CN217698606U - 5-norbornene-2-aldehyde tail gas absorption device - Google Patents
5-norbornene-2-aldehyde tail gas absorption device Download PDFInfo
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- CN217698606U CN217698606U CN202221395622.5U CN202221395622U CN217698606U CN 217698606 U CN217698606 U CN 217698606U CN 202221395622 U CN202221395622 U CN 202221395622U CN 217698606 U CN217698606 U CN 217698606U
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Abstract
The utility model belongs to the chemical production field, especially, 5-norbornene-2-aldehyde tail gas absorbing device, can not make 5-norbornene-2-aldehyde, cyclopentadiene and acrolein by fine absorption processing to current technology, cause the waste, the cost is higher and the tail gas smell is great, and is great to the surrounding environment influence, and the personnel of carrying out the operation under this environment for a long time very easily produce the problem of occupational disease, now propose following scheme, it includes that absorption liquid storage tank, one-level spray absorption system, second grade spray absorption system, tertiary spray absorption system and level four water spray absorption system, one-level spray absorption system and second grade spray absorption system all set up on the absorption liquid storage tank, the utility model discloses 5-norbornene-2-aldehyde, cyclopentadiene, acrolein in the absorption tail gas that can be abundant reach the purpose of retrieving, reduction in production cost, and can effectual reduction to the pollution of environment, avoided the production of the latent occupational disease of staff.
Description
Technical Field
The utility model relates to a chemical production technical field especially relates to a 5-norbornene-2-aldehyde tail gas absorbing device.
Background
5-norbornene-2-aldehyde is a chemical substance, the molecular formula is C8H10O, a certain amount of tail gas can be generated in the chemical production process, the traditional process is to recover various chemical components in the tail gas by adopting primary or secondary condensation, but the traditional process can not well absorb and treat the 5-norbornene-2-aldehyde, cyclopentadiene and acrolein in the recovery process, so that waste is caused, the cost is high, the smell of the tail gas is large, the influence on the surrounding environment is large, and occupational diseases are easy to generate for personnel operating in the environment for a long time.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problems that the prior art has the process which can not lead 5-norbornene-2-aldehyde, cyclopentadiene and acrolein to be well absorbed and treated, causing waste, having higher cost and larger tail gas smell, greatly influencing the surrounding environment, and easily generating occupational diseases for long-term personnel operating under the environment, and providing the 5-norbornene-2-aldehyde tail gas absorption device.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a 5-norbornene-2-aldehyde tail gas absorbing device, includes that absorption liquid storage tank, one-level spray absorption system, second grade spray absorption system, tertiary absorption system and the level four water sprays absorption system, the one-level sprays absorption system and the second grade sprays absorption system and all sets up on the absorption liquid storage tank, and the tertiary absorption system that sprays is connected with second grade spray absorption system, and level four water sprays absorption system and tertiary spray absorption system and is connected, and the one-level sprays absorption system, the second grade sprays absorption system, tertiary spray absorption system and level four water sprays and all is provided with on the absorption system and filters the interception mechanism.
Preferably, the first-stage spray absorption system comprises a first-stage absorption circulating pump, a first-stage absorption condenser and a first-stage absorption tower, the first-stage absorption tower is arranged at the top of the absorption liquid storage tank, the first-stage absorption condenser is connected with the first-stage absorption tower, the output end of the first-stage absorption circulating pump is connected with the first-stage absorption condenser, the input end of the first-stage absorption circulating pump is connected with a first input pipe, the first input pipe is connected with the absorption liquid storage tank, the filtering and intercepting mechanism is arranged on the first input pipe, and 5-norbornene-2-aldehyde tail gas containing relatively more cyclopentadiene, a small amount of acrolein and a small amount of 5-norbornene-2-aldehyde is effectively absorbed through the first-stage absorption tower.
Preferably, the second-stage spraying absorption system comprises a second-stage absorption circulating pump, a second-stage absorption condenser and a second-stage absorption tower, the second-stage absorption tower is arranged at the top of the absorption liquid storage tank, the second-stage absorption condenser is connected with the second-stage absorption tower, the output end of the second-stage absorption circulating pump is connected with the second-stage absorption condenser, the input end of the second-stage absorption circulating pump is connected with a second input pipe, the second input pipe is connected with the absorption liquid storage tank, the filtering and intercepting mechanism is arranged on the second input pipe, and 5-norbornene-2-aldehyde tail gas containing relatively more cyclopentadiene, a small amount of acrolein and a small amount of 5-norbornene-2-aldehyde is effectively reabsorbed through the second-stage absorption tower.
Preferably, tertiary absorption system that sprays is including hydrochloric acid absorption tower and hydrochloric acid absorption tower circulating pump, the top and the top of second grade absorption tower of hydrochloric acid absorption tower are connected, and the top and the output of hydrochloric acid absorption tower circulating pump of hydrochloric acid absorption tower are connected, the input of hydrochloric acid absorption tower circulating pump is connected with the third input tube, the third input tube is connected with the bottom of hydrochloric acid absorption tower, it sets up on the third input tube to filter the interception mechanism, the principle that the acid absorption tower adopted hydrochloric acid and cyclopentadiene to react, spray the absorption with 1% -5% hydrochloric acid.
Preferably, level four water sprays absorption system is including water absorption tower and water absorption circulating pump, and the top of water absorption tower is connected with the top of hydrochloric acid absorption tower, and the top of water absorption tower is connected with the output of water absorption circulating pump, and the input of water absorption circulating pump is connected with the fourth input tube, and the fourth input tube is connected with the bottom of water absorption tower, filters the interception mechanism and sets up on the fourth input tube, contains noncondensable gas and the hydrogen chloride of minim to last tail gas through the water absorption tower and absorbs.
Preferably, filter interception mechanism is including filtering the interception casing, the top of filtering the interception casing is connected with the feed liquor pipe, the outside of filtering the interception casing is connected with the fluid-discharge tube, rotatory opening has been seted up to the bottom of filtering the interception casing, the rotor plate is installed to the rotatory opening internal rotation, and seted up first annular spout in the rotatory opening, slidable mounting has first sliding ring in the first annular spout, the outside of rotor plate is located to the fixed cover of first sliding ring, be provided with the blow off pipe on the rotor plate, be provided with the valve on the blow off pipe, first sliding ring can rotate along first annular spout.
Preferably, the top of rotor plate is provided with a filter screen section of thick bamboo, and the top of filtering the interception casing is provided with the spiral and scrapes the strip, and the spiral is scraped the strip and is cooperateed with a filter screen section of thick bamboo, has seted up second annular spout on the top inner wall of filtering the interception casing, and slidable mounting has the second sliding ring in the second annular spout, and the bottom and the top of a filter screen section of thick bamboo of second sliding ring are connected, and the second sliding ring can rotate along second annular spout.
Preferably, the rotary rod is installed to the fluid-discharge tube internal rotation, and the fixed cover in the outside of rotary rod is equipped with the impeller, and the one end of rotary rod extends to the outside of fluid-discharge tube and fixed cover is equipped with the belt lace wheel, and the fixed cover in the outside of blow off pipe is equipped with big belt pulley, and big belt pulley is equipped with same belt with the outside cover of belt lace wheel, and first belt lace wheel can drive big belt pulley rotation and reduce rate through the belt.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses 5-norbornene-2-aldehyde, cyclopentadiene, acrolein in the absorption tail gas that can be abundant reach the purpose of retrieving, reduction in production cost, and can effectual reduction to the pollution of environment, avoided the production of the latent occupational disease of staff.
Drawings
FIG. 1 is a schematic structural diagram of a 5-norbornene-2-aldehyde tail gas absorption apparatus according to the present invention;
FIG. 2 is a schematic structural view of a filtering connection mechanism of the tail gas absorbing device of 5-norbornene-2-aldehyde according to the present invention;
FIG. 3 is a schematic diagram of a second slip ring structure of the tail gas absorbing device of 5-norbornene-2-aldehyde according to the present invention;
FIG. 4 is a schematic perspective view of a rotating plate of the device for absorbing tail gas of 5-norbornene-2-aldehyde according to the present invention;
fig. 5 is a schematic view of a three-dimensional structure of an impeller of the 5-norbornene-2-aldehyde tail gas absorption device according to the present invention.
In the figure: 1 absorption liquid storage tank, 2 first-stage absorption circulating pumps, 3 first-stage absorption condensers, 4 first-stage absorption towers, 5 second-stage absorption circulating pumps, 6 second-stage absorption condensers, 7 second-stage absorption towers, 8 hydrochloric acid absorption towers, 9 hydrochloric acid absorption tower circulating pumps, 10 water absorption towers, 11 water absorption circulating pumps, 12 filtering and intercepting shells, 13 liquid inlet pipes, 14 liquid discharge pipes, 15 rotating plates, 16 first sliding rings, 17 blow-off pipes, 18 valves, 19 filter screen cylinders, 20 spiral scraping strips, 21 second sliding rings, 22 rotating rods, 23 impellers, 24 small belt pulleys, 25 large belt pulleys and 26 belts.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-5, a 5-norbornene-2-aldehyde tail gas absorption device comprises an absorption liquid storage tank 1, a first-level spray absorption system, a second-level spray absorption system, a third-level spray absorption system and a fourth-level water spray absorption system, wherein the first-level spray absorption system and the second-level spray absorption system are both arranged on the absorption liquid storage tank 1, the third-level spray absorption system is connected with the second-level spray absorption system, the fourth-level water spray absorption system is connected with the third-level spray absorption system, and a filtering and intercepting mechanism is arranged on each of the first-level spray absorption system, the second-level spray absorption system, the third-level spray absorption system and the fourth-level water spray absorption system.
In this embodiment, the first-stage spray absorption system includes a first-stage absorption circulation pump 2, a first-stage absorption condenser 3 and a first-stage absorption tower 4, the first-stage absorption tower 4 is disposed on the top of the absorption liquid storage tank 1, the first-stage absorption condenser 3 is connected to the first-stage absorption tower 4, the output end of the first-stage absorption circulation pump 2 is connected to the first-stage absorption condenser 3, the input end of the first-stage absorption circulation pump 2 is connected to a first input pipe, the first input pipe is connected to the absorption liquid storage tank 1, the filtering and intercepting mechanism is disposed on the first input pipe, and the 5-norbornene-2-aldehyde tail gas containing relatively more cyclopentadiene, a small amount of acrolein and a small amount of 5-norbornene-2-aldehyde is effectively absorbed by the first-stage absorption tower 4.
In this embodiment, the second-stage spray absorption system includes a second-stage absorption circulating pump 5, a second-stage absorption condenser 6 and a second-stage absorption tower 7, the second-stage absorption tower 7 is disposed on the top of the absorption liquid storage tank 1, the second-stage absorption condenser 6 is connected to the second-stage absorption tower 7, the output end of the second-stage absorption circulating pump 5 is connected to the second-stage absorption condenser 6, the input end of the second-stage absorption circulating pump 5 is connected to a second input pipe, the second input pipe is connected to the absorption liquid storage tank 1, the filtering and intercepting mechanism is disposed on the second input pipe, and the 5-norbornene-2-aldehyde tail gas containing relatively more cyclopentadiene, a small amount of acrolein and a small amount of 5-norbornene-2-aldehyde is effectively reabsorbed by the second-stage absorption tower 7.
In this embodiment, tertiary absorption system that sprays is including hydrochloric acid absorption tower 8 and hydrochloric acid absorption tower circulating pump 9, the top of hydrochloric acid absorption tower 8 is connected with the top of second grade absorption tower 7, and the top of hydrochloric acid absorption tower 8 is connected with the output of hydrochloric acid absorption tower circulating pump 9, the input of hydrochloric acid absorption tower circulating pump 9 is connected with the third input tube, the third input tube is connected with the bottom of hydrochloric acid absorption tower 8, it sets up on the third input tube to filter the interception mechanism, acid absorption tower 8 adopts the principle of hydrochloric acid and cyclopentadiene reaction, spray the absorption with 1% -5% hydrochloric acid.
In this embodiment, level four water sprays absorption system is including water absorption tower 10 and water absorption circulating pump 11, the top of water absorption tower 10 is connected with hydrochloric acid absorption tower 8's top, and the top of water absorption tower 10 is connected with water absorption circulating pump 11's output, water absorption circulating pump 11's input is connected with the fourth input tube, the fourth input tube is connected with water absorption tower 10's bottom, it sets up on the fourth input tube to filter the interception mechanism, contain noncondensable gas and the hydrogen chloride of minim to final tail gas through water absorption tower 10 and absorb.
In this embodiment, filter interception mechanism is including filtering interception casing 12, the top of filtering interception casing 12 is connected with feed liquor pipe 13, the outside of filtering interception casing 12 is connected with fluid-discharge tube 14, rotatory opening has been seted up to the bottom of filtering interception casing 12, rotor plate 15 is installed to the rotatory opening internal rotation, and seted up first annular spout in the rotatory opening, slidable mounting has first sliding ring 16 in the first annular spout, the outside of rotor plate 15 is located through welded fastening cover to first sliding ring 16, be provided with blow off pipe 17 on the rotor plate 15, be provided with valve 18 on the blow off pipe 17, first sliding ring 16 can rotate along first annular spout.
In this embodiment, the top of the rotating plate 15 is provided with a filter screen cylinder 19, the top of the filtering and intercepting housing 12 is provided with a spiral scraping bar 20, the spiral scraping bar 20 is matched with the filter screen cylinder 19, a second annular chute is formed in the inner wall of the top of the filtering and intercepting housing 12, a second slip ring 21 is slidably installed in the second annular chute, the bottom of the second slip ring 21 is connected with the top of the filter screen cylinder 19, and the second slip ring 21 can rotate along the second annular chute.
In this embodiment, rotary rod 22 is installed to the internal rotation of fluid-discharge tube 14, the fixed cover in the outside of rotary rod 22 is equipped with impeller 23, and rotary rod 22's one end extends to the outside of fluid-discharge tube 14 and is equipped with belt lace wheel 24 through the fixed cover of welding, the outside of blow off pipe 17 is equipped with big belt pulley 25 through the fixed cover of welding, big belt pulley 25 is equipped with same belt 26 with belt lace wheel 24's outside cover, first belt lace wheel 24 can drive big belt pulley 25 through belt 26 and rotate and reduce rate.
In the embodiment, the tail gas of the 5-norbornene-2-aldehyde process contains relatively more cyclopentadiene, a small amount of acrolein and a trace amount of 5-norbornene-2-aldehyde, firstly enters a first-stage absorption tower 4, is sprayed and absorbed by a first-stage spraying absorption system (a first-stage absorption circulating pump 2, a first-stage absorption condenser 3 and a first-stage absorption tower 4), and then enters a second-stage spraying absorption system (a second-stage absorption circulating pump 5, a second-stage absorption condenser 6 and a second-stage absorption tower 7) for spraying and absorption, wherein the two-stage spraying absorption adopts a solvent toluene for dissolving and absorption, the temperature is controlled below 5 ℃, the tail gas after the two-stage absorption contains a trace amount of cyclopentadiene, then enters a third-stage spraying absorption system, and adopts the principle of the reaction of hydrochloric acid and cyclopentadiene, and is sprayed and absorbed by 1% -5% hydrochloric acid; after three-stage absorption, tail gas contains noncondensable gas and trace hydrogen chloride, the tail gas is finally sprayed and absorbed by fourth-stage water and then is discharged after reaching the standard, when the concentration of the first-stage absorption liquid meets the specified requirement, the first-stage absorption liquid is pumped to the synthesis process, the second-stage absorption liquid is pumped to one side of the first-stage absorption liquid, then new toluene is injected into one side of the second-stage absorption liquid, a toluene absorption tower with two stages of external circulation heat exchangers is adopted to ensure the absorption of cyclopentadiene and 5-norbornene-2-aldehyde, the design uses first-stage sodium hypochlorite to absorb and remove acrolein in the tail gas, the design uses first-stage hydrochloric acid to absorb and remove low-concentration 5-norbornene-2-aldehyde, cyclopentadiene and acrolein in the tail gas after the previous three-stage absorption, and the substances such as hydrochloric acid, acrolein and the like which are dissolved in water can be fully absorbed by the water absorption tower 10 and the water absorption circulating pump 11, when the device is used, the solution enters the filtering and intercepting shell 12 through the liquid inlet pipe 13, then the crystals or impurities and the like can be effectively intercepted and filtered through the filter screen cylinder 19, then the solution is discharged through the liquid discharge pipe 14, the discharged liquid can drive the impeller 23 to rotate, so that the impeller 23 drives the small belt pulley 24 to rotate through the rotating rod 22, and the small belt pulley 24 drives the large belt pulley 25 to rotate through the belt 26 and reduce the speed, big belt pulley 25 passes through blow off pipe 17 and drives rotor plate 15 and rotate, make rotor plate 15 drive a filter screen section of thick bamboo 19 and rotate, make a filter screen section of thick bamboo 19 can cooperate the position of fluid-discharge tube 14 to carry out comprehensive filtration solution, make a filter screen section of thick bamboo 19 and spiral scraping bar 20 produce relative rotation simultaneously, thereby make spiral scraping bar 20 can effectually clear up crystal and impurity etc. that intercept down on a filter screen section of thick bamboo 19 down, avoid it to produce and block up, can effectually discharge the material that intercepts down through blow off pipe 17 and valve 18.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (8)
1. The utility model provides a 5-norbornene-2-aldehyde tail gas absorbing device, sprays absorption system, second grade including absorption liquid storage tank (1), one-level, sprays absorption system, tertiary and sprays absorption system and level four water and spray absorption system, its characterized in that, the one-level sprays absorption system and second grade and sprays absorption system and all set up on absorption liquid storage tank (1), and the tertiary absorption system that sprays is connected with second grade and sprays absorption system, and level four water sprays absorption system and tertiary and sprays absorption system and be connected, and the one-level sprays absorption system, second grade and sprays absorption system, tertiary and spray absorption system and level four water and spray absorption system and all be provided with on the system and filter the interception mechanism.
2. The device for absorbing tail gas of 5-norbornene-2-aldehyde according to claim 1, wherein the primary spray absorption system comprises a primary absorption circulation pump (2), a primary absorption condenser (3) and a primary absorption tower (4), the primary absorption tower (4) is disposed on the top of the absorption liquid storage tank (1), the primary absorption condenser (3) is connected to the primary absorption tower (4), the output end of the primary absorption circulation pump (2) is connected to the primary absorption condenser (3), the input end of the primary absorption circulation pump (2) is connected to a first input pipe, the first input pipe is connected to the absorption liquid storage tank (1), and the filtering and intercepting mechanism is disposed on the first input pipe.
3. The 5-norbornene-2-aldehyde tail gas absorption device according to claim 2, wherein the secondary spray absorption system comprises a secondary absorption circulation pump (5), a secondary absorption condenser (6) and a secondary absorption tower (7), the secondary absorption tower (7) is disposed on the top of the absorption liquid storage tank (1), the secondary absorption condenser (6) is connected to the secondary absorption tower (7), the output end of the secondary absorption circulation pump (5) is connected to the secondary absorption condenser (6), the input end of the secondary absorption circulation pump (5) is connected to a second input pipe, the second input pipe is connected to the absorption liquid storage tank (1), and the filtering and intercepting mechanism is disposed on the second input pipe.
4. The device for absorbing tail gas of 5-norbornene-2-aldehyde according to claim 3, wherein the three-stage spray absorption system comprises a hydrochloric acid absorption tower (8) and a hydrochloric acid absorption tower circulating pump (9), the top of the hydrochloric acid absorption tower (8) is connected to the top of the secondary absorption tower (7), the top of the hydrochloric acid absorption tower (8) is connected to the output end of the hydrochloric acid absorption tower circulating pump (9), the input end of the hydrochloric acid absorption tower circulating pump (9) is connected to a third input pipe, the third input pipe is connected to the bottom of the hydrochloric acid absorption tower (8), and the filtering and intercepting mechanism is disposed on the third input pipe.
5. The 5-norbornene-2-aldehyde tail gas absorption device according to claim 4, wherein the four-stage water spray absorption system comprises a water absorption tower (10) and a water absorption circulating pump (11), the top of the water absorption tower (10) is connected with the top of the hydrochloric acid absorption tower (8), the top of the water absorption tower (10) is connected with the output end of the water absorption circulating pump (11), the input end of the water absorption circulating pump (11) is connected with a fourth input pipe, the fourth input pipe is connected with the bottom of the water absorption tower (10), and the filtering and intercepting mechanism is disposed on the fourth input pipe.
6. The 5-norbornene-2-aldehyde tail gas absorption device according to claim 5, wherein the filtering and intercepting mechanism comprises a filtering and intercepting shell (12), a liquid inlet pipe (13) is connected to the top of the filtering and intercepting shell (12), a liquid discharge pipe (14) is connected to the outer side of the filtering and intercepting shell (12), a rotating port is formed in the bottom of the filtering and intercepting shell (12), a rotating plate (15) is rotatably mounted in the rotating port, a first annular chute is formed in the rotating port, a first slip ring (16) is slidably mounted in the first annular chute, the first slip ring (16) is fixedly sleeved on the outer side of the rotating plate (15), a drain pipe (17) is arranged on the rotating plate (15), and a valve (18) is arranged on the drain pipe (17).
7. The 5-norbornene-2-aldehyde tail gas absorption device according to claim 6, wherein a filter screen cylinder (19) is disposed at the top of the rotating plate (15), a spiral scraping bar (20) is disposed at the top of the filtering and intercepting housing (12), the spiral scraping bar (20) is matched with the filter screen cylinder (19), a second annular sliding groove is disposed on an inner wall of the top of the filtering and intercepting housing (12), a second slip ring (21) is slidably mounted in the second annular sliding groove, and the bottom of the second slip ring (21) is connected with the top of the filter screen cylinder (19).
8. The 5-norbornene-2-aldehyde tail gas absorption device according to claim 7, wherein the liquid discharge pipe (14) is rotatably installed with a rotating rod (22), an impeller (23) is fixedly sleeved outside the rotating rod (22), one end of the rotating rod (22) extends to the outside of the liquid discharge pipe (14) and is fixedly sleeved with a small belt pulley (24), a large belt pulley (25) is fixedly sleeved outside the sewage discharge pipe (17), and the same belt (26) is sleeved outside the large belt pulley (25) and the small belt pulley (24).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221395622.5U CN217698606U (en) | 2022-06-07 | 2022-06-07 | 5-norbornene-2-aldehyde tail gas absorption device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221395622.5U CN217698606U (en) | 2022-06-07 | 2022-06-07 | 5-norbornene-2-aldehyde tail gas absorption device |
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| CN217698606U true CN217698606U (en) | 2022-11-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116059789A (en) * | 2023-01-10 | 2023-05-05 | 南通鸿富达利化工有限公司 | Concentrated hydrochloric acid auxiliary absorption pinacolone production tail gas reproduction equipment |
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2022
- 2022-06-07 CN CN202221395622.5U patent/CN217698606U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116059789A (en) * | 2023-01-10 | 2023-05-05 | 南通鸿富达利化工有限公司 | Concentrated hydrochloric acid auxiliary absorption pinacolone production tail gas reproduction equipment |
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