CN206666417U - A kind of continuous oscillation stream membrane crystallization device of antierythrite - Google Patents
A kind of continuous oscillation stream membrane crystallization device of antierythrite Download PDFInfo
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- CN206666417U CN206666417U CN201720396620.0U CN201720396620U CN206666417U CN 206666417 U CN206666417 U CN 206666417U CN 201720396620 U CN201720396620 U CN 201720396620U CN 206666417 U CN206666417 U CN 206666417U
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- membrane
- tube side
- membrane module
- antierythrite
- tube
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Abstract
The utility model is specifically related to a kind of continuous oscillation stream membrane crystallization device of antierythrite, specifically includes the pipeline connection between crystalline mother solution storage tank, heat exchanger, filter, membrane module, plunger pump, crystallizer, condenser pipe, vavuum pump and the said equipment.The utility model continuous oscillation stream membrane crystallization device is concentrated by evaporation erythritol crystallization mother liquor using membrane distillation, and in membrane module each tubular type membrane tube along the central axial setting circular baffle plate in pipe, by circular baffle plate along the central axial reciprocating vibration in tubular type membrane tube, the flow of fluid on film surface and microcosmic admixture are significantly improved, the concentration polarization phenomenon or film surface crystal that effectively solution membrane crystallization process easily occurs easily deposit the technical barrier of precipitation.The utility model membrane crystallization device also has the advantages that continuous production, can effectively reduce antierythrite crystallization production cost.
Description
Technical field
The utility model belongs to multi-sugar alcohol production technical field, and in particular to a kind of continuous oscillation stream film of antierythrite
Crystallization apparatus.
Background technology
Antierythrite is a kind of natural saccharic and Functional sweetening agents, is widely used in developing health food low in calories, glycosuria
The functional food or beverage, children special-purpose of disease and the crowd such as glucose uncomfortable diseases clean the teeth articles for use etc., and market prospects are very good.
Antierythrite industrial production mainly uses fermentation method, is first concentrated by evaporation after the purified processing of zymotic fluid, then cool down knot
The obtained erythritol crystal of crystalline substance.Because zymotic fluid mesoerythrit concentration is relatively low, operation temperature is higher when atmospheric evaporation concentrates, water
Point evaporation capacity is larger, and energy consumption is higher；And though use decompression or multiple-effect evaporation can be energy-saving, but equipment and technique can be increased
Complexity.
Membrane crystallization is a kind of new separating and purifying technology for coupling membrane distillation and crystallizing, and its operating principle is to apply membrane distillation
Technology removes the solvent in crystalline mother solution, makes up to hypersaturated state and separates out lolute crystallization.Compared to the red moss of routine
Sugar alcohol zymotic fluid evaporative crystallization or crystallisation by cooling process after being first concentrated by evaporation, membrane crystallization need not be heated to zymotic fluid to seethe with excitement, only
The appropriate temperature difference in film both sides need to be maintained, so that it may so that the water in zymotic fluid passes through fenestra as water vapor, so as to realize
Zymotic fluid concentrates and oversaturated purpose.The crystalline mother solution surface of evaporation and crystal process and mother liquor body region (or cooling is tied
Heat-transfer surface and mother liquor body region during crystalline substance) temperature difference be present, this to deposit in evaporative crystallization (or crystallisation by cooling) process mother liquor
In thermograde, degree of supersaturation heterogeneity, the crystal size heterogeneity of growth.And the crystallization of membrane crystallization process is with solvent concentration
Completed in different device, in the absence of the inhomogenous problem of mother liquor degree of supersaturation.
But membrane crystallization process is when relying on membrane distillation concentration crystalline mother solution, the concentration of crystalline mother solution typically require it is close or
Slightly above its saturation solubility, now solution concentration is general higher, and concentration polarization phenomenon is in membrane crystallization existing for membrane separating process
Process is particularly acute, it is easy to is separated out crystal on the surface of film, is remarkably decreased membrane flux.Moreover, membrane crystallization handles some lifes
During thing zymotic fluid, gel polarization phenomenon is also apparent from.Concentration polarization or gel polarization phenomenon and film surface in membrane separating process
The boundary layer of fluid is in close relations, improves the microcosmic admixture of fluid on film surface, reduces its boundary layer thickness, be effectively to solve
The effective means of concentration polarization or gel polarization phenomenon in membrane separating process.
The content of the invention
The utility model is intended to overcome above-mentioned technological deficiency, there is provided a kind of continuous oscillation stream membrane crystallization dress of antierythrite
Put, can effectively alleviate the concentration polarization during antierythrite membrane crystallization or gel polarization phenomenon.
To achieve the above object, the continuous oscillation stream membrane crystallization device of the utility model antierythrite, specifically includes crystallization
Mother liquor holding tank, heat exchanger, filter, membrane module, plunger pump, crystallizer, condenser pipe, vavuum pump；The heat exchanger is set
There are tube side import, tube side outlet, shell side import and shell-side outlet, the membrane module is provided with tube side import, tube side outlet (52)
With shell-side outlet, the crystallizer is provided with the outlet of lower floor's magma and exported with supernatant liquor overflow, and the condenser pipe is provided with pipe
Journey import, tube side outlet, shell side import and shell-side outlet；Between heat exchanger tube side outlet and filter, filter with
Between membrane module tube side import, between the outlet of membrane module tube side and crystallizer, membrane module shell-side outlet and condenser pipe tube side import
Between, condenser pipe tube side outlet vavuum pump between connected respectively by pipeline, the crystalline mother solution storage tank and heat exchanger tube
Between journey import, between crystallizer supernatant liquor overflow outlet and heat exchanger tube side import respectively by being provided with the pipeline of pump
Connection；
Described membrane module is the hollow tubular membrane component of hydrophobicity, and each tubular type membrane tube is along the center in pipe in membrane module
An axially arranged damper rod, since damper rod is close to one end of membrane module tube side import, circular gear is set evenly and at intervals
Plate, damper rod pass perpendicularly through the circle center of each circular baffle plate, close to one end of membrane module tube side outlet by all damper rods
It is vertically fixed on a disk, the disk is connected by plunger with plunger pump, enables damper rod and disk along tubular type membrane tube
Interior central axial reciprocating vibration, its frequency of oscillation are 1 ~ 10Hz, and amplitude is 1 ~ 5cm；
The diameter of described circular baffle plate is 0.3 ~ 0.8 times of single tubular membrane pipe diameter in membrane module, every damper rod
The spacing of upper two neighboring circular baffle plate is 1.0 ~ 10 times of single tubular membrane pipe diameter in membrane module；
The length of described damper rod is 0.6 ~ 0.8 times of single tubular membrane length of tube in membrane module.
Described crystalline mother solution storage tank is the jacketed storage tank of controllable temperature.
Described heat exchanger is tubular heat exchanger.
Described filter is piping filter.
Described crystallizer is fluidized-bed crystallizer.
Due to there is following good effect compared with prior art using above-mentioned technical proposal, the utility model：
(1) the continuous oscillation stream membrane crystallization device of the antierythrite involved by the utility model, in the axial direction of tubular type membrane tube
The flow of fluid on film surface and microcosmic admixture are effectively improved there is provided baffle plate, and by the vibration of baffle plate, solves film
Incident concentration polarization phenomenon or gel polarization phenomenon in crystallization process and cause crystal film surface deposition separate out technology
Problem.
(2) the continuous oscillation stream membrane crystallization device of the antierythrite involved by the utility model, using hollow tubular membrane group
Part condensing crystallizing mother liquor, the water in mother liquor can be just set to pass through film as water vapor without crystalline mother solution is heated to boiling
Hole and reach hypersaturated state, effectively reduce antierythrite evaporative crystallization or cooling and crystallizing process operation energy consumption.
(3) the continuous oscillation stream membrane crystallization device of the antierythrite involved by the utility model, the supersaturation of crystallization operation
Degree produces in membrane module, and crystal growth is located at fluidized-bed crystallizer, crystal fluidized suspension in circulation crystallization mother liquor, for crystalline substance
Body growth provides preferable condition, and the existing grading of fluidized-bed crystallizer acts on, and turn avoid and adds seeding, can
Grow the big and uniform crystal of granularity.
Brief description of the drawings
Fig. 1 is the utility model schematic diagram.
Embodiment
Explanation that the utility model is further explained below in conjunction with the accompanying drawings, not to the limitation of its protection domain.
As shown in figure 1, the continuous oscillation stream membrane crystallization device of the antierythrite involved by the utility model, specifically includes knot
Brilliant mother liquor holding tank 1, heat exchanger 3, filter 4, membrane module 5, plunger pump 6, crystallizer 7, condenser pipe 8, vavuum pump 9；The heat
Exchanger 3 is provided with tube side import 31, tube side outlet 32, shell side import 33 and shell-side outlet 34, the membrane module 5 and is provided with pipe
Journey import 51, tube side outlet 52 and shell-side outlet 53, the crystallizer 7 are provided with lower floor's magma outlet 71 and supernatant liquor overflow
Outlet 72, the condenser pipe 8 are provided with tube side import 81, tube side outlet 82, shell side import 83 and shell-side outlet 84；The heat is handed over
Between the tube side of parallel operation 3 outlet 32 and filter 4, between filter 4 and the tube side import 51 of membrane module 5, the tube side of membrane module 5 outlet 52
Between crystallizer 7, between the shell-side outlet 53 of membrane module 5 and the tube side import 81 of condenser pipe 8, the tube side of condenser pipe 8 outlet 82 with it is true
Connected respectively by pipeline between empty pump, between the tube side import 31 of crystalline mother solution storage tank 1 and heat exchanger 3, on crystallizer 7
Connected respectively by being provided with the pipeline of pump 2 between layer clear liquid overflow outlet 72 and the tube side import 31 of heat exchanger 3；
Described membrane module 5 is the hollow tubular membrane component of hydrophobicity, during each tubular type membrane tube is along pipe in membrane module 5
The axially arranged damper rod of the heart, since damper rod is close to one end of the tube side import 51 of membrane module 5, circle is set evenly and at intervals
Shape baffle plate, damper rod pass perpendicularly through the circle center of each circular baffle plate, will own close to one end of the tube side of membrane module 5 outlet 52
Damper rod is vertically fixed on a disk, and the disk is connected by plunger with plunger pump 6, enables damper rod and disk along pipe
Central axial reciprocating vibration in formula membrane tube, its frequency of oscillation are 1 ~ 10Hz, and amplitude is 1 ~ 5cm；
The diameter of described circular baffle plate is 0.3 ~ 0.8 times of single tubular membrane pipe diameter in membrane module, every damper rod
The spacing of upper two neighboring circular baffle plate is 1.0 ~ 10 times of single tubular membrane pipe diameter in membrane module；
The length of described damper rod is 0.6 ~ 0.8 times of single tubular membrane length of tube in membrane module.
Described crystalline mother solution storage tank 1 is the jacketed storage tank of controllable temperature.
Described heat exchanger 3 is tubular heat exchanger.
Described filter 4 is piping filter.
Described crystallizer 7 is fluidized-bed crystallizer.
The continuous oscillation stream membrane crystallization of antierythrite with reference to involved by concrete technology operating condition describes the utility model
Device implementation process is as follows：Water is dissolved in using antierythrite crude product and filters off the solution after solid insoluble again as raw material, is stored in knot
Brilliant mother liquor holding tank 1；The crystalline mother solution in crystalline mother solution storage tank 1 is sent into heat exchanger with pump 2, the heating water of heat exchanger 3 steams
Vapour entrance is 33, is exported as 34, and the crystalline mother solution temperature for maintaining to leave the tube side of heat exchanger 3 outlet 32 is 40 ~ 80 DEG C；Leave heat
The crystalline mother solution of exchanger 3 enters the tube side import 51 of membrane module 5 after piping filter 4 filters out solid insoluble particle,
Water in crystalline mother solution after membrane distillation passes through film in the form of water vapour film opposite side by vavuum pump 9 through membrane module 5
Shell-side outlet 53 is extracted out, then is discharged after the condensation of condenser pipe 8 with aqueous water from 10, and the cooling water inlet of condenser pipe 8 is 84, cooling
Water inlet is 83, and the crystalline mother solution after concentration is admitted to fluidized-bed crystallizer 7 from the tube side outlet 52 of membrane module 5, and crystal is following
Fluidized suspension grows in ring crystalline mother solution, and the crystalline mother solution on the upper strata of crystallizer 7 is sent into heat exchange through clear liquid overflow outlet 72 by pump 2
The tube side import 31 of device 3 carries out interior circulation, and crystalline product is drawn by the bottom magma outlet 71 of crystallizer 7, send to filtering, washing,
Dry, obtain erythritol crystal.
Claims (5)
- A kind of 1. continuous oscillation stream membrane crystallization device of antierythrite, it is characterised in that specifically include crystalline mother solution storage tank (1), Heat exchanger (3), filter (4), membrane module (5), plunger pump (6), crystallizer (7), condenser pipe (8), vavuum pump (9)；It is described Heat exchanger (3) is provided with tube side import (31), tube side outlet (32), shell side import (33) and shell-side outlet (34), the film Component (5) is provided with tube side import (51), tube side outlet (52) and shell-side outlet (53), the crystallizer (7) and is provided with lower floor Magma exports (71) and supernatant liquor overflow outlet (72), and the condenser pipe (8) is provided with tube side import (81), tube side outlet (82), shell side import (83) and shell-side outlet (84)；Heat exchanger (3) tube side is exported between (32) and filter (4), mistake Between filter (4) and membrane module (5) tube side import (51), membrane module (5) tube side outlet (52) and crystallizer (7) between, film group Between part (5) shell-side outlet (53) and condenser pipe (8) tube side import (81), the outlet of condenser pipe (8) tube side (82) and vavuum pump it Between connected respectively by pipeline, between the crystalline mother solution storage tank (1) and heat exchanger (3) tube side import (31), crystallizer (7) Supernatant liquor overflow exports to be connected by being provided with the pipeline of pump (2) respectively between (72) and heat exchanger (3) tube side import (31) Connect；Described membrane module (5) is the hollow tubular membrane component of hydrophobicity, during each tubular type membrane tube is along pipe in membrane module (5) The axially arranged damper rod of the heart, since damper rod is close to one end of membrane module (5) tube side import (51), sets evenly and at intervals Circular baffle plate is put, damper rod passes perpendicularly through the circle center of each circular baffle plate, close to the one of membrane module (5) tube side outlet (52) All damper rods are vertically fixed on a disk by end, and the disk is connected by plunger with plunger pump (6), makes damper rod and circle Disk can be along central axial reciprocating vibration in tubular type membrane tube, and its frequency of oscillation is 1 ~ 10Hz, and amplitude is 1 ~ 5cm；The diameter of described circular baffle plate is 0.3 ~ 0.8 times of single tubular membrane pipe diameter in membrane module, phase on every damper rod The spacing of adjacent two circular baffle plates is 1.0 ~ 10 times of single tubular membrane pipe diameter in membrane module；The length of described damper rod is 0.6 ~ 0.8 times of single tubular membrane length of tube in membrane module.
- 2. the continuous oscillation stream membrane crystallization device of antierythrite according to claim 1, it is characterised in that described crystallization Mother liquor holding tank (1) is the jacketed storage tank of controllable temperature.
- 3. the continuous oscillation stream membrane crystallization device of antierythrite according to claim 1, it is characterised in that described heat friendship Parallel operation (3) is tubular heat exchanger.
- 4. the continuous oscillation stream membrane crystallization device of antierythrite according to claim 1, it is characterised in that described filtering Device (4) is piping filter.
- 5. the continuous oscillation stream membrane crystallization device of antierythrite according to claim 1, it is characterised in that described crystallization Device (7) is fluidized-bed crystallizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720396620.0U CN206666417U (en) | 2017-04-17 | 2017-04-17 | A kind of continuous oscillation stream membrane crystallization device of antierythrite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720396620.0U CN206666417U (en) | 2017-04-17 | 2017-04-17 | A kind of continuous oscillation stream membrane crystallization device of antierythrite |
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| Publication Number | Publication Date |
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| CN206666417U true CN206666417U (en) | 2017-11-24 |
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|---|---|---|---|
| CN201720396620.0U Expired - Fee Related CN206666417U (en) | 2017-04-17 | 2017-04-17 | A kind of continuous oscillation stream membrane crystallization device of antierythrite |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108465264A (en) * | 2018-04-09 | 2018-08-31 | 大连理工大学 | A kind of method that new type of continuous prepares controllable biological molecular crystal |
| CN109794078A (en) * | 2019-03-21 | 2019-05-24 | 大连理工大学 | A kind of method and system of the automatic nucleus screening of membrane interface regulation |
| CN112479820A (en) * | 2020-11-16 | 2021-03-12 | 江苏汉光生物工程有限公司 | Erythritol's continuous oscillation flowing film crystallization device |
| CN113912475A (en) * | 2020-07-08 | 2022-01-11 | 山东福洋生物科技股份有限公司 | Preparation method of erythritol crystals |
-
2017
- 2017-04-17 CN CN201720396620.0U patent/CN206666417U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108465264A (en) * | 2018-04-09 | 2018-08-31 | 大连理工大学 | A kind of method that new type of continuous prepares controllable biological molecular crystal |
| CN109794078A (en) * | 2019-03-21 | 2019-05-24 | 大连理工大学 | A kind of method and system of the automatic nucleus screening of membrane interface regulation |
| CN113912475A (en) * | 2020-07-08 | 2022-01-11 | 山东福洋生物科技股份有限公司 | Preparation method of erythritol crystals |
| CN112479820A (en) * | 2020-11-16 | 2021-03-12 | 江苏汉光生物工程有限公司 | Erythritol's continuous oscillation flowing film crystallization device |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171124 Termination date: 20180417 |
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| CF01 | Termination of patent right due to non-payment of annual fee |