The technology of operating jigging machine is a comprehensive measure to comprehensively use the basic knowledge mentioned above. Operators must have basic understanding and judgment on the operation of jigging machine and raw coal washing. On the basis of understanding and judgment, it is necessary to have a general goal and the measures to be taken to achieve it.
Jig Operators should be clear and understand, what kind of product indicators to achieve satisfactory indicators. Under this general goal, the factors that affect the coal preparation effect but can not be adjusted at any time should be clearly understood and adjusted to a good level. Such as sieve plate angle, hole size, jigging cycle, frequency (most jigs may be adjusted at any time, but not at any time and frequently), wind pressure, water pressure, discharge bucket size and adaptability to raw coal discharge capacity, overflow weir height of each section, structure and sensitivity of discharge device should be basically understood and selected.
It should be clear that there are only four factors that need to be operated and adjusted at any time, such as feed rate, water volume, air volume and discharge volume (realized by buoy density). Moreover, the operation of jigging machine should be stable. Once the factors are properly selected, they should be as stable as possible, so as to achieve the best separation effect. It is not enough to use the method of frequently exploring bed bed bed and adjusting Fengshui frequently, because it will make the separation conditions change frequently, and the separation process conditions are unstable, so it is difficult to obtain good separation effect.
Among the four factors that can be adjusted at any time, the individual material quantity is easier to select and stabilize. Therefore, in fact, the operation of the jig mainly adjusts the air, water and separation density, and the separation effect will be guaranteed.
These three factors can be subdivided into two groups and two processes. The air and water ratio is adjusted as a group. The purpose and goal of adjusting the air water ratio are that the bed layer is properly loose and the stratification is clear. The second group is to adjust the sorting density. The goal of adjustment is to adjust the discharge amount properly and to cut accurately. This problem will vary with the structure of the discharge device. How to adjust and control depends on the level of operation technology.
In order to obtain a good separation result, the two processes must have both. Moreover, it should be realized that the separation is not clear, no matter how accurate the segmentation is, it can not get a good separation effect. Therefore, proper adjustment of air and water ratio and unclear stratification are the core of jig operation technology, and efforts should be made.