformly distributed around the periphery, and these knob bolts are connected to the sliding ring 201).
This prevents rotation relative to the mounting housing member 22.

Radially outside the guide ring 24, as shown in FIGS. 1 and 2, is a stator isolation ring 28. This ring is axially fixed to the radial flange 13' of the casing 13 by screws 50. The fixed separating ring 28 is connected directly from the outside in the radial direction to the guide ring 24 and is radially separated from the spindle flange 14', but overlaps in the axial direction and is located in this position in the product discharge chamber. A cylindrical ring-shaped space 18' is created.

A hard metal ring 28 is located below inside the stator separation ring.
' has been inserted, and the ring is in the product delivery gap 18'.
A first separating edge 30 is formed in the crushing chambers 16...Q. This separating edge is concentric with the axis of the spindle 14.

The lower ring-shaped step 52 of the spindle flange 14' has a rotor separation ring 29 as shown in FIGS.
It is arranged. This ring slightly overlaps the stator separation ring 28 in the axial direction. But they are far apart in the radial direction. A hard metal ring 29' is attached to the ring 29 on the outside of the lower part. This metal ring is rectangular in cross-section and is approximately 2/2/2 from the separating edge 30 of the hard metal ring 28'.
A separating edge 30 is formed at a distance of 10 mm. Between these two separating edges 30 extends a separating gap 15 which prevents the filling of the grinding chamber 16 with a pole.

The stator separation ring 28 also has an inner hard metal ring 281 on the end face opposite to the grinding chamber 16 . This ring 28' is completely symmetrical to the ring 28'.

The stator separation ring thus constructed is assembled by loosening the screw 50 and rotating it around the horizontal shaft 53 so that the separation edge 30 of the hard metal ring 28' faces the separation edge 30 of the hard separation ring 29'. You can also do that.

That way, even if one separation edge wears out, the other one remains active.

Similarly, the stator separation ring 29 also has 18
It can be rotated by 0° and placed. The separating edge 30 of the hard metal ring 29 ′, which is directed towards the grinding chamber 16 , is thus also brought into the area of the separating gap 15 .

These interposed rings allow the degree of overlap between the stator separation ring 28 and the rotor separation ring 29 to be predetermined. In this way, the width of the separation gap 15 can be set accurately.

The rotor's hard metal ring 29' can also be shrink fit and/or glued directly onto the spindle 7 flange 14. That is, the rotor separation ring 29 can be omitted. This also results in a lower structure and increased accuracy. This is because the hard metal ring 29' can then be placed closer to the bearing. In that case, the hard metal ring 28' of the stator must also be correspondingly displaced in the axial direction.

Stator separation/stator 1 by means of screws 55 axially into flange 16' radially outwardly of gear 3
1 is fixed. This stator carries a cooling pipe 56 and a fixed stirring device 57.

The rotor 12 is fixed to the underside of the rotor separation ring 29 by means of screws 27 as well as the spindle 14 . The groove joints 58, 59 ensure a perfectly coaxial alignment of the floatingly mounted rotor 12 and a perfect entrainment of the rotor.

The rotor 12 has a cooling conduit 60 and, outwardly, a grinding chamber 16 .
It has a stirring tool 61 extending between the fixed stirring tools therein.

The rotor 12 has its upper portion 12' resting on a narrow portion of a ring flange 14' below the ring-shaped step 52. A rotor separation ring 29 is inserted between the end face of the bead 12' and the enlarged portion of the ring 7 flange 14'.

The sealing medium in the sealing medium line 32 is under pressure as follows. i.e. the sliding sealing backing 2 on the side of the sealing medium.
The pressure at the zero backing end face 42 is greater than the pressure within the product discharge chamber 18 .

In this way, the fluid product can enter the reservoir at any time. On the other hand, leakage into the product discharge chamber 1B to the extent that the sealing medium is present is not a disadvantage if a suitable sealing medium is used, such as synthetic mineral oil, for example.

In other words, when selecting a sealing medium, care must be taken that, while it is acceptable for the product to have leakage loss to a certain degree, it is necessary to have sufficient sealing layer characteristics for other methods.

The operation mode of the stirring ball mill of this invention, and the installation and removal proceed as follows.

The drive through the belt pulley 41 causes the rotor 12 to rotate in the usual manner. On the other hand, the material to be crushed is fed from below into the crushing chamber 16, where it is crushed in a desired manner by a crusher filling and stirring tools 57, 61 (not shown). Next, the product passes through the separation gap 15 to the upper product delivery chamber 1B.
be moved inside. At that time, the pole will be left behind.

The separating edges 30 of the hard metal rings 28', 29', which are themselves extremely sensitive, are therefore subjected to comparatively little stress. This is because the poles are not supported on the edges, but on the outer cylindrical long surface of the rotor separation ring 28 and on the lower ring-shaped end surface of the stator separation ring 28.

To clean the agitator ball mill according to the invention, first the screws 55 axially fixing the stator are loosened, and then the stator 11 can be pulled axially downwards.

The release of the second circle of screw 50 moves stator separation ring 28 axially away from drive casing 13 .

Said ring then rests on the upper ring of the stirrer of the rotor 12.

Subsequently, the two semicircular bodies of the guide ring 24 separate from each other. Since the stator 11 and the stator separation ring 28 have already separated before this, the guide ring halves 24 are pulled out in the radial direction.

Now, the products are pushed together: rotor 12, spindle flange 14', ring backing 20. All surfaces of the casing 13 can be cleaned even after removing the bearing and sliding link hacking 20.31.

It is furthermore pointed out that the radial threaded bolts 62 provided on the fixed stator separation ring 28 hold the guide ring 24 captured from below with these bolts at the correct height. The upper side of the guide ring near the product unloading area is cut accordingly.

More importantly, after removing the half of the guide ring 24, the screw 2
7 radially from the outside with an angle tool to the product chamber 1
It comes within reach from 8 onwards.

The screw 27 is thus loosened and the rotor 12 and possibly also the rotor separating ring 29 are then pulled axially downwards.

After the rotor 12 and the rotor separation ring 29 are pulled downward and the four-point pole bearing 26 provided at the top is fixed in the axial direction, the spindle 14 is also attached to the flange 14'.
At the same time, it can be pulled out downward from the bearing 19°25.26.

Assembly of the stirring tool ball mill is carried out in the reverse direction.

Although the floating bearing of rotor 12 shown in the figures is preferred, the invention is not so limited.

Backing 20.31 is 4 bar, sometimes 6 bar
It shall be constructed to withstand pressure differentials of up to 1,000 bar. The latter is especially necessary if several stirred ball mills according to the invention are connected in parallel.

Pressure differences can also become large during continuous milling movements.

While the lower backing 20 is always configured as a rowing ring backing, the upper rotating backing 31 can also be configured as a normal standard backing, such as a lip-type backing, a packing box or the like. can.

More importantly, the bearing 19, 25.26 is provided between the rotating backing 20.31 in the sealing medium line 32.

The sliding ring of the lower sliding ring backing is composed of a hard metal ring. This is because these backings come into contact with aggressive media in any case.

The upper rotating backing 31 must only match the properties of the sealing medium 32. In that limit, rotating backing 31
is cheap and economical in terms of quality.

An important purpose of the guide ring 24 is also that the volume of the product discharge chamber 18 is reduced. This is important, for example, when changing from one dye to another in the production of dyes.

That is, the volume to be purified is reduced, and furthermore, dye residues are prevented from adhering to the corners where the dye did not flow.

Most importantly, the entire removal process can be carried out without removing one of the slide packings, with the exception of spindle removal. This eliminates the refinishing of the sliding backing after removal, which is necessary in the case of known stirred ball mills.

Various parts of the machine, e.g. separating rings 28.29
After disassembly for cleaning or removal and replacement, the casing already contains the spindle 14 and bearings 19, 25, 2.
6. Only the rotating backing 20.31 remains. It is then important that the sealing medium line 32 is not touched during disassembly, so that the pressure in said line 32 can even be maintained during disassembly.

A gear pump (not shown) for circulating the sealing medium is driven directly by the stirring drive.

Finally, it should be pointed out that the backing 20.31 can be easily replaced if the spindle 14 is also pulled out downwards.

The advantages of the stirred ball mill according to the invention can be summarized as follows.

That is, the gap between the separation gap 15 and the radial bearing 19 can be made significantly narrower. This increases the rigidity of the separation gap, increases precision, reduces bearing stress, and reduces the length of the mill.

The manufacturing cost of the sliding backing is lower.

After all, the rotary backing 31 on the opposite side of the rotor may be a standard backing and has a smaller diameter than the sliding backing 20 facing the rotor.

All parts can be thoroughly cleaned without removing the bearing and backing.

Consumable parts (stator 11, rotor 12, separation ring 28
．． 29) Complete replacement can be done without removing bearing 19°25.26 and backing 20.21.

By providing the bearings 19, 25, 26 between both parts of the dual-acting sliding sealing backing 20.31, bearing lubrication takes place simultaneously through the sealing medium.

It is further important that the fixed stator separation ring 28, after its removal, can be slid axially in the direction of the rotor to such an extent that the three-part guide ring 24 can be removed.

The entire part of the mill that comes into contact with the product can be easily cleaned if the removable parts are removed without dismantling the bearings and seals.

The rotor 12 must be of integral construction.

It is screwed onto the spindle 7 flange 14'.

Furthermore, it is important that a rotor separation ring 29 is sandwiched between the rotor 12 and the spindle flange 14'. Rotor 12 can also be assembled from individual rings.

The ring containing the rotor separation bushing must be axially tightened with the spindle 7 flange 14' by means of a tension rod so that the friction of the rotary torque transmission reservoir is sufficient (DE-A-2813781).

Due to the hollow structure of the spindle 14,
A coolant for cooling the rotor 12 can flow through the spindle from both directions.

In the case of a one-piece rotor 12, the cylindrical body is provided with spiral channels on its surface for guiding the coolant.

The rotor 12 is composed of a single tube. This tube has a blind hole for inserting a stirring rod, and the stirring rod is glued into the blind hole. The rotor 12 rotates between the stirring bar planes. The stirring rod is press-fitted into a hole passed through the rotor 12.

The rolling bearing consists of two cylindrical rolling bearings 19, 25 for absorbing radial forces and a four-point bearing 26 on the drive side for absorbing axial forces.

The four-point bearing 26 is tensioned only axially along the inner and outer rings, and radially on the two rings for ease of removal. Has a glare.

The cylindrical roller bearing 25 on the drive side has a diameter shorter than the cylindrical roller bearing 19 on the rotor side. In this way, the spindle 14
can be removed without removing the inner ring of the cylindrical roller bearing.

The inner diameter of the rotor-side sliding ring to be transferred is longer than the outer diameter of the cylindrical roller bearing inner ring, so that the sliding ring can be removed without dismantling this inner ring.

[Brief explanation of the drawing]

FIG. 1 shows a partial, axial section of a stirred ball mill according to the invention in the bearing area and in the stator and rotor fastening area of the casing, showing two different embodiments on the left and right of the vertical central axis; Fig. 2 is a partially enlarged dimensional view of each separation ring of the stator and rotor shown in Fig. 1 to show the overlapping parts, and Fig. 3 is an enlarged partial view of the sliding ring packing of Fig. 1. , FIG. 4 is an enlarged dimensional view of the portion of FIG. 1 in the area of the sliding ring backing and backing receiving member. Reference numeral 11 in the figure...Stator 13...Casing 18...Engraving of the opening of the product unloading chamber (no change in content) Procedural amendment □-1 (method) March 2, 1930 Patent Office Director Kazuo Wakasugi 1, Indication of the case Showa R7 Patent Application No. 210'? Oq No. 2 Incorporation of the title of the invention - Lumi IL/3, Relationship with the case of the person making the amendment Applicant 4, Agent 5, Date of amendment order

Claims (1)

[Claims] 1) having an essentially cylindrical stator fixed to the casing by an end face and a rotor disposed therein, the rotor being fixed to the casing by an end face, the rotor being non-rotatable to the rotor; between the spindle and the stator, which is connected to the stator and driven by a motor, and is rotatably supported via a bearing structure of the casing, and between the spindle and the stator there is a separating device, in particular a single ring type In an agitated ball mill, there is a separation gap concentric with the rotor axis and surrounded by the stator, and a backing device between the spindle and the casing that is the same as the rotor axis and limits the product discharge chamber.
A stirring ball mill characterized in that a stator (11) surrounds most of a product discharge chamber (18) and is configured to be able to be pulled out from a casing (13) in the axial direction. 2) A radial flange (15') is connected outwardly to the casing (13) surrounding the spindle (14) and spaced coaxially to the end face of the flange facing the grinding chamber (16). Mill according to claim 1, characterized in that a stator separation ring (28) is removably fixed in the axial direction on the outside and inside of the stator (11) and forms the stator-side limit of the separation gap (15). . 3) The stator separation ring (28) has a radial flange (
Mill according to claim 2), having a surface adapted to the end face of the stator (13') and to the inner surface of the stator (11) and abutting the end face and the inner surface of the stator (11). 4) Claim 5) The cross-section of the stator separation ring (28) is perpendicular to the periphery and essentially rectangular.
Mil listed. 5) A ring-shaped step in which the end face of the radial flange (1:5') and the face of the stator separation ring (28) in contact therewith protrude in the axial direction when viewed radially outward from these faces. The mill (first mega) according to claim 4), having: 6) a radially outwardly extending spindle flange (14') of which the spindle (14) is integrally formed at its rotor end from a shorter diameter spindle section (14');
The radial flange (13') is spaced apart in the axial direction, the radial bearing (19) is placed on the spindle part (14), and the sliding ring backing (20) is placed on the spindle part (14). 14') in the area of transition from the spindle flange (14') to the spindle part (14'), wherein the separation gap (15) is in the spindle flange (14'). 7) The sliding ring (20a) of the sliding ring backing (20) attached to the spindle (14) is transferred from the spindle portion (14') to the spindle 7 lunge (14'). Mill according to claim 6, wherein the mill is inserted into a ring-shaped step (21) where the mill is inserted. 8) The backing housing member (22) can be inserted into the casing [13] from the rotor side, and can be directly inserted into the sliding ring (20b) provided in the casing (13) in the radial direction.
) is a fixing ring concentric with the rotor axis (
23) is fixed to the casing (13) by
A mill according to any one of claims 1) to 7). 9) The product unloading chamber (18) is connected to the spindle 7 lunge (14')
) on the opposite side of the rotor (12) from its peripheral edge (1
4, where it borders the sliding sealing backing (20) from the outside in the radial direction, and the product discharge chamber (18) is axially connected to the end surface (1C) at least in one place on the periphery.
), wherein a product outlet (17) is provided in a component (13, 25, 24) limited to the component (13, 25, 24).
8) The mill according to any one of -. 0) A flat guide ring (24) widely surrounded by the stator (11) is provided in the product unloading chamber (18) at a distance from the end face (14") opposite the rotor. This ring reduces the product discharge chamber (18) and directs the product flow coming from the periphery of the spindle flange (14') first along the end face (14'') opposite the rotor (12). Inward towards the sliding ring backing (20) and thence along the sliding ring backing (20) to the rotor (
12) and finally lead outwards to the product outlet (17).
) to 9). 11) the guide ring (24) is divided in two essentially diametrically opposed positions, i.e. both halves of the ring can be radially tightened outwards; 11. The mill according to claim 10, wherein the mill is configured to be able to be removed radially outwards. 12) Guide ring (2) with essentially rectangular cross section
Claim 10) or 11), wherein the stator ring (28) has its circumferential surface protrudingly in contact with the inner circumferential surface of the stator ring (28).
Mill described in. 13) The rotor (12) is fixed by a screw (27) in one place of the spindle flange (14') essentially axially aligned with the guide ring (24). The mill according to any one of 12). 14) At the periphery of the spindle flange (14) a rotor separation ring (29) is axially and removably fixed, which ring forms the other boundary of the separation gap (15). The mill according to any one of ranges 6) to 13). 15) Rotor separation ring (29) in the direction of the rotor (12)
) axially offset stator isolation ring (
Mill according to claim 14), wherein the rotor separation ring (29) does not overlap in the radial direction. 16) Hard metal ring (28) in the area of the separation gap (15)
, 2B-29) is inserted into the separating ring (28, 29). 17) It is possible to assemble the separation ring (28, 29) even with the replaced axial end face, and the separation gap (1
The mill according to any one of claims 14) to 16), which has a separation edge (30) on the end face opposite to 5). 18) The product removal chamber (18) is at least partially delimited by the periphery of the spindle 7 flange (14') and is configured in the form of a gap therein.
-17) The mill according to any one of -17). 19) Spindle (14) is bearing (19, 25, 26)
can be removed from the grinding chamber (16) and pulled out from the grinding chamber (16).
The mill according to any one of claims 1) to 18). 20) The patent in which the product discharge chamber (18) also extends along the end face of the spindle flange (14') opposite to the rotor (12), where it opens radially inward in the form of a gap. The mill according to any one of claims 1) to 19). 21) An interstitial product discharge chamber (18) adjoins the spindle part (14) and extends one section axially into the sliding backing (20).
Mil listed. A tightening wedge connection (37) provided inside the capturing tension anchor (56) toss spindle flange (14')
) Claims 1) to 2 held by
1) The mill described. 23) The rotor (12) is rotatably mounted outside the end face in question and also in an end cover provided on the stator at the end face opposite the rotor (12).
22) The mill described.