CN105396533A - Reaction kettle - Google Patents

Abstract

The invention belongs to a fixed reactor provided with internal mobile elements and particularly discloses a reaction kettle. The reaction kettle comprises a reaction kettle body, a stirring shaft and stirring blades, wherein the stirring shaft is located in the reaction kettle and coaxially connected with the reaction kettle body, and the stirring blades are spirally distributed on the stirring shaft; the reaction kettle further comprises a rotary joint and a water inlet pipe, a first cavity is formed in the stirring shaft, a plurality of first liquid outlet holes are formed in the stirring shaft and communicated with the cavity, and the water inlet pipe is communicated with the stirring shaft through the rotary joint. Compared with the traditional reaction kettle, the reaction kettle in the scheme has the advantages that a solvent is thrown out of the stirring shaft through centrifugal force of the stirring shaft and can be more sufficiently mixed with a previously added solvent, the mixing degree of the solvents is increased, and resource waste is reduced.

Description

Reactor

technical field

The invention belongs to a stationary reactor with internal moving elements, in particular to a reactor.

Background technique

Since various chemical changes in the chemical process are based on the full mixing of the medium participating in the reaction, stirring operation is required to obtain better results. The reactor is a mixing, stirring, and reaction process used in the production process. Equal to an integrated chemical container, it is widely used in chemical, food, medicine, resin synthesis and other industries. The existing reactor usually includes a reactor body, a stirring shaft and stirring blades, the stirring shaft is located in the reactor and connected coaxially with the reactor body, and the stirring blades are spirally distributed on the stirring shaft. The various solvents inside are mixed through the stirring shaft, and then the temperature of the reactor is controlled, usually heated to a certain temperature, and the solvent starts to react after reaching the reaction conditions of the solvent. However, only a stirring device is provided, and the mixing between the solvents is not uniform enough, resulting in incomplete reaction of many raw materials, and the effect is poor anyway, resulting in a waste of resources.

Therefore, there is an urgent need for a reactor with a good mixing effect between solvents to reduce waste of resources.

Contents of the invention

The object of the present invention is to provide a reaction kettle capable of increasing the degree of mixing between solvents.

In order to achieve the above object, the basic solution of the present invention is: a reactor, including a reactor body, a stirring shaft and a stirring blade, the stirring shaft is located in the reactor body, and is coaxially connected with the reactor body, and the stirring blades are spirally distributed On the stirring shaft, which also includes a rotary joint and a water inlet pipe, a first cavity is arranged in the stirring shaft, and a plurality of first liquid outlet holes are arranged on the stirring shaft, and the first liquid outlet holes communicate with the cavity , the water inlet pipe communicates with the stirring shaft through the rotary joint.

The principle of this basic scheme is: first add one of the solvents into the reactor, immerse the stirring shaft in the solvent, and then control the temperature of the reactor body to make it reach the temperature required for the reaction. Afterwards, the stirring shaft is driven to rotate, and when the solvent rotates, another solvent is added into the stirring shaft, and the solvent enters the reactor through the stirring shaft from the first outlet hole, and reacts with the previously added solvent.

The beneficial effect of this basic scheme is that: this scheme can add solvent to the stirring shaft while ensuring the rotation of the stirring shaft by setting the rotary joint. Since the stirring shaft is in a rotating state, the solvent in the stirring shaft is thrown out of the stirring shaft under the action of centrifugal force, and enters the cavity to fully react with the previously added solvent. Moreover, the number of liquid outlet holes is multiple, and the liquid can enter the cavity from multiple positions and mix more uniformly. Compared with the traditional reaction kettle, this scheme does not add various reaction solvents in advance, by adding one or several solvents first, and then adding another solvent when the temperature and other conditions meet the requirements, the solvent added after entering the reaction When it is in the kettle, it can fully react. In addition, the centrifugal force of the stirring shaft is used to throw the solvent out of the stirring shaft, so that the solvent added earlier can be mixed more fully, which increases the mixing degree of the solvents and reduces the waste of resources.

Scheme 2: This is the optimization of the basic scheme. The stirring blade is provided with a second cavity, and the second cavity communicates with the first cavity. The stirring blade is provided with a second cavity communicating with the second cavity. Two outlet holes. The contact area between the stirring blade and the solvent in the reactor is larger, so that the mixing degree between the solvents is higher.

Solution 3: This is the preferred option of Solution 2, which also includes a stirring rod fixed on the rotating blade. The stirring rod can further increase the stirring effect of the solvent in the reactor.

Solution 4: This is the preferred option of Solution 3, the second liquid outlet holes are evenly distributed on the stirring blades. The evenly distributed second outlet holes make the solvents mix more evenly.

Scheme 5: This is the optimization of Scheme 4, which is the optimization of any one of the basic scheme to Scheme 3, and the rotary joint is a single-circuit rotary joint. The sealing surface and sealing ring of the single-circuit rotary joint are made of special materials, which are wear-resistant, long-lived, corrosion-resistant, and leak-free. Compared with the double-circuit rotary joint, the price is cheaper.

Description of drawings

Fig. 1 is the structural representation of embodiment 1 of reaction kettle of the present invention.

detailed description

The present invention will be described in further detail below by means of specific embodiments:

The reference signs in the accompanying drawings of the specification include: the reaction kettle body 10, the liquid inlet 103, the liquid outlet 105, the stirring shaft 20, the first liquid outlet 201, the stirring blade 21, the stirring rod 22, the rotary joint 30, the liquid inlet Tube 40, motor 50.

Example 1

As shown in FIG. 1 , the reactor includes a reactor body 10 , a stirring shaft 20 and stirring blades 21 . The stirring shaft 20 is located in the reactor and connected coaxially with the reactor body 10 , the stirring blade 21 is helical and welded on the stirring shaft 20 , and the motor 5010 is connected to the output end of the stirring shaft 20 . Wherein, also comprise swivel joint 30 and water inlet pipe. The stirring shaft 20 is provided with a first cavity, and the stirring shaft 20 is provided with a plurality of first liquid outlet holes 201 , and the first liquid outlets 105 located at the lower part of the stirring shaft 20 are evenly distributed. The first liquid outlet hole 201 communicates with the cavity, and the water inlet pipe communicates with the stirring shaft 20 . In addition, a stirring rod 22 is welded on the stirring blade 21, and the stirring rod 22 can increase the stirring area, thereby enhancing the stirring effect.

During specific work, one of the solvents is first added to the reactor, the stirring shaft 20 is immersed in the solvent, and then the temperature of the reactor body 10 is controlled to reach the temperature required for the reaction. Afterwards, drive agitator shaft 20 to rotate, when solvent rotates, add another kind of solvent in agitator shaft 20, this solvent enters in the reactor from the first outlet hole 201 through agitator shaft 20, and the solvent that adds before reaction. In this solution, by setting the rotary joint 30 , while ensuring the rotation of the stirring shaft 20 , the solvent can also be added to the stirring shaft 20 . Since the stirring shaft 20 is in a rotating state, the solvent in the stirring shaft 20 is thrown out of the stirring shaft 20 under the action of centrifugal force, and enters into the cavity to fully react with the previously added solvent. Moreover, the number of liquid outlet holes is multiple, and the liquid can enter the cavity from multiple positions and mix more uniformly. In addition, a pressurizer can be added, and the pressurizer communicates with the liquid inlet pipe 40, so as to increase the pressure of the feed solvent during feed, thereby enhancing the effect of mixing.

Example 2

The difference between this embodiment and Embodiment 1 is that the stirring blade 21 is provided with a second cavity, the second cavity communicates with the first cavity, and the stirring blade 21 is provided with a second cavity communicating with the second cavity. Two outlet holes. There are multiple second liquid outlet holes, which are evenly distributed on the stirring blade 21 . Compared with Example 1, the stirring blade 21 in this solution has a larger contact area with the solvent in the reactor, so that the mixing degree between the solvents is higher.

What is described above is only an embodiment of the present invention, and common knowledge such as specific structures and characteristics known in the scheme are not described here too much. It should be pointed out that for those skilled in the art, under the premise of not departing from the structure of the present invention, several modifications and improvements can also be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the implementation of the present invention. Effects and utility of patents. The scope of protection required by this application shall be based on the content of the claims, and the specific implementation methods and other records in the specification may be used to interpret the content of the claims.

Claims (5)

1. reactor, comprise reactor body, shaft and stirring vane, described shaft is positioned at reactor body, and is coaxially connected with reactor body, and described stirring vane Spiral distribution is on shaft, it is characterized in that, also comprise swivel joint and water inlet pipe, be provided with the first cavity in described shaft, shaft is provided with some first fluid holes, described first fluid hole and cavity connects, described water inlet pipe is communicated with shaft by described swivel joint.

2. reactor as claimed in claim 1, it is characterized in that, be provided with the second cavity in described stirring vane, described second cavity and the first cavity connects, described stirring vane is provided with the second fluid hole with the second cavity connects.

3. reactor as claimed in claim 2, it is characterized in that, also comprise puddler, described puddler is fixed on rotating vane.

4. reactor as claimed in claim 3, it is characterized in that, described second fluid hole is evenly distributed on stirring vane.

5. the reactor as described in any one of claim 1-4, is characterized in that, described swivel joint is single loop swivel joint.