MINING EQUIPMENT REPAIR. MINING EQUIPMENT
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Mining Equipment Repair
- Mining is the extraction of valuable minerals or other geological materials from the earth, usually from an ore body, vein or (coal) seam. Materials recovered by mining include base metals, precious metals, iron, uranium, coal, diamonds, limestone, oil shale, rock salt and potash.
- Make good (such damage) by fixing or repairing it
- Put right (a damaged relationship or unwelcome situation)
- a formal way of referring to the condition of something; "the building was in good repair"
- Fix or mend (a thing suffering from damage or a fault)
- restore by replacing a part or putting together what is torn or broken; "She repaired her TV set"; "Repair my shoes please"
- the act of putting something in working order again
Equipment Management Workbook
Equipment Management Workbook is a companion to the highly acclaimed text, Equipment Management: Key to Equipment Reliability and Productivity in Mining, Second Edition.
The Equipment Management text, regarded as essential reading for mining professionals, outlines a proven and practical strategy for ensuring the profitability of mining operations through quality maintenance management.
This workbook provides an easy, effective way for readers to review and confirm those valuable lessons presented in the text.
Its step-by-step approach focuses on the most critical aspects of a successful maintenance management program. Each chapter challenges the reader to recall the real-world experiences and recommendations from the text. Engaging multiple-choice, true/false, and yes/no exercises reinforce every key concept.
You'll benefit from Tomlingson's more than 35 years of direct, worldwide maintenance consulting experience in the design, implementation and evaluation of maintenance programs for heavy industry.
The textbook and workbook comprise a "how-to" guide that will enable mining organizations to implement a comprehensive equipment management strategy that ensures equipment reliability, as well as work force productivity.
Harris' Navigation Colliery - 1875
Later to be named Deep Navigation Colliery. As can be seen, this was a very rural area at this time.
Minerals leased from Colonel Lockwood & others - 4000 acres.
Sinking commenced 1873 by Messrs. Dixon & F.W. Harris and was still in progress at the time of this survey, the celebrated Four Feet seam not being reached until early 1879 at a depth of 700 yds.(6'-0" thick). The two shafts were 17ft. dia.. The contractor was Messrs. Brown & Adams, Cardiff, the chief mining engineer being Mr. T. Forster Brown, the local manager Mr. Rees Jones & Mr. W. Beith (Blackwood) the resident Mechanical Engineer. - 7 men were killed during the shaft sinking - the colliery closed 1991. At it's peak in 1923 this mine employed some 2,328 men & boys together with over 100 horses.
The south pit downcast headgear was of wrought iron and stood some 81ft. high to the spindle of the 20ft. dia. sheave wheels. The downcast winding engine, by Messrs. John Fowler & Co. had two 54 inch cylinders with a 7ft. stroke and a spiral drum from 18ft. to 32 ft. and wound four drams per cage on two decks from 693 yds. in one minute on rail guides.
The upcast shaft headgear was constructed of pitch pine and stood 51ft. high to the spindles of the 12ft. dia. sheave wheels and the shaft was capped with conical wooden flap seals which were raised and lowered by the cage. The winding engine at the upcast had a cylindrical drum of 18' dia. which raised two drams per cage on one deck from the 6ft. seam on rail guides.
Pumping was by means of a massive Cornish Beam pump from the Perran Foundry, Cornwall - the beam alone weighed 40 tons and the cylinder 100" dia. with 11ft. stroke - and required 4 No. Lancashire boilers to provide steam.
Ventilation was by a 14'-6" dia. Schiele fan later increased to 16ft. dia..
The colliery derived it's name from that of the main shareholder of the Harris Navigation Steam Coal Co. and hence was given to name Treharris (Harris Town)
Note the two rows of huts just below the railway (lower highlight) - these were living accommodation for some of the senior shaft sinkers and miners and their families due to the lack of local dwellings at that time. They were constructed simply of timber & corrugated sheets and under construction at this time - they are still there almost forty years later and named as Twyn-y-garreg after the local farm - see map of 1914.
In 1874, during the sinking of this mine, trials were conducted in the use of the new method of diamond drilling to speed up the process. Most of the drilling used for the sinking was by hand driven methods although the use of compressed air drills such as the Beaumont and Ingersoll models were also used.
November 1882 - many cottages were in progress of being built by the Company for the workforce and the men could elect to have 10 shillings (50p) a month deducted from their wages for a period of 10 years whereupon they would own the house for the grand sum of ?60.
April 24th. 1884 - a large gathering of workmen attended an open-air meeting to present the manager, Mr. Evans, with a testimonial - the meeting was also attended by Mr. Harris who congratulated them for their strike-free record but chastised them for the fact "that the men do not keep good time and that the mine is still not paid up" - up to ?500,000 had been invested up to that time.
He also stated that between 500-600 tons of coal a week were required simply to power the machinery. Steam for the colliery was supplied via 28 No. 30' x 7' dia. Lancashire boilers
Friday 12th. December 1884 - five men had just commenced descending the No.2 upcast shaft in a bowk when the flat rope snapped. Four of the men fell over 700 yds. to their deaths but one, Thomas/John Dodd(s), managed to grab a guide rope and lower himself gradually to within hailing distance of the shaft bottom from where he was rescued after seven hours - this event caused "great excitement" in the area.
May 1887 - during a hearing to have their rates reduced the owners claimed that it cost them ?3,000 to ?4,000 a year to repair the deep shafts due to excessive squeeze.
September 1889 - a report states that " since 1883 speed trials for H.M. naval ships have been conducted using coal from Harris' Deep Navigation colliery due to it's uniform and excellent quality"
By 1895 there were 7No. air compressors sited on surface (Messrs. Fowler & Co.) with the compressed air taken down upcast shaft to underground haulage engines via. 12" dia. pipes.
In 1895 the general manager was Mr. William Jenkins and the resident manager Mr. Jonah P. Gibbon.
1897 - the timber upcast headgear and shaft seals were replaced by a latticed steel frame and steel airlock casing.
The new frame was 66' high to the spindle of the 16' dia. sheave wheels (2 No.) and a 10' dia. sheave for heavy lifting of equipment - the new frame was designed so that it fitted around the origi
RUSSIAN SCAM - 11
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mining equipment repair
From its origins in the malachite mines of ancient Egypt, mining has grown to become a global industry which employs many hundreds of thousands of people. Today, the mining industry makes use of various types of complex and sophisticated equipment, for which reliability, maintainability and safety has become an important issue. Mining Equipment Reliability, Maintainability and Safety is the first book to cover these three topics in a single volume. Mining Equipment Reliability, Maintainability and Safety will be useful to a range of individuals from administrators and engineering professionals working in the mining industry to students, researchers and instructors in mining engineering, as well as design engineers and safety professionals. All topics covered in the book are treated in such a manner that the reader requires no previous knowledge to understand the contents. Examples, solutions and test problems are also included to aid reader comprehension.
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