翻译--PSSB选矿岗位技术操作规程.doc

Technical Regulations for Equipment of Malaysia PSSB Mineral Processing PlantSection 1 Post Technical Regulations for Ball MillSection 2 Technical Regulations for Hydrocyclone SetSection 3 Technical Regulations for Disk FeederSection 4 Technical Regulations for Belt ConveyorSection 5 Technical Regulations for Mineral Processing Magnetic SeparatorSection 6 Technical Regulations for High Frequency Vibrating ScreenSection 7 Technical Regulations for Magnetic Separation ColumnSection 8 Technical Regulations for Ceramic FilterSection 9 Technical Regulations for Slag Slurry PumpSection 10 Post Technical Regulations for Water PumpSection 11 Technical Regulations for ThickenerSection 12 Technical Regulations for Vacuum Belt FilterSection 1 Post Technical Regulations for Ball Mill1. Performance parameters of ball millWorking nameModel and specificationmmDrum volume m3Drum revolution number rpmBall capacity tPower(KW)QuantitySetOne-stage ball millMQY2700/400020.21.7354002Two-stage ball millMQY2700/40002021.73540022. Requirements before starting2.1 Contact well before starting and obtain the start command. 2.2 Check whether the interlock protection and safety device are complete and reliable. 2.3 Check whether each position of the equipment is normal, such as feed system, driving system, electrical system, lubrication system, main system, etc.2.4 Check whether each instrument is normal and whether each screw is fastened.2.5 Conduct turning for 1-2 weeks if stop for more than 8 hours and for 1-2 weeks if emergency stop for more than 2 hours.2.6 Anybody shall not stay near the equipment to be started. 3. Starting sequence3.1 Start sequence: lubrication systemopen each water valvesynchronous motorconveying system (slag slurry pump)pneumatic clutchstart feed beltstart vibrating feeder.3.2 Cautions in starting process: start the main motor after lubrication and cooling system are normal. Under the general situation, the same ball mill should not be started continuously for two times within 10 minutes.4. Requirements in operation 4.1 Stabilize the ball mill hour, adjust and control the grinding fineness, to enable the indexes to meet the requirements.4.2 Check the grinding fineness and grinding concentration according to the criteria per hour.4.3 Observe the variation of ore discharge water and feed water of ball mill, and timely adjust if any water shortage or blocking and leakage phenomena. 4.4 Timely clean the crushed ball and crushed ore. 4.5 Frequently observe the variation of amperemeter, meter and pressure gauge, and check the operation sound, smell, clearance, fastening, lubrication and abrasion conditions of each position. If any problem, timely report to the operation leader and the plant dispatching room for handling. The check criteria are as follows: 4.5.1 Rolling bearing temperature shall not exceed 70; sliding bearing temperature shall not exceed 60; and motor temperature shall not exceed 60.4.5.2 Foundation bolts and connecting bolts of each position shall be complete and fastened.4.5.3 The operating current shall be free from fierce fluctuation and shall not exceed the rated value.4.5.4 Each position shall be free from oil, water or ore leakage.4.5.5 Handling of ball spitting: if any ball spitting, stop feeding and increase water supply capacity; if ball spitting is severe, stop for handling.4.5.6 Record the check results; when significant defect endangers human and equipment safety, immediately report to the operation leader and the plant dispatching room.5. Stop sequence5.1 Stop feederstop feed beltwait for material being handled cleanlilypneumatic clutchstop synchronous motorstop conveying systemmill shut downlubrication systemshut down water valvestop oil pump.5.2 Cautions in stop process:5.2.1 First stop feeding before stop, and handle load for 15-20 minutes.5.2.2 After load is handled completely, move the start handle to the stop position, and stop exciting (push stop button down).5.2.3 When the main motor is operating, the slow-speed driving device shall not be started; when the slow-speed driving device is operating, the main motor shall not be started.6. Emergency stopIn the operation process, the mill may sometimes encounter some special circumstances, the emergency measures must be taken under the following conditions in order to guarantee the equipment safety:6.1 Main gear and pinion gear are abnormal in meshing and suddenly have large vibration. 6.2 Lubrication system is in fault and incapable of normally supplying oil.6.3 Lining screw is loosened or broken or fallen off.6.4 Foundation bolts of main bearing, driving device and main motor are loosened.6.5 There is no material in the drum but the drum continues to run in no load.6.6 The temperature rise of main bearing and main motor exceeds the specified value or the main motor current exceeds the specified value.6.7 Conveying equipment is in fault and loses the conveying capacity.6.8 Handling for sudden power off: cut off the power supply first for sudden power off, and shut down all the valves.6.9 Other conditions requiring emergency stop occur.Note: When accident stop occurs suddenly, immediately stop feeding, cut off the power supply of motor and other units, and then conduct accident handling, hang a warning board, and do not arbitrarily start the mill without the permission of designated personnel.Section 2 Technical Regulations for Hydrocyclone Set1 Performance parameters of swirlerWorking nameModel and specificationQuantity(set)Internal diametermmDesilting calibermmCone angleOne-stage500x4250065-80202 Preparation before work2.1 Check, before starting, whether the abrasion of feed pipe, bed charge pipe, overflow pipe and conical drum is severe, whether the pipe has water or material leakage phenomenon, whether the overflow tank and underflow tank have sundries, and whether the control valve is flexible and tight.2.2 Valves may be completely opened (such as operating swirler) or completely closed (such as standby swirler), but shall not be in half opening state (i.e. valves shall not be used to control flow).3 Normal operation3.1 In normal operation of equipment, frequently check the stability of pressure gauge, flow size of overflow and underflow, discharge state, and regularly detect the overflow and underflow concentration and fineness.3.2 The feeding pressure shall be stabilized above the pressure required for production (feed pressure 0.10.12Mpa) and shall be free from large fluctuation generation.3.3 Frequently check whether the overflow and underflow discharges of all the operating swirlers are smooth.3.4 Frequently observe the swirler underflow discharge state, and periodically detect the underflow concentration and fineness. Timely adjust underflow concentration fluctuation or underflow from fine particle uniformity. In normal working condition of the swirler, the bed charge discharge shall be umbrella shaped. If the underflow concentration is too large, the underflow will be discharged columnar or blocky.3.5 Regularly detect the overflow concentration and fineness. The increase of overflow concentration or overflow from coarse particle may be related to the increase of feed concentration and to the blocking of underflow opening. Adjustment: if any overflow from coarse particle, first detect whether the underflow opening is blocked, and then detect the feed concentration, and adjust according to specific conditions.3.6 When the equipment is in smooth operation at constant pressure, check the leakage of the connecting point and take remedial measures if necessary.4. Handling for special circumstancesIf the feeding pressure drops, the following check needs to be conducted:4.1 If the pressure fluctuation is caused by the drop of pump tank liquid level, the adjustment may be conducted through increasing the liquid level or shutting down one or two swirlers or reducing the pumping speed.4.2 If the pressure fluctuation is caused by pump blocking or abrasion, the pump needs to be overhauled.5 Stop operation5.1 For stop, the ore pulp sump shall be emptied timely in case of blocking accident caused by precipitate and too high concentration in starting once again.5.2 Record the equipment operation conditions and existing problems in detail as required.Section 3 Technical Regulations for Disk Feeder1. Performance parameters of disk feederNameDisk diameter (mm)Feeding capacity(t/h)Revolution number(rpm)Power(KW)Operating frequency(HZ)Quantity(Set)Disk feeder2000301001515305062. Check whether the disk is in horizontal position before starting, and check whether the operation is flexible.3. Start only after lubricating oil is added; check the disks rotation direction in starting so as to determine whether the motor connection is correct.5. Check whether there is periodic noise and vibration and whether there is oil leakage phenomenon.6. Check bearing temperature rise and lubricating oil temperature rise conditions.7. Formally put into service only after all are checked as normal. 8. Check whether the position of scraper and movable sleeve meets the requirements of feeding capacity before starting.9. Restart after the next procedure is in normal operation for starting; first stop the feeder for stop.10. In rotation, frequently check the lubrication condition, bearing working condition and each temperature rise condition, and immediately eliminate if any overheating phenomenon.11. For long-term operation, periodically check the abrasion conditions of scraper, movable sleeve, disk worm gear, worm, reduction box and sealing element, for the purpose of timely adjusting, repairing or replacing. For equipment operation, such operation as adjustment and repair is not allowed.12. Frequently adjust the feed quantity of disk feeder according to the grinding conditions.Section 4 Technical Regulations for Belt Conveyor1. Performance parameters of belt conveyor equipment Working nameQuantityLength (m)Width (mm)Power (Kw)Speed (m/s)Capacity (t/h)C01 belt131710001321.25700C02 belt128210001851.25700C03 belt1921000551.25700Gathering belt219650111.25100Feed belt29650111.25100C04 belt11471000551.25500C05 belt1821000551.25500C06 belt11821000451.25500C07 belt132100018.51.25500Tailing belt145650221.25100NO1 belt135650221.25100NO2 belt1126507.51.25100NO3 belt144650221.25100NO4 belt123650221.251002. Check before starting2.1 Check whether each connecting screw is fastened.2.2 Check oil quality and oil mass of each lubricating point. 2.3 Check whether cleaning, brake and tension device as well as belt breast board are intact, including whether the pull-cord switch, runaway limiting stopper and slipping detection device are intact and whether the operating switch is in interlocking start position.2.4 Check whether there is cracking or peeling phenomenon at belt cementing (joint). 2.5 Check the abrasion conditions of hopper and lining plate, and check whether there is blocking.2.6 Check whether the lower rollers of front (main) and tail drum and turnabout drum have adhered ore .2.7 Check the abrasion condition of the tripper and check whether each driving position has obstructions.2.8 Check whether the equipment safety protection device is complete.3. Post start-stop sequenceStart and stop shall be conducted in sequence in accordance with the process flow requirements4. Operation adjustment4.1 Check the variation of ore quality, and timely take measures to handle ore adhering, hopper blocking, drum adhering, etc.4.2 If any belt deviation, timely adjust with the measures as follows:4.2.1 Adjust the bias-adjustable roller. 4.2.2 Adjust the tension device. 4.2.3 When encountering fault that requires stop handling, immediately stop (or stop with pull-cord switch), including severe hopper blocking, block fixture, belt scratch or possible belt scratch risk, severe glue joint cracking, motor or driving position fault.4.2.4 Tripper shall be charged uniformly as required, and the discharge points shall be replaced frequently.4.2.5 Frequently check the current variation of operating belt conveyor; if any problem, timely report to the operation leader and inform the electrician to check.Section 5 Technical Regulations for Mineral Processing Magnetic Separator1. Performance parameters of magnetic separator equipmentWorking nameModel and specificationmmQuantitySetDrum revolution number r/minMagnetic induction intensity mTWorking clearance mmPowerkwMagnetic separatorPrimaryCTB-123021818045-6511SecondaryDPC-102442018045-657.5TripleNCTB-123041820045-6511QuarticDPC102422018045-657.5QuinticDPC-102422018045-657.52 Requirements before starting2.1 Check whether each part of the equipment is normal before starting.2.2 Anybody shall not stay near the equipment to be started before starting. 3 Starting sequence3.1 Open each water valvestart magnetic separatorstart feed.3.2 Cautions in starting process: conduct turning first and then start, and finally feed after the magnetic separator operates normally.4 Requirements in operation 4.1 Adjust the whiffling water quantity according to ore property (raw ore grade, silt content, magnetism rate, washability, etc.), feed quantity, feed concentration and grinding particle size, and maintain suitable pulp density in the tank.4.2 Feed quantity and feed concentration shall be stable and ore quantity shall be distributed uniformly along the drum.4.3 The distance (working clearance) from magnetic separator drum surface to tank bottom shall be suitable and should be 45mm65mm in general, and too large or too small distance shall be adjusted timely.4.4 The position of magnetic declination shall be suitable and 1020 in general.4.5 Each valve, ore discharge water pipe and blowhole shall be frequently maintained smooth; if any valve fault or water pipe and blowhole blocking, replacement or dredging must be conducted timely.4.6 The position and flushing angle of ore discharge water pipe shall be suitable; the water quantity shall not be too large, and the water quantity should be just unloading the concentrate from the drum.4.7 Frequently contact with grinding post; if any instable operation, ore property variation and coarse particle size, immediately report to the operation leader and inform the grinding post.4.8 In the operation process of magnetic separator, check and observe, at any time, whether the driving part and lubricating part of the equipment are in good condition.5 Stop sequence5.1 Stop feedingstop magnetic separatorshut down water valve.5.2 Cautions in stop process: the magnetic separator shall be stopped only after minerals are discharged completely.Section 6 Technical Regulations for High Frequency Vibrating Screen1. Performance parameters of high frequency screen equipment Working nameModel and specificationQuantity(set)Screen box layerScreen surface area(m2)Installation inclination()Total power(KW)One-stageD5F1014251.4X517.56.48Two-stageD5F1014251.4X517.56.482. Check before starting2.1 Check whether each bolt is fastened;2.2 Check grease and oil mass of each lubricating point;2.3 Check the abrasion condition of each pipeline valve and check whether there is blocking; 2.4 Check whether instrument and equipment safety device are complete; 2.5 Check the abrasion condition and compression condition of screen mesh, and check whether screen mesh is blocked;2.6 Check whether feed device and hopper have blocking phenomenon;3 StartingContact former and next procedure wellopen flush valvestart screenopen feed valve4 StopIts sequence is opposite to the starting sequence; 5 Operation adjustment5.1 Feed uniformly and maintain uniform distribution of screen surface materials;5.2 Check screen surface abrasion condition and timely handle if any coarse particle; 5.3 Feed device shall be free from blocking; 5.4 Timely handle various ore leakages; 6 Handling methods and procedures for emergency conditions6.1 Screen sheet is damaged severely: replace; 6.2 Small amplitude: electrician checks the coil, adjust the clearance and check whether damping device is damaged;6.3 Coil burning: replace coil;7 Methods and requirements for equipment cleaning and lubrication and for checking whether the equipment is normal7.1 Appliances for labor protection must be worn well as required before equipment cleaning, lubrication and check;7.2 Safety confirmation must be made well during equipment cleaning, lubrication and check;7.3 Check whether the whole work area has unsafe factors, and whether the equipment itself has potential safety hazard;7.4 Connect and contact the former and next procedure well before starting, and start only after confirmation without error;7.5 Various safety facilities, such as handrail and shield, must be intact and complete;7.6 In equipment operation, the operation position shall not be cleaned; 7.7 It is forbidden to open and close electrical switch by wet hands; 7.8 It is forbidden to wash electrical equipment with water;7.9 If any electricity leakage or fault for electrical equipment, timely report to the shop and inform electrician to handle;7.10 In operation, the screen surface shall not be hacked; 7.11 Frequently check the vibrating