CN106288667A - A kind of dispersed material liquid nitrogen condensation Minton dryer - Google Patents
A kind of dispersed material liquid nitrogen condensation Minton dryer Download PDFInfo
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- CN106288667A CN106288667A CN201510260913.1A CN201510260913A CN106288667A CN 106288667 A CN106288667 A CN 106288667A CN 201510260913 A CN201510260913 A CN 201510260913A CN 106288667 A CN106288667 A CN 106288667A
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 123
- 239000000463 material Substances 0.000 title claims abstract description 111
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 61
- 239000007788 liquid Substances 0.000 title claims abstract description 55
- 238000009833 condensation Methods 0.000 title claims abstract description 24
- 230000005494 condensation Effects 0.000 title claims abstract description 24
- 238000001291 vacuum drying Methods 0.000 claims abstract description 22
- 239000002245 particle Substances 0.000 claims abstract description 6
- 239000004744 fabric Substances 0.000 claims description 33
- 238000007789 sealing Methods 0.000 claims description 4
- 229920002379 silicone rubber Polymers 0.000 claims description 4
- 239000004945 silicone rubber Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 229910001873 dinitrogen Inorganic materials 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 abstract description 31
- 238000004821 distillation Methods 0.000 abstract description 5
- 239000002826 coolant Substances 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 4
- 239000008187 granular material Substances 0.000 abstract description 3
- 239000006259 organic additive Substances 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 125000004122 cyclic group Chemical group 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 description 14
- 239000002184 metal Substances 0.000 description 12
- 239000007769 metal material Substances 0.000 description 10
- 238000001035 drying Methods 0.000 description 9
- 238000004108 freeze drying Methods 0.000 description 9
- 239000004033 plastic Substances 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 229920001971 elastomer Polymers 0.000 description 5
- 239000005060 rubber Substances 0.000 description 5
- 229920005479 Lucite® Polymers 0.000 description 4
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
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- 238000002844 melting Methods 0.000 description 2
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- 239000011368 organic material Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
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- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
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- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 229960005486 vaccine Drugs 0.000 description 1
- 238000009777 vacuum freeze-drying Methods 0.000 description 1
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- Drying Of Solid Materials (AREA)
Abstract
Invention " a kind of dispersed material liquid nitrogen condensation Minton dryer " aims to solve the problem that the problem that biological chemical field vacuum freeze drier restricts its vacuum drying efficiency because condensing capacity is not enough, the present invention uses liquid nitrogen as condenser coolant, make condenser working less than-150 DEG C of ultralow temperature, correspondingly can improve vacuum and subliming by heating temperature；Coordinating vacuum and the raising of subliming by heating temperature, use cyclic spring pipeline and fluid media (medium) to heat scattered granular material, the heat pipe that adds of heater is embedded in material and contacts with metallic sieve, can realize the three-dimensional heating to material.Meanwhile, arranging multilayer dose and condenser is arranged alternately, the steam of the particle surface distillation in every layer of material inside and outside portion and organic additive can be material bed by adjacent condenser capture condensation from the effusion of material above and below.The Minton dryer with this new construction can be dried the material of kilogram levels in 2-4 hour.
Description
Technical field:
The present invention relates to a kind of high-efficiency vacuum freeze drying plant, utilize liquid nitrogen to make the condenser of the upper and lower both sides of dispersed material be in ultralow as coolant
The steam that temperature state distils with rapid acquiring dispersed material, improves drying efficiency, belongs to biological chemical field.
Technical background:
Being dried is one of biological link with a lot of process of producing product of chemical field.At present conventional dry technology include constant pressure and dry, drying under reduced pressure,
Spray drying and vacuum lyophilization etc..Vacuum lyophilization is mainly used in liquid material, be liquid material is frozen into solid below fusing point after,
Heating solid material in vacuum environment makes water therein be directly sublimed into steam state without liquid and be trapped by condenser, and material dewatering is done the most at last
Dry.Vacuum lyophilization is suitable for being dried of the material such as thermally labile, low melting point, the such as sky such as the medicine such as antibiotic, vaccine and bioorganism goods
So active substance, application prospect is boundless.
Comparing other drying means, vacuum lyophilization needs longer drying time (generally higher than 12 hours).The time of vacuum lyophilization removes
Outside the factors such as and character how many by material are affected, the structure also depending on vacuum freeze designs.Vacuum freeze is mainly by very
Do-nothing system, heating system, condenser system and control system composition, wherein core is heating and condensation.Traditional heating mode is to use electricity or fluid to be situated between
Matter is with heating plate form from material disc bottom-heated, and heat transfer direction is heating plate, material disc, material bottom, material upper strata successively.It will be seen that
It is minimum that the distillation face on the material upper strata needing most heating finally obtains heat, temperature, and this is detrimental to dry materials；On the other hand, material lower floor
Although being heated early, but being affected by bottom material disc and the stop of the top monoblock solids bed of material, moisture cannot distil.Dispersed material is piled up owing to existing
Gap, the material particles surface of material bed inside can also be water sublimed face, and the moisture of distillation can escape through gap, but these internal
The heating of grain is a difficult problem, because contact area is the least between granule.The mode of heatings such as microwave, infrared, ultrasound wave have noncontact and penetrance
Advantage, it can be difficult to precisely limit their heated perimeter, and microwave and ultrasound has lethal effect to material activity, and structure is the most more complicated.Cold
Solidifying technology is ripe, uses single-stage or two-stage composite compressor refrigeration can realize-40 DEG C to-70 DEG C low temperature, it is possible to preferably to meet liter
The trapping of Hua Shui and the requirement of condensation；There is problems of, material to be dried, especially biological and heavy chemicals, often containing various low melting points
Organic additive or solvent, they remain the liquid being prone to evaporation in the range of above-mentioned condensation temperature, without special measures, they usual quilts
Being pumped into vacuum pump, will destroy system vacuum and then affect drying effect, this problem is bigger to the actually used restriction of freezer dryer.
It practice, for vacuum lyophilization, heating, vacuum and refrigeration three part intercouple and mutually restrict: condensation temperature is inadequate
If low, the vacuum of freeze drying chamber does not just increase, and vacuum does not increases and cannot improve the heating-up temperature of material.In this case, can only
Slowly being dried at a temperature of compared with coarse vacuum and relatively low subliming by heating, the drying time of commercialization instrument and equipment is mostly in ten a few to tens of hours.Now,
Even if subliming by heating temperature only has several degrees Celsius or tens degrees Celsius, the impact of material activity also be can not be ignored by the longest drying time.Instead
It, if it is possible to make condenser working at ultralow temperature, then to use common vacuum pump just can the most easily make the vacuum of freeze drying chamber reach
Below 10 handkerchiefs, considerable material now can bear the subliming by heating temperature of short time 30-50 DEG C.Condenser working is good at another of ultralow temperature
Place can trap the above-mentioned organic additive of condensation exactly, makes equipment range wider.Therefore, how to match heating system and refrigeration system is certainly
Locking equipment drying efficiency and the key factor of performance.
Summary of the invention:
The key issue that this invention is to be solved is vacuum freeze drier because condensing capacity deficiency restricts the problem of its vacuum drying efficiency, and the present invention uses
Liquid nitrogen, as condenser coolant, makes condenser working at the ultralow temperature less than-150 DEG C, correspondingly can improve vacuum and subliming by heating temperature；Join
Close vacuum and the raising of subliming by heating temperature, use cyclic spring pipeline and fluid media (medium) to heat scattered granular material, add heat pipe and be embedded in thing
Material realizes three-dimensional heating；Meanwhile, arranging multilayer dose and condenser is arranged alternately, the moisture of the particle surface distillation in every layer of material inside and outside portion all may be used
With material bed by condenser capture condensation from the effusion of material above and below.The freeze drying plant with this new construction can be done in 2-4 hour
The material of dry kilogram levels.
Accompanying drawing illustrates:
With detailed description of the invention, the present invention is described in further details below in conjunction with the accompanying drawings.
Fig. 1 dispersed material liquid nitrogen condensation Minton dryer structural representation.
Fig. 2 condenser tubes coiled fashion schematic diagram.
Fig. 3 mesh structure schematic diagram.
Fig. 4 heater conduit coiled fashion schematic diagram.
Detailed description of the invention:
Device basic structure as it is shown in figure 1, by lower cover the 1, first bearing the 2, first condenser the 3, first screen cloth 4, primary heater 5,
One layer of material the 6, second bearing the 7, second condenser 8, second screen cloth 9, secondary heater 10, second layer material 11, three abutments 12,
Three condensers 13, heat medium pipe 14, exsiccator cylinder 15, upper cover plate the 16, the 4th bearing the 17, the 4th condenser the 18, the 3rd heater the 19, the 3rd
Screen cloth 20, third layer material 21, liquid nitrogen pipe 22, right support 23, seal washer 24, liquid nitrogen house steward 25, liquid nitrogen container 26, one-way valve 27, subtract
Pressure valve 28, high-pressure nitrogen bottle 29, vacuum pump 30, vacuum tube 31, lower carriage 32, left socle 33 and heating agent house steward 34 form.
Lower cover 1 surrounds the vacuum drying cabinet of sealing together with exsiccator cylinder 15 and upper cover plate 16, and vacuum drying cabinet can be cylindrical or square,
Lower cover 1 can be directly utilized or upper cover plate 16 takes material mouth as vacuum drying cabinet, it is also possible to exsiccator cylinder 15 is designed as side opening door.Figure
Lower cover 1 shown in 1 forms removable flexible connection with between exsiccator cylinder 15 by seal washer 24, exsiccator cylinder 15 and upper cover plate 16 it
Between be not removable splicing.One of preferably, side opening door exsiccator cylinder 15 matches with square condensation hothouse.Lower cover 1 is permissible
Being metal or macromolecular material, when using metal, thickness 5-8mm is advisable；Use the desirable 6-20mm of plastic material thickness such as lucite.
First bearing the 2, second bearing 7, three abutments 12 and the 4th bearing 17 are used for installing and fixing condenser, are respectively positioned on vacuum drying indoor,
It is arranged on right support 23 by screw or rivet respectively, it is possible to use belt or tinsel binding are fixing, or directly grafting.These bearings
Structure is identical, can be square or circular sheet, corresponding with vacuum drying chamber shape, it is also possible to be metallic rod or planar bracket that pipe is linked to be, material
Matter can be metal or plastics.In view of they impacts on condenser condensation effect, preferentially select metal material, for template bearing, optional aluminium sheet,
Thickness 0.5-3mm, is covered with through hole above, and the area in hole is not less than the 80% of the plank gross area.And for stent-type structure, diameter 3-5mm can be used
Metal tube or bar are linked to be the shelfs such as cross, square, radiation, spiral type or square shape.
Second condenser the 8, the 3rd condenser 13 and the 4th condenser 18 are separately mounted to the second indoor bearing 7 of vacuum drying, three abutments 12
With on the 4th bearing 17, the first condenser 3 is arranged on lower carriage 32 by the first bearing 2, can tie up with rope band, weld or clamp is fixed.
First condenser the 3, second condenser the 8, the 3rd condenser 13 and the 4th condenser 18 are interconnected, and by liquid nitrogen house steward 25 and liquid nitrogen pipe 22
Connect with liquid nitrogen container 26, liquid nitrogen container 26 provide-196 DEG C of liquid nitrogen to realize the ultralow temperature condensation less than-150 DEG C of all condensers.Four condenser knots
Structure is identical with material, can be aluminium alloy, rustless steel or copper alloy, preferably pure copper tube, and diameter 4-10mm, wall thickness 0.2-1mm can curve
Spiral type, indentation or flat pattern are tubular, and screw type shown in Fig. 2 is a kind of preferred version, the screw type that the semicircle being gradually increased for radius connects,
One end of the inside press tangent line and move towards extraction, it is also possible to vertical spin faces down extraction, and the spacing of two adjacent rings spiral is less than pipe diameter 3 times.
First screen cloth the 4, second screen cloth 9 and the 3rd screen cloth 20 are respectively used to lay primary heater 5 and ground floor material 6, secondary heater 10
With second layer material the 11, the 3rd heater 19 and third layer material 21, on the one hand screen cloth acts the effect accepting material, the most indirectly heating
Those with heater contacts but are not heated by material with the material particles of screen contact.Their structure is identical with material, is pacified by screw or rivet
It is contained on left socle 33, it is possible to use belt or tinsel binding are fixing, or directly grafting.These screen clothes can be metal or non-metallic material
Matter, it is contemplated that the factor such as heat conduction and corrosion resistance, preferably rustless steel, screen cloth thickness 0.1-2mm, the area in hole is not less than the 50% of the screen cloth gross area,
Sieve diameter 0.05-1mm, can fix bracing piece if desired on screen cloth.Additionally, for ease of fully sprawling material, screen cloth periphery can be turned up or adds
Dress defensive wall is to prevent material unrestrained from side.Fig. 3 show one of screen cloth preferred structure circular configuration, and aperture is staggered.
Primary heater 5, secondary heater 10 and the 3rd heater 19 are respectively placed on first screen cloth the 4, second screen cloth 9 and the 3rd screen cloth 20,
For heating to material to be dried, top is covered with heated material by material, and screen cloth is close in bottom can be by screen cloth to the material only contacting screen cloth
Grain heating.Their structure is identical with material.Heater is pipeline coiled structure, and pipe interior is liquid or the gas of flowing, and pipeline can be gold
Belonging to material, rubber or plastics, preferred surface passes through the silicone rubber material destaticing process, outer diameter tube 4-10mm, internal diameter 3-9mm, uses silicon
The advantage of rubber is that its elastic deformation contributes to preferably contacting with material and being beneficial to conduct heat；As shown in Figure 4, centre is a kind of preferably coiled fashion
S-shaped, afterwards for staggered Double helix, adjacent channel centre-to-centre spacing is less than 2 times of pipe diameter, and the advantage of this pattern is that pipeline coils at grade.
Ground floor material 6, second layer material 11 and third layer material 21 spread on first screen cloth the 4, second screen cloth 9 and the 3rd screen cloth 20 respectively
Face, and respectively primary heater 5, secondary heater 10 and the 3rd heater 19 are embedded in wherein, it is achieved the heater three-dimensional heating to material,
Effectively increase the heat transfer area with material, thus improve the efficiency of heating surface.Every layer of material thickness 5-20mm.Material is for taking scraper plane or rolling mode
The fine particle of linear-scale 0.5-5mm obtained.First condenser (3), ground floor material (6), the second condenser (8), second layer material
(11), the 3rd condenser (13), third layer material (21), the 4th condenser (18) the most alternately lay, formed sandwich style
Arrangement, the two sides of every layer of material all has condenser adjacent thereto, and material bed and spacing 30-80mm of adjacent condenser, from material bed upper and lower surface
Steam and the organic solvent of distillation are trapped condensation nearby by adjacent condenser, and steam stroke is short, and condensation efficiency is high.
Heat medium pipe 14, for the fluid of heated material is imported to each heater from vacuum drying outdoor, can be metal material or plastic material, for
Avoid heat loss on the way, preferably silicone rubber tube, tube outer diameter 6-12mm, internal diameter 7-15mm.Heat medium pipe 14 is banded on left socle 33.
Exsiccator cylinder 15 surrounds vacuum drying cabinet with lower cover 1 and upper cover plate 16, can be metal or non-metallic material, and comprehensive cost performance preferably has
Machine glass, corresponding columnar structured time diameter 150-350mm be advisable, length 200-600mm, thickness 6-20mm.Exsiccator cylinder selects square structure
Time, preferably metal material and side opening structure.
Upper cover plate 16 surrounds vacuum drying cabinet with exsiccator cylinder 15 and lower cover 1, and during metal material, thickness 5-8mm is advisable, during lucite material
6-20mm, preferably lucite.
Liquid nitrogen pipe 22, for cooling medium liquid nitrogen is imported to each condenser from vacuum drying outdoor, can be metal material or macromolecular material, excellent
Select metal material, tube outer diameter 4-10mm, internal diameter 3-9mm.Liquid nitrogen pipe 22 is tied up or is clamped on right support 23.
Right support 23 is used for fixing condenser and bearing thereof and liquid nitrogen pipe 22, can be with metal or organic material manufacture, it is possible to use double-deck multiple
Condensation material.Right support 23 is fixed on lower cover 1 by bolt or adhesive by bottom, uses metal can also weld when manufacturing.
Seal washer 24, for the movable installed surface between hermetically drying device cylinder 15 and lower cover 1, uses rubber or plastics, preferably silicone rubber.
Liquid nitrogen house steward 25 is used for connecting liquid nitrogen container 26 and liquid nitrogen pipe 22, can use double-ply bellows or the additional heat insulation layer structure of metal tube, or internal layer gold
Belong to pipe and add outer layer bellows structure.Preferably double-ply bellows, Sandwich filling heat-barrier material.Preferably stainless steel.
Liquid nitrogen container 26 stores liquid nitrogen, uses double-level-metal design, and intermediate course evacuation or filling with insulation material, to reduce outside internal liquid nitrogen absorption
Boundary's heat.Liquid nitrogen container 26 top cover has the interface connecting high-pressure nitrogen bottle 29, has a pressure-relief valve, and liquid nitrogen house steward 25.Liquid nitrogen container 26 and height
An one-way valve 27 is had between pressure nitrogen cylinder 29.
One-way valve 27 is used for liquid nitrogen container 26 supercharging, manual or electromagnetic valve.
Air relief valve 28 is for being kept to be suitable to the pressure that liquid nitrogen container 26 uses by the high pressure nitrogen in high-pressure nitrogen bottle 29.
High-pressure nitrogen bottle 29 provides pressure for conveying liquid nitrogen, general no less than 10 atmospheric pressure.
Vacuum pump 30 provides vacuum by vacuum tube 31 for vacuum drying cabinet, considers preferred single-stage sliding vane rotary pump from cost performance, and power is not more than 300 watts,
Final vacuum should be better than 5 handkerchiefs.
Vacuum tube 31 is used for connecting vacuum pump 30 and vacuum drying cabinet, can use metal, plastics or rubber tube.
Lower carriage 32, for supporting the first bearing 2 and the first condenser 3, is lost condensation performance for reducing outside heat incoming, and lower carriage 32 is excellent
Select the nonmetallic materials of good heat-insulation effect, such as nylon, lucite, foamed ceramics etc..
Left socle 33, can be with metal or organic material manufacture, it is possible to use double-layer composite material for fixed grit and heater.Left socle
33 are fixed on lower cover 1 by bolt or adhesive by bottom, use metal can also weld when manufacturing.
Heating agent house steward 34, for external heating medium is sent into the heat medium pipe 14 in vacuum desiccator, can use metal tube, plastic tube or rubber tube.
Device workflow:
The first step: open high-pressure nitrogen bottle 29, regulates air relief valve 28 to 0.01-0.1MPa, opens one-way valve 27, and pressed gas is by high pressure nitrogen
Bottle 29 enter liquid nitrogen containers 26 and by liquid nitrogen by liquid nitrogen house steward 25 and liquid nitrogen pipe 22 have respectively entered first condenser the 3, second condenser 8, the
Three condenser 13 and the 4th condensers 18, carry out pre-cooling to system；
Second step: open vacuum drying cabinet at sealing ring 24, sprawls respectively by first material bed 6, second material bed 11 and 3 material layer 21
On first screen cloth the 4, second screen cloth 9 and the 3rd screen cloth 20, rapid containing vacuum hothouse；
3rd step: start vacuum pump 30, to vacuum drying cabinet evacuation；
4th step: when vacuum drying cabinet vacuum reaches 10-13 handkerchief, by heating agent house steward 34 and heat medium pipe 14 to primary heater 5, second
Heater 10 and the 3rd heater 19 import and add thermal medium, and by heating and temperature control below 25 DEG C；
5th step: when vacuum drying cabinet vacuum reaches below 3 handkerchiefs, can be according to material properties by primary heater 5, secondary heater 10 and
3rd heater 19 temperature continues to raise, but the highest no more than 50 DEG C；
6th step: when confirming that each layer material is completely dried, stop the heating to material, close vacuum pump 30 and shed vacuum, from sealing ring 24
Place opens vacuum drying cabinet, is swept down by dried material from each layer screen cloth；
7th step: finally close one-way valve 27 and air relief valve 28, sheds liquid nitrogen container intrinsic pressure to stop the liquid nitrogen supply to condenser.
Claims (6)
1. a dispersed material liquid nitrogen condensation Minton dryer, including by lower cover (1) by seal washer (24) and exsiccator cylinder (15) and upper
Cover plate (16) surrounds the vacuum drying cabinet of sealing together, and being dried for vacuum drying cabinet provides vacuum pump (30) and the vacuum tube (31) of vacuum, for
Liquid nitrogen provides the one-way valve (27) of pressure nitrogen gas, air relief valve (28) and high-pressure nitrogen bottle (29), it is characterised in that: this device also includes that vacuum is done
Dry indoor left socle (33), right support (23) and lower carriage (32), the second condenser (8), the 3rd condenser (13) and the 4th condenser (18)
It is arranged on right support (23) by the second bearing (7), three abutments (12) and the 4th bearing (17) that vacuum drying is indoor respectively, first
Condenser (3) is arranged on lower carriage (32) by the first bearing (2), ground floor material (6) and primary heater (5), second layer thing
Material (11) and secondary heater (10), third layer material (21) and the 3rd heater (19) are separately mounted to be supported by left socle (33)
Above, liquid nitrogen container (26) passes through liquid nitrogen house steward (25) and liquid nitrogen pipe (22) for first screen cloth (4), the second screen cloth (9) and the 3rd screen cloth (20)
It is that the first condenser (3), the second condenser (8), the 3rd condenser (13) and the 4th condenser (18) provide liquid nitrogen, adds thermal medium by heat
House steward matchmaker (34) and heat medium pipe (14) enter primary heater (5), secondary heater (10) and the 3rd heater (19).
A kind of dispersed material liquid nitrogen condensation Minton dryer the most according to claim 1, it is characterised in that: the first condenser (3), second cold
Condenser (8), the 3rd condenser (13) and the 4th condenser (18) are by liquid nitrogen house steward (25) and liquid nitrogen pipe (22) and liquid nitrogen container (26) phase
Connection, is provided liquid nitrogen to realize the ultralow temperature condensation less than-150 DEG C by liquid nitrogen container (26).
A kind of dispersed material liquid nitrogen condensation Minton dryer the most according to claim 1, it is characterised in that: the first condenser (3), ground floor
Material (6), the second condenser (8), second layer material (11), the 3rd condenser (13), third layer material (21), the 4th condenser (18)
The most alternately lay, formed sandwich style arrangement, the two sides of every layer of material all has condenser adjacent thereto, material and adjacent condenser it
Spacing 30-80mm.
A kind of dispersed material liquid nitrogen condensation Minton dryer the most according to claim 1, it is characterised in that: ground floor material (6), the second layer
Material (11) and third layer material (21), in discrete particles shape, spread over the first screen cloth (4), the second screen cloth (9) and the 3rd screen cloth (20) respectively
Above, every layer of material thickness 5-20mm, material particles diameter 0.5-5mm, sieve diameter 0.05-1mm on screen cloth.
A kind of dispersed material liquid nitrogen condensation Minton dryer the most according to claim 1, it is characterised in that: primary heater (5), second add
Hot device (10) and the 3rd heater (19) are embedded in ground floor material (6), second layer material (11) and third layer material (21) respectively,
They tops are covered by material, and bottom is adjacent to screen cloth.
Primary heater (5), secondary heater (10) and the 3rd heater (19) the most according to claim 5, it is characterised in that: heater is
Pipeline plane coiled structure, pipeline preferred surface, through destaticing the silicone rubber of process, outer diameter tube 4-10mm, internal diameter 3-9mm, is preferably coiled
Structure is middle S-shaped, and afterwards for staggered Double helix, adjacent channel centre-to-centre spacing is less than 2 times of pipe diameter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510260913.1A CN106288667A (en) | 2015-05-21 | 2015-05-21 | A kind of dispersed material liquid nitrogen condensation Minton dryer |
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| CN201510260913.1A CN106288667A (en) | 2015-05-21 | 2015-05-21 | A kind of dispersed material liquid nitrogen condensation Minton dryer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107011408A (en) * | 2017-04-21 | 2017-08-04 | 荣海生物科技有限公司 | A kind of Soybean Peptide production freeze drying plant of low energy consumption |
| CN113479456A (en) * | 2021-04-06 | 2021-10-08 | 上海思乐得不锈钢制品有限公司 | Vacuum container for storing and transporting biological products |
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2015
- 2015-05-21 CN CN201510260913.1A patent/CN106288667A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107011408A (en) * | 2017-04-21 | 2017-08-04 | 荣海生物科技有限公司 | A kind of Soybean Peptide production freeze drying plant of low energy consumption |
| CN113479456A (en) * | 2021-04-06 | 2021-10-08 | 上海思乐得不锈钢制品有限公司 | Vacuum container for storing and transporting biological products |
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Application publication date: 20170104 |