CN217699185U - A reation kettle for disperse dyes production - Google Patents

Abstract

The utility model discloses a reation kettle for disperse dyes production belongs to reation kettle technical field, this reation kettle includes the cauldron body and sets up the clamp cover on the cauldron body, press from both sides and be equipped with import and export on the cover, be equipped with first agitating unit and second agitating unit on the cauldron body, first agitating unit includes first agitator motor, the first (mixing) shaft of being connected with first agitator motor and setting up at first epaxial stirring rake of stirring, second agitating unit includes second agitator motor, the second (mixing) shaft of being connected with second agitator motor and setting up at the epaxial helical blade of second stirring, be equipped with a plurality of baffling boards in the clamp cover. The utility model can obtain better heat exchange effect between the material and the kettle wall by arranging the first stirring device for transverse stirring and the second stirring device for vertical stirring; the baffle plate is arranged in the jacket, so that turbulence and flow are increased, and the heat exchange effect of the heat exchange medium and the kettle wall is improved; the inner coil pipe is covered outside the helical blade, so that the heat exchange effect of the inner coil pipe and materials in the kettle is improved.

Description

A reation kettle for disperse dyes production

Technical Field

The utility model belongs to the technical field of reation kettle, concretely relates to reation kettle for disperse dyes production.

Background

The production steps of the disperse dye are generally divided into two steps, wherein firstly, aniline is diazotized, secondly, diazotized diazo liquid and coupling components react to obtain a dye filter cake, because the diazo liquid is unstable and needs to react under a low-temperature condition, for example, below 5 ℃, the coupling temperature is about 25-30 ℃ during coupling, after the coupling reaction is finished, the temperature needs to be raised to 60-80 ℃ for heat preservation and crystal transformation for about one hour, and the temperature needs to be raised and maintained during the process, and dye intermediates such as substitution and the like need to be raised; the existing reaction kettle for producing disperse dyes generally achieves the purpose of heating or cooling by arranging a jacket on the outer wall and introducing heat exchange media such as steam or cold brine, but only exchanges heat through the jacket, the heat exchange effect is not good, steam can be introduced into materials in order to improve the heating speed in part of the heating process, but high-temperature steam directly introduced into the kettle can cause the decomposition of substances which cannot bear high temperature of the system, and the quality of the dyes is unstable; in part of the cooling process, an ice adding and cooling method is used, so that the operation is troublesome and the waste water amount of the system is increased.

SUMMERY OF THE UTILITY MODEL

The technical problem is as follows: to the above-mentioned problem that exists among the prior art, the utility model aims to solve the technical problem that a reation kettle for disperse dye production improves intensification and cooling efficiency is provided.

The technical scheme is as follows: in order to solve the technical problem, the utility model discloses a technical scheme as follows:

the utility model provides a reation kettle for disperse dye production, includes the cauldron body and sets up the cover that presss from both sides on the cauldron body, it is equipped with import and export to press from both sides to overlap, be equipped with first agitating unit and second agitating unit on the cauldron body, first agitating unit include first agitator motor, with first (mixing) shaft that first agitator motor is connected is in with the setting first epaxial stirring rake that stirs, second agitating unit include second agitator motor, with second (mixing) shaft that second agitator motor is connected is in with the setting the epaxial helical blade of second stirring, it is equipped with a plurality of baffling boards to press from both sides the cover.

Preferably, the baffle plate comprises a first annular plate arranged on the inner wall of the jacket and a second annular plate arranged on the outer wall of the kettle body.

Preferably, a plurality of risers are arranged on the baffle plate.

Preferably, an inner coil pipe for heat exchange is arranged in the kettle body, the inner coil pipe is covered outside the helical blades, and the inner coil pipe comprises an inlet pipe and an outlet pipe.

Preferably, the number of the second stirring devices is more than one.

Preferably, the stirring paddle is an anchor paddle or a frame paddle.

Preferably, the lower end of the jacket is provided with a residue discharge opening.

Has the beneficial effects that: compared with the prior art, the utility model has the advantages of it is following: 1. a better heat exchange effect between the material and the kettle wall can be obtained by arranging a first stirring device for transverse stirring and a second stirring device for vertical stirring; 2. the baffle plate is arranged in the jacket, so that turbulence and flow are increased, and the heat exchange effect of the heat exchange medium and the kettle wall is improved; 3. the inner coil pipe is covered outside the helical blade, so that the heat exchange effect of the inner coil pipe and materials in the kettle is improved.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic diagram of a first ring plate structure of the embodiment;

FIG. 3 is a schematic view of the structure of the coil in the embodiment.

Detailed Description

The present invention will be further illustrated by the following specific examples, which are carried out on the premise of the technical scheme of the present invention, and it should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention.

As shown in fig. 1, a reaction kettle for disperse dye production comprises a kettle body 1 and a jacket 2, wherein the jacket 2 is arranged on the outer wall of the kettle body 1, one side of the jacket 2 is provided with an inlet 21, the other side of the jacket 2 is provided with an outlet 22, when materials in the kettle need to be heated, steam enters through the inlet 21, and when the materials in the kettle need to be cooled, cold brine enters through the inlet 21; the first stirring device 3 is arranged at the center of the top end of the kettle body 1, the first stirring device 3 comprises a first stirring motor 31, a first stirring shaft 32 and a stirring paddle 33, the first stirring shaft 32 drives the stirring paddle 33 to rotate under the driving of the first stirring motor 31, the stirring paddle 33 adopts an anchor type paddle (frame type can also be adopted), and due to the structural characteristics of the anchor type paddle, the flow velocity of the anchor type paddle near the inner wall of the kettle body is higher than that of other types of stirring paddles, so that a larger surface heat transfer coefficient can be obtained, and a better heat transfer effect is kept; the top of the cauldron body 1 still is equipped with two second agitating unit 4, 4 symmetries of second agitating unit set up the both sides at first agitating unit 3, second agitating unit 4 includes second agitator motor 41, second (mixing) shaft 42 and helical blade 43, second agitator motor 41 drives second (mixing) shaft 42 and rotates, thereby it rotates to drive helical blade 43, helical blade 43 adopts current screw conveyer inner vane, it can upwards carry one section distance with the material during rotation, thereby carry out fore-and-aft stirring to the material in the cauldron, be favorable to thermal transmission. The lower end of the jacket 2 is provided with a residue discharge port 23, and when the jacket 2 needs to be switched from steam to cold brine or from cold brine to steam, the residual liquid or gas can be discharged through the residue discharge port 23.

As shown in fig. 1 and 2, a plurality of baffle plates 5 are arranged in the jacket 2, each baffle plate 5 comprises a first annular plate 51 and a second annular plate 52, the first annular plate 51 is arranged on the inner wall of the jacket 2, the second annular plate 52 is arranged on the outer wall of the kettle body 1, the first annular plate 51 and the second annular plate 52 are arranged at intervals, so that steam or cold brine entering from the inlet 21 passes through the baffle plates and then passes through the outlet 22, turbulence is increased, the flow is lengthened, the heat exchange effect with the kettle body is improved, the first annular plate 51 and the second annular plate 52 are both provided with a plurality of vertical plates 53, and the vertical plates 53 are uniformly distributed on the annular plates to play a role in increasing turbulence.

As shown in fig. 3, in order to improve the heat exchange effect in the kettle body 1, two inner coils 6 for heat exchange are arranged in the kettle body 1, the number of the inner coils 6 is also two corresponding to the second stirring device 4, each inner coil 6 comprises an inlet pipe 61 and an outlet pipe 62, the inlet pipes 61 and the outlet pipes 62 penetrate through the side wall of the kettle body 1, steam or cold brine for heat exchange enters from the inlet pipes 61 and exits from the outlet pipes 62 after exchanging heat with materials through the coil areas in the kettle body 1, the coil areas of the inner coils 6 cover the outer parts of the helical blades 43, the upper half part of the inner coils 6 has a better heat exchange effect than the lower half part due to a larger temperature difference, so that when the second stirring device 4 works, a better heat exchange effect can be obtained, in the disperse dye production process, when diazo liquid needs to react under a low temperature condition, the temperature is rapidly reduced by introducing cold brine into the jacket 2 and the inner coils 6, and the low temperature requirement is met; when the temperature needs to be raised after the coupling reaction is finished, steam can be introduced into the jacket 2 and the inner coil 6 for rapid temperature rise.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and embellishments can be made without departing from the principle of the present invention, and these modifications and embellishments should also be regarded as the protection scope of the present invention.

Claims (7)

1. The utility model provides a reation kettle for disperse dye production, characterized in that, includes the cauldron body (1) and sets up the cover (2) that presss from both sides on the cauldron body (1), it is equipped with import (21) and export (22) to press from both sides on cover (2), be equipped with first agitating unit (3) and second agitating unit (4) on the cauldron body (1), first agitating unit (3) include first agitator motor (31), with first (mixing) shaft (32) and the setting that first agitator motor (31) is connected are in stirring rake (33) on first (mixing) shaft (32), second agitating unit (4) include second agitator motor (41), with second (mixing) shaft (42) that second agitator motor (41) is connected and setting are in helical blade (43) on second (mixing) shaft (42), be equipped with a plurality of baffling boards (5) in pressing from both sides cover (2).

2. The reaction kettle for disperse dye production according to claim 1, wherein the baffle plate (5) comprises a first annular plate (51) disposed on the inner wall of the jacket (2) and a second annular plate (52) disposed on the outer wall of the kettle body (1).

3. The reaction vessel for the production of disperse dyes according to claim 2, characterized in that the baffles (5) are provided with a plurality of risers (53).

4. The reaction kettle for disperse dye production according to claim 1, wherein an inner coil (6) for heat exchange is arranged in the kettle body (1), the inner coil (6) is covered outside the helical blade (43), and the inner coil (6) comprises an inlet pipe (61) and an outlet pipe (62).

5. Reaction kettle for disperse dye production according to claim 1, wherein the number of second stirring devices (4) is more than one.

6. The reaction kettle for disperse dye production according to claim 1, wherein the stirring paddle (33) is an anchor paddle or a frame paddle.

7. Reactor for the production of disperse dyes according to claim 1, characterized in that the jacket (2) is provided at its lower end with a residue discharge opening (23).

Images