CN217368175U

CN217368175U - Refined washing kettle for 4, 4' -dichloromethyl biphenyl

Info

Publication number: CN217368175U
Application number: CN202220220161.1U
Authority: CN
Inventors: 崔立安; 韩占杰; 王雨龙; 姚志永
Original assignee: Xinji Chengyu Chemical Co ltd
Current assignee: Xinji Chengyu Chemical Co ltd
Priority date: 2022-01-26
Filing date: 2022-01-26
Publication date: 2022-09-06
Anticipated expiration: 2032-01-26

Abstract

The utility model discloses a refined washing kettle for 4, 4' -dichloromethyl biphenyl, including the washing kettle body, the upper end of washing kettle body is provided with the feed inlet, and the lower extreme of washing kettle body is provided with the liquid outlet, and the motor is installed to the top of washing kettle body, and the motor is connected with the (mixing) shaft, and the lower extreme of (mixing) shaft is located the washing kettle body, is provided with rabbling mechanism on the (mixing) shaft; the outer side wall of the washing kettle body is provided with an air pipe, the upper end of the air pipe is connected with the upper part of the washing kettle body, the lower end of the air pipe is connected with the bottom of the washing kettle body, and an air pump is arranged on the air pipe; the outer side wall of the washing kettle body is provided with a circulating pipe, the upper end of the circulating pipe is connected with the upper part of the washing kettle body, the lower end of the circulating pipe is connected with the bottom of the washing kettle body, and the circulating pipe is provided with a circulating pump; the utility model improves the solution mixing efficiency and the washing effect; the washing water can be repeatedly used, the product purity is improved, the production cost is reduced, and the environmental pollution is reduced.

Description

Refined washing kettle for 4, 4' -dichloromethyl biphenyl

Technical Field

The utility model relates to a chemical industry equipment technical field especially relates to a 4, 4' -dichloro methyl biphenyl is with refined washing cauldron.

Background

All can use the washing cauldron on the production line of chemical products. Adding washing liquid into a washing kettle filled with solid raw materials or products, and fully washing by a stirring device in the washing kettle; after standing, separating impurities dissolved in the washing liquid; the purity of the product is improved by the processes of repeatedly feeding water, stirring, standing and dividing water.

When 4, 4' -dichloromethyl biphenyl (BCMB) is prepared, a toluene solution is pumped into a refined washing kettle, then a BCMB crude product is added, the BCMB crude product is stirred and dissolved, water is added, the solution is washed for a plurality of times, and wastewater is discharged into a sewage treatment system, but the process has the problems of large water consumption, high cost, long washing time and the like; the density difference of the washing water and the toluene solution is large, and when the washing water and the toluene solution are stirred, the liquids are layered or need to be mixed for a long time, so that the washing efficiency is influenced; and the washing kettle is used for a long time, impurities and organic solvents are attached to the inner wall of the kettle body, the washing is not clean, and subsequent products are polluted.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a refined washing kettle for 4, 4' -dichloromethyl biphenyl aiming at the defects of the prior art.

In order to solve the above problems, the utility model adopts the following technical scheme:

a refined washing kettle for 4, 4' -dichloromethyl biphenyl comprises a washing kettle body, wherein a feed inlet is formed in the upper end of the washing kettle body, a liquid outlet is formed in the lower end of the washing kettle body, a motor is mounted above the washing kettle body and connected with a stirring shaft, the lower end of the stirring shaft is located in the washing kettle body, and a stirring mechanism is arranged on the stirring shaft; an air pipe is arranged on the outer side wall of the washing kettle body, the upper end of the air pipe is connected with the upper part of the washing kettle body, the lower end of the air pipe is connected with the bottom of the washing kettle body, and an air pump is arranged on the air pipe; the outer side wall of the washing kettle body is provided with a circulating pipe, the upper end of the circulating pipe is connected with the upper portion of the washing kettle body, the lower end of the circulating pipe is connected with the bottom of the washing kettle body, and the circulating pipe is provided with a circulating pump.

Further, the lower end of the air pipe is provided with an air nozzle, and the air nozzle is positioned at the bottom of the washing kettle body.

Furthermore, a plurality of liquid spraying heads are arranged at the upper end of the circulating pipe and are positioned at the top of the washing kettle body.

Furthermore, the liquid outlet is provided with a liquid outlet control valve, the air pipe is provided with an air inlet control valve, and the circulating pipe is provided with a circulating control valve.

Further, purifier on the circulating pipe, purifier includes purifying water tank, purifying water tank's upper end pass through the feed liquor pipe with the circulating pipe lower extreme is connected, purifying water tank's bottom pass through the drain pipe with the circulating pump is connected, be provided with the scavenging pump on the feed liquor pipe, be provided with the liquid purification control valve on the drain pipe.

Further, by last first purification mechanism and the second purification mechanism that has set gradually under to in the water purification tank, first purification mechanism including the level set up in filter screen in the water purification tank, the second purification mechanism includes the cartridge filter of a plurality of vertical settings, the upper end opening of cartridge filter, lower extreme are provided with the separation net, be provided with the active carbon in the cartridge filter.

Furthermore, a heating device is arranged on the outer side wall of the washing kettle body.

Furthermore, a heat-insulating layer is arranged on the outer side wall of the washing kettle.

Further, the top of the washing kettle body is connected with a condenser through a condensing pipe, and the lower end of the condenser is provided with a recovery tank.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:

the utility model circulates the liquid through the stirring mechanism, the air pump blowing and the circulating pump, fully stirs and mixes the mixed liquid in the washing kettle body, and improves the solution mixing efficiency and the washing effect; the sewage generated by washing can be pumped into a purification device for filtration and purification, and can be recycled, so that the product purity is improved, the production cost is reduced, and the environmental pollution is reduced; the utility model arranges a heating device and a heat-insulating layer on the outer side wall of the washing kettle body, which can heat the liquid in the kettle body and improve the dissolving efficiency and the dissolving amount; the utility model discloses still set up the condenser and retrieve the jar, can carry out the condensation to volatile organic solvent and retrieve, avoid extravagant and polluted environment.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. washing the kettle body with water; 2. a feed inlet; 3. a liquid outlet; 4. a motor; 5. a stirring shaft; 6. an air pipe;

7. an air pump; 8. a circulation pipe; 9. a circulation pump; 10. a gas showerhead; 11. a liquid jet head; 12. a liquid outlet control valve; 13. an air intake control valve; 14. a circulation control valve; 15. a purified water tank; 16. a liquid inlet pipe;

17. a liquid outlet pipe; 18. a purge pump; 19. a clean liquid control valve; 20. a filter screen; 21. a filter cartridge;

22. activated carbon; 23. a heating device; 24. a heat-insulating layer; 25. a condenser; 26. and (7) a recovery tank.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1, the refined washing kettle for 4, 4' -dichloromethyl biphenyl of the present invention comprises a washing kettle body 1, wherein a feed inlet 2 is arranged at the upper end of the washing kettle body 1, a liquid outlet 3 is arranged at the lower end of the washing kettle body 1, a motor 4 is arranged above the washing kettle body 1, the motor 4 is connected with a stirring shaft 5, the lower end of the stirring shaft 5 is positioned in the washing kettle body 1, and a stirring mechanism is arranged on the stirring shaft 5; an air pipe 6 is arranged on the outer side wall of the washing kettle body 1, the upper end of the air pipe 6 is connected with the upper part of the washing kettle body 1, the lower end of the air pipe 6 is connected with the bottom of the washing kettle body 1, an air pump 7 is arranged on the air pipe 6, air is blown into the washing kettle body 1 by starting the air pump 7, liquid in the kettle body is enabled to roll, and the air pump is matched with a stirring mechanism, so that washing liquid and an organic solvent can be uniformly mixed, and the mixing efficiency is improved; be provided with circulating pipe 8 on washing cauldron body 1's the lateral wall, circulating pipe 8's upper end with washing cauldron body 1's upper portion is connected, circulating pipe 8's lower extreme with washing cauldron body 1's bottom is connected, be provided with circulating pump 9 on the circulating pipe 8, start circulating pump 9, circulating pump 9 carries the internal mixed solution of cauldron to the top of the cauldron body and sprays again, is favorable to the quick homogeneous mixing of solution of density difference, improves mixing efficiency and washing effect.

Furthermore, the lower extreme of trachea 6 can set up one or more jet head 10, jet head 10 is located wash kettle body 1's bottom, jets the gas to the mixed liquid.

Further, a plurality of liquid spraying heads 11 are arranged at the upper end of the circulating pipe 8, the liquid spraying heads 11 are located at the top of the washing kettle body 1, and the mixed liquid is conveyed to the top of the kettle body and is uniformly dispersed.

Further, the liquid outlet 3 is provided with a liquid outlet control valve 12, the gas pipe 6 is provided with a gas inlet control valve 13, and the circulating pipe 8 is provided with a circulating control valve 14.

Further, purifier on circulating pipe 8, purifier includes purifying water tank 15, purifying water tank 15's upper end through feed liquor pipe 16 with the circulating pipe 8 lower extreme is connected, purifying water tank 15's bottom through drain pipe 17 with circulating pump 9 is connected, be provided with purifying pump 18 on the feed liquor pipe 16, be provided with liquid purification control valve 19 on the drain pipe 17. After the washing is finished, the washing liquid with high density at the bottom of the kettle body is pumped into the water purifying tank 15, impurities and a small amount of organic solvent in the washing liquid are filtered, the relatively clean washing liquid is obtained, and the washing liquid can be recycled, so that the production cost is reduced, and the environmental pollution is reduced.

Further, by last first purification mechanism and the second purification mechanism of having set gradually under to in the purified water tank 15, first purification mechanism include the level set up in filter screen 20 in purified water tank 15 filters impurity, particulate matter in the washing liquid, the second purifies the mechanism and includes the cartridge filter 21 of a plurality of vertical settings, cartridge filter 21's upper end opening, lower extreme are provided with the separation net, be provided with active carbon 22 in the cartridge filter 21, adopt a small amount of organic solvent of active carbon 21 adsorption-washing liquid in the mixture, adsorb saturated active carbon accessible certain condition and handle, make its desorption regeneration, repeatedly usable reduces manufacturing cost. The purification device has high filtration efficiency and good filtration effect.

Further, the level is provided with the backup pad in the purified water tank 15, has seted up the hole in the backup pad, and the tubaeform opening has been seted up to cartridge filter 21's upper end, and cartridge filter 21 erects in the backup pad, and the installation is dismantled convenient and fast, is convenient for wash.

Further, be provided with heating device 23 on the lateral wall of washing cauldron body 1, can improve dissolving efficiency and dissolving amount to the mixed solution heating in washing cauldron body 1.

Furthermore, the outer side wall of the washing kettle is provided with a heat insulation layer 24, so that heat loss is reduced.

Further, wash cauldron body 1 top and be connected with condenser 25 through the condenser pipe, the lower extreme of condenser 25 is provided with recovery tank 26, can retrieve the volatile organic solvent of heating, the cooling, reuse to avoid the polluted environment.

Furthermore, a transparent window is arranged on the side wall of the washing kettle body 1, so that the liquid level in the kettle body can be seen.

The utility model discloses during the use, add toluene and BCMB crude product in washing cauldron body 1, stirring solution, then add the washing water again, starting motor 4 stirs, open into air control valve 13, air pump 7, circulation control valve 14 and circulating pump 9, make the internal mixed liquid of cauldron under the three effect of rabbling mechanism, gas blowing and liquid upper and lower circulation, efficient misce bene, after the washing is accomplished, close into air control valve 13, air pump 7, circulation control valve 14 and circulating pump 9, make it layering that stews, the washing water density is great at the lower floor, then open circulation control valve 14 and purge pump 18, make the washing water pump of lower floor go into in purifying water tank 15, filtration purification, upper organic solvent pumps into the crystallization cauldron through liquid outlet 3; it has one deck organic solvent to adhere to on the lateral wall of washing cauldron body 1, can be earlier to the cauldron body heating, makes organic solvent volatilize, is condensed by condenser 25, flows into in the recovery tank 26, opens liquid purification control valve 19 and circulating pump 9 again, uses the water that purifies in the purified water tank 15, washes cauldron internal wall, guarantees that cauldron internal wall is clean, avoids used repeatedly, and liquid is remained many times, the pollution product.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.

Claims

1. A refined washing kettle for 4, 4' -dichloromethyl biphenyl comprises a washing kettle body (1), wherein a feeding hole (2) is formed in the upper end of the washing kettle body (1), a liquid outlet (3) is formed in the lower end of the washing kettle body (1), a motor (4) is installed above the washing kettle body (1), the motor (4) is connected with a stirring shaft (5), the lower end of the stirring shaft (5) is located in the washing kettle body (1), and a stirring mechanism is arranged on the stirring shaft (5); the washing kettle is characterized in that an air pipe (6) is arranged on the outer side wall of the washing kettle body (1), the upper end of the air pipe (6) is connected with the upper part of the washing kettle body (1), the lower end of the air pipe (6) is connected with the bottom of the washing kettle body (1), and an air pump (7) is arranged on the air pipe (6); be provided with circulating pipe (8) on the lateral wall of washing cauldron body (1), the upper end of circulating pipe (8) with the upper portion of washing cauldron body (1) is connected, the lower extreme of circulating pipe (8) with the bottom of washing cauldron body (1) is connected, be provided with circulating pump (9) on circulating pipe (8).

2. The refined washing kettle for 4, 4' -dichloromethyl biphenyl of claim 1, wherein the lower end of the gas pipe (6) is provided with a gas nozzle (10), and the gas nozzle (10) is positioned at the bottom of the washing kettle body (1).

3. The refined washing kettle for 4, 4' -dichloromethyl biphenyl as claimed in claim 1, wherein the upper end of the circulating pipe (8) is provided with a plurality of liquid spraying heads (11), and the liquid spraying heads (11) are positioned at the top of the washing kettle body (1).

4. The refined water washing kettle for 4, 4' -bischloromethylbiphenyl according to claim 1, wherein said liquid outlet (3) is provided with a liquid outlet control valve (12), said gas pipe (6) is provided with a gas inlet control valve (13), and said circulating pipe (8) is provided with a circulating control valve (14).

5. The refining washing kettle for 4, 4' -dichloromethylbiphenyl according to claim 1, wherein the circulating pipe (8) is provided with a purification device, the purification device comprises a purification water tank (15), the upper end of the purification water tank (15) is connected with the lower end of the circulating pipe (8) through a liquid inlet pipe (16), the bottom of the purification water tank (15) is connected with the circulating pump (9) through a liquid outlet pipe (17), the liquid inlet pipe (16) is provided with a purification pump (18), and the liquid outlet pipe (17) is provided with a liquid purification control valve (19).

6. The refining water washing kettle for 4, 4' -dichloromethyl biphenyl of claim 5, wherein a first purification mechanism and a second purification mechanism are sequentially arranged in the purification water tank (15) from top to bottom, the first purification mechanism comprises a filter screen (20) horizontally arranged in the purification water tank (15), the second purification mechanism comprises a plurality of vertically arranged filter cartridges (21), a separation screen is arranged at the upper end opening and the lower end of each filter cartridge (21), and activated carbon (22) is arranged in each filter cartridge (21).

7. The refined washing kettle for 4, 4' -dichloromethylbiphenyl according to claim 1, wherein a heating device (23) is arranged on the outer side wall of the washing kettle body (1).

8. The refined washing kettle for 4, 4' -dichloromethyl biphenyl according to claim 7, wherein an insulating layer (24) is arranged on the outer side wall of the washing kettle.

9. The refined washing kettle for 4, 4' -dichloromethylbiphenyl according to claim 7, wherein the top of the washing kettle body (1) is connected with a condenser (25) through a condensing tube, and the lower end of the condenser (25) is provided with a recovery tank (26).