JPS6126012Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a pulverizer that mainly pulverizes wood bark, wood chips, etc.

Conventionally, many of these types of crushers have several stages of rotary crushing hammers placed directly below the raw material input hopper, and the input raw materials are continuously crushed over several stages and then crushed by the hammers in the later stages. Ta.

However, this method had the disadvantage that fibrous materials such as tree bark were not cut sufficiently, and long fibers remained forever.

Therefore, this idea involves attaching a series of rotating blades directly below the raw material input hopper to first crush and cut the input raw materials, and then sequentially crushing them with multiple rotary hammers installed in series to make them into fine particles, such as wood bark, etc. Even the toughest fibers can be cut to obtain completely fine particles in the subsequent stage.In addition, it is a circular grinding plate with many protrusions attached to the main shaft, and a donut with many protrusions attached to the rear end of the casing. The purpose of the present invention is to provide a high-performance wood bark and wood chips pulverizer in which the gap between the shaped grinding plate and the grinding plate can be adjusted, and the desired particle size can be obtained through final grinding by adjusting the gap.

An embodiment of the present invention will be described below with reference to the drawings.A rotary blade 3 for crushing and cutting the raw material is attached to one end of the main shaft 2 directly below the raw material input hopper 1 of a horizontal rotary crusher, and the main shaft 2 following this A suitable number of raw material crushing rotary hammers 4 are attached to the main shaft 2, and a particle size adjusting circular grinding plate 5 with a large number of projections is attached to the rear end of the main shaft 2 at right angles to the main shaft 2.
A donut-shaped grinding plate 7 having a large number of protrusions on the surface facing the circular grinding plate is attached to the rear end in a direction perpendicular to the main axis, and the gap G between both discs 5 and 7 is filled with liners 8 and 8. A suction fan 10 that is adjustable and held by
It is made by attaching. Note that the liner 8,
8 may be inserted on the particle size adjustment circular grinding plate 5 side,
Alternatively, the gap G may be adjusted by inserting it into the donut-shaped grinding plate 7 side.

In the present invention configured as described above, the raw material inputted from the raw material input hopper 1 is crushed by the rotary cutter 3, and then sequentially crushed by the rotary hammers 4 connected in several stages and sent to the left in the drawing. The finely granulated raw material is further ground in the gap G between the particle size adjusting circular grinding plate 5 and the donut-shaped grinding plate 7, sent to the next chamber, and dropped downward by the suction fan 10.

In this way, the present invention is equipped with a powerful rotating blade directly below the hopper, so the raw material is first crushed and cut here, so even tough fibers such as wood bark are cut into small pieces here, and then the rotary hammer is used to crush and cut the raw material. It becomes fine particles as it is sequentially crushed. Then, the gap G between the particle size adjustment circular grinding plate 5 and the donut-shaped grinding plate 7 is adjusted by adjusting the thickness of the liner, and finally grinding is performed and fine powder of a desired particle size is obtained. This is a high-performance pulverizer that is most suitable for pulverizing wood bark, wood chips, etc.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which FIG. 1 is a longitudinal sectional view of the whole, FIG. 2 is a plan view of a circular grinding plate for particle size adjustment, and FIG. 3 is a plan view of a donut-shaped grinding plate. ...Crusher, 1...Raw material input hopper, 2...
Main shaft, 3...Rotary cutter, 4...Rotary hammer, 5
... Particle size adjustment circular grinding plate, 6 ... Casing, 7
...Doughnut-shaped grinding plate, 8, 8'...Liner, 9
... Wing plate, 10 ... Suction fan, G ... Gap.

Claims (1)

[Scope of utility model registration request] A rotary blade for crushing and cutting the raw material is attached to one end of the main shaft directly below the raw material input hopper of the horizontal rotary crusher.
A suitable number of raw material crushing rotary hammers are attached to the main shaft that follows this, and a particle size adjustment circular grinding plate with many protrusions is attached to the rear end of the main shaft at right angles to the main shaft, and the rear end of the casing A donut-shaped grinding plate having a large number of protrusions on the surface facing the circular grinding plate is mounted perpendicularly to the main shaft, and the gap between the two disks is held adjustable by a liner. A crusher equipped with a suction fan having an appropriate number of vanes.