CN104888491A - Condensation trapping device for pentachloropyridine - Google Patents
Condensation trapping device for pentachloropyridine Download PDFInfo
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- CN104888491A CN104888491A CN201510302019.6A CN201510302019A CN104888491A CN 104888491 A CN104888491 A CN 104888491A CN 201510302019 A CN201510302019 A CN 201510302019A CN 104888491 A CN104888491 A CN 104888491A
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Abstract
The invention discloses a condensation trapping device for pentachloropyridine. The condensation trapping device comprises a reactor, wherein the bottom of the reactor is connected with a trapping system by virtue of a condensation pipe, the trapping system is also provided with an air closing machine, and the condensation pipe is externally provided with a first-level cooling jacket and a second-level cooling jacket from top to bottom; the first-level cooling jacket and the second-level cooling jacket are respectively provided with a water inlet pipeline, a water outlet pipeline and a corresponding valve, and the water outlet pipeline of the first-level cooling jacket is connected with the water inlet pipeline of the second-level cooling jacket. Such a structure is adopted, so that the capacity can be greatly improved, the product quality is ensured, and continuous discharging production can be realized.
Description
Technical field
The invention belongs to chemical engineering field, relate to one and to sublimate capturing device, be specially a kind of capturing device of efficiently sublimating produced for penta chloropyridine.
Background technology
Penta chloropyridine is a kind of important intermediate of organic synthesis, it is the important source material of producing the Insecticides (tech) & Herbicides (tech)s such as chlopyrifos, clopyralid, fluroxypyr, simultaneously penta chloropyridine is also medicine intermediate, can be used for producing cardiovascular, the cerebrovascular and the former medicine of other medicines.In existing penta chloropyridine is produced, reactor product is out a kind of penta chloropyridine gas, need to realize sublimating becoming powdery penta chloropyridine product by device of sublimating, obtain finally by trapping, when chuck originally cools, temperature is wayward, easily occur the too high fusing point easily making product exceed penta chloropyridine of upper temp, trap produces a large amount of cakings, and product not easily takes out; Temperature of lower is too low makes pipe generation blocking of sublimating, and cannot produce.
Summary of the invention
The object of the invention is for above problem, a kind of capturing device of sublimating for penta chloropyridine is provided, the blocking of pipe of originally sublimating and a difficult problem for trap caking can be solved, ensure that product is all collected in powdery, and can production capacity be improved, realize the continuous prodution of product.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of capturing device of sublimating for penta chloropyridine, comprise reactor, the bottom of reactor is connected to trapping system by pipe of sublimating, trapping system also Blowing stopper is installed, described pipe of sublimating is outer is provided with one-level cooling jacket and secondary cooling jacket from top to bottom, one-level cooling jacket and secondary cooling jacket are equipped with inlet channel, outlet conduit and corresponding valve, and wherein the outlet conduit of one-level cooling jacket is connected to the inlet channel of secondary cooling jacket.
This capturing device of sublimating also comprises the second reactor, and the second reactor is connected to trapping system by the second pipe of sublimating, and the second pipe of sublimating is identical with the structure of pipe of sublimating.Owing to all adopting an a reactor corresponding trap system during traditional mode of production, production efficiency is low; Inventor, by Improvement, increases a reactor, and guarantees the product trapping work that can complete two reactors by a set of trap system.Under the prerequisite not changing original device one to one, not needing to increase capital expenditure only need increase the object that a reactor can reach increase production capacity on original reactor side.
Meanwhile, because the second pipe of sublimating is different from the temperature of pipe of sublimating, therefore to sublimate respectively.
Described second pipe of sublimating is parallel to each other with pipe of sublimating, and mutually vertical with the top of trapping system; Guarantee that two reactors can share one and catch level system.The material of pipe of sublimating is 316L, and diameter is 108-159mm.
The second described reactor and second is sublimated between pipe and is also provided with gas phase pipe, in the middle part of gas phase pipe, expansion joint is housed, and it is provided with heating tape with second one end that pipe is connected of sublimating.Because the second reactor and trapping system are directly distant, need to ensure that temperature stabilization in this gas phase pipe is at 180-230 DEG C, therefore increase heat tracing pipe, companion's hot temperature degree of heating tape is 180-230 DEG C, by the boiling temperature of accompanying heat to maintain penta chloropyridine.Expansion joint adopts 316L hose material to make, and flange lap joint flange can be connected with gas phase pipe well.
Described gas phase pipe tilts to install, and the corner that two ends connect is carried out excessively round and smooth, in order to avoid part penta chloropyridine is in corner crystallization.
Described trapping system adopts one-level trap, secondary trap, three-stage trapping device and vavuum pump to be in series, by three-stage trapping device, and the penta chloropyridine powder that can effectively collect sublimates obtains.
Described Blowing stopper is arranged on the bottom of one-level trap, and rotor portion lining PO anticorrosion, junction seals, in order to avoid affect the vacuum state of whole trapping system.
The gas temperature passed through in the pipe of sublimating of described one-level cooling jacket is 120-130 DEG C; For cooling the high temperature penta chloropyridine gas of autoreactor, by regulating the valve at cooling water inlet pipe road and outlet conduit place, the gas temperature that the pipe that ensures to sublimate passes through.
The gas temperature passed through in the pipe of sublimating of described secondary cooling jacket is 90-100 DEG C, cooling is from the cooled device penta chloropyridine gas of sublimating of one-level, outlet conduit due to one-level cooling jacket is connected to the inlet channel of secondary cooling jacket, by regulating keep certain cold and hot ratio to guarantee to sublimate gas temperature that pipe bottom passes through, complete the process of sublimating of penta chloropyridine at this, penta chloropyridine gas becomes powder and enters trapping system.
The present invention is owing to adopting said structure design, and the cooling inflow temperature of one-level cooling jacket is lower, and the inflow temperature of secondary cooling jacket is higher, is the mixing water of outlet warm water with one-level cooling water inlet of one-level cooling jacket.By sublimating in pipe and the steady decline of temperature in one-level cooling jacket and secondary cooling jacket, more easily control de-sublimation temperature, prevent the trap system caking caused because upper temp is too high, also can avoid the blockage of sublimating caused because temperature of lower is too low, improve the quality of products; In addition, owing to being provided with two group reaction devices, significantly can promote operating efficiency, increase production capacity, realize discharging continuous prodution.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Further illustrate the present invention below in conjunction with embodiment, but the scope of protection of present invention is not limited to the scope of embodiment statement.
As shown in Figure 1, a kind of capturing device of sublimating for penta chloropyridine, comprise reactor 1, the bottom of reactor is connected to trapping system 3 by pipe 2 of sublimating, trapping system 3 Blowing stopper 4 is also installed, described pipe 2 of sublimating is outer is provided with one-level cooling jacket 21 and secondary cooling jacket 22 from top to bottom, one-level cooling jacket 21 and secondary cooling jacket 22 are equipped with inlet channel, outlet conduit and corresponding valve, and wherein the outlet conduit of one-level cooling jacket 21 is connected to the inlet channel of secondary cooling jacket 22.
In preferred scheme, this capturing device of sublimating also comprises the second reactor 5, second reactor 5 and is connected to trapping system 3 by the second pipe 6 of sublimating, and the second pipe 6 of sublimating is identical with the structure of pipe 2 of sublimating.
Further, the described second sublimate pipe 6 is parallel to each other with pipe 2 of sublimating, and mutually vertical with the top of trapping system 3.
Further, described the second reactor 5 and second is sublimated between pipe 6 and is also provided with gas phase pipe 7, and expansion joint 71 is housed in the middle part of gas phase pipe 7, and it is provided with heating tape 72 with second one end that pipe 6 is connected of sublimating.
Further, described gas phase pipe 7 tilts to install, and the corner that two ends connect is carried out excessively round and smooth.
Further, companion's hot temperature degree of described heating tape 72 is 180-230 DEG C.
Further, described trapping system 3 adopts one-level trap 31, secondary trap 32, three-stage trapping device 33 and vavuum pump 34 to be in series.
Further, described Blowing stopper 4 is arranged on the bottom of one-level trap 31, and junction seals.
Further, the gas temperature passed through in the pipe 2 of sublimating of described one-level cooling jacket 21 is 120-130 DEG C.
Further, the gas temperature passed through in the pipe 2 of sublimating of described secondary cooling jacket 22 is 90-100 DEG C.
When using this device, pyridine and chlorine are through the effect of high temperature and catalyst, generate penta chloropyridine gas, from the cooling of reactor gas out through one-level cooling jacket and secondary cooling jacket, by the flow of the water inlet and delivery port that effectively regulate cooling jacket, ensure that penta chloropyridine is when gas becomes powder, the non-crystallizable blocking of pipe of sublimating, trap does not lump.From the second reactor gas out due to away from trapping system, gas phase pipe needs before entering pipe of sublimating to add tracing thermal-insulating and anticorrosion expansion joint, then cools through I and II cooling jacket.The application of airlock, can ensure the continuous prodution of product discharge.The apparatus of efficiently sublimating adopting above-described embodiment to provide, can transform the penta chloropyridine project of original annual output 1000 tons, under the condition not increasing capital construction, production capacity can be made to reach 2000 tons.
Claims (10)
1. the capturing device of sublimating for penta chloropyridine, it is characterized in that: comprise reactor (1), the bottom of reactor is connected to trapping system (3) by pipe (2) of sublimating, trapping system (3) Blowing stopper (4) is also installed, described pipe (2) of sublimating is provided with one-level cooling jacket (21) and secondary cooling jacket (22) outward from top to bottom, one-level cooling jacket (21) and secondary cooling jacket (22) are equipped with inlet channel, outlet conduit and corresponding valve, wherein the outlet conduit of one-level cooling jacket (21) is connected to the inlet channel of secondary cooling jacket (22).
2. device according to claim 1, it is characterized in that: this capturing device of sublimating also comprises the second reactor (5), second reactor (5) is connected to trapping system (3) by the second pipe (6) of sublimating, and the second pipe (6) of sublimating is identical with the structure of managing (2) of sublimating.
3. device according to claim 2, is characterized in that: the described second pipe (6) of sublimating is managed (2) and is parallel to each other with sublimating, and mutually vertical with the top of trapping system (3).
4. device according to claim 2, it is characterized in that: described the second reactor (5) and second is sublimated to manage between (6) and is also provided with gas phase pipe (7), expansion joint (71) is equipped with at gas phase pipe (7) middle part, and it is sublimated and manage one end that (6) be connected with second and be provided with heating tape (72).
5. device according to claim 4, is characterized in that: described gas phase pipe (7) tilts to install, and the corner that two ends connect is carried out excessively round and smooth, and this gas phase pipe (7) is 5-15 ° with the angle of horizontal direction.
6. the device according to claim 4 or 5, is characterized in that: companion's hot temperature degree of described heating tape (72) is 180-230 DEG C.
7. device according to claim 1, is characterized in that: described trapping system (3) adopts one-level trap (31), secondary trap (32), three-stage trapping device (33) and vavuum pump (34) to be in series.
8. device according to claim 7, is characterized in that: described Blowing stopper (4) is arranged on the bottom of one-level trap (31), and junction seals.
9. device according to claim 1, is characterized in that: the gas temperature passed through in the pipe (2) of sublimating of described one-level cooling jacket (21) is 120-130 DEG C.
10. device according to claim 1, is characterized in that: the gas temperature passed through in the pipe (2) of sublimating of described secondary cooling jacket (22) is 90-100 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510302019.6A CN104888491B (en) | 2015-06-04 | 2015-06-04 | A kind of capturing device of sublimating for penta chloropyridine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510302019.6A CN104888491B (en) | 2015-06-04 | 2015-06-04 | A kind of capturing device of sublimating for penta chloropyridine |
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| CN104888491A true CN104888491A (en) | 2015-09-09 |
| CN104888491B CN104888491B (en) | 2016-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108421501A (en) * | 2018-05-21 | 2018-08-21 | 宜昌恒友化工股份有限公司 | The drawing mechanism and discharging method of penta chloropyridine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2839534A (en) * | 1956-08-31 | 1958-06-17 | Pittsburgh Coke & Chemical Co | Production of 2-chloropyridine |
| CN1421435A (en) * | 2001-11-27 | 2003-06-04 | 中国科学院成都有机化学研究所 | Pyridine chloridizing process of producing mixture of pyridine tetrachloride and pyridine pentachloride |
| CN101768107A (en) * | 2010-01-13 | 2010-07-07 | 北京颖泰嘉和科技股份有限公司 | Method for preparing polychlorinated pyridine |
| CN204684714U (en) * | 2015-06-04 | 2015-10-07 | 宜昌恒友化工有限公司 | A kind of capturing device of sublimating for penta chloropyridine |
-
2015
- 2015-06-04 CN CN201510302019.6A patent/CN104888491B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2839534A (en) * | 1956-08-31 | 1958-06-17 | Pittsburgh Coke & Chemical Co | Production of 2-chloropyridine |
| CN1421435A (en) * | 2001-11-27 | 2003-06-04 | 中国科学院成都有机化学研究所 | Pyridine chloridizing process of producing mixture of pyridine tetrachloride and pyridine pentachloride |
| CN101768107A (en) * | 2010-01-13 | 2010-07-07 | 北京颖泰嘉和科技股份有限公司 | Method for preparing polychlorinated pyridine |
| CN204684714U (en) * | 2015-06-04 | 2015-10-07 | 宜昌恒友化工有限公司 | A kind of capturing device of sublimating for penta chloropyridine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108421501A (en) * | 2018-05-21 | 2018-08-21 | 宜昌恒友化工股份有限公司 | The drawing mechanism and discharging method of penta chloropyridine |
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| CN104888491B (en) | 2016-09-07 |
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Address after: Yao Hong Kong Chemical Industrial Park 443200 Hubei city of Zhijiang Province Patentee after: YICHANG HENGYOU CHEMICAL CO.,LTD. Address before: 443200 Hubei city of Yichang province Zhijiang City Yao Hong Kong Chemical Industrial Park Patentee before: YICHANG HENGYOU CHEMICAL Co.,Ltd. |
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Denomination of invention: A Agglomeration and Trapping Device for Pentachloropyridine Effective date of registration: 20230421 Granted publication date: 20160907 Pledgee: Agricultural Bank of China Limited Zhijiang sub branch Pledgor: YICHANG HENGYOU CHEMICAL CO.,LTD. Registration number: Y2023980038568 |
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