NIOSHTIC-2 Publications Search

Continuous Excavator for Surface Coal Mining.

Authors
Kay-FJ; Gordon-J; Crow-LH
Source
Proc Off-highway Vehicle Meeting and Exhib Mecca 1977 :1-12
Link
NIOSHTIC No.
10001533
Abstract
A forward-rotating bucket wheel excavator designed to continuously fragment and load unshot coal was tested in an open pit mine. In principle, the excavating wheels rotate faster than required for rolling contact with the surface; therefore, the buckets excavate, carry away material, and provide a tractive effort to aid in pulling the vehicle forward. Production rates of 1,080 tons per hour (1,000 cubic yards per hour) were achieved using 510 horsepower verifying projected fragmenting and loading cost savings of 80 percent over conventional methods. Furthermore, because of the uniform small- size of the coal excavated, additional savings in preparation plant costs are possible.
Publication Date
19770101
Document Type
OP;
Fiscal Year
1977
Identifying No.
OP 7-78
Source Name
Proc. Off-highway Vehicle Meeting and Exhib., Mecca, 1977, SAE Preprint 770743, 1977, PP. 1-12
Page last reviewed: March 11, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division