A double-fan mill for non-circulating asphalt

Abstract

The utility model relates to a kind of wind does not circulate asphalt double-fan flour mill.The air inlet of flour mill is sealed through first air pipe and the air outlet of first fan, the air outlet of flour mill is sealed through second air pipe and the air inlet of second fan, there is asphalt material import above flour mill, the air outlet of second fan is sealed with the air inlet of cyclone dust collector, there is main hopper below cyclone dust collector, the air outlet of cyclone dust collector is sealed with the air inlet of bag-type dust collector, there is auxiliary hopper below bag-type dust collector.It is simple in structure, and the crushing efficiency is high, even in high temperature environment, it can work normally.

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 non-circulating asphalt dual-fan grinding mill, which has a simple structure, high grinding 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: the air inlet of the grinding mill is sealed and connected to the air outlet of the first fan through the first air pipe, the air outlet of the grinding mill is sealed and connected to the air inlet of the second fan through the second air pipe, there is an asphalt material inlet at the top of the grinding mill, the air outlet of the second fan is sealed and connected to the air inlet of the cyclone dust collector, there is a main hopper at the bottom of the cyclone dust collector, the air outlet of the cyclone dust collector is sealed and connected to the air inlet of the bag filter, and there is an auxiliary hopper at the bottom of the bag filter.

[0005] This utility model has the following advantages: 1) Simple structure and high crushing efficiency; 2) Since the air supplied to the grinding mill by the blower is fresh air, the blower dissipates the heat generated by the grinding mill into the air through the bag filter, so the grinding mill can work normally even in high-temperature environments; 3) Strong adaptability, all brittle materials can be used; 4) Due to the use of dual blowers, the asphalt material inlet of the grinding mill is under negative pressure, with no dust leakage, which is more in line with environmental protection requirements. 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 1As shown, the air inlet of the grinding mill 3 is sealed and connected to the air outlet of the first fan 1 through the first air duct 2, and the air outlet of the grinding mill 3 is sealed and connected to the air inlet of the second fan 6 through the second air duct 5. There is an asphalt material inlet 4 above the grinding mill 3, and the air outlet of the second fan 6 is sealed and connected to the air inlet of the cyclone dust collector 8. There is a main hopper 11 below the cyclone dust collector 8, and the air outlet of the cyclone dust collector 8 is sealed and connected to the air inlet of the bag filter 9. There is an auxiliary hopper 10 below the bag filter 9.

[0009] The first blower 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.

[0010] The model of the grinding mill 3 is 4R2715.

Claims

1. A non-circulating asphalt dual-fan grinding mill, characterized in that: The air inlet of the grinding mill (3) is sealed and connected to the air outlet of the first fan (1) through the first air pipe (2). The air outlet of the grinding mill (3) is sealed and connected to the air inlet of the second fan (6) through the second air pipe (5). There is an asphalt material inlet (4) above the grinding mill (3). The air outlet of the second fan (6) is sealed and connected to the air inlet of the cyclone dust collector (8). There is a main hopper (11) below the cyclone dust collector (8). The air outlet of the cyclone dust collector (8) is sealed and connected to the air inlet of the bag filter (9). There is an auxiliary hopper (10) below the bag filter (9).

2. The non-circulating asphalt dual-fan grinding mill according to claim 1, characterized in that: The first 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.

Images