CN109731561A - De-oiling desorption column feeding device and its process after a kind of silica gel absorption - Google Patents
De-oiling desorption column feeding device and its process after a kind of silica gel absorption Download PDFInfo
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- CN109731561A CN109731561A CN201910124280.XA CN201910124280A CN109731561A CN 109731561 A CN109731561 A CN 109731561A CN 201910124280 A CN201910124280 A CN 201910124280A CN 109731561 A CN109731561 A CN 109731561A
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Abstract
The present invention relates to de-oiling desorption column feeding device and its process after a kind of silica gel absorption, which includes desorption column, feeding device and material circulation device.Gujiao City is pumped into desorption column by Pulp pump by setting feeding device and material circulation device by the present invention, simplifies the operation of silica gel feeding, facilitate a large amount of feedings, improve the working efficiency of device, while can be realized and raw material is recycled, it reduces environmental pollution, reduces cost；In addition, making silica gel, with serpentine line-of-road movement, extend residence time of the silica gel in desorption column in desorption column, improve silica gel de-oiling efficiency by the way that multilayer circulation scraper plate and fixed plate are arranged in desorption column.
Description
Technical field
The invention belongs to silica regeneration technical fields, and in particular to after a kind of silica gel absorption de-oiling desorption column feeding device and
Its process.
Background technique
Currently, traditional technology, which regenerates II class base oil, to be completed by hydrogenation technique, there are safety and stability for this method
The defects of property is poor, at high cost, equipment investment is big.It recent studies have shown that, absorption extracting can be carried out by adsorbents such as silica gel and is obtained
II class base oil must be regenerated, since the polarity of silica gel is stronger, undesirable components in adsorbable waste lubricating oil, after silica gel absorption its
Surface generally all can adhesion section lubricating oil, the gap between silica gel can also be mingled with parts of lubricating oil, these adsorpting lubrications oil
If silica gel directly as garbage disposal, not only causes certain pollution to environment, but also is also the waste to resource.This method
Middle adsorbent in use for some time, will be saturated, and can not continue to adsorb.Currently, traditional silica regeneration method, generally all
It is to be realized by calcining, although the method is simple, silica gel is regenerated there is no the method using science, green,
There is no realizations to recycle to resource, and equipment energy consumption is big, and feeding difficulty is big, cannot achieve a large amount of de-oilings behaviour of silica gel
Make, is not optimal adsorbent reactivation device and method.Therefore, design and develop a kind of scientific and reasonable, environmentally protective, solution
Certainly a large amount of feeding problems of silica gel, can be improved adsorbent reactivation efficiency and can reach to the recycling function of whole resource
The regenerated device of de-oiling has important economy, society, the value of environmental protection and realistic meaning after adsorbent absorption.
Summary of the invention
The object of the invention is that solve the above-mentioned problems and to provide a kind of structure simple, design a kind of reasonable silicon
De-oiling desorption column feeding device and its process after glue absorption.
The present invention through the following technical solutions to achieve the above objectives:
De-oiling desorption column feeding device after a kind of silica gel absorption, including desorption column, feeding device and material circulation device, institute
It states desorption column surface and is provided with several material import and exports, including the solvent outlet on adsorption tower top is arranged in, silica gel exports and divides
Silica gel entrance, the colvent inlet of adsorption tower side surface upper and lower side are not set；Adsorption tower inner cavity top is provided with resistance
Filter；The adsorption tower inner hub location is vertically arranged with the rotation axis through the barrier net, and the rotation axis is by being arranged
Motor a on the adsorption tower top drives, and the rotation axis is disposed with several scrapers from top to bottom, and the scraper includes
Upper layer scraper and lower layer's scraper are provided with fixed plate below the scraper, and the fixed plate center is provided with through-hole,
The desorption column is that a group parts are circularly set inside it with upper layer scraper and lower layer's scraper；
The feeding device includes the kettle that is stirred that the desorption column side is arranged in, and described be stirred on kettle is arranged
There are several feed inlet and outlets, the outlet being stirred below kettle is connect by conduit with Pulp pump, and the Pulp pump is by leading
Pipe is connected to the silica gel entrance in the desorption column；
The material circulation device includes the separator with the silica gel outlet of the desorption column lower end, the separation
The outlet end of device is connect by conduit with No.1 aspiration pump, and the colvent inlet on the No.1 aspiration pump and the desorption column connects
It is logical；The material circulation device further includes the temporary storage tank that the desorption column side is arranged in, and the input end of the temporary storage tank passes through
Conduit is connected to the solvent outlet of the desorption column upper end, and the outlet end of the temporary storage tank is connected by conduit and No. two exhaust fans
It connects, No. two exhaust fans are connected to the input end for being stirred kettle.
By using above-mentioned technical proposal, silica gel is delivered in desorption column by Pulp pump, is grasped convenient for the feeding of silica gel
Make, and can be realized a large amount of feedings of silica gel, and the device realizes the recycling of solvent by material circulation device and takes off
The separation of attached oil recycles, and realizes the regeneration of silica gel, improves the utilization efficiency of raw material, reduce environmental pollution, also improve
Silica regeneration quality.
As a further optimization solution of the present invention, the scraper includes several cambered blades, the arc of the upper layer scraper
Shape blade bending direction is consistent with the direction of rotation of rotation axis, the bending direction of lower layer's scraper cambered blade and rotation axis
Direction of rotation is opposite.
By using above-mentioned technical proposal, transport silica gel centripetal or centrifugal movement and downwards under the action of upper and lower level scraper
It is dynamic.
As a further optimization solution of the present invention, the fixed plate below the upper layer scraper and the desorption inner wall of tower are solid
Fixed to connect and be in close contact, the through-hole of the fixed plate center below the upper layer scraper is cut with round blanking horizontally outward
Mouthful, the feed opening diameter is greater than the rotation shaft diameter；Fixed plate and the desorption inner wall of tower below lower layer's scraper
It is fixedly connected by several fixed links, the fixed plate and desorption inner wall of tower approximated position are provided with gap.
By using above-mentioned technical proposal, silica gel is made to carry out the movement of serpentine track in desorption column, extends silica gel and be desorbed
Residence time in tower improves silica gel de-oiling efficiency.
As a further optimization solution of the present invention, the ratio of height to diameter of the desorption column is 5-8:1, the desorption column lowest level
Scraper is upper layer blade construction.
By using above-mentioned technical proposal, the height of adsorption tower is sufficiently high, is that silica gel de-oiling is more thorough.
As a further optimization solution of the present invention, it is scraped in the silica gel approach axis of the silica gel entrance and the desorption column
The direction of rotation of knife is tangent.
By using above-mentioned technical proposal, reduces resistance when silica gel enters desorption column, facilitate blanking.
The process of de-oiling desorption column feeding device after a kind of silica gel absorption as described above, comprising the following steps:
S1: silica gel feeding after absorption
Silica gel after absorption is delivered to and is stirred in kettle, silica gel inputs after being adsorbed by Pulp pump while agitating
In desorption column；
S2: silica gel is desorbed after absorption
Nmp solvent inputs desorption column in proportion, silica gel under the action of the scraper of upper layer, from the center discharge port of fixed plate to
Lower movement flows to desorption column lower end by the feed opening of fixed plate periphery, and circuit sequentially, makes silicon under the action of lower layer's scraper
The motion profile of glue is serpentine；
S3: Matter Transfer utilizes
Silica gel enters separator after desorption, and the solvent isolated is pumped into desorption column again and is recycled, silicon after desorption
The dry regeneration of glue；The solvent of solvent outlet output partially pumps under the action of temporary storage tank and No. two aspiration pumps with base oil mixed liquor
Enter to be stirred in kettle, recycle.
As a further optimization solution of the present invention, solvent is NMP in the step S2, and the NMP enters desorption column
Except wet temp is maintained at 160-180 DEG C, the ratio of the silica gel and solvent is 1:1-2.
As a further optimization solution of the present invention, the solvent Yu base oil mixed liquor of solvent outlet in the step S3
Temperature is maintained at 80-100 DEG C.
The beneficial effects of the present invention are:
1) silica gel is pumped into desorption column by Pulp pump by setting feeding device and material circulation device by the present invention, is simplified
The operation of silica gel feeding, facilitates a large amount of feedings, improves the working efficiency of device, while can be realized and recycle to raw material,
It reduces environmental pollution, reduces cost；
2) present invention makes silica gel in desorption column with " S " by the way that multilayer circulation scraper plate and fixed plate are arranged in desorption column
Shape line-of-road movement extends residence time of the silica gel in desorption column, improves silica gel de-oiling efficiency；
3) the configuration of the present invention is simple, stability is high, and design rationally, is easy to implement.
Detailed description of the invention
Fig. 1 is process flow chart of the invention；
Fig. 2 is desorption column structural schematic diagram of the invention；
Fig. 3 is the structural schematic diagram of the scraper part at the middle and upper levels Fig. 1；
Fig. 4 is the structural schematic diagram of Tu1Zhong lower layer scraper part.
In figure: 1, desorption column；2, separator；3, it is stirred kettle；4, temporary storage tank；11, motor a；12, silica gel entrance；
13, solvent outlet；14, net is obstructed；15, rotation axis；16, scraper；17, fixed plate；18, colvent inlet；19, silica gel exports；21,
No.1 aspiration pump；31, Pulp pump；41, No. two aspiration pumps；171, feed opening；172, fixed link.
Specific embodiment
The application is described in further detail with reference to the accompanying drawing, it is necessary to it is indicated herein to be, implement in detail below
Mode is served only for that the application is further detailed, and should not be understood as the limitation to the application protection scope, the field
Technical staff can make some nonessential modifications and adaptations to the application according to above-mentioned application content.
Embodiment 1
As shown in Figs 1-4, de-oiling desorption column feeding device after a kind of silica gel absorption, including desorption column 1, feeding device and object
Expect that circulator, the desorption column 1 are column, surface is provided with several material import and exports, including is arranged on adsorption tower top
Solvent outlet 13 and be separately positioned on silica gel entrance 12, the colvent inlet 18 of adsorption tower side surface upper and lower side, the suction
Attached tower bottom end is additionally provided with silica gel outlet 19, to realize the charging draw operation of material；The setting of adsorption tower inner cavity top
There is barrier net 14 to avoid silica gel from being escaped from by solvent outlet 13 for obstructing silica gel particle；The adsorption tower inner hub location is perpendicular
It is directly provided with the rotation axis 15 through the barrier net 14, the rotation axis 15 is by being arranged in the motor on the adsorption tower top
A11 driving, the rotation axis 15 are disposed with several scrapers 16 from top to bottom, and the scraper 16 includes upper layer scraper and lower layer
Scraper, the scraper 16 include several cambered blades, cambered blade bending direction and the rotation axis 15 of the upper layer scraper 16
Direction of rotation is consistent, and the bending direction of lower layer's scraper cambered blade and the direction of rotation of rotation axis 15 are on the contrary, the scraper
16 lower section is provided with fixed plate 17, and 17 center of fixed plate is provided with through-hole, so that rotation axis 15 is across each solid
Fixed board 17, the fixed plate 17 below the upper layer scraper are fixedly connected and are in close contact, the upper layer with 1 inner wall of desorption column
The through-hole of 17 center of fixed plate below scraper is cut with round feed opening 171,171 diameter of feed opening horizontally outward
Greater than 15 diameter of rotation axis, circulate in desorption column 1 convenient for silica gel；Fixed plate 17 below lower layer's scraper with it is described
1 inner wall of desorption column is fixedly connected by several fixed links 172, and the fixed plate 17 is provided with 1 inner wall approximated position of desorption column
Gap, so that silica gel is flowed downward by interstitial site, the desorption column 1 is a group parts at it with upper layer scraper and lower layer's scraper
Inside is circularly set, and the ratio of height to diameter of the desorption column 1 is 5-8:1, and the 1 lowest level scraper of desorption column is set as upper layer scraper knot
Structure.
The feeding device include 1 side of desorption column is set be stirred kettle 3, it is described to be stirred on kettle 3
Several feed inlet and outlets are provided with, the outlet for being stirred 3 lower section of kettle is connect by conduit with Pulp pump 31, the Pulp pump
31 are connected to by conduit with the silica gel entrance 12 in the desorption column 1, will be stirred the absorption inside kettle 3 by Pulp pump 31
Silica gel is delivered in desorption column 1 afterwards, to complete feeding.
The material circulation device includes the separator 2 being connected to the silica gel of 1 lower end of desorption column outlet 19, described
The outlet end of separator 2 is connect by conduit with No.1 aspiration pump 21, on the No.1 aspiration pump 21 and the desorption column 1
Another colvent inlet 18 is connected to, and the solvent that separator 2 is isolated is delivered to desorption again by the No.1 aspiration pump 21
It is recycled in tower 1；The material circulation device further includes the temporary storage tank 4 that 1 side of desorption column is arranged in, described temporary
The input end for depositing tank 4 is connected to by conduit with the solvent outlet 13 of 1 upper end of desorption column, and the outlet end of the temporary storage tank 4 is logical
It crosses conduit to connect with No. two exhaust fans, No. two exhaust fans are connected to the input end for being stirred kettle 3, by desorption column 1
The solvent of output and the mixed liquor part of base oil are delivered to and are stirred in kettle 3, make silica gel solvent and oil under the action of be
Silica gel is pumped into desorption column 1 by mobile phase convenient for Pulp pump 31, and realization recycles solvent.
It should be noted that the rotation of the silica gel approach axis of the silica gel entrance 12 and scraper 16 in the desorption column 1
Direction is tangent, reduces the resistance of silica gel charging.
A kind of process according to de-oiling desorption column feeding device after silica gel absorption described above, including following step
It is rapid:
S1: silica gel feeding after absorption
Silica gel after absorption is delivered to and is stirred in kettle 3, silica gel after being adsorbed by Pulp pump 31 while agitating
It inputs in desorption column 1；
S2: silica gel is desorbed after absorption
Nmp solvent enters desorption column 1 by colvent inlet 18 in proportion, and silica gel in desorption column 1 by flowing from above to below, upper
It under the turning effort of layer scraper, is moved downward by the center discharge port of fixed plate 17, under the turning effort of lower layer's scraper, by solid
The feed opening 171 of 17 periphery of fixed board flows to 1 lower end of desorption column, and circuits sequentially, and makes the motion profile serpentine of silica gel, extends
Silica gel residence time in desorption column 1, the effect for promoting silica gel and being desorbed between solvent NMP make silica gel de-oiling；
S3: Matter Transfer utilizes
Silica gel enters the separator 2 of its lower end after desorption, and the solvent isolated is pumped into circulation in desorption column 1 again to be made
With silica dehydrator regenerates after desorption；The solvent and base oil mixed liquor that solvent outlet 13 exports are in temporary storage tank 4 and No. two aspiration pumps
It is partially pumped into and is stirred in kettle 3 under the action of 41, realize that Matter Transfer utilizes.
Solvent is NMP (methyl pyrrolidone) in the step S2, and the ratio of the silica gel and solvent is 1:1-2, described
The wet temp that removes that NMP enters desorption column 1 is maintained at 160-180 DEG C；The solvent and base oil of solvent outlet 13 in the step S3
The temperature of mixed liquor is maintained at 80-100 DEG C.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.
Claims (8)
1. de-oiling desorption column feeding device after a kind of silica gel absorption, it is characterised in that: including desorption column (1), feeding device and object
Expect circulator, desorption column (1) surface is provided with several material import and exports, and the solvent including adsorption tower top is arranged in goes out
Mouth (13), silica gel export (19) and are separately positioned on the silica gel entrance (12) of adsorption tower side surface upper and lower side, colvent inlet
(18)；Adsorption tower inner cavity top is provided with barrier net (14)；The adsorption tower inner hub location, which is vertically arranged with, to be run through
The rotation axis (15) of barrier net (14), the rotation axis (15) are driven by the motor a (11) that the adsorption tower top is arranged in
Dynamic, the rotation axis (15) is disposed with several scrapers (16) from top to bottom, and the scraper (16) includes upper layer scraper under
Layer scraper, is provided with fixed plate (17) below the scraper (16), and fixed plate (17) center is provided with through-hole,
The desorption column (1) is that a group parts are circularly set inside it with upper layer scraper and lower layer's scraper；
The feeding device includes setting being stirred kettle (3) in the desorption column (1) side, described to be stirred kettle (3)
On be provided with several feed inlet and outlets, the outlet being stirred below kettle (3) is connect by conduit with Pulp pump (31), described
Pulp pump (31) is connected to by conduit with the silica gel entrance (12) on the desorption column (1)；
The material circulation device includes the separator (2) being connected to the silica gel of the desorption column (1) lower end outlet (19), institute
The outlet end for stating separator (2) is connect by conduit with No.1 aspiration pump (21), and the No.1 aspiration pump (21) takes off with described
Colvent inlet (18) connection on attached tower (1)；The material circulation device further includes being arranged in the temporary of the desorption column (1) side
It deposits tank (4), the input end of the temporary storage tank (4) is connected to by conduit with the solvent outlet (13) of the desorption column (1) upper end, institute
The outlet end for stating temporary storage tank (4) is connect by conduit with No. two exhaust fans, and No. two exhaust fans are stirred kettle (3) with described
Input end connection.
2. de-oiling desorption column feeding device after a kind of silica gel absorption according to claim 1, it is characterised in that: the scraper
It (16) include several cambered blades, the cambered blade bending direction of the upper layer scraper and the direction of rotation one of rotation axis (15)
It causes, the bending direction of lower layer's scraper cambered blade is opposite with the direction of rotation of rotation axis (15).
3. de-oiling desorption column feeding device after a kind of silica gel absorption according to claim 1, it is characterised in that: the upper layer
Fixed plate (17) below scraper is fixedly connected and is in close contact with the desorption column (1) inner wall, below the upper layer scraper
The through-hole of fixed plate (17) center is cut with round feed opening (171) horizontally outward, and feed opening (171) diameter is greater than
Rotation axis (15) diameter；Fixed plate (17) below lower layer's scraper with the desorption column (1) if inner wall pass through it is solid
Fixed pole (172) is fixedly connected, and the fixed plate (17) and desorption column (1) inner wall approximated position are provided with gap.
4. de-oiling desorption column feeding device after a kind of silica gel absorption according to claim 1, it is characterised in that: the desorption
The ratio of height to diameter of tower (1) is 5-8:1, and desorption column (1) the lowest level scraper is upper layer blade construction.
5. de-oiling desorption column feeding device after a kind of silica gel absorption according to claim 1, it is characterised in that: the silica gel
The silica gel approach axis of entrance (12) and the direction of rotation of the desorption column (1) interior scraper (16) are tangent.
6. the process of de-oiling desorption column feeding device, feature exist after a kind of silica gel absorption as claimed in claims 1-5
In, comprising the following steps:
S1: silica gel feeding after absorption
Silica gel after absorption is delivered to and is stirred in kettle (3), silica gel after being adsorbed by Pulp pump (31) while agitating
It inputs in desorption column (1)；
S2: silica gel is desorbed after absorption
Nmp solvent inputs desorption column (1) in proportion, and silica gel is discharged under the action of the scraper of upper layer by the center of fixed plate (17)
Mouth moves downward, and under the action of lower layer's scraper, flows to desorption column (1) lower end by the feed opening (171) of fixed plate (17) periphery,
And circuit sequentially, make the motion profile serpentine of silica gel；
S3: Matter Transfer utilizes
Silica gel enters separator (2) after desorption, and the solvent isolated is pumped into desorption column (1) again and is recycled, after desorption
Silica dehydrator regeneration；The solvent and base oil mixed liquor of solvent outlet (13) output are in temporary storage tank (4) and No. two aspiration pumps (41)
Under the action of be partially pumped into and be stirred in kettle (3), recycle.
7. the process of de-oiling desorption column feeding device, feature exist after a kind of silica gel absorption according to claim 6
In: solvent is NMP in the step S2, and the wet temp that removes that the NMP enters desorption column (1) is maintained at 160-180 DEG C, the silicon
The ratio of glue and solvent is 1:1-2.
8. the process of de-oiling desorption column feeding device, feature exist after a kind of silica gel absorption according to claim 6
In: the solvent of solvent outlet (13) and the temperature of base oil mixed liquor are maintained at 80-100 DEG C in the step S3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910124280.XA CN109731561B (en) | 2019-02-19 | 2019-02-19 | Feeding device of deoiling and desorbing tower after silica gel adsorption and process method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910124280.XA CN109731561B (en) | 2019-02-19 | 2019-02-19 | Feeding device of deoiling and desorbing tower after silica gel adsorption and process method thereof |
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| CN109731561A true CN109731561A (en) | 2019-05-10 |
| CN109731561B CN109731561B (en) | 2023-08-22 |
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| CN201910124280.XA Active CN109731561B (en) | 2019-02-19 | 2019-02-19 | Feeding device of deoiling and desorbing tower after silica gel adsorption and process method thereof |
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| Publication number | Publication date |
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| CN109731561B (en) | 2023-08-22 |
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