CN206027694U - Lime nitrogen is hydrolysised and is cooled off reation kettle - Google Patents
Lime nitrogen is hydrolysised and is cooled off reation kettle Download PDFInfo
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- CN206027694U CN206027694U CN201620933925.6U CN201620933925U CN206027694U CN 206027694 U CN206027694 U CN 206027694U CN 201620933925 U CN201620933925 U CN 201620933925U CN 206027694 U CN206027694 U CN 206027694U
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Abstract
The utility model provides a lime nitrogen is hydrolysised and is cooled off reation kettle, reaction external side of barrel and bottom outside parcel have cooling jacket, annular cooling coil has been coiled in the retort, retort axis department is equipped with vertical agitator, the agitator lower extreme rotates fixedly with reaction bottom tank cover, the agitator top is passed through the reduction gear and is connected with the motor, the double -side cooling refluence bucket coaxial with the agitator be equipped with outside the agitator, the bucket wall of double -side cooling refluence bucket is equipped with cooling jacket, going up of double -side cooling refluence bucket is followed along being less than going up of cooling coil, retort cooling jacket, cooling coil, double -side cooling refluence bucket cooling jacket's cooling water is an enterprising lower formula, the feed inlet is established on reaction tank top cover, the air inlet is established on reaction bottom tank cover, the discharging pipe sets up in the retort bottom. The utility model discloses because total heat transfer area is big, this reation kettle cooling efficiency is high to solution formation circulation inside and outside double -side cooling refluence staving designs with three cooled heat transfer of make full use of in making the cauldron through the agitator.
Description
Technical field：
This utility model is related to reactor technical field, more particularly to a kind of lime nitrogen hydrolysis cooling reactor.
Background technology：
Cyanamid dimerization (abbreviation DICY or DCD) molecular formula is (NH2CN)2, also known as dicyandiamide, dicyan diamino, it is a kind of white
Prismatic crystalline powder.Dicyandiamide is a kind of important fine chemical material, can be used for medicine, dyestuff, coating, pesticide, electronics,
Glass fibre, lubricant and fire retardant etc..Commercial production dicyandiamide is that (molecular formula is CaCN by lime nitrogen2) hydrolysis, decalcification
Reaction and filtration obtain cyanamide, and (molecular formula is NH2CN) liquid, then carries out cyanamide polymerization, crystallizes, filters, being dried to obtain
Dicyandiamide product.Its reaction equation is as follows：
2CaCN2+2H2O→Ca(HCN2)2+Ca(OH)2
Ca(HCN2)2+CO2+H2O→2NH2CN+CaCO3
2NH2CN→(NH2CN)2
Lime nitrogen hydrolysis decalcification reaction can release substantial amounts of heat, and as cyanamide is unstable, which contains cyano group and amino, all
It is active group, addition, replacements, the reaction such as condensation easily occurs, therefore lime nitrogen hydrolyzes decalcification and reacts that actually generate is single cyanogen
The mixed liquor of amine and dicyandiamide.As temperature increases, the production rate more and more higher of dicyandiamide in mixed liquor, but due to now mixing
Contain waste residue in liquid, therefore the dicyandiamide of this step production is difficult to purify, and can only exclude with waste residue.Therefore in order to improve single cyanogen
The content of amine, reduces cost must just control the generation that lime nitrogen hydrolysis decalcification reaction reduces dicyandiamide in this step as far as possible
Rate.
Cyanamide polymerization generates dicyandiamide needs alkaline environment and higher temperature, therefore needs to control reaction system simultaneously
PH and temperature, one spot cyanamide hydrolytic reaction pot mostly are single cold or double cooling reactors, and its cooling effect is not good, it is impossible to meet single
Cyanamide production needs.
The content of the invention：
In consideration of it, being necessary to design a kind of lime nitrogen hydrolysis cooling reactor.
A kind of lime nitrogen hydrolysis cooling reactor, including：Retort, cooling coil, two-sided cooling flow backwards bucket, agitator,
Motor, decelerator；Wherein, cooling jacket is enclosed with the outside of retort staving and on the outside of bottom, and retort inner disc is wound with ring-type
Cooling coil, be provided with vertical agitator at retort axis, agitator lower end is rotated with retort bottom and is fixed, agitator
Top be connected with motor by decelerator, motor, decelerator be arranged on react top ends of cans on, outside agitator equipped with
Bucket is flow backwards in the coaxial two-sided cooling of agitator, and two-sided cooling is flow backwards the bucket wall of bucket and is provided with cooling jacket, and bucket is flow backwards in two-sided cooling
Upper edge of the upper edge less than cooling coil, retort cooling jacket, cooling coil, the cooling water of two-sided cooling refluence bucket cooling jacket
Upper intake lower outlet type is, charging aperture is located on reaction top ends of cans, and air inlet is located on retort bottom, and discharge nozzle is arranged on reaction
Pot bottom.
Preferably, the top of retort cooling jacket is located at the top of retort staving and locates, the bottom of retort cooling jacket
On retort bottom；Two-sided cooling is flow backwards the lower end of bucket and is located at retort staving base plane.
Preferably, agitator carries three-level stirring vane.
Preferably, retort staving top is fixed with the hanger installed.
Reactor of the present utility model is three cooled sealed reactors, and the heat exchange area of cooling coil is reactor cooling
More than the 2/3 of chuck, it is less that bucket volume is flow backwards in two-sided cooling, but due in its chuck outside can all be cooled down, therefore its heat exchange
Area can be the 2/3 of reactor cooling jacket, and as total heat exchange area is big, this reactor cooling effectiveness is high, and by stirring
Device makes solution in kettle form circulation to make full use of the heat exchange design of three cooleds inside and outside two-sided cooling refluence staving.
Description of the drawings：
Accompanying drawing 1 is the structural representation of the lime nitrogen hydrolysis cooling reactor of a width better embodiment.
Accompanying drawing 2 is the close-up schematic view in accompanying drawing 1A portions.
In figure：Bucket 3, agitator 4, motor 5, decelerator 6, cooling folder are flow backwards in retort 1, cooling coil 2, two-sided cooling
Set 11, bottom 14, top cover 12, staving 13, cooling coil water inlet 21, two-sided cooling flow backwards bucket water inlet 31, outlet 22, anti-
Answer tank cooling jacket water inlet 111, retort cooling jacket outlet 112, charging aperture 15, air inlet 16, stirring vane 41, go out
Expects pipe 17, hanger 18.
Specific embodiment：
As shown in Fig. 1～2, a kind of lime nitrogen hydrolysis cooling reactor, including：Retort 1, cooling coil 2, two-sided cooling
Flow backwards bucket 3, agitator 4, motor 5, decelerator 6；Wherein, cooling is enclosed with the outside of 1 staving 13 of retort and on the outside of bottom 14
Chuck 11,1 inner disc of retort are wound with the cooling coil 2 of ring-type, are provided with vertical agitator 4, agitator 4 at 1 axis of retort
Lower end is rotated with 1 bottom of retort 14 and is fixed, and is connected with motor 5 by decelerator 6 at the top of agitator 4, motor 5, deceleration
Device 6 is arranged on 1 top cover 12 of retort, outer equipped with the two-sided cooling refluence bucket 3 coaxial with agitator 4 in agitator 4, two-sided
Cooling is flow backwards the bucket wall of bucket 3 and is provided with cooling jacket, and the upper edge of the upper edge less than cooling coil 2 of bucket 3, retort are flow backwards in two-sided cooling
1 cooling jacket 11, cooling coil 2, the cooling water of two-sided cooling refluence 3 cooling jacket of bucket are upper intake lower outlet type, cooling coil
Water inlet 21, two-sided cooling are flow backwards bucket water inlet 31 and are arranged on 1 top cover 12 of retort, and cooling coil 2, two-sided cooling are flow backwards
Bucket 3 shares an outlet 22 and is arranged at 1 staving of retort, 13 bottom, retort cooling jacket water inlet 111 and retort
Cooling jacket outlet 112 is separately positioned on the top and bottom of 1 cooling jacket 11 of retort, and charging aperture 15 is located at retort 1
On top cover 12, air inlet 16 is located on 1 bottom 14 of retort, and discharge nozzle 17 is arranged on 1 bottom of retort.
In the present embodiment, the top of 1 cooling jacket 11 of retort is located at the top of 1 staving 13 of retort and locates, retort 1
The bottom of cooling jacket 11 is located on 1 bottom 14 of retort；Two-sided cooling is flow backwards the lower end of bucket 3 and is located at 1 staving of retort, 13 bottom
At facial planes.
In the present embodiment, agitator 4 carries three-level stirring vane 41.
In the present embodiment, 1 staving of retort, 13 top is fixed with the hanger 18 installed.
Claims (4)
1. a kind of lime nitrogen hydrolysis cools down reactor, it is characterised in that：Including：Retort, cooling coil, two-sided cooling are flow backwards
Bucket, agitator, motor, decelerator；Wherein, cooling jacket is enclosed with the outside of retort staving and on the outside of bottom, in retort
Coiling has the cooling coil of ring-type, is provided with vertical agitator at retort axis, and agitator lower end is rotated with retort bottom
Fixed, whip topping is connected with motor by decelerator, and motor, decelerator are arranged on reaction top ends of cans, are being stirred
Mixing and bucket is flow backwards equipped with the two-sided cooling coaxial with agitator outside device, two-sided cooling is flow backwards the bucket wall of bucket and is provided with cooling jacket, two-sided
The upper edge of the upper edge less than cooling coil of bucket is flow backwards in cooling, and bucket cooling is flow backwards in retort cooling jacket, cooling coil, two-sided cooling
The cooling water of chuck is upper intake lower outlet type, and charging aperture is located on reaction top ends of cans, and air inlet is located on retort bottom, discharging
Pipe is arranged on reaction pot bottom.
2. lime nitrogen hydrolysis as claimed in claim 1 cools down reactor, it is characterised in that：The top position of retort cooling jacket
Locate at the top of retort staving, the bottom of retort cooling jacket is located on retort bottom；The lower end of bucket is flow backwards in two-sided cooling
At retort staving base plane.
3. the lime nitrogen hydrolysis as described in claim 1 or claim 2 cools down reactor, it is characterised in that：Agitator is carried
Three-level stirring vane.
4. the lime nitrogen hydrolysis as described in claim 1 or claim 2 cools down reactor, it is characterised in that：Retort staving
Top is fixed with the hanger installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620933925.6U CN206027694U (en) | 2016-08-24 | 2016-08-24 | Lime nitrogen is hydrolysised and is cooled off reation kettle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620933925.6U CN206027694U (en) | 2016-08-24 | 2016-08-24 | Lime nitrogen is hydrolysised and is cooled off reation kettle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206027694U true CN206027694U (en) | 2017-03-22 |
Family
ID=58305258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620933925.6U Expired - Fee Related CN206027694U (en) | 2016-08-24 | 2016-08-24 | Lime nitrogen is hydrolysised and is cooled off reation kettle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206027694U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111233005A (en) * | 2020-02-13 | 2020-06-05 | 宁夏嘉峰化工有限公司 | Cyanamide freeze concentration method |
| US11141705B1 (en) | 2021-03-22 | 2021-10-12 | King Abdulaziz University | Fenton apparatus for safety of industrial exothermic reactions |
-
2016
- 2016-08-24 CN CN201620933925.6U patent/CN206027694U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111233005A (en) * | 2020-02-13 | 2020-06-05 | 宁夏嘉峰化工有限公司 | Cyanamide freeze concentration method |
| US11141705B1 (en) | 2021-03-22 | 2021-10-12 | King Abdulaziz University | Fenton apparatus for safety of industrial exothermic reactions |
| US11338261B1 (en) | 2021-03-22 | 2022-05-24 | King Abdulaziz University | Fenton reactor with gaseous agitation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170322 Termination date: 20200824 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |