CN205007971U - Synthetic reactor stirrer of trifluoro ethyl acetoacetate - Google Patents

Abstract

The utility model discloses a stirrer for a synthesis reaction kettle of ethyl trifluoroacetoacetate, which comprises a motor, a reducer and a stirring shaft, the motor and the reducer are provided with the top of the stirring shaft, and the stirring shaft is provided with two stages The agitator is respectively a first agitator and a second agitator, the first agitator and the second agitator are three-blade propulsion agitators, the stirring blades of the first agitator and the second agitator are connected with There is a certain inclination between the stirring shafts. The utility model adopts a two-stage three-leaf propulsion type agitator, and there is a certain inclination angle between the agitating blade and the agitating shaft, which can drive the material to roll up and down, improve the agitation rate of the material, and accelerate the heat transfer and mass transfer efficiency. The two-stage agitator is set opposite to each other, which can better lift the material, strengthen the mixing force of the material, and improve the mixing efficiency.

Description

A kind of ethyl trifluoroacetoacetate synthesis reactor stirrer

technical field

The utility model belongs to the field of chemical equipment, in particular to a stirrer for a reaction kettle for synthesis of ethyl trifluoroacetoacetate.

Background technique

The synthesis process of ethyl trifluoroacetoacetate is generally carried out in a reactor, and an agitator is provided in the reactor. The existing ethyl trifluoroacetoacetate synthesis reactor generally adopts an anchor stirrer, but due to the ethyl trifluoroacetoacetate The viscosity of the feed liquid is not very high, and the anchor stirrer cannot be used to stir the feed liquid well, which will affect the mixing of the feed liquid, and then affect the reaction effect.

Utility model content

Aiming at the deficiencies of the prior art, the purpose of this utility model is to provide a stirrer for a reaction kettle for the synthesis of ethyl trifluoroacetoacetate, which can better gather the materials to stir the materials quickly and fully, and improve the stirring efficiency.

In order to achieve the above object, the technical solution adopted in the utility model is: a kind of ethyl trifluoroacetoacetate synthesis reaction kettle stirrer, comprises motor, speed reducer and stirring shaft, and described motor and speed reducer are provided with the top of stirring shaft, The stirring shaft is provided with two-stage stirrers, respectively the first stirrer and the second stirrer, the first stirrer and the second stirrer are three-blade propulsion stirrers, and the first stirrer There is a certain inclination angle between the stirring blade and the stirring shaft of the second stirrer.

Further, the inclination angle between the stirring blade and the stirring shaft is 10°.

Further, the first agitator and the second agitator are arranged opposite to each other, the inclination angle of the first agitator is downward, and the inclination angle of the second agitator is upward.

Further, the first agitator is a left-handed three-blade propulsion type agitator, and the second agitator is a right-handed three-blade propulsion type agitator.

Further, the diameter of the stirring blades of the first stirrer and the second stirrer is 1/3 of the inner diameter of the reactor, and the distance between the stirring blades and the inner wall of the reactor is 30-40 cm.

The beneficial effect of the utility model is that: a two-stage three-blade propulsion type agitator is adopted, and there is a certain inclination angle between the agitating blade and the agitating shaft, which can drive the material to roll up and down, improve the agitation rate of the material, and then accelerate heat transfer, quality efficiency. The two-stage agitator is set opposite to each other, which can better lift the material, strengthen the mixing force of the material, and improve the mixing efficiency. The first agitator is left-handed, the second agitator is right-handed, and the two agitators have opposite agitation directions, which can also increase the agitation strength of the material and further improve the agitation efficiency.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a structural schematic diagram of the first agitator.

Fig. 3 is a schematic structural diagram of the second agitator.

In the figure: 1-motor, 2-reducer, 3-stirring shaft, 4-reactor, 5-first agitator, 6-second agitator.

detailed description

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.

As shown in the figure: a kind of ethyl trifluoroacetoacetate synthesis reactor stirrer, comprises motor 1, speed reducer 2 and stirring shaft 3, and described motor 1 and speed reducer 2 are provided with the top of stirring shaft 3, and described stirring The shaft 3 is provided with two-stage agitators, which are respectively the first agitator 5 and the second agitator 6, and the first agitator 5 and the second agitator 6 are all three-blade propulsion agitators, and the first agitator There is an inclination angle of 10° between the stirring blades of the agitator 5 and the second agitator 6 and the stirring shaft 3, the first agitator 5 and the second agitator 6 are relatively arranged, and the inclination angle of the first agitator 5 is toward Next, the inclination angle of the second agitator 6 is upward, the first agitator 5 is a left-handed three-blade propulsion type agitator, the second agitator 6 is a right-handed three-blade propulsion type agitator, and the first The diameter of the stirring blades of the agitator 5 and the second agitator 6 is 1/3 of the inner diameter of the reactor 4, and the distance between the stirring blades and the inner wall of the reactor 4 is 30-40 cm.

The above descriptions are only preferred embodiments of the present utility model, and are not limitations of the present utility model. Changes, modifications, additions or replacements made by those skilled in the art within the essential scope of the present utility model should also belong to the protection scope of the present utility model.

Claims (6)

1. a kind of ethyl trifluoroacetoacetate synthesis reaction kettle stirrer, comprise motor, speed reducer and stirring shaft, it is characterized in that: described motor and speed reducer are provided with the top of stirring shaft, described stirring shaft is provided with two Stage agitator, respectively the first agitator and the second agitator, the first agitator and the second agitator are three-blade propulsion agitator, the stirring blades of the first agitator and the second agitator There is a certain inclination angle with the stirring shaft. 2. Ethyl trifluoroacetoacetate synthesis reactor stirrer according to claim 1, is characterized in that: the inclination angle between described stirring blade and stirring shaft is 10 °. 3. according to claim 1 and 2 described ethyl trifluoroacetoacetate synthetic reaction kettle stirrers, it is characterized in that: described first stirrer and second stirrer are set relatively, and the inclination angle of described first stirrer is toward Next, the inclination angle of the second agitator is upward. 4. trifluoroacetoacetate ethyl synthesis reactor agitator according to claim 3, is characterized in that: described first agitator is left-handed three-blade propulsion type agitator, and described second agitator is right-handed three Leaf propeller agitator. 5. according to claim 1 or 2 or 4 described ethyl trifluoroacetoacetate synthesis reactor stirrer, it is characterized in that: the diameter of the stirring blade of described first stirrer and second stirrer is 1/4 of reactor internal diameter 1/3. 6. The stirrer for the synthesis reaction kettle of ethyl trifluoroacetoacetate according to claim 5, characterized in that: the distance between the stirring blade and the inner wall of the reaction kettle is 30-40cm.