CN203540100U - Dimethyl sulfate rectifying tower - Google Patents
Dimethyl sulfate rectifying tower Download PDFInfo
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- CN203540100U CN203540100U CN201320680640.2U CN201320680640U CN203540100U CN 203540100 U CN203540100 U CN 203540100U CN 201320680640 U CN201320680640 U CN 201320680640U CN 203540100 U CN203540100 U CN 203540100U
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- Prior art keywords
- tower body
- tower
- gas
- pipeline
- packing layer
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- VAYGXNSJCAHWJZ-UHFFFAOYSA-N dimethyl sulfate Chemical compound COS(=O)(=O)OC VAYGXNSJCAHWJZ-UHFFFAOYSA-N 0.000 title abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 52
- 239000000463 material Substances 0.000 claims abstract description 46
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims description 28
- 238000012856 packing Methods 0.000 claims description 28
- 238000000926 separation method Methods 0.000 claims description 19
- 238000007599 discharging Methods 0.000 claims description 17
- 229910001220 stainless steel Inorganic materials 0.000 claims description 10
- 239000010935 stainless steel Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000009826 distribution Methods 0.000 claims description 8
- 239000002699 waste material Substances 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000000126 substance Substances 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010924 continuous production Methods 0.000 abstract description 2
- 239000000945 filler Substances 0.000 abstract 2
- 239000010808 liquid waste Substances 0.000 abstract 1
- 238000009833 condensation Methods 0.000 description 9
- 230000005494 condensation Effects 0.000 description 9
- 238000000605 extraction Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 230000000630 rising effect Effects 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 4
- 238000009835 boiling Methods 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 238000007701 flash-distillation Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 238000004821 distillation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model relates to the field of chemical industry and particularly relates to a dimethyl sulfate rectifying tower. The dimethyl sulfate rectifying tower comprises a tower body, wherein a feeding hole is formed in the middle part of one side of the tower body and connected with a liquid distributor inside the tower through a pipeline; a side discharge hole and a material steam opening are respectively formed at the upper middle part and the lower part of the other side of the tower body; a top discharge hole is formed at the top of the tower body; a liquid waste outlet and a material outlet are respectively formed at the bottom of the tower body; the material outlet is communicated with the material steam opening through the pipeline via a reboiler; a gas-liquid separating device for dividing the inside of the tower body into upper and lower parts is transversely arranged inside the tower body between the feeding hole and the side discharge hole; an upper filler layer and a lower filler layer are respectively arranged inside the tower body parts above and below the gas-liquid separating device. The dimethyl sulfate rectifying tower has the beneficial effects that an operation becomes into continuous production from intermittent production, so that the purity of the product is greatly improved, and the product quality has great controllability and maneuverability.
Description
(1) technical field
The utility model relates to chemical field, particularly a kind of dimethyl suflfate rectifying column.
(2) background technology
Rectifying column is the device of different liquids component in a kind of separating liquid mixture common in Chemical Manufacture, is usually used in product and purifies.Generally, material utilizes the boiling point of different material in material different after entering in tower, outside under heat condition at steam or other, and the gas-liquid contacts such as material constantly gasifies, condensation are exchanged, and realizes the separation of different liquids in liquid mixture.In Chemical Manufacture, common rectifying column major part is the pattern that adopts material to enter, go out product, heat at tower bottom from top of tower from tower top side, this pattern is effective to mixture kind product less, that boiling point difference is large in separation, purification material, but because the kind of mixture in dimethyl suflfate is more, and some accessory substance boiling-point difference is apart from little, caused separated difficulty larger, and energy consumption is high, so general rectifier unit cannot meet the needs of production.
The method of purification of existing dimethyl suflfate is to adopt spherical reactor to distill, under condition of negative pressure, adopt Steam Heating, make that the thick material of dimethyl suflfate constantly evaporates, condensation is purified, because the boiling-point difference distance of part accessory substance is little, therefore the dimethyl suflfate purity after purifying is not high, also contain a lot of impurity, and distillation condensation process needs considerable time, therefore in actual production process, can only be to be interrupted to produce, can not carry out serialization production, inefficiency, and energy consumption is high, to production work, brought great inconvenience.
(3) summary of the invention
The utility model is in order to make up the deficiencies in the prior art, provide a kind of rational in infrastructure, convenient and practical, can produce continuously, efficiency is high, cost is low, energy consumption is low, output is high, the high dimethyl suflfate rectifying column of product purity produced.
The utility model is achieved by the following technical solution:
A kind of dimethyl suflfate rectifying column, comprise tower body, middle part in tower body one side is provided with a charging aperture, charging aperture is connected with a liquid distribution trough that is located at tower body inside by pipeline, middle and upper part and bottom at tower body opposite side are respectively equipped with side discharging opening and material steam mouth, at the top of tower body, be provided with a top discharge mouth, in the bottom of tower body, be respectively equipped with waste liquid outlet and material outlet, material outlet is connected with material steam mouth through reboiler by pipeline, in tower body between charging aperture and side discharging opening, be horizontally arranged with one tower body inside is divided into upper and lower two-part gas-liquid separation device, in the tower body of gas-liquid separation device above and below, be respectively equipped with packing layer and lower packing layer, side discharging opening is communicated with a three-way pipe, one port of three-way pipe is connected with outside storage tank by pipeline, another port is connected with the tower body inside of upper packing layer top through condenser by pipeline.
Described gas-liquid separation device comprises the plate body of a horizontally set, on plate body, be vertically provided with some and be communicated with the upper and lower two-part mozzle of tower body, above every mozzle, be equipped with a conical fair water cone, the inwall of conical fair water cone is connected by the top of some poles and mozzle.
Described upper packing layer is one deck stainless steel helices layer; Described lower packing layer comprises some layers of stainless steel helices layer, between neighbouring two stainless steel helices layers, is provided with cavity.
The beneficial effect of the utility model dimethyl suflfate rectifying column is: rational in infrastructure, convenient and practical, efficiency is high, cost is low, energy consumption is low, output is high, make the purification of dimethyl suflfate become rectification process from distil process, make operation become continuous production from being interrupted to produce, middle and upper part and top at tower body are provided with two discharging openings, and charging aperture has been located at tower body middle part, like this can be the light component separating substances in dimethyl suflfate out, greatly improved the purity of product, and can adjust product quality according to the different demand of client, can rectifying go out higher-quality product, make product quality there is very large controllability and operability, more be conducive to meet the need of market.
(4) accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further described.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the local enlarged diagram of the utility model mozzle and conical fair water cone.
In figure, 1 tower body, 2 charging apertures, 3 liquid distribution troughs, 4 side discharging openings, 5 material steam mouths, 6 top discharge mouths, 7 waste liquid outlets, packing layer on 8,9 times packing layers, 10 condensers, 11 plate bodys, 12 mozzles, 13 conical fair water cones, 14 poles, 15 reboilers.
(5) specific embodiment
In order to make technology of the present utility model, feature, object and effect etc. be easier to understand, understand, below in conjunction with accompanying drawing of the present utility model, the technical solution of the utility model is carried out to clear, complete description, but the utility model is not limited to this.
As shown in Fig. 1-Fig. 2, this embodiment comprises tower body 1, at the middle part of tower body 1 one sides, be provided with a charging aperture 2, charging aperture 2 is connected with a liquid distribution trough 3 that is located at tower body 1 inside by pipeline, middle and upper part and bottom at tower body 1 opposite side are respectively equipped with side discharging opening 4 and material steam mouth 5, at the top of tower body 1, be provided with a top discharge mouth 6, in the bottom of tower body 1, be respectively equipped with waste liquid outlet 7 and material outlet, material outlet is connected with material steam mouth 5 through reboiler 15 by pipeline, in tower body 1 between charging aperture 2 and side discharging opening 4, be horizontally arranged with one tower body 1 inside is divided into upper and lower two-part gas-liquid separation device, in the tower body 1 of gas-liquid separation device above and below, be respectively equipped with packing layer 8 and lower packing layer 9, side discharging opening 4 is communicated with a three-way pipe, one port of three-way pipe is connected with outside storage tank by pipeline, another port is connected with tower body 1 inside of upper packing layer 8 tops through condenser 10 by pipeline, gas-liquid separation device comprises the plate body 11 of a horizontally set, on plate body 11, be vertically provided with some and be communicated with the upper and lower two-part mozzle 12 of tower body 1, above every mozzle 12, be equipped with a conical fair water cone 13, the inwall of conical fair water cone 13 is connected by some poles 14 and the top of mozzle 12, upper packing layer 8 is one deck stainless steel helices layer, lower packing layer 9 comprises some layers of stainless steel helices layer, between neighbouring two stainless steel helices layers, is provided with cavity.
The distillation process of this dimethyl suflfate rectifying column, comprised as the next stage:
(a) produce the preparatory stage of driving:
Produce while driving, open negative pressure system, make in tower body 1 in negative pressure, to reduce the boiling point of material, by the thick material of dimethyl suflfate from charging aperture 2 enters tower body 1, by pipeline, through liquid distribution trough 3, material is evenly distributed, the material being evenly distributed enters the bottom of tower body 1 downwards by lower packing layer 9, by bottom material outlet, enter reboiler 15 again, when the material of tower body 1 bottom reach a certain height, opening 15 pairs of materials of reboiler heats, material after being heated becomes steam, from material steam mouth 5, enter tower body 1 interior toward rising, in the process of steam rising under process during packing layer 9, part heavy constituent material can condensation become liquid toward declining, remaining gas continues toward rising, then mozzle 12 and the space between conical fair water cone 13 by gas-liquid separation device enters in the tower body 1 of gas-liquid separation device top, now due to firm driving, the temperature of tower top is lower, therefore have the dimethyl suflfate liquid that portion gas is condensed into low-purity, discharging opening 4 extraction from the side, discharging opening 4 extraction from the side through the condensed low-purity dimethyl suflfate of condenser 10 liquid, through pipeline, be again back to that the tower body 1 of upper packing layer 8 tops is interior to be used as condensate liquid, remaining portion gas obtains the dimethyl suflfate liquid of low-purity by condensation from 6 extraction of top discharge mouth, also be sent back to that the tower body 1 of packing layer 8 tops is interior to be used as condensate liquid, by that analogy, after repeating to reflux several times, the dimethyl suflfate purity liquid of discharging opening 4 extraction from the side slowly improves, after bringing up to the purity of requirement, obtain highly purified dimethyl suflfate liquid, then enter formal stage of rectification,
(b) formal stage of rectification:
During formal stage of rectification, temperature in tower body 1 is higher, by the thick material of dimethyl suflfate from charging aperture 2 enters tower body 1, by pipeline, through liquid distribution trough 3, material is evenly distributed, the material being evenly distributed mixes with the high-temperature gas that enters tower body 1 interior rising from material steam mouth 5, some material generation flash distillation, and become gas after the high-temperature gas Hybrid Heating that remainder material can continue by some layers of stainless steel helices layer successively and rise downwards, after mixing with the gas of flash distillation, continues gas after heating to rise, then mozzle 12 and the space between conical fair water cone 13 by gas-liquid separation device enters in the tower body 1 of gas-liquid separation device top, now a part of light-component gas is from 6 extraction of top discharge mouth, no longer send back in the tower body 1 of packing layer 8 tops, but make the dimethyl suflfate that purity is slightly low after condensation, store for personal or sale, and remaining heavy constituent gas when rising with the high-purity dimethyl sulfate liquid through condenser 10 condensations of backflow above upper packing layer 8 after upper packing layer 8 contacts, be condensed into liquid material, discharging opening 4 extraction from the side, obtain highly purified dimethyl suflfate liquid.Most high-purity dimethyl sulfate is admitted to outside storage tank stores and sells as product, and another a fraction of high-purity dimethyl sulfate comes back in the tower body 1 of upper packing layer 8 tops by pipeline after condenser 10 condensations, the gas that continues to reflux with in the tower body 1 of gas-liquid separation device top as condensate liquid contacts, highly purified dimethyl suflfate is used as condensate liquid through condensation, can control by condenser 10 temperature of condensate liquid on the one hand, can also improve the purity of dimethyl suflfate on the other hand, kill two birds with one stone; In addition the material of difficult volatilization is after lower packing layer 9 multilayer separation, enter tower body 1 bottom, by reboiler 15, constantly heated volatile component substance is proposed again, remaining difficult volatilization heavy component material can be more and more higher in tower body 1 bottom concentration, finally according to index situation from waste liquid outlet 7 extraction.
In tower body 1, be provided with packing layer 8 and lower packing layer 9, to extend the stroke of gas-liquid contact exchange.In order to increase the effective area in tower body 1, material is uniformly distributed, there is not bias current, charging aperture 2 connects liquid distribution trough 3 by pipeline, utilizes liquid distribution trough 3 that feed liquid is evenly distributed.In order to improve the purity of product, the interior gas-liquid separation device that arranges of tower body 1 between charging aperture 2 and side discharging opening 4, by gas-liquid separation device, tower body 1 is separated into two sections, and be provided with two discharging openings at middle and upper part and the top of tower body 1, make light component separated with heavy constituent, thereby reached, allow different mixtures in material carry out separated object, solved the problem that in dimethyl suflfate, multicomponent mixes, improved the purity of product.Charging aperture 2 is located to the middle part of tower body 1, material enters from the middle part of tower body 1, because the temperature at tower body 1 middle part is higher, some dimethyl suflfate generation flash distillation after material is entered, thereby reduced the pressure of tower body 1 bottom, improved the rectification efficiency of tower body 1, reduced energy resource consumption, thereby greatly improved production efficiency, reduced production cost, improved output, avoided the impact of its top feed on product quality simultaneously.
Claims (3)
1. a dimethyl suflfate rectifying column, it is characterized in that: comprise tower body, middle part in tower body one side is provided with a charging aperture, charging aperture is connected with a liquid distribution trough that is located at tower body inside by pipeline, middle and upper part and bottom at tower body opposite side are respectively equipped with side discharging opening and material steam mouth, at the top of tower body, be provided with a top discharge mouth, in the bottom of tower body, be respectively equipped with waste liquid outlet and material outlet, material outlet is connected with material steam mouth through reboiler by pipeline, in tower body between charging aperture and side discharging opening, be horizontally arranged with one tower body inside is divided into upper and lower two-part gas-liquid separation device, in the tower body of gas-liquid separation device above and below, be respectively equipped with packing layer and lower packing layer, side discharging opening is communicated with a three-way pipe, one port of three-way pipe is connected with outside storage tank by pipeline, another port is connected with the tower body inside of upper packing layer top through condenser by pipeline.
2. a kind of dimethyl suflfate rectifying column according to claim 1, it is characterized in that: described gas-liquid separation device comprises the plate body of a horizontally set, on plate body, be vertically provided with some and be communicated with the upper and lower two-part mozzle of tower body, above every mozzle, be equipped with a conical fair water cone, the inwall of conical fair water cone is connected by the top of some poles and mozzle.
3. a kind of dimethyl suflfate rectifying column according to claim 1 and 2, is characterized in that: described upper packing layer is one deck stainless steel helices layer; Described lower packing layer comprises some layers of stainless steel helices layer, between neighbouring two stainless steel helices layers, is provided with cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320680640.2U CN203540100U (en) | 2013-10-30 | 2013-10-30 | Dimethyl sulfate rectifying tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320680640.2U CN203540100U (en) | 2013-10-30 | 2013-10-30 | Dimethyl sulfate rectifying tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203540100U true CN203540100U (en) | 2014-04-16 |
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ID=50458270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320680640.2U Expired - Lifetime CN203540100U (en) | 2013-10-30 | 2013-10-30 | Dimethyl sulfate rectifying tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203540100U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103566614A (en) * | 2013-10-30 | 2014-02-12 | 临沂远博化工有限公司 | Dimethyl sulfate rectifying tower |
| CN107213663A (en) * | 2017-07-19 | 2017-09-29 | 成都尚智恒达科技有限公司 | The carbon disulfide rectifying column of condenser built in a kind of tower top band |
-
2013
- 2013-10-30 CN CN201320680640.2U patent/CN203540100U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103566614A (en) * | 2013-10-30 | 2014-02-12 | 临沂远博化工有限公司 | Dimethyl sulfate rectifying tower |
| CN107213663A (en) * | 2017-07-19 | 2017-09-29 | 成都尚智恒达科技有限公司 | The carbon disulfide rectifying column of condenser built in a kind of tower top band |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |
|
| CX01 | Expiry of patent term |