JPS63147560A - Continuous type vibrating mill - 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 [Industrial Application Field] The present invention relates to a continuous vibratory mill having a horizontal cylindrical crushing vessel (vessel) which is vibrated circularly in a vertical plane.

[Prior Art] Conventionally, the above-mentioned continuous type photographing mill has been developed, for example, by
As described in Publication No. 848, an input port for the crushed product is provided at one end of the upper body of the crushing tube, and an outlet for the crushed product is provided at the other end of the lower body of the crushing tube. .

In the vibrating mill configured as described above, the material to be crushed that is inputted from the input port is caused by the circular vibration of the crushing tube to cause the crushing media such as rods or poles inserted into the crushing tube to interact with each other and the crushing media and the inner wall of the crushing tube. It is crushed by collision and discharged as a crushed product from the discharge port.

[Problems to be Solved by the Invention] However, according to the above-mentioned conventional continuous-type video mill, when producing crushed sand for concrete, for example, the distance of movement of the material to be crushed is long, so that it cannot pass through a sieve of 0.15 m. 2 fine powders
There is a problem that occurs when the amount exceeds 0% by weight. In particular, in order to improve processing capacity, circles added to the crushing cylinder (increasing the
A problem arises in that the amount of fine powder generated increases in proportion to the increase in the acceleration of circular vibration.

SUMMARY OF THE INVENTION Therefore, the present invention provides a continuous motion mill that is capable of producing a predetermined amount or less of fine powder with a particle size smaller than a desired size regardless of the increase or decrease in circular vibration when producing coarse aggregate or fine aggregate. That's what I'm trying to do.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides a continuous vibrating mill having a horizontally cylindrical crushing cylinder that is vibrated circularly in a vertical plane, in which a A cylindrical perforated plate liner is inserted into the body with a required distance between the liner and the body.

[Function] According to the above means: The material to be crushed, which has become the desired particle size through crushing, is discharged from the crushing cylinder through the perforated plate liner, and is not subjected to excessive crushing action.

[Example] Hereinafter, an example of the present invention will be described based on FIGS. 1 to 3.

In the figure, 1 is a cylindrical crushing tube consisting of a cylindrical body 2 and end plates 3 that close both ends of the body. The oscillator is elastically supported horizontally on a base (not shown) via a plurality of connecting plates 5 attached to the outer periphery of the body 2 so as to sandwich each support plate 4, and placed on both sides of the body 2. Ia<not shown). The oscillator has a variable vibration amplitude and is equipped with a variable unbalanced weight that generates a high acceleration of 14 G or more.
It is connected to one or two electric motors and synchronized with each other by a timing belt (both not shown).

The object to be crushed (
An input port 6 is provided for inputting the liquid (not shown). In addition, a discharge lower having a width of about 176 circumferences of the body 2 is provided at the bottom of the body 2 of the crushing tube 1 over almost the entire length of the body 2 in order to quickly discharge the crushed products (not shown). This discharge lower is surrounded by a cover 8 that is open downward.

A viewing window 9 is provided at the upper part of both end plates 3 provided in the crushing tube 1. Each viewing window 9 also serves as an input port into which a crushing medium (not shown) such as a rod is inserted into the crushing tube 1. A lid 10 which also closes the viewing hole is removably provided.

On the other hand, a body liner 11 made of a wear-resistant steel plate is attached to the inner circumferential surface of the body 2 of the crushing tube 1 in order to prevent wear caused by the crushed products passing through the perforated plate liner, as will be described later. 11 consists of a plurality of segments that are appropriately spaced apart in the circumferential direction and the axial direction and are removably attached, and the input hole 12 and the discharge hole 13 are provided at the required positions of the segment corresponding to the input port 6 and the discharge lower. is provided. Inside the fuselage liner 11, a cylindrical perforated plate liner 14 with a high aperture ratio made of high manganese cast steel or the like with excellent wear resistance is arranged at a required distance from the inner peripheral surface of the fuselage liner 11. That is, this perforated plate liner 1
The crushed products passing through 4 are passed through the fuselage liner 11 and the perforated plate liner 14.
They are fitted concentrically with a gap that allows for the discharge from the discharge lower without being retained between the two. Perforated plate liner 14
is composed of a plurality of segments 14a that are divided into a plurality of segments in the circumferential direction and the axial direction (in the embodiment, three segments in the circumferential direction and three segments in the axial direction), and each segment 14a
is provided with a large number of slits 15 cut out in the circumferential direction at appropriate intervals in the circumferential and axial directions and having a width approximately the same as the desired particle diameter of the crushed product, and with the Legs 16 are provided on the outer surface near the four corners to provide spacing. Each segment 14a includes a bolt hole provided in each leg 16, a bolt 17a inserted into a corresponding hole provided in the fuselage liner 11 and the fuselage 2, and an end portion of the bolt 17a protruding from the fuselage 2. The nut 17b of the fastener 17 and the body 2 are removably attached to the inside of the body 2 at appropriate distances in the circumferential direction and the axial direction by a plurality of fasteners 17. A countersunk 18 is interposed between the segment 14a and the outer circumferential surface of the segment 14a to prevent wobbling due to stretching of the segment 14a.

Further, on the inner wall surface of both end plates 3 of the crushing tube 1, an end plate liner 19 made of high manganese cast steel, ceramics, etc. with excellent abrasion resistance, etc. is provided with bolt holes provided around the end plate liner 19 and corresponding thereto. Holt 2 inserted into the hole provided in the end plate 3
It is removably attached by a plurality of fasteners 20 consisting of a bolt 20a and a nut 20t screwed into the end of a bolt 20a protruding from the end plate 3. A peephole 21 is provided at a position of the end plate liner 19 corresponding to the peephole 9 of the end plate 3.
is provided.

In the continuous type camera mill having the above configuration, when each oscillator is operated synchronously to vibrate the crushing tube 1 circularly in a vertical plane at a high acceleration of 14 (3 or more), the material to be crushed is inputted from the input port 6. The material to be crushed is crushed in a very short time by violent collisions between the crushing media such as rods inserted into the crushing tube 1, and frequent collisions between the crushing media and the perforated plate liner 14, resulting in a desired particle size. The crushed product is passed through the slit 15 of the perforated plate liner 14 to the perforated plate liner 14.
and the fuselage liner 11, and moves along the inner peripheral surface of the fuselage liner 11 and falls through the discharge hole 13 of the fuselage liner 11 and the discharge lower of the fuselage 2 and is discharged out of the aircraft.

Further, if any of the segments 14a of the perforated plate liner 14 is worn out, one of the end plates 3 is removed together with the end plate liner 19, and the segment 14a is replaced.

In the above embodiment, the slits 15 of the perforated plate liner 14 are cut out in the inner circumferential direction, but the slits are not limited to this, and may be cut out in the axial direction, or may be circular or rectangular. It may also have a large number of holes.

[Effects of the Invention] As described above, according to the present invention, the moving distance of the material to be crushed is shortened compared to the conventional technology, and the material to be crushed, which has a desired particle size, is immediately crushed through the perforated plate liner. Since it is discharged from the cylinder and is not subjected to excessive pulverization action, the generation of fine powder with a particle size smaller than the desired size can be reduced to a predetermined amount or less, and the desired particle size increases in proportion to the increase in the acceleration of circular vibration. The amount of fine powder generated will not increase.

[Brief explanation of the drawing]

The figure shows one embodiment of the present invention, and FIG. FIGS. 2 and 3 are a vertical front view, a half-section side view, and a half-section cross-sectional view of the continuous vibration mill, respectively. 1...Crushing cylinder 2...Body 3...End plate 6...Input lower...Discharge port
14... Perforated plate liner 14a... Segment
15...Slit 16...Legs

Claims (1)

[Claims] In a continuous vibration mill having a horizontal cylindrical crushing tube that vibrates circularly in a vertical plane, a cylindrical perforated plate liner is inserted into the crushing tube with a required distance between it and the body. A continuous vibration mill featuring: