JP2592226Y2 - Crushing machine - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a crusher of a type generally called a rod mill.

[0002]

2. Description of the Related Art As is well known, a rod mill type crusher accommodates a large number of rods in a rotating drum and rotates the rotating drum to allow the internal rods to float (roll) to form water. The crushed rough is discharged together with the water, and the crushed sand is discharged together with the water. Usually, one end of the rotary drum is provided with a raw stone input port and the other end is provided with a sand discharge port.
The crushed sand to be discharged is a state in which coarse sand and fine sand are mixed, and is provided with a sieving device for classifying the sand.

[0003] In this type of conventional crusher, a vibrating sieve for classifying sand discharged from a sand discharge port of a rotary drum is provided on the ground separately from the main body of the crusher, and the crushed sand is removed. It was transported to a sieving device and classified.

[0004] However, in such a conventional configuration, a dedicated vibration means must be provided, so that the equipment cost is high. Further, since the sieving device is disposed on the ground, a separate installation space is required. There was a problem.

[0005]

[Problems to be Solved by the Invention] The present invention has been made in view of the above points, and its purpose is to
An object of the present invention is to provide a crusher that can classify crushed sand smoothly and finely by utilizing vibration generated when a rotating drum rotates, and that does not require a special installation space for a sieving apparatus.

[0006]

The crusher of the present invention proposed to achieve the above object has a liner attached to the inner peripheral wall of a rotary drum having a rough stone inlet at one end and a sand outlet at the other end. Then, in the crusher configured to accommodate a large number of rods in the rotating drum and crush the rough stone by the floating of the rods accompanying the rotation of the rotating drum, the crushed sand is classified into the sand discharge port. A sieve device is provided, the sieve device has a tapered cylindrical mesh portion, and the mesh portion is mounted and supported only on the inner mesh portion so as to maintain a space around the inner mesh portion. In addition to forming a double structure with the outer mesh portion, the mesh size of the inner mesh portion is formed larger than the mesh size of the outer mesh portion, and the small-diameter side end of the inner mesh portion is attached to the sand discharge port. And supported by a constant, in which the mesh portion is characterized in that the rotating entrains the rotating drum thus provided to vibrate.

[0007]

When the rotating drum of the crusher rotates, the rod engaged with the liner is once lifted by the rotating operation of the rotating drum, and then disengaged from the liner portion and along the inner peripheral wall surface of the rotating drum. By rolling down, the ore is crushed in the rotating drum, and the crushed sand is introduced into the sieving device from the sand discharge port of the rotating drum.

According to the crusher of the present invention, the mesh portion of the sieving device rotates with the rotary drum because the small-diameter end of the inner mesh portion is attached and fixed to the sand discharge port. At the same time, the vibration of the rotating drum caused by the free movement of the rod in the rotating drum is transmitted to the mesh portion, and the inner mesh portion and the outer mesh portion of the double structure vibrate while rotating together.

Therefore, the crushed sand sent from the rotating drum to the inner mesh portion of the mesh portion moves coarsely due to the rotational vibration of the mesh portion, but cannot pass through the inner mesh portion having a relatively large mesh size. The crushed sand falls as it is from the large-diameter opening along the inner surface of the inner mesh portion, and the crushed sand that cannot pass through the outer mesh portion even when passing through the inner mesh portion has its diameter along the inner surface of the outer mesh portion. The crushed sand falls through the large side opening, and the finer crushed sand also passes through the outer mesh part and falls, so that the crushed sand can be smoothly and finely classified.

[0010] In particular, since the vibration of the outer mesh portion of the double mesh portion which is attached around the inner mesh portion is larger than that of the outer mesh portion, fine crushed sand can be passed without causing clogging. , Can be screened efficiently for a long time.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1 and FIG. 2, this crusher uses a plurality of pairs of rotators 2 composed of rubber tires having a wheel structure mounted on a machine frame 1 so that a rotary drum 3 is rotated.
Are supported by the rolling wheel portion on the outer periphery of the drum so that the axis of the shaft becomes horizontal. A number of metal rods (not shown) are accommodated in the rotating drum 3, and the rotator 2 is rotated by rotation driving means 4 such as an electric motor so that the rotating drum 3 is rotated.
Are rotated so that the rod moves freely by a liner (not shown) attached to the inner peripheral wall of the rotating drum 3.

At one end of the rotary drum 3 is a rough ore inlet 5,
A sand discharge port 6 is formed at the other end, and the rotating drum 3
An ore supply device 8 is provided at one end of the device. A sieve device A for crushed sand classification is disposed at the sand discharge port 6 at a distance from the ground, and is attached as described later.

As shown in FIGS. 1 and 2, the sieving apparatus A has a mesh part A1 and a sieve receiver A2 which are formed in a trumpet shape, that is, a cylindrical shape which is tapered so that the diameter increases toward one end. Then, the small-diameter side end of the mesh portion A1 is
The rotary drum 3 is attached to and fixed to the sand discharge port 6 of the rotary drum 3 and is connected and supported.

The mesh portion A1 has a double structure of an inner mesh portion A11 and an outer mesh portion A12 as shown in the figure, and the mesh size (for example, 25 mm) of the inner mesh portion A11 is equal to that of the outer mesh portion A12. It is formed so as to be larger than the mesh size (for example, 5 mm). Then, the small-diameter side end of the inner mesh portion A11 is directly attached and fixed to the sand discharge port 6 of the rotary drum 3, and is connected thereto. Further, the outer mesh portion A12 has a space around the inner mesh portion A1. And is attached and supported only to the inner mesh portion A1. by this,
The mesh portion A1 rotates together with the rotary drum 3 and vibrates due to transmission of vibration of the rotary drum 3.

The sieve tray A2 accommodates the crushed sand which has been sieved, is supported below the mesh part A1, and the upper surfaces of the respective housing parts A21, A22, A23 are opened upward. I have.

Therefore, the coarse crushed sand having a particle size of 25 mm or more does not pass through the inner mesh portion A11 but falls along the inner peripheral surface of the inner mesh portion A11 to be sieved.
Of the container A23.

The crushed sand having a particle size of 5 mm to 25 mm passes through the inner mesh part A11 and
12 falls along the inner peripheral surface and is stored in the storage portion A22 of the sieve receiver A2.

Further, fine crushed sand having a particle size of 5 mm or less is used for the inner mesh portion A11 and the outer mesh portion A12.
And is stored in the storage part A21 of the sieve receiver A2.

The ore supply device 8 is configured to supply the ore to the ore inlet 5 through a supply pipe 82 as shown in FIG.

Reference numeral 9 in the drawing denotes a support extending obliquely upward from the machine frame 1, and a horizontal mounting table 91 is attached to the upper end of the support.
The rough stone supply device 8 is provided on the mounting table 91.
Further, the sieving apparatus A can be supported by the mounting table 91. In this case, only the sieve support A2 is supported so that the rotation and vibration of the mesh portion A1 can be allowed. Reference numeral 92 denotes a work table.

The crusher constructed as described above, when the rotary drum 3 is rotated and the ore and water are fed from the ore supplying device 8 to the rotating drum 3 which rotates, the rotary drum 3
The rough stone is crushed by the rod that floats by the lifter action of the inner liner, and the crushed crushed sand is discharged from the sand discharge port 6 of the rotary drum 3 to the screening sieve A for classification. At this time, the rotating drum 3 supported by the trochanter 2 made of a rubber tire vibrates due to the loose movement of a rod or a rough stone in the rotating drum.

The mesh portion A1 of the sieving device has the small-diameter end of the inner mesh portion A11 directly attached to and fixed to the sand discharge port 6, and is connected and supported.
The mesh part A1 having a double structure rotates with the rotation of the rotary drum 3, and the vibration of the rotary drum 3 generated by the loose movement of the rod in the drum is transmitted to the mesh part A1, and the mesh inside the mesh part A1 is meshed. The part A11 and the outer mesh part A12 also vibrate while rotating together with the rotary drum 3, and as a result, classification is performed by the sieving apparatus A as described above.

FIG. 3 is a sectional view showing a second embodiment of the present invention.

As in the first embodiment, the sieving device B comprises a mesh portion B1 which is bent into a trumpet shape, that is, a tapered cylindrical shape, and a sieve receiver B2.
As shown in the figure, the small-diameter end of the mesh portion B1 is directly attached and fixed to the sand discharge port 6 of the rotary drum 3, and is connected and supported.

The mesh portion B1 has a double structure of an inner mesh portion B11 and an outer mesh portion B12 as shown in the figure. The inner mesh portion B11 has meshes B111 and B112 having different mesh sizes (for example, 40 mm and 25 m).
m) and the outer mesh portion B
Reference numeral 12 denotes a mesh size (for example, 5 mm) smaller than the mesh size of the inner mesh portion B11.

The inner mesh portion B11 has a small-diameter end portion directly attached and fixed to the sand discharge port 6 of the rotary drum 3 as shown in the figure, and the outer mesh portion B12 is formed around the inner mesh portion B11. It is installed so as to have a space between them. Thus, similarly to the first embodiment, the mesh portion B1 rotates accompanying the rotating drum 3 and vibrates by transmitting the vibration of the rotating drum 3. The sieving action of the crushed sand is performed in the same manner as described above.

The sieve tray B2 accommodates the crushed crushed sand, and is supported below the mesh part B1, and each of the accommodation parts B21, B22, B23, B
The upper surface of 24 is open upward.

Therefore, the crushed sand crushed by the rotating drum 3 and discharged to the sieving apparatus B has a particle size of 40 mm.
The above crushed sand does not pass through the inner mesh part B11,
It falls along the inner peripheral surface of the inner mesh part B11 and is stored in the storage part B23 of the sieve receiver B2.

The crushed sand having a particle size of 40 mm to 25 mm passes through the mesh B112 of the inner mesh portion B11 and is stored in the storage portion A22. The crushed sand having a particle size of 25 mm to 5 mm is stored in the mesh B111 of the inner mesh portion B11. And is stored in the storage portion B21.

Further, the crushed sand having a particle size of 5 mm or less passes through the inner mesh portion B11 and the outer mesh portion B12 and is stored in the storage portion B21 of the sieve tray B2.

[0031]

As is apparent from the above description, according to the crusher of the present invention, the rotation and vibration of the rotating drum caused by the loose movement of the rod in the rotating drum are attached and fixed to the sand discharge port. It is also transmitted to the mesh part of the double structure of the sieve device that is connected and supported, and the inner and outer mesh parts of the mesh part vibrate while rotating,
Since the discharged crushed sand is sieved with vibration and classified, the vibration means exclusive for the sieving becomes unnecessary, and the facility cost can be reduced. In addition, since the sieve device is supported at a distance from the ground, a special installation space for the sieve device is not required.Moreover, the mesh portion of the sieve device has an inner mesh portion having a relatively large mesh size and a mesh portion having a mesh size larger than this. Due to the double structure with the fine outer mesh part, the crushed sand can be classified smoothly and finely, especially the fine outer mesh part attached around the inner mesh part of the double mesh part. Since the vibration increases, fine crushed sand can pass through the mesh without causing clogging, and can be efficiently sieved for a long time.

[Brief description of the drawings]

FIG. 1 is a front view showing a first embodiment of the crusher of the present invention.

FIG. 2 is a sectional view showing a first embodiment of the crusher of the present invention.

FIG. 3 is a sectional view showing a second embodiment of the crusher of the present invention.

[Explanation of Signs] 3 Rotating drum 5 Rough inlet 6 Sand discharge port A, B Sieve device A1, B1 Mesh portion A11, B11 Inner mesh portion A12, B12 Outer mesh portion

Claims (1)

(57) [Scope of request for utility model registration] 1. A liner is attached to an inner peripheral wall of a rotary drum having a rough stone input port at one end and a sand discharge port at the other end, and a number of rods are accommodated in the rotary drum. In a crusher configured to crush a rough stone by the movement of a rod, a sieve device for classifying the crushed sand is provided at the sand discharge port.
This sieving device has a tapered cylindrical mesh part.
Having the inner mesh part and the periphery thereof
Attach only to the inner mesh part so as to keep the space
It has a double structure with the outer mesh part
The mesh size of the mesh part is larger than the mesh size of the outer mesh part
The inner mesh part has a smaller diameter end.
Attached and fixed to the sand discharge port and supported by the mesh part
Is provided to rotate and vibrate along with the rotating drum.
Crusher characterized by comprising Te.