Compound kettle type reactor

Abstract

The invention relates to a chemical machinery device, and particularly relates to a compound kettle type reactor. The compound kettle type reactor comprises a stirrer arranged in an inner container, wherein the stirrer comprises a stirring paddle and a stirring shaft which are connected with each other; the stirring shaft is driven by a motor arranged on a kettle body; the stirring paddle comprises an inner sleeve, a hollow straight cylinder and an outer stirring cylinder; the upper end opening of the outer stirring cylinder is integrally connected with the lower end opening of the hollow straight cylinder; the lower end opening of the outer stirring cylinder is a flaring; the inner sleeve is arranged in the outer stirring cylinder; the lower end of the stirring shaft penetrates through the hollow straight cylinder internally, and is fixedly connected with the upper end of the inner sleeve; the upper end opening of the hollow straight cylinder is in interference fit with the stirring shaft; the lower end opening of the inner sleeve is also a flaring, and a clearance with an equal interval is left between the inner sleeve and the outer stirring cylinder; the upper end of the hollow straight cylinder is provided with a drainage hole leading to the clearance. According to the chemical machinery device, the defect of mixing nonuniformity in the prior art is overcome, and the invention provides a stirring reaction kettle which can be used for enabling a reaction liquid to flow in the height direction by mechanical stirring so as to improve the uniform mixing of a reactant.

Description

technical field [0001] The invention relates to a chemical machinery and equipment, in particular to a compound tank reactor. Background technique [0002] There are generally two types of reaction equipment used in the compound production process, tank-type stirred reactors and tubular reactors, of which the cutting fluid mainly adopts tank-type stirred reactors. The characteristics of the tank-type stirred reactor are large contact area, high mass transfer and heat transfer efficiency, high temperature sound, large operation flexibility (interval operation, semi-batch operation, continuous operation), and it is easy to control and change the reaction conditions. [0003] However, the existing stirrer mostly stirs on a stratosphere, and the stirring is uneven. In order to solve this technical problem, for example, Chinese patent CN203663844 discloses a gas circulation type non-stirring reactor, which adopts gas circulation to achieve the stirring effect. A circulating type...

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Problems solved by technology

[0003] However, most of the existing agitators are agitated on a stratosphere, and the agitation is not uniform. In order to solve this technical problem, as the Chinese patent CN203663844 discloses a gas circulation type non-stirred reactor, the gas circulation is used to achieve the agitation effect. A circulating non-stirring reactor, including a reactor body and a reactor cover, the reactor cover is hemispherical, buckled upside down on the reactor body, and at least a pair of gas inlets are provided on the reactor cover wall , the pair of gas inlets are arranged symmetrically with respect to the central axis of the reactor cover, and at least one gas outlet pipe is arranged on the upper reaction chamber wall of the reactor cover, and the inlet end of the gas outlet pipe is higher than the gas inlet The gas outlet of the gas outlet pipe is connected to the lower reaction chamber wall of the reactor body and communicates with the inner cavity of the reactor body

[0004] The reactor set in the Chinese patent CN203663844 needs to feed gas into the reactor, but it cannot guarantee whether there is a reaction relationship between the gas and the reaction liquid. This equipment It will bring impurities between the gas and the reaction liquid

It can be seen that the method of gas feeding and stirring up and down cannot be generally applied to various reaction liquids

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