(1) Mine rock loose work
Perforated blasting and mechanical methods are often used for the loosening of ore in open pit mines.
The crushing of the plow machine is only applicable to rocks with f=1~3 or medium-fractured and strongly fractured ore with f=4~7; and ore with strong fractures with f=8~9.
Common perforating machinery and equipment include down-the-hole drilling rigs , cone drilling rigs , rock drilling rigs , and hydraulic rock drills .
(2) Principles for supporting construction equipment of earth and stone works
1. Production capacity matching: The amount of ore that has been loosened on the working surface is required to meet the loading capacity of the excavator for a certain number of days. The capacity of mining, transportation and drainage equipment should be reserved with a certain wealth factor, and the order should be increased.
2, the concept of the car shovel ratio: refers to the average number of transport vehicles (dump trucks) assigned to each excavator.
3. The main production links are matched with the auxiliary production links.
4. Excavation (production) process is compatible with the conditions of ore deposits
Slurry Pump includes horizontal slurry pump, vertical slurry pump, submersible slurry pump, etc. For horizontal slurry pump, there are metal slurry pump and rubber lined slurry pump.
Horizontal Metal slurry pumps are cantilevered slurry pumps, horizontal centrifugal slurry pump, centrifugal pump theory slurry pump, heavy duty centrifugal slurry pump. They are designed for the handling highly abrasive, high density slurries in the metallurgical, mining, coal, power, building material and other industrial departments etc. The pumps of this type also may be installed in multistage series.
The frame plates have replaceable wear-resistant metal liners. The impellers are made of wear-resistant high chrome alloy .
Horizontal Metal slurry pumps may be adoptable of gland seal or expeller seal. The discharge branch can be positioned at intervals of 45 degrees by request and oriented to any eight positions to suit installations and applications.
Rubber lined slurry pumps and spare parts can fully interchange with world famous brand. These pumps are of heavy-duty construction, designed for continuous pumping of highly abrasive and corrosive slurries. They feature a wide choice of replaceable abrasion resistant metal or moulded elastomer casting liners and impellers, which are all interchangeable within a common costing assembly.
BV pumps are vertical, centrifugal slurry pumps submerged in sump to work. They are designed for delivering abrasive,large particle and high density slurries. These pumps have no need of any shaft seal and sealing water. They can also be operated normally for insufficient suction duties. Wet parts of type BV pump are made of abrasion-resistant metal. All parts of type BVR pump immersed in liquid are lined with rubber outer liner. They are suited to transport non-edge angle abrasive slurry.
ZQ(R) series of slurry pumps are hydraulic devices composed of coaxial motors and pumps that are submerged in the fluid to work. These pumps are characterized by unique structure wide passage, high capacity of removing sewage, and high quality materials, offering excellent corrosion resistance. They are suitable for transferring the liquid containing solid particles, like sand, coal slag, and tailings, and removing slurries in metallurgical plants,mines, steel mills, or power plants, as an ideal alternative to traditional pumps for taking away slurries
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