JPS6242751A - Vertical crushing apparatus - 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 [Field of Industrial Application] The present invention relates to a vertical crushing apparatus for crushing solid materials such as 9 coals and 1 limestone.

[Conventional technology]

A conventional vertical crusher is usually constructed as shown in FIG. That is, in the same figure.

1 is the casing of a vertical crusher installed on the foundation; 2
is located at the center of the top wall of casing l, and its axis is at the center of the top wall of casing l.
A supply pipe for the material to be crushed arranged to match the center of the
is a saucer rotatably supported on a pedestal (not shown) 2 installed at the center of the bottom of the casing 1, and rotationally driven by a drive source (not shown); A liner 31 for preventing wear is generally attached to the outer circumference of the upper surface. Reference numeral 4 denotes a truncated cone-shaped crusher rotatably supported on the tip of the support shaft 5 so as to rotate with the rotation of the saucer 3 while being pressed against the upper surface of the liner 31 by a suppressing means to be described later. In the roller, the base of the support shaft 5 is supported via a support shaft 9 by a support member 11 fixedly installed at a proper position outside the side wall of the casing 1 as shown in the figure, so as to be able to swing up and down about the support shaft 9. As shown in the figure, a lever 10 is provided at the base. Reference numeral 12 denotes a suppressing means for pressing the loaf 4 against the upper surface of the liner 31. The suppressing means 12 causes the roller 4 to be pressed against the upper surface of the outer peripheral edge of the saucer 3 around the support shaft 9 via the lever lO. A compression spring is generally used as the pressing means 12 when the crushing capacity of the crushing device is small, but as the crushing capacity increases.

Since it is necessary to increase the pressing force of the roller 4 against the tray 3, a hydraulic device is usually used. Note that a plurality of sets (usually 2 to 4 sets) of the rollers 4 and the members attached thereto are arranged at equal intervals along the circumferential direction of the casing 1. Reference numeral 6 denotes a hot gas introduction pipe disposed on the side wall of the casing 1 slightly below the saucer 3. The hot gas introduction pipe 6 is connected to a hot air source or a hot gas source (not shown), and the hot gas introduction pipe 6 The hot air or hot gas introduced into the casing from above rises through the gap between the outer circumferential end surface of the receiving tray 3 and the inner circumferential surface of the side wall of the casing 1 as an upward air current. 7 is a coarse powder separator arranged in the casing 1 as shown in the figure, 8 is a fine powder amount 1
] The materials to be crushed are introduced into the casing 1 through the materials supply pipe 2.

The material to be crushed is supplied to the vicinity of the center of the upper surface of the rotating mortar-shaped tray 3, but the material to be crushed is moved to the upper surface of the outer peripheral edge of the liner 31 by the centrifugal force of the rotating tray 3.

After being compressed and crushed by the roller 4 which is pressed against the upper surface of the liner 31 by the suppressing means 12, the receiving tray 3 is crushed from the upper surface of the outer peripheral edge.
is thrown toward the outer circumference. The pulverized material thus compressed and pulverized and discharged toward the outer periphery of the tray 3 rides on the upward current of hot air or hot gas from the hot gas introduction pipe 6 and rises while being dried by the hot air or hot gas. and enters the upper coarse powder separator 7, where it is separated into fine powder and coarse powder.
The fine powder is discharged 4 to the outside together with air or gas from the fine powder outlet pipe 8, and the coarse powder falls onto the lower tray 3 and is crushed together with the material to be ground newly supplied from the material supply pipe 2. .

By repeating the above operations, the material to be crushed is crushed into a desired powder form.

[Problem that the invention seeks to solve]

As shown in FIG. 5, the liner 31 and the roller 4 wear against each other, and the gap 34 between the surface of the liner 31 and the outer surface of the roller 4 becomes large, resulting in a significant reduction in the performance of the grinding device. In such a case, in the conventional device, the roller 4
The liner 8 is rotated around the support shaft 9.
It was possible to reduce the gap 34 to some extent by bringing the roller 4 closer to the surface of the roller 4, but since the wear rate of the outer circumferential surface of the roller 4 is generally uneven in the roller axial direction, it is difficult to effectively reduce the gap 34. Therefore, the performance of the pulverizing device had the disadvantage that it deteriorated significantly as the liner 31 and Row/L/4 wore out.

[Means for solving problems]

Therefore, in order to prevent performance deterioration when the rollers and liner wear out in a vertical crusher, the present invention provides a recess on the outer peripheral edge of the liner attached to the upper surface of the saucer, and also provides an axis for rotating the roller. To provide a vertical crusher in which a supported spindle can be moved inward and outward directions of a casing.

[Effect]

When the roller and liner wear out, the spindle is moved toward the outside of the casing to pull the roller out toward the outer circumference, and the large-diameter end of the roller faces the recess on the outer edge of the liner, reducing the gap between the roller and liner. let

〔Example〕

The present invention will be explained in detail with reference to the embodiment shown in FIG.

1 is the casing of the vertical crusher, and 3 is the saucer.

31 is a liner attached to the saucer 3, 4 is a roller, 5 is a roller support shaft, 9 is a support shaft, 10 is a lever, 11
1 is a supporting member, and 12 is a suppressing means.

These arrangements are similar to conventional grinding equipment.

Reference numeral 13 denotes a bearing for the support shaft 9, which is fixed to the inside of the casing and to the support member 11 by several bolts 14 arranged on the circumference of the outer periphery thereof.

The bearing 3 is eccentric to the support shaft 9, and the position of the support shaft 9 can be adjusted by rotating the bearing 13.

15 is an adjustment bolt, 16 is a naso), and 17 is a stopper assembled integrally with the roller support shaft 5.

By adjusting the adjustment bolt 15, the roller 4 rotates around the support shaft 9, and the gap 34 between the outer peripheral surface of the roller 4 and the surface of the liner 31 can be adjusted.

A recess A is formed on the outer periphery of the third liner. In FIG. 2, the roller 4 and liner 31 are worn out.

A case where the gap 34 has increased is shown. The end B of the roller 4 facing the outer periphery of the liner 31 is hardly worn, but in a vertical crusher, as shown in FIG. by i between 3
4 can be adjusted to be smaller. That is, first, by rotating the bearing 13, the roller 4 is moved to the outer circumference of the casing 1 of the vertical crusher, and then, by loosening the adjustment port 15 and pulling it out to the outside of the casing 1, the roller 4 is moved to the support shaft 9. The gap 34 can be adjusted to a smaller size by rotating and falling around the . Thereby, deterioration of crushing performance can be prevented.

〔Effect of the invention〕

By moving the roller toward the outer circumference and adjusting the end of the roller to face the recess in the liner, the gap between the roller and liner can be effectively adjusted even if the roller and liner wear out. Therefore, performance deterioration of the vertical crusher due to wear can be prevented.

[Brief explanation of the drawing]

Fig. 1 is a front sectional view of the main part of the embodiment of the present invention, Figs. 2 and 3 are explanatory diagrams explaining the operation of the embodiment of the present invention, and Fig. 4 is a front view of a conventional vertical crusher. The sectional view, FIG. 5, is a diagram showing the state of wear of a conventional vertical crusher. 1...Casing, 3...Saucer, 4...Roller,
5... Roller support shaft, 9... Support shaft, 10... Lever, 12... Pressing means, 13... Bearing, 31...
...Liner, A...dent. B...Isamu Hajibe 1 Senkan 5Z

Claims (1)

[Claims] A vertical crushing device comprising a roller rotatably supported by a shaft so as to be in pressure contact with a liner attached to the upper surface of a saucer, and solid matter is caught between the liner and the roller and crushed. 1. A vertical crushing device, characterized in that a recess is formed in the outer peripheral edge of the liner, and the roller is supported movably in the radial direction of the receiving tray.