CN212881133U

CN212881133U - Novel diphenylsulfone production is with fractional crystallization ware

Info

Publication number: CN212881133U
Application number: CN202021286782.7U
Authority: CN
Inventors: 严留新; 汤浩; 张海娟; 韩维鹏
Original assignee: Sino High China Co ltd
Current assignee: Sino High China Co ltd
Priority date: 2020-07-04
Filing date: 2020-07-04
Publication date: 2021-04-06
Anticipated expiration: 2030-07-04

Abstract

The utility model relates to a novel step crystallizer for diphenylsulfone production, which comprises a box body, a feed pipe, a discharge pipe, an exhaust pipe, a first water inlet pipe, a first water outlet pipe, a second water inlet pipe, a second water outlet pipe and a heat conducting plate; the heat conduction plates are arranged between the lower sides of the first water inlet pipe and the first water outlet pipe, and correspondingly, the heat conduction plates with the same number are also arranged between the lower sides of the second water inlet pipe and the second water outlet pipe; the utility model discloses a melt crystallization principle mesolamella formula crystallization mode utilizes diphenyl sulfone and impurity difference on the freezing point and the repeated diphenyl sulfone that appears and discharge impurity at this in-process, finally obtains high-purity diphenyl sulfone in order to realize the purification, simple structure, and convenient operation has reduced the energy consumption moreover by a wide margin.

Description

Novel diphenylsulfone production is with fractional crystallization ware

Technical Field

The utility model relates to a novel diphenylsulfone production is with fractional crystallization ware.

Background

Diphenyl sulfone is a common chemical substance, is often used as a plasticizer and an acaricide in organic synthesis, is also often used as an intermediate of medicines and pesticides, and is also an important high-temperature solvent required for industrially producing special engineering plastics, namely Polyaryletherketone (PAEK); the diphenyl sulfone takes benzene and benzene sulfonyl chloride as raw materials, and in an aromatic solvent, under the existence of a Lewis acid catalyst, the raw liquid of the diphenyl sulfone is obtained through stirring, refluxing, filtering, crystallizing and drying processes; the crystallization of the diphenyl sulfone needs to be carried out in a special crystallizer, the existing crystallizer mostly achieves the purpose of crystallization by evaporating a solvent, and the crystallizer has the disadvantages of complex structure, troublesome operation and high energy consumption, and is to be further improved.

SUMMERY OF THE UTILITY MODEL

To the current situation of above-mentioned prior art, the utility model aims to solve the technical problem that a simple structure is provided, convenient operation has reduced the novel diphenylsulfone production of energy consumption moreover by a wide margin and has used fractional crystallizer.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a novel step-by-step crystallizer for diphenylsulfone production is characterized by comprising a box body, a feeding pipe, a discharging pipe, an exhaust pipe, a first water inlet pipe, a first water outlet pipe, a second water inlet pipe, a second water outlet pipe and a heat conducting plate; the heat-conducting type water heater comprises a box body, a water inlet pipe, a water outlet pipe, a first water inlet pipe, a second water outlet pipe, a plurality of heat-conducting plates and a plurality of heat-conducting plates, wherein the water inlet pipe and the air outlet pipe are vertically and alternately fixed on the top of the box body and are mutually communicated with the inside of the box body; establish a plurality of heat-conducting plates between first inlet tube and the first outlet pipe and establish a plurality of heat-conducting plates between second inlet tube and the second outlet pipe are distributed at intervals each other.

Preferably, the heat conducting plate comprises a cavity, a water guide pipe, a first partition plate and a second partition plate; be fixed with a plurality of vertical and horizontal first baffles of arranging on the upside inner wall of cavity, correspondingly, be fixed with the vertical and horizontal second baffle of arranging of the same quantity on the downside inner wall of cavity, it is a plurality of the mutual interval distribution of second baffle and a plurality of first baffle, the upside interlude of cavity is fixed with two aqueducts, two the both sides of a plurality of first baffles are located respectively to the aqueduct and all communicate with each other with the inside of cavity, the downside of first baffle is less than the upside of second baffle.

Preferably, one of the water conduits in each heat-conducting plate is connected with the first water inlet pipe or the second water inlet pipe, and the other water conduit in each heat-conducting plate is connected with the first water outlet pipe or the second water outlet pipe.

Preferably, the device further comprises a first jacket; the first jacket is coated outside the periphery of the box body and forms a first interlayer with the box body, a plurality of third water inlet pipes are further arranged on the right side of the first jacket, each third water inlet pipe is communicated with the first interlayer, a plurality of third water outlet pipes are further arranged on the left side of the first jacket, and each third water outlet pipe is communicated with the first interlayer.

Preferably, the water tank further comprises a second jacket, the second jacket covers the outer side of the bottom of the tank body and forms a second interlayer with the tank body, a fourth water outlet pipe and a fourth water inlet pipe are further arranged on the left side and the right side of the second jacket respectively, and the fourth water outlet pipe and the fourth water inlet pipe are communicated with the second interlayer.

Compared with the prior art, the utility model has the advantages of: the utility model discloses a melt crystallization principle mesolamella formula crystallization mode utilizes diphenyl sulfone and impurity difference on the freezing point and the repeated diphenyl sulfone that appears and discharge impurity at this in-process, finally obtains high-purity diphenyl sulfone in order to realize the purification, simple structure, and convenient operation has reduced the energy consumption moreover by a wide margin.

Drawings

FIG. 1 is a right front structural view of the present invention;

fig. 2 is a structural diagram of the heat-conducting plate of the present invention.

Detailed Description

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

To maintain the following description of the embodiments of the present invention clear and concise, detailed descriptions of well-known functions and components may be omitted.

As shown in fig. 1-2, a novel step crystallizer for diphenylsulfone production comprises a box body 1, a feeding pipe 2, a discharging pipe 3, an exhaust pipe 4, a first water inlet pipe 5, a first water outlet pipe 6, a second water inlet pipe 7, a second water outlet pipe 8 and a heat conducting plate 9; the inlet pipe 2 and the exhaust pipe 4 are vertically inserted and fixed at the top of the box body 1 and are communicated with the inside of the box body 1, a slope 101 is formed at the bottom of the box body 1, the discharge pipe 3 is vertically inserted and fixed at the lower end of the slope 101 and is communicated with the inside of the box body 1, the first inlet pipe 5 and the first outlet pipe 6 are transversely sealed and inserted and fixed between the left end and the right end of the box body 1, the first inlet pipe 5 is arranged at the front side of the first outlet pipe 6, the second inlet pipe 7 and the second outlet pipe 8 are transversely sealed and inserted and fixed between the left end and the right end of the box body 1 and respectively arranged at the front sides of the first inlet pipe 5 and the first outlet pipe 6, a plurality of heat-conducting plates 9 are arranged between the lower sides of the first inlet pipe 5 and the first outlet pipe 6, and correspondingly, the same number of heat-; a plurality of heat-conducting plates 9 arranged between the first water inlet pipe 5 and the first water outlet pipe 6 and a plurality of heat-conducting plates 9 arranged between the second water inlet pipe 7 and the second water outlet pipe 8 are distributed at intervals; the heat conducting plate 9 comprises a cavity 93, a water conduit 91, a first partition plate 92 and a second partition plate 94; a plurality of first partition plates 92 which are vertically and transversely arranged are fixed on the inner wall of the upper side of the cavity 93, correspondingly, the inner wall of the lower side of the cavity 93 is fixed with a same number of second partition plates 94 which are vertically and transversely arranged, the plurality of second partition plates 94 and the plurality of first partition plates 92 are mutually distributed at intervals, two water guide pipes 91 are fixedly inserted on the upper side of the cavity 93 in an inserting manner, the two water guide pipes 91 are respectively arranged on two sides of the plurality of first partition plates 92 and are mutually communicated with the inside of the cavity 93, and the lower side of the first partition plate 92 is lower than the upper side of the second partition plates 94; one water guide pipe 91 in each heat conduction plate 9 is connected with the first water inlet pipe 5 or the second water inlet pipe 7, and the other water guide pipe 91 in each heat conduction plate 9 is connected with the first water outlet pipe 6 or the second water outlet pipe 8.

The novel step-by-step crystallizer for producing diphenyl sulfone also comprises a first jacket 10; the first jacket 10 covers the periphery of the box body 1, a first interlayer 15 is formed between the first jacket 10 and the box body 1, a plurality of third water inlet pipes 13 are further arranged on the right side of the first jacket 10, each third water inlet pipe 13 is communicated with the first interlayer 15, a plurality of third water outlet pipes 14 are further arranged on the left side of the first jacket 10, and each third water outlet pipe 14 is communicated with the first interlayer 15.

The novel step-type crystallizer for producing diphenyl sulfone further comprises a second jacket 16, the second jacket 16 is covered on the outer side of the bottom of the box body 1 and forms a second interlayer 17 with the box body 1, a fourth water outlet pipe 12 and a fourth water inlet pipe 11 are further arranged on the left side and the right side of the second jacket 16 respectively, and the fourth water outlet pipe 12 and the fourth water inlet pipe 11 are communicated with the second interlayer 17;

when in use, the diphenyl sulfone stock solution is introduced into the box body 1 through the feed pipe 2, so that each heat conducting plate 9 is wrapped and immersed by the diphenyl sulfone stock solution; introducing cooling water into the second water inlet pipe 7, and then entering each heat-conducting plate 9 arranged between the second water inlet pipe 7 and the second water outlet pipe 8, so as to cool the diphenyl sulfone stock solution wrapped outside each heat-conducting plate 9, when the temperature is lower than the freezing point of the diphenyl sulfone stock solution, the diphenyl sulfone stock solution is condensed into blocks, and the cooling water coming out of each heat-conducting plate 9 is discharged outwards through the second water outlet pipe 8 to form circulation; at this time, the cooling water can be introduced into the second interlayer 17 and the first interlayer 15 by the fourth water inlet pipe 11 and any one of the third water inlet pipes 13 and is discharged outwards by the fourth water outlet pipe 12 and any one of the third water outlet pipes 14 respectively to play a role in keeping the cold of the box body 1; then, stopping introducing cooling water into the second water inlet pipe 7, introducing hot water at a certain temperature into the first water inlet pipe 5, further heating the solid diphenylsulfone stock solution by a certain range by virtue of each heat-conducting plate 9 arranged between the first water inlet pipe 5 and the first water outlet pipe 6, so as to melt impurities with lower melting points of the solid diphenylsulfone stock solution, and further enabling the impurities to fall to the bottom of the box body 1, further flow to the discharge pipe 3 along the slope 101, finally, outwards discharge the impurities through the discharge pipe 3, and outwards discharge the hot water from each heat-conducting plate 9 through the first water outlet pipe 6 to form circulation; in the process, hot water can be introduced into the second interlayer 17 and the first interlayer 15 through the fourth water inlet pipe 11 and any one of the third water inlet pipes 13 and is discharged outwards through the fourth water outlet pipe 12 and any one of the third water outlet pipes 14 respectively so as to play a role in heat preservation of the box body 1; after the impurities are separated out for the first time, heating hot water introduced into the first water inlet pipe 5 to a temperature higher than the melting point of the diphenyl sulfone, further completely melting the solid of the diphenyl sulfone stock solution, then performing cooling solidification and heating separation for the second time, and finally outputting the high-purity diphenyl sulfone stock solution outwards through the discharge pipe 3 after repeated times; the exhaust gas generated during the heating process can be discharged to the outside through the exhaust pipe 4.

The utility model discloses a melt crystallization principle mesolamella formula crystallization mode utilizes diphenyl sulfone and impurity difference on the freezing point and the repeated diphenyl sulfone that appears and discharge impurity at this in-process, finally obtains high-purity diphenyl sulfone in order to realize the purification, simple structure, and convenient operation has reduced the energy consumption moreover by a wide margin.

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 will be understood by those skilled in the art that various changes in the embodiments and modifications thereof may be made, and equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A novel step-by-step crystallizer for diphenylsulfone production is characterized by comprising a box body, a feeding pipe, a discharging pipe, an exhaust pipe, a first water inlet pipe, a first water outlet pipe, a second water inlet pipe, a second water outlet pipe and a heat conducting plate; the heat-conducting type water heater comprises a box body, a water inlet pipe, a water outlet pipe, a first water inlet pipe, a second water outlet pipe, a plurality of heat-conducting plates and a plurality of heat-conducting plates, wherein the water inlet pipe and the air outlet pipe are vertically and alternately fixed on the top of the box body and are mutually communicated with the inside of the box body; establish a plurality of heat-conducting plates between first inlet tube and the first outlet pipe and establish a plurality of heat-conducting plates between second inlet tube and the second outlet pipe are distributed at intervals each other.

2. The novel fractional crystallizer for diphenylsulfone production of claim 1, wherein said heat conducting plate comprises a cavity, a water conduit, a first partition plate and a second partition plate; be fixed with a plurality of vertical and horizontal first baffles of arranging on the upside inner wall of cavity, correspondingly, be fixed with the vertical and horizontal second baffle of arranging of the same quantity on the downside inner wall of cavity, it is a plurality of the mutual interval distribution of second baffle and a plurality of first baffle, the upside interlude of cavity is fixed with two aqueducts, two the both sides of a plurality of first baffles are located respectively to the aqueduct and all communicate with each other with the inside of cavity, the downside of first baffle is less than the upside of second baffle.

3. The fractional crystallizer of claim 2, wherein one of said conduits of each heat conducting plate is connected to a first inlet pipe or a second inlet pipe, and the other conduit of each heat conducting plate is connected to a first outlet pipe or a second outlet pipe.

4. The fractional crystallizer for the production of diphenyl sulfone as claimed in claim 1, further comprising a first jacket; the first jacket is coated outside the periphery of the box body and forms a first interlayer with the box body, a plurality of third water inlet pipes are further arranged on the right side of the first jacket, each third water inlet pipe is communicated with the first interlayer, a plurality of third water outlet pipes are further arranged on the left side of the first jacket, and each third water outlet pipe is communicated with the first interlayer.

5. The novel stepwise crystallizer for producing diphenyl sulfone as claimed in claim 1, further comprising a second jacket, wherein the second jacket covers the outside of the bottom of the box body and forms a second interlayer with the box body, the left and right sides of the second jacket are further provided with a fourth water outlet pipe and a fourth water inlet pipe, respectively, and the fourth water outlet pipe and the fourth water inlet pipe are communicated with the second interlayer.