Mill filter suitable for uniform batching of modified asphalt

Abstract

The invention relates to a mill filter suitable for uniform batching of modified asphalt, which comprises a tank with a feed channel and a discharge channel, and a filter assembly inside the filter tank provided with interception, the tank is vertically arranged, and the feed channel is located at the lower part of the tank On one side, the discharge channel is located on the upper side of the tank. The filter assembly includes multi-layer filter screens that are arranged at intervals from bottom to top and whose mesh apertures become smaller layer by layer. The multi-layer filter screens are divided into two groups, one group It is a fixed filter set fixed on the inner wall of the tank, and the other set is a grinding filter set installed in the tank horizontally rotating around its own center, in which the filter screens that respectively constitute the fixed filter set and the grinding filter set are in turn Distributed at intervals, the special grinder also includes a driving mechanism for driving the rotation of the grinding filter set. The invention can gradually grind and filter agglomerated materials with different particle sizes from large to small, so that the materials discharged from the discharge channel are fine and homogeneous, which meets the batching requirements of modified asphalt.

Description

technical field [0001] The invention belongs to the field of modified asphalt production equipment, in particular to a mill filter suitable for uniform batching of modified asphalt. Background technique [0002] As we all know, in the batching process of modified asphalt, the requirements for the uniformity of the final material are very high. In order to obtain a uniform final modified material, the material needs to be filtered again. The conventional method in the industry is to use a filter. The filter Generally, it refers to letting the material pass through a single-layer filter with a certain mesh number to filter the uneven impurities (commonly such as metal debris, rubber blocks, etc.) in the material. [0003] However, in the long-term filtration, the mesh of the filter screen will become smaller and smaller due to the bridging effect, and the filtration efficiency will become lower, which will affect the discharge speed. At the same time, some agglomerates in the ...

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Problems solved by technology

[0003] However, in the long-term filtration, the mesh of the filter screen will become smaller and smaller due to the bridging effect, and the filtration efficiency will become lower, which will affect the discharge speed. At the same time, some agglomerates in the filtered material will pass through the filter holes. , in order to solve the problem of agglomeration, some manufacturers simply do not filter with a filter. For the agglomeration in the material, a grinder is used before the outlet for impurity removal. After the material is ground, the material is discharged. Large particle agglomeration can play a grinding role, but for small particle agglomeration, it still cannot be disintegrated and dispersed. Therefore, there is still a big problem in the uniformity of modified asphalt ingredients.

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