CN201713455U - Safe and continuous nitrobenzene production system - Google Patents
Safe and continuous nitrobenzene production system Download PDFInfo
- Publication number
- CN201713455U CN201713455U CN2010202247951U CN201020224795U CN201713455U CN 201713455 U CN201713455 U CN 201713455U CN 2010202247951 U CN2010202247951 U CN 2010202247951U CN 201020224795 U CN201020224795 U CN 201020224795U CN 201713455 U CN201713455 U CN 201713455U
- Authority
- CN
- China
- Prior art keywords
- spent acid
- waste acid
- pot
- tank
- mixing tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model belongs to the field of chemical equipment and discloses a safe and continuous nitrobenzene production system. The system comprises a waste acid head tank, a mixer 1#, a mixer 2#, nitrating pots 1# to 4#, a continuous separator, a waste acid buffer tank, a waste acid pump, a waste acid cooler and an extraction pot. The safe and continuous production system is added with the waste acid head tank on the basis of the prior art, pumps the waste acid into the waste acid head tank on high, realizes the production continuity and automation as the automatic feeding of the waste acid depends on the difference of height, and more importantly, avoids not only the unsafe factors of artificial acid adding, but also the cutoff of the waste acid caused by negligence of operators. Simultaneously, an overflow pipe can lead excessive waste acid into the extraction pot for the concentration process of the next step, therefore, the safe accident caused by overflow of the waste acid is avoided and the excessive waste acid is reasonably utilized.
Description
Technical field
The utility model belongs to the chemical industry equipment field, relates to a kind of oil of mirbane system that keeps the safety in production continuously.
Background technology
The production of oil of mirbane is mainly made by benzene and nitric acid and the reaction of vitriolic mixing acid.Because nitration reaction is very violent reaction, security incident has all appearred in therefore a lot of in process of production producers.Because the nitration reaction process is very violent, our very important person reduces nitration reaction speed for to drop into spent acid in the nitration reaction still, but spent acid is sometimes because operative employee's misoperation causes the spent acid cutout, makes the rising of nitration reaction temperature and has an accident.
Summary of the invention
The purpose of this utility model is the above-mentioned defective at prior art, and a kind of oil of mirbane system that keeps the safety in production continuously is provided.
The technical solution of the utility model is:
A kind of oil of mirbane system that keeps the safety in production continuously, this system comprises spent acid header tank, 1
#Mixing tank, 2
#Mixing tank, 1
#Nitrated pot, 2
#Nitrated pot, 3
#Nitrated pot, 4
#Nitrated pot, continuous separator, spent acid surge tank, spent acid pump, spent acid water cooler and extraction pot; Wherein spent acid header tank bottom is respectively with 1
#Mixing tank and 2
#Mixing tank links to each other, and 1
#Mixing tank is provided with the pipeline of input nitric acid, 2
#Mixing tank is provided with the pipeline that feeds benzene, 1
#Mixing tank and 2
#The mixing tank bottom is respectively with 1
#Nitrated pot links to each other, series connection successively between 4 nitrated pots, 4
#The discharge port of nitrated pot links to each other with the opening for feed of continuous separator, the oil of mirbane outlet of continuous separator is led to the neutralization pot by pipeline, the spent acid outlet of continuous separator links to each other with the opening for feed of spent acid surge tank, link to each other by the spent acid pump between the opening for feed of spent acid surge tank discharge port and spent acid water cooler, be communicated with between the spent acid inlet of the discharge port of spent acid water cooler and spent acid header tank, spent acid header tank top is provided with upflow tube, this upflow tube the other end leads to the extraction pot, and above-mentioned all connections are pipe connection.
The beneficial effects of the utility model:
The utility model has been set up the spent acid header tank on the basis of existing technology, by spent acid being pumped into spent acid header tank as for eminence, spent acid is by the difference of altitude automatic charging, serialization, the automatization of producing have been realized, the more important thing is the unsafe factor of both having avoided artificial throwing acid, also avoided the spent acid cutout problem that causes owing to operative employee's carelessness simultaneously.The bootable unnecessary spent acid of upflow tube enters the extraction pot simultaneously, and then enters next step enrichment process, has both avoided the spent acid overflow to cause security incident, has rationally utilized unnecessary spent acid again.
Description of drawings
Fig. 1 the utility model embodiment 1 oil of mirbane system diagram of keeping the safety in production continuously.
1 is the spent acid header tank, and 2-1 is 1
#Mixing tank, 2-2 are 2
#Mixing tank, 3 is 1
#Nitrated pot, 4 is 2
#Nitrated pot, 5 is 3
#Nitrated pot, 6 is 4
#Nitrated pot, 7 is continuous separator, and 8 is the spent acid surge tank, and 9 is the spent acid pump, and 10 is the spent acid water cooler, and 11 are the extraction pot, and 12 is upflow tube.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Embodiment 1
A kind of oil of mirbane system that keeps the safety in production continuously is characterized in that this system comprises spent acid header tank 1,1
#Mixing tank 2-1,2
#Mixing tank 2-2,1
#Nitrated pot 3,2
#Nitrated pot 4,3
#Nitrated pot 5,4
#Nitrated pot 6, continuous separator 7, spent acid surge tank 8, spent acid pump 9, spent acid water cooler 10 and extraction pot 11.There is pipeline spent acid header tank bottom respectively with 1
#Mixing tank 2-1 and 2
#Mixing tank 2-2 is connected, and is used to import spent acid; 1
#Mixing tank 2-1 also is provided with the pipeline of input nitric acid, 2
#Mixing tank 2-2 also is provided with the pipeline that feeds benzene, 1
#Mixing tank 2-1 and 2
#Pipeline and 1 are arranged respectively at mixing tank 2-2 bottom
#Nitrated pot 3 communicates; There is pipeline to connect successively between 4 nitrated pots, can makes nitration reaction more thorough; 4
#The discharge port of nitrated pot 6 and continuous separator 7 are connected by pipeline, and material is separated into acid oil of mirbane and spent acid automatically in continuous separator 7; Acid oil of mirbane leads to the neutralization pot by the oil of mirbane outlet of continuous separator 7 by pipeline and carries out next step purifying; The spent acid outlet of continuous separator 7 links to each other by the opening for feed of pipeline with spent acid surge tank 8, link to each other by spent acid pump 9 between the opening for feed of the discharge port of spent acid surge tank 8 and spent acid water cooler 10, be communicated with by pipeline between the spent acid inlet of the discharge port of spent acid water cooler 10 and spent acid header tank 1, spent acid enters spent acid surge tank 8 through this path by the outlet of the spent acid of continuous separator 7, pump into spent acid water cooler 10 through spent acid pump 9, finally entering spent acid header tank 1; Spent acid header tank top is provided with upflow tube 12, these upflow tube 12 the other ends lead to extraction pot 11, spent acid in the spent acid header tank arrives certain liquid level, flows into extractor 11 by upflow tube 12 automatically, and the spent acid in the extractor 11 enters next enrichment process after extraction.Above-mentioned all mode of connection are pipe connection.
Embodiment recited above is described preferred implementation of the present utility model; be not that design of the present utility model and scope are limited; do not breaking away under the utility model design concept prerequisite; common engineering technical personnel make the technical solution of the utility model in this area various modification and improvement; all should fall into protection domain of the present utility model, the technology contents that the utility model is asked for protection all is documented in claims.
Claims (1)
1. oil of mirbane system that keeps the safety in production continuously is characterized in that this system comprises spent acid header tank (1), 1
#Mixing tank (2-1), 2
#Mixing tank (2-2), 1
#Nitrated pot (3), 2
#Nitrated pot (4), 3
#Nitrated pot (5), 4
#Nitrated pot (6), continuous separator (7), spent acid surge tank (8), spent acid pump (9), spent acid water cooler (10) and extraction pot (11); Wherein spent acid header tank (1) bottom is respectively with 1
#Mixing tank (2-1) and 2
#Mixing tank (2-2) links to each other, and 1
#Mixing tank (2-1) is provided with the pipeline of input nitric acid, 2
#Mixing tank (2-2) is provided with the pipeline that feeds benzene, 1
#Mixing tank (2-1) and 2
#Mixing tank (2-2) bottom is respectively with 1
#Nitrated pot (3) links to each other, series connection successively between 4 nitrated pots, 4
#The discharge port of nitrated pot (6) links to each other with the opening for feed of continuous separator (7), the oil of mirbane outlet of continuous separator (7) is led to the neutralization pot by pipeline, the spent acid outlet of continuous separator (7) links to each other with the opening for feed of spent acid surge tank (8), link to each other by spent acid pump (9) between the discharge port of spent acid surge tank (8) and the opening for feed of spent acid water cooler (10), be communicated with between the spent acid inlet of the discharge port of spent acid water cooler (10) and spent acid header tank (1), spent acid header tank (1) top is provided with upflow tube (12), this upflow tube (12) the other end leads to extraction pot (11), and above-mentioned all connections are pipe connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202247951U CN201713455U (en) | 2010-06-13 | 2010-06-13 | Safe and continuous nitrobenzene production system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202247951U CN201713455U (en) | 2010-06-13 | 2010-06-13 | Safe and continuous nitrobenzene production system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201713455U true CN201713455U (en) | 2011-01-19 |
Family
ID=43459455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202247951U Expired - Lifetime CN201713455U (en) | 2010-06-13 | 2010-06-13 | Safe and continuous nitrobenzene production system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201713455U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102276474A (en) * | 2010-06-13 | 2011-12-14 | 江苏大明科技有限公司 | Nitrobenzene continuous and safe production system |
-
2010
- 2010-06-13 CN CN2010202247951U patent/CN201713455U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102276474A (en) * | 2010-06-13 | 2011-12-14 | 江苏大明科技有限公司 | Nitrobenzene continuous and safe production system |
| CN102276474B (en) * | 2010-06-13 | 2013-07-17 | 江苏大明科技有限公司 | Nitrobenzene continuous and safe production system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110119 Effective date of abandoning: 20130717 |
|
| RGAV | Abandon patent right to avoid regrant |