JP2004066172A - Solid graphite crusher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a solid graphite crusher capable of recycling solid graphite. <P>SOLUTION: The solid graphite crusher comprises a crushing part 20 for crushing the solid graphite thrown between a rotating edge 36 and a fixing edge 26 into powder having a predetermined particle size, and a measure part 40 arranged at the lower part of the crushing part 20, storing the falling graphite powder, and discharging the graphite powder to the outside when the capacity of the graphite powder reaches a predetermined value. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a solid graphite grinding device.
[0002]
[Prior art]
As is well known, solid graphite is used as a discharge electrode, but when the life of the discharge electrode has expired, the discharge electrode has been landfilled as industrial waste.
[0003]
[Problems to be solved by the invention]
However, 99% of the constituents of the solid graphite are carbon, and disposal as industrial waste is not preferable as waste of resources, and recycling thereof has been demanded.
[0004]
Therefore, an object of the present invention is to provide a solid graphite pulverizing apparatus which enables recycling of solid graphite which has been conventionally discarded.
[0005]
[Means for Solving the Problems]
The technical measures taken in claim 1 to solve the above-mentioned problem are as follows: a pulverizing unit that pulverizes solid graphite charged between a rotary blade and a fixed blade into powder having a predetermined particle size; A solid graphite pulverizing device, comprising: a housing disposed at a lower portion of the section for accommodating the falling graphite powder and discharging the graphite powder to the outside when the accommodation amount of the graphite powder reaches a predetermined value. Is constituted.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the solid graphite crusher according to the present invention will be specifically described.
[0007]
1 to 4, the solid graphite crusher 10 includes a crusher 20. A space 24 that penetrates in the up-down direction is defined in the main body 22 of the crushing unit 20, and a fixed blade 26 is installed at an intermediate portion thereof. Thus, the fixed blade 26 is constituted by the opening edges of a large number of holes 26B regularly drilled in a plate 26A having a semicircular cross section.
[0008]
A rotor 32 is rotatably arranged in a space 24 penetrating in the vertical direction in the main body 22. That is, the shaft 34 of the rotor 32 located in the space 24 is rotatably supported by the main body 22. One end of the shaft 34 extends out of the main body 22, and the pulley 60 is fixed. A rotational force is transmitted to the pulley 60 from a motor (not shown) via a belt (not shown), and the rotor 32 rotates in the space 24 by the rotational force.
[0009]
Three blades 38 constituting a rotary blade 36 are fixed to the rotor 32 at a pitch of 120 degrees, and solid graphite (not shown) charged into the upper opening 24U of the space 24 is fixed to the rotary blade 36. The powder is pulverized into powder having a predetermined particle size in cooperation with the blade 26. The particle size of the graphite powder is generally determined by the diameter of the hole 26B.
[0010]
A basin section 40 is provided below the main body section 22. The basin section 40 stores the graphite powder falling from the lower opening 24L of the space section 24, and discharges the graphite powder to the outside when the storage amount of the graphite powder reaches a predetermined value. That is, the upper and lower limits of the basin section 40 are defined by the upper plate 42 and the lower plate 44, respectively. An accommodating portion 46 is defined between the upper plate 42 and the lower plate 44. A hole 42A is formed on the left side of the upper plate 42, and a hole 44A is formed on the right side of the lower plate 44.
[0011]
The upper plate 42 and the lower plate 44 can be moved in the horizontal direction by the operation of the driving device 50. That is, the upper plate 42 is moved to one of a position for closing the lower opening 24L of the space 24 and a position for making the hole 42A to open the lower opening 24L, while the lower plate 44 is The position is changed to one of a position for closing the lower opening 464L of the portion 46 and a position for opening the lower opening 46L of the accommodating portion 46 through the hole 44A. Thus, when the upper plate 42 is in a position to close the lower opening 24L of the space 24, the lower plate 44 is always in a position to make a hole 44A to open the lower opening 46L of the accommodation portion 46. On the other hand, when the upper plate 42 is at the position where the lower opening 24L of the space portion 24 is opened by making the hole 42A, the lower plate 44 is always at the position of closing the lower opening 46L of the accommodation portion 46.
The graphite powder generated by the cooperation of the rotary blade 36 and the fixed blade 26 falls from the lower opening 24 </ b> L of the space 24 into the storage part 46, and the amount of the graphite powder stored in the storage part 46 is reduced. When the predetermined value is reached, this is detected by a sensor (not shown), and the driving device stops the rotation of the rotor and moves the upper plate 42 to a position where the lower opening 24L of the space 24 is closed. Then, the hole 44A of the lower plate 44 is moved to a position where the lower opening 46L of the accommodation portion 46 is opened.
[0012]
Thus, if the collection bag 62 is attached to the lower opening 46L of the storage section 46, a predetermined amount of graphite powder can be automatically stored.
[0013]
The graphite powder thus obtained can be used, for example, as a carbon additive contained in ductile cast iron.
[0014]
【The invention's effect】
According to the present invention, the solid graphite can be easily recycled by pulverizing the solid graphite into a predetermined amount of powder, which has a great effect in practical use.
[Brief description of the drawings]
FIG. 1 is a front sectional view of a solid graphite grinding apparatus according to the present invention.
FIG. 2 is a side sectional view of the solid graphite grinding apparatus shown in FIG.
FIG. 3 is a plan view of an upper plate that defines an upper side of a basin of the solid graphite crusher of FIG. 1;
FIG. 4 is a plan view of a lower plate that defines a lower side of a basin of the solid graphite crusher of FIG. 1;
[Explanation of symbols]
Reference Signs List 10 solid graphite crusher 20 crusher 26 fixed blade 36 rotary blade 40 basin

Claims (1)

A crushing unit for crushing the solid graphite charged between the rotary blade and the fixed blade into powder having a predetermined particle size, and the graphite powder disposed below the crushing unit and containing the falling graphite powder are accommodated therein. A solid graphite crushing device, comprising: a basin for discharging the graphite powder to the outside when the capacity of the graphite powder reaches a predetermined value.

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