Asphalt tank pitch-variable stirrer

Abstract

The invention discloses an asphalt tank pitch-variable stirrer. The asphalt tank pitch-variable stirrer comprises a power output system arranged outside an asphalt tank and a rotary stirring system arranged in the asphalt tank. The power output system is mainly composed of a motor and a speed reducer connected with the motor through a coupling. The rotary stirring system is mainly composed of a vertically arranged spindle and blades perpendicularly fixed to the spindle. The speed reducer is connected with the spindle through another coupling. The stirrer further comprises a pitch variable system. The pitch variable system is composed of an adjusting hand wheel, an adjusting gear set, a rack, a big gear plate, a small gear, a short shaft, a fixing base, a chain wheel and a chain. According to the stirrer, the mounting angle of the blades of the stirrer can be adjusted in real time according to the temperature, density and viscosity changes of asphalt in the tank, effective stirring of asphalt with different temperatures, densities and viscosities can be achieved, the production efficiency of the asphalt can be effectively improved, the energy consumption is reduced, the equipment damage probability is lowered, and the asphalt tank pitch-variable stirrer has prominent practicability and remarkable economic value.

Description

technical field [0001] The invention relates to a stirrer arranged in an asphalt tank for mixing asphalt, in particular to a stirrer capable of adjusting the blade angle outside the asphalt tank according to actual needs, and belongs to the technical field of asphalt mixing equipment. Background technique [0002] In the asphalt industry, the asphalt mixer plays a very important role. If the mixer can be used effectively, it can save energy and improve the efficiency of asphalt production. For example: adding stirring to the heating of base asphalt can reduce the heating time by about 70% and reduce the heat demand for asphalt heating; while adding stirring to the development of modified asphalt can reduce the development time from 8 hours to 2 hours ~3 hours. [0003] At present, the working media used by the mixers used in the asphalt industry are almost all relatively stable mixtures, such as dust, ore, mixed liquid, etc. The density and viscosity of these substances are...

AI Technical Summary

Problems solved by technology

The existing asphalt mixer cannot be adjusted because of the installation angle of the blades. When the ratio and temperature of the asphalt change, the blades of the agitator cannot change accordingly. The temperature of the asphalt is too low, or the asphalt is high viscosity such as rubber When using asphalt, the result of the constant angle of the paddle will lead to excessive working pressure of the agitator, excessive energy consumption, poor mixing effect, low production efficiency, and may even cause the motor to lock up and burn out, or the agitator shaft will be twisted and other safety hazards. Accidents, and when the temperature of the asphalt is too high, or the asphalt is low-viscosity asphalt such as emulsified asphalt, the angle of the blade will not change, which will cause the power of the agitator to overflow, waste energy, and may also cause vicious accidents such as splashing and tank leakage

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