The Capcl mine is about 15 kilometers from the coast, and the ore body is parallel to the coastline. Heavy mineral ore content of 12% to 15%, and 75% titanium, iron ore, leucoxene and 10% each of zircon, rutile 1%, 0.5% monazite.
Mine using dry mining scraper 25 m 3, with a bulldozer and intermittently loosened ore compaction zone, transported to the stack mine ore mining, transport distance of about 400 meters, then the front end loader to mesh with The sieve is sieved by a 150 mm vibrating sieve. The sieved product is sieved through the second and third sections. The second and third sections of the sieve are sieved by scrubbing the cylindrical sieve and the pneumatic sieve, and the +2 mm grade is used as the waste rock. Discarded; the sieve--2 mm fraction is concentrated by a cyclone and combined with the three-stage sieve product into the rough section for sorting. The rough selection is all carried out by a conical concentrator . The process is one rough selection, one sweep selection, and two rough selections to obtain coarsely selected concentrates for selection. The rough selection process of the plant is shown in Figure 1.
Figure 1 Kappel rough selection process
Since the useful minerals in the rough concentrate are mainly ilmenite, when entering the selected section, the ilmenite is first selected by dry magnetic separation, and the material after titanium is sorted by the spiral concentrator before sorting. The light minerals are further discharged, and then dried, then subjected to electricity, magnetic separation and re-election to select monazite, zircon, ilmenite and the like. The process flow of the Keppel Select Plant is shown in Figure 2.
Figure 2 Kappel Select Process
The replacement process of excavator hydraulic cylinder is as follows:
1. Turn off the hydraulic system: Before replacing the hydraulic cylinder, it is necessary to turn off the system to avoid liquid leakage in the hydraulic system.
2. Disassembling the hydraulic cylinder: Disassembling the hydraulic cylinder requires the use of tools such as wrenches, screwdrivers, etc. Firstly, the hydraulic pipeline needs to be removed, and then the bolts of the hydraulic cylinder need to be removed to remove the hydraulic cylinder from the machine.
3. Check the hydraulic cylinder: Check if there is any damage to the hydraulic cylinder, and if there is any damage, replace it.
4. Install a new hydraulic cylinder: Install the new hydraulic cylinder onto the machine and secure the cylinder with bolts.
5. Connect hydraulic pipeline: Connect the hydraulic pipeline to the hydraulic cylinder, pay attention to the position and direction of the connection, and ensure that the connection is secure.
6. Test system: after replacing the hydraulic cylinder, it is necessary to test whether the system operates normally, check whether the hydraulic cylinder operates normally, and deal with any problem in time.
7. Cleaning work: Clean the liquid and debris in the hydraulic system to ensure that the system is clean and avoid any impact on the system.
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