Air-conveying flour mill

Abstract

The utility model relates to a pneumatic flour mill. A bag-type dust collector is fixed on the rack, a hopper is arranged below a discharge port of the bag-type dust collector, an air inlet and material mixing port of the bag-type dust collector is hermetically fixed with a discharge port of a pulverizer through a powder pipeline, and an air inlet of the pulverizer is hermetically fixed with an air outlet of a fan through an air pipe. The crusher is simple in structure and high in crushing efficiency, and can work normally even in a high-temperature environment.

Description

Technical Field

[0001] This utility model relates to a grinding mill, and more particularly to a pneumatic grinding mill for low-temperature materials. Background Technology

[0002] Some low-temperature materials, such as asphalt, are solid at room temperature, but their melting point is low, and their viscosity increases significantly around 50 degrees Celsius, severely affecting the grinding effect. In existing pneumatic mills, the air duct between the fan, mill, and dust collector is a closed loop, causing the mill temperature to rise higher and higher. This affects the grinding efficiency of low-temperature materials, especially in high-temperature environments where grinding efficiency is greatly reduced or even shut down. Summary of the Invention

[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a pneumatic conveying mill, which has a simple structure, high pulverization efficiency, and can work normally even in high temperature environments.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a bag filter is fixed on the frame, a hopper is located below the outlet of the bag filter, the air inlet of the bag filter is sealed and fixed to the outlet of the grinding mill through a powder pipe, and the air inlet of the grinding mill is sealed and fixed to the air outlet of the fan through an air duct.

[0005] This utility model has the following advantages: 1) Simple structure and high crushing efficiency; 2) Since the air supplied to the mill by the blower is fresh air, the blower dissipates the heat generated by the mill into the air through the bag dust collector, so the mill can work normally even in high temperature environments; 3) Strong adaptability, all brittle materials can be used. Attached Figure Description

[0006] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0007] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0008] like Figure 1 As shown, a bag filter 5 is fixed on the frame 6. A hopper 7 is located below the discharge port of the bag filter 5. The air inlet of the bag filter 5 is sealed and fixed to the discharge port of the mill 3 through the powder pipe 4. The air inlet of the mill 3 is sealed and fixed to the air outlet of the fan 1 through the air pipe 2.

[0009] The fan 1 has a cold air duct (not shown in the figure) at its air inlet, which is sealed to the cold air source to improve the pulverizing effect.

Claims

1. A pneumatic conveying grinding mill, characterized in that: A bag filter (5) is fixed on the frame (6). There is a hopper (7) below the outlet of the bag filter (5). The air inlet of the bag filter (5) is sealed and fixed to the outlet of the mill (3) through the powder pipe (4). The air inlet of the mill (3) is sealed and fixed to the outlet of the fan (1) through the air pipe (2).

2. The pneumatic conveying mill according to claim 1, characterized in that: The fan (1) has a cold air pipe at its air inlet, and the cold air pipe is sealed and connected to the cold air source.

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