CN107185266A - Secondary crystallization system - Google Patents
Secondary crystallization system Download PDFInfo
- Publication number
- CN107185266A CN107185266A CN201710423701.XA CN201710423701A CN107185266A CN 107185266 A CN107185266 A CN 107185266A CN 201710423701 A CN201710423701 A CN 201710423701A CN 107185266 A CN107185266 A CN 107185266A
- Authority
- CN
- China
- Prior art keywords
- bucket
- crystallisation
- cooling
- crystallization system
- condensing crystallizing
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0059—General arrangements of crystallisation plant, e.g. flow sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0004—Crystallisation cooling by heat exchange
- B01D9/0013—Crystallisation cooling by heat exchange by indirect heat exchange
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0018—Evaporation of components of the mixture to be separated
- B01D9/0031—Evaporation of components of the mixture to be separated by heating
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G9/00—Compounds of zinc
- C01G9/06—Sulfates
Abstract
The invention discloses a kind of secondary crystallization system, according to the flow direction of material solution, include successively：Condensing crystallizing bucket, it is used to hold material solution to be crystallized；Middle bucket, it is connected by pipeline with condensing crystallizing bucket, flows into the concentrated mother liquor of middle bucket from condensing crystallizing bucket by primary crystallization for holding material solution；Crystallisation by cooling bucket, it is connected by pipeline and the middle bucket, for the concentrated mother liquor from middle bucket outflow；Apparatus of the present invention can disposably obtain the crystallized product obtained using two kinds of different crystallization modes, monohydrate zinc sulphate and white vitriol, convenient and swift, suitable for marketing；And be provided with crystallization remove device, its to condensing crystallizing bucket and crystallisation by cooling bucket bucket wall crystallize adhesion impurity handle, it is to avoid to later crystallization process produce harmful effect.
Description
Technical field
The present invention relates to crystallization art, more particularly to secondary crystallization system.
Background technology
In sulfuric acid Zn Cr coating condensing crystallizing field, traditional handicraft is that heating is concentrated to finite concentration, hot at a certain temperature
Crystallization production monohydrate zinc sulphate, then condensing crystallizing is separated out the mother liquor cooling crystallization of monohydrate zinc sulphate, obtain seven water sulphur
Sour zinc, but it is due to early stage monohydrate zinc sulphate precipitation process, mother liquor contains a large amount of zinc sulfate, and solution easily blocks pipeline, clear up
Waste time and energy, cause increasing substantially for production cost.
The content of the invention
It is an object of the invention to solve at least the above, and provide the advantage that at least will be described later.
It is a still further object of the present invention to provide a kind of secondary crystallization system, according to the flow direction of material solution, successively
Including：
Condensing crystallizing bucket, it is used to hold material solution to be crystallized；
Middle bucket, it connect by pipeline and the condensing crystallizing bucket, for hold material solution pass through primary crystallization from
Condensing crystallizing bucket flows into the concentrated mother liquor of middle bucket；
Crystallisation by cooling bucket, it is connected by pipeline and the middle bucket, for the concentrated mother liquor from middle bucket outflow；Its
In,
The crystallisation by cooling bucket includes outer cylinder body, and is set in the inner barrel inside the outer cylinder body, the inner barrel
It is separated by a distance between the outer cylinder body；The bottom of the outer cylinder body and the inner barrel mutually maintains an equal level, and is fixed as
One；
Coil pipe is provided with vertically in the condensing crystallizing bucket and crystallisation by cooling bucket；
Preferably, described secondary crystallization system, the crystallisation by cooling bucket top is correspondingly provided with an air exhauster, the exhausting
The direction of machine is set to extract the vapours in the crystallisation by cooling bucket, is emitted into outside.
Preferably, described secondary crystallization system, in addition to：
First centrifuge, it is connected with condensing crystallizing bucket, middle bucket respectively, and first centrifuge is used to accept institute
The solid crystal progress centrifugal dehydration that condensing crystallizing bucket is crystallized out is stated, monohydrate zinc sulphate is produced；
Second centrifuge, it is connected with crystallisation by cooling bucket, and second centrifuge is used to accept the crystallisation by cooling
The secondary solid crystal that bucket is crystallized out carries out centrifugal dehydration, produces white vitriol.
Preferably, in described secondary crystallization system, the condensing crystallizing bucket, middle bucket and crystallisation by cooling bucket respectively
One puddler of correspondence, the puddler is connected with rotary electric machine.
Preferably, described secondary crystallization system, in addition to：
Mother liquor pump, it extracts the concentrated mother liquor of the middle bucket, puts to crystallisation by cooling bucket.
Preferably, described secondary crystallization system, in addition to crystallization remove device, it includes：
Support, it is erected at the condensing crystallizing bucket or crystallisation by cooling bucket top, and the frame upper is cyclic structure；
Blade, it is attached at the inwall of the middle bucket vertically in the shape of a spiral, and the blade slides are set in the ring of support
In shape structure；The blade is connected with rotary electric machine, realizes that cyclic structure of the blade along the support carries out circular motion；Its
In, the blade is arranged at intervals multiple projections close to the side in circular motion direction；It is described raised along circular motion direction
Thickness increases successively；
The height of the blade vertically is slightly below the height of the middle bucket.
Preferably, described secondary crystallization system, the space filling cooling between the outer cylinder body and the inner barrel
Liquid.
Preferably, described secondary crystallization system, the coil pipe is distributed, is respectively equipped with inside the coil pipe in the shape of a spiral
Multiple projections.
The present invention at least includes following beneficial effect：In actual applications, by the zinc sulfate material solution of crystallization to be cooled
Pour into condensing crystallizing bucket；
1) crystallisation by cooling bucket is set to include inner barrel and outer cylinder body, the space filling cooling between inner barrel and outer cylinder body
Liquid, and air exhauster and coil pipe are set, the mother liquor to be crystallized in crystallizing tank is further cooled, to help crystallization；
2) present invention has set gradually condensing crystallizing bucket, middle bucket and crystallisation by cooling bucket in order, in mother liquor in concentration
After crystallizing tank heating condensing crystallizing, obtained monohydrate zinc sulphate solid will be crystallized with the first centrifuge and carries out centrifugal dehydration treatment,
Obtain product monohydrate zinc sulphate；Then the concentrated mother liquor in condensing crystallizing bucket then continues unified into middle bucket, middle bucket progress
Stirring, reduces its spontaneous nucleation as far as possible, and middle bucket finally have accumulated into a certain amount of concentrated mother liquor extracts to crystallisation by cooling bucket
The processing of one step decrease temperature crystalline, will crystallize obtained white vitriol solid with the second centrifuge and carries out centrifugal treating, obtain seven water
Zinc sulfate crystalline solid；It so can disposably obtain the crystallized product obtained using two kinds of different crystallization modes, sulfuric acid monohydrate
Zinc and white vitriol, it is convenient and swift, suitable for marketing；
3) present invention be provided with crystallization remove device, its to condensing crystallizing bucket and crystallisation by cooling bucket bucket wall crystallize adhesion
Impurity is handled, it is to avoid produce harmful effect to later crystallization process；
Further advantage, target and the feature of the present invention embodies part by following explanation, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Brief description of the drawings
Fig. 1 is the structural representation of the secondary crystallization bucket of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to specification text
Word can be implemented according to this.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or many
The presence or addition of individual other elements or its combination.
As shown in figure 1, the present invention provides a kind of secondary crystallization system, according to the flow direction of material solution, include successively：
Condensing crystallizing bucket 1, it is used to hold material solution to be crystallized；
Middle bucket 2, it is connected by pipeline with condensing crystallizing bucket 1, passes through primary crystallization for holding material solution
The concentrated mother liquor of middle bucket is flowed into from condensing crystallizing bucket 1；
Crystallisation by cooling bucket 3, it is connected by pipeline and the middle bucket 2, for the concentrated mother liquor flowed out from middle bucket 2；
Wherein,
Crystallisation by cooling bucket 3 includes outer cylinder body 310, and is set in the inner barrel 320 inside the outer cylinder body 310,
The inner barrel 320 is separated by a distance each other with the outer cylinder body 310；The outer cylinder body 310 and the inner barrel 320
Bottom mutually maintain an equal level, and be fixed as one；
Coil pipe is provided with vertically in the condensing crystallizing bucket 1 and crystallisation by cooling bucket 3；
Described secondary crystallization system, the top of crystallisation by cooling bucket 3 is correspondingly provided with an air exhauster 4, the court of the air exhauster 4
To being set to extract the vapours in the crystallisation by cooling bucket 3, outside is emitted into.
Described secondary crystallization system, in addition to：
First centrifuge 5, it is connected with condensing crystallizing bucket 1, and first centrifuge 5 is used to accept the concentration knot
The solid crystal that brilliant bucket 1 is crystallized out carries out centrifugal dehydration, and the mother liquor after being then centrifuged for enters middle bucket；
Second centrifuge 6, it is connected with crystallisation by cooling bucket 3, and second centrifuge 5 is used to accept the cooling knot
The secondary solid crystal that brilliant bucket 3 is crystallized out carries out centrifugal dehydration.
Described secondary crystallization system, in addition to：
Mother liquor pump, it extracts the concentrated mother liquor of the middle bucket, puts to crystallisation by cooling bucket.
Described secondary crystallization system, in addition to crystallization remove device 7, it includes：
Support 710, it is erected at the top of middle bucket 2, and the frame upper is cyclic structure；
Blade 720, it is attached at the inwall of the middle bucket 2 vertically in the shape of a spiral, and the blade 720 is slidably located in branch
In the cyclic structure of frame 710；The blade 720 is connected with rotary electric machine, realizes ring-type of the blade 720 along the support 710
Structure carries out circular motion；Wherein, the blade 720 is arranged at intervals multiple projections close to the side in circular motion direction；Along
Circular motion direction, the raised thickness increases successively；
The height of the blade 720 vertically is slightly below the height of the middle bucket 2.
Mother liquor is dehydrated subsequently into the first centrifuge in condensing crystallizing bucket condensing crystallizing, obtains product sulfuric acid monohydrate
Zinc, the mother liquor after centrifugation enters back into middle bucket, and enters crystallisation by cooling bucket, crystallisation by cooling, into the second centrifuge from middle bucket
Centrifugal dehydration is carried out, product white vitriol is obtained.
Although embodiment of the present invention is disclosed as above, it is not restricted in specification and embodiment listed
With it can be applied to various suitable the field of the invention completely, can be easily for those skilled in the art
Other modification is realized, therefore under the universal limited without departing substantially from claim and equivalency range, the present invention is not limited
In specific details and shown here as the legend with description.
Claims (8)
1. a kind of secondary crystallization system, it is characterised in that according to the flow direction of material solution, include successively：
Condensing crystallizing bucket, it is used to hold material solution to be crystallized；
Middle bucket, it is connected by pipeline with condensing crystallizing bucket, passes through primary crystallization from concentration for holding material solution
Crystallizing tank flows into the concentrated mother liquor of middle bucket；
Crystallisation by cooling bucket, it is connected by pipeline and the middle bucket, for the concentrated mother liquor from middle bucket outflow；Wherein,
The crystallisation by cooling bucket includes outer cylinder body, and is set in the inner barrel inside the outer cylinder body, the inner barrel and institute
State separated by a distance between outer cylinder body；The bottom of the outer cylinder body and the inner barrel mutually maintains an equal level, and is fixed as one；
Coil pipe is provided with vertically in the condensing crystallizing bucket and crystallisation by cooling bucket.
2. secondary crystallization system as claimed in claim 1, it is characterised in that the crystallisation by cooling bucket top is correspondingly provided with one and taken out
Blower fan, the direction of the air exhauster is set to extract the vapours in the crystallisation by cooling bucket, is emitted into outside.
3. secondary crystallization system as claimed in claim 1, it is characterised in that also include：
First centrifuge, it is connected with condensing crystallizing bucket, middle bucket respectively, and first centrifuge is used to accept described dense
The solid crystal that contracting crystallizing tank thermal crystalline comes out carries out centrifugal dehydration；
Second centrifuge, it is connected with crystallisation by cooling bucket, and second centrifuge is cold for accepting the crystallisation by cooling bucket
The secondary solid crystal crystallized out carries out centrifugal dehydration.
4. secondary crystallization system as claimed in claim 1, it is characterised in that the condensing crystallizing bucket, middle bucket and cooling
A puddler is corresponded in crystallizing tank respectively, the puddler is connected with rotary electric machine.
5. secondary crystallization system as claimed in claim 1, it is characterised in that also include：
Mother liquor pump, it extracts the concentrated mother liquor of the middle bucket, puts to crystallisation by cooling bucket.
6. secondary crystallization system as claimed in claim 1, it is characterised in that also including crystallization remove device, it includes：
Support, it is erected above the middle bucket, and the frame upper is cyclic structure；
Blade, it is attached at the inwall of the middle bucket vertically in the shape of a spiral, and the blade slides are set in the ring-type knot of support
On structure；The blade is connected with rotary electric machine, realizes that cyclic structure of the blade along the support carries out circular motion；Wherein,
The blade is arranged at intervals multiple projections close to the side in circular motion direction；Along circular motion direction, the raised thickness
Degree increases successively；
The height of the blade vertically is slightly below the height of the middle bucket.
7. secondary crystallization system as claimed in claim 1, it is characterised in that the sky between the outer cylinder body and the inner barrel
Gap fills coolant.
8. secondary crystallization system as claimed in claim 1, it is characterised in that the coil pipe is distributed in the shape of a spiral, the coil pipe
Inside is respectively equipped with multiple projections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710423701.XA CN107185266A (en) | 2017-06-07 | 2017-06-07 | Secondary crystallization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710423701.XA CN107185266A (en) | 2017-06-07 | 2017-06-07 | Secondary crystallization system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107185266A true CN107185266A (en) | 2017-09-22 |
Family
ID=59877294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710423701.XA Pending CN107185266A (en) | 2017-06-07 | 2017-06-07 | Secondary crystallization system |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112097464A (en) * | 2020-09-07 | 2020-12-18 | 衡阳百赛化工实业有限公司 | Zinc sulfate vacuum cooling device |
Citations (9)
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|---|---|---|---|---|
| US3510266A (en) * | 1967-03-29 | 1970-05-05 | Merck & Co Inc | Production of crystals in a fluidized bed with ultrasonic vibrations |
| CN201441835U (en) * | 2009-08-06 | 2010-04-28 | 山东阳谷华泰化工股份有限公司 | Demineralizer for multi-effect evaporation crystallization liquid |
| CN103012270A (en) * | 2012-12-31 | 2013-04-03 | 河北冀衡（集团）药业有限公司 | Method for recovering antipyrine from mother solution after crystallization of antipyrine crude oil |
| CN204709856U (en) * | 2015-06-23 | 2015-10-21 | 浙江联大化工股份有限公司 | Prepare the spray crystallizer of sodium nitrate |
| CN105174588A (en) * | 2015-10-19 | 2015-12-23 | 双良节能系统股份有限公司 | Coking industry desulfurization waste water zero discharge treatment system |
| CN205603385U (en) * | 2016-01-14 | 2016-09-28 | 麦王环境技术股份有限公司 | Concentrated and branch matter crystallization equipment of strong brine zero release membrane |
| CN106117012A (en) * | 2016-06-22 | 2016-11-16 | 苏州苏震生物工程有限公司 | A kind of separation and recovery method of fermentation liquid electrodialysis desalination dense room liquid |
| CN205856227U (en) * | 2016-05-06 | 2017-01-04 | 武汉宏澳绿色能源工程有限责任公司 | A kind of Coal Chemical Industry high-salt wastewater divides the device of salt-pepper noise |
| CN106379920A (en) * | 2016-11-17 | 2017-02-08 | 河北言明化工设备有限公司 | Device and method of preparing pure lithium chloride solution by precipitating sodium through evaporation of mixed aqueous solution of lithium chloride and sodium chloride |
-
2017
- 2017-06-07 CN CN201710423701.XA patent/CN107185266A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3510266A (en) * | 1967-03-29 | 1970-05-05 | Merck & Co Inc | Production of crystals in a fluidized bed with ultrasonic vibrations |
| CN201441835U (en) * | 2009-08-06 | 2010-04-28 | 山东阳谷华泰化工股份有限公司 | Demineralizer for multi-effect evaporation crystallization liquid |
| CN103012270A (en) * | 2012-12-31 | 2013-04-03 | 河北冀衡（集团）药业有限公司 | Method for recovering antipyrine from mother solution after crystallization of antipyrine crude oil |
| CN204709856U (en) * | 2015-06-23 | 2015-10-21 | 浙江联大化工股份有限公司 | Prepare the spray crystallizer of sodium nitrate |
| CN105174588A (en) * | 2015-10-19 | 2015-12-23 | 双良节能系统股份有限公司 | Coking industry desulfurization waste water zero discharge treatment system |
| CN205603385U (en) * | 2016-01-14 | 2016-09-28 | 麦王环境技术股份有限公司 | Concentrated and branch matter crystallization equipment of strong brine zero release membrane |
| CN205856227U (en) * | 2016-05-06 | 2017-01-04 | 武汉宏澳绿色能源工程有限责任公司 | A kind of Coal Chemical Industry high-salt wastewater divides the device of salt-pepper noise |
| CN106117012A (en) * | 2016-06-22 | 2016-11-16 | 苏州苏震生物工程有限公司 | A kind of separation and recovery method of fermentation liquid electrodialysis desalination dense room liquid |
| CN106379920A (en) * | 2016-11-17 | 2017-02-08 | 河北言明化工设备有限公司 | Device and method of preparing pure lithium chloride solution by precipitating sodium through evaporation of mixed aqueous solution of lithium chloride and sodium chloride |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112097464A (en) * | 2020-09-07 | 2020-12-18 | 衡阳百赛化工实业有限公司 | Zinc sulfate vacuum cooling device |
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Application publication date: 20170922 |