JP2554833Y2

JP2554833Y2 - High-speed rotating pulverizer

Info

Publication number: JP2554833Y2
Application number: JP11073191U
Authority: JP
Inventors: 嘉彦後藤; 康一木村; 信宏鳥居
Original assignee: ニチアス株式会社
Priority date: 1991-12-17
Filing date: 1991-12-17
Publication date: 1997-11-19
Also published as: JPH0551447U

Description

[Detailed description of the invention]

[0001]

[Industrial application fields] The present invention relates to FRM, FRC, FR
The present invention relates to a high-speed rotating fine pulverizer used for pulverizing inorganic fibers such as alumina fibers and alumina silicate fibers used as reinforcing fibers of a composite material such as P , and particularly relates to improvement of a piece member structure serving as a pulverizing hammer. .

[0002]

2. Description of the Related Art Conventionally, as a high-speed rotating fine pulverizer of this kind, a metal rotating plate and a fixed plate are arranged in a housing.
A number of rectangular cross-section members are erected on opposing surfaces of both panels, respectively, and the inorganic fiber material supplied from the hopper into the housing is crushed by the rotating member and the fixed member. Pulverizers configured to discharge to the outside through a screen inserted into a crusher are frequently used. Further, a metal member such as SS, SUS, or a cemented carbide is used for the piece member.

[0003]

However, in the above-mentioned high-speed rotating fine pulverizer, abrasion metal powder from a metal member such as a piece member mixes with inorganic fibers as pulverized materials and acts as a harmful metal, thereby causing a composite material. However, there is a drawback in that the performance of the fibers is lowered, and the fibers themselves are colored to lower the commercial value. The drawback is that, for example, by applying a lining made of an organic substance such as a rubber or a synthetic resin to a metal portion such as a rotating plate including a piece member, a fixed platen, and an inner surface of a housing, it is possible to prevent wear metal from being mixed into crushed materials. However, when grinding is performed for a long time, the lining layer is worn on the front surface and both surfaces in the radial direction of the rotating member of the rotating plate that is easily worn, and on both surfaces in the radial direction of the fixed member. Therefore, there is a problem in terms of durability.

[0004]

The purpose of the present invention is to solve the above-mentioned problem, and there is no mixing of abrasion metal powder into inorganic fiber material, and the abrasion resistance is excellent, and the abrasion resistance is excellent. It is a main object of the present invention to provide a high-speed rotating fine pulverizer that can be used for crushing.

[0005]

SUMMARY OF THE INVENTION The present invention provides a high-speed rotating apparatus comprising a rotating plate and a fixed plate arranged in a housing, and a plurality of metal pieces having a rectangular cross section standing on opposite surfaces of both plates. In the pulverizer, a ceramic lining material covering three surfaces, a front surface in a rotating direction and both side surfaces in a radial direction, is fixed to a rotating member side piece member, and a fixed radiating member is fixed to a fixed plate side piece member. The gist has a structure in which a ceramic lining material covering two surfaces on both sides in the direction is fixed. The front side in the rotation direction of the piece member on the turntable collides with the crushed material by the rotation of the turntable, and the crushed material easily collides with both surfaces of the turntable and the fixed plate in the radial direction due to centrifugal force at the time of high-speed rotation. Therefore, it is considered that these surfaces are particularly easily worn. Further, the ceramic lining material can be fixed by a method such as screwing, but it is easy to adhere using an adhesive.

[0006]

According to the above construction, since the surface of the piece member that is easily worn is lined with ceramics, no metal powder is generated due to the wear of the piece member, and the durability of the piece member is improved.
I do.

[0007]

1 to 3 show an embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a housing constituting a high-speed rotary pulverizer, 2 denotes a rotating disk, and 3 denotes a fixed disk, which are made of metal. The fixed platen 3 is supported by a hinge 4 on the housing side so as to be rotatable and openable. 5 is a handle, 6 is a door, 7
Is a door catch.

A number of metal pieces 8, 9 are concentrically provided on the turntable 2 and the fixed board 3, respectively. A ceramic lining material 10 having a U-shaped cross section is fitted so as to cover the three surfaces on both sides in the radial direction, and is fixed with an adhesive. A flat ceramic lining material 11 is fixed to the piece member 9 of the fixed platen 3 with an adhesive on two surfaces on both sides in the radial direction, which are easily worn. In addition, this
Here, both side surfaces in the radial direction of the piece members 8 and 9 are
Has two sides facing each other in the radial direction as shown in FIG.
pointing. Alumina, silicon nitride, zirconia, or the like can be used as the ceramic lining material of the bridge member, but zirconia having toughness is preferably used in consideration of the occurrence of cracks and breakage due to the impact of the pulverizer.

Further, a lining layer made of an organic substance such as rubber, synthetic resin, or the like (shown in FIG. 1) is provided on a portion of the rotating disk 2 and the fixed disk 3 excluding the bridge member and on the inner surface of the housing 1.
It not) is formed. Further, it is preferable to apply a lining to the screen 12 fitted in the housing. This lining layer can be formed by a simple method such as brush painting, a roller method, a tape forming method, and a spray method.

With the above structure, the easily worn surfaces of the metal pieces 8, 9 are completely protected by the ceramic lining materials 10, 11 having excellent wear resistance, so that they do not wear. Therefore no longer be generated wear metallic powder
The durability of the bridge member is also improved. In addition, rotating parts, parts of the fixed plate excluding the bridge member and metal parts such as the inner surface of the housing,
According to the configuration in which the lining layer is formed of an organic substance,
This not only prevents wear on those surfaces but also helps reduce the noise generated during the pulverization process.

[0011]

As described above, according to the present invention, since the bridge member of the rotating plate and the bridge member of the fixed plate of the high-speed rotary pulverizer are protected by the wear-resistant ceramic lining material, the inorganic fiber of the wear metal powder is used. Of the bridge member
The durability is improved and it can be used for a long time.
In particular, according to the present invention, since the ceramic lining material is fixed only to the easily worn surface of the bridge member, the lining work can be greatly reduced in labor and cost can be reduced at the same time.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a high-speed rotary pulverizer showing one embodiment of the present invention.

FIG. 2 is a perspective view of a piece member of the turntable.

FIG. 3 is a perspective view of a bridge member of a fixed board.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Housing 2 Turntable 3 Fixed board 4 Hinge 5 Handle 6 Door 7 Door receiver 8 Turntable-side piece 9 Fixture-side piece 10, 11 Lining material 12 Screen

Claims

(57) [Scope of request for utility model registration]

1. A high-speed rotary pulverizer in which a rotating plate and a fixed plate are arranged in a housing, and a plurality of metal pieces having a rectangular cross section are erected on opposing surfaces of the two plates. A ceramic lining material covering three surfaces, a front surface in the rotation direction and both side surfaces in the radial direction, is fixed to the bridge member, and the two members on both sides in the radial direction are fixed to the member member on the fixed platen side. A high-speed rotary pulverizer characterized in that a ceramic lining material covering the surface is fixed.

2. A high-speed rotary pulverizer according to claim 1, wherein a lining layer made of an organic substance such as rubber, synthetic resin or the like is formed on a portion of the turntable and the fixed board other than the bridge member and on the inner surface of the housing. .

3. The high-speed rotary pulverizer according to claim 1, wherein zirconia (ZrO ₂ ) is used as a ceramic lining material for covering the turntable and the fixed plate.