primary crusher

primary crusher

[′prī‚mer·ē ′krəsh·ər]
(mechanical engineering)
References in periodicals archive ?
Tenders are invited for MTPS-I - CHP.I Primary Crusher A&B Operation of Primary Crusher A&B Inspection and maintenance of spider assembly, support wheel assembly, guide roller, drive chain etc cleaning of all equipments Removal of spillage coal at PCR floor, flap gate floor and inspection plat-form of PCR A & B by pass chutes-cleaning of entire stair cases on both sides - Choke releasing and checking the condition of liner plates / mother plates in conveyor 7A & 7B discharge chute, PCRA&B by pass chute, PCR A&B feed chute & hopper for 180 days.
In the old system the primary crusher was a single-toggle jaw unit that had a tendency to produce slabby material which, due to the nature of the rock, led to problems in subsequent processing stages.
This primary crusher is an Allis Mineral Systems-manufactured Superior M11 42-65 unit with a 315kW drive input.
Tenders are invited for Fabrication & erection of cover plates over the material shifting passage from the ground floor to -13 mtr and -23mtr in primary crusher of Raw coal Section at KTW.
Caption: The patented design of the ERC25-25 primary crusher featuries a roll mounted eccentrically between the crushing and the screening chamber, resulting in higher efficiency and productivity when compared with other crusher types, accordind to supplier thyssenkrupp.
The primary crusher module is designed for large quarries and contractors that require a stationary design without the complexity of a conventional stick-built plant.
The novel crushing system was mainly composed of primary crusher, advanced crusher, cyclone dust extractor, bag filter for collection of products, fan, and so forth (shown in Figure 1).
The primary crusher and grinding equipment will be installed by B2Gold Namibia at its Greenfield Otjikoto gold mine project.
However, officials said while fine airborne dust and particulates - especially from the primary crusher and the haulage road - could pose a problem, methods were available to keep them at acceptable levels, and that dust and noise monitoring should be continued.
The company has reported that a primary crusher and Line 1 grinding circuit are complete with the Line 1 lead and zinc flotation circuits essentially complete.
On a recent patrol monitoring visit, an engineer from CNES discovered unusually high readings on the primary crusher at the site, which raised concerns.
"Generally, you've got to have a steady stream of trucks coming to the primary crusher," Stolowski says.

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