CN206980725U - A kind of diazo-reaction device for producing phenylhydrazine hydrochloride - Google Patents
A kind of diazo-reaction device for producing phenylhydrazine hydrochloride Download PDFInfo
- Publication number
- CN206980725U CN206980725U CN201720849554.8U CN201720849554U CN206980725U CN 206980725 U CN206980725 U CN 206980725U CN 201720849554 U CN201720849554 U CN 201720849554U CN 206980725 U CN206980725 U CN 206980725U
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- CN
- China
- Prior art keywords
- diazo
- discharge nozzle
- reaction kettle
- kettle body
- batch box
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Abstract
The utility model discloses a kind of diazo-reaction device for producing phenylhydrazine hydrochloride, including diazo reaction kettle body, the diazo reaction kettle body upper end is provided with batch box, the diazo reaction kettle body interior is provided with agitator and cooling titanium dish pipe, the agitator is connected with operation stop alarm device a, the diazo reaction kettle body lower end is provided with remote emergency discharge control system, and the diazo reaction kettle body is connected with exhaust gas processing device and alarm interlock.It the advantage is that：The utility model is connected by the way that natrium nitrosum is added dropwise into magnetic valve, device for absorbing tail gas, agitator with superhigh temperature alarm, is effectively controlled the rate of addition of natrium nitrosum, is controlled reaction temperature, stops reaction when temperature is too high；By increasing cooling coil in diazo-reaction kettle body interior, film-cooled heat is added, improves production efficiency；By the way that diazo reaction kettle is connected with remote control, prevent diazol blast.
Description
Technical field
The utility model belongs to chemical production technical field, and in particular to a kind of diazo-reaction dress for producing phenylhydrazine hydrochloride
Put.
Background technology
Phenylhydrazine hydrochloride is in a kind of important medicine, agricultural chemicals and dyestuff intermediate, mainly for the production of medical pyrazolone,
Antipyrine, aminopyrine, analgin, it is also used in dyestuff, agricultural chemicals and organic synthesis industry.And it can be used for detecting vitamin
B12, CO, Fe, Cu, Ni etc. chemical reagent.Phenylhydrazine hydrochloride production mainly includes aniline diazotising and the step work of benzenediazonium chloride two
Skill.
In diazo-reaction in a kettle, diazol easily decomposes at high temperature, and the generation of diazol can produce greatly
The heat of amount, therefore, the requirement in generating process to heat transfer are at a relatively high.Existing reactor in time can not discharge heat, heat transfer
Area is small, and heat transfer efficiency is low, can influence the service life of reactor, and the impeller of blower on the discharge duct of diazo-reaction device is normal
Gas heat is very high caused by Chang Yin, it is easy to and cause extension set wheel to be exploded because temperature is high, and the not purified place of gas discharged
Reason, can be impacted to environment.
Utility model content
The purpose of this utility model is in view of the shortcomings of the prior art, now provide a kind of production efficiency it is high, it is simple to operate,
Environmental protection, the diazo-reaction device for producing phenylhydrazine hydrochloride of safety.
In order to solve the above technical problems, the technical solution adopted in the utility model is：A kind of diazonium for producing phenylhydrazine hydrochloride
Change reaction unit, its innovative point is：Including diazo reaction kettle body, the diazo reaction kettle body upper end is provided with metering
Bucket, the diazo reaction kettle body interior are provided with agitator and cooling titanium dish pipe, and the agitator is connected with operation and stops report
Alert device a, the diazo reaction kettle body lower end are provided with remote emergency discharge control system, the diazo reaction kettle body connection
There are exhaust gas processing device and alarm interlock.
Further, the exhaust gas processing device is connected by blast pipe with diazo reaction kettle body, on the blast pipe
Exhaust fan is installed, the exhaust fan is connected with operation stop alarm device b.
Further, the alarm interlock is by superhigh temperature alarm, alarm a out of service and alarm out of service
Device b is connected with each other composition.
Further, the batch box includes water batch box, aniline batch box, natrium nitrosum batch box and hydrochloric acid metering
Bucket, the water batch box, aniline batch box, natrium nitrosum batch box and hydrochloric acid batch box lower end are separately installed with discharge nozzle a, gone out
Expects pipe b, discharge nozzle c and discharge nozzle d, the discharge nozzle d connect diazo-reaction kettle body interior, the discharge nozzle a, discharge nozzle
B and discharge nozzle c is connected with diazo reaction kettle body interior by discharge nozzle e, and natrium nitrosum dropwise addition is provided with the discharge nozzle c
Magnetic valve, the natrium nitrosum are added dropwise magnetic valve and are connected with superhigh temperature alarm, and feed pipe, institute are mounted on the batch box
State water batch box, aniline batch box and natrium nitrosum batch box by blow-down pipe with drain to be connected, the hydrochloric acid batch box
On be connected with gas absorption system, be mounted on stop valve on the feed pipe, blow-down pipe and discharge nozzle.
Further, the remote emergency discharge control system includes the remote emergency discharging of diazo reaction kettle body bottom
Control valve, the remote emergency discharging control valve bottom are connected with discharge nozzle f, the discharge nozzle f and pass through discharge nozzle g and discharge nozzle
H is connected with emergency reaction kettle and reduction kettle, is mounted on observing visor and electric solenoid valve on the discharge nozzle g and discharge nozzle h.
Further, cooling device is installed on the diazo reaction kettle body housing, is provided with the cooling device
Inlet valve and outlet valve.
Further, the cooling titanium dish pipe inlet valve and outlet valve are separately positioned on diazo reaction kettle body exterior.
The beneficial effects of the utility model are as follows：
（1）The utility model is alarmed by the way that natrium nitrosum is added dropwise into magnetic valve, device for absorbing tail gas, agitator and superhigh temperature
Device is connected, and forms interlock, is effectively controlled the rate of addition of natrium nitrosum, controls reaction temperature, when temperature is too high
When stop reaction；
（2）The utility model is connected by the way that natrium nitrosum is added dropwise into magnetic valve with operation stop alarm device, when agitator stops
When rotation stop is moved or exhaust fan is out of service, natrium nitrosum dropwise addition magnetic valve, which can be realized, to be automatically cut off；
（3）The utility model in diazo-reaction kettle body interior by increasing cooling coil, and diazo reaction kettle body
The cooling device of outside realizes together to be cooled down twice, is added film-cooled heat, is improved production efficiency；
（4）The utility model is by the way that diazo reaction kettle is connected with remote control, and under diazo reaction kettle body
If remote emergency discharging control valve, when diazonium temperature in the kettle exceedes setting range, and temperature is in runaway condition, in operating room
Interior personnel can remote control meet an urgent need discharge valve, material in kettle is put into emergent kettle, prevent diazol blast；
（5）The utility model is purified to the gas of discharge, reduced by installing exhaust gas processing device after blower fan
The discharge of pollutant；
（6）The hydrochloric acid of volatilization is collected and carried out by connecting gas absorption system on hydrochloric acid batch box by the utility model
Processing, reduces the waste of material.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is overall structure diagram of the present utility model.
Embodiment
Embodiment of the present utility model is illustrated by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages and effect of the present utility model easily.
As shown in figure 1, a kind of diazo-reaction device for producing phenylhydrazine hydrochloride, including diazo reaction kettle body 1, diazonium is anti-
Answer kettle body upper end that batch box 3 is installed, agitator 7 and cooling titanium dish pipe 2, stirring are installed inside diazo reaction kettle body 1
Device 7 is connected with operation stop alarm device a51, and the lower end of diazo reaction kettle body 1 is provided with remote emergency discharge control system 8, weight
Nitrogen reactor body 1 is connected with exhaust gas processing device 4 and alarm interlock 5.
Exhaust gas processing device 4 is connected by blast pipe 41 with diazo reaction kettle body 1, and tail gas wind is provided with blast pipe 41
Machine 42, exhaust fan 42 are connected with operation stop alarm device b52.
Batch box 3 includes water batch box 31, aniline batch box 32, natrium nitrosum batch box 33 and hydrochloric acid batch box 34, water
Batch box 31, aniline batch box 32, natrium nitrosum batch box 33 and the lower end of hydrochloric acid batch box 34 be separately installed with discharge nozzle a61,
Discharge nozzle b62, discharge nozzle c63 and discharge nozzle d65, natrium nitrosum is installed on discharge nozzle c63 magnetic valve 14, natrium nitrosum is added dropwise
Magnetic valve 14 is added dropwise with superhigh temperature alarm 53 to be connected, feed pipe 13, water batch box 31, aniline meter are mounted on batch box 3
Measuring tank 32 and natrium nitrosum batch box 33 are connected by blow-down pipe 111 with drain 11, discharge nozzle d65 connection diazo-reaction kettles
Inside body 1, discharge nozzle a61, discharge nozzle b62 and discharge nozzle c63 pass through discharge nozzle e65 and the phase of diazo reaction kettle body interior 1
Even, gas absorption system 12 is installed on hydrochloric acid batch box 34, is mounted on cutting on feed pipe 13, blow-down pipe 111 and discharge nozzle 6
Only valve 10.
Remote emergency discharge control system 8 includes the remote emergency discharging control valve 81 of the bottom of diazo reaction kettle body 1, control
Valve bottom 81 processed is connected with discharge nozzle f82, and discharge nozzle f82 is by discharge nozzle g84 and discharge nozzle h83 and emergency reaction kettle 86 and also
Former kettle 87 is connected, and is mounted on observing visor 85 on discharge nozzle g84 and discharge nozzle h83 and electric solenoid valve 88, diazonium kettle are divided into
Remote emergency discharging control valve 81, when temperature exceedes setting range in diazonium kettle body 1, when temperature is in runaway condition, it is in
Personnel in operating room can remote control meet an urgent need discharge valve 81, material in kettle is put into emergent kettle 86, prevents diazol
Blast
Cooling device 9 is installed on the shell of diazo reaction kettle body 1, inlet valve 91 and outlet valve are installed on cooling device
92。
The inlet valve 21 and outlet valve 22 of cooling titanium dish pipe 2 are separately positioned on outside diazo reaction kettle body 1, diazonium kettle
This, cooling titanium dish pipe 2 in 1 increase kettle, cooling titanium dish pipe 2 is resistant material, increases film-cooled heat, improving production efficiency, phase
During than not increasing inner disc 2, improving productivity 50%.
The utility model by natrium nitrosum by being added dropwise magnetic valve 14 and exhaust fan 42, reactor agitator 7, overtemperature report
Alert device 53 is chain to be connected, i.e., causes temperature in diazo reaction kettle body 1 to exceed design temperature when natrium nitrosum rate of addition is too fast
When, the magnetic valve 14 that control natrium nitrosum is added dropwise is automatically cut off, and when temperature is dropped to below setting value again, magnetic valve 14 is automatic again
Opening continues that natrium nitrosum is added dropwise.When agitator 7 stops operating or exhaust fan 42 is out of service, electromagnetism is added dropwise in natrium nitrosum
Valve 14 can also be realized and automatically cut off.
Above-described embodiment is preferred embodiment of the present utility model, is not the limit to technical solutions of the utility model
System, as long as the technical scheme that can be realized without creative work on the basis of above-described embodiment, is regarded as falling into
In the rights protection scope of the utility model patent.
Claims (7)
- A kind of 1. diazo-reaction device for producing phenylhydrazine hydrochloride, it is characterised in that：Including diazo reaction kettle body, the diazonium Reactor body upper end is provided with batch box, and the diazo reaction kettle body interior is provided with agitator and cooling titanium dish pipe, institute State agitator and be connected with operation stop alarm device a, the diazo reaction kettle body lower end is provided with remote emergency discharging control system System, the diazo reaction kettle body are connected with exhaust gas processing device and alarm interlock.
- A kind of 2. diazo-reaction device for producing phenylhydrazine hydrochloride according to claim 1, it is characterised in that：The tail gas Processing unit is connected by blast pipe with diazo reaction kettle body, and exhaust fan, the tail gas wind are provided with the blast pipe Machine is connected with operation stop alarm device b.
- A kind of 3. diazo-reaction device for producing phenylhydrazine hydrochloride according to claim 1, it is characterised in that：The alarm Interlock is connected with each other composition by superhigh temperature alarm, alarm a out of service and alarm b out of service.
- A kind of 4. diazo-reaction device for producing phenylhydrazine hydrochloride according to claim 1, it is characterised in that：The metering Bucket includes water batch box, aniline batch box, natrium nitrosum batch box and hydrochloric acid batch box, the water batch box, aniline batch box, Natrium nitrosum batch box and hydrochloric acid batch box lower end are separately installed with discharge nozzle a, discharge nozzle b, discharge nozzle c and discharge nozzle d, described Discharge nozzle d connects diazo-reaction kettle body interior, the discharge nozzle a, discharge nozzle b and discharge nozzle c and diazo reaction kettle body Inside is connected by discharge nozzle e, natrium nitrosum is provided with the discharge nozzle c magnetic valve is added dropwise, electricity is added dropwise in the natrium nitrosum Magnet valve is connected with superhigh temperature alarm, and feed pipe, the water batch box, aniline batch box and Asia are mounted on the batch box Sodium nitrate batch box is connected by blow-down pipe with drain, and gas absorption system is connected with the hydrochloric acid batch box, described Stop valve is mounted on feed pipe, blow-down pipe and discharge nozzle.
- A kind of 5. diazo-reaction device for producing phenylhydrazine hydrochloride according to claim 1, it is characterised in that：It is described long-range Emergent discharge control system includes the remote emergency discharging control valve of diazo reaction kettle body bottom, the remote emergency discharging control Valve bottom processed is connected with discharge nozzle f, the discharge nozzle f and passes through discharge nozzle g and discharge nozzle h and emergency reaction kettle and reduction kettle phase Even, it is mounted on observing visor and electric solenoid valve on the discharge nozzle g and discharge nozzle h.
- A kind of 6. diazo-reaction device for producing phenylhydrazine hydrochloride according to claim 1, it is characterised in that：The diazonium Cooling device is installed on reactor body housing, inlet valve and outlet valve are installed on the cooling device.
- A kind of 7. diazo-reaction device for producing phenylhydrazine hydrochloride according to claim 1, it is characterised in that：The cooling The inlet valve and outlet valve of titanium dish pipe are separately positioned on diazo reaction kettle body exterior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720849554.8U CN206980725U (en) | 2017-07-13 | 2017-07-13 | A kind of diazo-reaction device for producing phenylhydrazine hydrochloride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720849554.8U CN206980725U (en) | 2017-07-13 | 2017-07-13 | A kind of diazo-reaction device for producing phenylhydrazine hydrochloride |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206980725U true CN206980725U (en) | 2018-02-09 |
Family
ID=61403980
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720849554.8U Expired - Fee Related CN206980725U (en) | 2017-07-13 | 2017-07-13 | A kind of diazo-reaction device for producing phenylhydrazine hydrochloride |
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|---|---|
| CN (1) | CN206980725U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112354495A (en) * | 2020-11-10 | 2021-02-12 | 上海惠和化德生物科技有限公司 | Continuous flow reaction system and method for p-chlorophenylhydrazine hydrochloride |
-
2017
- 2017-07-13 CN CN201720849554.8U patent/CN206980725U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112354495A (en) * | 2020-11-10 | 2021-02-12 | 上海惠和化德生物科技有限公司 | Continuous flow reaction system and method for p-chlorophenylhydrazine hydrochloride |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 226000 Qidong Binjiang fine chemical industry park, Nantong City, Jiangsu Province Patentee after: Qidong Asia Pacific Pharmaceutical Co., Ltd Address before: 226200 Suzhou Road, Qidong Binjiang fine chemical park, Nantong City, Jiangsu Province, No. 58 Patentee before: QIDONG A&P CHEMICAL FACTORY CO., LTD. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180209 Termination date: 20210713 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |