CN106276834A - The stirring means of potassium dihydrogen phosphate crystallisation by cooling - Google Patents
The stirring means of potassium dihydrogen phosphate crystallisation by cooling Download PDFInfo
- Publication number
- CN106276834A CN106276834A CN201610637806.0A CN201610637806A CN106276834A CN 106276834 A CN106276834 A CN 106276834A CN 201610637806 A CN201610637806 A CN 201610637806A CN 106276834 A CN106276834 A CN 106276834A
- Authority
- CN
- China
- Prior art keywords
- cooling
- dihydrogen phosphate
- potassium dihydrogen
- cooling tank
- water
- 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.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/26—Phosphates
- C01B25/30—Alkali metal phosphates
-
- 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
- B01D9/0081—Use of vibrations, e.g. ultrasound
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D2009/0086—Processes or apparatus therefor
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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
The invention discloses the stirring means of a kind of potassium dihydrogen phosphate crystallisation by cooling, comprise the following steps: 1) will filter after potassium dihydrogen phosphate add in cooling tank；2) cooling tank is outside equipped with water-injecting cavity, is passed in water-injecting cavity by tap water；3) potassium dihydrogen phosphate in cooling tank is stirred by puddler with the speed of 200～220 revs/min；4) starting angle electrical machinery, angle electrical machinery drives cooling tank to swing, and hunting period is according to 3～5S, 1～2S alternately, present invention process is simple, on the basis of prior art is passed through tap water cooling and stirring cooling, by the rotation of angle electrical machinery, improve the efficiency of cooling further.
Description
Technical field
The present invention relates to a kind of stirring means, the stirring means of a kind of potassium dihydrogen phosphate crystallisation by cooling.
Background technology
Patent documentation CN102910603A discloses the stirring means of a kind of potassium dihydrogen phosphate crystallisation by cooling, the method
Comprise the following steps: the cooling water of 3-5 DEG C is passed through in the cooling tube outside cooling tank by (1)；(2) potassium dihydrogen phosphate is added
In cooling tank；(3) start puddler with the speed of 250-300 rev/min, the potassium dihydrogen phosphate in cooling tank to be stirred
Mix；(4) in potassium dihydrogen phosphate joins cooling tank 1/2～during 2/3 liquid level, to being passed through 0-2 DEG C in cooling tube
Cooling water；(5) potassium dihydrogen phosphate in cooling tank is stirred by puddler with the speed of 100-150 rev/min, until
After potassium dihydrogen phosphate fills it up with cooling tank, crystallization is complete, and the method is on the basis of ensureing crystalline quality, it is possible to effectively carry
The efficiency of high potassium dihydrogen phosphate crystallisation by cooling.
But said method is when stirring, it is to carry out according to the slewing rate of rule, although the effect of cooling can be improved
Rate, but the space being still improved.
Summary of the invention
It is an object of the invention to provide the stirring means of a kind of potassium dihydrogen phosphate crystallisation by cooling, this stirring means improves
The efficiency of potassium dihydrogen phosphate crystallisation by cooling.
In order to solve above-mentioned technical problem, the technical scheme is that
The stirring means of a kind of potassium dihydrogen phosphate crystallisation by cooling, comprises the following steps:
(1) potassium dihydrogen phosphate after filtering adds in cooling tank；
(2) cooling tank is outside equipped with water-injecting cavity, is passed in water-injecting cavity by tap water；
(3) potassium dihydrogen phosphate in cooling tank is stirred by puddler with the speed of 200～220 revs/min；
(4) start angle electrical machinery, angle electrical machinery drive cooling tank swing, hunting period according to 3～5S, 1～2S replace into
OK.Hunting period alternately, breaks the rotation of " regular ", disturbs the regular flow of potassium dihydrogen phosphate further.
When stirring, by the angle electrical machinery rotation to tank body, the regular flow of potassium dihydrogen phosphate can be disturbed, right
Fluid forms disturbance, improves the efficiency of cooling.
Present invention process is simple, on the basis of prior art is passed through tap water cooling and stirring cooling, passes through corner
The rotation of motor, improves the efficiency of cooling further.
Detailed description of the invention
Embodiment 1
(1) potassium dihydrogen phosphate after filtering adds in cooling tank；
(2) cooling tank is outside equipped with water-injecting cavity, is passed in water-injecting cavity by 10 DEG C of tap waters；
(3) potassium dihydrogen phosphate in cooling tank is stirred by puddler with the speed of 200 revs/min；
(4) starting angle electrical machinery, angle electrical machinery drives cooling tank to swing, and hunting period is according to 5S, 2S alternately.
In cooling tank, potassium dihydrogen phosphate is fully crystallized time shortening 5 minutes, it is thus achieved that crystal grain degree is uniform.
Embodiment 2
(1) potassium dihydrogen phosphate after filtering adds in cooling tank；
(2) cooling tank is outside equipped with water-injecting cavity, is passed in water-injecting cavity by 5 DEG C of tap waters；
(3) potassium dihydrogen phosphate in cooling tank is stirred by puddler with the speed of 220 revs/min；
(4) starting angle electrical machinery, angle electrical machinery drives cooling tank to swing, and hunting period is according to 3S, 2S alternately.
In cooling tank, potassium dihydrogen phosphate is fully crystallized time shortening 4 minutes, it is thus achieved that crystal grain degree is uniform.
Embodiment 3
(1) potassium dihydrogen phosphate after filtering adds in cooling tank；
(2) cooling tank is outside equipped with water-injecting cavity, is passed in water-injecting cavity by 10 DEG C of tap waters；
(3) potassium dihydrogen phosphate in cooling tank is stirred by puddler with the speed of 200 revs/min；
(4) starting angle electrical machinery, angle electrical machinery drives cooling tank to swing, and hunting period is according to 5S, 1S alternately.
In cooling tank, potassium dihydrogen phosphate is fully crystallized time shortening 5 minutes, it is thus achieved that crystal grain degree is uniform.
Above-described embodiment limits the present invention never in any form, and the mode of every employing equivalent or equivalent transformation obtains
Technical scheme all fall within protection scope of the present invention.
Claims (1)
1. the stirring means of a potassium dihydrogen phosphate crystallisation by cooling, it is characterised in that comprise the following steps:
(1) potassium dihydrogen phosphate after filtering adds in cooling tank；
(2) cooling tank is outside equipped with water-injecting cavity, is passed in water-injecting cavity by tap water；
(3) potassium dihydrogen phosphate in cooling tank is stirred by puddler with the speed of 200～220 revs/min；
(4) starting angle electrical machinery, angle electrical machinery drives cooling tank to swing, and hunting period is according to 3～5S, 1～2S alternately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610637806.0A CN106276834A (en) | 2016-08-05 | 2016-08-05 | The stirring means of potassium dihydrogen phosphate crystallisation by cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610637806.0A CN106276834A (en) | 2016-08-05 | 2016-08-05 | The stirring means of potassium dihydrogen phosphate crystallisation by cooling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106276834A true CN106276834A (en) | 2017-01-04 |
Family
ID=57665376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610637806.0A Pending CN106276834A (en) | 2016-08-05 | 2016-08-05 | The stirring means of potassium dihydrogen phosphate crystallisation by cooling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106276834A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1317353A (en) * | 2001-02-28 | 2001-10-17 | 黄晸 | Differential crystallization method able to control gradient field and its equipment and application |
| CN102839201A (en) * | 2012-08-14 | 2012-12-26 | 张家港市华天药业有限公司 | Production method of oral-level fructose sodium diphosphate |
| CN102910603A (en) * | 2012-10-31 | 2013-02-06 | 常熟市圆启晶体材料有限公司 | Stirring method for cooling crystallization of potassium dihydrogen phosphate solution |
| CN203048601U (en) * | 2013-01-10 | 2013-07-10 | 贵州开磷（集团）有限责任公司 | Crystal ammonium phosphate cooling crystallization device |
| EP3006409A1 (en) * | 2013-07-05 | 2016-04-13 | Mitsubishi Heavy Industries, Ltd. | Water treatment method, and water treatment system |
-
2016
- 2016-08-05 CN CN201610637806.0A patent/CN106276834A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1317353A (en) * | 2001-02-28 | 2001-10-17 | 黄晸 | Differential crystallization method able to control gradient field and its equipment and application |
| CN102839201A (en) * | 2012-08-14 | 2012-12-26 | 张家港市华天药业有限公司 | Production method of oral-level fructose sodium diphosphate |
| CN102910603A (en) * | 2012-10-31 | 2013-02-06 | 常熟市圆启晶体材料有限公司 | Stirring method for cooling crystallization of potassium dihydrogen phosphate solution |
| CN203048601U (en) * | 2013-01-10 | 2013-07-10 | 贵州开磷（集团）有限责任公司 | Crystal ammonium phosphate cooling crystallization device |
| EP3006409A1 (en) * | 2013-07-05 | 2016-04-13 | Mitsubishi Heavy Industries, Ltd. | Water treatment method, and water treatment system |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170104 |