Open AccessPOWER ANALYSIS OF THE CRUSHING PROCESS IN A CONE CRUSHER
Author(s) -
Д. Ф. Сахаров,
А. В. Витушкин
Publication year - 2019
Publication title -
izvestiâ vysših učebnyh zavedenij. černaâ metallurgiâ
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.3
H-Index - 7
eISSN - 2410-2091
pISSN - 0368-0797
DOI - 10.17073/0368-0797-2018-12-980-986
Subject(s) - crusher , process (computing) , structural engineering , engineering , mechanical engineering , kinematics , computer science , physics , classical mechanics , operating system
The literature devoted to cone crushers design and research of its crushing process is generally based on empirical observations, therefore it is commonly considered that material is crushed under the influence of squeezing forces exclusively. Above mentioned liter ature, in turn, theoretical base forms for crushing units design. Based on common understanding, variety of designs of cone crushing machines existing today is characterized by integrity of principles of their work. Majority of theoretical works devoted to cone crushers are focused on such characteristics as efficiency, extent of crushing, increase in percent of useful fraction in ultimate product, or on operational parameters of separate structural elements such as lining armor resistance, increase in endurance of supporting and power nodes, etc. To increase those characteristics crushing cameras with irregular shape of lining armor are designed, design of an active crushing member combines elements of active members of other crushing machines (roll, cheek crushers). However effectiveness of kinematics of active member movement is considered only from the point of view of squeezing forces generation in crushed material and minimization of its slide against it. The uppermost ener gy brought to any crushing machines is spent on loa ding destroying crushed material. Authors of this article consider that under particular circumstances such work conditions can be provided in cone crushers under which energy efficiency of materials crushing process will increase considerably. One of such conditions is creation of multi-axial stress in crushed material. Some reference designs of cone crushers are considered in the article as well as range of their app lication. Mechanism of multi-axial stress generation in crushed material promoting decrease in energy consumption of crashing process is described. Recommendations on development of operating conditions of crushing machine creating multi-axial stress in crushed material are provided.