CN208661124U - A kind of reaction kettle suitable for pyroreaction - Google Patents

Abstract

The utility model discloses a kind of reaction kettles suitable for pyroreaction, belong to chemical production field, are heated using fused salt, can satisfy the demand for heat of pyroreaction, avoid using open fire bring environmental and safety problems.The utility model includes: reaction kettle shell, fused salt heating semicanal, fused salt import, baiting valve, stirring rod, fused salt outlet, liquid reactants import, solid reactant import；Fused salt heating semicanal is welded on reaction kettle housing outer surface, fused salt heating semicanal positioned at one side bottom of reaction kettle shell is equipped with fused salt import, the fused salt heating semicanal of another upper lateral part of reaction kettle shell is exported equipped with fused salt, reaction kettle housing tip two sides are respectively equipped with liquid reactants import and solid reactant import, middle position is equipped with stirring rod in reaction kettle shell, stirring rod top connects motor beyond reaction kettle housing tip a part, and reaction kettle housing bottom middle position connects baiting valve.

Description

A kind of reaction kettle suitable for pyroreaction

Technical field

The invention belongs to chemical production field more particularly to a kind of reaction kettles suitable for pyroreaction.

Background technique

Chemical Manufacture is special for different reaction temperature demands and reaction mass usually along with certain reaction temperature Property, heating and heat-conducting mode for reaction kettle have different requirements.In organic fine chemical industry, the heating of reaction kettle Medium generally heats steam and conduction oil, reaction temperature all at 200 DEG C hereinafter, if reaction temperature require 200 DEG C with When upper (such as 300 DEG C or 400 DEG C), the combination of open fire and cauldron is generallyd use, i.e., directly burns cauldron with open fire, by the thermal energy of open fire Cauldron is transmitted to guarantee the reaction temperature in cauldron, realizes high-temperature reaction process.But there are two tight for the mode of open firing cauldron The defect of weight: (1) since high-temperature flue gas has taken away a large amount of thermal energy, heat utilization rate is low, and energy consumption is high, and operating cost is high；(2) such as Fruit is that the flue gas for burning coal and generating will seriously pollute atmosphere wherein containing a certain amount of sulphur and nitrogen oxides.

Summary of the invention

The present invention provides a kind of reaction kettles suitable for pyroreaction, are heated using fused salt, can satisfy 200 DEG C or more Demand for heat, can steadily carry and transferring heat energy, avoid using open fire bring environmental and safety problems.

In order to achieve the above object, the invention adopts the following technical scheme:

A kind of reaction kettle suitable for pyroreaction, comprising: reaction kettle shell 1, fused salt heating semicanal 2, fused salt import 3, Baiting valve 4, stirring rod 5, fused salt export 6, liquid reactants import 7, solid reactant import 8；Fused salt heats semicanal 2 helically Shape is welded on 1 outer surface of reaction kettle shell, and the fused salt heating semicanal 2 positioned at 1 one side bottom of reaction kettle shell is equipped with fused salt import 3, the fused salt heating semicanal 2 of another upper lateral part of reaction kettle shell 1 is equipped with fused salt outlet 6, and 1 top two sides of reaction kettle shell are set respectively There are liquid reactants import 7 and solid reactant import 8, middle position is equipped with stirring rod 5,5 bottom of stirring rod in reaction kettle shell 1 End is designed as rotary propeller type paddle, and 5 top of stirring rod connects motor, 1 bottom of reaction kettle shell beyond 1 top a part of reaction kettle shell Middle position is held to connect baiting valve 4.

It the invention has the advantages that: the present invention provides a kind of reaction kettle suitable for pyroreaction, is heated, is melted using fused salt Salt is a kind of heating medium for high temperature, is made of KNO3 (53%), NaNO2 (40%) and (7%) three kind of salt of NaNO3, its freezing point 142 DEG C, its most stabilized operating temperature be 450 DEG C, 450 DEG C or less it can be stable carrying and transferring heat energy；High temperature of the present invention is molten Salt heats when the runner that semicanal and reaction kettle shell are formed passes through in fused salt and the thermal energy of itself is just transmitted to reaction kettle casing metal Thermal energy is transmitted to internal reactant by wall, reaction kettle casing metal wall again, and temperature of charge is made to improve the reaction temperature for reaching requirement Degree, avoids using open fire bring safety problem and environmental problem, and can be reduced using reaction kettle heating of the invention Heat loss；Stirring rod in fused salt heating reaction kettle is designed as rotary propeller type paddle, under the action of stirring rod, participates in the object of reaction Material is downwardly into paddle lower part from paddle center, and the top of paddle is flowed to further along the wall surface of reaction kettle shell, plays two in this way The effect of aspect: it is come into full contact with first is that being uniformly mixed the material for participating in reaction；Second is that uniformly mixed material is in cycle alternation Property and reaction kettle shell heated wall contact, heat all materials all uniformly.

Detailed description of the invention

Fig. 1 is reaction kettle schematic diagram of the present invention, wherein 1 is reaction kettle shell, and 2 heat semicanal for fused salt；3 for fused salt into Mouthful；4 be baiting valve；5 be stirring；6 it is fused salt outlet, 7 be liquid reactants import, 8 is solid reactant import.

Fig. 2 is that fused salt heats semicanal and reaction kettle case weld detail drawing.

Specific embodiment

As shown, reaction kettle includes reaction kettle shell 1, fused salt heating semicanal 2, fused salt import 3, baiting valve 4, stirring rod 5, fused salt exports 6, liquid reactants import 7, solid reactant import 8；Fused salt heating semicanal 2 is welded on reaction kettle in the shape of a spiral 1 outer surface of shell, the fused salt heating semicanal 2 positioned at 1 one side bottom of reaction kettle shell are equipped with fused salt import 3, and reaction kettle shell 1 is another One upper lateral part fused salt heating semicanal 2 be equipped with fused salt outlet 6,1 top two sides of reaction kettle shell be respectively equipped with liquid reactants into Mouthfuls 7 and solid reactant import 8, middle position is equipped with stirring rod 5 in reaction kettle shell 1, and 5 top of stirring rod is beyond reaction still shell 1 top a part of body connects motor, and 1 bottom end middle position of reaction kettle shell connects baiting valve 4；Wherein 5 bottom end of stirring rod is designed For rotary propeller type paddle.

Liquid reactants from liquid reactants import 7 enter fused salt heating reaction kettle in, high-temperature molten salt from fused salt import 3 into Enter to fused salt and heat in the heated wall channel that semicanal 2 and reaction kettle shell 1 are formed, in the mistake flowed up along heated wall channel Liquid reactants transferring heat energy in Cheng Zhongxiang reaction kettle shell 1, makes liquid reactants obtain temperature raising, delivers thermal energy, cooling Fused salt afterwards starts stirring rod 5 at the same time, allows liquid reactants alternate cycles to contact heated wall, make from 6 outflow of fused salt outlet The whole uniformly heating of liquid reactants, when liquid reactants are integrally warming up to 350 DEG C, by solid reactant from solid reactant Import 8 is sent into fused salt heating reaction kettle, and under the action of stirring rod 5, solid reactant and the mixing of high-temp liquid reactant are equal It is even to come into full contact with generation reaction, solid reactant is continually added in this way, is constantly reacted, finally quantitative liquid reactions Object and solid reactant react completely generates new substance, finally releases novel substance from baiting valve 4, and high-temperature reaction process is complete At.

The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered It is considered as protection scope of the present invention.

Claims (2)

1. a kind of reaction kettle suitable for pyroreaction, which is characterized in that heat semicanal including reaction kettle shell (1), fused salt (2), fused salt import (3), baiting valve (4), stirring rod (5), fused salt export (6), liquid reactants import (7), solid reactant Import (8)；Fused salt heating semicanal (2) is welded on reaction kettle shell (1) outer surface in the shape of a spiral, is located at reaction kettle shell (1) outside Fused salt heating semicanal (2) of one side bottom of surface is equipped with fused salt import (3), and the fused salt of reaction kettle shell (1) another upper lateral part adds Hot semicanal (2) is equipped with fused salt outlet (6), and reaction kettle shell (1) top two sides are respectively equipped with liquid reactants import (7) and solid Reaction-ure inlet (8), reaction kettle shell (1) interior middle position are equipped with stirring rod (5), and stirring rod (5) top is beyond reaction still shell Body (1) top a part connects motor, and reaction kettle shell (1) bottom end middle position connects baiting valve (4).

2. the reaction kettle according to claim 1 suitable for pyroreaction, which is characterized in that the design of stirring rod (5) bottom end For rotary propeller type paddle.