CN215653855U - Drying and solvent recovery device for production of brominated polycarbonate - Google Patents
Drying and solvent recovery device for production of brominated polycarbonate Download PDFInfo
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- CN215653855U CN215653855U CN202122293110.XU CN202122293110U CN215653855U CN 215653855 U CN215653855 U CN 215653855U CN 202122293110 U CN202122293110 U CN 202122293110U CN 215653855 U CN215653855 U CN 215653855U
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Abstract
The utility model relates to the technical field of chemical raw material production, in particular to a drying and solvent recovery device for producing brominated polycarbonate, which comprises a feed liquid storage tank, wherein a discharge port of the feed liquid storage tank is communicated with a drying tower; the drying tower includes the tower body, and bottom one side of tower body is equipped with steam inlet, and upper portion one side of tower body is equipped with the feed liquid import, and the inside below of tower body is equipped with the gas distributor that is linked together with steam inlet, and the inside top of tower body is equipped with the feed liquid distributor that is linked together with feed liquid inlet pipe, and the inside of tower body is equipped with scrapes the material part. By adopting the device, the recycling of the reaction solvent in the brominated polycarbonate feed liquid is realized, the drying of the brominated polycarbonate is realized, the drying tower is adopted for drying, the energy consumption is saved, the operation is convenient, and the continuous production can be realized.
Description
Technical Field
The utility model relates to the technical field of chemical raw material production, in particular to a drying and solvent recovery device for producing brominated polycarbonate.
Background
The method comprises the following steps of reacting raw materials such as tetrabromobisphenol A, phosgene and the like to obtain a brominated polycarbonate product, wherein the obtained brominated polycarbonate product contains a reaction solvent, distilling the brominated polycarbonate product containing the reaction solvent by using a distillation still at present, adding deionized water into the distillation still in advance, heating to a certain temperature, dropwise adding brominated polycarbonate feed liquid into the distillation still, evaporating the solvent in the brominated polycarbonate feed liquid, cooling and recovering by using a condenser, leaving the brominated polycarbonate material in the deionized water, separating the brominated polycarbonate from deionized water by using a centrifugal machine, and drying the obtained brominated polycarbonate wet material by using a dryer to obtain a brominated polycarbonate finished product. Although the treatment equipment is adopted to realize the effective separation and drying of the brominated polycarbonate and the reaction solvent, the operation is complicated, a large amount of waste water is generated, the energy consumption is high in the drying process, the brominated polycarbonate feed liquid is added into a distillation kettle in a dropwise manner, the productivity is low, and the continuous production cannot be realized. Therefore, in order to solve the above problems, it is necessary to develop a drying and solvent recovery apparatus for producing brominated polycarbonate.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: aiming at the defects of the prior art, the drying and solvent recovery device for producing the brominated polycarbonate is provided, is convenient to operate, saves energy consumption, can realize continuous production, improves the productivity and does not discharge waste water.
In order to solve the technical problems, the technical scheme of the utility model is as follows:
a drying and solvent recovery device for producing brominated polycarbonate comprises a feed liquid storage tank, wherein a discharge port of the feed liquid storage tank is communicated with a drying tower, a gas outlet of the drying tower is communicated with a condensing device, a condensate outlet of the condensing device is communicated with a solvent recovery tank, and a discharge port of the drying tower is communicated with a finished product storage bin; the drying tower includes the tower body, bottom one side of tower body is equipped with steam inlet, upper portion one side of tower body is equipped with the feed liquid import, the inside below of tower body be equipped with the gas distributor that steam inlet is linked together, the inside top of tower body be equipped with the feed liquid distributor that the feed liquid inlet tube is linked together, the inside of tower body is equipped with scrapes the material part.
As a modified technical scheme, the gas distributor includes first gas distribution pipe and second gas distribution pipe, first gas distribution pipe and second gas distribution pipe are ring shape, first gas distribution pipe with be equipped with a plurality of connecting pipes between the second gas distribution pipe, be equipped with a plurality of height-inequality third gas distribution pipes on the connecting pipe, be equipped with a plurality of gas distribution holes on first gas distribution pipe, second gas distribution pipe and the third gas distribution pipe respectively.
As an improved technical scheme, a turbulence component is arranged above the gas distributor, the turbulence component is a turbulence plate which is obliquely arranged on the inner wall of the tower body, and a plurality of through holes are formed in the turbulence plate.
As an improved technical scheme, the material liquid distributor comprises a material liquid distribution disc, and a plurality of atomizing spray heads communicated with the material liquid distribution disc are arranged on the material liquid distribution disc.
As an improved technical scheme, the condensing device comprises a first condenser, a second condenser and a third condenser which are sequentially communicated, wherein an air inlet of the first condenser is communicated with a gas outlet of the drying tower, a condensate outlet of the first condenser is communicated with a condensate outlet of the second condenser and a condensate outlet of the third condenser is respectively communicated with the solvent recovery tank through pipelines.
As an improved technical scheme, a flow meter and a delivery pump are arranged on a feed liquid delivery pipeline which is communicated with a feed liquid inlet of the drying tower.
As an improved technical scheme, the scraping component comprises a scraping plate, the scraping plate is fixed on a stirring shaft, and one end of the stirring shaft is connected with an output shaft of a motor.
After the technical scheme is adopted, the utility model has the beneficial effects that:
the drying and solvent recovery device for producing the brominated polycarbonate comprises a feed liquid storage tank, wherein a discharge port of the feed liquid storage tank is communicated with a drying tower, a gas outlet of the drying tower is communicated with a condensing device, a condensate outlet of the condensing device is communicated with a solvent recovery tank, and a discharge port of the drying tower is communicated with a finished product storage bin; the drying tower includes the tower body, and bottom one side of tower body is equipped with steam inlet, and upper portion one side of tower body is equipped with the feed liquid import, and the inside below of tower body is equipped with the gas distributor that is linked together with steam inlet, and the inside top of tower body is equipped with the feed liquid distributor that is linked together with feed liquid inlet pipe, and the inside of tower body is equipped with scrapes the material part. In actual production, brominated polycarbonate feed liquid in a feed liquid storage tank enters a feed liquid distributor from a feed liquid inlet along a feed liquid conveying pipeline under the action of a conveying pump, the brominated polycarbonate feed liquid flows to the lower part of a tower body after being uniformly dispersed by the feed liquid distributor, meanwhile, steam enters a gas distributor from a steam inlet along a pipeline, the brominated polycarbonate feed liquid flows to the upper part of the tower body after being uniformly dispersed by the gas distributor, and after the steam flowing from bottom to top and the feed liquid flowing from top to bottom fully contact and exchange heat, organic solvent in the feed liquid enters a condensing device from a gas outlet in a gas form, is condensed and then enters a solvent recovery tank along the pipeline. And (3) carrying out steam drying on the brominated polycarbonate in the feed liquid, conveying the brominated polycarbonate to a finished product storage bin through a packing auger conveyor, and then subpackaging. By adopting the device, the recycling of the reaction solvent in the brominated polycarbonate feed liquid is realized, the drying of the brominated polycarbonate is realized, the drying tower is adopted for drying, the energy consumption is saved, the operation is convenient, and the continuous production can be realized.
Because the gas distributor includes first gas distribution pipe and second gas distribution pipe, first gas distribution pipe and second gas distribution pipe are the ring shape, are equipped with a plurality of connecting pipes between first gas distribution pipe and the second gas distribution pipe, are equipped with a plurality of highly inequality third gas distribution pipes on the connecting pipe, are equipped with a plurality of gas distribution holes on first gas distribution pipe, second gas distribution pipe and the third gas distribution pipe respectively. Steam enters the first gas distribution pipe, the second gas distribution pipe and the third gas distribution pipe along the pipelines, passes through the gas distribution holes to be uniformly dispersed, flows from bottom to top to be fully contacted with the feed liquid to exchange heat, the organic solvent in the feed liquid absorbs the heat and then enters the condensing device from the gas outlet in a gas form, and brominated polycarbonate in the feed liquid is heated and then is gathered at the bottom of the tower body in a solid form. Adopt above-mentioned air current distributor to realize the evenly distributed to steam, guarantee steam and feed liquid abundant contact, more help the drying to the feed liquid.
Because the gas distributor top is equipped with the vortex part, and the vortex part is the spoiler of slope setting on the tower body inner wall, is equipped with a plurality of through-holes on the spoiler. Through setting up the vortex part, can reduce the speed of air current, prolonged the contact time of feed liquid with steam, more help the drying to the feed liquid.
Because the feed liquid distributor comprises a feed liquid distribution disc, a plurality of atomizing nozzles communicated with the feed liquid distribution disc are arranged on the feed liquid distribution disc. The feed liquid enters the feed liquid distribution disc along the feed liquid conveying pipeline, and is uniformly dispersed by the atomizing nozzle and then fully contacted with steam to exchange heat. The feed liquid distributor adopting the structure realizes the uniform dispersion of feed liquid, and is more beneficial to the drying of the feed liquid by steam.
Because condensing equipment is including the first condenser, second condenser and the third condenser that communicate in proper order, the gas inlet intercommunication drying tower's of first condenser gas outlet, the condensate export of first condenser, the condensate export of second condenser and the condensate export of third condenser communicate the solvent recovery jar through the pipeline respectively. The distilled organic solvent can be fully condensed and recovered by the first condenser, the second condenser and the third condenser.
The liquid material conveying pipeline communicated with the liquid material inlet of the drying tower is provided with a flowmeter and a conveying pump. The pressure is provided for the feed liquid through the delivery pump, and the flow of the feed liquid is convenient to control through the flowmeter.
Because the scraping component comprises a scraping plate which is fixed on the stirring shaft, and one end of the stirring shaft is connected with the output shaft of the motor. The motor drives the stirring shaft to rotate, the material liquid on the inner wall of the tower body is scraped off by the scraper blade in the rotating process of the stirring shaft, and the brominated polycarbonate in the material liquid is convenient to attach to the inner wall of the tower body.
Drawings
FIG. 1 is a schematic structural diagram of a drying and solvent recovery device for producing brominated polycarbonate according to the present invention;
FIG. 2 is a schematic view of the gas distributor of FIG. 1;
the device comprises a liquid storage tank 1, a drying tower 2, a gas distributor 20, a first gas distribution pipe 200, a second gas distribution pipe 201, a connecting pipe 202, a third gas distribution pipe 203, a liquid distributor 21, a gas distribution disc 210, an atomizing spray head 211, a scraping part 22, a scraping plate 220, a connecting rod 221, a turbulent flow part 23, a finished product storage tank 3, a first condenser 4, a second condenser 5, a third condenser 6, a solvent recovery tank 7, a stirring shaft 8, a motor 9, a flow meter 10 and a delivery pump 11.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
A drying and solvent recovery device for producing brominated polycarbonate, as shown in figure 1, comprises a feed liquid storage tank 1, a discharge port of the feed liquid storage tank 1 is communicated with a drying tower 2, a discharge port of the drying tower 2 is communicated with a finished product storage bin 3, a gas outlet of the drying tower 2 is communicated with a condensing device, the condensing device comprises a first condenser 4, a second condenser 5 and a third condenser 6 (both graphite condensers) which are sequentially communicated, a gas inlet of the first condenser 4 is communicated with a gas outlet of the drying tower 2, a condensate outlet of the first condenser 4, a condensate outlet of the second condenser 5 and a condensate outlet of the third condenser 6 are respectively communicated with a solvent recovery tank 7 through pipelines, the drying tower 2 comprises a tower body, a steam inlet is arranged on one side of the bottom of the tower body, a feed liquid inlet is arranged on one side of the upper part of the tower body, a gas distributor 20 communicated with the steam inlet is arranged below the inside of the tower body, a material liquid distributor 21 communicated with the material liquid inlet pipe is arranged above the inside of the tower body, and a material scraping part 22 is arranged inside the tower body. The gas distributor 20 comprises a first gas distribution pipe 200 and a second gas distribution pipe 201, the first gas distribution pipe 200 and the second gas distribution pipe 201 are both in a ring shape, a plurality of connecting pipes 202 are arranged between the first gas distribution pipe 200 and the second gas distribution pipe 201, a plurality of third gas distribution pipes 203 with different heights are arranged on the connecting pipes 202, and a plurality of gas distribution holes are respectively arranged on the first gas distribution pipe 200, the second gas distribution pipe 201 and the third gas distribution pipes 203; the feed liquid distributor 21 comprises a feed liquid distribution disc 210 (fixed on the inner wall of the tower body through a connecting rod), and a plurality of atomizing nozzles 211 communicated with the feed liquid distribution disc 210 are arranged on the feed liquid distribution disc 210; the scraping component 22 comprises a scraping plate 220 which is obliquely arranged, the scraping plate 220 is fixed on the stirring shaft 8 through a connecting rod 221, and one end of the stirring shaft 8 is connected with an output shaft of the motor 9.
In actual production, brominated polycarbonate feed liquid in a feed liquid storage tank enters a feed liquid distribution disc of a feed liquid distributor from a feed liquid inlet along a feed liquid conveying pipeline under the action of a conveying pump, is uniformly dispersed by a plurality of atomizing nozzles on the feed liquid distribution disc and then flows to the lower part of a tower body, meanwhile, steam enters the interiors of a first gas distribution pipe, a second gas distribution pipe and a third gas distribution pipe of the gas distributor from a steam inlet along a pipeline, flows from bottom to top after passing through gas distribution holes and is uniformly dispersed, and is fully contacted with feed liquid in the tower body to exchange heat, organic solvent in the feed liquid absorbs the heat and then enters the interior of a first condenser from a gas outlet, uncondensed gas enters a second condenser for condensation, uncondensed gas enters a third condenser for condensation, and liquid condensed by the first condenser, the second condenser and the third condenser enters a solvent recovery tank along the pipeline; and (3) carrying out steam drying on the brominated polycarbonate in the feed liquid, conveying the brominated polycarbonate to a finished product storage bin through a packing auger conveyor, and then subpackaging. In the whole drying process, the motor runs to drive the stirring shaft to rotate, and the scraper scrapes the feed liquid on the inner wall of the tower body along with the rotation of the stirring shaft. By adopting the device, the recycling of the reaction solvent in the brominated polycarbonate feed liquid is realized, the drying of the brominated polycarbonate is realized, the drying tower is adopted for drying, the energy consumption is saved, the operation is convenient, and the continuous production can be realized.
Wherein the upper portion of the gas distributor 20 is provided with a turbulence member 23, the turbulence member is a turbulence plate obliquely arranged on the inner wall of the tower body, and the turbulence plate is provided with a plurality of through holes. Through setting up the vortex part, can reduce the speed of air current, prolonged the contact time of feed liquid with steam, more help the drying to the feed liquid.
Wherein, a flow meter 10 and a delivery pump 11 are arranged on a feed liquid delivery pipeline which is communicated with the feed liquid inlet of the feed liquid storage tank 1 and the drying tower 2. The pressure is provided for the feed liquid through the delivery pump, and the flow of the feed liquid is convenient to control through the flowmeter.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The utility model provides a bromo polycarbonate production is with dry and solvent recovery unit which characterized in that: the device comprises a feed liquid storage tank, wherein a discharge port of the feed liquid storage tank is communicated with a drying tower, a gas outlet of the drying tower is communicated with a condensing device, a condensate outlet of the condensing device is communicated with a solvent recovery tank, and a discharge port of the drying tower is communicated with a finished product storage bin; the drying tower includes the tower body, bottom one side of tower body is equipped with steam inlet, upper portion one side of tower body is equipped with the feed liquid import, the inside below of tower body be equipped with the gas distributor that steam inlet is linked together, the inside top of tower body is equipped with the feed liquid distributor that is linked together with the feed liquid inlet tube, the inside of tower body is equipped with scrapes the material part.
2. The drying and solvent recovery device for brominated polycarbonate production according to claim 1, characterized in that: the gas distributor comprises a first gas distribution pipe and a second gas distribution pipe, wherein the first gas distribution pipe and the second gas distribution pipe are both in a circular ring shape, a plurality of connecting pipes are arranged between the first gas distribution pipe and the second gas distribution pipe, a plurality of third gas distribution pipes with different heights are arranged on the connecting pipes, and a plurality of gas distribution holes are respectively arranged on the first gas distribution pipe, the second gas distribution pipe and the third gas distribution pipe.
3. The drying and solvent recovery device for brominated polycarbonate production according to claim 1, characterized in that: the gas distributor top is equipped with the vortex part, the vortex part is for the slope sets up spoiler on the tower body inner wall, be equipped with a plurality of through-holes on the spoiler.
4. The drying and solvent recovery device for brominated polycarbonate production according to claim 1, characterized in that: the feed liquid distributor comprises a feed liquid distribution disc, and a plurality of atomizing nozzles communicated with the feed liquid distribution disc are arranged on the feed liquid distribution disc.
5. The drying and solvent recovery device for brominated polycarbonate production according to claim 1, characterized in that: the condensing equipment is including the first condenser, second condenser and the third condenser that communicate in proper order, the air inlet intercommunication of first condenser the gas outlet of drying tower, the condensate export of first condenser the condensate export of second condenser and the condensate export of third condenser communicates the solvent recovery jar through the pipeline respectively.
6. The drying and solvent recovery device for brominated polycarbonate production according to claim 1, characterized in that: and a flow meter and a delivery pump are arranged on a feed liquid delivery pipeline which is communicated with the feed liquid inlet of the drying tower.
7. The drying and solvent recovery device for brominated polycarbonate production according to claim 1, characterized in that: the scraping component comprises a scraping plate, the scraping plate is fixed on the stirring shaft, and one end of the stirring shaft is connected with an output shaft of the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122293110.XU CN215653855U (en) | 2021-09-22 | 2021-09-22 | Drying and solvent recovery device for production of brominated polycarbonate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122293110.XU CN215653855U (en) | 2021-09-22 | 2021-09-22 | Drying and solvent recovery device for production of brominated polycarbonate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215653855U true CN215653855U (en) | 2022-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122293110.XU Active CN215653855U (en) | 2021-09-22 | 2021-09-22 | Drying and solvent recovery device for production of brominated polycarbonate |
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| Country | Link |
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| CN (1) | CN215653855U (en) |
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2021
- 2021-09-22 CN CN202122293110.XU patent/CN215653855U/en active Active
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Address after: 262714 Shouguang Yangkou Chemical Industrial Park, Weifang City, Shandong Province (West of Yanglin road and north of Donghai Road) Patentee after: Shandong XURUI New Material Co.,Ltd. Address before: 262714 Bohai Industrial Park, Yangkou Town, Shouguang City, Weifang City, Shandong Province Patentee before: SHANDONG SUNRIS CO.,LTD. |