Combined stirred tank reactor

Abstract

The invention relates to a reactor, in particular to a combined stirred tank reactor used for producing a composite stabilizer and a modifier, which comprises a barrel, a stirring device and a material outlet, wherein the stirring device consists of a blade stirrer and a frame stirrer; the blade stirrer consists of a central rotating shaft and at least one blade stirring paddle arranged on the central rotating shaft; the frame stirrer consists of a frame body arranged along the cavity wall of the barrel, outer scraping plates arranged on the outer circumferential wall of the frame body and inner stirring paddles arranged on the inner circumferential wall of the frame body; an upwards-sunken groove is reserved above the material outlet at the bottom of the frame body; a bottom bearing is arranged on the central rotating shaft in the groove; a triangular support frame is arranged below the bottom bearing; the upper end of the triangular support frame is fixed with the bottom of the bottom bearing, while a lower end is fixed with the inner bottom of the barrel; and a small paddle is arranged below the bottom bearing on the central rotating shaft, and is in contact with the periphery of the material outlet at the bottom in the barrel. The combined stirred tank reactor can solve the problems that mixed raw materials are easy to deposit, easily adhered to the wall and unsmooth to discharge, and that reaction is incomplete, and is more environmentally-friendly and energy-saving.

Description

technical field [0001] The invention relates to a reaction kettle, in particular to a combined stirring reaction kettle used for the production of compound stabilizers, modifiers and direct method synthetic stearates. Background technique [0002] In the production process of chemical raw materials, the stirring method of the reactor generally adopts a single paddle stirring method, that is, a stirring blade is provided on the stirring shaft of the reactor, and the purpose of uniform stirring is achieved through the rotation of the stirring shaft. However, in the production process of chemical raw materials, for some raw materials with large specific gravity, high viscosity, and easy deposition of heterogeneous reactions, such as the production of composite stabilizers and modifiers, the single paddle-type stirred reactor in the prior art has been used. If it cannot meet the production requirements, it will easily cause uneven mixing of raw materials, insufficient reaction o...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: aiming at the shortcomings of the above prior art, a combined stirring reactor is proposed, which can solve the problems of mixed raw materials that are easy to deposit, easy to stick to the wall, poor discharge, and raw materials with large differences in specific gravity. Insufficient response has the problem of dead angle, and it is more environmentally friendly and energy-saving

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