Mechanical stirring device with pressure-bearing sealing and lifting capacity

Abstract

A mechanical stirring device with pressure-bearing sealing and lifting capacity comprises a motor, a reducer, a corrugated pipe, a driving stirring shaft, a mechanical seal shaft sleeve flange, a stirrer, a reducer support, a mounting bottom plate, lifting mechanisms and a sealing structure, wherein hydraulic cylinders are arranged in fixed sleeves, two piston components on the mounting bottom plate fixed at the tank top are driven by hydraulic pressure or air pressure to ascend and descend simultaneously, movable sleeves are driven to move up and down on the fixed sleeves, so that the stirring shaft is driven to compress and stretch the metal corrugated pipe, and the lifting is realized. The mechanical stirring device with pressure-bearing sealing and lifting capacity is compact in structure and attractive, occupies small space and reduces influence on tank top mounting, and mechanically sealed moving and static rings are taken as a friction pair, so that the problem of seal leakage between a circumferential moving medium in a tank and the atmosphere side is solved; and besides, the corrugated pipe, sealing rings, the mechanical seal shaft sleeve flange and the stirrer are connected, and a material in the tank is isolated from the stirring shaft, so that the problem of seal leakage between the stirring shaft and a mechanical seal shaft sleeve due to axial movement is solved.

Description

technical field [0001] The invention relates to a stirring device, in particular to a mechanical stirring device capable of pressure-bearing sealing and lifting. Background technique [0002] The mixing device is commonly used in petroleum, chemical, paper, food, medicine and environmental protection industries. It can mix and stir materials with different physical and chemical properties in the kettle for multiple purposes. Conventionally used stirring devices cannot achieve some functions under special process requirements. For example, some materials need to be stirred at different heights while keeping the kettle sealed. It has the functions of mixing, reacting and dissolving, and can perform operations such as scraping, turning, and discharging on materials, especially materials with a lot of solid sedimentation. [0003] The mechanical stirring equipment is composed of a container and a mechanical stirring device. Usually, there are two working conditions in the conta...

AI Technical Summary

Problems solved by technology

Conventionally used stirring devices cannot achieve some functions under special process requirements. For example, some materials need to be stirred at different heights while keeping the kettle sealed. It has the functions of mixing, reacting and dissolving, and can perform operations such as scraping, turning, and discharging materials, especially for materials with a lot of solid sedimentation

[0003] The mechanical stirring equipment is composed of a container and a mechanical stirring device. Usually, there are two working conditions in the container: normal pressure and pressure, and the mechanical stirring device is generally non-lifting. In order to meet some special process requirements for stirring operations, it is required The mechanical stirring device has a lifting function to achieve it, and the mechanical stirring device with lifting function requirements is a troublesome thing for the pressure-bearing container, the leakage and sealing problem of the connection between the stirring shaft and the container, it must solve the stirring of the stirring device The leakage problem caused by the rotational movement of the shaft seal, and the leakage problem caused by the axial movement of the stirring shaft up and down must be solved

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