Grinding filter suitable for uniform proportioning of modified asphalt

Abstract

The invention relates to a grinding filter suitable for uniform proportioning of modified asphalt. The grinding filter comprises a device tank with a feeding channel and a discharging channel, and a filtration assembly which is arranged inside the device tank in an intercept mode, the device tank is vertically arranged, the feeding channel is located on one side of the lower part of the device tank, the discharging channel is located on one side of the upper part of the device tank, the filtration assembly comprises a plurality of layers of filter screens which are sequentially arranged from bottom to top at intervals, wherein the pore diameters of the filter screen are gradually reduced layer by layer, the multiple layers of filter screens are divided into two sets, one set is a fixed filter screen set which is fixed to the inner wall of the device tank, the other set is a grinding filter screen set which is horizontally arranged in the device tank in a rotating mode around the centerof the grinding filter screen set, the filter screens which are used for correspondingly forming the fixed filter screen set and the grinding filter screen set are sequentially distributed at intervals, and the special grinding filter further comprises a driving mechanism used for driving the grinding filter screen set to rotate. According to the grinding filter, agglomerated materials with different particle diameters from large to small can be stepwise ground and filtered, so that the materials discharged from the discharging channel are fine and homogenized, and the proportioning requirements of the modified asphalt are met.

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 ...

AI Technical Summary

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.

Images