Graphite reaction kettle

Abstract

The invention relates to a graphite reaction kettle which comprises an upper graphite shell cover, a graphite barrel body, a lower graphite shell cover and metal protective layers; the graphite reaction kettle is characterized in that cooling liquid or steam is introduced into a circular-ring-shaped groove 8 and a circular-ring-shaped groove 9, and the cooling liquid or steam circulates through a gap reserved between the barrel body metal protective layer and the graphite barrel body as well as a gap reserved between the lower shell cover metal protective layer and the lower graphite shell cover, so that the graphite reaction kettle can be cooled or heated, heating or cooling of the reaction kettle can be more uniform, the production efficiency can be improved, and finally the cooling liquid or steam can be discharged through a drain outlet formed in the bottom end, the cooling liquid is prevented from remaining in the graphite reaction kettle; a man hole adopts an ellipsoidal structure, therefore pipelines and batching holes on the upper graphite shell cover can be distributed more uniformly and reasonably.

Description

technical field [0001] The invention relates to the field of reaction devices, in particular to a graphite reaction kettle. Background technique [0002] In chemical production, anti-corrosion reactors are used in many industries. The most commonly used anti-corrosion reactors in the market are enamel reactors, plastic reactors and stainless steel reactors. Compared with enamel reactors, plastic reactors and stainless steel reactors, graphite reactors have the following advantages: [0003] The thermal conductivity of impermeable graphite material is 102w / m.℃, the thermal conductivity of ordinary enamel is 1.5w / m.℃, the thermal conductivity of various stainless steels is between 10-30w / m.℃, and the thermal conductivity of various plastics The coefficient is between 0.04-0.42w / m.℃. The thermal conductivity of graphite is much larger than that of other materials, and the thermal conductivity is better. The main reason is that due to the physical properties of the medium (su...

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Problems solved by technology

[0004] The sewage outlet of the ordinary graphite reactor is installed on the side, and its disadvantage is: when the graphite reactor is cooling, the cooling liquid is discharged from the side, and some cooling liquid located on the lower side of the sewage outlet is not easy to discharge, and will remain in the graphite reactor; The bottom end of the graphite lower head of the general graphite reactor is directly connected to the metal protective layer of the lower head, and there is no heating or cooling groove between the two. The disadvantage is that the bottom of the graphite reactor cannot be heated or cooled. , so that the heating or cooling process is uneven and the reaction rate is reduced. The manhole of the ordinary graphite reactor adopts a circular structure. In special cases, the diameter of the manhole of the round hole is too large, which will interfere with other nozzles and hinder other pipes. Layout

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