CN214971827U - Continuous distillation device for glycidyl derivatives - Google Patents
Continuous distillation device for glycidyl derivatives Download PDFInfo
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- CN214971827U CN214971827U CN202121036876.3U CN202121036876U CN214971827U CN 214971827 U CN214971827 U CN 214971827U CN 202121036876 U CN202121036876 U CN 202121036876U CN 214971827 U CN214971827 U CN 214971827U
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Abstract
The utility model discloses a continuous distillation plant of glycidyl derivative, including stills, first condenser, first holding vessel, controller, first valve, stills's output is connected with the input of first condenser through first valve, still includes: a preheating kettle for preheating the mixed raw materials when the distillation kettle is used for distillation; the preheating kettle is connected with the distillation kettle through a second valve; a third valve; the second condenser is used for condensing steam generated in the preheating process and is connected with a steam output port of the preheating kettle through a third valve; the second collecting tank is connected with the input end of the second condenser; the input end of the cache tank is connected with the output end of the first condenser, and the output end of the cache tank is connected with the input end of the first collecting tank; the first valve, the second valve and the third valve are respectively and electrically connected with the controller. The utility model discloses can promote distillation efficiency.
Description
Technical Field
The utility model relates to a continuous distillation plant of glycidyl derivative.
Background
The allyloxy glycidyl ether is a highly toxic and flammable liquid, pungent and pungent smoke is stimulated by release of hot substances in a fire scene during combustion, and the storehouse is ventilated and dried at a low temperature during storage and transportation; and storing and transporting the oxidant separately. The epoxy resin is used as a raw material of polyurethane rubber and a diluent of epoxy resin, is used as a fiber modifier, a stabilizer of chlorinated organic matters, a reactive diluent and a modifier of synthetic resin, contains carbon-carbon double bonds and epoxy bonds in molecules, and is an important polymerization monomer and an important organic synthesis intermediate.
Current methods for preparing allyloxy glycidyl ethers, one of which is accomplished by distillation. Need use distillation plant in the distillation separation process, traditional distillation plant comprises stills, condensers, the collection tank, the distillation plant of this kind of structure is after the distillation, need discharge the remaining raw materials in the stills, in discharging this remaining raw materials period, stills can not input new raw materials, after remaining raw materials discharge, when adding new raw materials to stills in, add the raw materials to the evaporation state and need longer time, consequently, traditional distillation plant's efficiency is lower. In addition, after the conventional distillation still is used for a long time, some materials can be attached to the inner wall of the distillation still, scale formation is caused after long-term accumulation, and adverse effects such as corrosivity can be caused on the distillation still.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a continuous distillation plant of glycidyl derivative, the utility model discloses can promote distillation efficiency.
The technical scheme for solving the technical problems is as follows:
continuous distillation plant of glycidyl derivative, including stills, first condenser, first holding vessel, controller, first valve, stills's output is connected with the input of first condenser through first valve, still includes:
a preheating kettle for preheating the mixed raw materials when the distillation kettle is used for distillation;
the preheating kettle is connected with the distillation kettle through a second valve;
a third valve;
the second condenser is used for condensing steam generated in the preheating process and is connected with a steam output port of the preheating kettle through a third valve;
the second collecting tank is connected with the input end of the second condenser;
the input end of the cache tank is connected with the output end of the first condenser, and the output end of the cache tank is connected with the input end of the first collecting tank;
the first valve, the second valve and the third valve are respectively and electrically connected with the controller.
Further, still include:
the concentration detector is arranged on the buffer tank to detect the concentration of the allyloxy glycidyl ether in the buffer tank;
the buffer tank is connected with the first collecting tank through the fourth valve;
and the buffer tank is connected with the distillation kettle through the fifth valve.
The controller is respectively and electrically connected with the concentration detector, the fourth valve and the fifth valve, and the controller controls the fourth valve and the fifth valve to be opened and closed according to signals provided by the concentration detector.
The second collection tank is also connected to a still pot to input the collected allyloxy glycidyl ether to the still pot.
Further, still include:
the liquid level detection meter is used for detecting the liquid level in the second collection tank, is connected with the second collection tank and is electrically connected with the controller;
and the sixth valve and the second collecting tank are connected with the distillation kettle through the sixth valve.
Further, still include scraping mechanism, scraping mechanism includes:
the driver is positioned outside the distillation kettle and is electrically connected with the controller;
one end of the transmission mechanism is connected with one end of the driver, the other end of the transmission mechanism extends into the distillation still, and a sealing assembly is arranged between the distillation still and the transmission mechanism;
and the scraping cutter disc is connected with the other end of the transmission mechanism.
Further, the transmission mechanism includes:
one end of the sleeve is fixedly connected with the output end of the driver, and the inner wall surface of the sleeve is provided with threads;
one part of the circumferential surface of the transmission rod is provided with threads, the transmission rod is in threaded connection with the sleeve, and the other part of the circumferential surface of the transmission rod is a smooth surface;
the scraper disc is provided with a notch, the inner wall of the distillation kettle is provided with a guide component, and the notch is in sliding fit with the guide component.
Further, the doctor blade disc comprises:
the scraper disc body is provided with a through hole;
and the support rod is connected with the scraper disk body, and a channel for air flow to pass through is formed between the support rod and the scraper disk body.
Having adopted above-mentioned scheme, preheating the raw materials that need the distillation in advance through preheating the cauldron, unloading the back at the stills end, will preheat the interior raw materials of preheating of cauldron and input the stills, stills itself is in hotter state this moment, consequently, preheat the interior raw materials of cauldron and enter into the stills in the back, the difference in temperature between raw materials and the stills is very little, is favorable to shortening the time of raw materials heating vaporization like this for distillation plant forms serialization production. In the initial stage, the controller controls the fourth valve to close and controls the fifth valve to open according to the detection signal of the concentration detector, so that the allyloxy glycidyl ether steam generated by the distillation kettle has low concentration and is not in accordance with the use requirement, the allyloxy glycidyl ether in the buffer tank flows back to the distillation kettle, and when the concentration of the allyloxy glycidyl ether steam in the buffer tank reaches the set requirement, the controller closes the fifth valve and opens the fourth valve, so that the allyloxy glycidyl ether in the buffer tank is output to the first collection tank to be used as a finished product.
Drawings
FIG. 1 is a schematic view of a continuous distillation apparatus for glycidyl derivatives of the present invention;
FIG. 2 is a schematic view of a scraper disc;
reference numbers in the drawings:
the device comprises a distillation kettle 1, a guide component 1a, a first condenser 2, a first collecting tank 3, a preheating kettle 4, a second condenser 5, a second collecting tank 6, a buffer tank 7, a concentration detector 8, a liquid level detector 9, a driver 10, a scraper disc 11, a notch 11a, a cutter disc body 11b, a support rod 11c, a channel 11d, a sleeve 12 and a transmission rod 13;
the valve comprises a controller A, a first valve B, a second valve C, a third valve D, a fourth valve E, a fifth valve F and a sixth valve G.
Detailed Description
The present invention will be further described with reference to fig. 1 to 2.
The utility model discloses a continuous distillation plant of glycidyl derivative, including stills 1, first condenser 2, first holding vessel 3, controller A, first valve B, preheat cauldron 4, second valve C, third valve D, second condenser 5, second holding vessel 6, buffer tank 7, explain in detail below each part and the relation between them respectively:
the output end of the distillation still 1 is connected with the input end of the first condenser 2 through the first valve B, the first valve B is electrically connected with the controller A, steam generated during the working of the distillation still 1 is output to the first condenser 2, and the steam is condensed in the first condenser 2 to form liquid. The first valve B is used to open or close a passage between the distillation still 1 and the first condenser 2.
Preheat cauldron 4 and preheat the mixed raw materials when stills 1 distills, in this embodiment, when still 1 distills the end after the residual material of unloading, preheat cauldron 4 and preheat the distilled raw materials of needs in advance, unload at stills 1 end after, the raw materials that preheat in cauldron 4 are imported into stills 1, stills 1 itself is in hotter state this moment, consequently, preheat the raw materials in cauldron 4 and enter into stills 1 in the back, the difference in temperature between raw materials and the stills 1 is very little, be favorable to shortening the time of raw materials heating vaporization like this, make distillation apparatus form serialization production.
The preheating kettle 4 is connected with the distillation kettle 1 through a second valve C, and the second valve C and a third valve D are electrically connected with the controller A. During the distillation period of the distillation still 1, the controller A controls the second valve C to be closed, namely, the raw material preheated in the preheating still 4 can not be fed into the distillation still 1. Only after the distillation still 1 is unloaded, the controller can open the second valve C, so that the raw material in the preheating kettle 4 enters the distillation still 1.
The second condenser 5 is used for condensing steam generated in the preheating process, the second condenser 5 is connected with a steam output port of the preheating kettle 4 through a third valve D, and the third valve D is electrically connected with the controller A. The preheating kettle 4 may generate steam during the preheating process of the raw material, and since allyloxy glycidyl ether is a highly toxic and flammable liquid, in a vaporization state, although the amount of steam may be small, the safety hazard still exists, and therefore, the steam must be condensed and collected by the second condenser 5 to avoid causing safety accidents.
The second collection tank 6 is connected to the input end of the second condenser 5, the vapor condensed by the second condenser 5 is collected in the second collection tank 6, and the concentration of the liquid in the collection tank 6 is low, so that the vapor is not suitable for being directly used as a finished product.
Still include the liquid level detection meter 9, the sixth valve G that detect the liquid level in the second collection tank 6, liquid level detection meter 9 is connected with second collection tank 6, liquid level detection meter 9 and controller A electric connection, and second collection tank 6 is connected with stills 1 through sixth valve G. Since allyloxy glycidyl ether collected in the second collection tank 6 cannot be discharged into the distillation still 1 at any time, the liquid level in the second collection tank 6 is detected by the liquid level detector 9, and when the liquid level reaches a set value, the controller a controls the sixth valve G to open to discharge allyloxy glycidyl ether in the second collection tank 6 into the distillation still 1.
The input end of the cache tank 7 is connected with the output end of the first condenser 2, the output end of the cache tank 7 is connected with the input end of the first collecting tank 3, the cache tank 7 is used for prestoring allyloxy glycidyl ether output by the first condenser 2, the system further comprises a concentration detector 8, a fourth valve E and a fifth valve F, the concentration detector 8 is installed on the cache tank 7 to detect the concentration of allyloxy glycidyl ether in the cache tank 7, and the cache tank 7 is connected with the first collecting tank 3 through the fourth valve E; the buffer tank 7 is connected with the distillation kettle 1 through a fifth valve F. The controller A is respectively and electrically connected with the concentration detector 8, the fourth valve E and the fifth valve F, and the controller A controls the fourth valve E and the fifth valve F to be switched on and off according to signals provided by the concentration detector 8.
In the initial stage, the controller a controls the fourth valve E to close, controls the fifth valve F to open, and makes the allyloxy glycidyl ether in the buffer tank 7 flow back to the distillation still 1, and when the concentration of the allyloxy glycidyl ether vapor in the buffer tank 7 reaches the set requirement, the controller a closes the fifth valve F and opens the fourth valve E, so that the allyloxy glycidyl ether in the buffer tank 7 is output to the first collection tank 3 to be used as a finished product.
In this embodiment, still including scraping the mechanism, scrape the mechanism and include driver 10, drive mechanism, scraper disc 11, driver 10 is located stills 1's outside, driver 10 and controller A electric connection, and drive mechanism's one end is connected with the one end of driver 10, and drive mechanism's the other end stretches into stills 1 inside, is equipped with seal assembly between stills 1 and drive mechanism, and scraper disc 11 is connected with drive mechanism's the other end.
The transmission mechanism comprises a sleeve 12 and a transmission rod 13, one end of the sleeve 12 is fixedly connected with the output end of the driver 10, and the inner wall surface of the sleeve 12 is provided with threads; one part of the circumferential surface of the transmission rod 13 is provided with threads, the transmission rod 13 is in threaded connection with the sleeve 12, and the other part of the circumferential surface of the transmission rod 13 is a smooth surface; the scraper disc 11 is provided with a notch 11a, the inner wall of the distillation still 1 is provided with a guide component 1a, and the notch 11a is in sliding fit with the guide component 1 a.
The scraper disc 11 comprises a scraper disc body 11b and a support rod 11c, a through hole is formed in the scraper disc body 11b, and after the support rod 11c is connected with the scraper disc body 11b, a channel 11d for air flow to pass through is formed between the support rod 11c and the scraper disc body 11 b.
The driver 10 works, the driver 10 drives the sleeve 12 to rotate, and the sleeve slides with the guide component 1a due to the notch 11a on the scraper disk 11, so that when the sleeve 12 rotates, the scraper disk 11 and the transmission mechanism can only do lifting linear motion, and when the scraper disk 11 moves up and down, a scraping effect is formed on the inner wall of the distillation still 1, so that residues attached to the inner wall of the distillation still 1 are removed.
Claims (7)
1. Continuous distillation plant of glycidyl derivative, including stills (1), first condenser (2), first accumulator (3), controller (A), first valve (B), the output of stills (1) is connected with the input of first condenser (2) through first valve (B), its characterized in that still includes:
a preheating kettle (4) for preheating the mixed raw materials when the distillation kettle (1) is used for distillation;
the preheating kettle (4) is connected with the distillation kettle (1) through a second valve (C);
a third valve (D);
the second condenser (5) is used for condensing steam generated in the preheating process, and the second condenser (5) is connected with a steam output port of the preheating kettle (4) through a third valve (D);
the second collecting tank (6), the second collecting tank (6) is connected with the input end of the second condenser (5);
the input end of the buffer tank (7) is connected with the output end of the first condenser (2), and the output end of the buffer tank (7) is connected with the input end of the first collecting tank (3);
the first valve (B), the second valve (C) and the third valve (D) are respectively electrically connected with the controller (A).
2. The apparatus for continuous distillation of glycidyl derivatives according to claim 1, further comprising:
a concentration detector (8), wherein the concentration detector (8) is installed on the buffer tank (7) to detect the concentration of allyloxy glycidyl ether in the buffer tank (7);
the buffer tank (7) is connected with the first collecting tank (3) through the fourth valve (E);
and the buffer tank (7) is connected with the distillation kettle (1) through the fifth valve (F).
The controller (A) is respectively electrically connected with the concentration detector (8), the fourth valve (E) and the fifth valve (F), and the controller (A) controls the fourth valve (E) and the fifth valve (F) to be switched on and off according to signals provided by the concentration detector (8).
3. The continuous distillation apparatus for glycidyl derivatives according to claim 1, characterized in that the second collection tank (6) is further connected to the still pot (1) to feed the collected allyloxy glycidyl ether into the still pot (1).
4. The apparatus for continuous distillation of glycidyl derivatives according to claim 3, further comprising:
the liquid level detection meter (9) is used for detecting the liquid level in the second collection tank (6), the liquid level detection meter (9) is connected with the second collection tank (6), and the liquid level detection meter (9) is electrically connected with the controller (A);
and the sixth valve (G) and the second collecting tank (6) are connected with the distillation kettle (1) through the sixth valve (G).
5. The continuous distillation apparatus for glycidyl derivatives according to claim 1, further comprising a scraping mechanism comprising:
the driver (10), the driver (10) locates outside the distillation still (1), the driver (10) is connected with electrical behavior of the controller (A);
one end of the transmission mechanism is connected with one end of the driver (10), the other end of the transmission mechanism extends into the distillation still (1), and a sealing assembly is arranged between the distillation still (1) and the transmission mechanism;
the scraper disc (11), the scraper disc (11) is connected with the other end of the transmission mechanism.
6. The apparatus for continuous distillation of glycidyl derivatives according to claim 5, wherein the transmission mechanism comprises:
one end of the sleeve (12) is fixedly connected with the output end of the driver (10), and the inner wall surface of the sleeve (12) is provided with threads;
one part of the peripheral surface of the transmission rod (13) is provided with threads, the transmission rod (13) is in threaded connection with the sleeve (12), and the other part of the peripheral surface of the transmission rod (13) is a smooth surface;
be equipped with notch (11a) on scraping blade dish (11), be equipped with guide part (1a) on the inner wall of stills (1), notch (11a) and guide part (1a) sliding fit.
7. The apparatus for the continuous distillation of glycidyl derivatives according to claim 5, characterized in that the scraper disk (11) comprises:
the scraper disc body (11b) is provided with a through hole;
and after the supporting rod (11c) is connected with the scraper disc body (11b), a channel (11d) for air flow to pass through is formed between the supporting rod (11c) and the scraper disc body (11 b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121036876.3U CN214971827U (en) | 2021-05-14 | 2021-05-14 | Continuous distillation device for glycidyl derivatives |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121036876.3U CN214971827U (en) | 2021-05-14 | 2021-05-14 | Continuous distillation device for glycidyl derivatives |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214971827U true CN214971827U (en) | 2021-12-03 |
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ID=79134794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121036876.3U Active CN214971827U (en) | 2021-05-14 | 2021-05-14 | Continuous distillation device for glycidyl derivatives |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214971827U (en) |
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2021
- 2021-05-14 CN CN202121036876.3U patent/CN214971827U/en active Active
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