CN115926836B - Hydrotreatment process for preparing food-grade white oil - Google Patents
Hydrotreatment process for preparing food-grade white oil Download PDFInfo
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- CN115926836B CN115926836B CN202211342440.6A CN202211342440A CN115926836B CN 115926836 B CN115926836 B CN 115926836B CN 202211342440 A CN202211342440 A CN 202211342440A CN 115926836 B CN115926836 B CN 115926836B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 39
- 210000001503 joint Anatomy 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 30
- 239000010959 steel Substances 0.000 claims description 30
- 239000012535 impurity Substances 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 229910001385 heavy metal Inorganic materials 0.000 claims description 3
- 238000005984 hydrogenation reaction Methods 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- 239000011593 sulfur Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 32
- 230000009286 beneficial effect Effects 0.000 abstract description 10
- 238000002360 preparation method Methods 0.000 abstract description 2
- 210000003128 head Anatomy 0.000 description 16
- 238000003032 molecular docking Methods 0.000 description 9
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000001360 synchronised effect Effects 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000004891 communication Methods 0.000 description 4
- 239000002537 cosmetic Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000002775 capsule Substances 0.000 description 2
- 238000004517 catalytic hydrocracking Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000003974 emollient agent Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 210000005077 saccule Anatomy 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P30/00—Technologies relating to oil refining and petrochemical industry
- Y02P30/20—Technologies relating to oil refining and petrochemical industry using bio-feedstock
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- Edible Oils And Fats (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to the technical field of food-grade white oil preparation, in particular to a hydrotreatment process for preparing food-grade white oil, which comprises a support frame, wherein a sliding block is slidably arranged on the side surface of the support frame, the surface of the sliding block is fixedly connected with a support plate, an adjusting component is arranged in the support frame, the right side of the adjusting component is connected with a fixing rod, a butt joint component is arranged on the right side of the fixing rod, a capillary viscometer is arranged in the butt joint component, and a lap joint block is fixedly arranged on the surface of the support frame. The beneficial effects of the invention are as follows: the hydrotreatment process for preparing the food-grade white oil is improved on the basis of the prior art, the capillary viscometer can automatically generate negative pressure by the negative pressure component in the rotating process, so that the capillary viscometer can suck the white oil in the container through the top end of the capillary viscometer, and meanwhile, the device can keep the tube head on the capillary viscometer closed during the rotation of the capillary viscometer and can also automatically lift the container.
Description
Technical Field
The invention relates to the technical field of food-grade white oil preparation, in particular to a hydrotreating process for preparing food-grade white oil.
Background
Food-grade white oil is commonly used in the fields of food processing, cosmetic manufacturing, pharmacy and the like, and an HT high-pressure hydrocracking process is adopted, so that the food-grade white oil can be used as a food release agent in food processing, can be used as an emollient in the cosmetic industry, can be used as a release agent for capsule production in the pharmaceutical industry, and has some problems in food-grade white oil hydrotreatment.
The existing white oil hydrotreating process cannot quickly re-extract the taken white oil and pour the white oil into the capillary viscometer in the white oil production process, needs to manually press a through hole at one end of the capillary viscometer, then sucks the white oil by using an ear suction ball, is inconvenient to operate, cannot solve the problem at one time, cannot realize the function of automatically sucking the white oil under negative pressure in the process of turning the capillary viscometer in the operation process, cannot automatically lift a white oil container in the process of turning the capillary viscometer, and has insufficient functionality.
Disclosure of Invention
The invention aims at the technical problems in the prior art, and provides a hydrotreating process for preparing food-grade white oil, which solves the problems that the existing white oil hydrotreating process can not realize the function of automatically sucking white oil under negative pressure in the process of turning a capillary viscometer and can not automatically lift a white oil container in the process of turning the capillary viscometer in the process of producing white oil.
The technical scheme for solving the technical problems is as follows: a hydrotreating process for preparing food-grade white oil, comprising the steps of:
A. feeding: the raw materials are sent to a hydrofining hydrotreating reactor for hydrotreating, and impurities in the hydrotreating reactor are removed before the reaction;
B. multistage hydrotreatment: removing sulfur, nitrogen, aromatic hydrocarbons and heavy metal impurities by heating and hydrogenating in a hydrotreating reactor;
C. extracting white oil: taking out part of hydrogenated white oil, preparing for kinematic viscosity detection, taking out the white oil, cooling the white oil to normal temperature, and removing part of the white oil by an extraction device;
D. kinematic viscosity detection: pouring white oil into a capillary viscometer for kinematic viscosity test, adjusting the viscometer to be in a vertical state, recording the flowing time of the viscometer, recording the average value of three times, and measuring and calculating the kinematic viscosity;
E. and (3) hydrotreating again: if the kinematic viscosity exceeds the standard, hydrogenation is carried out again to further take out impurities until the kinematic viscosity of the white oil reaches a proper range;
the extraction device in the hydrotreatment process step C for preparing the food-grade white oil comprises:
support frame, slider, backup pad and intercommunication groove, the side slidable mounting of support frame has the slider, the fixed surface of slider is connected with the backup pad, the internally mounted of support frame has adjusting part, adjusting part's right side is connected with the dead lever, butt joint subassembly is installed on the right side of dead lever, butt joint subassembly's internally mounted has the capillary viscometer, the fixed surface of support frame installs the overlap joint piece, the right side of overlap joint piece rotates installs the rubber ring, the inside laminating of rubber ring is provided with the tube head, be fixed connection between tube head and the capillary viscometer, the breach has been seted up at the top of rubber ring, negative pressure subassembly is installed to the below of overlap joint piece and butt joint subassembly.
The beneficial effects of the invention are as follows:
1) The hydrotreating process effect for preparing the food-grade white oil is better, the hydrotreating process effect is improved on the basis of the prior art, the butt joint assembly on the device is utilized to compress and fix the capillary viscometer, the negative pressure assembly can automatically generate negative pressure in the rotating process of the capillary viscometer, and the capillary viscometer can suck the white oil in the container through the top end of the capillary viscometer so as to carry out the subsequent kinematic viscosity detection work, thereby improving the functionality of the device, and solving the defects that the conventional hydrotreating device for preparing the white oil needs to manually press a through hole at one end of the capillary viscometer, then the suction ball is utilized to suck the white oil, and the operation is inconvenient.
2) The hydrotreating process effect for preparing the food-grade white oil is better, the device can also drive the adjusting component to rotate in the process of rotating the capillary viscometer, the size of the adjusting component can be adjusted, the size of the adjusting component can be correspondingly increased or reduced according to the size of the white oil container, the rising height of the white oil container can be adjusted in the rotating process of the capillary viscometer, the device can keep the tube head of the capillary viscometer closed when the capillary viscometer rotates, the container can be automatically lifted, and the height of the white oil container can be self-adapted.
On the basis of the technical scheme, the invention can be improved as follows.
Further, the adjustment assembly includes a first traction cable; the top fixedly connected with of slider pulls the steel cable, the top of first traction steel cable is connected with the extension board, the inside of extension board is provided with the rotary drum, the rotary drum rotates and installs in the inside of support frame, and the inside of rotary drum runs through and is provided with the slide bar, the front end and the extension board of slide bar link to each other, the left and right sides fixedly connected with fixed block of slide bar, the fixed block links to each other with the rotary drum through first spring, the inside left side fixed mounting of support frame has electric putter, electric putter's front end rotates and installs the commentaries on classics piece, it links to each other with the end of slide bar through the second traction steel cable to change the piece.
The technical scheme has the beneficial effects that the capillary tube can drive the extension plate and the rotary drum to rotate in the rotating process through the first traction steel rope on the device, and the first traction steel rope is wound on the extension plate so as to automatically lift the white oil container to perform white oil pumping work, so that the functionality of the device is improved
Further, be fixed connection between rotary drum and the dead lever, be rotatory connection between dead lever and the support frame, the extension board passes through electric putter, second and pulls between steel cable and slide bar and the rotary drum and constitutes extending structure.
The beneficial effect of adopting above-mentioned further scheme is, the extending plate can synchronous expansion or synchronous shrink through the extending structure on the device, and then when making the device can change rotary drum rotation single circle, the distance that white oil container moved to the white oil container of adaptation not unidimensional uses, has promoted the practicality of device.
Further, the docking assembly includes a first connection block; the right side fixedly connected with first connecting block of dead lever, be rotationally connected between first connecting block and the support frame, the right side fixedly connected with second connecting block of first connecting block, the right side sliding mounting of second connecting block has the third connecting block, and the equal fixedly connected with movable rod in side of third connecting block and second connecting block, the movable rod passes through the third spring and links to each other with second connecting block and third connecting block, the equal fixedly mounted rubber block in inside of second connecting block and third connecting block.
The adoption of the further scheme has the beneficial effects that the second connecting block and the third connecting block are tensioned through the third spring on the device, so that the rubber block clamps the capillary tube, and the kinematic viscosity is conveniently and conveniently detected subsequently.
Further, the top fixedly connected with pull rod of third connecting block, the equal fixedly connected with of upper and lower both sides of first connecting block connects the shell, the inside slidable mounting who connects the shell has the resistance piece, the front end shape of resistance piece is the hemisphere, and the resistance piece passes through the second spring and links to each other with the shell that connects, constitute the block structure between first connecting block and the support frame through second spring and resistance piece.
The beneficial effect of adopting above-mentioned further scheme is, makes the first linkage piece rotate half round through the block structure on the device, just can block once for the capillary can remain stable after the upset, has promoted the stability of device.
Further, the communication groove is formed in the lower portion of the overlapping block, the size of the communication groove is larger than that of the notch, and the outer wall of the rubber ring is attached to the inner wall of the overlapping block.
The beneficial effect of adopting above-mentioned further scheme is, and the size of intercommunication groove is great, and the breach on the purpose is guaranteed to the rubber ring can further rotate under the state of keeping the intercommunication after rotating to the position of intercommunication groove to the follow-up function of breathing in at further pivoted in-process realization.
Further, the notch corresponds to the tube head in position, and the tube head and the capillary viscometer form a rotating structure through the rubber ring and the lap joint block.
The beneficial effect of adopting above-mentioned further scheme is, through the rotating structure on the device for tube head and capillary viscometer can steadily rotate, make the position of breach can be adjusted, conveniently follow-up suction to the inside of capillary viscometer.
Further, the negative pressure assembly includes an outer balloon; the bottom fixedly connected with outer sacculus of overlap joint piece, the inside of outer sacculus is fixedly provided with interior sacculus, fixedly connected with third traction steel cable on the inner wall of interior sacculus, the third traction steel cable links to each other with first linkage piece through the leading wheel direction, the leading wheel rotates the below of installing in the overlap joint piece.
The beneficial effect of adopting above-mentioned further scheme is, can stimulate the interior sacculus at first linkage piece pivoted in-process to realize the function of breathing in, make the capillary on the device can realize automatic suction function after the upset, need not use with the help of the suction ball, promoted the result of use of device.
Further, the inner balloon forms a telescopic structure with the outer balloon through the first connecting block and the third traction steel rope, and the outer balloon is mutually communicated with the inside of the tube head through the communicating groove and the notch.
The technical scheme has the beneficial effects that when the communicating groove and the notch are mutually corresponding, the negative pressure in the outer saccule can suck the liquid in the white oil container through the capillary viscometer, so that the white oil can automatically suck the white oil after reaching the corresponding scale mark.
Drawings
FIG. 1 is a schematic view of the slider and adjustment assembly connection structure of the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1A according to the present invention;
FIG. 3 is a schematic view of the interface assembly and capillary viscometer connection configuration of the present invention;
FIG. 4 is a schematic view of the connection structure of the rotating drum and the extension plate of the present invention;
FIG. 5 is a schematic view of the connection structure of the support frame and the electric push rod of the present invention;
FIG. 6 is a schematic overall cross-sectional elevation view of the present invention;
FIG. 7 is a schematic view of the split structure of the joint block and the rubber ring of the present invention;
FIG. 8 is a schematic view of the second and third connection blocks of the present invention in a cross-sectional elevation view;
FIG. 9 is a schematic view of the joint block and negative pressure assembly connection structure of the present invention;
FIG. 10 is a schematic view of the structure of FIG. 9B according to the present invention;
fig. 11 is a schematic view of the structure of fig. 9C according to the present invention.
In the drawings, the list of components represented by the various numbers is as follows:
1. a support frame; 2. a slide block; 3. a support plate; 4. an adjustment assembly; 401. a first traction cable; 402. a rotating drum; 403. an extension plate; 404. a fixed block; 405. a first spring; 406. a second traction cable; 407. a rotating block; 408. an electric push rod; 409. a slide bar; 5. a fixed rod; 6. a docking assembly; 601. a first connection block; 602. a second connection block; 603. a third connecting block; 604. a second spring; 605. a resistance block; 606. a movable rod; 607. a third spring; 608. a connection housing; 609. a rubber block; 7. a capillary viscometer; 8. a splicing block; 9. a rubber ring; 10. a tube head; 11. a notch; 12. a pull rod; 13. a negative pressure assembly; 1301. an outer balloon; 1302. an inner balloon; 1303. a third traction cable; 1304. a guide wheel; 14. and a communication groove.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.
Food-grade white oil is commonly used in the fields of food processing, cosmetic manufacturing, pharmacy and the like, and an HT high-pressure hydrocracking process is adopted, so that the food-grade white oil can be used as a food release agent in food processing, can be used as an emollient in the cosmetic industry, can be used as a release agent for capsule production in the pharmaceutical industry, and has some problems in food-grade white oil hydrotreatment.
The existing white oil hydrotreating process cannot quickly re-extract the taken white oil and pour the white oil into the capillary viscometer in the white oil production process, needs to manually press a through hole at one end of the capillary viscometer, then sucks the white oil by using an ear suction ball, cannot be operated at one time, needs to be operated step by step for a plurality of times, cannot realize the function of automatically sucking the white oil under negative pressure in the process of turning over the capillary viscometer, and cannot automatically lift a white oil container in the process of turning over the capillary viscometer, so that the functionality is insufficient.
The present invention provides the following preferred embodiments
As shown in fig. 1-11, a hydrotreating process for preparing food-grade white oil, comprising the steps of:
A. feeding: the raw materials are sent to a hydrofining hydrotreating reactor for hydrotreating, and impurities in the hydrotreating reactor are removed before the reaction;
B. multistage hydrotreatment: removing sulfur, nitrogen, aromatic hydrocarbons and heavy metal impurities by heating and hydrogenating in a hydrotreating reactor;
C. extracting white oil: taking out part of hydrogenated white oil, preparing for kinematic viscosity detection, taking out the white oil, cooling the white oil to normal temperature, and removing part of the white oil by an extraction device;
D. kinematic viscosity detection: pouring white oil into a capillary viscometer for kinematic viscosity test, adjusting the viscometer to be in a vertical state, recording the flowing time of the viscometer, recording the average value of three times, and measuring and calculating the kinematic viscosity;
E. and (3) hydrotreating again: if the kinematic viscosity exceeds the standard, hydrogenation is carried out again to further take out impurities until the kinematic viscosity of the white oil reaches a proper range;
the extraction device in the hydrotreatment process step C for preparing the food-grade white oil comprises the following steps:
support frame 1, slider 2, backup pad 3 and intercommunication groove 14, the side slidable mounting of support frame 1 has slider 2, the fixed surface of slider 2 is connected with backup pad 3, the internally mounted of support frame 1 has subassembly 4, subassembly 4 is adjusted to the right side of being connected with dead lever 5, docking subassembly 6 is installed on the right side of dead lever 5, the internally mounted of docking subassembly 6 has capillary viscometer 7, the fixed surface mounting of support frame 1 has overlap piece 8, rubber ring 9 is installed in the right side rotation of overlap piece 8, the inside laminating of rubber ring 9 is provided with tube head 10, be fixed connection between tube head 10 and capillary viscometer 7, breach 11 has been seted up at the top of rubber ring 9, negative pressure assembly 13 is installed to overlap piece 8 and docking subassembly 6's below, negative pressure assembly 13 and subassembly 4, make capillary viscometer 7 on the device automatic negative pressure production when rotating, thereby automatic suction container internal white oil, and can automatic lifting backup pad 3 and automatic dock the mouth of pipe of capillary viscometer 7 with the white oil container, make the device accomplish multiple steps through capillary viscometer 7.
On the basis of the technical scheme, the invention can be improved as follows.
In this embodiment, as shown in fig. 1-6 and 9-10, for further lifting of the device adjustable degree, the adjusting assembly 4 comprises a first traction cable 401; the top fixedly connected with first traction steel rope 401 of slider 2, the top of first traction steel rope 401 is connected with extension board 403, the inside of extension board 403 is provided with rotary drum 402, rotary drum 402 rotates the inside of installing in support frame 1, the inside of rotary drum 402 runs through and is provided with slide bar 409, slide bar 409's front end links to each other with extension board 403, slide bar 409's left and right sides fixedly connected with fixed block 404, fixed block 404 links to each other with rotary drum 402 through first spring 405, electric putter 408 is fixedly installed in the inside left side of support frame 1, rotary block 407 is installed in electric putter 408's front end rotation, rotary block 407 links to each other with the end of slide bar 409 through the second traction steel rope 406, first traction steel rope 401 through the device on, make the capillary can drive extension board 403 and rotary drum 402 rotation at the in-process of rotation, and make first traction steel rope 401 twine on extension board 403 so that the automatic lifting white oil container of follow-up carries out white oil suction work, be fixed connection between fixed block 402 and the fixed block 5, be rotation connection between fixed block 5 and the support frame 1, electric putter 403 and the support frame 403 is for rotating connection, the extension board 403 can be moved with the synchronous size with the rotary drum 402 through the second traction steel rope 408, the extension device is able to make the white oil container can be moved with synchronous device through the extension device when the extension board 408, the synchronous size is different from the extension device, and the expansion device is used.
In this embodiment, as shown in fig. 1-3 and fig. 5-9, the docking assembly 6 includes a first connection block 601 in order to further improve the stability of the device; the right side fixedly connected with first connecting block 601 of dead lever 5, be swivelling joint between first connecting block 601 and the support frame 1, thereby make the rubber block 609 clamp the capillary, so that follow-up convenient ground detects kinematic viscosity, the top fixedly connected with pull rod 12 of third connecting block 603, the equal fixedly connected with coupling shell 608 of the equal fixedly connected with movable rod 606 of side of third connecting block 603 and second connecting block 602, movable rod 606 links to each other with second connecting block 602 and third connecting block 603 through third spring 607, the equal fixedly connected with rubber block 609 of inside of second connecting block 602 and third connecting block 603, third connecting block 602 and third connecting block 603 through the device, thereby make the rubber block 609 clamp the capillary, so that follow-up convenient ground detects kinematic viscosity, the top fixedly connected with pull rod 12 of third connecting block 603, the equal fixedly connected with coupling shell 608 of upper and lower both sides of first connecting block 601, the inside slidable mounting of coupling shell 608 has resistance block 605, the front end shape of resistance block 605 is hemisphere, resistance block 605 passes through second spring 604 and links to each other with coupling shell 608, first connecting block 601 through the equal fixedly connected with coupling shell 608 of second spring 604, make the first connecting block 601 can keep the effect to make the hollow device through the second connecting block 605 and make the clamp device keep the following one-to have been stable through the device through the first device through the clamp device, the clamp device has been made the following the first device can keep the stability.
In this embodiment, as shown in fig. 1, fig. 5-7 and fig. 9-11, in order to further improve the convenience of the device during use, the communicating groove 14 is formed below the overlap block 8, the size of the communicating groove 14 is larger than that of the notch 11, the outer wall of the rubber ring 9 is mutually attached to the inner wall of the overlap block 8, the size of the communicating groove 14 is larger, the purpose is to ensure that the notch 11 on the rubber ring 9 can further rotate in a state of being kept in communication after rotating to the position of the communicating groove 14, so that the suction function is realized in the subsequent process of further rotation, the position of the notch 11 corresponds to the position of the tube head 10, the tube head 10 and the capillary viscometer 7 form a rotating structure through the rotating structure on the device, so that the tube head 10 and the capillary viscometer 7 can stably rotate, the position of the notch 11 can be adjusted, and the interior of the capillary viscometer 7 can be conveniently and subsequently sucked.
In this embodiment, as shown in fig. 6 and 9, in order to further enhance the functionality of the device, the negative pressure assembly 13 includes an outer balloon 1301; the bottom fixedly connected with outer sacculus 1301 of overlap joint piece 8, the inside fixedly provided with of outer sacculus 1301 is gone up and is fixedly connected with third traction steel rope 1303 on the inner wall of inner sacculus 1302, third traction steel rope 1303 is linked to each other with first connecting block 601 through the leading wheel 1304 direction, the below in overlap joint piece 8 is installed in the rotation of leading wheel 1304, can stimulate inner sacculus 1302 in the pivoted in-process of first connecting block 601, thereby realize the suction function, make capillary on the device can realize automatic suction function after the upset, need not use with the help of the suction ball, the result of use of device has been promoted, constitute telescopic structure between inner sacculus 1302 and the outer sacculus 1301 through first connecting block 601 and third traction steel rope 1303, outer sacculus 1301 is mutually linked together with the inside of tube head 10 through intercommunication groove 14 and breach 11, when intercommunication groove 14 and breach 11 are corresponding, negative pressure in outer sacculus 1301 can be through the liquid in the capillary viscosimeter 7 suction white oil container, make white oil can carry out white oil suction work automatically after the corresponding scale mark is reached.
The specific working process of the invention is as follows:
(1) Docking
First, the whole device is docked with the capillary viscometer 7 through the docking assembly 6, in the docking process, the pull rod 12 is pulled outwards, the third connecting block 603 moves to the right, the third spring 607 on the movable rod 606 is stretched, then the capillary viscometer 7 is mounted inside the second connecting block 602 and the third connecting block 603, and the capillary viscometer 7 is clamped through the rubber block 609.
(2) Rotary capillary viscometer 7
In the process of rotating the capillary viscometer 7, the resistance blocks 605 on the first connecting block 601 can prop against the protruding portion on the right side of the supporting frame 1, so that the resistance blocks 605 are compressed into the connecting shell 608, the second springs 604 are compressed until the capillary viscometer 7 rotates 180 degrees, the resistance blocks 605 on the upper side and the lower side of the first connecting block 601 are clamped with the supporting frame 1 again, and the rotating drum 402 can be driven to synchronously rotate through the fixing rods 5 in the process of rotating the first connecting block 601.
(3) White oil container on lifting supporting plate 3
The drum 402 can enable the first traction steel rope 401 on the adjusting component 4 to be wound on the surface of the extension plate 403 in the rotating process, and the larger the diameter of a circular ring formed by the extension plate 403 at each place is, when the drum 402 rotates for a single circle, the longer the distance that the first traction steel rope 401 moves upwards by pulling the sliding block 2 and the supporting plate 3 is, so that the device can automatically lift a white oil container on the supporting plate 3 in the process of turning over the capillary viscometer 7, the pipe orifice of the capillary viscometer 7 enters the white oil container, the diameter of the circular ring formed by the extension plate 403 at each place can be adjusted according to the height of the container, the second traction steel rope 406 is loosened by the rotating block 407, or the second traction steel rope 406 is tensioned by the rotating block 407 by shortening the electric push rod 408, so that the sliding rod 409 can move in the interior of the drum 402 through the fixed block 404 and the first spring 405, the device can change the diameter of the circular ring formed by the extension plate 403, the device can increase the diameter of the first traction steel rope 403 when the first connecting block 601 rotates for a single circle, the device can automatically detect the length of the capillary viscometer 7, and the white oil can not be connected to the white oil container in the capillary device in the same way as the capillary device when the capillary viscometer 7 is automatically connected to the capillary device.
(4) Automatic suction of white oil
While the first connecting block 601 is rotated, the third traction steel rope 1303 on the guide wheel 1304 is wound on the first connecting block 601, so that the third traction steel rope 1303 pulls the inner balloon 1302 in the outer balloon 1301, negative pressure is generated in the outer balloon 1301 and the communicating groove 14, at the moment, the notch 11 on the rubber ring 9 corresponds to the communicating groove 14 in position, white oil is sucked from the pipe orifice at the tail end of the capillary viscometer 7 through the pipe head 10 by utilizing the negative pressure generated in the outer balloon 1301 and the communicating groove 14, and the function of automatically sucking the white oil while turning over the capillary viscometer 7 is realized.
To sum up: the invention has the advantages that the hydrotreatment process for preparing the food-grade white oil is improved on the basis of the prior art, the butt joint component 6 on the device is utilized to compress and fix the capillary viscometer 7, and the negative pressure component 13 can automatically generate negative pressure in the rotating process of the capillary viscometer 7, so that the capillary viscometer 7 can suck white oil in a container through the top end of the capillary viscometer to facilitate the follow-up kinematic viscosity detection work, the functionality of the device is improved, and the defect that the conventional hydrotreatment device for preparing the white oil needs to manually press a through hole at one end of the capillary viscometer 7 and then suck the white oil by using the ear suction ball is overcome, so that the operation is inconvenient.
The hydrotreatment process effect for preparing the food-grade white oil is better, the device can also drive the adjusting component 4 to rotate in the process of rotating the capillary viscometer 7, the size of the adjusting component 4 can be adjusted, the size of the adjusting component can be correspondingly increased or reduced according to the size of the white oil container, the rising height of the white oil container can be adjusted in the process of rotating the capillary viscometer 7, the device can keep the tube head 10 on the capillary viscometer 7 closed when rotating the capillary viscometer 7, the container can be automatically lifted, and the height of the white oil container can be self-adapted.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (4)
1. A hydrotreating process for preparing food-grade white oil, which is characterized by comprising the following steps:
A. feeding: sending the raw materials into a hydrofining hydrotreating reactor for hydrotreating, and removing impurities in the hydrotreating reactor before ignition;
B. multistage hydrotreatment: removing sulfur, nitrogen, aromatic hydrocarbons and heavy metal impurities by heating and hydrogenating in a hydrotreating reactor;
C. extracting white oil: taking out part of hydrogenated white oil, preparing for kinematic viscosity detection, taking out the white oil, cooling the white oil to normal temperature, and removing part of the white oil by an extraction device;
D. kinematic viscosity detection: pouring white oil into a capillary viscometer for kinematic viscosity test, adjusting the viscometer to be in a vertical state, recording the flowing time of the viscometer, recording the average value of three times, and measuring and calculating the kinematic viscosity;
E. and (3) hydrotreating again: if the kinematic viscosity exceeds the standard, hydrogenation is carried out again to further take out impurities until the kinematic viscosity of the white oil reaches a proper range;
the extraction device in the hydrotreatment process step C for preparing the food-grade white oil comprises:
support frame (1), slider (2), backup pad (3) and intercommunication groove (14), the side slidable mounting of support frame (1) has slider (2), the fixed surface of slider (2) is connected with backup pad (3), the internally mounted of support frame (1) has adjusting part (4), adjusting part (4) include first traction cable (401), the top fixedly connected with of slider (2) first traction cable (401), the top of first traction cable (401) is connected with extension board (403), the inside of extension board (403) is provided with rotary drum (402), rotary drum (402) rotate and install in the inside of support frame (1), the inside of rotary drum (402) runs through and is provided with slide bar (409), the front end and the extension board (403) of slide bar (409) link to each other, the left and right sides fixedly connected with fixed block (404) of slide bar (409), the fixed block (404) link to each other with rotary drum (402) through first spring (405), the inside left side fixedly installed electric putter (408) of support frame (1), electric putter (408) rotate the front end (407), the rotating block (407) is connected with the tail end of the sliding rod (409) through a second traction steel rope (406);
the right side of the adjusting component (4) is connected with a fixed rod (5), the rotating drum (402) is fixedly connected with the fixed rod (5), the fixed rod (5) is rotationally connected with the supporting frame (1), and the extension plate (403) forms a telescopic structure with the rotating drum (402) through an electric push rod (408), a second traction steel rope (406) and a sliding rod (409);
the right side of dead lever (5) is installed butt joint subassembly (6), butt joint subassembly (6) include first connecting block (601), the right side fixedly connected with first connecting block (601) of dead lever (5), be rotation connection between first connecting block (601) and support frame (1), the right side fixedly connected with second connecting block (602) of first connecting block (601), third connecting block (603) are installed in the right side sliding of second connecting block (602), all fixedly connected with movable rod (606) in the side of third connecting block (603) and second connecting block (602), movable rod (606) link to each other with second connecting block (602) and third connecting block (603) through third spring (607), the inside of second connecting block (602) and third connecting block (603) is all fixedly installed with rubber block (609);
the top of the third connecting block (603) is fixedly connected with a pull rod (12), the upper side and the lower side of the first connecting block (601) are fixedly connected with a connecting shell (608), a resistance block (605) is slidably arranged in the connecting shell (608), the front end of the resistance block (605) is in the shape of a hemisphere, the resistance block (605) is connected with the connecting shell (608) through a second spring (604), and the first connecting block (601) and the supporting frame (1) form a clamping structure through the second spring (604);
the inside mounting of butt joint subassembly (6) has capillary viscometer (7), the fixed surface of support frame (1) installs overlap joint piece (8), overlap joint piece (8) right side rotates and installs rubber ring (9), the inside laminating of rubber ring (9) is provided with tube head (10), be fixed connection between tube head (10) and capillary viscometer (7), breach (11) have been seted up at the top of rubber ring (9), intercommunication groove (14) have been seted up to the below of overlap joint piece (8), the size of intercommunication groove (14) is greater than the size of breach (11), the outer wall of rubber ring (9) is laminated mutually with the inner wall of overlap joint piece (8), negative pressure subassembly (13) are installed to the below of overlap joint piece (8) and butt joint subassembly (6).
2. The hydrotreatment process for preparing a white oil of food grade according to claim 1, characterized in that the position of the notch (11) corresponds to the position of the tube head (10), the tube head (10) and the capillary viscometer (7) form a rotating structure between the rubber ring (9) and the overlap block (8).
3. The hydrotreatment process for preparing a food-grade white oil according to claim 1, characterized in that the negative pressure assembly (13) comprises an outer balloon (1301); the bottom fixedly connected with outer sacculus (1301) of overlap joint piece (8), the inside of outer sacculus (1301) is fixedly provided with interior sacculus (1302), fixedly connected with third traction steel cable (1303) on the inner wall of interior sacculus (1302), third traction steel cable (1303) link to each other with first connecting piece (601) through leading wheel (1304) direction, leading wheel (1304) rotate and install in the below of overlap joint piece (8).
4. A hydrotreating process for preparing a food-grade white oil as in claim 3, in which said inner balloon (1302) forms a telescopic structure with the outer balloon (1301) through the first connecting block (601) and the third traction steel rope (1303), said outer balloon (1301) being mutually connected with the inside of the tube head (10) through the communicating groove (14) and the notch (11).
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| CN1952066A (en) * | 2005-10-19 | 2007-04-25 | 中国石油化工股份有限公司 | Hydrogenation process of producing food-level white oil |
| CN101768466A (en) * | 2004-07-22 | 2010-07-07 | 雪佛龙美国公司 | Method for producing white oil |
| CN107629817A (en) * | 2017-10-20 | 2018-01-26 | 神华集团有限责任公司 | The preparation method of white oil |
| CN209039404U (en) * | 2018-10-25 | 2019-06-28 | 东营市俊源石油技术开发有限公司 | A kind of low pressure lightweight WHITE OIL PRODUCTION complexes |
| CN111518589A (en) * | 2020-04-21 | 2020-08-11 | 中建安装集团有限公司 | Production process of food-grade white oil |
| CN111704930A (en) * | 2020-05-14 | 2020-09-25 | 山东清沂山石化科技有限公司 | Production process of food-grade white oil |
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2022
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101768466A (en) * | 2004-07-22 | 2010-07-07 | 雪佛龙美国公司 | Method for producing white oil |
| CN1952066A (en) * | 2005-10-19 | 2007-04-25 | 中国石油化工股份有限公司 | Hydrogenation process of producing food-level white oil |
| CN107629817A (en) * | 2017-10-20 | 2018-01-26 | 神华集团有限责任公司 | The preparation method of white oil |
| CN209039404U (en) * | 2018-10-25 | 2019-06-28 | 东营市俊源石油技术开发有限公司 | A kind of low pressure lightweight WHITE OIL PRODUCTION complexes |
| CN111518589A (en) * | 2020-04-21 | 2020-08-11 | 中建安装集团有限公司 | Production process of food-grade white oil |
| CN111704930A (en) * | 2020-05-14 | 2020-09-25 | 山东清沂山石化科技有限公司 | Production process of food-grade white oil |
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