Solid material comminution or disintegration – Processes
Patent
1999-02-10
2000-05-02
Rosenbaum, Mark
Solid material comminution or disintegration
Processes
241 23, 241 65, 241301, 241DIG31, B02C 1912
Patent
active
060562161
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates in general to salvaging industrial and domestic wastes and more specifically to technology of processing wornout tire cases of automobiles or of other machinery, predominantly those with metal cord, as well as to devices for practical application of said technology.
BACKGROUND ART
At present salvaging wornout cases of auto- and tractor air-core tires with metal cord is a serious technical and ecological problem, because the existing technologies of their processing are uneconomic due to much material and power consumption.
One prior-art method for shredding wornout tire cases is known to use their mechanical shredding with the aid of a shredder unit having two shafts rotating against each other and carrying disks and toothed sleeves (SU, A1, 633,601).
However, said method suffers from high power consumption, involves use of sophisticated bulky equipment, and necessitates periodical outages of the technological process for replacing quickly wearing-out knife blades, especially when used for processing metal-cord cases.
One more method for shredding wornout metal-cord-reinforced tire cases is known to comprise cooling the cases down to the state of embrittlement, followed by their mechanical breaking and crushing, using a device having two disintegrators appearing as a die and a punch.
However, said method and disintegrator unit require also much power to be consumed, which is due to a necessity for producing and using a considerable amount of liquid nitrogen.
Known in the art presently is a method for destroying articles made from composites and rubber-like materials, in particular, wornout tire cases, said method comprising preconditioning the cases and their shredding by virtue of an explosion (SU, A1, 1,614,843). However, according to the method, the cases are shredded into large pieces and therefore need further disintegration, using other techniques. Moreover, the method suffers from low disintegration efficiency and low utilization efficiency of explosion energy.
A device for explosion destruction of wornout tire cases comprises a trough-shaped chamber, and a receptacle for shredded rubber, as well as a unit for fixing the explosive in place (SU, A1, 1,614,843).
However, said device fails to provide an efficient shredding of metal-cord-reinforced tire cases nor does it meet the requirements of safety engineering adopted in blasting operations.
DISCLOSURE OF THE INVENTION
The present invention has for its primary object to provide higher efficiency of shredding metal-cord-reinforced tire cases and lower power and material consumption.
The foregoing object is accomplished due to the fact in a method, comprising preconditioning tire cases and their shredding by means of explosion, according to the invention, an explosive action is exerted upon the tire cases in a closed circular system so as to establish a directional circulating annular flow of explosion energy and fragments of shredded tire cases.
According to a specific embodiment of the method, the fragments of tire cases are subjected to a repeated explosive action in a recirculated annular flow formed by the explosion product. According to other specific embodiments of the proposed method, the desired results is attained due to the fact that preconditioning metal-cord-reinforced tire cases for explosion-shredding involves their treating with high-frequency currents, or inductor-heating of the cord wire, or else cooling the tire cases.
The foregoing object is accomplished also due to the fact that a device for destructing and shredding wornout tire cases, comprising a chamber for their accommodating and an explosive fixing unit, according to the invention, is provided with shredding members and a piping which form, together with the chamber, a circular system, while the chamber has a portion shaped as a cone-frustum shell, wherein the shredding members and the explosive fixing units are accommodated; a smaller-diameter portion of the cone-shaped shell communicates with one piping end through a val
Obschestvo S Ogranichennoi Otvetstvennostju "Explotekh"
Rosenbaum Mark
LandOfFree
Method of shredding worn out tire casings and a device for apply does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of shredding worn out tire casings and a device for apply, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of shredding worn out tire casings and a device for apply will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1587439