CN207919028U - A kind of defoaming device of cellulose solution - Google Patents
A kind of defoaming device of cellulose solution Download PDFInfo
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- CN207919028U CN207919028U CN201721839229.XU CN201721839229U CN207919028U CN 207919028 U CN207919028 U CN 207919028U CN 201721839229 U CN201721839229 U CN 201721839229U CN 207919028 U CN207919028 U CN 207919028U
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Abstract
The utility model discloses a kind of defoaming devices of cellulose solution, including outer barrel, are configured to the main body of defoaming device, and the outer barrel bottom is provided with liquid outlet；Material barrel is configured at the inside of outer barrel, through-hole is provided on the material barrel cylinder；Speed regulation device is configured to that material barrel is driven to do centrifugal movement；Inlet tube passes through outer barrel, and solution is sent into material barrel；Material storage device is connected to the liquid outlet of outer barrel bottom, and is configured at the position less than outer barrel；The material storage device bottom is connected with drawing mechanism.The utility model one kind is simple in structure, easily operated, it has the characteristics that efficient deaeration, continuous defoaming, can ensure that follow-up spinning is carried out continuously, and de-aeration does not influence material conveying, realizing efficient deaeration and continuous production can be carried out at the same time, and defoaming method effect is good, with obtained spinning solution stability height, uniformity is good, is not likely to produce the cellulose solution defoaming device of gel.
Description
Technical field
The utility model is related to a kind of defoaming devices of cellulose solution.
Background technology
Cellulose does not dissolve in usual vehicle, and the production of regenerated celulose fibre is prepared based on traditional viscose process and cuprammonium process
Technique due to complex procedures, pollutes big, high energy consumption, is gradually replaced by emerging solvent spining technology.Wherein, compare tool
It is promising to have NMMO (N-methyl morpholine oxide) solvent method, ionic liquid and low-temperature alkaline/urea method.NMMO solvent legal systems
Standby cellulose fibre has realized industrialized production, but the reason in part for due to cost factor and fiber itself, the life of NMMO solvent methods
The extension of production scale is by certain restriction.Although ionic liquid is the good solvent of cellulose, but it have solution viscosity greatly with
And the disadvantage that solution temperature is high, and people are fine to ionic liquid toxicity, ionic liquid spinning process and regenerated cellulose at present
The performance of dimension also lacks overall understanding, therefore is unfavorable for large-scale industrialization promotion.Low-temperature alkaline/urea method has been carried out largely
Pilot scale research, which can be used for producing cellulose fibre, have that cost of material is low, preparation process is simple, free from environmental pollution
Many advantages, such as, it is a kind of green cleanly production technique, but also have a certain distance from industrialized production.
It is that spinning solution is unstable that low-temperature alkaline/urea method, which prepares main problem existing for cellulose solution, is easy gelation.It is special
Not for highly viscous spinning solution, a large amount of bubbles are will produce in high-speed stirred or transmission process, and these bubbles are difficult to use
Conventional method carries out fast eliminating.Using standing and defoaming or vacuumizes stirring deaeration not only the time is long, efficiency is low, and de-aeration
In easily generate gelation, cause spinning fluid viscosity increase even lose flowability, due to this gelation have irreversibility,
Therefore totally unfavorable to follow-up spinning.
In order to improve the deaeration effect of such high viscosity spinning solution, many manufacturing enterprises carry out the construction of defoaming device
Transformation research.As patent CN202876464U discloses a kind of miniature spin filter defoaming device.Spinning solution in transmission process,
By regulating and controlling the device external pressure and vacuum degree respectively to control vacuum pressure when deaeration, to complete dynamically removing bubble and mistake
Filter.Although the device can remove the part bubble in spinning solution to a certain extent, the device is since cost is excessively high, vacuum system
System is complicated, deaeration effect is undesirable, and there is the problems such as assembly and disassembly and big labor intensity of filter wash cloth, is unfavorable for industrialization and pushes away
Extensively.
Patent CN106222761A discloses a kind of high concentration high viscosity spinning solution dissolving defoaming device.The equipment is a kind of
Dissolving and deaeration can be made within one device by the control to equipment vacuum degree without the dissolving defoaming device of agitating device
It completes.Meanwhile the device does not use traditional stirring paddle stirring deaeration mode, avoid brought into whipping process bubble and
Feed degradation caused by high-speed stirred and structure are destroyed.But this kind of deaeration mode need to carry out under higher vacuum, to equipment
It is more demanding, and time-consuming for deaeration, efficiency is low, is unable to reach expected deaeration effect.
Patent CN206121234U discloses a kind of high-viscosity liquid defoaming device based on film deaeration.The device
The thickness of liquid film that different viscosities liquid is formed in the device is controlled by controlling motor speed, and is removed under certain vacuum degree
Bubble in liquid film.Although the device, which can adapt to liquid viscosity, changes and ensure deaeration efficiency, when liquid is more in device
When, it is difficult to the bubble of deep layer is sloughed, and the plant energy consumption is higher, cannot be satisfied continuous production requirement.
Low-temperature alkaline/urea method spinning solution mostly uses greatly intermittent reduced pressure vacuumizing and defoaming device, this deaeration mode at present
Efficiency is very low, it usually needs 120~300min, and need to use multiple defoaming devices, it is not high that there are production capacity, floor space
The problems such as big.Meanwhile solvent can also be detached from solution together under the conditions of high negative pressure make surface solution excessive concentration and
Skinning causes cellulose solution lack of homogeneity.
Since low-temperature alkaline/urea method spinning solution stability is poor, with the variation of time and temperature, the cellulose in spinning solution
It can be precipitated from solvent, form the gel of cross-linked structure.Not only time-consuming for existing defoaming method, and temperature becomes in device
Change larger, easily cause gel phenomenon, the spinning solution uniformity caused differs, deaeration effect also unobvious, while not
It can guarantee that bubble removal efficiency and spinning solution quality, pole are unfavorable for continuous and large-scale production.
Factors above strongly limits the industrialization development of low-temperature alkaline/urea method cellulose fibre.
Therefore, it is necessary to be improved to shortcomings and deficiencies of the prior art, provide a kind of simple in structure, easily operated
Low-temperature alkaline/urea method spinning solution has the characteristics that efficient deaeration, continuous defoaming, can ensure that follow-up spinning is carried out continuously, can
The quality of spinning solution is greatly improved, fracture of wire phenomenon is reduced；And de-aeration does not influence material conveying, realizes efficient deaeration and company
Continuous production can be carried out at the same time, and defoaming method effect is good, have and spinning solution stability height is made, uniformity is good, is not likely to produce
The cellulose solution defoaming device of gel.
In view of this special to propose the utility model.
Utility model content
The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide one kind can overcome it is above-mentioned
Problem or the cellulose solution defoaming device to solve the above problems at least partly.
In order to solve the above technical problems, the utility model is using the basic conception of technical solution：A kind of cellulose solution
Defoaming device, including outer barrel is configured to the main body of defoaming device, the outer barrel bottom is provided with liquid outlet；Material barrel, configuration
In being provided with through-hole on the inside of outer barrel, the material barrel cylinder；Speed regulation device is configured to that material barrel is driven to do centrifugal movement；
Inlet tube passes through outer barrel, and solution is sent into material barrel；Material storage device is connected to the liquid outlet of outer barrel bottom, and configures
In the position less than outer barrel；The material storage device bottom is connected with drawing mechanism.
Wherein, the bottom of the outer barrel has been configured as an inclined angle of orientation liquid outlet, is conducive to solution outflow.
In addition, the material barrel top half is cylinder, lower half portion is tapered；The through-hole is set to conical section
On cylinder.
Further, it is put equipped with the material that both ends are connected with cylindrical tube inner wall respectively in the cylindrical tube
Plate, the material placement plate hold the solution of inlet tube feeding.
Further, the inner wall of the outer barrel is equipped with the component for having guide functions to solution, it is preferable that the water conservancy diversion is made
Component is deflector or diversion trench or smooth inner wall.
Meanwhile including the pressure control device being connect with outer barrel and material storage device, and around outer barrel and material storage
The sub-cooled of cryopreservation device setting recycles temperature control device.
Further, the pressure control device makes vacuum degree in defoaming device be maintained at 5~50KPa of absolute pressure.
Further, the temperature of the sub-cooled cycle temperature control device is -10~20 DEG C, it is preferable that temperature is -10
~10 DEG C, it is highly preferred that temperature is 0~10 DEG C.
A kind of defoaming method of cellulose solution includes a kind of defoaming device of cellulose solution described above, this is de-
Bubble method includes the following steps：
S1. obtained alkali/urea method cellulose solution is subjected to Cord blood, Cord blood temperature is -10~20 DEG C, institute
It is 0~10h to state the holding time；
S2. above-mentioned cellulose solution is delivered to through input duct in the material barrel placement plate of evacuation and centrifugal degassing device；
S3. the sub-cooled for starting evacuation and centrifugal degassing device recycles temperature control device, and setting temperature is -10~20 DEG C；Start pressure
Force control device makes vacuum degree in defoaming device be maintained at 5~50KPa of absolute pressure；Start the speed regulation device of centrifugation apparatus, if
It is 200~2000r/min to set rotating speed, and inclined heated plate is set as 1~20min；
S4. after the completion of deaeration, material storage device is delivered to by centrifugation apparatus outer cylinder discharge port, then via discharging
Device is delivered to hypomere spinning process and continuous defoaming can be realized.
In one embodiment, Cord blood temperature described in step S1 is -5~10 DEG C, and the holding time is 0~1h.
In one embodiment, the temperature of sub-cooled cycle temperature control device described in step S3 is -10~10 DEG C.
In one embodiment, the temperature of sub-cooled cycle temperature control device described in step S3 is 0~10 DEG C.
In one embodiment, it is 5~20Kpa that defoaming device described in step S3, which is evacuated to absolute pressure,.
In one embodiment, the speed regulation device rotating speed of centrifugation apparatus described in step S3 is 500~2000r/min, deaeration
Time is 1~10min.
After adopting the above technical scheme, the utility model has the advantages that compared with prior art：
1, according to the defoaming device and method of cellulose solution described in the utility model, after starting centrifugal device, due to
Cellulose solution is different from the density of bubble, keeps the centrifugal force suffered by it different, therefore solution and bubble are detached.
2, under the effect of the negative pressure of vacuum of defoaming device described in the utility model, the cellulose solution in material placement plate
Internal minute bubbles are set to shift to its surface, and further puffing, diffusion simultaneously removes rapidly, greatly improves deaeration efficiency；With biography
The vacuum stirring deaeration mode of system is compared, and is avoided long-time high-speed stirred and is destroyed caused by the structure of cellulosic material, with
And skinning caused by surface solution excessive concentration under the conditions of high negative pressure.
3, material barrel and material placement plate is driven to make centrifugation circular motion in outer barrel by motor, cellulose solution is without fixed
To getting rid of to material barrel inner wall, and disperseed to get rid of to described outer by equally distributed aperture on conical shell under the action of the centrifugal force
Cylinder inner wall, completes de-aeration under vacuum conditions, and the spinning solution after deaeration flows to the object by liquid outlet downwards by dead weight
Expect storage device, realizes evacuation and centrifugal degassing, vacuum defoamation, and the process that gravity deaeration is combined under vacuum conditions, to
Ensure or improve deaeration effect.
4, the utility model centrifugation apparatus is connected with material storage device, the solution after deaeration through drawing mechanism directly by
Material storage device is delivered to hypomere spinning process and continuous defoaming can be realized, and does not influence the spy of material conveying with de-aeration
Point solves efficient deaeration and is difficult to the technical barrier met simultaneously with continuous production.
5, under the low-temperature protection of defoaming device described in the utility model, cellulose solution in deaeration low-temperature treatment and
Temperature change is smaller in low temperature transmission process after deaeration, and inclined heated plate is shorter, effectively prevents spinning while removing bubble
In power de-aeration since temperature raises, the gelatin phenomenon caused by cellulolytic activity enhancing ensure that spinning solution to silk liquid
Homogeneity, greatly improve spinning solution quality, reduce spinneret hole plug and fracture of wire phenomenon in spinning process, solve
The deficiency of technology at present.
6, utility model device recycles temperature control device with sub-cooled and pressure control device is connected, and is protected using low temperature
Shield, centrifugation plus vacuumize auxiliary deaeration mode, overcome spinning solution standing and defoaming or vacuumize stirring de-aeration in easily
The problem for forming gel, cellulose solution enters in material barrel placement plate i.e. beginning in vacuum through input duct in the technical program
Evacuation and centrifugal degassing process is completed under environment, and can the material storage device be flowed to by outer cylinder liquid outlet in time, meanwhile, lead to
Centrifugation apparatus liquid inlet volume and drawing mechanism are overregulated, the balance of liquid level in centrifugation apparatus and material storage device is can control, into one
Step ensure that deaeration effect.
7, according to defoaming method described in the utility model, Cord blood is carried out to it before cellulose solution deaeration
Low temperature supplying step after low-temperature processing steps and deaeration when step, deaeration, avoid cellulose solution before and after deaeration due to
Viscosity change caused by temperature change improves solution uniformity and has effectively delayed the generation of spinning solution gel phenomenon, greatly
The big quality for improving spinning solution, has pushed the Progress in industrialization of low-temperature alkaline/urea method cellulose fibre.
8, the utility model provides a kind of defoaming device for cellulose solution, which has simple in structure, accounts for
Ground area is few, at low cost, and production efficiency is high, realizes the advantages of efficient deaeration and serialization steady production can be carried out at the same time, because
This can meet the requirement of industrialized production completely.
Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.
Description of the drawings
A part of the attached drawing as the utility model, is further understood from the utility model for providing, this practicality
Novel illustrative embodiments and their description are not constituted improper limits to the present invention for explaining the utility model.
Obviously, the accompanying drawings in the following description is only some embodiments, to those skilled in the art, is not paying creation
Property labour under the premise of, can also be obtained according to these attached drawings other accompanying drawings.
In the accompanying drawings：
Fig. 1 is the defoaming device schematic diagram of the utility model cellulose solution.
In figure：1, outer barrel；2, material barrel；3, inlet tube；4, speed regulation device；5, material storage device；6, drawing mechanism；7、
Material placement plate；8, transparent sight glasses；9, pressure control device；10, sub-cooled recycles temperature control device.
It should be noted that these attached drawings and verbal description are not intended to limit the design of the utility model in any way
Range, but be the concept that those skilled in the art illustrate the utility model by referring to specific embodiments.
Specific implementation mode
It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer
The technical solution in embodiment is clearly and completely described in attached drawing in type embodiment, and following embodiment is for illustrating this
Utility model, but be not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that term "upper", "lower", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as "vertical", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for describing the utility model and simplifying to describe, specific side must be had by not indicating or implying the indicated device or element
Position, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can also be electrical connection；It can be directly connected, it can also be indirectly connected through an intermediary.
For the ordinary skill in the art, it can understand that above-mentioned term in the present invention specific contains with concrete condition
Justice.
As shown in Figure 1, a kind of defoaming device of cellulose solution of the utility model, including outer barrel 1, it is configured to defoaming device
Main body, 1 bottom of the outer barrel is provided with liquid outlet；Material barrel 2, is configured at the inside of outer barrel 1, on 2 cylinder of the material barrel
It is provided with through-hole；Speed regulation device 4 is configured to that material barrel 2 is driven to do centrifugal movement；Inlet tube 3 passes through outer barrel 1, solution is sent into
In material barrel 2；Material storage device 5 is connected to the liquid outlet of 1 bottom of outer barrel, and is configured at the position less than outer barrel 1；It is described
5 bottom of material storage device is connected with drawing mechanism 6, and drawing mechanism 6 described in the utility model is to be connected to material storage device 5
The Vacuum discharge of bottom pumps；Outer barrel 1 and material storage device 5 are equipped with vacuum pumping hole, and the vacuum pumping hole passes through vacuum
Pipeline is connect with pressure control device 9；Outer barrel 1 and 5 inner wall of material storage device are equipped with heat preservation internal layer, the heat preservation internal layer with it is low
Warm cooling cycle temperature control device 10 connects.
Pressure control device 9 described in the utility model be vacuum pump, vacuum pump by vacuum pipe, respectively with outer barrel and
Vacuum pumping hole connection on material storage device 5；The vacuum pump can be one, two or more, a vacuum
Pump can connect one, two or more vacuum pipes.
Wherein, the bottom of the outer barrel 1 has been configured as an inclined angle of orientation liquid outlet, is conducive to solution outflow.
In addition, 2 top half of the material barrel is cylinder, lower half portion is tapered；The through-hole is set to tapered portion
Divide on cylinder.
Further, the material placement plate being connected respectively with cylindrical tube inner wall equipped with both ends in the cylindrical tube
7, the material placement plate 7 holds the solution of the feeding of inlet tube 3.
Further, the inner wall of the outer barrel 1 is equipped with the component for having guide functions to solution, it is preferable that the water conservancy diversion
The component of effect is deflector or diversion trench or smooth inner wall.
Meanwhile including the pressure control device 9 being connect with outer barrel 1 and material storage device 5, and around outer barrel 1 and object
Expect that the sub-cooled that storage device 5 is arranged recycles temperature control device 10, the sub-cooled cycle temperature control device 10 is with temperature
The low-temperature cooling fluid circulating pump of control device.
Further, the pressure control device 9 makes vacuum degree in defoaming device be maintained at 5~50KPa of absolute pressure.
Further, the temperature of sub-cooled cycle temperature control device 10 is -10~20 DEG C, it is preferable that temperature is -
10~10 DEG C, it is highly preferred that temperature is 0~10 DEG C.
A kind of defoaming method of the plain solution of dimension, includes a kind of defoaming device of cellulose solution described above, the deaeration
Method includes the following steps：
S1. obtained alkali/urea method cellulose solution is subjected to Cord blood, Cord blood temperature is -10~20 DEG C, institute
It is 0~10h to state the holding time；
S2. above-mentioned cellulose solution is delivered to through inlet tube 3 in 2 placement plate of material barrel of evacuation and centrifugal degassing device；
S3. the sub-cooled for starting evacuation and centrifugal degassing device recycles temperature control device 10, and setting temperature is -10~20 DEG C；Start
Pressure control device 9 makes vacuum degree in defoaming device be maintained at 5~50KPa of absolute pressure；Start the speed regulation device of centrifugation apparatus
4, setting rotating speed is 200~2000r/min, and inclined heated plate is set as 1~20min；
S4. after the completion of deaeration, material storage device 5 is delivered to by 1 discharge port of centrifugation apparatus outer barrel, then via discharging
Device 6 is delivered to hypomere spinning process and continuous defoaming can be realized.
According to the defoaming device and method of cellulose solution described in the utility model, after starting centrifugal device, due to fibre
The plain solution of dimension is different from the density of bubble, keeps the centrifugal force suffered by it different, therefore solution and bubble are detached.
Under the negative pressure of vacuum effect of defoaming device described in the utility model, the cellulose solution in material placement plate 7
Internal minute bubbles are set to shift to its surface, and further puffing, diffusion simultaneously removes rapidly, greatly improves deaeration efficiency.
Meanwhile driving material barrel 2 and material placement plate 7 to make centrifugation circular motion in outer barrel 1 by motor, cellulose is molten
Liquid is omnidirectional to be got rid of to 2 inner wall of material barrel, and is disperseed to get rid of by equally distributed aperture on conical shell under the action of the centrifugal force
To 1 inner wall of the outer barrel, de-aeration is completed.Spinning solution after deaeration flows to the material storage by discharge port downwards by dead weight
Then cryopreservation device 5 is delivered to next workshop section via drawing mechanism 6 and continuous defoaming can be realized.
Under the low-temperature protection of defoaming device described in the utility model, cellulose solution low-temperature treatment and de- in deaeration
Temperature change is smaller in low temperature transmission process after bubble, and inclined heated plate is shorter, is effectively prevented while ensuring deaeration effect
Since temperature raises in deaeration, the gelatin phenomenon caused by cellulolytic activity enhancing improves spinning solution quality to spinning solution.
Embodiment one
As shown in Figure 1, a kind of defoaming device of cellulose solution described in the present embodiment, including outer barrel 1, it is configured to deaeration
The main body of device, 1 bottom of the outer barrel are provided with liquid outlet；Material barrel 2 is configured at the inside of outer barrel 1, the material barrel 2
Through-hole is provided on body；Speed regulation device 4 is configured to that material barrel 2 is driven to do centrifugal movement；Inlet tube 3 passes through outer barrel 1, by solution
It is sent into material barrel 2；Material storage device 5 is connected to the liquid outlet of 1 bottom of outer barrel, and is configured at the position less than outer barrel 1；
5 bottom of the material storage device is connected with drawing mechanism 6, and drawing mechanism 6 described in the utility model is to be connected to material storing
The Vacuum discharge of 5 bottom of device pumps；Outer barrel 1 and material storage device 5 are equipped with vacuum pumping hole, and the vacuum pumping hole passes through
Vacuum pipe is connect with pressure control device 9；Outer barrel 1 and 5 inner wall of material storage device are equipped with heat preservation internal layer, the heat preservation internal layer
It is connect with sub-cooled cycle temperature control device 10.
Pressure control device 9 described in the utility model be vacuum pump, vacuum pump by vacuum pipe, respectively with outer barrel and
Vacuum pumping hole connection on material storage device 5；The vacuum pump can be one, two or more, a vacuum
Pump can connect one, two or more vacuum pipes.
Wherein, the bottom of the outer barrel 1 has been configured as an inclined angle of orientation liquid outlet, is conducive to solution outflow.
In addition, 2 top half of the material barrel is cylinder, lower half portion is tapered；The through-hole is set to tapered portion
Divide on cylinder.
Further, the material placement plate being connected respectively with cylindrical tube inner wall equipped with both ends in the cylindrical tube
7, the material placement plate 7 holds the solution of the feeding of inlet tube 3.
Further, the inner wall of the outer barrel 1 is equipped with the component for having guide functions to solution, it is preferable that the water conservancy diversion
The component of effect is deflector or diversion trench or smooth inner wall.
Embodiment two
As shown in Figure 1, it is further limiting for embodiment one that the present embodiment, which is above-mentioned, a kind of fiber described in the present embodiment
The defoaming device of plain solution, includes a kind of defoaming device of cellulose solution described above, including with outer barrel 1 and material storing
The pressure control device 9 that device 5 connects, and the sub-cooled cycle temperature control being arranged around outer barrel 1 and material storage device 5 fill
10 are set, the sub-cooled cycle temperature control device 10 is the low-temperature cooling fluid circulating pump with temperature control equipment.
Further, the pressure control device 9 makes vacuum degree in defoaming device be maintained at 5~50KPa of absolute pressure.
Further, the temperature of the sub-cooled cycle temperature control device 10 is -10~20 DEG C.
Outer barrel 1 and material storage device 5 are equipped with pressure control device 9 and sub-cooled recycles temperature control device 10, protect
The rapid centrifugation deaeration under low temperature and condition of negative pressure of highly viscous cellulose solution is demonstrate,proved, it is ensured that the pressure in evacuation and centrifugal degassing device
Dynamic balance, while effectively preventing caused gel phenomenon in de-aeration.
Embodiment three
The present embodiment is further limiting for above-described embodiment two, and the sub-cooled described in the present embodiment recycles temperature control device
10 temperature is -10~10 DEG C.
Example IV
The present embodiment is further limiting for above-described embodiment two or embodiment three, the sub-cooled described in the present embodiment
The temperature for recycling temperature control device 10 is 0~10 DEG C.
Embodiment five
The present embodiment is the further limiting to any embodiment of example IV of above-described embodiment one, the present embodiment institute
A kind of defoaming method of cellulose solution is stated, a kind of defoaming device of cellulose solution described above, the defoaming method are included
Include the following steps：
S1. obtained alkali/urea method cellulose solution is subjected to Cord blood, Cord blood temperature is -10~20 DEG C, institute
It is 0~10h to state the holding time；
S2. above-mentioned cellulose solution is delivered to through inlet tube 3 in 2 placement plate of material barrel of evacuation and centrifugal degassing device；
S3. the sub-cooled for starting evacuation and centrifugal degassing device recycles temperature control device 10, and setting temperature is -10~20 DEG C；Start
Pressure control device 9 makes vacuum degree in defoaming device be maintained at 5~50KPa of absolute pressure；Start the speed regulation device of centrifugation apparatus
4, setting rotating speed is 200~2000r/min, and inclined heated plate is set as 1~20min；
S4. after the completion of deaeration, material storage device 5 is delivered to by 1 discharge port of centrifugation apparatus outer barrel, then via discharging
Device 6 is delivered to hypomere spinning process and continuous defoaming can be realized.
Embodiment six
The present embodiment is further limiting for above-described embodiment five, Cord blood temperature described in step S1 described in the present embodiment
It it is -5~10 DEG C, the holding time is 0~1h.
Embodiment seven
The present embodiment is further limiting for above-described embodiment five or embodiment six, low described in step S3 described in the present embodiment
The temperature of warm cooling cycle temperature control device 10 is -10~10 DEG C.
Embodiment eight
The present embodiment is the further limiting to any embodiment of embodiment seven of above-described embodiment five, the present embodiment institute
The temperature for stating sub-cooled cycle temperature control device 10 described in step S3 is 0~10 DEG C.
Embodiment nine
The present embodiment is the further limiting to any embodiment of embodiment eight of above-described embodiment five, the present embodiment institute
It is 5~20Kpa to state defoaming device described in step S3 and be evacuated to absolute pressure.
Embodiment ten
The present embodiment is the further limiting to any embodiment of embodiment nine of above-described embodiment five, the present embodiment institute
4 rotating speed of speed regulation device for stating centrifugation apparatus described in step S3 is 500~2000r/min, and inclined heated plate is 1~10min.
Embodiment 11
The present embodiment be the further limiting to any embodiment of embodiment ten of above-described embodiment one, open in advance from
The sub-cooled of heart defoaming device recycles temperature control device 10, and the temperature in defoaming device is made to be cooled to 0 DEG C.It is 380 by the degree of polymerization
Drying wood pulps powder be dissolved in sodium hydroxide, urea and water composition in the mixed solvent, it is molten to obtain transparent cellulose
Liquid.Content of cellulose is 7% in cellulose solution obtained.After the solution to be kept the temperature at 0 DEG C to storage 20min again, via from
The inlet tube 3 of heart defoaming device is delivered in its material placement plate 7.Start centrifugation apparatus pressure control device 9, deaeration is made to fill
It sets interior vacuum degree and is maintained at absolute pressure 10KPa；Start centrifugation apparatus speed regulation device 4, setting speed 2000r/min, setting
Time is 3min, and deaeration is carried out to the cellulose solution in material barrel 2.Spinning solution after the completion of deaeration goes out via centrifugation motor spindle
Material mouth is delivered to material storage device 5, is then delivered to hypomere spinning process via drawing mechanism 6.
Embodiment 12
The present embodiment be the further limiting to any embodiment of embodiment ten of above-described embodiment one, open in advance from
The sub-cooled of heart defoaming device recycles temperature control device 10, and the temperature in defoaming device is made to be cooled to 5 DEG C.It is 600 by the degree of polymerization
Drying Cotton Pulp powder be dissolved in sodium hydroxide, urea and water composition in the mixed solvent, it is molten to obtain transparent cellulose
Liquid.Content of cellulose is 6% in cellulose solution obtained.After the solution to be kept the temperature at 5 DEG C to storage 30min again, via from
The inlet tube 3 of heart defoaming device is delivered in its object material placement plate 7.Start centrifugation apparatus pressure control device 9, makes deaeration
Vacuum degree is maintained at absolute pressure 12KPa in device；Start centrifugation apparatus speed regulation device 4, setting speed 2000r/min, if
It is 5min to set the time, and deaeration is carried out to the cellulose solution in material barrel 2.Spinning solution after the completion of deaeration is via centrifugation motor spindle
Discharge port is delivered to material storage device 5, is then delivered to hypomere spinning process via drawing mechanism 6.
Embodiment 13
The present embodiment be the further limiting to any embodiment of embodiment ten of above-described embodiment one, open in advance from
The sub-cooled of heart defoaming device recycles temperature control device 10, and the temperature in defoaming device is made to be cooled to 5 DEG C.It is 500 by the degree of polymerization
Drying wood pulps powder be dissolved in sodium hydroxide, thiocarbamide and water composition in the mixed solvent, it is molten to obtain transparent cellulose
Liquid.Content of cellulose is 5.5% in cellulose solution obtained.After the solution to be kept the temperature to storage 20min at 0 DEG C again, via
The inlet tube 3 of evacuation and centrifugal degassing device is delivered in its material placement plate 7.Start centrifugation apparatus pressure control device 9, makes deaeration
Vacuum degree is maintained at absolute pressure 12KPa in device；Start centrifugation apparatus speed regulation device 4, setting speed 2000r/min, if
It is 3min to set the time.Deaeration is carried out to the cellulose solution in material barrel 2.Spinning solution after the completion of deaeration is via centrifugation motor spindle
Discharge port is delivered to material storage device 5, is then delivered to hypomere spinning process via drawing mechanism 6.
Embodiment 14
The present embodiment be the further limiting to any embodiment of embodiment ten of above-described embodiment one, open in advance from
The sub-cooled of heart defoaming device recycles temperature control device 10, and the temperature in defoaming device is made to be cooled to 3 DEG C.It is 460 by the degree of polymerization
Drying bamboo pulp powder be dissolved in sodium hydroxide, thiocarbamide and water composition in the mixed solvent, it is molten to obtain transparent cellulose
Liquid.Content of cellulose is 4.5% in cellulose solution obtained.After the solution to be kept the temperature to storage 10min at 0 DEG C again, via
The inlet tube 3 of evacuation and centrifugal degassing device is delivered in its material placement plate 7.Start centrifugation apparatus pressure control device 9, makes deaeration
Vacuum degree is maintained at absolute pressure 15KPa in device；Start centrifugation apparatus speed regulation device 4, setting speed 1000r/min, if
It is 5min to set the time, and deaeration is carried out to the cellulose solution in material barrel 2.Spinning solution after the completion of deaeration is via centrifugation motor spindle
Discharge port is delivered to material storage device 5, is then delivered to hypomere spinning process via drawing mechanism 6.
Embodiment 15
The present embodiment be the further limiting to any embodiment of embodiment ten of above-described embodiment one, open in advance from
The sub-cooled of heart defoaming device recycles temperature control device 10, and the temperature in defoaming device is made to be cooled to 5 DEG C.It is 380 by the degree of polymerization
Drying wood pulps powder be dissolved in sodium hydroxide, urea and water composition in the mixed solvent, it is molten to obtain transparent cellulose
Liquid.Content of cellulose is 3.5% in cellulose solution obtained.After the solution to be kept the temperature to storage 10min at 5 DEG C again, via
The inlet tube 3 of evacuation and centrifugal degassing device is delivered in its material placement plate 7.Start centrifugation apparatus pressure control device 9, makes deaeration
Vacuum degree is maintained at absolute pressure 10KPa in device；Start centrifugation apparatus speed regulation device 4, setting speed 800r/min, setting
Time is 5min, and deaeration is carried out to the cellulose solution in material barrel 2.Spinning solution after the completion of deaeration goes out via centrifugation motor spindle
Material mouth is delivered to material storage device 5, is then delivered to hypomere spinning process via drawing mechanism 6.
Embodiment 16
The drying wood pulps powder that the degree of polymerization is 500 is dissolved in the mixed solvent of sodium hydroxide, urea and water composition
In, prepare the cellulose solution that content of cellulose is 5.5%.The cellulose solution of preparation is used into intermittent reduced pressure defoaming device
Deaeration processing is carried out, the spinning for obtaining the spinning solution that this comparative example 1 obtains with embodiment 11,12,13,14,15 after the completion of deaeration
Silk liquid is compared, and the results are shown in Table 1.
Table 1：
In conclusion the utility model discloses a kind of defoaming device and method for cellulose solution, it is especially suitable
In the deaeration technique process of low-temperature alkaline/urea method cellulose solution.The utility model is that urea or sulphur is added in cellulose pulp
The in the mixed solvent of urea, alkali metal hydroxide and water composition, obtains uniform cellulose solution, so through low temperature continuous-dissolution
Deaeration is carried out to cellulose solution using defoaming device described in the utility model afterwards, is sprayed via spinneret and solidifies processing and obtain
Cellulose fibre.The utility model is related to defoaming device and method solve cellulose solution prepared by low-temperature alkaline/urea method
The problem of easy gelation in deaeration has many advantages, such as that deaeration is efficient, effect is good, simple in structure, low cost, can realize fast
Speed, continuous defoaming, improve production efficiency, are convenient for industrialization promotion and continuous production.
According to the defoaming device and method of cellulose solution described in the utility model, after starting centrifugal device, due to fibre
The plain solution of dimension is different from the density of bubble, keeps the centrifugal force suffered by it different, therefore solution and bubble are detached.
Under the negative pressure of vacuum effect of defoaming device described in the utility model, the cellulose solution in material placement plate 7
Internal minute bubbles are set to shift to its surface, and further puffing, diffusion simultaneously removes rapidly, greatly improves deaeration efficiency.
Meanwhile driving material barrel 2 and material placement plate 7 to make centrifugation circular motion in outer barrel 1 by motor, cellulose is molten
Liquid is omnidirectional to be got rid of to 2 inner wall of material barrel, and is disperseed to get rid of by equally distributed aperture on conical shell under the action of the centrifugal force
To 1 inner wall of the outer barrel, de-aeration is completed.Spinning solution after deaeration flows to the material storage by discharge port downwards by dead weight
Then cryopreservation device 5 is delivered to next workshop section via drawing mechanism 6 and continuous defoaming can be realized.
Under the low-temperature protection of defoaming device described in the utility model, cellulose solution low-temperature treatment and de- in deaeration
Temperature change is smaller in low temperature transmission process after bubble, and inclined heated plate is shorter, is effectively prevented while ensuring deaeration effect
Since temperature raises in deaeration, the gelatin phenomenon caused by cellulolytic activity enhancing improves spinning solution quality to spinning solution.
In the instructions provided here, numerous specific details are set forth.It is to be appreciated, however, that the utility model
Embodiment can be put into practice without these specific details.In some instances, be not been shown in detail well known method,
Structure and technology, so as not to obscure the understanding of this description.
Similarly, it should be understood that in order to simplify the disclosure and help to understand one or more in each utility model aspect
It is a, above in the description of the exemplary embodiment of the utility model, each feature of the utility model is divided together sometimes
In group to single embodiment, figure or descriptions thereof.However, the method for the disclosure should be construed to reflect following meaning
Figure：The requires of the utility model features more more than the feature being expressly recited in each claim i.e. claimed.
More precisely, being as reflected in the following claims, in terms of utility model single less than disclosed above
All features of embodiment.Therefore, it then follows thus claims of specific implementation mode are expressly incorporated in the specific embodiment party
Formula, wherein separate embodiments of each claim as the utility model itself.
Other than such feature and/or at least some of process or unit exclude each other, it may be used and appoint
What combination is disclosed to all features disclosed in this specification (including adjoint claim, abstract and attached drawing) and so
All processes or unit of any method or equipment are combined.Unless expressly stated otherwise, this specification is (including adjoint
Claim, abstract and attached drawing) disclosed in each feature can by provide the alternative features of identical, equivalent or similar purpose Lai
Instead of.
In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other embodiments
In included certain features rather than other feature, but the combination of the feature of different embodiments means in this practicality newly
Within the scope of type and form different embodiments.For example, in the following claims, embodiment claimed
One of arbitrary mode can use in any combination.
The utility model is limited it should be noted that above-described embodiment illustrates rather than the utility model,
And those skilled in the art can design alternative embodiment without departing from the scope of the appended claims.In right
In it is required that, any reference mark between bracket should not be configured to limitations on claims.Word "comprising" is not arranged
Except there are element or steps not listed in the claims.Word "a" or "an" before element does not exclude the presence of more
A such element.In the unit claims listing several devices, several in these devices can be by same
One hardware branch embodies.The use of word first, second, and third does not indicate that any sequence.It can be by these lists
Word is construed to title.
The above is only the preferred embodiment of the utility model, not makees in any form to the utility model
Limitation is not limited to the utility model although the utility model has been disclosed with preferred embodiment as above, any to be familiar with
The technical staff of this patent is not departing within the scope of technical solutions of the utility model, when the technology contents work using above-mentioned prompt
Go out a little change or is modified to the equivalent embodiment of equivalent variations, as long as being the content without departing from technical solutions of the utility model,
Any simple modification, equivalent change and modification made by the above technical examples according to the technical essence of the present invention, still belong to
In the range of the utility model.
Claims (10)
1. a kind of defoaming device of cellulose solution, it is characterised in that：Including outer barrel (1), it is configured to the main body of defoaming device, institute
It states outer barrel (1) bottom and is provided with liquid outlet；Material barrel (2) is configured at the inside of outer barrel (1), is set on material barrel (2) cylinder
It is equipped with through-hole；Speed regulation device (4) is configured to that material barrel (2) is driven to do centrifugal movement；Inlet tube (3) passes through outer barrel (1), will be molten
Liquid is sent into material barrel (2)；Material storage device (5) is connected to the liquid outlet of outer barrel (1) bottom, and is configured at less than outer barrel
(1) position；Material storage device (5) bottom is connected with drawing mechanism (6).
2. a kind of defoaming device of cellulose solution according to claim 1, it is characterised in that：Including with outer barrel (1) and
Material storage device (5) connection pressure control device (9), and around outer barrel (1) and material storage device (5) setting it is low
Warm cooling cycle temperature control device (10).
3. a kind of defoaming device of cellulose solution according to claim 2, it is characterised in that：The pressure control device
(9) vacuum degree in defoaming device is made to be maintained at 5~50KPa of absolute pressure.
4. a kind of defoaming device of cellulose solution according to claim 1, it is characterised in that：On the material barrel (2)
Half part is cylinder, and lower half portion is tapered.
5. a kind of defoaming device of cellulose solution according to claim 4, it is characterised in that：The through-hole is set to cone
On the cylinder of shape part.
6. a kind of defoaming device of cellulose solution according to claim 5, it is characterised in that：It is set in the cylindrical tube
There is the material placement plate (7) that both ends are connected with cylindrical tube inner wall respectively.
7. a kind of defoaming device of cellulose solution according to claim 6, it is characterised in that：The material placement plate
(7) solution of inlet tube (3) feeding is held.
8. according to a kind of defoaming device of any cellulose solution of claim 4 to 7, it is characterised in that：The outer barrel
(1) inner surface of bottom is an inclined surface, and liquid outlet is configured at the lowermost end of inclined surface.
9. a kind of defoaming device of cellulose solution according to claim 1, it is characterised in that：The outer barrel (1) it is interior
Wall is equipped with the component for having guide functions to solution.
10. a kind of defoaming device of cellulose solution according to claim 9, it is characterised in that：The guide functions
Component is deflector or diversion trench or smooth inner wall.
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| CN201721839229.XU CN207919028U (en) | 2017-12-25 | 2017-12-25 | A kind of defoaming device of cellulose solution |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109537066A (en) * | 2018-12-19 | 2019-03-29 | 四川辉腾科技股份有限公司 | A kind of defoaming device and defoaming method for aramid IIII fiber spinning solution |
| CN109957844A (en) * | 2017-12-25 | 2019-07-02 | 中国纺织科学研究院有限公司 | A kind of defoaming method of the defoaming device of cellulose solution and the device |
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2017
- 2017-12-25 CN CN201721839229.XU patent/CN207919028U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109957844A (en) * | 2017-12-25 | 2019-07-02 | 中国纺织科学研究院有限公司 | A kind of defoaming method of the defoaming device of cellulose solution and the device |
| CN109537066A (en) * | 2018-12-19 | 2019-03-29 | 四川辉腾科技股份有限公司 | A kind of defoaming device and defoaming method for aramid IIII fiber spinning solution |
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