Decanter centrifuge is an efficient separation equipment, which is mainly used for sludge separation and wastewater treatment in steel rolling mills, coal washing and beneficiation, papermaking and leather making. Different processing objects must have different requirements for machine performance parameters, so the equipment is required to be adaptively adjusted.
In the case of the same speed of the centrifuge, the material can obtain a larger separation factor, and the separation effect is naturally better; the diameter increases, and the allowable speed will decrease with the decrease of the material robustness, because it is limited by the strength of the material. The diameter of the drum of the decanter centrifuge can only be as large as possible and cannot be increased indefinitely.
Distance and propeller impeller separation processing in the case of the same amount of processing drum length to diameter ratio generally have two options, general large drum diameter centrifuge at a lower differential speed, small drum length to diameter ratio must be increased differential speed to improve efficiency. To ensure the clarification effect, of course, the larger the half cone angle of the drum, the better. Starting from the slag transportation and dehydration effect in separation processing, the cone angle can be designed as small as possible.
Decanter centrifuge has been widely used in starch, pharmaceutical factory, pharmaceutical industry, chemical plant, sewage treatment and other industries for a long time. How to debug the horizontal screw centrifuge? The steps are as follows:
(1) Debugging phase
The purpose of the debugging phase is to find errors in the ant colony algorithm and thinking logic, to ensure that the thinking logic of the system is appropriate in all stable or specific situations, and to compare and select different design schemes.
(2) Software and hardware linkage phase
The purpose of the software and hardware linkage phase is to check whether all automatic control systems (including software and system configuration) can work stably under the basic specifications, and basically debug external equipment and jacks such as temperature sensors, electric actuators and input and output safety outlets.
(3) Field commissioning phase
The key purpose is to check the reliability and adaptability of the system under the specific specifications on site and find the appropriate basic parameters. During the whole debugging process, common faults are often inevitable. The whole process of common fault inspection is the whole process of considering common fault conditions, conducting detailed analysis, and slowly discovering common faults. For a simple system, it is not difficult to find common faults quickly and safely.
The future development trend of decanter centrifuges will be to strengthen separation performance, develop large-scale decanter centrifuges, improve slag unloading mechanism, increase special and combined drum centrifuges, strengthen separation theory research and study the optimal control technology of centrifugal separation process, etc. It should be selected according to the size and concentration of solid particles in the suspension, the difference in solid-liquid density, the viscosity of the liquid, the nature of the filter residue, and the separation requirements to meet the requirements of the moisture content of the filter residue and the transparency of the filtrate. Which product is initially selected.