CN209679542U - One kind is sublimated crystallizer - Google Patents
One kind is sublimated crystallizer Download PDFInfo
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- CN209679542U CN209679542U CN201822241120.7U CN201822241120U CN209679542U CN 209679542 U CN209679542 U CN 209679542U CN 201822241120 U CN201822241120 U CN 201822241120U CN 209679542 U CN209679542 U CN 209679542U
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- sublimating
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- crystallizer
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Abstract
The utility model belongs to chemical equipment technical field, and in particular to one kind can obtain the crystallizer of sublimating of big crystalline particle.The crystallizer of sublimating includes, nucleus forms section, crystal growing section and discharging section, the utility model outside cylinder by being arranged insulation construction, it being capable of each section of temperature and temperature drop amplitude in application cylinder body, and then the formation of nucleus and the growth of crystal are controlled, to obtain the crystallized stock of desirable particle size.Meanwhile insulation construction can also keep the temperature cylinder inboard wall, avoid the crystallization and fouling of cylinder inboard wall, further avoid the collapsing of crystallized stock, block discharge port；The case where rotary part is arranged, scrapes crystallized stock from barrel by the rotation of rotary part and drives to discharge hole for discharge, be not in discharge port blocking in discharging section bottom ensure that the steady and continuous operation of equipment.Equipment provided by the utility model, structure is simple, does not need the setting of complicated good antiscale property structure, does not need periodically stop scale removal and maintenance.
Description
Technical field
The utility model belongs to chemical equipment technical field, and in particular to one kind can obtain the knot of sublimating of big crystalline particle
Brilliant equipment.
Background technique
It sublimates and refers to the phenomenon that substance directly becomes solid-state from gaseous state, crystallization of also referred to as sublimating is substance in temperature and air pressure
A kind of states of matter variation occurred when lower than three phase point, such as snow are exactly that vapor is sublimated generation.It sublimates to crystallize and answer extensively
For petrochemical industry.
For example, the melamine of generation is existed in a gaseous form at 350 DEG C in traditional preparation technology of melamine
In hot process gas, requires to be mixed with cold air with hot process gas, melamine is sublimated by gaseous state after reducing temperature
For solid-state, and carry out gas solid separation.But specific different isolation technics of sublimating will lead to product granularity, the color of product, dress
Setting running stability can be very different.Meanwhile producing sublimate crystallizer operating condition and the discharging feelings of melamine plant
The quality of condition directly influences the operating condition of whole equipment, thus it is guaranteed that the continuous and steady operation of crystallizer discharging is to Guan Chong
It wants.
In the prior art, following problems are primarily present during Melamine Production: (1) by crystallizer internal temperature field
Influence, crystalline particle degree of sublimating is less than normal, generally less than 30 microns, it is not easy to package and transport.With the enlargement of device, temperature
More bad control, small even more serious of crystalline particle.(2) it is easy on the structural member of the inside of equipment and in equipment barrel
Wall, agglomeration are tied, knot wall and agglomeration over time, can be increasingly thicker, and it is increasing, until causing monolith material to collapse from above
It collapses.The material of agglomeration knot wall to collapse will affect the quality of product, block outlet conduit.(3) outlet conduit is containing gas and to consolidate
Body two-phase medium, and have the material being fully crystallized in gas phase or not, it is easy to continue to crystallize and block pipeline on outlet conduit,
In addition the problem that collapses of top agglomeration, the gases exit line of crystallizer are also easy to block.
Based on above-mentioned analysis, provide it is a kind of it is stable, reduce influence of the temperature field to grain size number, be not easy to collapse
The crystallizer of sublimating to collapse with blockage problem is the another problem urgently to be resolved that those skilled in the art face.
Utility model content
Therefore, the technical problem to be solved by the present invention is to overcome crystalline particle degree in the prior art less than normal, easily
Wall, agglomeration are tied, pipeline is easy the defects of blocking, so that big crystalline particle can be obtained by providing one kind, can prevent knot wall, knot
The crystallizer of sublimating of block and line clogging.
In order to solve the above technical problems, the utility model adopts the following technical solution:
One kind is sublimated crystallizer, comprising: cylinder, the cylinder are divided into from top to bottom:
Nucleus forms section, and top is provided with process gas import, and outside is provided with the first insulation construction；
Crystal growing section, is provided with several cold air air inlet pipe, and outside is provided with the second insulation construction；
Discharging section, bottom are provided with solid outlet and rotary part, and the rotary part moves crystalline solid material web
It discharges to solid outlet, the discharging section is provided with gas discharge mouth, and outside is provided with third insulation construction.
Further, distance of the gas outlet of the cold air air inlet pipe apart from the Barrel alignment is 0.05-0.25 times
Crystal growing section barrel diameter.
Further, the nucleus forms 0.4-0.9 times that the barrel diameter of section is crystal growing section barrel diameter.
Further, the cold air air inlet pipe multilayer is arranged alternately.The quantity of every layer of cold air air inlet pipe is 4-24.
Further, cold air endless tube is set outside the crystal growing section, is connected with the cold air air inlet pipe.
Further, second insulation construction and third insulation construction are wholely set.
Further, first insulation construction, the second insulation construction and third insulation construction are honeycomb jacket, described
The inlet and outlet of several layers honeycomb duct and the disengaging for thermal insulation medium is provided on honeycomb jacket.
Further, the rotary part is rotatable scraper or blade.
It further, further include driving device, for driving the rotary part.In the present invention, the driving
Device can be motor.
Technical solutions of the utility model have the advantages that
1. crystallizer provided by the utility model of sublimating, including cylinder, the cylinder are divided into from top to bottom: nucleus
Section is formed, top is provided with process gas import, and outside is provided with the first insulation construction；Crystal growing section is provided with several cold air
Air inlet pipe, outside are provided with the second insulation construction；Discharging section, bottom are provided with solid outlet and rotary part, the rotation
Crystalline solid material web is moved to solid outlet and is discharged by component, and the discharging section is provided with gas discharge mouth, and outside is provided with
Third insulation construction.The utility model by the way that insulation construction is arranged outside cylinder, can in application cylinder body each section of temperature and
Temperature drop amplitude, and then the formation of nucleus and the growth of crystal are controlled, to obtain the crystallized stock of desirable particle size.Meanwhile it keeping the temperature
Structure can also keep the temperature cylinder inboard wall, avoid the crystallization and fouling of cylinder inboard wall, further avoid crystallized stock
It collapses, blocks discharge port；Rotary part is set in discharging section bottom, scrapes crystallized stock from barrel by the rotation of rotary part
The case where descending and drive to discharge hole for discharge, being not in discharge port blocking ensure that the steady and continuous operation of equipment.This is practical
The equipment of novel offer, structure is simple, does not need the setting of complicated good antiscale property structure, does not need periodically stop scale removal and dimension
Shield.
Crystallizer provided by the utility model of sublimating, the gas outlet of the cold air air inlet pipe is apart from the Barrel alignment
Distance be 0.05-0.25 times of crystal growing section barrel diameter.Avoid part of the cold air air inlet pipe inside equipment too long, from
And avoid the accumulation of the knot wall in cold air air inlet pipe and materials inside and across material.
Crystallizer provided by the utility model of sublimating, the barrel diameter that the nucleus forms section is crystal growing section cylinder
0.4-0.9 times of diameter.The process gas for carrying nucleus moves from top to bottom, and barrel dliameter becomes larger, and air-flow slows down, conducive to crystal
It grows up, the crystal grain of larger particles degree can be obtained.
Crystallizer provided by the utility model of sublimating, the cold air air inlet pipe multilayer are arranged alternately.It can satisfy device
Enlargement requirement so that crystal growing section interior temperature distribution is more evenly, conducive to growing up for crystal.
Crystallizer provided by the utility model of sublimating, first insulation construction, the second insulation construction and third heat preservation
Structure is honeycomb jacket, be provided on the honeycomb jacket several layers honeycomb duct and for thermal insulation medium disengaging import and go out
Mouthful.There is equally distributed multi-layer honeycomb pipe on honeycomb duct collet and the distribution of fixed and gas is played to collet, this is to large size
For equipment, especially fixation, which seems, is even more important.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 be the utility model a kind of embodiment in sublimate the structural schematic diagram of crystallizer；
Fig. 2 is the schematic diagram of material trend in a kind of embodiment of the utility model；
Description of symbols:
1- nucleus forms section；11- process gas import；The first insulation construction of 12-；13- the first thermal insulation medium import；
The outlet of the first thermal insulation medium of 14-；15- honeycomb duct；2- crystal growing section；21- cold air air inlet pipe；The heat preservation knot of 22- second
Structure；23- the second thermal insulation medium import；The outlet of the second thermal insulation medium of 24-；25- cold air endless tube；26- cold air import；3- goes out
Expect section；31- solid outlet；32- rotary part；33- third insulation construction；34- driving device；35- gas discharge
Mouthful；4- cylinder；
The numbering of appended drawing reference, such as: certain device includes: A component, is indicated with 1, and A component includes three parts,
Then indicated respectively with 11,12 and 13, if serial number 11 represent part further include three parts, with 111,112,113 come
It indicates.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other
Not constituting conflict can be combined with each other.
Embodiment 1
The present embodiment provides a kind of crystallizations to sublimate equipment, as shown in Figure 1, comprising: cylinder 4, the cylinder 4 from top to bottom according to
It is secondary to be divided into:
Nucleus forms section 1, and top is provided with process gas import 11, and outside is provided with the first insulation construction 12；
Crystal growing section 2, is provided with several cold air air inlet pipe 21, and outside is provided with the second insulation construction 22；
Discharging section 3, bottom are provided with solid outlet 31 and rotary part 32, and the rotary part 32 is by crystalline solid
Material strip is moved to solid outlet 31 and is discharged, and the discharging section 3 is provided with gas discharge mouth 35, and outside is provided with third insulation construction
33.In the present embodiment, the gas discharge mouth is the discharge nozzle for extending into 3 center of discharging section.
Above-mentioned crystallization equipment of sublimating by the way that insulation construction is arranged outside cylinder 4 can control each section in cylinder 4 of temperature
Degree and temperature drop amplitude, and then the formation of nucleus and the growth of crystal are controlled, to obtain the crystallized stock of desirable particle size.Meanwhile
Insulation construction can also keep the temperature cylinder inboard wall, avoid the crystallization and structure of cylinder inboard wall, further avoid crystal
The collapsing of material blocks solid outlet 31 and gas discharge port 35；Rotary part 32 is set in 3 bottom of discharging section, by rotation
Crystallized stock is scraped from barrel and is driven to solid outlet 31 and discharged by the rotation of component, is not in the feelings of discharge port blocking
Condition ensure that the steady and continuous operation of equipment.
In the present embodiment, second insulation construction 22 and third insulation construction 33 are wholely set, in the second heat preservation knot
It is provided with the second thermal insulation medium entrance 23 entered for thermal insulation medium on structure 22, is provided on third insulation construction 33 for heat preservation
The second thermal insulation medium outlet 24 of medium outflow.Specifically, first insulation construction 12, the second insulation construction 22 and third are protected
Warm structure 33 is honeycomb jacket, and several layers honeycomb duct 15 is provided on the honeycomb jacket；On first insulation construction 12
It is provided with the first thermal insulation medium entrance 13 for the disengaging of the first thermal insulation medium and the first thermal insulation medium outlet 14.Have on honeycomb jacket
Equally distributed multi-layer honeycomb pipe 15 can play the role of the distribution of fixed and gas to honeycomb jacket, this to large scale equipment and
Speech, especially fixation, which seems, is even more important.
As an improvement embodiment, the gas outlet of the cold air air inlet pipe 21 apart from the Barrel alignment away from
From for 0.05-0.25 times of crystal growing section barrel diameter.It so, it is possible to avoid part of the cold air air inlet pipe 21 inside equipment
It is too long, so as to avoid the accumulation of the knot wall in cold air air inlet pipe 21 and materials inside and across material.
As an improvement embodiment, the barrel diameter that the nucleus forms section is crystal growing section barrel diameter
0.4-0.9 times.In this way, the process gas for carrying nucleus moves from top to bottom, barrel dliameter becomes larger, and air-flow slows down, conducive to the length of crystal
Greatly, so as to obtaining the crystal grain of larger particles degree.
As an improvement embodiment, cold air endless tube 25 is set outside the crystal growing section 2, with the cold air into
Tracheae 21 is connected.21 multilayer of cold air air inlet pipe is arranged alternately, and the quantity of every layer of cold air air inlet pipe 21 is 4-24.In
Cold air air inlet pipe 21 is set as two layers in the present embodiment, 10 cold air air inlet pipe 21 of every layer of setting.It so, it is possible to meet device
The requirement of enlargement, so that 2 interior temperature distribution of crystal growing section is more evenly, conducive to growing up for crystal.
As an improvement embodiment, the rotary part 32 be rotatable scraper or blade, further include driving
Device 34, for driving the rotary part 32.Specifically, the rotary part in the present embodiment is scraper, in the drive of motor
Under rotated, crystallized stock is scraped off from barrel and drive to solid outlet discharge, avoid the occurrence of discharge port blocking
The case where.
In conjunction with Fig. 2, it is illustrated by taking above-mentioned practical application of the crystallizer in Melamine Production of sublimating as an example below,
The following steps are included:
Nucleus formation stages: (main component is melamine, ammonia and CO to the high-temperature gas of the material containing melamine2) from
The process gas import 11 at the top of crystallizer cylinder 4 of sublimating is delivered to nucleus and forms section 1, and from a small amount of of crystal growing section 2
(main component is ammonia and CO to cold air2) mixed.The pressure sublimated inside crystallizer is 0.3MPa, and melamine is pressed herein
Melting temperature under power is 300 DEG C, and it is 270-300 DEG C that Gu, which controls this section of temperature, starts crystallization in gaseous phase materials at this time and is formed less
Measure nucleus；This section of temperature cannot be too low, avoids the formation of excessive nucleus.Nucleus forms outside section 1 and is provided with honeycomb jacket, collet
It is passed through heat preservation gas inside as cylinder inboard wall heat preservation, the temperature of this section of collet is controlled at 270-300 DEG C, guarantees non-scaling on cylinder 4
With knot wall.
Crystal growth phase: 1 melamine of section is formed there is no crystallizing completely in nucleus, a small amount of nucleus is only formed, carries
The process gas of nucleus continues to be sufficiently mixed and cool down downwards with a large amount of cold air counter current contactings more from crystal growing section 2,
With the reduction of temperature, more crystal generate on nucleus, and nucleus is gradually grown up, and are in the crystal grain average grain diameter of this section
55 microns；It in 2 cold air of crystal growing section is entered in cold air endless tube 25 by cold air import 26, cold air endless tube is arranged in equipment
It is external.Annular is evenly arranged multiple outlets and is connected to cold air air inlet pipe 21 on cold air endless tube 25, and cold air is introduced crystal growth
In section 2.Since equipment is larger, air conditioning quantity is also very big, and the number of plies of cold air air inlet pipe 21 can be set 2 layers, and every layer is arranged 12, on
Lower two layers of cold air air inlet pipe is uniformly staggeredly arranged.Distance of the cold air air inlet pipe cold air outlet apart from equipment center line is 0.25 times of crystalline substance
Body grows section barrel diameter.
Discharging stage: crystallizing complete solid with hot gas and the mixed gas of cold air downwardly together, into discharging section 3,
Gas solid separation under the action of gravity and inertia, melamine solid deposit to device bottom, under the promotion of revolving scraper into
Enter the discharging of solid outlet 31, directly can pack and store.Scraper rotation simultaneously can also prevent solid from agglomerating in bottom.Contain
There is the mixed gas of a small amount of melamine solid, go out from the gas outlet tube for being deep into equipment center, is sent into subsequent workshop section, into
The gas solid separation of one step.The rotation of scraper is by the motor driven outside equipment, and revolving speed 20r/min, revolving speed is relatively low, mainly
It is the stability in order to improve equipment, equipment is hardly damaged.
Method for crystallising provided by the utility model of sublimating, crystalline particle degree are greater than 50 microns, are far longer than the prior art
30 microns.Meanwhile crystallizer of sublimating knot wall and across material problem be resolved, the outlet of material is to there is no blockings
The cycle of operation of situation, equipment is more stable.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes among the protection scope created still in the utility model.
Claims (10)
- The crystallizer 1. one kind is sublimated characterized by comprising cylinder, the cylinder are divided into from top to bottom:Nucleus forms section, and top is provided with process gas import, and outside is provided with the first insulation construction；Crystal growing section, is provided with several cold air air inlet pipe, and outside is provided with the second insulation construction；Discharging section, bottom are provided with solid outlet and rotary part, and the rotary part moves crystalline solid material web to solid Body discharge hole for discharge, the discharging section are provided with gas discharge mouth, and outside is provided with third insulation construction.
- 2. crystallizer according to claim 1 of sublimating, which is characterized in that the gas outlet of the cold air air inlet pipe is apart from institute The distance for stating Barrel alignment is 0.05-0.25 times of crystal growing section barrel diameter.
- 3. crystallizer according to claim 1 of sublimating, which is characterized in that the barrel diameter that the nucleus forms section is brilliant Body grows 0.4-0.9 times of section barrel diameter.
- 4. crystallizer according to claim 1 of sublimating, which is characterized in that the cold air air inlet pipe multilayer is arranged alternately.
- 5. crystallizer according to claim 1 of sublimating, which is characterized in that cold air ring is arranged outside the crystal growing section Pipe, is connected with the cold air air inlet pipe.
- 6. crystallizer according to claim 1 of sublimating, which is characterized in that second insulation construction and third heat preservation knot Structure is wholely set.
- 7. crystallizer according to claim 1 of sublimating, which is characterized in that first insulation construction, the second heat preservation knot Structure and third insulation construction are honeycomb jacket, and several layers honeycomb duct is provided on the honeycomb jacket and is passed in and out for thermal insulation medium Thermal insulation medium import and thermal insulation medium outlet.
- 8. crystallizer according to claim 1-7 of sublimating, which is characterized in that the rotary part is that can revolve The scraper or blade turned.
- 9. crystallizer according to claim 1-7 of sublimating, which is characterized in that further include driving device, be used for Drive the rotary part.
- 10. crystallizer according to claim 4 of sublimating, which is characterized in that 4-24 cold air air inlet pipe of every layer of setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822241120.7U CN209679542U (en) | 2018-12-28 | 2018-12-28 | One kind is sublimated crystallizer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822241120.7U CN209679542U (en) | 2018-12-28 | 2018-12-28 | One kind is sublimated crystallizer |
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| CN209679542U true CN209679542U (en) | 2019-11-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109529397A (en) * | 2018-12-28 | 2019-03-29 | 四川金象赛瑞化工股份有限公司 | One kind is sublimated crystallizer and method for crystallising |
| CN110893286A (en) * | 2019-12-19 | 2020-03-20 | 靖江神驹容器制造有限公司 | O-chlorobenzonitrile catcher |
-
2018
- 2018-12-28 CN CN201822241120.7U patent/CN209679542U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109529397A (en) * | 2018-12-28 | 2019-03-29 | 四川金象赛瑞化工股份有限公司 | One kind is sublimated crystallizer and method for crystallising |
| CN110893286A (en) * | 2019-12-19 | 2020-03-20 | 靖江神驹容器制造有限公司 | O-chlorobenzonitrile catcher |
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