A glass-lined detachable stirrer with screw connection

Abstract

The invention belongs to the field of chemical machinery and particularly relates to a detachable glass-lined stirrer adopting threaded connection. The detachable glass-lined stirrer comprises a drive device and a stirring assembly, wherein the stirring assembly comprises a stirring shaft, a first end platform, a first screw and a first impeller, one end of the stirring shaft is connected with a drive shaft of the drive device, a blind hole is formed in a hub of the first impeller in the axial direction, one end of the first screw is in threaded connection with the blind hole, and a sealing base is attached between the first end platform and the first impeller; the rotation direction of the stirring assembly is consistent with the screwing direction of the first screw screwed into the blind hole, and an anti-reversion device is mounted on the drive shaft of the drive device. The detachable glass-lined stirred has the benefits as follows: the detachable glass-lined stirrer can be disassembled and assembled in various reaction kettles, threaded connection is adopted, operation is simple, the success rate of disassembly is high, the surface of glass lining cannot be damaged, the thread machining precision is low, and machining is easy; the multi-layer glass-lined stirrer is detachably arranged, various impellers can be combined, and the stirring effect is good; machining is facilitated due to segmentation of the shaft; convenience in disassembly, anti-corrosion performance, manufacturing simplicity and the stirring effect are guaranteed.

Description

technical field [0001] The invention belongs to the field of chemical machinery, and in particular relates to a glass-lined detachable stirrer with screw connection. Background technique [0002] Due to its excellent corrosion resistance, smooth surface and easy cleaning, no metal ion pollution, and low price, the glass-lined reactor has been widely used in chemical, pharmaceutical, pesticide, food and other fields; however, the agitator paddle type it uses Monotonous, in China, the paddle type, impeller type, anchor type, frame type and axial flow type are generally the main types. The surface of the agitator needs to be glass-lined. Due to the special requirements of the glass-lined process, the paddles and the stirring shaft are welded into an integral structure, and the corners must have arc transitions. Due to the overall structure of the glass-lined agitator, it is necessary to design a larger stirring installation port for the glass-lined reactor, or to adopt a struc...

AI Technical Summary

Problems solved by technology

But this disassembly technology has many problems: 1. It is difficult to remove the blades of the agitator, because when the agitator shaft is frozen or the blade hub is heated, heat transfer between the hub and the shaft is inevitable, resulting in The temperature difference becomes smaller, and the amount of thermal expansion and cold shrinkage decreases, making it more difficult to remove, and the phenomenon of being unable to remove occurs from time to time

2. When installing and dismantling, liquid nitrogen and other special tools need to be used, and the operation is complicated

3. The honing (grinding) of the glass-lined surface at the joint between the inner hole of the blade hub and the shaft requires high precision and is very difficult to process. This is one of the main reasons why domestic glass-lined manufacturers cannot popularize detachable agitators

[0004] Therefore, in general, the current glass-lined detachable agitator is difficult to process, difficult to install and dismantle, and easy to damage the original corrosion resistance of glass-lined.

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