Jigging. Baum Jig and Variable-Wave Jig

Transcription

1 Jigging Baum Jig and Variable-Wave Jig

2 Jigging stratification Stream The particle of low specific gravity The particle of high specific gravity

3 PRINCIPLE OF JIG 1 Water level 2 Coal 3 Screen plate 4 Piston

4 Air pulsator Jig Concentration Air valve Discharge device Baum Jig Takabu Jig Batac Jig Piston valve Rotary valve Flat valve Slide gate, Rotation gate, Swan cock Star foil

5 Difference of Concentration Baum Jig BATAC Jig(Fane size) Compress air Air room Front chart Swan cock Extraction air room Raw Coal Vibrating feeder Floor side Gate board Side chart Refer to another chart. Refuse controller Supplying coal Air adjustment device Air exhaust pipe Middling Clean Coal Air supply pipe Air room Water supply Screen Float Refuse Water pipe Bucket Elevator Refuse

6 Advantage of Jig The processing performance is high for space required for installation. The range of the application particle size is wide. Simple structure. Low-cost

7 Disadvantage of Jig Strict separation accuracy cannot be expected. Volumes of water are used. (water processing cost)

8 De Slime Screen for raw coal

9 Magnet catcher

10 Primary Baum Jig

11 Baum Jig Compress air Air room Front chart Swan cock Extraction air room Vibration feeder Floor side Gate board Raw Coal Side chart Refer to another chart Water supply Screen Float Bucket Elevator Refuse

12 Restrictor of Jig Process of stratification Amount of supply coal and water supply, Blast volume and Pulse frequency Discharge refuse Process Specific gravity float, Slide gate, Rotary gate, Swan cock and Star wheel

13 Factor related to concentration accuracy Row Coal Washing water Amount of coal Supply Air Pulse frequency Rejection refuse Process Specific gravity distribution, Grain degree and Shape Specific gravity and Pulverized coal density Area of screen Air pressure and air volume Wave height and Progress speed Accuracy of sensor and Response

14 Coal supply Supplying coal equally to the feeder Hardening is not and has gotten untied. (It influences the concentration accuracy somewhat of the amount of coal supply. ) Excessive supply High bed Movement speed down accuracy down Underestimated supply Low bed Stratification depression accuracy decrease

15 Coal feeder(vibrating feeder) )

16 Feeder control panel

17 Water supply When the amount of water supply is large stream is fast The minute grain selection is defective. (The surface flow velocity grows. ) When the amount of the water supply is a little stream is late Decentralization is defective. The washing is difficult

18 Water Pump for Jig

19 Head Tank Supply pipe Overflow pipe Supply water to jig

20 Adjusting valve Flow meter Water pipe

21 Difference of air valve Piston valve Rotary valve Flat valve

22 Low Pressure Blower

23 High Pressure Blower

24 ブロワー写真 Conpressor

25 Air amount meter

26 Pulse frequency Progress speed of bed Upper layer of bed The progress speed is fast, and the pulse frequency that the particle receives is a little. Lower layer of bed The pulse frequency that the particle receives is abundant. slow the progress speed

27 Difficulty degree of washing ±0.1Weight within the range of specific gravity(%) 0~7 7~10 10~15 15~20 20~25 Washing degree Easiness Little difficult Difficulty Extremely difficult. Specially extremely difficult 25 以上 Possible to hardly select it

28 Subsidence of particle Natural subsidence Compulsion subsidence Hindered settling

29 Rejection refuse mechanism Sensor Float Rejection refuse opening Slide gate Rejection refuse mechanism Rotation gate and Swan cock Star foil

30 Height measurement Supersonic wave transmitter Automatic rejection refuse device Height of bed h1 Coupling rod Exhaust back pressure Swan cock Guide roller Rejection refuse air room Weir for overflow Float Floor Screen Height of bed h1 Slide gate 3rd Vessel 4th Vessel Shelf for rejection refuse Rotation gate

31 The measurement of Float Specific Gravity a Float Volume 4238 CC Float close up e Reflector b Float Weight 1,855 g c Coupling rod Attachment lug 266 g d Coupling rod 1,869 g J Weight for adjustment f Reflector Attachment lug e Reflector 154 g f Reflector Attachment lug 403 g g Sand Weight in the Float 1,154 g d Coupling rod h Weight Sub total(b+c+d+e+f+g) 5,721 g i Specific Gravity(h a) 1.35 J Weight for adjustment 551 g k Weight Total(h+k) 6272 g C Coupling rod Attachment lug l Specific Gravity for operation (k a) 1.48 b Float Screw Cap Screw Cap a / g

32 Slide gate Rotation gate

33 Rotation gate

34 Motor Swan cock

35 Bucket elevator Measuring the volume in the bucket

36 Vari-wave Jig (Variable-Wave Jig) The shape of waves and the pulse frequency can be easily set. Improvement of selection accuracy Stability of bed An increase in amount of processing

37 Baum Jig and Variable-Wave Jig Compress air 給水管 Air room High-pressure Swan cock Rejection refuse air room Gate Screen Float Low-pressure Air room Exhaust Silencer Trestle Wave high sensor Gate Scree Rejection refuse device

38 Variable-Wave Jig HIGH PRESSURE AIR FRONT LOW PRESSURE AIR SIDE EXHAUST AIR CHAMBERS SILENCER FRAME WAVE HEIGHT SENSOR SLIDE GATE SCREEN DISCHARGE DEVICES COAL CLEAN COAL BUCKET ELEVATOR REFUSE MIDDLING

39 Difference Rejection refuse device Height measurement Automatic rejection refuse device Supersonic wave transmitter Refuse level transmitter (float) Automatic rejection refuse device Height of bed h1 Exhaust back pressure Swan cock Guide roller Magnetostriction sensor Controller Coupling rod Guide Roller Rejection refuse air room Refuse level transmitter The upper surface of water tank Magnet Automatic rejection refuse device Float Weir for overflow 300mmLevel 100mmLevel Floor Screen Height of bed h1 3rd Vessel Slide gate 4th Vessel Shelf for rejection refuse Rotation gate Flore screen Float Slide gate Star foil Slide gate, rotation gate, and Swan cock Star foil

40 Externals of Variable-wave jig

41 Refuse level transmitter (float) Automatic rejection refuse device Magnetostriction sensor Guide roller Controller Refuse level transmitter Automatic rejection refuse device The upper surface of water tank Magnet 300mmLevel 100mmLevel Flore screen Float Star Wheel Slide gate

42 Cycle time port line chart (insertion and comparison at exhaust cycle between jig and Vari-Bali wave jig in the past) Wavy pattern 1 in the past(palsation 44.7rpm/min) Low-pressure exhaust 1.34 Low-pressure exhaust High-pressure Insertion High-pressure Insertion standby 0.23 High-pressure Insertion Variabul-wave form pattern 5 (Palsation 40.0rpm/min) High-pressure 0.73 exhaust High-pressure exhaust High-pressure exhaust standby Low-pressure Insertion Low-pressure Insertion Low-pressure Insertion standby 0.73 Low-pressure exhaust Low-pressure exhaust Low-pressure exhaus standbyt

43 FLAT VALVE

44 FLAT VALVE

45 Height of wave sensor

46 Wavy comparison Wavy comparison between existing jig and Vari-wave jig (Cm) 10 0 Existing jig (sine wave type) 5 10 (Sec) (Cm) Vari-wave jig (trapezoid wave type) エ 5 10 (Sec) -10

47 Actual wavy graph No1 tank air room side No1 tank operation room side No2 tank air room side No2 tank operation room side

48 Control board of variable wave jig Height of refuse bed Touch panel Wave monitor

49 Dewater Screen

50 Magnet Catcher

51 Fime Coal 62Fun 40Fun