CN206642403U - A kind of continuous production Two-way Cycle freezing and crystallizing device - Google Patents
A kind of continuous production Two-way Cycle freezing and crystallizing device Download PDFInfo
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- CN206642403U CN206642403U CN201720385155.0U CN201720385155U CN206642403U CN 206642403 U CN206642403 U CN 206642403U CN 201720385155 U CN201720385155 U CN 201720385155U CN 206642403 U CN206642403 U CN 206642403U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
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Abstract
The utility model discloses a kind of continuous production Two-way Cycle freezing and crystallizing device.The continuous production Two-way Cycle freezing and crystallizing device that the utility model is related to, including crystallisation chamber, heat exchanger, Matter Transfer pipe, refrigerant circulation pipe, discharge duct.Heat exchanger is setting up and down with crystallisation chamber, and discharge duct is placed in crystallisation chamber bottom, and heat exchanger, crystallisation chamber and discharge duct are located on same axis, and Matter Transfer pipe connection crystallisation chamber and heat exchanger, refrigerant circulation pipe connect with heat exchanger.Suit truncated cone-shaped guide shell in cylinder in the middle part of crystallisation chamber, crystallisation chamber inside guide shell with communicating.Heat exchanger lower end is provided with trumpet type discharging opening, inserts in the guide shell in the middle part of crystallisation chamber in cylinder.The problem of the utility model can realize freezing and crystallizing continuous production, heat exchange efficiency and high cold energy utilization rate, and can effectively solve the blocking of Crystallizer tube Louis, and the emptying cleaning frequency is long, simple operation is stable, improves production efficiency and product quality.
Description
Technical field
It the utility model is related to freezing and crystallizing device, and in particular to one kind can in the industries such as chlor-alkali, salt manufacturing, wastewater treatment
To realize chemical products quantity-produced Two-way Cycle freezing and crystallizing device.
Background technology
Freezing and crystallizing technology be using soluble compound solubility is greatly reduced under cryogenic the characteristics of, from solution
The technology of middle separation and Extraction target product, there is the characteristics of equipment manufacturing cost is cheap, and energy consumption is relatively low, easy to operate, it is wide at present
The fields such as the general Industrial Wastewater Treatment distributed applied to chlor-alkali, salinization and volatile, foul smelling, dangerous gas.
Existing freezing and crystallizing process units, batch (-type) and continous way can be divided into according to mode of operation.Traditional batch (-type)
Freezing and crystallizing equipment, mainly it is made up of freezing heat exchanger, settler and equipment for separating liquid from solid.Feed liquid during operation after precooling enters
Heat exchanger is freezed, crystallization precipitation product after target temperature is chilled to, is transferred to settler and carries out crystal granula sedimentation, lead to again after sedimentation completely
Cross separation of solid and liquid and obtain target product and separation mother liquor.Because using Batch Process, discharge is not smooth, and precipitation crystal easily blocks cold
Freeze heat exchanger and pipeline, cause brush tank frequent, the production cycle shortens, and loss of refrigeration capacity is serious.In addition, it is more using settler quantity,
Floor space is big, and subject matter existing for interval freezing and crystallizing equipment.
And the continuous freezing and crystallizing equipment of common outer circulation, although heat exchanger and settler are integrated, reducing
Made moderate progress in floor space and raising production capacity, but outside heat exchanger, the part of unspecial augmentation of heat transfer is set,
Heat transfer efficiency and cooling capacity utilization rate are difficult to improve.In addition, pipeline is long between heat exchanger and crystallisation chamber, also easily analysed on tube wall
Go out crystal, cause Flow of Goods and Materials difficult, once pipeline and heat exchanger local stoppages, it is necessary to which the emptying of whole tank is cleaned, the off-time is grown,
Increase energy consumption and cost.
Utility model content
The utility model is for shortcomings and deficiencies present in existing freezing and crystallizing production equipment, there is provided a kind of continuous production
Two-way Cycle freezing and crystallizing device, bicirculating mode is forced by material and refrigerant, improve crystallizer freezing heat transfer efficiency and refrigerant
Cooling capacity utilization rate, further reduce energy consumption.Improving and optimizating by mold structure simultaneously, solve crystal growth deficiency,
Fine grain entrainment is excessive in overflowing liquid, and the problem of whole tank emptying is cleaned, the cycle that stops production is long is needed after heat exchange manifold blocking, effectively
Improve the production efficiency and product quality of continuous freezing and crystallizing.
The continuous production Two-way Cycle freezing and crystallizing device that the utility model is related to, including crystallisation chamber, heat exchanger, Matter Transfer
Pipe, refrigerant circulation pipe, discharge duct.Heat exchanger is setting up and down with crystallisation chamber, and discharge duct is placed in crystallisation chamber bottom, heat exchanger, crystallization
Room and discharge duct are located on same axis, and Matter Transfer pipe connection crystallisation chamber and heat exchanger, refrigerant circulation pipe connect with heat exchanger
It is logical.
The crystallisation chamber is tubular structure, and middle part is cylinder, up and down respectively short cone.Cylinder in the middle part of crystallisation chamber
Interior suit truncated cone-shaped guide shell, crystallisation chamber inside guide shell with communicating.Guide shell top edge engages with cylinder top edge, cylinder
Outer rim is provided with exhaust outlet and overfall at the top of body.
The discharge duct is the pipe for being arranged on the short cone lower end in crystallisation chamber bottom, discharge duct be provided with slurry outlet,
Eluriate mouth and evacuation port.
The heat exchanger is cylinder-like structure, and cylinder lower end is connected with the short cone in crystallisation chamber top, exchanger base
Trumpet type discharging opening is set, inserted in the truncated cone-shaped guide shell in the middle part of crystallisation chamber in cylinder.
The Matter Transfer pipe is placed in the side of crystallisation chamber and heat exchanger, and Matter Transfer pipe upper orifice and heat exchanger top are straight
Connect connected, lower nozzle is connected with the conical sidewall of crystallisation chamber bottom.Straight length and heat exchanger and crystallisation chamber in the middle part of Matter Transfer pipe
Axis parallel, charging aperture is set on the straight length of middle part, the bottom of middle part straight length is equipped with Matter Transfer pump.
The refrigerant circulation pipe is placed in the side of heat exchanger, and upper lower nozzle connects with heat exchanger side wall upper and lower side respectively.On
Refrigerant import and refrigerant exit are respectively equipped with outside lower transverse tubule, refrigerant circulation bottom of the tube is equipped with refrigerant circulation pump.Refrigerant circulation pipe
The outside of middle straight section sets steam jacket, and steam jacket upper end is provided with steam inlet and condensed water discharge outlet.
During the continuous production Two-way Cycle freezing and crystallizing device equipment operation that the utility model is related to, material to be frozen follows from material
Material is delivered into heat exchanger, thing to be frozen by the charging aperture input on endless tube, Matter Transfer pump by the way of jacking side goes out
Material carries out heat exchange in heat exchanger with low temperature refrigerant.The refrigerant import that described low temperature refrigerant passes through refrigerant circulation pipe top
Into heat exchanger, refrigerant circulation pump carries out forced circulation by the way of jacking side goes out to refrigerant, and the part refrigerant after heat exchange leads to
The refrigerant exit discharge for crossing the setting of refrigerant circulation pipe bottom returns to freezing unit.Material passes through the loudspeaker below heat exchanger after freezing
Type discharging opening enters in crystallisation chamber, and the crystal grain of precipitation is grown into during downward sedimentation, and clear liquid, which is crossed in crystallisation chamber, pacifies
It will flow up after the truncated cone-shaped guide shell lower edge of dress and flowed out from the overfall on crystallisation chamber top.A part contains crystal grain
Slurry sucks material circulation pipe by the circulation port of the short circular cone body sidewall in crystallisation chamber bottom, enters as crystal seed with the feed liquid newly entered
Row mixing.Most of crystallization is enriched with and entered in discharge duct in crystallisation chamber bottom, is discharged by slurry outlet, is set on discharge duct
Putting elutriation mouth can screen to the crystallization particle diameter for discharging material.When heat exchange manifold blocks, steam is passed through refrigerant
The steam inlet on circulation pipe external steam chuck top, condensed water flows out from the condensation-water drain of bottom, while is followed using refrigerant
Ring pump heat exchanging device takes local heating, the crystal of blocking is dissolved again to dredge pipeline.
The continuous production Two-way Cycle freezing and crystallizing device that the utility model is related to compared with freezing and crystallizing equipment compared to having
Following advantage：
1) material and refrigerant progress forced circulation in heat exchanging device are distinguished using two sets of circulating pumps, effectively reduces resistance of heat transfer
Power, the utilization rate of heat transfer efficiency and refrigerant cold is improved, reduce freezing unit load and energy consumption.
2) heat exchanger is placed directly within the top of crystallisation chamber by structure optimization, the feed liquid after cooling can quickly enter crystallization
Room, reduce length of pipe and resistance, reduce the probability that crystallization separates out on heat exchanger tube, circulation tube wall, extension device operation
Cycle；Truncated cone-shaped guide shell in crystallisation chamber can make crystallization having time fully grow and be separated with overflow clear liquid, avoid overflow
Carry substantial amounts of fine grain in liquid secretly, cause follow-up separation of solid and liquid difficult, product quality and yield decline.
3) steam jacket is provided with outside refrigerant circulation pipe, coordinates refrigerant circulation pump, can quickly realize that local heating is dredged
Heat exchange manifold, effectively solve to need overall emptying cleaning, off-time length, energy loss after existing equipment heat exchange manifold blocks
The problem of big.
Brief description of the drawings
Fig. 1 is a kind of structural representation of continuous production Two-way Cycle freezing and crystallizing device.
Description of symbols in figure：
1- crystallisation chamber 2- discharge ducts
3- Matter Transfer pump 4- Matter Transfer pipes
5- refrigerant circulation pipe 6- heat exchangers
7-steam jacket, 8-refrigerant circulation pump
9-trumpet type, 10-guide shell of discharging opening
11-exhaust outlet
Embodiment
Nitre technique processed is continuously freezed with reference to Fig. 1 of display Two-way Cycle freezing and crystallizing device basic structure and for high salt made from earth containing a comparatively high percentage of sodium chloride water
Embodiment, the technical solution of the utility model is further illustrated.
The continuous production Two-way Cycle freezing and crystallizing device that the utility model is related to, including crystallisation chamber 1, heat exchanger 6, Matter Transfer
Pipe 4, refrigerant circulation pipe 5, discharge duct 2.Heat exchanger 6 and crystallisation chamber 1 are setting up and down, and discharge duct 2 is placed in the bottom of crystallisation chamber 1, heat exchange
Device 6, crystallisation chamber 1 and discharge duct 2 are located on same axis, and Matter Transfer pipe 4 connects crystallisation chamber 1 and heat exchanger 6, refrigerant circulation
Pipe 5 connects with heat exchanger 6.
The crystallisation chamber 1 is tubular structure, and middle part is cylinder, up and down respectively short cone.The middle part cylinder of crystallisation chamber 1
Suit truncated cone-shaped guide shell 10 in vivo, crystallisation chamber 1 inside guide shell 10 with communicating.The top edge of guide shell 10 and cylinder top edge
Engagement, cylinder top outer rim are provided with exhaust outlet 11 and are provided with overfall.
The discharge duct 2 is the pipe for being arranged on the short cone lower end in the bottom of crystallisation chamber 1, and discharge duct 2 goes out provided with slurry
Mouth, rinse mouth and evacuation port.
The heat exchanger 6 is cylinder-like structure, and cylinder lower end is connected with the short cone in the top of crystallisation chamber 1, heat exchanger bottom
Portion sets trumpet type discharging opening 9, inserts 10 in the truncated cone-shaped guide shell in the middle part cylinder of crystallisation chamber 1.
The Matter Transfer pipe 4 is placed in the side of crystallisation chamber 1 and heat exchanger 6, the upper orifice of Matter Transfer pipe 4 and heat exchanger 6
Top is joined directly together, and lower nozzle is connected with the conical sidewall of the bottom of crystallisation chamber 1.The middle part straight length of Matter Transfer pipe 4 and heat exchanger 6
With the axis parallel of crystallisation chamber 1, charging aperture is set on the straight length of middle part, the bottom of middle part straight length is equipped with Matter Transfer pump 3.
The refrigerant circulation pipe 5 is placed in the side of heat exchanger 1, and upper lower nozzle connects with the side wall upper and lower side of heat exchanger 1 respectively,
Refrigerant import is provided with outside the transverse tube of upper end, refrigerant exit is provided with outside the transverse tube of lower end.The bottom of refrigerant circulation pipe 5 is equipped with refrigerant circulation
Pump 8, the outside of 5 middle straight section of refrigerant circulation pipe set steam jacket 7, and upper end is provided with steam inlet, and lower end is arranged provided with condensed water
Outlet.
The continuous production Two-way Cycle freezing and crystallizing device that the utility model is related to is applied to high salt made from earth containing a comparatively high percentage of sodium chloride water continuously freezing nitre work processed
The specific operation process of skill is as follows：The high salt made from earth containing a comparatively high percentage of sodium chloride water of 25 DEG C of sodium sulphate contents 20% is entered by the charging aperture on Matter Transfer pipe 4
Enter Matter Transfer pipe, contacted in Matter Transfer pipe 4 with a large amount of low-temperature circulating feed liquids, under the promotion of Matter Transfer pump 3 together
Into the top of heat exchanger 6.- 10 DEG C of calcium chloride brines from freezing unit are entered by the refrigerant import on the top of refrigerant circulation pipe 5
Enter refrigerant circulation pipe, high salt made from earth containing a comparatively high percentage of sodium chloride water is carried out in the heat exchanger 1 being cooled to -1 DEG C under the promotion of refrigerant circulation pump 8, part -5
DEG C calcium chloride brine return to freezing unit from the refrigerant exit of the bottom of refrigerant circulation pipe 5.High salt made from earth containing a comparatively high percentage of sodium chloride water after cooling passes through loudspeaker
Type discharging opening 9 enters in crystallisation chamber 1, and the saltcake crystal grain of precipitation is settled downwards, and clear liquid is realized in the lower edge of round platform guide shell 10
With the separation of saltcake slurry.Part sodium chloride crystal sucks material circulation pipe 4 with slurry and mixed again with raw feed liquid as crystal seed
Carry out freezing crystallization.Remaining sodium chloride crystal is enriched with and is deposited in discharge duct 2 in the bottom of crystallisation chamber 1, the slurry from discharge duct 2
Outlet is expelled to solid-liquid separating equipment and obtains saltcake；Sodium sulfate concentration 4% in clear liquid, pass through the overfall on the top of crystallisation chamber 1
It is expelled to next process or part returns to the elutriation mouth set on discharge duct 2 and the crystallization wherein deposited is screened.
Claims (4)
1. a kind of continuous production Two-way Cycle freezing and crystallizing device, it is characterised in that including crystallisation chamber, heat exchanger, Matter Transfer pipe, cold
Matchmaker's circulation pipe and discharge duct, heat exchanger is setting up and down with crystallisation chamber, and discharge duct is placed in crystallisation chamber bottom, heat exchanger, crystallisation chamber and
Discharge duct is located on same axis, and Matter Transfer pipe connection crystallisation chamber and heat exchanger, refrigerant circulation pipe connect with heat exchanger；
The crystallisation chamber is cylinder-like structure, and middle part is cylinder, up and down respectively short cone；In the middle part of crystallisation chamber in cylinder
Truncated cone-shaped guide shell is set with, crystallisation chamber inside guide shell with communicating；Outer rim is provided with exhaust outlet and overfall at the top of cylinder；
The discharge duct is round tube shape structure, and lower end is short cone, and slurry outlet is housed on discharge duct, eluriates mouth and emptying
Mouthful；
The heat exchanger is cylinder-like structure, and cylinder lower end is connected with the short cone in crystallisation chamber top, and exchanger base is set
Trumpet type discharging opening, insert in the truncated cone-shaped guide shell in the middle part of crystallisation chamber in cylinder.
2. continuous production Two-way Cycle freezing and crystallizing device according to claim 1, it is characterised in that the Matter Transfer pipe is put
In crystallisation chamber and the side of heat exchanger, Matter Transfer pipe upper orifice at the top of heat exchanger with being joined directly together, under lower nozzle and crystallisation chamber
The conical sidewall in portion communicates；Straight length and heat exchanger and the axis parallel of crystallisation chamber, middle part straight length in the middle part of Matter Transfer pipe
Upper setting charging aperture, the bottom of middle part straight length are equipped with Matter Transfer pump.
3. continuous production Two-way Cycle freezing and crystallizing device according to claim 1, it is characterised in that the refrigerant circulation pipe is put
In the side of heat exchanger, upper lower nozzle is connected with heat exchanger side wall upper and lower side respectively, and refrigerant import is set respectively on upper lower transverse tubule
And refrigerant exit, refrigerant circulation bottom of the tube are equipped with refrigerant circulation pump.
4. continuous production Two-way Cycle freezing and crystallizing device according to claim 3, it is characterised in that in the refrigerant circulation pipe
Between the outside of straight section steam jacket is set, steam jacket upper and lower side sets steam inlet and condensation-water drain respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720385155.0U CN206642403U (en) | 2017-04-13 | 2017-04-13 | A kind of continuous production Two-way Cycle freezing and crystallizing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720385155.0U CN206642403U (en) | 2017-04-13 | 2017-04-13 | A kind of continuous production Two-way Cycle freezing and crystallizing device |
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| CN206642403U true CN206642403U (en) | 2017-11-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106823445A (en) * | 2017-04-13 | 2017-06-13 | 国家海洋局天津海水淡化与综合利用研究所 | A kind of continuous production Two-way Cycle freezing and crystallizing device |
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2017
- 2017-04-13 CN CN201720385155.0U patent/CN206642403U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106823445A (en) * | 2017-04-13 | 2017-06-13 | 国家海洋局天津海水淡化与综合利用研究所 | A kind of continuous production Two-way Cycle freezing and crystallizing device |
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