CN211636515U

CN211636515U - Reaction kettle for chloracetyl chloride production with uniform chlorine addition

Info

Publication number: CN211636515U
Application number: CN201922414699.7U
Authority: CN
Inventors: 张美凤
Original assignee: Changzhou Institute of Technology
Current assignee: Changzhou Institute of Technology
Priority date: 2019-12-29
Filing date: 2019-12-29
Publication date: 2020-10-09
Anticipated expiration: 2029-12-29

Abstract

The utility model discloses a chlorine adds even chloracetyl chloride production and uses reation kettle, including the reation kettle body, the diapire middle part of reation kettle body is provided with cylindrical through-hole, sets up the gas dispersion dish in the cylindrical through-hole, and the gas dispersion dish is hollow structure, and the up end of gas dispersion dish is spread all over and is had the ventilative micropore that leads to the gas dispersion dish inside, and the gas dispersion dish is provided with the gas inlet pipe that leads to the gas dispersion dish inside on the disk body lateral wall that is located reation kettle body below, is provided with the glass silk group in the cavity of gas dispersion dish inside, and the one end that the gas inlet pipe is located the gas dispersion dish inside inserts in the groove structure of glass silk group; the utility model discloses be provided with gas dispersion dish and glass silk group, the chlorine that adds is gone into the reaction liquid in the reation kettle body by the secondary dispersion afterward under the effect of the ventilative micropore of glass silk group and gas dispersion dish in, has reduced chlorine and the required time of reaction liquid misce bene, has reduced production time, has improved production efficiency.

Description

Reaction kettle for chloracetyl chloride production with uniform chlorine addition

Technical Field

The utility model relates to a chloracetyl chloride production facility field specifically is a chlorine adds even reation kettle for chloracetyl chloride production.

Background

Chloroacetyl chloride is a colorless or yellowish liquid with strong irritation. Chloroacetyl chloride is an important intermediate of pesticides, can be used for producing pesticides such as dimethoate, omethoate, imazalil, metalaxyl, oxadixyl and the like, is also an important medical intermediate, and can be used for synthesizing diazepam, nitro diazepam, lidocaine, praziquantel, isolocaine, ethomothiazine, pimox and the like. In the production of chloracetyl chloride, chlorine needs to be continuously added into a reaction kettle and continuously stirred, so that the reaction solution and the chlorine are uniformly mixed. The existing reaction kettle is added with chlorine gas by arranging a pipe communicated with the outside of the reaction kettle at a position which does not influence the rotation of a stirring shaft and a stirring blade in the reaction kettle and adding chlorine gas into reaction liquid through the pipe. The adding mode has the problems that the chlorine gas has stronger aggregation and can be uniformly mixed with the reaction liquid only by long-time stirring of the stirring mechanism, so that the production time is long and the production efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a chlorine adds even reation kettle for chloroacetyl chloride production, it is stronger to aim at improving the chlorine gathering nature that current reation kettle for chloroacetyl chloride of production exists the interpolation, need just can with the problem of reaction liquid misce bene under the long-time stirring of rabbling mechanism.

The utility model discloses a realize like this: a reaction kettle for producing chloracetyl chloride with uniform chlorine addition comprises a reaction kettle body, wherein a driving device is arranged at the upper end of the reaction kettle body, a stirring shaft is vertically arranged in the reaction kettle body, the upper end of the stirring shaft is rotationally connected with the driving device, stirring blades are arranged on the stirring shaft, a cylindrical through hole is arranged in the middle of the bottom wall of the reaction kettle body, a gas dispersion disc is arranged in the cylindrical through hole and is of a hollow structure, breathable micropores leading to the inside of the gas dispersion disc are distributed on the upper end face of the gas dispersion disc, the upper end face of the gas dispersion disc is flush with the upper end face of the bottom wall of the reaction kettle body, the lower end of the gas dispersion disc is positioned below the bottom wall of the reaction kettle body, and an air adding pipe leading to the inside of the gas dispersion disc is arranged on the side wall of the disc body below the reaction kettle body, one end of the gas filling pipe is positioned inside the gas dispersion disc, and the other end of the gas filling pipe is positioned outside the gas dispersion disc; be provided with glass silk group in the inside cavity of gas dispersion dish, one side that glass silk group is towards the gas filling pipe is provided with groove structure, the gas filling pipe is arranged in the groove structure that glass silk group was inserted to the inside one end of gas dispersion dish.

Furthermore, the one end that the gas filling pipe is located the gas dispersion dish outside is provided with the check valve, the other end of check valve is connected with the trachea and connects.

Furthermore, a through hole leading to the inner part of the gas dispersion disc is formed in the bottom wall of the gas dispersion disc, a discharging pipe is installed on the through hole, and a discharging valve is arranged on the discharging pipe.

Furthermore, be provided with a plurality of baffles on the interior diapire of gas dispersion dish, the glass silk group is located the inboard of each baffle.

Further, the lateral wall of reation kettle body is bilayer structure, including inner wall, outer wall and the cavity layer between inner wall and the outer wall, the lower part and the upper portion of outer wall are provided with inlet tube and the outlet pipe that leads to the cavity layer respectively.

Further, be provided with the sampling tube that accesss to its inside on the lateral wall of reation kettle body, the sampling tube sets up in the middle part position of reation kettle body lateral wall, be provided with the sample valve on the sampling tube.

Further, be provided with the viewing aperture on the lateral wall of reation kettle body, viewing aperture department installs the observation window that transparent material made.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses

1. Be provided with gas dispersion dish and glass silk group, by the chlorine that adds in the trachea entering gas dispersion dish, by the first dispersion under the effect of glass silk group, then in the reaction liquid that gets into in the reation kettle body after the second time dispersion under the effect of the ventilative micropore that sets up on the gas dispersion dish up end, so to the utility model discloses the chlorine that adds is in the dispersed entering reaction liquid, has reduced chlorine and the required time of reaction liquid misce bene, has reduced production time, has improved production efficiency.

2. Be provided with on the lateral wall of reation kettle body and access to its inside sampling tube, be provided with the sample valve on the sampling tube, in the production process of chloroacetyl chloride, need sample analysis reaction process, the setting up of sampling tube and sample valve makes sample analysis more convenient.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural diagram of a chloroacetyl chloride production reaction kettle with uniform chlorine addition;

FIG. 2 is a front view of a chloroacetyl chloride production reaction vessel with uniform chlorine addition;

FIG. 3 is a top view of a connection structure among a gas dispersion plate, a gas filling pipe, a check valve and a gas pipe joint of the reaction kettle for producing chloroacetyl chloride, in which chlorine gas is uniformly added;

fig. 4 is a side view of the connection structure among the glass fiber cluster, the gas filling pipe, the check valve and the gas pipe joint of the reaction kettle for producing chloroacetyl chloride with uniform chlorine addition.

In the figure: 1. a reaction kettle body; 101. an inner wall; 102. an outer wall; 103. a hollow layer; 2. a drive device; 3. a stirring shaft; 4. a stirring blade; 5. a gas dispersion panel; 501. air-permeable micropores; 6. an air adding pipe; 7. glass fiber clusters; 8. a gas pipe joint; 9. discharging the material pipe; 10. a discharge valve; 11. a baffle plate; 12. a water inlet pipe; 13. a water outlet pipe; 14. a sampling tube; 15. sampling valve, 16, observation window, 17, check valve.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, in an embodiment of the present invention, a reaction kettle for producing chloroacetyl chloride with uniform chlorine addition includes a reaction kettle body 1, a driving device 2 is disposed at an upper end of the reaction kettle body 1, the driving device 2 includes a driving motor and a speed reducer, a stirring shaft 3 is vertically disposed in the reaction kettle body 1, the upper end of the stirring shaft 3 is rotatably connected to an output end of the speed reducer, a stirring blade 4 is disposed on the stirring shaft 3, the driving motor is started, the driving motor drives the speed reducer to operate, and the speed reducer drives the stirring shaft 3 and the stirring blade 4 to rotate to stir reaction liquid in the reaction kettle body 1; a cylindrical through hole is formed in the middle of the bottom wall of the reaction kettle body 1, a gas dispersion disc 5 is arranged in the cylindrical through hole, the gas dispersion disc 5 is of a hollow structure, breathable micropores 501 leading to the inside of the gas dispersion disc 5 are distributed on the upper end face of the gas dispersion disc 5, the upper end face of the gas dispersion disc 5 is flush with the upper end face of the bottom wall of the reaction kettle body 1, the lower end of the gas dispersion disc 5 is positioned below the bottom wall of the reaction kettle body 1, a gas adding pipe 6 leading to the inside of the gas dispersion disc 5 is arranged on the side wall of the disc body, below the reaction kettle body 1, of the gas dispersion disc 5, one end of the gas adding pipe 6 is positioned inside the gas dispersion disc 5, and the; be provided with glass silk group 7 in the inside cavity of gas dispersion dish 5, glass silk group 7 is provided with groove structure towards one side of gas filler 6, and gas filler 6 is arranged in the groove structure that gas dispersion dish 5 inside one end inserted glass silk group 7.

The utility model discloses a theory of operation: the pipeline that provides chlorine is linked together with gas filling pipe 6, carries chlorine in to gas dispersion dish 5 through gas filling pipe 6, and chlorine is got into gas dispersion dish 5 by the one end that gas filling pipe 6 inserted among the groove structure of glass silk group 7, is dispersed for the first time under the effect of glass silk group 7, then in the reaction solution that gets into reation kettle body 1 after the effect of the ventilative micropore 501 that sets up on gas dispersion dish 5 up end by the secondary dispersion, so to the utility model discloses the chlorine that adds is in the dispersed entering reaction solution, has reduced chlorine and the required time of reaction solution misce bene, has reduced production time, has improved production efficiency.

Please refer to fig. 3 and 4, in the embodiment of the present invention, one end of the gas adding pipe 6 located outside the gas dispersing plate 5 is provided with the check valve 17, the other end of the check valve 17 is connected with the gas pipe connector 8, the pipeline for adding chlorine outside is connected with the gas pipe connector 8, chlorine enters the gas dispersing plate 5 from the pipeline for adding chlorine outside, the gas pipe 8, the check valve 17 and the gas adding pipe 6 in sequence, and the check valve 17 has the function of preventing the reaction liquid from reversely flowing into the pipeline for adding chlorine.

Referring to fig. 1 and 2, in the embodiment of the present invention, a through hole leading to the inside of the gas dispersion plate 5 is formed on the bottom wall of the gas dispersion plate, and a discharging pipe 9 is installed on the through hole, a discharging valve 10 is arranged on the discharging pipe 9, after the production is finished, discharging is needed, the reaction liquid in the reaction kettle body 1 is processed by a discharging mechanism of the reaction kettle body 1, and the reaction liquid in the gas dispersion plate 5 is discharged through the discharging valve 10, so as to avoid pollution to the reaction liquid in the next production; when the inside of the reactor body 1 is cleaned, the cleaning water introduced into the gas distribution plate 5 is also discharged through the discharge valve 10.

Referring to fig. 1, in the embodiment of the present invention, a plurality of baffles 11 are disposed on the inner bottom wall of the gas dispersing plate 5, the glass filament group 7 is located inside each baffle 11, and the baffles 11 are used for fixing the glass filament group 7, so as to prevent the glass filament group 7 from being washed away by the impact of chlorine gas in the process of adding chlorine gas, thereby affecting the dispersion effect of chlorine gas.

Referring to fig. 1, in the embodiment of the present invention, the side wall of the reaction kettle body 1 is a double-layer structure, and includes an inner wall 101, an outer wall 102, and a hollow layer 103 between the inner wall 101 and the outer wall 102, the lower part and the upper part of the outer wall 102 are respectively provided with a water inlet pipe 12 and a water outlet pipe 13 leading to the hollow layer 103, during the production of chloroacetyl chloride, a certain reaction temperature is required, hot water at the production process temperature of chloroacetyl chloride is input into the hollow layer 103 through the water inlet pipe 12, and the temperature of the reaction solution is adjusted by a water bath heating method.

Referring to fig. 1 and fig. 2, in the embodiment of the present invention, the sidewall of the reaction kettle body 1 is provided with the sampling tube 14 leading to the inside of the reaction kettle body, the sampling tube 14 is disposed at the middle position of the sidewall of the reaction kettle body 1, the sampling tube 14 is provided with the sampling valve 15, in the production process of chloroacetyl chloride, a sampling analysis reaction process is required, and the sampling tube 14 and the sampling valve 15 are disposed so that the sampling analysis is more convenient.

Referring to fig. 2, in the embodiment of the present invention, the sidewall of the reaction kettle body 1 is provided with the observation port, the observation port is provided with the observation window 16 made of transparent material, the reaction process of chloroacetyl chloride can be determined to a certain extent by the color of the reaction solution, and the color of the reaction solution is observed through the observation window 16, so that the sampling frequency can be reduced, the material waste can be reduced, and the labor intensity of workers can be reduced.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a chlorine adds even reation kettle for chloroacetyl chloride production, includes reation kettle body (1), the upper end of reation kettle body (1) is provided with drive arrangement (2), vertically be provided with (mixing) shaft (3) in reation kettle body (1), the upper end of (mixing) shaft (3) rotates with drive arrangement (2) and links to each other, is provided with stirring vane (4) on (mixing) shaft (3), its characterized in that, the diapire middle part of reation kettle body (1) is provided with cylindrical through-hole, set up gas dispersion dish (5) in the cylindrical through-hole, gas dispersion dish (5) are hollow structure, spread all over on the up end of gas dispersion dish (5) and access to ventilative micropore (501) inside gas dispersion dish (5), the up end of gas dispersion dish (5) is the same level as the up end of reation kettle body (1) diapire, the lower end of the gas dispersion plate (5) is positioned below the bottom wall of the reaction kettle body (1), a gas adding pipe (6) leading to the inside of the gas dispersion plate (5) is arranged on the side wall of the plate body of the gas dispersion plate (5) positioned below the reaction kettle body (1), one end of the gas adding pipe (6) is positioned inside the gas dispersion plate (5), and the other end of the gas adding pipe is positioned outside the gas dispersion plate (5); be provided with glass silk group (7) in the inside cavity of gas dispersion dish (5), one side that glass silk group (7) orientation gas filling pipe (6) is provided with groove structure, gas filling pipe (6) are located the inside one end of gas dispersion dish (5) and insert in the groove structure of glass silk group (7).

2. The reaction kettle for producing chloroacetyl chloride with uniform chlorine addition according to claim 1, wherein one end of said gas adding pipe (6) located outside said gas dispersing disk (5) is provided with a one-way valve (17), and another end of said one-way valve (17) is connected to a gas pipe connector (8).

3. The reaction kettle for producing chloroacetyl chloride with uniform chlorine addition according to claim 2, wherein the bottom wall of said gas dispersion plate (5) is provided with a through hole leading to the interior thereof, and a discharging tube (9) is installed on the through hole, and a discharging valve (10) is installed on said discharging tube (9).

4. The reaction kettle for producing chloroacetyl chloride with uniform chlorine addition according to claim 1, wherein a plurality of baffles (11) are disposed on the inner bottom wall of said gas dispersion plate (5), and said glass fiber clusters (7) are located inside each baffle (11).

5. The reaction kettle for uniformly adding chloroacetyl chloride to chlorine gas of any one of claims 1 to 4, wherein the side wall of the reaction kettle body (1) is a double-layer structure comprising an inner wall (101), an outer wall (102) and a hollow layer (103) between the inner wall (101) and the outer wall (102), and the lower part and the upper part of the outer wall (102) are respectively provided with a water inlet pipe (12) and a water outlet pipe (13) leading to the hollow layer (103).

6. The reaction kettle for uniformly adding chloroacetyl chloride according to any one of claims 1 to 4, wherein a sampling tube (14) leading to the interior of the reaction kettle body (1) is disposed on the sidewall of the reaction kettle body (1), the sampling tube (14) is disposed at the middle position of the sidewall of the reaction kettle body (1), and a sampling valve (15) is disposed on the sampling tube (14).

7. The reaction kettle for producing chloroacetyl chloride with uniform chlorine addition according to claim 6, wherein the side wall of the reaction kettle body (1) is provided with an observation port, and the observation port is provided with an observation window (16) made of transparent material.