CN213466856U - Continuous dewatering device of solvent for production of high-purity acetophenone - Google Patents
Continuous dewatering device of solvent for production of high-purity acetophenone Download PDFInfo
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- CN213466856U CN213466856U CN202021283545.5U CN202021283545U CN213466856U CN 213466856 U CN213466856 U CN 213466856U CN 202021283545 U CN202021283545 U CN 202021283545U CN 213466856 U CN213466856 U CN 213466856U
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Abstract
The utility model relates to a continuous dehydration device of solvent for producing high-purity acetophenone, which comprises a dehydration tower, a liquid inlet pipe, a first water outlet pipe, a liquid conveying pipe, an adsorption tower, an adsorbent bag and a second water outlet pipe; one end of a liquid inlet pipe is connected to one side of the dehydration tower and is communicated with the inside of the dehydration tower, a flow meter and an adjusting valve are sequentially arranged on the liquid inlet pipe along the material flowing direction, a first water outlet pipe is vertically and alternately fixed at the bottom of the dehydration tower and is communicated with the inside of the dehydration tower, and a first online densimeter and a first control valve are sequentially arranged on the first water outlet pipe along the material flowing direction; the utility model discloses need not manual operation and just can carry out dewatering work automatically, turn the numerous and diverse into simple, improved work efficiency, labour saving and time saving.
Description
Technical Field
The utility model relates to a continuous dewatering device of solvent for high-purity acetophenone production.
Background
Acetophenone is commonly used for preparing toilet soap and cigarettes, is also used as a solvent for cellulose ester, resin and the like and a plasticizer in the industrial production of plastics, and can be prepared by the reaction of benzene and acetic anhydride, or by the oxidation of ethylbenzene, or by the Friedel-crafts reaction of acetyl chloride and benzene under the action of aluminum trichloride; the method is characterized in that a solvent is required to be added when the acetophenone is prepared by the Friedel-crafts reaction, and the solvent is often carried with more moisture, and because the water cannot be added in the Friedel-crafts reaction, the acetophenone yield is low and even safety accidents occur, so the solvent must be dehydrated; the existing solvent dehydration device has the advantages of low automation degree, complex operation, complex steps, time and labor waste, low working efficiency and waiting for further improvement, and can be operated by manual operation.
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 need not manual operation just can automatic work, and then has improved work efficiency, turns into bustling, labour saving and time saving's continuous dewatering device of solvent for high-purity acetophenone production.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: a continuous solvent dehydration device for producing high-purity acetophenone is characterized by comprising a dehydration tower, a liquid inlet pipe, a first water outlet pipe, a liquid conveying pipe, an adsorption tower, an adsorbent bag and a second water outlet pipe; one end of the liquid inlet pipe is connected to one side of the dehydration tower and is communicated with the inside of the dehydration tower, a flow meter and an adjusting valve are sequentially arranged on the liquid inlet pipe along the material flowing direction, the first water outlet pipe is vertically and alternately fixed at the bottom of the dehydration tower and is communicated with the inside of the dehydration tower, and a first online densimeter and a first control valve are sequentially arranged on the first water outlet pipe along the material flowing direction; the top of dehydration tower and communicate each other with the inside of dehydration tower are connected to the one end of transfer line, adsorbent bag detachable locates in the adsorption tower, the other end of transfer line is connected in one side of adsorption tower and communicates each other and locate the below of adsorbent bag with the inside of adsorption tower, the vertical interlude of second outlet pipe is fixed in the adsorption tower bottom and communicates each other with the inside of adsorption tower, along material flow direction set gradually second on-line densimeter and second control valve on the second outlet pipe, top one side of adsorption tower still is equipped with the liquid outlet.
Preferably, the online densimeter further comprises a first sight glass and a second sight glass, wherein the first sight glass and the second sight glass are respectively arranged on the first water outlet pipe and the second water outlet pipe and are respectively arranged on the upstream sides of the first online densimeter and the second online densimeter.
Preferably, the water purifier further comprises a first valve and a second valve, wherein the first valve and the second valve are respectively arranged on the first water outlet pipe and the second water outlet pipe and are respectively arranged on the downstream sides of the first control valve and the second control valve.
Compared with the prior art, the utility model has the advantages of: the utility model discloses need not manual operation and just can carry out dewatering work automatically, turn the numerous and diverse into simple, improved work efficiency, labour saving and time saving.
Drawings
Fig. 1 is a schematic structural diagram 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, a continuous dehydration device for a solvent for producing high-purity acetophenone comprises a dehydration tower 1, a liquid inlet pipe 3, a first water outlet pipe 6, a liquid conveying pipe 11, an adsorption tower 2, an adsorbent bag 13 and a second water outlet pipe 14; one end of a liquid inlet pipe 3 is connected to one side of the dehydration tower 1 and is communicated with the inside of the dehydration tower 1, a flow meter 4 and an adjusting valve 5 are sequentially arranged on the liquid inlet pipe 3 along the material flowing direction, a first water outlet pipe 6 is vertically and alternately fixed at the bottom of the dehydration tower 1 and is communicated with the inside of the dehydration tower 1, and a first online densimeter 8 and a first control valve 9 are sequentially arranged on the first water outlet pipe 6 along the material flowing direction; the one end of transfer line 11 is connected at the top of dehydration tower 1 and communicates each other with the inside of dehydration tower 1, adsorbent bag 13 detachable locates in adsorption tower 2, the other end of transfer line 11 is connected in one side of adsorption tower 2 and communicates each other and locate the below of adsorbent bag 13 with the inside of adsorption tower 2, the vertical interlude of second outlet pipe 14 is fixed in adsorption tower 2 bottom and communicates each other with the inside of adsorption tower 2, set gradually second on-line densimeter 16 and second control valve 17 along the material flow direction on the second outlet pipe 14, top one side of adsorption tower 2 is equipped with liquid outlet 19.
The continuous solvent dehydrating device for producing the high-purity acetophenone further comprises a first sight glass 7 and a second sight glass 15, wherein the first sight glass 7 and the second sight glass 15 are respectively arranged on a first water outlet pipe 6 and a second water outlet pipe 14 and are respectively arranged on the upstream sides of a first online densimeter 8 and a second online densimeter 16.
A continuous solvent dehydration device for producing high-purity acetophenone also comprises a first valve 10 and a second valve 12, wherein the first valve 10 and the second valve 12 are respectively arranged on a first water outlet pipe 6 and a second water outlet pipe 14 and are respectively arranged at the downstream side of a first control valve 9 and a second control valve 17.
When the device is used, acetophenone stock solution is introduced into the dehydration tower 1 through the liquid inlet pipe 3, the flow meter 4 is set with a flow rate to automatically control the opening degree of the regulating valve 5, so that the solvent is fed at a constant speed, after the first valve 10 is opened, the aqueous solvent dehydrated from the dehydration tower 1 is discharged outwards through the first water outlet pipe 6, the first online densimeter 8 can monitor the density of the aqueous solvent in real time, once the acetophenone is lost due to exceeding the standard, the first online densimeter 8 can automatically control the first control valve 9 to be closed so as to cut off the output of the aqueous solvent; the acetophenone liquid without the water solvent is introduced into the adsorption tower 2 through the liquid conveying pipe 11, the acetophenone liquid level in the adsorption tower 2 continuously rises along with the continuous input of the acetophenone liquid until the adsorption bag 13 is immersed, when the acetophenone liquid flows through the adsorption bag 13, the adsorption bag 13 can prevent the acetophenone from entering the top of the adsorption tower 2 through the adsorption bag 13 without blocking the residual water-containing solvent in the acetophenone liquid, finally the water-containing solvent is discharged outwards through the liquid outlet 19, after a certain time, the second valve 12 is opened, the high-purity acetophenone in the adsorption tower 2 is discharged outwards through the second water outlet pipe 14, and therefore the dehydration and purification of the acetophenone are completed; the first sight glass 7 can be used for observing the flowing condition of the aqueous solvent in the first water outlet pipe 6, and the second sight glass 15 can be used for observing the flowing condition of the acetophenone liquid in the second water outlet pipe 14.
The utility model discloses need not manual operation and just can carry out dewatering work automatically, turn the numerous and diverse into simple, improved work efficiency, labour saving and time saving.
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 (3)
1. A continuous solvent dehydration device for producing high-purity acetophenone is characterized by comprising a dehydration tower, a liquid inlet pipe, a first water outlet pipe, a liquid conveying pipe, an adsorption tower, an adsorbent bag and a second water outlet pipe; one end of the liquid inlet pipe is connected to one side of the dehydration tower and is communicated with the inside of the dehydration tower, a flow meter and an adjusting valve are sequentially arranged on the liquid inlet pipe along the material flowing direction, the first water outlet pipe is vertically and alternately fixed at the bottom of the dehydration tower and is communicated with the inside of the dehydration tower, and a first online densimeter and a first control valve are sequentially arranged on the first water outlet pipe along the material flowing direction; the top of dehydration tower and communicate each other with the inside of dehydration tower are connected to the one end of transfer line, adsorbent bag detachable locates in the adsorption tower, the other end of transfer line is connected in one side of adsorption tower and communicates each other and locate the below of adsorbent bag with the inside of adsorption tower, the vertical interlude of second outlet pipe is fixed in the adsorption tower bottom and communicates each other with the inside of adsorption tower, along material flow direction set gradually second on-line densimeter and second control valve on the second outlet pipe, top one side of adsorption tower still is equipped with the liquid outlet.
2. The continuous solvent dehydration device for the production of high purity acetophenone of claim 1 further comprising a first sight glass and a second sight glass, said first sight glass and said second sight glass are respectively disposed on the first water outlet pipe and said second water outlet pipe and are respectively disposed on the upstream side of the first on-line densimeter and said second on-line densimeter.
3. The continuous solvent dehydration device for the production of high purity acetophenone of claim 1 further comprising a first valve and a second valve, said first valve and second valve being respectively disposed on the first outlet pipe and the second outlet pipe and being respectively disposed on the downstream side of the first control valve and the second control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021283545.5U CN213466856U (en) | 2020-07-04 | 2020-07-04 | Continuous dewatering device of solvent for production of high-purity acetophenone |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021283545.5U CN213466856U (en) | 2020-07-04 | 2020-07-04 | Continuous dewatering device of solvent for production of high-purity acetophenone |
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| CN213466856U true CN213466856U (en) | 2021-06-18 |
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| CN202021283545.5U Active CN213466856U (en) | 2020-07-04 | 2020-07-04 | Continuous dewatering device of solvent for production of high-purity acetophenone |
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| CN (1) | CN213466856U (en) |
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