There are a lot of input and output variables in the powder production system of the ball mill.If design the whole controls system as the whole and control in a multivariable way, the whole design process and the control algorithm will be very difficult.For this reason, we will have to divide it into several relatively independent subsystems according to its specific features.First of all, by analyzing the dynamical property of the ball mill, the warm and cold blast rate has prominent influences on the entrance negative pressure and exit temperature, so that we can treat this process as a 2x2 multivariable object, and the two input quantity are hot wind control valve aperture and cold wind control valve aperture, and the two output variables are entrance negative pressure and exit temperature.In allusion to the multivariable object our company designs a multivariable fuzzy control system.In addition, because the load of the ball mill is a relatively independent system, the biggest problem of this system is the regulated variable cannot be precisely predicted so that the closed-loop control system cannot work normally.Directing at this feature, we put up with a optimum self-adaption open-loop control method based on the principle of minimizing the electricity consumption so that we can avoid the measurement of the workload of the grinder, thus making sure the whole powder manufacturing system can work in a energy-saving state.As a professional grinding crushing machine such as rotary kiln manufacturing company, i believe you can always trust us in providing you with the excellent products and the best services.
Generally, the newly installed ball mill has a running-in process.During the running-in process, the amount of steel balls is added for the first time, which accounts for 80% of the maximum ball load of the ball mill.Steel ball sizes are 120, 100, 80, 60, 40.
Recently, a customer asked us can the ball mill grind the material to 325 mesh? the answer to this question is no, but there is a grinding mill that is fully compliant with the requirement to grind the material to 325 mesh, it is the rod mill.
Hongxing machinery's sound source analysis on the energy-saving ball mill units indicates that the large tank tube is main source of noise and gears, bearing and the transmission device and electric motor are minor sources of noise relatively.Considering the acoustical power, the large tank tube is main device for its radiant acoustical power and other parts produce lower acoustical power.The balance can be different in a level.
The production capacity of the large-scale ball mill in the concentrator is a crucial factor affecting the subsequent separation and the economic benefits of the operation.The main aim of this study is to improve the processing capacity of the large-scale ball mill.Taking a 5.498.83m ball mill as the research object, the reason for the low processing capacity of the ball mill was explored via process mineralogy, physicochemical analysis, workshop process investigation, and the power consumption method.Based on this framework, a series of laboratory grinding optimization tests were conducted and verified via industrial tests.The results show that the ore primarily contained hematite and magnetite, the disseminated particle size of magnetite was primarily a coarse-grained inlay that was easy to separate from gangue, while the disseminated particle size of hematite was primarily an uneven and medium-sized inlay, which increased the grinding difficulty.Under optimum conditions of +6.0mm material suitable for a 100mm ball diameter, 6.0+2.0mm material suitable for an 80mm ball diameter, 2.0mm material suitable for a 70mm ball diameter; medium ratio of 90 mm 34.62%, 70 mm 26.92%, 60 mm 23.08%, 40 mm 15.38%; filling ratio of 32%; material ball ratio of 1.0; rotation speed rate of 80%; and grinding concentration of 78%, the 0.074mm content in the grinding product increased from 55.10% to 58.86% and the processing capacity of the ball mill increased from 310 to 320t/h to 350t/h.Scanning electron microscopy/energy dispersive x-ray spectrometry (sem-eds) micrograph analysis shows that the fineness of the ore and dissociation degree of useful minerals were apparently improved by optimizing the process and equipment.
A hollow mill tool is pipe-shaped with interior cutting teeth.It is primarily used to finish the exterior of cylindrical workpieces.A ball nose milling tool creates three-dimensional shapes and forms.It is similar to a slot drill and is often referred to as a ball mill.A woodruff milling tool is used for making keyways in a workpiece.
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