CN2757922Y

CN2757922Y - Tetrahedral conical grinding body

Info

Publication number: CN2757922Y
Application number: CN 200520020113
Authority: CN
Inventors: 宋延秋
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-01-19
Filing date: 2005-01-19
Publication date: 2006-02-15
Anticipated expiration: 2015-01-19

Abstract

The utility model relates to a tetrahedral conical grinding body and relates to a grinding medium. The existing circular ball body has the defect of low grinding efficiency at grinding because the collision and grinding among balls exists in a point contact form. The tetrahedral conical grinding body of the utility model comprises a grinding body 1 whose shape is a regular tetrahedron. An actual test shows that the combination of the utility model and the existing circular grinding ball can raise the ball mill capacity per equipment-hour from 15% to 40%, reduce the grinding power consumption from 10% to 40%, increase the specific surface of flour from 15% to 35%, raise the balling rate and spheroidizing quantity of flour from 10% to 25% and decrease the ball loss over 10%, and the utility model is favorable for popularization and application.

Description

Four-face pyramid grinding body

Technical field:

The utility model relates to a kind of abrasive media.

Background technology:

In the processing and manufacturing field of powder, existing circular spheroid is when grinding material, because ball is to exist with a form that contacts with collision between the ball with grinding, so broken and grinding efficiency is all very low.Though the efficient abrading-ball of the egg round body of existing likeness in form egg is transformed into the curve contact with the contact form between abrasive body by a contact, the efficient of grinding increases, and thoroughly do not solve the low problem of ball mill mill efficiency, and the degree of being improved is limited.

The utility model content:

The utility model is little and make the low problem of grinding efficiency at contact area between the existing mill ball, thereby provide between a kind of mill ball and can large tracts of land contact the four-face pyramid grinding body that improves grinding efficiency, it comprises abrasive body 1, and the profile of described abrasive body 1 is a positive tetrahedron.The utility model product has the following advantages: 1. the utility model product adds fragmentation and the abrasive action that itself does not have in the ball mill material separately, when ball mill adds common ball, and then after adding four-face pyramid grinding body of the present utility model, just thoroughly changed the natural space between original ball and ball, the utility model tetrahedron piece just in time is filled in the original ball nature gap.Because the space reduces significantly between ball, in the grinding material process, material no longer concentrates in the space between ball and ball, but be evenly distributed in the mixed system of ball and material, so just provide more broken probability to ball, four interior concave spherical surfaces of four-face pyramid grinding body are adjacent the protruding sphere effect of cooperatively interacting of four balls simultaneously, push under the effect of external force being distributed in four materials between contact-making surface, grind, pound and smash etc., increased the broken probability of abrasive body greatly to material, thereby the unit-hour output of ball mill is increased substantially, reduced the production power consumption of powder significantly.2. the product quality and the specific area of powder have been improved: because the protruding sphere effect of cooperatively interacting of four balls that four interior concave spherical surfaces of four-face pyramid grinding body are adjacent, under the effect of external force, push, grind, pound and smash etc. being distributed in four materials between contact-making surface, increased the broken probability of abrasive body greatly to material, make the particle of powder be ground into littler physical size better, the fineness of powder is reduced significantly, increased substantially the specific area of powder simultaneously.3. improved the sphericity of powder granule: because mutual extrusion, the effect of milling between interior concave spherical surface and protruding sphere, the probability that makes material form spherical powder increases greatly, therefore, can improve the sphericity and the nodularization amount of powder granule greatly, rationally improve the physics and the chemical property of powder.4. reduce the abrasive media loss of unit powder: by the utility model four-face pyramid grinding body and the unified efficient grinding system of setting up of common ball, the time of grinding unit mass finished product powder is shortened, reduce ball and made the time and the probability of idle work, so greatly reduced the loss of abrasive media.Through actual tests, behind use the utility model product, can improve the unit-hour output 15～40% of ball mill, reduce grinding pow consumption 10～40%, improve the specific area 15～35% of powder, improve the spherical rate and the nodularization amount 10～25% of powder, reduce the ball loss more than 10%.

Description of drawings:

Fig. 1 is the structural representation of the specific embodiment one, and Fig. 2 is the structural representation of the specific embodiment two.

The specific embodiment:

The specific embodiment one: the present embodiment four-face pyramid grinding body comprises abrasive body 1, and the profile of described grinding block 1 is a positive four sides bullet.

The specific embodiment two: the sphere 2 that all is provided with indent on four faces of the abrasive body 1 of present embodiment.

During use, four-face pyramid grinding body of the present utility model and existing circular mill ball together are placed in the ball mill, in rotation process, circular mill ball rubs mutually with the interior concave spherical surface of abrasive body 1, thereby product to be ground is ground.The utility model product and existing circular mill ball are used, and can improve the grinding efficiency of product greatly, are beneficial to and apply.

Claims

1. four-face pyramid grinding body, it comprises abrasive body (1), it is characterized in that the profile of described abrasive body (1) is positive four sides bullet.

2. four-face pyramid grinding body according to claim 1 is characterized in that all being provided with on four faces of described abrasive body (1) sphere (2) of indent.