Rubber and plastic spring vibration reduction device for large coal mill base and foundation and using method of rubber and plastic spring vibration reduction device

Abstract

The invention discloses a rubber and plastic spring vibration reduction device for a large coal mill base and a foundation and a using method of the rubber and plastic spring vibration reduction device. A rubber and plastic spring structure is mounted between the coal mill base and the foundation, and strong vibration brought by large particles and blocky coal gangue which randomly appear in input raw coal is absorbed. The device aims at strong vibration caused by large raw coal particles, blocky coal gangue, uneven raw coal feeding and the like, the sector rubber and plastic spring structure is adopted as a vibration reduction unit, a hydraulic jack set is matched to assist in mounting and maintenance of the rubber and plastic spring structure, vibration of the base is isolated from the foundation, wear of a transmission chain is relieved, and the interference on the connection state of the base and the transmission chain is reduced. Meanwhile, hydraulic jacks are matched to assist in vibration reduction, safety of a coal mill during working is ensured, and mounting and maintenance of a machine are also convenient. Compared with other vibration reduction devices, the rubber and plastic spring structure is lower in cost, mounting and maintenance are simpler, vibration can be effectively absorbed and reduced, the working efficiency of the coal mill can be improved, and noise pollution can be reduced.

Description

technical field [0001] The invention relates to the technical field of damping devices, in particular to a rubber-plastic spring structure damping device for a base of a large coal mill and a foundation and a method for using the same. Background technique [0002] At present, large-scale coal mills are widely used, mostly in the smelting industry and mining industry. This kind of machine is often accompanied by severe vibration and noisy noise when working, which makes the working conditions of the coal mill very bad. In addition, it will not only Aggravate the wear of the connecting parts between the foundation and the base, reduce the service life of the machine, and affect the quality of the coal particles produced. [0003] The main source of violent vibration of the coal mill is the many impurities in the input raw coal. The hardness, density, viscosity, and humidity of these impurities are different from the raw coal, which will cause the coal mill to grind coal. Whe...

AI Technical Summary

Problems solved by technology

Although these shock absorption methods can also play a certain shock absorption effect, they all have corresponding limitations.

For example, building a large reinforced concrete deep foundation is a negative shock absorption method, which is ineffective and expensive. The loss of the foundation caused by vibration is permanent loss, which will have a negative impact on the efficiency of the machine to a certain extent.

Due to the limited contact area of ​​the spring shock absorber, its bearing capacity is limited, and this shortcoming is especially prominent in the face of large and medium-sized coal pulverizers.

At the same time, when facing impurities such as large particles and massive coal gangue, their shock absorption effect becomes weaker. This is also a problem that most shock absorption methods cannot solve for a long time.

In addition, there is currently a spring damping device, which is excellent in dealing with large particles and coal gangue, and the shock absorption performance is relatively good, but this device is designed for large coal mills, whether it is The cost of retrofitting old machines or the design of new machines is extremely high, which is completely unnecessary for the shock absorption of medium-sized coal pulverizers

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