CN202700475U - Anthraquinone oxidizer with reinforced heat insulation function - Google Patents
Anthraquinone oxidizer with reinforced heat insulation function Download PDFInfo
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- CN202700475U CN202700475U CN 201220362154 CN201220362154U CN202700475U CN 202700475 U CN202700475 U CN 202700475U CN 201220362154 CN201220362154 CN 201220362154 CN 201220362154 U CN201220362154 U CN 201220362154U CN 202700475 U CN202700475 U CN 202700475U
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- oxidizer
- air
- anthraquinone
- oxidator
- heat exchanger
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Abstract
The utility model discloses an anthraquinone oxidizer with a reinforced heat insulation function and relates to the technical field of devices for producing anthraquinone by oxidizing anthracene used as a raw material by using air. A color plate is wrapped outside an oxidizer shell, and aluminum silicate fibers of which the thickness is 20cm are filled between the color plate and the oxidizer shell. By using the color plate, the aluminum silicate fibers are distributed in the oxidizer, so that the oxidizer can be fully subjected to heat insulation, so that the heat irritated to environment by the oxidizer can be reduced, and the recovery rate of heat generated in oxidizing reaction can be improved.
Description
Technical field
The utility model relates to take anthracene as raw material, through air oxidation, makes the process units technical field of anthraquinone.
Background technology
Take anthracene as raw material, through air oxidation, the dyestuff intermediate anthraquinone that makes (is commonly called as: the oxidation anthraquinone, to be different from synthetic anthraquinone) production, existing many decades is historical in China, technical process is: the anthracene of content 〉=90% is dropped into molten anthracene still heating and melting, squeeze into the vaporization still with submerged pump, in the vaporization still, pass into the 0.03Mpa superheated steam again, make anthracene gasification, enter blender, and enter the fixed bed oxidator that phosphorus/vanadium catalyst is housed after 〉=250 ℃ of hot-airs mix, make anthracene be oxidized to anthraquinone, because the empty ratio of anthracene, catalyst activity, the isoparametric impact of oxidizing reaction temperature, the simultaneously certain side reaction of association, oxidized byproduct is phthalic anhydride or until carbon dioxide and water, what of side reaction directly affect the consumption of quality and the raw material anthracene of product anthraquinone.
The means of control oxidation reaction state are in this device: 1, adopt the method for the flow of control superheated steam to control the anthracene vaporization amount that enters oxidator.2, employing is regulated the emptying method of roots blower air cushioning tank atmospheric valve and is entered the oxidator air capacity.3, adopt oxidator-fused salt circulatory system to function of environment heat emission, take away reaction heat, to keep the relatively stable of reaction temperature.
The defective that above-mentioned three kinds of control methods exist is: 1, in the manually-operated regulation process, be difficult to precisely control, reaction temperature is the result of many constitutive equations such as heat of being removed by anthracene quantity of steam, air capacity, reaction speed (reaction speed is subjected to again the variation of reaction temperature and changes), reaction heat, salt bath, the particularly variation of reaction temperature, bring the variation of oxidation reaction speed, bring the variation of reaction heat, if side reaction is risen, reaction heat discharges in a large number, the more difficult grasp of reaction temperature.During 2, because of the catalyst cycle activation, need than Wind Volume, so the configuration of roots blower air quantity is higher, and the wind supply quantity when normally producing is about 2/3 of nominal air delivery, and all the other air quantity of 1/3 are namely emptying by surge tank, cause electric weight to waste in a large number.3, oxidation reaction thermal recovery fused salt circulation, is reacted in a large number heat energy and is not utilized to function of environment heat emission by pipeline fused salt storage tank.
In order to overcome the defective of above prior art, technology is transformed, its scheme is: comprise blower fan, also comprise the molten anthracene still, anthracene vaporization still, blender, oxidator, spark arrester and the cooling cylinder that are connected in series successively by pipeline, entrance point at described blender also connects the hot-blast stove air heat exchanger, also comprises the fused salt circulatory system of carrying out heat exchange with described oxidator; And material-air heat exchanger is set in spark arrester and in the fused salt circulating line, is connected in series fused salt-air heat exchanger, concrete connected mode is: the pipeline that is connected with the hot-blast stove air heat exchanger at the air outlet of blower fan is connected in series a port of export of air cushioning tank, in addition two ports of export of air cushioning tank connect the entrance point of air system of fused salt air heat exchanger and the air intlet end of spark arrester air heat exchanger by control valve respectively, the salt melting system of described fused salt heat exchanging device is serially connected with in the fused salt circulation line between oxidator and the fused salt tank, the port of export of the air system of described fused salt-air heat exchanger is connected to supplying on the airduct of described hot-blast stove air heat exchanger, and the port of export of described spark arrester air heat exchanger also is connected to supplying on the airduct of described hot-blast stove air heat exchanger.
Operation principle is: the cold air that adopts the air cushioning tank that blower fan is supplied with is divided into three the tunnel: first via cold air can directly enter the airduct that supplies of hot-blast stove air heat exchanger; The the second road cold air enters the spark arrester air heat exchanger, carry out heat exchange with the high-temperature material that enters in the spark arrester after the oxidator reaction, can make the material cooling in the spark arrester, make simultaneously the cold air that enters in the spark arrester Air heat exchanger obtain heating up, entered the airduct that supplies of hot-blast stove air heat exchanger by the air outlet slit end of spark arrester air heat exchanger; The heat with from the fused salt tank that the Third Road cold air enters fused salt-air heat exchanger carries out heat exchange, and the air after this is heated enters hot-blast stove for airduct by the port of export of the air of fused salt-air heat exchanger.
More than device takes full advantage of the oxidation reaction heat that high-temperature molten salt and high-temperature material are taken out of, by fused salt-air heat exchanger and spark arrester air heat exchanger preheating normal temperature air, for the hot-blast stove air heat exchanger provides through preheated air, after heat exchanger reclaims oxidation reaction heat energy, the EAT of hot-blast stove air heat exchanger becomes 180 ℃～200 ℃ hot blasts from the normal temperature temperature of original device, has greatly reduced the coal consumption of hot-blast stove.
But, because existing oxidator does not have heat-insulating property, both caused a large amount of thermal waste, also be unfavorable for the formation of stable reaction atmosphere, conversion ratio and yield are also unstable.
Summary of the invention
The utility model purpose is to propose to overcome the energy-saving oxidation anthraquinone process units that there is above problem in existing production industry.
The utility model is at oxidator shell outer wrapping color steel, and filling thickness is the alumina silicate fibre of 20cm between color steel and oxidator shell.
The present invention adopts color steel that alumina silicate fibre is arranged in wherein, and oxidator all is incubated, and to reduce oxidator to function of environment heat emission, improves the rate of recovery of oxidation reaction heat.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
The specific embodiment
As shown in Figure 1, at oxidator shell 1 outer wrapping color steel 2, filling thickness is the alumina silicate fibre 3 of 20cm between color steel 2 and oxidator shell 1.
Claims (1)
1. have the anthraquinone oxidator of strengthening insulation, comprise the oxidator shell, it is characterized in that: at oxidator shell outer wrapping color steel, filling thickness is the alumina silicate fibre of 20cm between color steel and oxidator shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220362154 CN202700475U (en) | 2012-07-25 | 2012-07-25 | Anthraquinone oxidizer with reinforced heat insulation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220362154 CN202700475U (en) | 2012-07-25 | 2012-07-25 | Anthraquinone oxidizer with reinforced heat insulation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202700475U true CN202700475U (en) | 2013-01-30 |
Family
ID=47580816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220362154 Expired - Fee Related CN202700475U (en) | 2012-07-25 | 2012-07-25 | Anthraquinone oxidizer with reinforced heat insulation function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202700475U (en) |
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2012
- 2012-07-25 CN CN 201220362154 patent/CN202700475U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20190725 |