Multifunctional surface aerator

Abstract

The invention relates to a multifunctional surface aerator. The multifunctional surface aerator comprises a motor, a coupler, a lifting device and a reduction gearbox, the motor drives the reduction gearbox through the coupler, the output end of the reduction gearbox is sequentially connected with an inverted umbrella seat and an impeller shaft, an inverted umbrella impeller and an inverted umbrella conical surface body are installed on the impeller shaft, the portions, corresponding to the conical surface and the horizontal plane of the inverted umbrella conical surface body, of the inverted umbrella impeller are each provided with blades, and the blades all extend outwards; the blades arranged on the portions, corresponding to the horizontal plane of the inverted umbrella conical surface body, of the inverted umbrella impeller are unequal in height, and blades are further arranged on the portions, corresponding to the axial joint of the impeller shaft, of the inverted umbrella impeller. By means of the multifunctional surface aerator, the technical problems that for an existing aerator, the oxygenation efficiency is not high, and the flow-pushing and stirring capacity is poor are solved, and the vast application prospect is achieved.

Description

technical field [0001] The invention relates to a multifunctional surface aerator, which is suitable for the technical fields of purification and treatment of industrial waste water and urban sewage such as printing and dyeing, petrochemical industry, gas, pesticide, papermaking, leather making, etc. Background technique [0002] The inverted umbrella aerator is mainly used for the purification of printing and dyeing, petrochemical, gas, pesticide, papermaking, tanning and other industrial wastewater and urban sewage. It can be installed in the aeration tank of biochemical treatment of activated sludge method. Stirring, mixing, and oxygenation are integrated to efficiently reproduce aerobic bacteria. The inverted umbrella surface aerator always affects the efficiency of stirring and pushing flow in the aeration tank. When the inverted umbrella-shaped impeller rotates at high speed, due to the relatively large centrifugal force, the water in the aeration tank rises along the...

AI Technical Summary

Problems solved by technology

[0003] Chinese patent CN100497204C, an inverted umbrella impeller, utilizes the vacuum suction principle of rotating blades in fluid mechanics and the entrainment effect of high-speed flowing fluid, and adopts a louver structure and a guide tube device in structure to solve the problem of sludge deposition, but The improvement of oxygenation capacity is not obvious

The main purpose of extending the blade is to enhance the push flow, but it has little effect on improving the aeration effect, and the running resistance of the extended blade becomes larger, the corresponding power consumption increases, and the oxygenation power efficiency decreases instead.

[0005] Chinese patent 101624232A, an inverted umbrella aerator, arranges air pipes or microporous aerators in the end area of ​​the shaft, and the impeller design has a sawtooth structure, thereby greatly improving the oxygenation capacity and dissolved oxygen concentration of the aerator, but Due to the sawtooth structure on the impeller, the push-flow stirring effect of this form of aerator is reduced

Images