JPH046827Y2 - - Google Patents

Description

[Detailed description of the invention] (Technical field to which the invention pertains) The present invention is applied to cage mills, hammer crushers, etc. used for crushing and pulverizing materials with relatively high crushing strength, such as rocks, ores, and chemical products. The present invention relates to impact crushers such as impact breakers and the like, and more particularly to a wear-resistant ceramic liner piece bonded to the impacted portion inside the impact crusher.

(Prior Art) For example, in cage mills, wear-resistant ceramic liner pieces are bonded to gauge disks, crushing chambers, etc. in order to prevent wear caused by impacts from rocks and the like. Initially, this liner piece was formed into a flat plate with a flat bottom surface, but
The drawback was that it easily peeled off when struck by rocks, etc. Therefore, it has been proposed to form the bottom surface into a T-shape to make the effective bonding area larger than that of the conventional flat liner piece.

(Problems to be solved by the present invention) According to such a T-shaped liner piece, the falling-off prevention effect is improved compared to the original flat liner piece, but the impact of rocks etc. during operation of the cage mill is It was larger than expected and it was difficult to sufficiently prevent it from falling off.

In other words, in order to prevent falling off, it is necessary to maintain sufficient adhesive strength, but since acrylic resin is originally used for adhesion and is liquid, it can only be applied to liners. Limited to only the abutment between one bottom surface and its opposite surface. Therefore, the only way to improve the adhesion effect with this adhesive is to increase the adhesion area as described above, but increasing the adhesion area by using the T-shaped liner piece as described above However, falling off could not be sufficiently avoided.

(Means for solving the problem) Therefore, in this invention, in addition to adhering the liner pieces and the cage part, we focus on adhering the liner pieces to each other, and use an appropriate adhesive to adhere the joint parts. By doing so, this purpose has been achieved, and the gist of this is that the wear-resistant ceramic material is bonded to the impact area in the impact crusher with an adhesive, and the bottom surface as the bonding surface has a T-shaped profile. It has liner pieces, and the joints between adjacent liner pieces are filled with adhesive.

(Description of Embodiments) The present invention will be described in detail below based on embodiments of a cage mill shown in the drawings. A disk-shaped large cage disk 3 and an annular large cage band 4 are attached to a large cage hub 2 fixed to a rotating shaft 1. Inside the large cage disk 3 and large cage band 4, large cages are arranged at equal intervals. A pin 5 is provided. Inside these large cage pins 5, a rotating shaft 6 that faces the same axis as the rotating shaft 1 is protruded.
They are fastened via a small cage hub 8, a small cage disk 9, and a small cage band 10.

These large cage disk 3 and large cage band 4, as well as small cage disk 9 and small cage band 10, rotate in opposite directions to each other in the crushing chamber 11, and crush and crush the material to be crushed fed from the hopper 12. A wear-resistant ceramic liner piece 13 is bonded to the impacted portion of the crushing chamber 11 with an adhesive in order to protect the crushing chamber 11 from the impact caused by the crushing. As shown in FIGS. 2 and 3, these ceramic liner pieces 13 have side liner pieces 13a on the pin side of the large cage disk 3 and large cage band 4.
Further, T-shaped liner pieces 13b are adhered to the inner and outer peripheral side walls of the disk 3 and the inner and outer peripheral side walls of the cage band 4, and inside the crushing chamber 11, as shown in FIGS. 4 and 5, Liner stand 1
A housing liner piece 13c is bonded through the housing liner 4. Although the small cage disk 9 and the small cage band 10 are not shown,
In the same manner as the large cage disk 3 and the large cage band 4, side liner pieces and T-shaped liner pieces are bonded.

In this way, a large number of liner pieces 13 are used in the impacted parts of the cage mill in order to minimize wear and because the bonding positions are on the circumference or on curved walls of the crushing chamber, etc. ing. Each liner piece 13a, 13b, 13c
A filling part 15 filled with adhesive is further formed in the gap A and the joint part B.

(Effect of the invention) The impact crusher according to the invention not only adheres to the back surface of the wear-resistant ceramic liner pieces as described above, but also adheres each liner piece to each other, so that the liner pieces can be easily removed during impact. It is possible to sufficiently prevent the material from falling off and the corners from being missing.

[Brief explanation of drawings]

Figure 1 is a sectional view of the main part of the cage mill, Figures 2 and 3 are diagrams showing the ceramic liner pieces glued to the disk and band, and Figure 4 is the liner pieces glued to the crushing chamber wall. A partial side view, FIG. 5, is a diagram of the adhesive arrangement of the liner pieces in FIG. 4. 13... Ceramic liner piece, 13a...
Side liner piece, 13b...T-type liner piece,
13c... Housing liner piece, 15... Filling part.

Claims (1)

[Scope of utility model registration request] It has a wear-resistant ceramic liner piece that is bonded to the impacted part in the impact crusher with an adhesive and has a T-shaped outline on the bottom surface as the adhesive surface, and the adhesive is applied to the joint between adjacent liner pieces. An impact crusher characterized by being filled.