JPH025877Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field The present invention relates to a crusher for producing fertilizers and feeds from scallops, rice husks, etc.

Current status of technology and its problems The grinding work described above is generally small-scale work, and the machines used for this work have a grinding process of at most two stages, so the degree of grinding does not necessarily depend on the purpose of use. It wasn't enough.

Means for Solving the Problem Therefore, in the present invention, although it is a small machine, it has a structure that can perform three-stage crushing, and the degree of crushing is higher than that of the conventional machine. In other words, a rotor coaxial with the rotor is placed inside the cylinder, and the shape of the inner surface of the cylinder is changed in three stages in the axial direction. It is designed to perform even pulverization. The shape of the inner surface of the cylindrical body and the rotor side at each stage is as follows.

In a cross section perpendicular to the axis, the inner surface of the cylinder has a regular polygonal part from the starting end, a circular part with several axial grooves, and a conical shape at the tip that is twisted with respect to the above axis toward the end of the cylinder. The parts provided with grooves are arranged in this order, and the rotor that fits concentrically in the cylindrical body has square screws corresponding to the regular polygonal part and the circularly grooved part, and a circular conical part with grooves. The portion has a conical groove twisted in the same direction as the groove on the inner surface of the cylinder. It is more efficient if the number of grooves in this conical portion is different between the cylinder side and the rotor side. The raw material is fed from the end of the cylinder,
The product is discharged from the tip of the conical part.

Embodiment FIG. 1 shows a cross section passing through the axis of the cylinder 1 and a side view of the rotor 2, and FIG.
A hexagonal cross section is shown perpendicular to the axis, but this shape is more efficient in terms of workmanship and raw material crushing efficiency. Figure 3a is a cross section perpendicular to the axis of the portion 1b which has an axial groove, that is, a vertical groove, on the inner surface of the cylinder.
can be parallel to the axis or tilted, but the pitch is approximately
You can choose between 5m/m and 15m/m. The conical portion of the inner surface of the cylinder has an apex angle of approximately 30° in FIG. 4, and there are five grooves 4 provided on the same inner surface, and the helix angle of the grooves, that is, the angle formed with the axis, is approximately 30°. These values can be appropriately selected experimentally, or it is effective to adopt values close to those shown here. 5 is a connecting screw with the circular inner surface portion of the conical portion. 2ab in Fig. 1 is a rotor square screw portion which has a twist in the rotor rotation direction, most of which faces the polygonal inner surface of the cylinder, and its terminal end forms a vertical groove on the circular inner surface of the cylinder. It faces the portion 1b that has. Numeral 7 denotes grooves provided on the surface of the conical body 2c on the rotor side, which are twisted in the rotational direction of the rotor, and are four in number in the figure, which is different from the five grooves 4 on the cylinder side 1c. The reason why different numbers of grooves are selected between the two is to reduce the resistance when the product powder is discharged between the two, but this is not an essential condition. Reference numeral 8 denotes a screw for attaching the rotating shaft to the screw 10. A raw material inlet 11 is provided at the upper end of the polygonal portion of the inner surface of the cylinder corresponding to the starting end of the square screw of the rotor.

While rotating the device of the present invention having the above-described structure, if raw materials such as rice husks and rice husks are input into the raw material input port 11, the raw materials will be fed to the square screw 2ab and will be connected to the square screw 2ab and the inner surface of the cylindrical polygonal portion 1a. Due to the compression, the raw material is sent to the vertical groove section 1b on the inner surface of the cylinder and is pulverized, and it passes through the grooves 4 and 7 of the conical sections 1c and 2c, where it is further pulverized. and ejected from the aircraft.

Effects As described above, according to this machine, the raw material is sent through the cylindrical body in the axial direction, passing through three different correspondingly shaped parts of the inner surface of the cylindrical body and the rotor, and is crushed, pulverized, and pulverized. It is possible to obtain a considerably fine powder and solve the conventional problems.

[Brief explanation of the drawing]

Fig. 1 shows a cross section passing through the axis of the cylinder of the present invention and a side view of the rotor, Fig. 2 shows a cross section perpendicular to the axis of the polygonal part on the inner surface of the cylinder, and Fig. 3 shows the grooved inner surface of the cylinder. Part a is a cross section perpendicular to the axis, b is a cross section parallel to the axis, and Figure 4 is a view of the conical part of the cylinder viewed in the same vertical angle direction.
Fig. 5b shows a partial cross section passing through the axis of the same part, Fig. 5a shows a partial cross section passing through the axis of the same part, Fig. 5a shows the conical part on the rotor side viewed from the same base direction show. 1... Cylindrical body, 1a... Polygonal inner surface portion same as above, 1b
...Grooved circular part as above, 1c...Conical part as above, 2...Rotor, 2ab...Square screw part as above,
2c... Conical part as above, 3, 4, 7... Groove, 1
1... Raw material input port.

Claims (1)

[Scope of utility model registration request] In a cross section perpendicular to the axis, the inner surface of the cylinder has a regular polygonal part from the starting end, a circular part with several axial grooves, and a conical shape with the tip facing the end of the cylinder, twisted with respect to the axis. The rotor is arranged in the order of the grooved parts, and the rotor fits concentrically in the cylindrical body. For the conical shape, twist in the same direction as the groove on the inner surface of the cylinder,
A crusher with a different number of grooves and a raw material supply port at the beginning of the cylinder.