Continuous double-horizontal-shaft forced mixer for asphalt and concrete

Abstract

The invention belongs to the technical field of asphalt and concrete mixing, and particularly relates to a continuous double-horizontal-shaft forced mixer for asphalt and concrete. The continuous double-horizontal-shaft forced mixer for the asphalt and the concrete comprises a mixing tank provided with a feeding port and a discharging port, two mixing shafts which are arranged in the mixing tank in a parallel mode, a driving device which drives the mixing shafts to rotate synchronously and reversely, a plurality of groups of mixing units and a material scraping unit. Each mixing unit comprises mixing arms and blades, wherein the mixing arms are mounted on the mixing shafts in an opposite mode, the blades are mounted on the mixing arms and comprise a feeding blade and a returning blade, and the feeding blade and the returning blade are the same in structure and size and opposite in mounting direction. The material scraping unit comprises a group of mixing arms which are arranged in an opposite mode, and material scraping blades which are connected on the mixing arms, wherein an acute included angle is formed between each material scraping blade and a side plate of the mixing tank. According to the bituminous mixture mixer, namely the continuous double-horizontal-shaft forced mixer for the asphalt and the concrete, the methods of continuous grading feeding, continuous mixing and continuous discharging are used, and the output of the bituminous mixture mixer can reach 100-1,000 tons per hour.

Description

technical field [0001] The invention belongs to the technical field of asphalt concrete mixing, in particular to a continuous twin-shaft forced mixer for asphalt concrete. Background technique [0002] The traditional batch asphalt mixing equipment still occupies a dominant position in the market, but the batch asphalt mixing equipment has the following shortcomings: First, the process flow of the mixing material is intermittent, and there is a waiting time, which reduces the productivity of the equipment; second, the equipment Huge, inconvenient for transportation and installation, and long transition period. Third, the existing asphalt mixing equipment is usually a mixing station type or a mixing building type, which has high manufacturing cost, complex structure, large floor area, inconvenient disassembly and assembly, and high maintenance cost. [0003] The mixture produced by the continuous mixer has the characteristics of good uniformity, stable operation, large outpu...

AI Technical Summary

Problems solved by technology

[0002] The traditional batch asphalt mixing equipment still occupies a dominant position in the market, but the batch asphalt mixing equipment has the following disadvantages: first, the process of mixing materials is intermittent, and there is a waiting time, which reduces the productivity of the equipment; second, the equipment Huge, inconvenient for transportation and installation, and long transition period

Third, the existing asphalt mixing equipment is usually a mixing station or a mixing building, with high manufacturing costs, complex structures, large floor space, inconvenient disassembly and assembly, and high maintenance costs

At present, the production output of intermittent twin-shaft forced mixer in the world is only 640t / h, and it is still blank to use continuous twin-shaft forced mixer for road asphalt concrete mixing.

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