JPH0246260B2 - HASAI * MAKO * SEIRYUKITONIOKERUFUNSAISOCHI - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application and Object of the Invention) The present invention relates to a crushing device for machines such as crushers, grinders, granulators, sand makers, etc. It provides something that can be crushed.

(Structure of the Invention) Therefore, the present invention provides an outer drum that encloses the inner rotor coaxially or eccentrically at a predetermined distance from the outer end circumferential surface of the inner rotor, and It is equipped with a rotating device that rotates a rotor and an outer drum at high speed in opposite directions, and a raw material supply device that feeds raw materials into the inner cavity of the inner rotor. An impact member having a surface is arranged at a predetermined interval in the outer circumferential direction, and a plurality of raw material scattering ports communicating with the inner cavity are opened on the outer end circumferential surface, and the outer drum is configured to absorb the raw material splashed from the scattering ports. Collision members each having an inclined surface facing inward so as to be able to receive and bounce back are disposed at a predetermined gap in the circumferential direction, and a pulverized raw material discharge port communicating with the gap is opened on the outer end circumferential surface. It is said that

(Function) The raw material fed into the inner rotor by the raw material supply device is caused to hit the impact member by the high speed rotation of the inner rotor and fly out from the scattering port at high speed. Collision with the collision member of the drum.

At this time, the raw material that collided with the inwardly facing inclined surface of the collision member rebounds inward, colliding with the raw material scattered from the inner rotor or colliding with the outer peripheral surface of the inner rotor many times. The raw material is ground into fine particles or polished.

Then, the pulverized raw material is discharged by scattering and falling from the pulverized raw material discharge port opened on the outer peripheral surface of the outer drum.

(Example) Hereinafter, details of the present invention will be explained with reference to illustrated embodiments.

In the apparatus of this example shown in FIGS. 1 and 2, 1
is the fuselage, and the outer drum K that houses the inner rotor S
is arranged to accommodate.

The inner rotor S rotates integrally with the rotating shaft 2 by fixing its center portion to the upper end of the rotating shaft 2 which is rotated by an inner rotor rotation motor (not shown). A diffusion plate 2a attached to the upper end of the rotating shaft 2 protrudes from the bottom. The rotating shaft 2
is housed in a holding cylinder 7 fixed to the fuselage 1,
It is rotatably held via a bearing. Also,
The center upper part of the inner rotor S has an inner cavity Sb with the lower end of the vertically supported raw material supply chute 5 facing.
The raw materials are allowed to fall. The inner rotor S has impact members 3 arranged at four locations at predetermined intervals in the outer circumferential direction, and a plurality of raw material scattering ports Sa communicating with the inner cavity Sb are opened on the outer end circumferential surface. Each impact member 3 has one end surface 3 whose end surface along a line drawn radially from the axis serves as an impact surface.
a, and the shape of the inner circumferential surface 3c from the inner end of the other end surface 3b, which is narrower or wider than the width of the one end surface 3a, to the inner end of the one end surface, is a concave curve. It is directed toward one side end surface 3a of the adjacent impact member 3 (see FIG. 2). As a result, the opposite end surface 3b of the impact member 3 adjacent to the one end surface 3a
and form the vertical wall surface of the scattering port Sa.

Incidentally, an impact plate 3d is detachably bolted to the one end face 3a and can be replaced. Furthermore, a collision protrusion 3e is welded to the outer peripheral surface Sc of the inner rotor S.

On the other hand, the outer drum K can rotate on the outer periphery of the holding cylinder 7 on the same axis as the inner rotor S by disposing a rotating member 6 welded to its lower end at the upper end of the fixed holding cylinder 7 via a bearing. It is supported. In addition, a vertical rotary cylinder 8 is welded and fixed to the center of the upper part of the outer drum K to accommodate and pass the raw material supply chute 5, and a support member 1a fixed to the body 1 is attached.
is rotatably supported via bearings. Further, a pulley P is fixed to the rotary cylinder 8 and is connected to an outer drum rotation motor (not shown) by a belt Pa. The outer drum K is formed by arranging a large number of collision members 9 at predetermined intervals in the circumferential direction.
Each collision member 9 has an inclined surface 9a facing inward so as to receive and collide the raw material ejected from the scattering port Sa of the inner rotor S, and an inwardly directed stopper surface 9b at the outer end of the inclined surface 9a. An outward facing stopper surface 9c is connected to the inner end of the surface 9a (see FIGS. 2 and 4). As a result, a pulverized raw material discharge port Ka is formed in the gap between the stopper surfaces 9b and 9c between the adjacent collision members 9 on the outer end circumferential surface Kb. Each of the collision members 9 can be replaced by fixing a block body to the upper and lower plates of the outer drum K with bolts, respectively, as shown in FIG.

Reference numeral 10 denotes a raw material supply device, and the tip of its conveyor is positioned above the chute 5.

Next, the operation of this example will be explained.

First, the motor is driven to cause the inner rotor S and outer drum K to rotate in opposite directions at high speed. When the raw material gravel E is fed into the chute 5 from the raw material supply device 10 in this state, the gravel E that has fallen into the inner rotor S is blown away in the circumferential direction by the diffusion plate 2a of the rotating inner rotor S. This gravel E hits the inner circumferential surface 3c of the impact member 3 many times, and is eventually bounced off by the impact plate 3d, exits from the scattering port Sa, and collides with the impact member 9 of the outer drum K. At this time, the gravel E hits the inclined surface 9a of the collision member 9, and the rebounded gravel E collides with the outer end circumferential surface of the inner rotor S many times.
Alternatively, it collides with gravel E scattered from the inner rotor S many times. and outward facing stopper surface 9c
The outward pulverized grains Ea that hit the discharge port Ka escape and fall. However, because the stopper surface 9b faces inward, the gravel E immediately flows into the discharge port.
There is no way to get out of Ka.

In this way, according to this example, the gravel E is transferred to the inner rotor S.
In addition to colliding with the inner and outer peripheral surfaces of the outer drum K and the inner peripheral surface of the outer drum K,
Because the inner rotor S and outer drum K rotate at high speed in opposite directions, gravel E is ejected from the inner rotor S.
Because the particles collide with the gravel E in the outer drum K at high speed, the gravel E can be crushed extremely efficiently.

Moreover, the damaged impact plate 3d and collision member 9 can be easily replaced.

Although this example is configured as described above, the present invention is not limited thereto. For example, the external shapes of the inner rotor and outer drum themselves are not limited; they may be polygonal, or the axes of the inner rotor and outer drum may be slightly shifted from each other as shown in FIG.

Furthermore, in this example, the inner rotor and outer drum are arranged horizontally to form a vertical device, but as shown in FIGS.
The same effect can be obtained even if the inner rotor and outer drum are arranged vertically as shown in the figure, and a horizontal device is used. In this case, it is necessary to force feed the raw material into the inner rotor, and in this example a spiral type feeding device 11 is used.

Note that the shape and structure of the impact member of the inner rotor are arbitrary, as long as it has an impact surface capable of ejecting the raw material outward.

Further, the shape and structure of the collision member of the outer drum may be arbitrary, as long as it has an inclined surface facing inward so as to receive and collide the raw material ejected from the scattering port.

Furthermore, the uses of the present invention are not limited, and include crushing,
It can be used for polishing ore, grading, removing soft stones, making sand, etc.

(Effects of the Invention) Therefore, according to the present invention, in addition to the raw material colliding with the inner and outer circumferential surfaces of the inner rotor and the inner circumferential surface of the outer drum, the inner rotor and the outer drum rotate at high speed in opposite directions, so that the inner and outer drums collide with each other. Since the raw material ejected from the rotor collides with the raw material in the outer drum at high speed, the raw material can be crushed extremely efficiently, and large quantities can be processed quickly.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view showing one embodiment of the present invention, Fig. 2 is a sectional view taken along line A-A in Fig. 1, Fig. 3 is a partially cutaway perspective view of the rotor, and Fig. 4 is a collision thereof. Fig. 5 is a longitudinal sectional view of another example, Fig. 6 is a BB sectional view in Fig. 5, and Fig. 7 shows an eccentric arrangement of the inner rotor and outer drum. It is a schematic diagram of an example. 1: Airframe, 2: Inner rotor, 3: Outer drum, 3
a: one side end surface, 3b: other side end surface, 3c: inner peripheral surface,
3d: Shock plate, 7: Holding cylinder, 8: Rotating cylinder shaft, 9:
Collision member, 9a: inclined surface, 9b, 9c: stopper surface, S: inner rotor, Sa: scattering port, Sb: inner cavity,
Sc: outer end circumferential surface, K: outer drum, Ka: pulverized raw material discharge port, Kb: outer end circumferential surface, E: gravel, Ea: pulverized grains.

Claims (1)

[Scope of Claims] 1. An outer drum that encloses the inner rotor coaxially or eccentrically at a predetermined distance from the outer end circumferential surface of the inner rotor is arranged in the fuselage, and the inner rotor and the outer drum and a raw material supply device that feeds the raw material into the inner cavity of the inner rotor.The inner rotor has an impact surface that can push the raw material outward. The members are arranged at predetermined intervals in the outer circumferential direction, and a plurality of raw material scattering ports communicating with the inner cavity are opened on the outer end peripheral surface, and the outer drum receives and bounces the raw material flying out from the scattering ports. The crushing and polishing method is characterized in that collision members having inwardly facing inclined surfaces are arranged with a predetermined gap in the circumferential direction, and a crushed raw material discharge port communicating with the gap is opened on the outer end circumferential surface. Grinding equipment in mines, granulators, etc. 2. Each of the impact members of the inner rotor has an end face along a line drawn radially from the axis as an impact surface on one side, and the other end face has a width smaller than or equal to the width of the one end face. The inner circumferential surface shape from the inner end to the inner end of the one side end face is formed into a concave curve or an inclined surface, and is directed toward the one side end face of the adjacent impact member, so that the one side end face and the adjacent impact member face each other. The crushing device according to claim 1, wherein the other end surface forms an opposing wall surface of the scattering port. 3. The crushing device according to claim 1 or 2, wherein each of the collision members of the outer drum has an outwardly facing guide surface connected to the inner end of the inclined surface.