Self-adaptive vibration accumulation and energy supply high-efficiency vertical roller mill

Abstract

The invention relates to a self-adaptive vibration accumulation and energy supply high-efficiency vertical roller mill which comprises a hydraulic transmission system, an intelligent control system, a stand (1), a transmission device (2) and a speed reducing mechanism (6), wherein the transmission device (2) and the speed reducing mechanism (6) are arranged on the stand (1); an output end of the speed reducing mechanism (6) is provided with a grinding table device (15); an air ring (8) is arranged at the excircle of the grinding table device (15) and at an upper opening of an air inlet duct (7) communicated with an air inlet pipe (5); a plurality of grinding roller devices (10) are arranged above the grinding table device (15) by a mill door arranged on a lower shell (11); a rocker arm (9) is arranged at the outer ends of the grinding roller devices (10); one ends of a pressurizing oil cylinder (3) and a magnetic fluid damping adjustment device (4) are respectively connected with the rocker arm (9), and the other ends of the pressurizing oil cylinder (3) and the magnetic liquid damping adjustment device (4) are respectively connected with the stand (1); the upper end of a middle shell (14) is provided with a powder concentrator (12). The self-adaptive vibration accumulation and energy supply high-efficiency vertical roller mill has the advantages that the extrusion energy and the impact energy are efficiently utilized, the vibration intensity of a grinding host machine can be reduced, the grinding efficiency is improved, the grinding energy consumption is reduced, the stability of equipment is improved, the service life of the equipment is prolonged, and the running cost is lowered.

Description

technical field [0001] A high-efficiency vertical roller mill for self-adaptive vibration gathering and energy supply belongs to grinding equipment in mining, electric power, building materials and cement industries, and specifically relates to a vertical roller mill. Background technique [0002] Compared with the ball mill, the vertical roller mill has high grinding efficiency, low energy consumption, compact structure, convenient process layout, simple process flow, small floor space, large drying capacity, and large particle size of the material to be milled. The advantages of strong adaptability to grinding materials, no dust leakage in negative pressure operation, and low noise have attracted more and more attention from domestic and foreign mines, electric power, building materials, and cement industries. However, since the vertical roller mill is the main equipment in the application of various industries, its grinding operation process is an important link and has t...

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Problems solved by technology

However, since the vertical roller mill is the main equipment in the application of various industries, its grinding operation process is an important link and has the characteristics of large lag, nonlinearity, strong coupling, etc., so it has always been vertical The key and difficult issues in the grinding operation process control of roller mills not only put forward higher requirements for the grinding process control technology, but also put forward higher requirements for the structural design and optimization of vertical roller mills. Requirements; application practice proves that the vertical roller mill is sensitive to the stability of the powder-abrasive bed and the vibration of the equipment itself. A large number of cases show that the instability of the powder-abrasive bed and the vibration of the vertical roller mill are likely to cause equipment failure. And it is difficult to control timely and safely; what’s more, the particle shape and gradation of the finished powder cannot be effectively controlled by the powder selection device of the vertical roller mill. The above problems need to be solved in the development process of the vertical roller mill. Troubleshooting

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