JPS6331559A - Vibrating mill - Google Patents

Abstract

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

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a continuous type vibrating mill having a horizontal cylindrical crushing tube (vessel) which is vibrated circularly in a vertical plane, and particularly relates to a continuous type vibrating mill having a horizontal cylindrical crushing tube (vessel) which is vibrated circularly in a vertical plane. The installation relates to a vibrating mill with an improved structure.

[Conventional technology]

Conventionally, in the above-mentioned vibrating mill, the perforated plate that prevents the grinding medium charged into the grinding cylinder from flowing out from the outlet has a diameter equal to the outer diameter of the grinding cylinder, as described in Japanese Patent Publication No. 46-15382, for example. The slits have approximately the same diameter and are partially provided with slits through which the crushed products pass, and are interposed in the body of the pulverizing cylinder near the discharge port.

[Problem that the invention seeks to solve]

However, in the above-mentioned conventional vibrating mill, in order to correct the particle size of the crushed product, it is necessary to replace the crushing media such as poles or rods inserted into the crushing cylinder, or to change the perforated plates to have different slit sizes. When replacing it with a new one, it is necessary to disassemble one end of the crushing cylinder, and there is a problem in that removing and installing the perforated plate becomes extremely troublesome.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a vibratory mill in which the work of attaching and removing a perforated plate plate can be easily performed, and in turn, particle size correction can be easily performed.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention provides a continuous vibratory mill having a horizontally cylindrical crushing tube which is vibrated circularly in a vertical plane, and includes a discharge port provided at the lower part of the end plate of the crushing tube. A perforated plate is removably interposed in this outlet.

[Effect]

Attachment and removal of the perforated plate can be performed without disassembling the crushing cylinder.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 and FIG. 2 are a vertical cross-sectional view and a cross-sectional view of a crushing tube in a continuous vibration mill according to the present invention.

In the figure, reference numeral 1 denotes a cylindrical crushing tube consisting of a body 2 and end plates 3 that close both ends of the body. fuselage 2
The 0 oscillator, which is supported by oscillators (not shown) placed on both sides of the , are connected to one or two electric motors via a universal joint, and are synchronized with each other by a timing belt or the like.

The middle part and one end part (first part) of the upper part of the body 2 in the crushing cylinder
A first input port 5 and a second input port 6 for inputting the material to be crushed (not shown) are provided at the left end in the figure. Lid 5a, 6
It is provided so that it can be closed by a. Further, a first discharge lower and a second discharge port 8 for discharging crushed products are provided at both ends of the lower part of the fuselage 2, and these discharge lowers and 8 also close the discharge hole of the fuselage liner, which will be described later. Possible lids 7a, 8a
It is provided so that it can be closed.

On the other hand, at the bottom of both end plates 3 of the crushing tube l, first and second
Similar to the discharge lower 8, a third discharge port 9 and a fourth discharge port 10 for discharging crushed products are provided, and these discharge ports 9
．． The LO is appropriately larger than the first and second discharge lowers 8. A lid 11 or a discharge duct 12, which is used when not in use or in use, is removably attached to the third and fourth discharge ports 9 and 10. Note that the lid 11 and the discharge duct 12 are provided so as to be able to suppress a lid plate and a perforated plate that close a discharge hole of an end liner, which will be described later.

In addition, viewing windows 13 and 14 are provided at the top of each end plate 3. Each of the viewing windows 13 and 14 also serves as an input port for introducing a crushing medium (not shown) such as a pole or rod into the crushing tube 1, and also closes the viewing hole of the end liner, which will be described later. It is provided so that it can be closed by possible lids L3&, L4a.

A body liner 15 made of highly wear-resistant high manganese cast steel or the like is attached to the inner peripheral surface of the body 2 of the crushing tube 1 . The fuselage liner 15 consists of four segments 15a in the axial direction divided into four in the circumferential direction,
Each segment) 15a has bolt holes provided at each of the four corners, a pole 16a inserted into a corresponding hole provided in the body 2, and a bolt screwed into the end of the pole 16a protruding from the body 2. ) 16b and multiple conclusion J! -16
16b of the fastener 16 and the outer circumferential surface of the body 2 to prevent wobbling due to the elongation of the segment h15a. A spring 17 is interposed.

Then, the first . At positions corresponding to the second input port 5.6 and the first and second discharge lowers 8, there are input holes 18.19 and discharge holes 20.2.
1 is provided.

On the other hand, on the inner wall surface of the end plate 3 of the crushing tube 1, an end liner 22 made of wear-resistant high manganese cast steel or ceramics is provided with bolt holes provided in the periphery of the end liner 1 and corresponding bolt holes provided in the end plate 3. A plurality of fasteners 23 consisting of a hole (pol) 23a inserted into the hole and a nut (not shown) screwed onto the end of the pole (pol) 23a protruding from the end plate 3 are used to connect the hole to the inner wall surface of the end plate 3. It is removably attached with a cushion material 24 interposed therebetween. A discharge hole 25 is provided in each end liner 22 at a position corresponding to the third and fourth discharge ports 9 and to, which is a tapered hole that widens outward. Each discharge hole 25 has a third, third,
Depending on whether the fourth discharge ports 9 and 10 are unused or used, a truncated conical cover plate 26 or perforated plate plate 27 is removably fitted, and these cover plate 26 or perforated plate plate 27 are The lid 11
or discharge duct) 12 with a cushion material 28 interposed therebetween. The perforated plates 27 are available in many types with different sizes of slits 27a, and are replaced as necessary. Furthermore, a peephole 29 is provided in each end liner 22 at a position corresponding to the peepholes 13a and 14.

In the figure, reference numeral 30 denotes a cooling jacket provided on the outer periphery of the body 2, and an inlet 31 and an outlet 32 for cooling water etc. are provided at the lower and upper parts of the cooling jacket 30.

In the continuous type vibrating mill having the above configuration, the oscillators are operated synchronously to vibrate the crushing tube l circularly in a vertical plane, and the material to be crushed is charged from an appropriate input port 5.6. The material to be crushed is crushed by collision between the crushing media charged in the crushing mill, collision between the crushing media and the body liner 15, etc., and then passed through the perforated plate 27 or directly to an appropriate discharge lower, 8.9 From .10 onwards, it falls out of the machine as a crushed product and is discharged.

When obtaining crushed products with the finest particle size, the first input port 5
is closed by the lid 5a, the second input port 6 is opened, and the first and second discharge lowers 8 are closed by the lids 7a, 8a.

The third discharge port 9 and the corresponding discharge hole 25 of the end liner 22 are closed by the lid 11 and the lid plate 26, and the fourth
A discharge duct 12 and a perforated plate 27 are attached to the discharge port 10 and the corresponding discharge hole 25 of the end liner 22. In this case, the perforated plate 27 has relatively fine slits 7) 27a.

In addition, when obtaining crushed products with the coarsest particle size, the second input port 6 is closed by 2!6a, the first input port 5 is opened, and the third and fourth discharge ports 9.10 and 2!6a are closed. The discharge holes 25 of the end liner 22 corresponding to these are closed by the lid 11 and the lid plate 26, and the first. Open the second discharge ports 7 and 8.

Furthermore, in order to obtain a crushed product having an intermediate particle size, the input port 5.6 and the discharge lower 8, 9.10 are selected so that the moving distance of the crushed material is changed, or the discharge hole of the end liner 22 is selected. 2.5, the perforated plate 27 is fitted with the slit 27.
Replace with one with a different size. This perforated plate plate 27 can be replaced by removing the discharge duct 12 without removing the end plate 3.

In addition, if the segment 15a of the fuselage liner 15 is stretched and thinned by the impact of the crushing medium during the above-mentioned crushing, the segment 15a is restored by the disk spring 17 between the neck 16b of the fastener 16 and the outer peripheral surface of the fuselage 2. This prevents rattling of 15a.

Since the fuselage liner 15 is made of high manganese StS+, its lifespan is extended, but local wear can be repaired by removing one of the end plates 3 and replacing the corresponding segment 15.

In the above-mentioned embodiment, the fuselage liner 15 is formed by segments 15a divided in the circumferential direction, but the fuselage liner is not limited to this, and can be formed by segments divided in the axial direction or segments divided in the circumferential direction and the axial direction. may be formed.

Furthermore, the prevention of rattling of the segment 15a of the fuselage liner 15 is not limited to the disc spring 17, but may also be done by using a coil spring, rubber, or other elastic body, and the intervening position of the elastic body is set between the segment 15a and the inner circumferential surface of the fuselage 2. It may be done between.

Furthermore, the perforated plate plate 27 is not limited to the case where it is provided in the shape of a truncated conical plate that is pressed by the discharge duct 12 and fits into the discharge hole 25 of the end liner 22, but it is also possible to provide the third and fourth discharge f: 19.10 or these. The discharge duct 12 may have a disc shape that fits into a straight hole corresponding to the discharge hole provided in the end liner 22, and this disc-shaped perforated plate may be removably attached to the discharge duct 12. The perforated plate plate 27 is not limited to being interposed in the third and fourth discharge ports 9.10, but may be removably interposed in ii. the second discharge lower 8.

〔Effect of the invention〕

As described above, according to the present invention, the perforated plate plate can be attached and removed only by attaching and detaching it from the outlet provided at the bottom of the end plate, so there is no need to disassemble a part of the crushing tube as in the conventional case. The perforated plates can be attached and removed very easily, and the particle size of the crushed product can be easily corrected by replacing grinding media or perforated plates with different slit sizes.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 and FIG. 2 are a vertical cross-sectional view and a cross-sectional view of a crushing tube in a continuous vibration mill. 1...Crushing tube 2...Body 3...End plate
9...Third discharge port 10...Fourth discharge port
12...Discharge duct 25...Discharge port z7
...V" dish plate 27a...slit

Claims (1)

[Claims] In a continuous vibration mill having a horizontal cylindrical crushing tube that is vibrated circularly in a vertical plane, a discharge port is provided at the lower part of the end plate of the crushing tube, and a perforated plate plate is removably interposed in the discharge port. A vibrating mill characterized by: