gravity separator is to make separations of useful minerals from gangues by use of the different particles subject to gravity, hydraulic pressure and friction in the multi-force field through dynamic centrifugal flowing membrane of slurry produced on the inclined surface of spiral based on the differences of useful mineral and gangue in specific gravity, particle size and shape. Water in the spiral chute runs downward spiral movement and also flows in circulation transversely. Water in the upper layer run fast, generating centrifugal force with large inertia to toss toward the outer edge of the chute. Back-flow of water in the lower layer adjacent to the chute bootom runs slowly with small centrifugal force and flows from the outer edge to the inner edge with the action of gravity, generating secondary back-flow. Particles of heavy minerals in slurry settle rapidly and gradually moves toward the inner edge along the converged helix prior to finally being produced as concentrate. Light minerals settle slowly and flow fast in the surface layer of ore flow with large centrifugal force and gradually move toward the outer edge along the expanding helix before finally being produced as tailings.Jiangxi province mine machinery factory vacuum and pressure gravity separators have a reputation of being the most accurate and efficient separators available. Our six years of experience incorporate the most current design features with the three essential elements of a separation system - air flow, speed of vibration, and the deck's differential action. The vacuum system distributes the product eliminating dust, light foreign matter and contaminants. Our separators feature heavy-duty steel construction, centralized lubrication, and simplified/accurate crank controls. Additional options and modifications are available to meet stringent needs and demands of the products and processing industry. The many design features of the Jiangxi province mine machinery factory vacuum and pressure gravity separators provide the highest degree of operation control to insure the best possible product separation.buy gravity separator spiral separation
buy gravity separator spiral separation
March 07, 2012 at 1:25 AM in Arts & Culture by Blog about Shakingtable
Coarse jaw crusher
February 21, 2012 at 10:27 PM in Business & Finance by Blog about Shakingtable
Coarse jaw crusher is widely used in mining, metallurgical industry, building material, highway, railway, water conservancy and chemical industries. Various materials with compressive resistance less than 350 Mpa can be crushed.?ModelInlet sizeFeed sizeOutput sizeCapacityPowerWeightmmmmmmm3/hkwtPE150x250150x25013030-10037.51.5PE250x400250x40021040-1007.518.53PE400x600400x60034040-10034307PE500x750500x75042550-100525515PE600x900600x90050065-160755521PE750x1060750x106063080-14013011033PE900x1200900x120075095-16516411055PE1200x15001200x15001020150-300500160100.9PEX100x600100x600801597.55Jaw crusherPEX150x500150x500120306132.5PEX150x750150x75012018-4816153.5PEX200x1000200x100016020-5523.8226.5PEX250x750250x75021025-6022224.9PEX250x1000250x100021025-6032306.5PEX250x1200250x120021025-6038377.7PEX350x750350x75025035-6045379.21PEX300x1300300x130025020-90657511 Sawtooth wave jig
February 21, 2012 at 10:26 PM in Business & Finance by Blog about Shakingtable
JT sawtooth wave jig is a new type of jigs. It is one of the types of modern gravity separation equipment. New it has formed series whose use is expanded. Such type of jig uses electromagnetic stepless speed regulation which features even rotation, smooth ore current, strong adaptability to selected materials, good separation effects of medium and fine grains, and water saving. Since such jigs have large handling capacity and wide range of sorting particle sizes as well as are easy for operation and maintenance, they are mainly used to sort alluvial gold, tungsten ores, tin ores, hematite, and beach placer.Traditional jigs mostly adopt circumferential off-center drive. Their jigging pulsation curves are mostly sine waves. The ascending and descending water flow velocity and action time produced by septal movement are basically the same. These hinder the loosening of jig beds and layering of ore grain according to gravity. Therefore, the sorting ratio and recovery rate of equipment are affected.Sawtooth wave jigs are a kind of energy-saving gravity equipment development and improved on the basis of traditional jigs according to the theoretic layering law of jig beds. Their jigging pulsation curves take the shape of sawtooth waveform which gets the ascending water to travel more rapidly than the descending water. The ascending time is short while the descending time is long. The problem that the ascending and descending water flow and action time produced by sine wave and pulsation wave are the same is solved. The looseness of the bed is strengthened and suction function is alleviated so that the heavy ore grains in the minerals are able to precipitate fully and the sorting ratio ability and recovery rate of equipment are largely improved. Compared with sine wave jigs through industrial tests, the recovery rate of sawtooth wave jigs are higher than that of sine wave jigs respectively in Sn:3.01%, W:5.5%, Pb:1.63%, and Zn:2.04%. The water consumption is reduced by 30%to 40%. The area of flooring area is reduced by one-third and the stroke can be adjusted. Since electromagnetism governing-speed motors are adopted for dragging to enable the jig frequency to be steplessly regulated and their parameters reached advanced domestic level, such jigs are one of the ideal types of energy saving gravity separation equipment.1. Box? 2. Level? 3.6 Bearing 7206? 4.7.8 Adjustment gland? 5. Gear shaft? 9. Bearing 313? 10. Bearing 8112? 11. Crank shaft? 12.15.23.27 Nut? 13. Dust cover? 14. Drill drift? 16. Cam? 17. Drill drift seat? 18. Shaft? 19. Joint bearing inner ring? 20. Joint bearing outer ring? 21. Shaft sleeve? 22. Shaft? 24. Gear? 25. Bearing 2216? 26. Adjustment angle? 28. Shaft? 29. Bearing 7207? 30. Bearing cover (roller)? 31. Back cover plate? 32. Adjusting screwIV. Equipment InstallationFor the jigs, the bottom surface of the frame must be installed horizontally to ensure the gradient of the screen in the tank is within the design scope.ModelArea jigStrokeStrokeFeed sizeHutch waterPressute waterCapacityPowerOverrall dimensionsWeightm2mmr/minmmt/hkg/cm2t/hkwmmtJT0.57-10.578.5-12 (M12)
10-17 (M17)60-160<6</p>1-2>=0.31-2.51.51560x820
x15500.612JT1-11.04<10</p>2-34-102.21322x1190
x19150.9JT2-22.288.5-12 (M12)
10-17 (M17)60-160<10</p>2-4>=0.38-1533225x1550
x21501.637JT3-13.310-4780-110<20</p>3-6>=0.110-155.52662x2000
x30303.26JT4-247-3050-125<10</p>4-8>=0.18-167.54240x1990
x57504.6JT4-2A47-3050-125<10</p>4-8>=0.18-164 ??4240x1990
x27504.6JT5-24.8615-2580-120<10</p>4-10>=0.110-207.53940x2006
x25804.8Note: With the amount of recharge capacity and size to the ore, ore properties and operating conditions vary.
10-17 (M17)60-160<6</p>1-2>=0.31-2.51.51560x820
x15500.612JT1-11.04<10</p>2-34-102.21322x1190
x19150.9JT2-22.288.5-12 (M12)
10-17 (M17)60-160<10</p>2-4>=0.38-1533225x1550
x21501.637JT3-13.310-4780-110<20</p>3-6>=0.110-155.52662x2000
x30303.26JT4-247-3050-125<10</p>4-8>=0.18-167.54240x1990
x57504.6JT4-2A47-3050-125<10</p>4-8>=0.18-164 ??4240x1990
x27504.6JT5-24.8615-2580-120<10</p>4-10>=0.110-207.53940x2006
x25804.8Note: With the amount of recharge capacity and size to the ore, ore properties and operating conditions vary.
Vibrating Screen
February 21, 2012 at 10:25 PM in Celebrity by Blog about Shakingtable
1.UseYA Drum Vibrating Screen is primarily applied in coal, metallurgical, power generation, building material, water conservancy, light and chemical industries and other industries and a highly efficient screening machine to classify coal, ore, coke and other bulk materials.?2.Working Philosophy and Structural Property?The screen is operated by electric motor to drive vibrator with eccentric mass via delta belt, allowing screen box to vibrate, with the motional orbit of the screen box being circular.The screen is composed of screen box, vibrator, spring damping device, supporting underframe and others, as shown in Fig.1. The screen box uses the advanced ring groove rivet for connection and is of frame structure.The vibrator adopts eccentric shaft and eccentric block and the spring damping device uses steel spiral spring.Standard?ModelLayer?MaxParticlesize
(mm)Sieve?size
(mm)(mm)Productive?capacity
(t/h)Frequency
(shift/mm)(?)AngleCooperate?MotorDimension
L*W*HWeight
(kg)Model(W)PowerSZZ600x12001401-25610-20100015-25Y112L1-42.21370x890x330340SZZ2600x12002401-25610-20100015-25Y112L1-42.21370x890x430360SZZ900x18001401-25620-25100015-25Y112L1-42.22150x1358x575550SZZ2900x18002401-25620-30100015-25Y112L2-432489x1358x770620SZZ1250x250011005-402-715085015-20Y1321S1-45.52762x1714x6801100SZZ21250x250021505-402-715085015-20Y1321S1-45.52702x1714x7401300SZZ1500x300011001-40822080015-25Y132M1-47.53320x1449x7872100
(mm)Sieve?size
(mm)(mm)Productive?capacity
(t/h)Frequency
(shift/mm)(?)AngleCooperate?MotorDimension
L*W*HWeight
(kg)Model(W)PowerSZZ600x12001401-25610-20100015-25Y112L1-42.21370x890x330340SZZ2600x12002401-25610-20100015-25Y112L1-42.21370x890x430360SZZ900x18001401-25620-25100015-25Y112L1-42.22150x1358x575550SZZ2900x18002401-25620-30100015-25Y112L2-432489x1358x770620SZZ1250x250011005-402-715085015-20Y1321S1-45.52762x1714x6801100SZZ21250x250021505-402-715085015-20Y1321S1-45.52702x1714x7401300SZZ1500x300011001-40822080015-25Y132M1-47.53320x1449x7872100
Spiral classifier
February 21, 2012 at 10:25 PM in Business & Finance by Blog about Shakingtable
This classfiers suitable for dewatering,medium,drainaging amd spraying in ore clressing for medium and fine naterial wet and dry classifying in mine.Such machine is mainly used in the production flow of metal processing. According to the difference in sedimentation rate of mineral particles and mud, the particle sizes of ores with 14-325 meshes are classified. Waste mud or water for ore sand can be separated from the ores.Such machines are divided into single spiral classifiers and double spiral classifiers. Beside, they are also divided into high weir spiral classifiers and submerged spiral classifiers. If the overflow edge is higher than the center line of spiral shaft and lower than the external diameter of spiral at the overflow end, the spiral classifiers are high weir ones. If the overflow edge is higher than the center line of spiral shaft and also higher than the external diameter of spiral at the overflow end, the spiral classifiers are submerged ones. High weir classifiers are usually used for the classification with particle size of below 100 meshes. Submerged classifiers are usually used for the classification with particle size of below 200 meshes.3.Technology parametersModelSpiral Dia.Spiral SpeedOutputMotor PowerWeightCirculating LoadOverflow QuantityLift LowerDrivemmr/mint/24ht/24hkwkwtHigh-weir single spiral classifierFG-3?3008.3-2.230-8010-302.21.10.67FG-5?5008.5-15.5143-261322.21.11.6FG-7?7504.5-9.9256-564652.232.83FG-10?10003.5-7.6473-1026852.25.54FG-12?12005?6?71170-16001552.25.58.54FG-15?15002.5?4?61140-27402352.27.511.68FG-20?20003.6?5.53890-5940400311?1520.45FG-24?24003.64680058031525.65FG-30?30003.21165089342240.9High-weir double spirals classifier2FG-12?12005?6?72340-32003102.2x25.5x215.842FG-15?15002.5?4?62280-54804702.2x27.5x221.112FG-20?20003.6?5.457780-118808003x222?3036.342FG-24?24003.671360011603x23053.492FG-30?30003.22330017854x24073.03Submerged single spiral classifierFC-12?12002.5?4?61170-16301202.27.511.1FC-15?15002.5?4?61140-27401852.27.515.32FC-20?20003.6?5.53890-5940320311?1529.056FC-24?24003.646800455418.537.267FC-30?30003.21165070542246.2Submerged double spiral classifier2FC-12?12003.8?61770-28002402.2x27.5x219.612FC-15?15002.5?4?62280-54803702.2x27.5x227.452FC-20?20003.6?5.57780-118806403x222;30502FC-24?24003.67137009103x23053.4912FC-24?24003.67137009104x23765.2832FC-30?30003.22330014104x24584.87Note: (1) In the table, C represents submerged type, G represents high weir type, 2F represents double spiral type, and F represents single spiral type. (2) The production capacity in the table is figured out based on empirical formula according to factors such as overflow particle size, revolution speed of screw and screw diameter in ore ratio.IV. Structure Description1. General DescriptionThis kind of machine is composed of transmission mechanism, (left, right) spiral water tank, lifting device, lower support, lubricating device, ore discharge valve, feed inlet, etc (See the attached general drawing for details).The water tank of this machine is installed obliquely. The angle of inclination is determined according to equipment configuration of equipment in the process flow. The (left, right) spirals driven by the transmission mechanism rotates in the water tank. The finely grained slurry enters the water bank from the feed inlet at one side and forms one slurry precipitation zone, whose surface area and volume depends on the value of the water tank's inclination angle and the height of overflow edge. The spirals rotating at a low speed play a certain stirring role. After the slurry is stirred, the light and fine particles float above the surface and overflow from the overflow edge. Then they flow into the next working procedure of ore dressing. The heavy and thick particles sink into the bottom of the water tank and become return sand which is transported by the spirals to the ore discharge mouth for discharge.If ore grinding and classification are closed loop operation, the return sand discharged from the ore discharge mouth still goes into the mill for further grinding. Classifiers normally form closed loop operation together with mill.Function Diagram1. Transmission mechanism? 2. Left spiral? 3. Right spiral? 4. Lower support?5. Lifting Device? 6. Water tank4. Structure Description of Main Parts?(1) Transmission mechanism: ?3000, ?2400 and?2000 classifiers consist of motor, coupling, speed reducer coupling cylinder and bevel gear pair while?1500 and?1200 classifiers consist of motor, V-belt, and speed reducer cylinder gear pair. The transmission mechanism drives the rotation of spiral.(2) (Left, right) spirals: Spirals consist of hollow shaft, bracket, spiral vane, iron liner, etc. The upper ends are supported in the cross-shaft sleeves while the lower ends are supported in the lower support. Hollow shafts whose diameter is over 500mm are welded with two semicircular long steel plates so that shaft fracture due to poor welding quality caused by transverse weld can be avoided. For hollow shafts with small diameters (such as 325mm), seamless steel pipes are used. When the spirals are rotating, the spiral vanes stir the slurry slightly. The light and fine particles are discharged from the overflow weir while the heavy and thick particles are conveyed to the ore discharge mount for discharge. Anti-wear life of iron liner is very important. It needs further study.(3) Lower support: As lower support long operates submerged in the slurry, its sealing is very important. The sealing of lower support directly affect the service life of bearings. In design, it is of the multilayer cotton yarn valve-clack type packing and high-pressure grease double seal structure, and is equipped with manual dry pumps on the lubricating device. It can fill grease to the inside of bearings on a regular basis to maintain its sealing property.(4) Water tank: Water tank is welded through steel poles and all kinds of profile steel. Due to difficulty in transportation, the water tanks of?3000, ?2400 and?2000 classifiers are generally assembled and welded at the workplace. The water tank shall bear the weight of the machine itself and all load. Therefore, the design of foundation supporting the water tank is very important (the structure should be reasonable and the foundation shall be firm). To avoid the water tank becomes deformed due to improper supporting and thus affect the operation of machine, the diagram of foundation structure is attached for this machine which can serve as the reference basis for foundation design.(5) Lubricating device: To improve the lubricating conditions of machines and better the lubricating and sealing property of lower support bearings, the lubrication method of manual centralization lubrication is adopted for?3000, ?2400 and?2000 classifiers. It is equipped with manual dry pumps and operating valve and can infuse grease to the insides of all bearings on a regular basis. Some users can decide if the lubricating control console is installed along the left wall or right wall according to specific operating conditions. Or it can be installed otherwise. The lubrication method of manual lubrication is adopted for?1200 and?1500 classifiers.(6) Drain valve: Drain valve is installed at the lower of the water tank so that slurry can be discharged from the water tank when necessary. During normal operation, the valve can be shut off.(7) Lifting device: The lifting device consist of motor, wheel reducer, bevel gear pair, nut with thread, and other parts. When the classifier stops working, lifting device is installed with an aim to preventing the solid in the slurry from precipitating and pressing the spirals so as to damage machine parts as well as facilitating repair work. When the classifier stops working, the spirals must be lifted from the water tank to get most of the spirals away from the slurry. For the safety of lifting operation, stroke end switch is installed so that the lifting journey can be controlled automatically. See Figure 2 for Electrical Schematic Diagram.Besides, electrical schematic diagrams for spiral classifier rotation and lifting linkage control are designed (Figure 6). When the classifier stops working, with the startup of lifting device the spirals can automatically be lifted to a certain height. When the classifier is working, the spirals can be automatically lowered to the working position during the rotation of lifting device to keep the hollow from being fractured due to overload. Whether to install linkage control electric device shall be determined by the user according to actual conditions. The manufacturer does not provide parts and components required by this electric installation.Figure 2: Electrical Schematic Diagram of Lifting Journey Control of Lifting DeviceRD - Fuse? TA - Stop lightSC - Contactor for lifting? SXK - Lifting journey switchJC - Contactor for lowering? JXL - Lowering journey switchJA - Lowering startup