JPS62227456A - Horizontal turning type crusher - 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 horizontal rotation type crusher for finely pulverizing powdery materials such as stone and silica, and in particular to a horizontal rotation type crusher that has excellent crushing efficiency. The purpose is to provide a crusher.

[Conventional technology]

Conventionally, various types of equipment have been used to crush powdered materials such as stone and silica, such as repulsion mills, roll crusher mills, and vibrating mills.In particular, rotary mills and vibrating mills have been used as fine pulverizing equipment. was used a lot. However, since the crushing action of conventional rotary mills relies only on gravity, the size of the crushing container must be made extremely large in order to reduce the particle size of the material to be crushed. Since the container and its mounting base are vibrated by the same centrifugal effect as the grinding media, not only is a very strong structural requirement required, but both have disadvantages such as high power consumption and poor operating efficiency. was.

[Problem that the invention seeks to solve]

For this reason, the applicants of the present invention filed Japanese Patent Application No. 60-191871.
In the "Horizontal Rotation Type Pulverizer" issue, we invented a grinder based on a new principle that utilizes the gyroscopic effect, and provided a grinder with improved operating efficiency, that is, grinding efficiency.

The object of the present invention is to provide a horizontal rotation type crusher that further improves the crushing efficiency of the above-mentioned application and is capable of finely crushing various materials to be crushed in a short time.6 [Problems] [Means for Solving the Problems] The horizontal rotation type crusher of the present invention includes a crushing container into which a material to be crushed is charged, and a crushing medium formed by providing an inner circumferential surface of an outer wall of the crushing container so as to be freely rollable within the crushing container. and a rotating circular movement mechanism that revolves the grinding container along a circular orbit, and the grinding container containing the material to be crushed and the grinding medium revolves in a horizontal plane (referred to as gyro motion). The gist is that the axis of the inner circumferential surface of the outer wall of the crushing container is erected so as to be inclined to the rotating surface of the rotating circular motion mechanism, and the revolution axis is appropriately inclined with respect to the rotating axis. It is.

Therefore, the above-mentioned crushing container has a structure for crushing the object to be crushed between the inner wall surface of the container and the crushing medium,
This crushing container is capable of accommodating the object to be crushed and the crushing medium therein, and forms an inner circumferential surface on which the crushing medium can roll, and furthermore, the axis of the inner circumferential surface is relative to the gyro motion surface. They are not perpendicular to each other, but are inclined at a predetermined angle.

The above-mentioned crushing container is caused to make a circular turning motion by a turning circular motion mechanism, and this turning circular motion revolves around the vessel without rotating on a circular orbit.

The rotating circular motion mechanism includes all means for causing the grinding container to rotate in a circular motion. The rotating circular motion means, for example, has shafts on both sides connected eccentrically, and one of the shafts is rotatably loosely fitted into the rotating table, and the other shaft is rotatably loosely fitted to the mounting base, and this mounting It is a mechanism that rotates a shaft around an axis attached to the base to move the swivel table in a circular motion.

In addition, not only one crushing container can be installed on the rotating base of the rotating movement mechanism, but a large number of crushing containers can be installed on the same surface, and even more can be stacked.

[Created for]

Next, the principle and operation of the horizontal rotation type crusher of the present invention will be explained based on FIGS. 1 and 2.

FIG. 1 is a schematic diagram showing the circular movement of the crushing container, and the two-dot chain line indicates the state in which the crushing container is rotated 90 degrees clockwise from the position of the solid line. In this figure, 1 is the grinding container, 2 is the grinding medium, and 3 is the orbit of the center of the grinding container. The radius of the grinding container 1 is R2, the radius of the grinding medium 2 is a
, the rotation radius of the orbit 3 is r.

A grinding medium 2 is introduced into a grinding container 1, and the grinding container 1 is caused to revolve in a horizontal plane (hereinafter referred to as "gyro motion"). When the grinding container 1 is gyroscopically moved with a rotation radius r, the grinding medium 2 moves along the wall surface of the container at a radius defined by the relative relationship (R-a/2) between the radius R of the grinding container 1 and the diameter a of the spherical grinding medium 2. Perform a turning motion. At this time, if there is only one grinding medium 2, it rotates at a speed equal to the gyroscopic movement, and moves while being pressed against the inner wall by the centrifugal force generated by the rotational movement, and the rotational force and centrifugal force of the grinding medium 2 at that time This applies crushing and frictional force to the object to be crushed, and as a result, it is crushed. The centrifugal effect Ks generated by the gyro motion at that time is expressed by the following equation.

Ks = r

Km = (R-a/2) ω2/g R: Radius of the grinding container a: Diameter of the grinding medium R) The centrifugal effect of the grinding medium must be sufficiently large compared to the centrifugal effect of the gyro motion. I can do it. Increasing the centrifugal effect results in increasing the crushing effect.

For example, the centrifugal effect mentioned above.

Rr==25+nm, ω=26.2 (250ppm
), then Ks=1.7, and at that time R=150mm, Km=10.

Km=10 represents the upper limit of the centrifugal effect that can be achieved by conventional vibratory mills.

Furthermore, as shown in FIG. 2, the crushing container 1 has a revolution axis T1 perpendicular to the revolution plane S and a revolution axis T2 inclined at an angle O, so that the centrifugal effect Km is caused by Kmc in the direction of the inner wall surface.
osO A component force of Kmsinθ is generated in the direction of the revolution axis T2. Moreover, the direction of the component force Kmsinθ in the direction of the revolution axis T2 is reversed when it revolves 180 degrees, and due to the action of this component force in the direction of the revolution axis T2,
This produces an effect of constantly moving the objects to be crushed, which are about to be stacked on the bottom of the crushing container 1, to the inner wall surface of the crushing container 1,
It can enhance the crushing effect.

Here, when the number of grinding media becomes significantly large, collisions and friction between the media tend to increase, and free movement along the inner wall tends to be inhibited.On the other hand, collisions and friction of the media increase the grinding effect. I can do it.

In the case of crushed products using crushing media of two or more diameters, segregation occurs inside the crushing chamber depending on the diameter of the crushing media, and the crushing media with a large diameter are placed relatively in the upper part of the crushing chamber, and the crushing media with a small diameter The media tends to concentrate in the lower part of the grinding chamber. In the crushing chamber, coarse particles tend to gather at the top and fine particles gather at the bottom. This has the advantageous effect of increasing the grinding efficiency, since coarse objects to be ground are ground by a grinding medium with a large diameter, and fine objects to be ground are ground by a small grinding medium.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a horizontal rotation type crusher according to the present invention will be described below with reference to FIGS. 3 to 5.

FIG. 3 shows a pulverizer in which a plurality of pulverizing containers 1 are mounted on the same surface, FIG. 4 is a vertical sectional view of the main part, and FIG. 5 is a plan sectional view of FIG. 4. Reference numeral 4 designates a mounting base for a shaft that generates gyroscopic motion. A shaft 6 is attached to the base 4 via a bearing 7, and a pulley 10 attached to the lower part of the shaft 6 and a motor 8 causes one rotation of the shaft 6. to communicate. The upper part of the shaft 6 is mounted on the swivel base 5 via a bearing 7, and the upper and lower shafts of the shaft 6 are eccentric, so that when the lower shaft rotates, the upper shaft is the radius of rotation r
You will be able to turn with this.

Further, a support rod 9 made of an elastic material is interposed between the base 4 and the swivel table 5 so as to prevent the rotation of the swivel table 5 and to support the swivel table 5 so as to be horizontally swingable. Reference numeral 11 denotes a conical column erected at the center of the swivel table 5, and each arc-shaped recess 12 formed on the circumferential side of the column 11 has an inclination angle of θ with respect to the axis of the column 11. The outer wall surface of the cylindrical grinding container 1 with a bottom is brought into close contact with the grinding container 1, and is detachably fastened by a fastening means 13 such as a clamp. Therefore, the crushing container 1 is fixed to the swivel table 5 by the fastening means 13.
When it is attached to, its axis is tilted, and it has a revolving axis with an inclination angle θ.

Incidentally, reference numeral 15 is a lid member that is provided over the input port of the crushing container 1 so as to be openable and closable.

In the horizontal rotation type crusher having the above configuration, after 50 to 80% of the material to be crushed is introduced into the inner cavity of the crushing container 1 which is securely fixed to the support column 11 by the fastening means 13, the lid member 15 is closed, and the motor 8 It is a device that drives and crushes. Rotation speed 100~5
By rotating the swivel table 5 within a range of 00 ppm and a rotation radius of 5 to 50 mm, the above-described movement is imparted to the grinding medium 2, and the object to be ground is pulverized. Further, the horizontal rotation type pulverizer of this embodiment can also perform wet pulverization by adding water.

〔Effect of the invention〕

As described above, the horizontal rotation type crusher of the present invention rotates the crushing container with the tilted axis of rotation in a circular motion.
The material to be crushed is caused to roll and flow in a "figure 8" shape on the inner circumferential surface of the outer wall of the crushing container, and a component force is generated due to the centrifugal effect whose direction constantly fluctuates in the axial direction. This constitutes a horizontally rotating type crusher that can ensure uniform crushing, is small in size, and has excellent operational efficiency, and the practical effects after implementation of the present invention are extremely large.

[Brief explanation of drawings]

Figure 1 is a schematic plan view showing the rotating circular motion of the crushing container;
The figure is a sectional view of the same, FIG. 3 is a horizontal rotation type crusher showing an embodiment of the present invention, FIG. 4 is an enlarged longitudinal sectional view of the same main part, and FIG. 5 is a sectional view taken along the line v-■ in FIG. 4. It is. 1... Grinding container 2... Grinding medium 4...
Base 5...Swivel base 6...Shaft
6...Motor 10...Object to be crushed (Fig. 3, Fig. 4)] 5 Engraving of the drawing (no change in content) Fig. 5 Procedure: FIf3 positive knee'! ′:” Method % Formula % 2, Name of the invention Horizontal rotating crusher 3, Relationship with the case of the person making the amendment Patent applicant address 3-38-11 Hongo, Bunkyo-ku, Tokyo Name Tokuju Kosho Co., Ltd. Representative Metal Inspection 4, Agent 5, Date of amendment order May 27, 1985 Dispatch 1, Case indication Horizontal rotating crusher 3, Person making the amendment Relationship to the case Patent applicant address Hongo, Bunkyo-ku, Tokyo 3-38-11 Name Tokuju Kosho Meio Akitoshi Representative Metal Price 4, Agent 5, Date of amendment order Voluntary 6, Subject of amendment Drawing 2>kll;I':/7Sdj23?ull 烙M on /7
L1659765rh bar i VA6 Akebono-m-04C-4
=;-mu box i-・f-LL Fig. 4

Claims (1)

[Claims] A crushing container into which the material to be crushed is charged, a crushing medium provided within the crushing container such that the inner circumferential surface of the outer wall of the crushing container can roll freely, and a rotating circular motion in which the crushing container revolves around a circular orbit. 1. A horizontal rotation type crusher comprising a mechanism, characterized in that the revolution axis of the crushing container is appropriately inclined with respect to the rotation axis of the rotation circular movement mechanism.