Combination frame for large Raymond mill

Abstract

The invention discloses a combined machine base for a large Raymond mill, which comprises a machine base fixed on a concrete foundation and a grinding ring placed inside the machine base. The longitudinal section of the foundation is approximately U-shaped, and its side wall is a stepped structure. The main base with a built-in grinding ring is fixed on the bottom wall of the concrete foundation; The side walls of the seat are fixedly connected. The invention decomposes the integrated frame of the traditional Raymond mill into the main frame and the reinforcing plate fixedly connected to the side of the main frame, which solves the problems of ultra-wide and overweight in the production and transportation of the Raymond mill; The foundation is prefabricated with an air duct. When the size of the Raymond mill increases, it solves the problem that the volume of the volute is too large and difficult to transport. The main base and the reinforcement plate are connected with the anchor bolts fixed in the grouting hole. The concrete foundation is firmly connected as a whole, which increases the rigidity of the Raymond mill base.

Description

technical field [0001] The invention relates to a Raymond mill, in particular to a combined base for a large Raymond mill. Background technique [0002] When Raymond mill is used as a small mill (the inner diameter of the grinding ring is up to 2.3 meters), compared with the vertical mill of the same type, it has an irreplaceable advantage in terms of output and energy consumption per unit of product, and it is still used in the world today. widely used everywhere. [0003] The existing Raymond mill is mainly composed of fan, main machine, powder classifier, powder collector, pipeline and other components. Although the system is similar to the vertical mill, the overall development is obviously behind the vertical mill, especially the large-scale Raymond mill, which lags behind the vertical mill in terms of stand-alone output, grinding function, system control, and maintenance. The most prominent one is the low output of a single machine. The output of Raymond Mill in prod...

AI Technical Summary

Problems solved by technology

With the increase of the type of Raymond mill, the total thickness L of the grinding ring and the machine base increases sharply, resulting in the over-width and overweight of the overall machine base in the casting, processing, transportation and other links, and the increase of the total thickness also hinders the The structural design of the volute, that is, when the size increases sharply, it will lead to a super-volume volute (such as Figure 5 Shown) Difficult to transport

Therefore, the structure of the existing machine base has formed a short board that limits the development of large-scale Raymond mills

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