Spiral Classifier Structure Description

First General Description

This kind of machine is the transmission mechanism ( left, right) spiral water tank, hoist, lower support, lubricator, ore dump valve, feed intake, etc. ( See the attached overview drawing for details) composed.

The water tank of the Gold Mining Equipment installed at an angle. The tilt angle is determined by the system configuration of devices in the process flow. The ( left, right) spirals driven by the transmission mechanism rotates in the water tank. The fine-grained mud in the water from the development bank inlet on one side and forms a sludge precipitation zone, the surface and volume depends on the value of the inclination angle of the water tank and the height of the overflow edge. The spirals with a low rotating speed play a certain role stirring. After stirring the porridge float light and fine particles on the surface and overflow from the overflow edge. Then they flow into the next operation of the mineral processing. The thick, heavy particles sink to the bottom of the water tank and rear sand which is transported from the spirals on the ore discharge for discharge mouth.

If ore grinding and classification are closed-loop operation, the discharge mouth of the ore discharge sand goes back to the mill for further grinding. Classifiers usually form a closed circuit together with a mill.

function diagram

First Transmission mechanism second Left Spiral, 3rd Right spiral 4th Lower support

5th Lifting device 6. water tank

4th Structure Description of main parts

(1 ) Transmission mechanism : Ф3000, Ф2400 andФ2000 classifiers consist of a motor, clutch, speed controller clutch cylinder and bevel gear whileФ1500 andФ1200 classifiers consist of a motor, belts, reduction gear and the spur gear pair. The transmission mechanism drives the rotation of the spiral.

(2 ) ( left, right) Spirals Spirals consist of hollow shaft spiral blade holder, iron liners, etc. The upper ends are in the cross shaft sleeve worn, while the lower ends of which are supported in the lower support. Hollow shafts with diameters over 500 mm with two semi-circular cross- welded steel plate, so that wave breaking can be due to poor weld quality by Querschweißvermieden. For hollow shafts with small diameters (eg 325mm ) seamless steel pipes are used. If the spirals rotate the spiral blades stir the broth slightly. The emitted light and fine particles from the overflow weir, while the thick, heavy particles promoted the ore discharge support for relief. Anti- wear life of the lining of iron is very important. It needs further study.

(3 ) Low - Support: How long works the lower support is immersed in the mud, his poetry is very important. The sealing of the lower support directly on the bearing life. In design, it is the multi-layer cotton -clack valve - type packaging and high-pressure Fettdoppeldichtungsstrukturund is equipped with hand pumps dry on the lubricator. It can fill grease into the interior of the bearing on a regular basis in order to maintain its sealing properties.

(4) Water tank: water tank is welded by steel rods and all kinds of profile steel. Due to the difficulties in transportation, water tanks ofФ3000, Ф2400 andФ2000 classifiers are combined in the rule and welded in the workplace. The water tank will have to bear the weight of the machine itself and any load. Therefore, the design of the foundation that the water tank is very important (the structure should be reasonable and the Foundation are hard). To avoid the water tank is deformed by improper support and thus affect the operation of the machine is the diagram of the foundation structure for this machine that can serve as a benchmark for foundation design is appropriate.

( 5) lubricating device : In order to improve the lubrication conditions of machines and better lubrication and sealing property of the lower bearings, lubrication methods of manual lubrication centralization is assumed forФ3000, Ф2400 andФ2000 classifiers. It is equipped with dry hand pumps and valve work and on the insides of all the camps to infuse fat on a regular basis. Some users may decide according to certain operating conditions when the Schmiersteuerkonsolean the left wall and the right wall installed. Or it can be used elsewhere. The lubrication method of manual lubrication forФ1200 andФ1500 classifier adopted.

(6 ) Drain valve : drain valve at the bottom of the water tank installed so that manure be drained from the water tank if necessary. During normal operation of the valve can be shut off.

(7 ) Lifting device : The lifting device consists of an engine -, wheel reducer, bevel gear, threaded nuts, and other parts. If the classifier works more lifting device with a target for the prevention of the solid in the slurry by precipitation and pressing the coils, so that damage to machine parts and is installed in order to facilitate repair. If the classifier works more spirals must be lifted out of the water tank in order to get the most of the spirals of the slurry. For the safety of the lifting process end of stroke switch is installed so that the lifting movement can be controlled automatically. See Figure 2 for wiring diagram.

Further electrical schematic diagrams designed to Spiral classifier rotation and lifting control linkage (FIG. 6). If the classifier does more, with the commissioning of the lifting device, the spirals can be automatically raised to a certain height. If the classifier works, the spirals may automatically to the working position during the rotation of the lifting device to hold the hollow front broken by overload are lowered. Whether to assemble electrical control device shall be determined by the user according to the actual conditions. The manufacturer does not provide parts and components required by this electric installation.

Figure 2: Schematic representation of the electric lifting Journey control of the lifting device

RD - fuse TA - Stop light

SC - Contactor for lifting SXK - Lifting tours

JC - Contactor for lowering JXL - Lowering tours

JA - Lowering Home