CN203494201U - P-benzoquinone stripping tower without tray and filler - Google Patents
P-benzoquinone stripping tower without tray and filler Download PDFInfo
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- CN203494201U CN203494201U CN201320525376.5U CN201320525376U CN203494201U CN 203494201 U CN203494201 U CN 203494201U CN 201320525376 U CN201320525376 U CN 201320525376U CN 203494201 U CN203494201 U CN 203494201U
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- tower
- feed pipe
- benzoquinone
- stripping
- nozzle
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Abstract
The utility model discloses a p-benzoquinone stripping tower without a tray and filler. The p-benzoquinone stripping tower comprises a tower body, wherein a top feeding tube, a middle feeding tube and a bottom feeding tube are arranged at the upper part, the middle part and the lower part of the tower body, respectively; all feeding tubes extend into the tower body; a plurality of distributing branch tubes are arranged on the feeding tubes in the tower body; spray nozzles which are uniformly distributed are arranged at the bottoms of the feeding tubes and the distributing branch tubes. The spray nozzles of the top feeding tube can enable mist spray formed by mother liquor to collide with and hold back impurities, such as manganese mineral powder, rising with steam, and to flush attachments on the tower wall from top to bottom; the spray nozzles of the middle feeding tube can enable reaction liquor to quickly mix with the steam, and to form solid conical mist spray under driving of steam pressure, so that heat-transmitting and stripping functions are realized; the spray nozzles of the bottom feeding tube can carry out stripping on the reaction liquor in a descending process. The p-benzoquinone stripping tower without the tray and filler is good in stripping effect and capable of greatly reducing the frequency of cleaning pieces inside the tower, so that not only can production efficiency be improved, but also operation cost can be reduced, and therefore, economic benefits are very good.
Description
Technical field
The utility model relates to a kind of chemical industry equipment, especially relates to a kind of 1,4-benzoquinone stripper without tower tray and filler.
Background technology
Benzoquinones (benzoquinone) is a kind of of quinone.Molecular formula C6H4O2, has two kinds of adjacent benzoquinones and 1,4-benzoquinone.1,4-benzoquinone is more important, can be used as dyestuff and medicine intermediate, rubber antioxidant, polymerization inhibitor, antioxidant, developer etc.
The conventional production methods of 1,4-benzoquinone is oxidizing process, and aniline oxidation solution water at atmospheric pressure steam stripping is prepared 1,4-benzoquinone finished product.When prepared by 1,4-benzoquinone, what conventionally adopt is valve tower, number of trays has 10-15 layer, all there is the dead angle of poor fluidity in every one deck, and send in Pyrogentisinic Acid's reactant liquor of stripper, be mingled with a large amount of manganese ore powder and other impurity, these impurity can sedimentations, be deposited in the place, dead angle of the poor fluidity of tower tray, then caking progressively expanding, cause stripper efficiency to reduce, finally cause stripper cisco unity malfunction.Therefore must will after stripper dismounting, clean at set intervals, bothersome effort during cleaning, the continuity that impact is produced, has reduced 1,4-benzoquinone output, has increased production cost.
Summary of the invention
The utility model object is to provide a kind of 1,4-benzoquinone stripper top desludging device, and while using to improve existing equipment, stripper clay content is many, impurity removal process is complicated, removal of impurities cost is high, affect the technical problems such as production efficiency.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of 1,4-benzoquinone stripper without tower tray and filler, comprise tower body, three of described tower body upper, middle and lower part is respectively equipped with its top feed pipe, middle part feed pipe, bottom feed pipe, all feed pipes all extend in tower body, be positioned on the feed pipe of tower body and be provided with a plurality of dispensing branch, this feed pipe and dispensing branch bottom are provided with equally distributed nozzle, and described its top feed pipe, middle part feed pipe, bottom feed Guan Jun are connected with material storage tank by conveyance conduit.
As preferably, the nozzle on described its top feed pipe is hollow cone nozzle; Nozzle on the feed pipe of middle part is two substance nozzle; The nozzle of bottom feed pipe is solid-cone (type) nozzle.
The utlity model has simple in structure, Srteam Stripping effect is good, the advantage that stripping dead angle is few, the spraying that the nozzle of its top feed pipe can make mother liquor form, can clash into and hold back the impurity such as manganese ore powder with steam rising, and attachment on purge column wall from top to bottom, the nozzle of middle part feed pipe can make reactant liquor mix rapidly with steam, and under driving, steam pressure forms solid taper spraying, realize and conducting heat, function of steam stripping, the nozzle of bottom feed pipe can carry out stripping to the reactant liquor in decline process, its Srteam Stripping effect is good, can greatly reduce the wash number of tower internals, not only improved production efficiency, and saved operation cost, there is good economic benefit.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the schematic diagram of hollow cone nozzle;
Fig. 4 is the schematic diagram of two substance nozzle;
Fig. 5 is the schematic diagram of solid-cone (type) nozzle.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the technical solution of the utility model is described in further detail.Fig. 1 is structural representation of the present utility model, and Fig. 2 is the top view of Fig. 1, and Fig. 3 is the schematic diagram of hollow cone nozzle, and Fig. 4 is the schematic diagram of two substance nozzle, and Fig. 5 is the schematic diagram of solid-cone (type) nozzle.
As seen from the figure, this is without the 1,4-benzoquinone stripper of tower tray and filler, and its tower body 1 San Ge position, upper, middle and lower is respectively equipped with its top feed pipe 11, middle part feed pipe 12 and bottom feed pipe 13, and all feed pipes all extend in tower.On each feed pipe, be provided with a plurality of dispensing branch 3, feed pipe 11,12,13 and dispensing branch 3 bottoms are provided with equally distributed nozzle.Nozzle on its top feed pipe 11 is hollow cone nozzle 41; Nozzle on the feed pipe 12 of middle part is two substance nozzle 42; The nozzle of bottom feed pipe 13 is solid-cone (type) nozzle 43.
The charging of its top feed pipe 11 can be used 1,4-benzoquinone mother liquor, clear water, stripping tower bottom clear liquid or other substantially containing solid particle fresh water (FW) etc., the spraying that the nozzle 41 of its top feed pipe 11 can make mother liquor form, can clash into and hold back the impurity such as manganese ore powder with steam rising, and attachment on purge column wall from top to bottom, and can be at the capable formation of tower wall water membrane, the from top to bottom attachment on purge column wall.Two substance nozzle 42 of middle part feed pipe 12 can make reactant liquor mix rapidly with steam, and reactant liquor can siphon or by deadweight flow nozzle, forms solid taper and sprays, realization heat transfer, function of steam stripping under steam pressure drives.Jet particle size is adjustable, and thing grain is even, and flow adjustment range is large, is difficult for stopping up.The simple steam that adopts of solid-cone (type) nozzle 43 of bottom feed pipe 13, as supplementing portion of energy, further carries out stripping to the reactant liquor in decline process.
Adopt the combined mode of multiple nozzle can simplify the structure of stripper, in tower, reduce at dead angle, and manganese ore powder impurity caking is basic to be eliminated, and washes tower operation and greatly reduce, and can enhance productivity.
Finally, it should be pointed out that the above specific embodiment is only the more representational example of the utility model.Obviously, the utility model is not limited to the above-mentioned specific embodiment, can also have many distortion.Any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done the above specific embodiment, all should think and belong to protection domain of the present utility model.
Claims (2)
1. the 1,4-benzoquinone stripper without tower tray and filler, comprise tower body, it is characterized in that three of described tower body upper, middle and lower part is respectively equipped with its top feed pipe, middle part feed pipe, bottom feed pipe, all feed pipes all extend in tower body, be positioned on the feed pipe of tower body and be provided with a plurality of dispensing branch, this feed pipe and dispensing branch bottom are provided with equally distributed nozzle, and described its top feed pipe, middle part feed pipe, bottom feed Guan Jun are connected with material storage tank by conveyance conduit.
2. a kind of 1,4-benzoquinone stripper without tower tray and filler according to claim 1, is characterized in that the nozzle on described its top feed pipe is hollow cone nozzle; Nozzle on the feed pipe of middle part is two substance nozzle; The nozzle of bottom feed pipe is solid-cone (type) nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320525376.5U CN203494201U (en) | 2013-08-27 | 2013-08-27 | P-benzoquinone stripping tower without tray and filler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320525376.5U CN203494201U (en) | 2013-08-27 | 2013-08-27 | P-benzoquinone stripping tower without tray and filler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203494201U true CN203494201U (en) | 2014-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320525376.5U Expired - Lifetime CN203494201U (en) | 2013-08-27 | 2013-08-27 | P-benzoquinone stripping tower without tray and filler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203494201U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106693649A (en) * | 2016-12-23 | 2017-05-24 | 北方华锦化学工业集团有限公司 | Desulfurizing absorption tower wall cleaning device |
| CN106867569A (en) * | 2017-03-15 | 2017-06-20 | 神华集团有限责任公司 | The retracting device and recovery method of solvent in coal directly-liquefied residue extraction heavy phase |
-
2013
- 2013-08-27 CN CN201320525376.5U patent/CN203494201U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106693649A (en) * | 2016-12-23 | 2017-05-24 | 北方华锦化学工业集团有限公司 | Desulfurizing absorption tower wall cleaning device |
| CN106867569A (en) * | 2017-03-15 | 2017-06-20 | 神华集团有限责任公司 | The retracting device and recovery method of solvent in coal directly-liquefied residue extraction heavy phase |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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Granted publication date: 20140326 |
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| CX01 | Expiry of patent term |