CN208541829U - A kind of ammonium sulphate crystallizer and carrying device with crystal size sizing screening function - Google Patents
A kind of ammonium sulphate crystallizer and carrying device with crystal size sizing screening function Download PDFInfo
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- CN208541829U CN208541829U CN201820053543.3U CN201820053543U CN208541829U CN 208541829 U CN208541829 U CN 208541829U CN 201820053543 U CN201820053543 U CN 201820053543U CN 208541829 U CN208541829 U CN 208541829U
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- leg
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Abstract
The utility model relates to a kind of ammonium sulphate crystallizer and carrying devices with crystal size sizing screening function.It is multistage floatation structure that the utility model crystallizer, which eluriates leg,；In the bottom for eluriating leg, inlet pipeline is set；Floatation structure includes stepped diversion cylinder, bubble trap, crystallization discharge port and water supplement port composition；Each grade of classification guide shell and bubble trap composition, large particle crystal discharge port, middle rank crystallization discharge port, fine grain discharge port in the medium position of respective stepped diversion cylinder, are welded on outer sleeve respectively；The water supplement port of inlet pipeline, positioned at the underface of afterbody stepped diversion cylinder, the other end is welded in eluriate and connect on leg outer sleeve with external source.It in contrast to former DTB device, eluriates leg structure and increases multistage floatation structure, sizing screening effectively can be carried out to crystallization and discharged again, realize accurate screening function.It eluriates leg bottom and increases feed water flow stock, play washing effect, improve the cleanliness of crystal to improve the quality of product.
Description
Technical field
The utility model relates to a kind of novel ammonium sulfate crystallization equipment technical fields, and in particular to one kind has crystal size
The ammonium sulphate crystallizer and carrying device of sizing screening function.
Background technique
Ammonium sulfate is a kind of salt for being reacted and being generated with ammonia by sulfuric acid, contains 21%N, 24%S, is crystal white or yellowish,
It is a kind of important raw material of industry and chemical fertilizer.As the raw material of industry, ammonium sulfate is mainly used as fire retardant to reduce burning
Temperature in biochemical lines as precipitating reagent with purified protein, while being widely used in the industries such as dyeing and weaving, leather.As
Fertilizer, ammonium sulfate hygroscopicity is small, do not agglomerate, chemical stability is good, into soil after generate stronger acidity, be suitble in alkaline soil
It is applied on earth.
Ammonium sulfate product currently on the market is mostly the by-product of other technical process, such as caprolactam production process, alkane
Base waste acid treatment process etc., the approach for obtaining product generally uses crystallization operation.In ammonium sulfate crystallization operating process, equipment
Inner wall crystallization easy to attach, at the phase interface that especially saturated solution is in contact with its Balance Air, it is easy to grow thickness thickness
Crystallizing layer, result in blockage, influence the long-period stable operation of equipment.
DTB type crystallizer is a kind of crystallizer of the higher production ammonium sulfate of efficiency occurred the end of the fifties.It is applied to earliest
The industrial departments such as production potassium chloride is afterwards chemical industry, food, pharmacy are widely used.So far DTB type crystallizer is all continuous crystalizer
One of broad form, can be used for the solution process of vacuum cooled method, evaporation, direct contact refrigeration and reaction method.DTB type knot
Brilliant device combines early stage crystallization processes and equipment feature, integrates the functions such as interior circulation, outer circulation, crystal classification, having can give birth to
Produce that larger crystal (granularity is up to 600-12um), production intensity is high, is not easy the advantages that scabbing in device.In recent years, external DTB type knot
The development and application research of brilliant device deepens continuously, and the structure corrective measure much taken Wei a certain function is improved, this hair occurs
It is bright that innovative design has been done to elutriation leg structure on the basis of DTB mold structure.In order to make crystal with narrower granularity point
Cloth, the bottom of DTB type crystallizer, which is provided with, eluriates leg.The crystal for growing into certain particle size range, which is fallen into, to be eluriated in leg, upward
Under the elutriation stream effect flowed, it is graded again.Small crystal returns to continued growth in crystallizer, big finished product with elutriation stream
Crystallization harvesting is in accumulating certain content outside finished product magma outlet displacer in leg.Under normal circumstances, it is smaller to eluriate leg diameter,
Without any attachment device in it.Fall into eluriate leg crystal particles it is practically impossible to the states of being evenly distributed, merely with elutriation
Liquid stream completes crystal re-grading, it is difficult to ensure that product grading Spreading requirements.On this basis, the present invention is carried out to leg structure is eluriated
It improves, to realize the Accurate Classification of crystal product grading.
Summary of the invention
The utility model proposes a kind of ammonium sulphate crystallizer and carrying devices with crystal screening function, and which solves fall
The crystal particles for entering to eluriate leg can not be evenly distributed state, complete crystal re-grading merely with elutriation liquid stream, it is difficult to ensure that
The shortcomings that product grading Spreading requirements.
The utility model technology is as follows:
A kind of ammonium sulphate crystallizer and carrying device with crystal screening function, eluriating leg is multistage floatation structure.
In the bottom for eluriating leg, inlet pipeline is set.
Floatation structure includes stepped diversion cylinder, bubble trap, crystallization discharge port and water supplement port composition；Each grade of classification is led
Flow cartridge and bubble trap composition, large particle crystal discharge port, middle rank crystallization discharge port, fine grain discharge port are respectively being classified respectively
The medium position of guide shell, is welded on outer sleeve；The water supplement port of inlet pipeline, positioned at afterbody stepped diversion cylinder just under
Side, the other end are welded in eluriate and connect on leg outer sleeve with external source.
Eluriate the lowermost end that leg overall structure is connected to crystallizer.
Leg stepped diversion cylinder is eluriated at 2~5 grades.
The innovation of the utility model is to have done innovative design to the structure for eluriating leg, will eluriate leg and be designed as multistage
Floatation structure makes to enter the magma for eluriating leg since the difference of grain size (weight) realizes classification, and the maximum particle of crystal grain is fallen
Enter to eluriate the least significant end of leg, the smallest crystal grain is eluriating the uppermost of leg, or even comes back to crystallizer main body；Meanwhile it washing in a pan
The bottom for washing leg increases one clean water, enters system by the water supplement port of inlet pipeline, to the crystal grain of continuous flotation disturbance
It is washed, realizes the grading discharge of high-cleanness, high crystal grain.Crystal send to centrifuge and is separated by solid-liquid separation after the discharging of respective level,
Crystallization is taken out, residue mother liquor returns again to crystal system.
In contrast to former DTB crystallization apparatus, new equipment has carried out reformed AHP, specific innovation structure to leg is eluriated are as follows:
Magma enter 11 eluriate legs, the elutriations leg include 15 elutriation leg stepped diversion cylinders, 21 bubble traps, 10 big
Burl crystalline substance discharge port, 9 middle rank crystallization discharge ports, 8 fine grain discharge ports, 16 water supplement ports composition；The multi-stage circulating structure it is every
Level-one is made of stepped diversion cylinder 14 and bubble trap 21, and stepped diversion cylinder and bubble trap are respectively welded on and eluriate outside leg
On sleeve, magma is under the action of multi-stage circulating structure, since the inside and outside density variation of stepped diversion cylinder realizes circulation；It is described big
Grain crystalline discharge port 10, middle rank crystallization discharge port 9, fine grain discharge port 8 in the medium position of respective guide shell, are welded in respectively
On outer sleeve.Since size, that is, weight differential of crystal realizes that different crystal is recycled in different levels, during circulation, no
Crystal with granular size is in the discharge hole for discharge of respective level, wherein bulky grain crystal, by 10 large particle crystal discharge ports,
Intermediate crystal crystallizes discharge port by 9 middle ranks, and fine grain realizes grading discharge by 8 fine grain discharge ports；The 16 moisturizing mouth structure
For one end of inlet pipeline, positioned at the underface of afterbody stepped diversion cylinder, the other end be welded in eluriate on leg outer sleeve with
External source connection plays the role of crystal washing；The lowermost end eluriated leg overall structure and be connected to 1 crystallizer.
By taking ammonium sulfate crystallization process as an example, material liquid is fed by 6 charge pipes, by 4 external circulation line connected to it
It is heated into 5 heaters, the material after heating enters in 1 crystallizer.Feed liquid in crystallizer, in 12 blenders, 13 agitating paddles
Under the action of, it is circulated along the circulation canal that 14 guide shells are constituted.Evaporation is crystallized, boiling liquid level is to generate satiety
With the region of degree.By evaporation, become the crystal contact in oversaturated solution and crystallizer, partial crystallization and crystalline growth.It is clear from 3
Clear area's discharge contains the circulation fluid of a small amount of fine grain, send through 4 external circulation lines to 5 heaters, after heating for dissolving, returns to 1 crystallizer,
To form circulation.The discharge port that product magma eluriates leg from 11 takes out.
Advantages of the present invention:
1. eluriating leg structure in contrast to former DTB device and increasing multistage floatation structure, classifying screen effectively can be carried out to crystallization
Choosing discharges again, realizes accurate screening function.
2. eluriating leg bottom increases feed water flow stock, washing effect is played, improves the cleanliness of crystal to improve product
Quality.
Detailed description of the invention
Fig. 1-the utility model ammonium sulphate crystallizer and carrying structure drawing of device；
Fig. 2-the utility model eluriates leg structure partial enlarged drawing；
Wherein:
1- crystallizer；2- steam outlet pipe；3- settling section；4- outer circulation circuit；5- heater；6- feed pipe；7- circulation
Pump；8- fine grain discharge port；9- middle rank crystallizes discharge port；10- large particle crystal discharge port；11- eluriates leg；12- blender；13‐
Agitating paddle；14- stepped diversion cylinder；15- eluriates leg stepped diversion cylinder；16- water supplement port；17- visor；18- valve；19- condenser；
20- lime set tank；21- bubble trap.
Specific embodiment
It is described in detail with reference to the accompanying drawing: as shown in Figure 1, 2:
Material liquid from feed pipe 6, after heated device 5 heats, into crystallizer 1.Feed liquid in crystallizer is being stirred
Under the action of mixing machine 12 and agitating paddle 13, along the circulation canal recycle stream of stepped diversion cylinder 14 and the composition of bubble trap 21
It is dynamic.Evaporation is crystallized, boiling liquid level is the region for generating degree of supersaturation.By evaporation, become oversaturated solution and knot
Crystal contact in brilliant device, partial crystallization and crystalline growth.The discharge of settling section 3 contains the circulation fluid of a small amount of fine grain, through external circulation line
4 send to heater 5, after heating for dissolving, return in crystallizer 1.Product magma takes out from leg 11 is eluriated.It is multistage floating for eluriating leg 11
Structure is selected, makes to enter the magma for eluriating leg since the difference of grain size (weight) realizes classification, the maximum particle of crystal grain is fallen into
The least significant end of leg is eluriated, the smallest crystal grain is eluriating the uppermost of leg, or even comes back to crystallizer main body；Meanwhile it eluriating
The bottom of leg increases one clean water by the water supplement port 16 of inlet pipeline, washs to the crystal grain of continuous flotation disturbance,
Realize the grading discharge of high-cleanness, high crystal grain, wherein bulky grain crystal passes through 10 large particle crystal discharge ports, and intermediate crystal passes through 9
Middle rank crystallization discharge port, fine grain realize grading discharge by 8 fine grain discharge ports.Crystal is sent after the discharging of respective level to centrifugation
Machine is separated by solid-liquid separation, and takes out crystallization, and residue mother liquor returns again to crystal system.
Typical example:
Production sleeve diameter is 600mm, and the DTB crystallizer 1 of high 1600mm is suitable for other sizes of standard configuration with attached drawing 1
The ancillary equipment of conjunction.Crystallizer as shown in Figure 2 is eluriated into leg 11 and is designed as 3 grades of flotation, carries out ammonium sulfate crystallization reaction.It eluriates
15 diameter dimension of stepped diversion cylinder of leg is 200mm, and every layer of sleeve height is 200mm, and 21 vertical height of bubble trap is
50mm, the height of every grade of flotation level are 250mm.Stepped diversion cylinder 15 and bubble trap 21, which are respectively welded, to be connected to outside
On sleeve.Large particle crystal discharge port 10, middle rank crystallization discharge port 9, fine grain discharge port 8 are respectively as shown in fig. 1 in each self-conductance
The medium position of flow cartridge, is welded on outer sleeve.It samples and measures from crystallizer in experimentation, the granularity model of ammonium sulfate crystallization
It encloses for 0~2.00mm.When different size of ammonium sulfate crystallization, which enters, eluriates leg, by flotation step by step, biggish crystalline particle
It is 1.5mm~2.0mm size in the bottom diameter for eluriating leg, is taken out from 10 large particle crystal discharge ports, diameter 1.0mm~
The crystal of 1.5mm falls into middle layer, is taken out by 9 middle rank crystallization discharge ports, crystal of the diameter less than 1.0mm is eluriating leg most
Upper layer flotation is taken out by 8 fine grain discharge ports.The magma to discharge step by step passes through fine grain discharge port 8, middle rank crystallization discharge port respectively
9, after 10 grading discharge of large particle crystal discharge port to centrifuge separation, Lens capsule data as above are obtained.From the reality
Data are tested it is found that the ammonium sulphate crystallizer and carrying with crystal size sizing screening function that the utility model institute's innovative design goes out can be with
Realize that crystal discharges by grading.One end that 16 structure of water supplement port is inlet pipeline, inlet pipeline diameter 20mm, moisturizing are set
Mouthful nozzle diameter is 25mm, positioned at the underface of afterbody stepped diversion cylinder, the other end be welded in eluriate on leg outer sleeve with
External source connection.This experiment does comparative test, experiment pair into clear water and no flow condition by the water supplement port 16 of inlet pipeline
Having compared has ejected wash water and the coloration without crystal under the conditions of ejected wash water, the results show that the sulfuric acid produced when without supplement ejected wash water
Crystalline ammonium is generally partially yellow, and whiter from the ammonium sulfate crystallization color that leg bottom water inlet addition clean water produces is eluriated.
By the ammonium sulfate crystallization device of the utility model, ammonia sulfate crystal sizing screening production function, the dress are realized
It sets to solve and falls into the crystal particles for eluriating leg and can not be evenly distributed state, complete crystal merely with elutriation liquid stream and divide again
Grade, it is difficult to ensure that the shortcomings that product grading Spreading requirements.In addition to that can press Grained Requirements grading discharge, the supplement of clean water is increased
The clear function of crystal keeps the cleaning of the crystal of production with a higher standard, and quality is more excellent.
Example described above is only the preferred embodiment for absolutely proving the present invention and being lifted, and protection scope of the present invention is not
It is limited to this.Those skilled in the art's made equivalent substitute or transformation on the basis of the present invention, in guarantor of the invention
Within the scope of shield.Protection scope of the present invention is subject to claims.
Claims (3)
1. a kind of ammonium sulphate crystallizer and carrying device with crystal screening function, it is characterized in that eluriating leg is multistage floatation structure；It is floating
Selecting structure includes stepped diversion cylinder, bubble trap, crystallization discharge port and water supplement port composition；Each grade of classification guide shell and bubble
Collector composition, large particle crystal discharge port, middle rank crystallize discharge port, fine grain discharge port following in respective stepped diversion cylinder respectively
The medium position of ring grade outer sleeve；The water supplement port of inlet pipeline, positioned at the underface of afterbody stepped diversion cylinder；It is whole to eluriate leg
Body structure is connected to the lowermost end of crystallizer.
2. device as described in claim 1, it is characterized in that inlet pipeline is arranged in the bottom for eluriating leg.
3. device as described in claim 1, it is characterized in that eluriating leg stepped diversion cylinder at 2~5 grades.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820053543.3U CN208541829U (en) | 2018-01-12 | 2018-01-12 | A kind of ammonium sulphate crystallizer and carrying device with crystal size sizing screening function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820053543.3U CN208541829U (en) | 2018-01-12 | 2018-01-12 | A kind of ammonium sulphate crystallizer and carrying device with crystal size sizing screening function |
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| Publication Number | Publication Date |
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| CN208541829U true CN208541829U (en) | 2019-02-26 |
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| CN201820053543.3U Expired - Fee Related CN208541829U (en) | 2018-01-12 | 2018-01-12 | A kind of ammonium sulphate crystallizer and carrying device with crystal size sizing screening function |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111804265A (en) * | 2020-08-11 | 2020-10-23 | 中南大学 | Continuous crystallization transformation equipment and method for elemental sulfur in high-sulfur slag in zinc smelting |
| CN111874870A (en) * | 2020-08-11 | 2020-11-03 | 中南大学 | Device and method for regulating and controlling crystallization transformation of element sulfur in high-sulfur slag in zinc smelting |
| CN114832424A (en) * | 2022-03-31 | 2022-08-02 | 国家能源集团宁夏煤业有限责任公司 | Crystallization equipment, application thereof and method for preparing large-particle ammonium sulfate crystals |
-
2018
- 2018-01-12 CN CN201820053543.3U patent/CN208541829U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111804265A (en) * | 2020-08-11 | 2020-10-23 | 中南大学 | Continuous crystallization transformation equipment and method for elemental sulfur in high-sulfur slag in zinc smelting |
| CN111874870A (en) * | 2020-08-11 | 2020-11-03 | 中南大学 | Device and method for regulating and controlling crystallization transformation of element sulfur in high-sulfur slag in zinc smelting |
| CN111874870B (en) * | 2020-08-11 | 2023-08-18 | 中南大学 | Device and method for regulating and controlling element sulfur crystallization transformation in zinc smelting high-sulfur slag |
| CN114832424A (en) * | 2022-03-31 | 2022-08-02 | 国家能源集团宁夏煤业有限责任公司 | Crystallization equipment, application thereof and method for preparing large-particle ammonium sulfate crystals |
| CN114832424B (en) * | 2022-03-31 | 2023-07-25 | 国家能源集团宁夏煤业有限责任公司 | Crystallization equipment and application thereof, and method for preparing large-particle ammonium sulfate crystals |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20190226 Termination date: 20220112 |