The basic structure of this type of jig is shown in the figure below. The lower cone diaphragm jig is composed of two jigging chambers, and the movable diaphragm is located below the jigging chamber and is a movable inverted cone. The movable cone alternately reciprocates up and down to generate a rising and falling water flow in the jigging chamber. Technical characteristics of the lower cone diaphragm jig Screen size (mm) Number of jigging rooms Sieve total effective area Maximum feed size (mm) Processing capacity (ton / Taiwan · hour) Stroke (mm) Punch times (times / minutes) Water consumption under the sieve (L / sec) Sieve water pressure (Pa) Motor power (kW) Dimensions (mm) long width high 1 000×1000 2 1.8 12 5~9 2~20 250~350 6 ( 0.6~2 )× 10 5 3.2 2574 1308 1730 The above table shows the technical characteristics of the lower cone diaphragm jig.
Features:
1. Using high-performance servo motor to yarn guide, make the linear velocity reach over 800m/min, even reach 1200m/min, production efficiency will multiplied and reduce cost.
2. All-round intelligent control technology instead of mechanical structure, let machine performance reach the international advanced level, it's easy and convenient for operation.
3. Intelligent tension device, active unwinding device, automatic tracking overfeeding system, assure stabilization of shaping.
4. Yarn breaking device and length count device, use encoder to detect and control speed, promise the yarn produce consistency.
5. Using brushless motor driving, adjusting forming length and trimming angle intelligently, soft edge density is controllable, ensure yarn forming density uniformity.
6. Intelligent control and adjustable spandex draft ratio, ensure the yarn quality and easy operation.
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The heavy product is intermittently discharged by the valve at the bottom of the movable cone.
Compared with the upper diaphragm jig, the advantages of the lower cone diaphragm jig are:
(1) Large size and large production capacity;
(2) Compact structure, small footprint of unit effective screen surface;
(3) It can ensure that the rising water flow is more evenly distributed throughout the sieve plate;
(4) The discharge is smooth because the heavy mineral discharge opening is placed on the bottom of the movable cone. This type of jig has many disadvantages, mainly because the agitating diaphragm installed in the lower part has to bear the weight of ore and water in the body, so the rubber diaphragm is easy to be broken, the bracket is broken, and the maintenance and repair is troublesome; in addition, the stroke cannot be adjusted too much. Large, the effect of handling coarse materials is poor. Generally only suitable for processing medium and fine grain grade materials.