CN108261798A - A kind of melamine crystallization apparatus of energy-saving high yield - Google Patents
A kind of melamine crystallization apparatus of energy-saving high yield Download PDFInfo
- Publication number
- CN108261798A CN108261798A CN201810079169.9A CN201810079169A CN108261798A CN 108261798 A CN108261798 A CN 108261798A CN 201810079169 A CN201810079169 A CN 201810079169A CN 108261798 A CN108261798 A CN 108261798A
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- Prior art keywords
- crystallizer
- crystallization apparatus
- melamine
- energy
- high yield
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D7/00—Sublimation
- B01D7/02—Crystallisation directly from the vapour phase
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/18—Cleaning-out devices
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D251/00—Heterocyclic compounds containing 1,3,5-triazine rings
- C07D251/02—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
- C07D251/12—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
- C07D251/26—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with only hetero atoms directly attached to ring carbon atoms
- C07D251/40—Nitrogen atoms
- C07D251/54—Three nitrogen atoms
- C07D251/62—Purification of melamine
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention discloses a kind of melamine crystallization apparatus of energy-saving high yield, it includes crystallizer, cyclone separator, purges crystallization apparatus, and the crystallizer upper end is equipped with air inlet, bottom sets crystallizer outlet conduit, the cyclone separator has two, is separately positioned on crystallizer lower end both sides, is connected by crystallizer outlet conduit with crystallizer, the blowing pipeline device includes purging endless tube, solenoid valve, nitrogen inlet duct, and purging endless tube is mounted on the inner wall of crystallizer outlet conduit；The present invention can be effectively prevented from the accumulation of melamine powder, and the live load of mitigation effectively extends the production cycle.
Description
Technical field
The present invention relates to Melamine Production apparatus field, the melamine crystallization dress of more particularly to a kind of energy-saving high yield
It puts.
Background technology
Ammonia is important one of inorganic chemical product, and ammonia synthesizing industry occupies an important position in national economy, except liquid
Ammonia can be directly as fertilizer outside, the nitrogenous fertilizer and various nitrogenous composite fertilizers that agriculturally use are the synthesis using ammonia as raw material
Ammonia is one of large chemical products, plays the part of very important role in the industrial production, improves and safeguard that the production of synthesis ammonia is set
It is standby also to have far-reaching significance, one of chemical products of ammonia melamine is synthesized in process of production, due to being entrained in mixing
In gas, need to carry out it crystallization precipitation collection.
In modern technique productions, the technique mixed gas of melamine powder exports the process separated from crystallizer
In, but melamine powder is easily attached on pipe wall, slowly thickeies the technique of melamine powder is hindered to mix at any time
Gas pipeline is closed, crystallization temperature is caused to increase, is stirred at the top of the melamine powder depositing crystalline device of part so as to increase crystallizer
The load mixed increases energy consumption, reduces yield, influences the collection of melamine.
Invention content
In view of the above-mentioned problems, having carried out Improvement, the purpose of the present invention is to provide a kind of melamines of energy-saving high yield
Amine crystallization apparatus.
The technical solution adopted in the present invention is as follows：
A kind of melamine crystallization apparatus of energy-saving high yield, it includes crystallizer, and cyclone separator purges crystallization apparatus,
The crystallizer top is equipped with air inlet, and bottom outside is equipped with crystallizer outlet conduit, and the crystallizer bottom end is equipped with crystallizer
Agitating device；The cyclone separator has two, is separately positioned on crystallizer lower end both sides, passes through crystallizer outlet conduit and knot
Brilliant device is connected, and the cyclone separator bottom end is provided with separator agitating device；Pipe is provided in the crystallizer outlet conduit
Road blow device.
It is further improved as said program：Mixed gas containing melamine enters crystallization by the air inlet
Device.
It is further improved as said program：The crystallizer agitating device includes crystallizer paddle and crystallizer stirs
Motor；The crystallizer paddle is arranged on crystallizer bottom inner portion；The crystallizer stirring motor is mounted on crystallizer bottom end
It is external.
It is further improved as said program：The crystallizer outlet conduit is the straight tube of inner wall smooth.
It is further improved as said program：The separator agitating device includes separator paddle and separator stirs
Motor；The separator paddle is arranged on cyclone separator bottom inner portion；The separator stirring motor is mounted on whirlwind point
Outside device bottom end.
It is further improved as said program：The blowing pipeline device includes purging endless tube, solenoid valve, nitrogen air inlet
Pipe；The partial outer face that wherein described blowing pipeline device is arranged in crystallizer outlet conduit is smooth.
It is further improved as said program：The purging endless tube is mounted on the inner wall of crystallizer outlet conduit；It is described
The hollow ring pipe that endless tube is smooth outer surface is purged, purge hole is provided on the purging endless tube.
It is further improved as said program：The nitrogen inlet duct connects solenoid valve；Solenoid valve other end connection purging
Endless tube.
It is further improved as said program：Before melamine crystallization apparatus operation, first start solenoid valve, allow nitrogen
It is blown out from blowing pipeline device, restarts melamine crystallization apparatus.
It is further improved as said program：The melamine crystallization apparatus after hours, first stops melamine
Crystallization apparatus works, and blowing pipeline device worked on after a period of time, turned off solenoid valve.
Compared with the technology of the existing same industry, usefulness of the present invention is：The configuration of the present invention is simple is easily installed behaviour
Make, inputting nitrogen by the endless tube installed to crystallizer outlet conduit blows the melamine powder being attached on tube wall
It dissipates, melamine powder can be effectively prevented and adhered on the tube wall of crystallizer outlet conduit, avoid melamine
The raising of powder accumulation temperature is caused at the top of the melamine powder depositing crystalline device of part, and the work for significantly reducing crystallizer is born
Lotus effectively extends the production cycle, improves production efficiency.
Attached drawing is used for providing further understanding technical solution of the present invention, and a part for constitution instruction, with this
The embodiment of application technical solution for explaining the present invention together, does not form the limitation to technical solution of the present invention.
Description of the drawings
Fig. 1 is the structure diagram of the melamine crystallization apparatus of energy-saving high yield provided by the invention；
Fig. 2 is the sectional view that blowing pipeline device is stated in the present invention；
Fig. 3 is the structure diagram of heretofore described purging endless tube
Wherein, 1, crystallizer；11st, crystallizer paddle；12nd, crystallizer stirring motor；2nd, air inlet 3, crystallizer outlet
Pipeline；4th, cyclone separator；41st, separator paddle；42nd, separator stirring motor；5th, endless tube is purged, 51, purge hole；6th, it is electric
Magnet valve；7th, nitrogen inlet duct.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1 to Figure 2, the melamine crystallization apparatus of a kind of energy-saving high yield of the embodiment of the present invention, it includes knot
Brilliant device 1, cyclone separator 4 purge crystallization apparatus, and 1 upper end of crystallizer is equipped with air inlet 2, bottom outside is equipped with crystallizer
Outlet conduit 3,1 bottom end of crystallizer are equipped with crystallizer agitating device；The cyclone separator 3 has two, is separately positioned on
1 lower end both sides of crystallizer are connected by crystallizer outlet conduit 2 with crystallizer 1, and 4 bottom end of cyclone separator is provided with point
From device agitating device；Blowing pipeline device is provided in the crystallizer outlet conduit 2.
Crystallizer agitating device includes 1 stirring motor 12 of crystallizer paddle 11 and crystallizer；The crystallizer paddle
11 are arranged on 1 bottom inner portion of crystallizer；The crystallizer stirring motor 12 is mounted on outside crystallizer bottom end；Crystallizer outlet
Road 3 is the straight tube of inner wall smooth；The separator agitating device includes separator and stirs 41 leaves and separator stirring motor 42；Institute
It states separator paddle 41 and is arranged on 4 bottom inner portion of cyclone separator；The separator stirring motor 42 is mounted on cyclonic separation
Outside 4 bottom end of device.
Blowing pipeline device includes purging endless tube 5, solenoid valve 6, nitrogen inlet duct 7；The blowing pipeline device is arranged on
Partial outer face in crystallizer outlet conduit 3 is smooth；Endless tube 5 is purged to be mounted on the inner wall of crystallizer outlet conduit 3；Purging
Endless tube 5 is the hollow ring pipe of smooth outer surface, and purge hole 51 is provided on the purging endless tube；The nitrogen inlet duct 7 connects
Connect solenoid valve 6；6 other end of solenoid valve connection purging endless tube 5.
First start solenoid valve during the melamine crystallization apparatus use of the energy-saving high yield, allow nitrogen from blowing pipeline device
Blowout, restarts melamine crystallization apparatus；Mixed gas containing melamine enters crystallizer 1 by the air inlet 2
It is internal；Melamine from reaction gas is crystallized under the agitating device separation of crystallizer 1 and is precipitated and separates, from crystallizer
The technique mixed gas containing melamine powder that outlet conduit 3 comes out tangentially enters whirlwind by crystallizer outlet conduit 3
The top of separator 4, under the influence of centrifugal force, melamine powder be thrown toward wall and along wall and under, come together in whirlwind point
Bottom from device 4, the melamine powder being attached in mixed gas on pipe wall, by nitrogen inlet duct 7 into endless tube 5
The nitrogen of input dispels melamine powder, avoids melamine powder accumulation temperature raising and causes part melamine
The top of amine powder depositing crystalline device 1, significantly reduces the live load of crystallizer 1, effectively extends the production cycle.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (10)
1. a kind of melamine crystallization apparatus of energy-saving high yield, it includes crystallizer, and cyclone separator purges crystallization apparatus,
It is characterized in that：Crystallizer top is equipped with air inlet, and bottom outside is equipped with crystallizer outlet conduit, and crystallizer bottom end is equipped with crystallizer
Agitating device；Cyclone separator has two, is separately positioned on crystallizer lower end both sides, passes through crystallizer outlet conduit and crystallizer
It is connected, cyclone separator bottom end is provided with separator agitating device；Blowing pipeline device is provided in crystallizer outlet conduit.
2. a kind of melamine crystallization apparatus device of energy-saving high yield according to claim 1, it is characterised in that：Contain melamine
The mixed gas of amine enters crystallizer by air inlet.
3. a kind of melamine crystallization apparatus device of energy-saving high yield according to claim 1, it is characterised in that：Crystallizer stirs
Device includes crystallizer paddle and crystallizer stirring motor；Crystallizer paddle is arranged on crystallizer bottom inner portion；Crystallizer
Stirring motor is mounted on outside crystallizer bottom end.
4. a kind of melamine crystallization apparatus device of energy-saving high yield according to claim 3, it is characterised in that：Crystallizer exports
Pipeline is the straight tube of inner wall smooth.
5. a kind of melamine crystallization apparatus device of energy-saving high yield according to claim 1, it is characterised in that：Separator stirs
Device includes separator paddle and separator stirring motor；Separator paddle is arranged on cyclone separator bottom inner portion；Point
It is mounted on outside cyclone separator bottom end from device stirring motor.
6. a kind of melamine crystallization apparatus device of energy-saving high yield according to claim 1, it is characterised in that：Blowing pipeline fills
It puts including purging endless tube, solenoid valve, nitrogen inlet duct；Wherein blowing pipeline device is arranged on the part in crystallizer outlet conduit
Smooth outer surface.
7. a kind of melamine crystallization apparatus device of energy-saving high yield according to claim 1, it is characterised in that：Purge endless tube peace
On the inner wall of crystallizer outlet conduit；The hollow ring pipe that endless tube is smooth outer surface is purged, purges and is provided on endless tube
Purge hole.
8. a kind of melamine crystallization apparatus device of energy-saving high yield according to claim 1, it is characterised in that：Nitrogen inlet duct
Connect solenoid valve；Solenoid valve other end connection purging endless tube.
9. a kind of melamine crystallization apparatus device of energy-saving high yield according to claim 1, it is characterised in that：Melamine knot
Before brilliant device operation, first start solenoid valve, nitrogen is allowed to be blown out from blowing pipeline device, restarts melamine crystallization apparatus.
10. a kind of melamine crystallization apparatus device of energy-saving high yield according to claim 1, it is characterised in that：Melamine
Crystallization apparatus after hours, first stops the work of melamine crystallization apparatus, and blowing pipeline device worked on after a period of time,
Turn off solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810079169.9A CN108261798A (en) | 2018-01-26 | 2018-01-26 | A kind of melamine crystallization apparatus of energy-saving high yield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810079169.9A CN108261798A (en) | 2018-01-26 | 2018-01-26 | A kind of melamine crystallization apparatus of energy-saving high yield |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108261798A true CN108261798A (en) | 2018-07-10 |
Family
ID=62776752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810079169.9A Pending CN108261798A (en) | 2018-01-26 | 2018-01-26 | A kind of melamine crystallization apparatus of energy-saving high yield |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202270674U (en) * | 2011-08-26 | 2012-06-13 | 莱芜钢铁股份有限公司 | Nitrogen purging device for feed valve |
| CN102494980A (en) * | 2011-12-13 | 2012-06-13 | 上海化工研究院 | Concentration measuring and sampling device for high-temperature pressured dust |
| CN203269828U (en) * | 2013-06-18 | 2013-11-06 | 尹明大 | Tripolycyanamide production system |
| CN203916937U (en) * | 2014-06-12 | 2014-11-05 | 中化重庆涪陵化工有限公司 | Pipeline dust purging system for cyclone dust removal |
| CN105503758A (en) * | 2016-01-18 | 2016-04-20 | 尹明大 | Melamine production system and technique |
| CN207886725U (en) * | 2018-01-05 | 2018-09-21 | 安徽华尔泰化工股份有限公司 | A kind of spiral shape gas purging crystallization prevention device |
-
2018
- 2018-01-26 CN CN201810079169.9A patent/CN108261798A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202270674U (en) * | 2011-08-26 | 2012-06-13 | 莱芜钢铁股份有限公司 | Nitrogen purging device for feed valve |
| CN102494980A (en) * | 2011-12-13 | 2012-06-13 | 上海化工研究院 | Concentration measuring and sampling device for high-temperature pressured dust |
| CN203269828U (en) * | 2013-06-18 | 2013-11-06 | 尹明大 | Tripolycyanamide production system |
| CN203916937U (en) * | 2014-06-12 | 2014-11-05 | 中化重庆涪陵化工有限公司 | Pipeline dust purging system for cyclone dust removal |
| CN105503758A (en) * | 2016-01-18 | 2016-04-20 | 尹明大 | Melamine production system and technique |
| CN207886725U (en) * | 2018-01-05 | 2018-09-21 | 安徽华尔泰化工股份有限公司 | A kind of spiral shape gas purging crystallization prevention device |
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Application publication date: 20180710 |
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