CN214131518U - Mixing device for producing tert-butylamine - Google Patents

Abstract

A mixing device for producing tert-butylamine belongs to the technical field of tert-butylamine production equipment. The method is characterized in that: go up distributor (19) and set up at the top of blending tank (1), lower distributor (18) set up in the bottom of blending tank (1), go up distributor (19) and lower distributor (18) just set up, the bottom of blending tank (1) is connected with input tube (5) of transported substance material, input tube (5) are linked together with the input port of lower distributor (18), the input port of going up distributor (19) and the input port of lower distributor (18) are linked together through communicating pipe (7). The utility model discloses an go up the distributor and cooperate with lower distributor, can spout the material into the blending tank by the upper and lower both ends of blending tank respectively to go up the distributor and carry out the disturbance through the spun material with lower distributor to the material in the blending tank, guarantee the material misce bene, make tert-butylamine's production more stable, improved the conversion of reaction, and then improved tert-butylamine's productivity.

Description

Mixing device for producing tert-butylamine

Technical Field

A mixing device for producing tert-butylamine belongs to the technical field of tert-butylamine production equipment.

Background

Tert-butylamine is an important lower aliphatic amine, an important organic synthetic intermediate, and has been widely used for preparing medicines, pesticides, rubber accelerators, dye colorants and chemical reagents. In the traditional production method of tert-butylamine, concentrated sulfuric acid and alkali are used in the multi-step production process, so that the equipment corrosion is serious, and the defects of serious environmental pollution, large energy consumption loss and the like are also caused. The isobutylene amination method for producing the tert-butylamine has less side reaction, good product quality and less pollution, and meets the requirement of clean production; therefore, the direct reaction of isobutylene and ammonia is currently the most desirable route for the synthesis of tert-butylamine.

However, direct amination of isobutylene belongs to an equilibrium reaction, the conversion rate is very low under industrial conditions, generally less than 20%, unreacted raw materials of ammonia and isobutylene need to be separated and then participate in the reaction again, but under the condition of low temperature, the phenomenon of nonuniform mixing of materials recycled can occur, so that the production of tert-butylamine is very unstable.

Disclosure of Invention

The to-be-solved technical problem of the utility model is: the defects of the prior art are overcome, and the mixing device for producing the tert-butylamine is capable of ensuring that the materials which are circulated back are uniformly mixed and the tert-butylamine is stable in production.

The utility model provides a technical scheme that its technical problem adopted is: this mixing arrangement of production tert-butylamine which characterized in that: including blending tank and the last distributor and the lower distributor of setting in the blending tank, go up the distributor setting at the top of blending tank, lower distributor sets up in the bottom of blending tank, goes up the distributor and just to setting up with lower distributor, and the bottom of blending tank is connected with the input tube of transported substance material, and the input tube is linked together with the input port of lower distributor, and the input port of going up the distributor is linked together through communicating pipe with the input port of lower distributor.

Preferably, a jacket is provided around the outer wall of the mixing tank. The mixing of the materials can be promoted by the jacket being able to maintain the temperature of the mixing tank at 40 ℃.

Preferably, a stirring device is arranged in the mixing tank, and the stirring device is arranged between the upper distributor and the lower distributor. The stirring device stirs the materials in the mixing tank, and further ensures the uniform mixing of the materials.

Preferably, agitating unit include agitator motor, main shaft, stirring paddle leaf and auger, the vertical setting of main shaft is in the blending tank, stirring paddle leaf has two sets ofly that set up both ends about the main shaft, the auger is installed between two sets of stirring paddle leaves, agitator motor links to each other with the main shaft to drive its rotation. The auger can be to the material in the vertical direction disturbance mix, and stirring paddle leaf can be to the material in the horizontal direction disturbance mix, and the stirring is abundant.

Preferably, the stirring paddle is in an arc shape which is gradually bent towards the rear side of the rotating direction along the direction far away from the main shaft.

Preferably, the upper end of the main shaft is connected with the upper distributor, and the lower end of the main shaft is connected with the lower distributor.

Preferably, the device further comprises a booster pump arranged on the communicating pipe. The booster pump can carry out the pressure boost to last distributor, guarantees to go up distributor spun material pressure sufficient.

Preferably, the output port of the booster pump is further connected with an output pipe, and the output pipe is provided with an output valve. The pressure of the upper distributor can be adjusted through the output pipe, and the adjustment is convenient.

Compared with the prior art, the utility model discloses the beneficial effect who has is:

this mixing arrangement of production tert-butylamine's last distributor cooperatees with lower distributor, can spout the material into the blending tank by the upper and lower both ends of blending tank respectively to go up the distributor and carry out the disturbance through the material of spun material in to the blending tank with lower distributor, guarantee material misce bene, make tert-butylamine's production more stable, improved the conversion of reaction, and then improved tert-butylamine's productivity.

Drawings

FIG. 1 is a piping connection diagram of a mixing apparatus for producing tert-butylamine.

Fig. 2 is a front cross-sectional schematic view of a mixing tank.

Fig. 3 is a front sectional view of the main shaft.

In the figure: 1. the device comprises a mixing tank 2, a jacket 3, a jacket water inlet 4, a jacket water outlet 5, an input pipe 6, an input valve 7, a communicating pipe 8, a liquid inlet valve 9, a transmission gear 10, a booster pump 11, an output pipe 12, an output valve 13, a liquid outlet valve 14, a tank body 15, a main shaft 1501, an upper conveying channel 1502, a lower conveying channel 16, a packing auger 17, stirring blades 18, a lower distributor 19 and an upper distributor.

Detailed Description

Fig. 1 to 3 are preferred embodiments of the present invention, and the present invention will be further explained with reference to fig. 1 to 3.

The utility model provides a mixing arrangement of production tert-butylamine, including blending tank 1 and set up last distributor 19 and lower distributor 18 in blending tank 1, go up distributor 19 and set up at the top of blending tank 1, lower distributor 18 sets up the bottom at blending tank 1, it just sets up with lower distributor 18 to go up distributor 19, the bottom of blending tank 1 is connected with the input tube 5 of transported substance, input tube 5 is linked together with the input port of lower distributor 18, the input port of going up distributor 19 and the input port of lower distributor 18 are linked together through communicating pipe 7. This mixing arrangement for production tert-butylamine's last distributor 19 cooperatees with lower distributor 18, can spout the material into blending tank 1 by the upper and lower both ends of blending tank 1 respectively in to go up distributor 19 and lower distributor 18 and disturb the material in blending tank 1 through the spun material, guarantee the material misce bene, make tert-butylamine's production more stable, improved the conversion of reaction, and then improved tert-butylamine's productivity.

The present invention is further described with reference to specific embodiments, however, it will be understood by those skilled in the art that the detailed description given herein with respect to the drawings is for better explanation and that the present invention is necessarily to be construed as limited to those embodiments, and equivalents or common means thereof will not be described in detail but will fall within the scope of the present application.

Specifically, the method comprises the following steps: as shown in fig. 1: the upper distributor 19 is arranged at the top of the mixing tank 1, the lower distributor 18 is arranged at the bottom of the mixing tank 1, and the upper distributor 19 and the lower distributor 18 are arranged oppositely. The outer wall surrounding the mixing tank 1 is provided with a jacket 2 or a coil pipe, in the embodiment, the bottom surrounding the mixing tank 1 is provided with the jacket 2, the bottom of the jacket 2 is provided with a jacket water inlet 3, and the top is provided with a jacket water outlet 4, so that hot water can be ensured to fill the whole jacket 2, and the temperature in the mixing tank 1 is maintained at 40 ℃.

The input pipe 5 is communicated with the input port of the lower distributor 18, and the input valve 6 is arranged on the input pipe 5, so that the on-off of material input is conveniently controlled, and the control is convenient.

The input port of the communicating pipe 7 is communicated with the output port of the input pipe 5, and the output port of the communicating pipe 7 is communicated with the input port of the upper distributor 19. Be provided with booster pump 10 on communicating pipe 7, booster pump 10 can carry out the pressure boost to the material that enters into in last distributor 19, is provided with feed liquor valve 8 at the input of communicating pipe 7, is provided with out liquid valve 13 at the delivery outlet of communicating pipe 7, can control the break-make of communicating pipe 7 through feed liquor valve 8 and play liquid valve 13, and control is convenient.

The output port of the booster pump 10 is also connected with an output pipe 11, the output pipe 11 is provided with an output valve 12, the on-off of the material output can be controlled through the output valve 12, further the pressure of the upper distributor 19 can be adjusted, and the material can be controlled to be output through the output pipe 11 by matching with the liquid outlet valve 13.

As shown in FIGS. 2 to 3: the mixing tank 1 comprises a tank body 14 and a stirring device, wherein the tank body 14 is vertically arranged, an upper distributor 19 is arranged at the top of the tank body 14, a lower distributor 18 is arranged at the bottom of the tank body 14, and the stirring device is arranged between the upper distributor 19 and the lower distributor 18, and is used for stirring materials in the tank body 14, so that the materials are uniformly stirred.

The stirring device comprises a stirring motor (not shown in the figure), a main shaft 15, an auger 16 and stirring blades 17, wherein the stirring blades 17 are provided with two groups which are arranged at the upper part and the bottom of the main shaft 15, the two groups of stirring blades 17 are arranged at intervals, and each group of stirring blades 17 comprises a plurality of blocks which are uniformly distributed at intervals around the main shaft 15. Stirring paddle 17 is along keeping away from the direction of main shaft 15 and gradually to the arc of rotation direction rear side bending, dials the material to jar body 14 outer wall, and the material temperature in jar body 14 is even with pressing from both sides cover 2 abundant heat transfer. The packing auger 16 is arranged between the two groups of stirring blades 17 and synchronously rotates along with the main shaft 15, and the packing auger 16 can convey the material at the bottom to the top of the tank body 14. The auger 16 realizes the stirring of the materials in the height direction of the tank body 14, and the stirring blade 17 realizes the horizontal stirring of the materials in the tank body 14, so that the stirring is more thorough, and no dead angle exists in the stirring. The upper end of the main shaft 15 extends out of the tank body 14, the upper end of the main shaft 15 is coaxially provided with the transmission gear 9, the stirring motor is arranged at the top of the tank body 14, and the output shaft of the stirring motor is provided with a gear meshed with the transmission gear 9 so as to drive the main shaft 15 to rotate.

The upper distributor 19 and the lower distributor 18 are coaxially mounted on the main shaft 15 and synchronously rotate along with the main shaft 15, the upper end and the lower end of the main shaft 15 are respectively provided with a rotary joint, the upper end of the main shaft 15 is provided with an upper conveying channel 1501 communicated with the upper distributor 19, the lower end of the main shaft 15 is provided with a lower conveying channel 1502 communicated with the lower distributor 18, the output end of the communicating pipe 7 is communicated with the rotary joint at the upper end of the main shaft 15 and is communicated with the upper distributor 19 through the upper conveying channel 1501, and the output port of the input pipe 5 is communicated with the rotary joint at the lower end of the main shaft 15 and is communicated with the lower distributor 18 through the lower conveying channel 1502.

The upper feeding channel 1501 is in an inverted "T" shape, an end portion of a vertical portion of the upper feeding channel 1501 is disposed on an upper end surface of the main shaft 15 and is communicated with a rotary joint at an upper end of the main shaft 15, and both ends of a horizontal portion of the upper feeding channel 1501 are disposed on both sides of the main shaft 15, respectively, and are communicated with the upper distributor 19.

The lower conveying passage 1502 has a "T" shape, an end portion of a vertical portion of the lower conveying passage 1502 is disposed on a lower end surface of the main shaft 15 and communicates with a rotary joint at a lower end of the main shaft 15, and both ends of a horizontal portion of the lower conveying passage 1502 are disposed on both sides of the main shaft 15 and communicate with the lower distributor 18, respectively.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims (8)

1. A mixing arrangement of production tert-butylamine which characterized in that: including blending tank (1) and last distributor (19) and lower distributor (18) of setting in blending tank (1), it sets up the top at blending tank (1) to go up distributor (19), lower distributor (18) set up the bottom at blending tank (1), it just sets up with lower distributor (18) to go up distributor (19), the bottom of blending tank (1) is connected with input tube (5) of transported substance, input tube (5) are linked together with the input port of lower distributor (18), the input port of going up distributor (19) and the input port of lower distributor (18) are linked together through communicating pipe (7).

2. The mixing apparatus of claim 1 for the production of tert-butylamine: a jacket (2) is arranged around the outer wall of the mixing tank (1).

3. The mixing apparatus of claim 1 for the production of tert-butylamine: a stirring device is arranged in the mixing tank (1), and is arranged between the upper distributor (19) and the lower distributor (18).

4. The mixing apparatus of claim 3 for the production of tert-butylamine: agitating unit include agitator motor, main shaft (15), stirring paddle (17) and auger (16), main shaft (15) are vertical to be set up in blending tank (1), stirring paddle (17) have two sets of that set up both ends about main shaft (15), auger (16) are installed between two sets of stirring paddle (17), agitator motor links to each other with main shaft (15) to drive its rotation.

5. The mixing apparatus of claim 4, wherein: the stirring paddle (17) is in an arc shape which is gradually bent towards the rear side of the rotating direction along the direction far away from the main shaft (15).

6. The mixing apparatus of claim 4, wherein: the upper end of the main shaft (15) is connected with an upper distributor (19), and the lower end of the main shaft is connected with a lower distributor (18).

7. The mixing apparatus of claim 1 for the production of tert-butylamine: and the device also comprises a booster pump (10) arranged on the communicating pipe (7).

8. The mixing apparatus of claim 7, wherein: the output port of the booster pump (10) is also connected with an output pipe (11), and the output pipe (11) is provided with an output valve (12).

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