High-yield environment-friendly flour mill

Abstract

The invention relates to a high-yield environment-friendly flour mill. The high-yield environment-friendly flour mill comprises a base, a plum blossom frame, a driving device, a milling roller assembly and an air return box, a grinding ring is fixed at the upper part in the base; the cover cylinder is fixed to the upper portion of the base; the classifier is fixed to the upper portion of the covercylinder; the plum blossom frame is rotatably located in the cover cylinder, and the driving device is located below the base and connected with and drives the plum blossom frame to rotate through the center shaft frame; the upper portion of the grinding roller assembly is fixed to the corresponding position of the plum blossom frame, a grinding roller on the lower portion of the grinding rollerassembly extends downwards into the base and corresponds to the position of the grinding ring, and the grinding roller assembly is driven by the plum blossom frame to roll along the inner wall of thegrinding ring so as to grind materials shoveled upwards by the shovel blade into dust; and the air return box wraps the outer side of the base, and airflow of the air blower is led into the upper portion of the base through the air return box. According to the flour mill, original material and airflow convergence before grinding is changed into material and airflow convergence after grinding, so that mutual interference between materials and airflow is avoided, and the current of a main machine and the current of a fan can be maximized at the same time when the flour mill works.

Description

technical field [0001] The invention relates to the field of milling equipment, in particular to a high-yield and environment-friendly mill. Background technique [0002] The existing pendulum mill has 3-6 grinding roller assemblies, which are installed on the plum blossom frame by the central shaft frame device. The plum blossom frame is driven to rotate by the driving device under the central shaft frame device, and the grinding ring is fixed on the base Due to the centrifugal force generated by the rotation, the grinding roller presses against the grinding ring and rotates on its inner surface, and the material enters the inside from the side of the cover cylinder through the feeder, and is scooped up by the spatula and sent to the grinding roller and the grinding ring. Pulverized by grinding. The air flow enters the lower part of the machine from the air return box through the lower part of the base, and flows upwards through the crushing area of ​​the grinding roller a...

AI Technical Summary

Problems solved by technology

[0003] The existing pendulum mill is widely used in the crushing and milling of materials with a grinding range of 80-400 mesh in various metal and non-metal mines because of its large processing capacity, convenient adjustment of product fineness, simplicity and reliability, and high cost performance. There are also many problems in use, such as low energy utilization rate, poor feed control, a large amount of coarse powder suspended in the machine, idling and empty beating, frequent refueling of the grinding roller assembly, vibration and noise of the mill Larger issues

The reason is that due to the design route and structure, the material entering the mill and the airflow entering the mill overlap at the bottom of the mill base, and the two affect each other in the mill. As a result, the airflow resistance is too large and the wind force is reduced, so that the motor of the main engine and the blower motor of the mill cannot work in the best state at the same time. When idling, the vibration and noise of the host increase

Moreover, because the material entering the mill and the airflow entering the mill overlap at the lower part of the mill base, under the disturbance of the airflow in the base, a large amount of coarse powder will be formed in the base to circulate and suspend, which cannot settle, which increases the grinding time. Internal resistance, also can not make unqualified powder can be re-grinded

Moreover, the original grinding roller assembly structure is lubricated with dry oil, which is easy to dry out under the high working temperature in the mill, and the old oil will not be discharged when adding new oil, so that the bearing is easy to be damaged due to poor lubrication. These problems affect the The increase in the milling output of the mill equipment makes it difficult to reduce energy consumption, reduce vibration and noise, frequent maintenance and repair, and low reliability, which ultimately restricts the popularization, application and development of the existing pendulum mill.

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