CN110669562B - Preparation method of lubricating oil - Google Patents
Preparation method of lubricating oil Download PDFInfo
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- CN110669562B CN110669562B CN201910968465.9A CN201910968465A CN110669562B CN 110669562 B CN110669562 B CN 110669562B CN 201910968465 A CN201910968465 A CN 201910968465A CN 110669562 B CN110669562 B CN 110669562B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
- C10M105/08—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen
- C10M105/32—Esters
- C10M105/38—Esters of polyhydroxy compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/10—Vacuum distillation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/42—Regulation; Control
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
- C10M169/045—Mixtures of base-materials and additives the additives being a mixture of compounds of unknown or incompletely defined constitution and non-macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/283—Esters of polyhydroxy compounds
- C10M2207/2835—Esters of polyhydroxy compounds used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/12—Polysaccharides, e.g. cellulose, biopolymers
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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Fats And Perfumes (AREA)
- Lubricants (AREA)
Abstract
The invention belongs to the technical field of lubricating oil preparation, and particularly relates to a preparation method of lubricating oil; the distillation tank used in the method comprises a tank body, wherein a feeding hole is formed in the side wall of the tank body, and a discharging hole is formed in the bottom of the tank body; the middle part of the inner side of the tank body is provided with a movable disc, the movable disc is made of light materials, and a plurality of cavities are arranged in the movable disc, so that the movable disc can be suspended on the water surface and sink to the bottom of the polyol ester; according to the invention, the movable disc is arranged and made of a light material, the plurality of cavities are arranged in the movable disc and are just suspended at the boundary between a certain amount of water and polyol ester after the polyol ester is layered, when the water is discharged from the discharge port, the movable disc reaches the bottommost end, the weight of the polyol ester above the movable disc can extrude the movable disc downwards, and finally the movable disc extrudes the two seal plates to enable the two seal plates to be in a contact state so as to seal the square through hole, so that the automatic closing of the discharge port is finally realized, and the waste of resources is reduced.
Description
Technical Field
The invention belongs to the technical field of lubricating oil preparation, and particularly relates to a preparation method of lubricating oil.
Background
The biological lubricating oil is ultra-clean lubricating oil for protecting environment and preventing air pollution, and also has the function of reducing CO2The emission is reduced, and the greenhouse effect is reduced; the development of biological lubricating oil is beneficial to increasing the yield and improving the diesel/gasoline ratio of an oil product structure in China, the hydraulic transmission technology is a transmission technology which is commonly applied in industry, but most of the existing hydraulic systems adopt mineral hydraulic oil as a working medium, so that a large amount of petroleum resources are consumed, and the environmental pollution is caused. Under the background, environmental-friendly and energy-saving hydraulic transmission technologies are researched in various countries in the world, and the main development direction of the technology is to develop biodegradable hydraulic oil. The biodegradable hydraulic oil can meet the requirements of a machine hydraulic system, and the waste products of the hydraulic oil do not harm the environment. Biodegradability means the decomposition of a substance into CO by living organisms by biological action2And H2The capacity of O. Biodegradable hydraulic oil composition andthe common mineral hydraulic oil is composed of base oil and additives. But the structures of the base oil and the additive are different from those of the common mineral hydraulic oil due to the degradable performance of the base oil and the additive.
When biological lubricating oil is carried out, polyol ester is placed into a distillation retort for reduced pressure distillation, hydrogen peroxide is added for standing and layering, when water in the lower layer is discharged by the conventional distillation retort, when liquid at the boundary of water and oil is discharged from the distillation retort, due to the fact that the residual height of a water level is not known, after a part of oil liquid is discharged, a worker can timely and quickly close a discharge port at the bottom of the distillation retort, and waste of the oil liquid is prevented.
Disclosure of Invention
In view of the deficiencies of the prior art, the present invention provides a method for preparing a lubricating oil, which solves the problems set forth in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a method of preparing a lubricating oil, the method comprising the steps of:
s1: uniformly mixing 30-40 parts by weight of polyol, 40-60 parts by weight of vegetable oil, 3-5 parts by weight of solid super acidic catalyst and 80-120 parts by weight of organic solvent, heating, and reacting to obtain polyol ester;
s2: putting the obtained polyol ester into a distillation retort for reduced pressure distillation, evaporating an organic solvent, then adding 30-40 parts of formic acid, heating to 60-90 ℃, dropwise adding 20-40 parts of hydrogen peroxide, after dropwise adding, preserving heat for 2-4 hours, standing for layering, removing a water layer, distilling an oil layer, collecting fractions at 190-210 ℃, and obtaining the modified polyol ester;
s3: uniformly mixing 10-20 parts of modified polyol ester, 10-20 parts of base oil, 2-4 parts of triacetin, 1-3 parts of xanthan gum, 1 part of antirust agent, 1 part of extreme pressure antiwear agent and 1 part of surfactant;
the distillation tank in the S2 comprises a tank body, wherein a feeding hole is formed in the side wall of the tank body, and a discharging hole is formed in the bottom of the tank body; the middle part of the inner side of the tank body is provided with a movable disc, the movable disc is made of light materials, and a plurality of cavities are arranged in the movable disc, so that the movable disc can be suspended on the water surface and sink to the bottom of the polyol ester; the middle part of the moving disc is provided with a square through hole, the surface of the moving disc at the bottom of the square through hole is hinged with two sealing plates, and the free ends of the two sealing plates can be sealed with the square through hole after contacting; when the device works, polyol ester is put into a distillation retort for reduced pressure distillation, an organic solvent is evaporated, formic acid is added and heated, hydrogen peroxide is added dropwise, after dropwise adding is finished, heat is preserved for 2 hours, standing and layering are carried out, the height of the water level of the polyol ester after standing and layering is within a certain range, as the movable disc is made of a light material and is internally provided with a plurality of cavities, the movable disc can be suspended on the water surface and sink to the bottom of the polyol ester and just suspend at the boundary of the water and the polyol ester after layering, after a discharge port is opened, the movable disc descends along with the descending of the water level in the process of descending of the water, the two seal plates are hollow when being manufactured, the two seal plates deflect downwards to the state that the deflection angle is less than ninety degrees from the contact state, and when the movable disc descends along with the descending of the water level, the movable disc drives the seal plates to move downwards, when water is discharged from the discharge port, the movable disc reaches the bottommost end, the weight of polyol ester above the movable disc can extrude the two seal plates by downward extrusion force, and the movable disc finally extrudes the two seal plates to enable the two seal plates to be in a contact state, so that the square through hole is blocked, the automatic closing of the discharge port is finally realized, other matters can be processed by workers, then the workers find that the discharge port does not leak liquid any more, the water is completely discharged, and the condition of resource waste caused by the fact that the discharge port is not closed by the workers in time can be prevented.
Preferably, a plurality of sector plates are inserted at the outer edge of the moving disc, the sector plates form an annular shape, a protruding bag is arranged between the sector plates, one ends of the sector plates, which are positioned in the moving disc, are fixedly connected with push rods, an annular cavity is arranged in the moving disc, one ends of the push rods are arranged in the annular cavity, an extruding bag is arranged at the bottom of the moving disc, the extruding bag can be extruded in the contact process of the free ends of the two sealing plates, the top of the extruding bag is communicated with a conduction pipe, and the top end of the conduction pipe is arranged in the annular cavity; after the inner wall of the tank body, particularly the bottom of the tank body is not protected by grease and is in permanent corrosion of acid liquor, a gap appears after the bottom of the inner wall of the tank body is contacted with the two seal plates, the drained polyol ester slowly leaks out from the discharge hole through the gap, therefore, the plurality of sector plates are inserted in the outer edge of the movable disc, the two seal plates are extruded to the extrusion bag when the two seal plates are contacted with each other under the gravity of the polyol ester, the gas in the extrusion bag is extruded into the annular cavity through the conduction pipe, the gas entering the annular cavity can push the plurality of sector plates to move towards the direction close to the inner wall of the tank body, the gap between the outer edge of the movable disc and the inner wall of the tank body can be sealed, meanwhile, due to the effect of the protruding bag, the protruding bag can move outwards along with the protruding bag in the expansion process of the sector plates, after the sector plates are tightly attached to the inner wall of the tank body, the protruding bag just in time fills the clearance that causes behind two sector plates owing to sector plate removal between two sector plates, makes the protruding bag of a plurality of sector plates and two adjacent sector plates inter-plate constitute an annular, carries out better closure to the clearance between removal dish outer fringe and the internal wall of jar, prevents that polyol ester from appearing the discharge gate of position department in clearance after jar internal wall bottom and two shroudings contact.
Preferably, the extrusion bladder is annular, and the two sealing plates can press the extrusion bladder into a sheet shape; the extrusion bag is the annular, can be when two shroudings seal square through hole, and the extrusion bag can paste tightly to the shrouding and the clearance between the removal dish, improves the shrouding and to square through hole's sealing performance, can press the extrusion bag into the slice through two shroudings, guarantees that the inside gas of extrusion bag enters into the annular chamber completely, promotes a plurality of sector plates and pastes tight internal wall of jar, carries out better closure to the clearance between removal dish outer fringe and the internal wall of jar.
Preferably, a plurality of half ring grooves are formed in the tops of the two sealing plates, and after the free ends of the two sealing plates are contacted, the plurality of half ring grooves on the two sealing plates can form a plurality of ring grooves; a plurality of half annular grooves form a plurality of annular grooves after two shrouding contacts, can be when the removal dish bottom between extrusion bag and the quad slit produces the clearance, the polyol ester that enters into in the clearance of removal dish bottom can take lead to one annular groove to fill completely the back, just can reach extrusion bag department from the clearance of removal dish bottom, play certain delay effect to stretching of polyol ester, before the further process of polyol ester after the workman is to the drainage, the probability that polyol ester reachd extrusion bag department reduces.
Preferably, the top of the discharge port is provided with an annular cylinder, and the height of the annular cylinder is 5-10 cm; because the boundary department of water after the layering and polyol ester has a small amount of mixed layers, consequently be provided with a ring section of thick bamboo at the discharge gate top, contact a ring section of thick bamboo after the removal dish, two shroudings extrude a ring section of thick bamboo promptly, and be in the closed condition to the side shape through-hole, finally with the effect separation of a part mixed liquid of removal dish bottom through a ring section of thick bamboo at internal portion of jar, reduced the waste of resource.
Preferably, the top of the annular cylinder is fixedly connected with a plurality of hemispherical covers, two adjacent hemispherical covers are in contact, and a supplement port is formed in the position, away from the central axis of the annular cylinder, of each hemispherical cover; when the initial moving plate is not lowered, the interior of the hemispherical cover is filled with water, and when the two closing plates are lowered and finally the water in the hemispherical cover is pressed out under the gravity action of the polyol ester, the water level can be raised, the height of the polyol ester can be raised finally, the height of the mixing layer can be raised finally, and the amount of the polyol ester remaining in the tank body can be further increased.
The invention has the technical effects and advantages that:
1. according to the preparation method of the lubricating oil, the movable disc is made of the light material, the plurality of cavities are formed in the movable disc and are just suspended at the boundary of water and polyol ester after the polyol ester is layered, when the water is discharged from the discharge port, the movable disc reaches the bottommost end, the weight of the polyol ester above the movable disc extrudes the two seal plates downwards by virtue of the downward extrusion force, and finally the movable disc extrudes the two seal plates to enable the two seal plates to be in a contact state to block the square through hole, so that the discharge port is automatically closed, and the waste of resources is reduced.
2. According to the preparation method of the lubricating oil, in the process that the two sealing plates are contacted with each other under the gravity of the polyol ester, the two sealing plates are extruded to the extrusion bag, the extrusion bag extrudes the gas in the extrusion bag into the annular cavity through the conduction pipe, the gas entering the annular cavity can push the fan-shaped plates to move towards the direction close to the inner wall of the tank body, and the gap between the outer edge of the moving plate and the inner wall of the tank body can be sealed.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a flow chart of a method of the present invention;
FIG. 2 is a schematic perspective view of a distillation tank for use in the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 2 according to the present invention;
FIG. 4 is a cross-sectional view of a major face of a can body;
FIG. 5 is a top cross-sectional view of the can body;
in the figure: the device comprises a tank body 1, a feeding hole 2, a discharging hole 3, a moving disc 4, a square through hole 5, a sealing plate 6, a sector plate 7, a protruding bag 8, a push rod 9, an annular cavity 10, an extrusion bag 11, a conduction pipe 12, a semi-annular groove 13, an annular cylinder 14, a hemispherical cover 15 and a supplement port 16.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 5, the method for preparing the lubricating oil of the present invention comprises the following steps:
s1: uniformly mixing 30-40 parts by weight of polyol, 40-60 parts by weight of vegetable oil, 3-5 parts by weight of solid super acidic catalyst and 80-120 parts by weight of organic solvent, heating, and reacting to obtain polyol ester;
s2: putting the obtained polyol ester into a distillation retort for reduced pressure distillation, evaporating an organic solvent, then adding 30-40 parts of formic acid, heating to 60-90 ℃, dropwise adding 20-40 parts of hydrogen peroxide, after dropwise adding, preserving heat for 2-4 hours, standing for layering, removing a water layer, distilling an oil layer, collecting fractions at 190-210 ℃, and obtaining the modified polyol ester;
s3: uniformly mixing 10-20 parts of modified polyol ester, 10-20 parts of base oil, 2-4 parts of triacetin, 1-3 parts of xanthan gum, 1 part of antirust agent, 1 part of extreme pressure antiwear agent and 1 part of surfactant;
the distillation tank in the S2 comprises a tank body 1, wherein a feeding hole 2 is formed in the side wall of the tank body 1, and a discharging hole 3 is formed in the bottom of the tank body 1; a movable disc 4 is arranged in the middle of the inner side of the tank body 1, the movable disc 4 is made of light materials, and a plurality of cavities are formed in the movable disc 4, so that the movable disc can be suspended on the water surface and sink to the bottom of the polyol ester; a square through hole 5 is formed in the middle of the movable disc 4, two sealing plates 6 are hinged to the surface of the movable disc 4 at the bottom of the square through hole 5, and the free ends of the two sealing plates 6 can be sealed with the square through hole 5 after being contacted; when the device works, polyol ester is put into a distillation retort for reduced pressure distillation, an organic solvent is evaporated, formic acid is added and heated, hydrogen peroxide is added dropwise, after dropwise addition is finished, heat is preserved for 2 hours, standing and layering are carried out, the height of the water level of the polyol ester after standing and layering is within a certain range, as the movable disc 4 is made of a light material and is internally provided with a plurality of cavities, the movable disc 4 can be suspended on the water surface and sink to the bottom of the polyol ester and just suspend at the boundary of the water and the polyol ester after layering, after the discharge port 3 is opened, the movable disc 4 descends along with the descending of the water level in the process of descending of the water, the two seal plates 6 are hollow when being manufactured, the two seal plates 6 deflect downwards to the state that the deflection angle is less than ninety degrees from the state of contact, when the movable disc 4 descends along with the descending of the water level, the movable disc 4 drives the seal plates 6 to move downwards, when water was discharged from discharge gate 3, removal dish 4 arrived the bottommost, the weight of the polyol ester of top can be to removal dish 4 by decurrent extrusion force, final removal dish 4 extrudees two shrouding 6, make two shrouding 6 be in contact state, block square through-hole 5, finally realized the self-closing to discharge gate 3, the workman can handle other affairs, then the workman is when discovering discharge gate 3 no longer the weeping, show that water has discharged completely, can prevent to cause the condition of wasting of resources because of the workman does not in time close discharge gate 3.
The outer edge of the movable disc 4 is spliced with a plurality of sector plates 7, the sector plates 7 form an annular shape, a protruding bag 8 is arranged between the sector plates 7, one end, located inside the movable disc 4, of each sector plate 7 is fixedly connected with a push rod 9, an annular cavity 10 is arranged inside the movable disc 4, one end of each push rod 9 is arranged inside the annular cavity 10, a squeezing bag 11 is arranged at the bottom of the movable disc 4, the squeezing bags 11 can be squeezed in the contact process of the free ends of the two sealing plates 6, the tops of the squeezing bags 11 are communicated with a conduction pipe 12, and the top ends of the conduction pipes 12 are arranged inside the annular cavity 10; after the inner wall of the tank body 1, particularly the bottom of the tank body 1 is not protected by grease and is in permanent corrosion of acid liquor, a gap is formed after the bottom of the inner wall of the tank body 1 is contacted with the two seal plates 6, the drained polyol ester slowly leaks out from the discharge port 3 through the gap, therefore, a plurality of fan-shaped plates 7 are inserted at the outer edge of the movable disk 4, the two seal plates 6 are extruded to the extrusion bag 11 in the process that the two seal plates 6 are contacted with each other under the gravity of the polyol ester, the extrusion bag 11 extrudes the gas in the annular cavity 10 through the conduction pipe 12, the gas entering the annular cavity 10 can push the fan-shaped plates 7 to move towards the direction close to the inner wall of the tank body 1, the gap between the outer edge of the movable disk 4 and the inner wall of the tank body 1 can be sealed, and simultaneously, due to the action of the protrusion bag 8 between the two adjacent fan-shaped plates 7, the protrusion bag 8 can move outwards along with the protrusion bag 8 in the process of the expansion of the fan-shaped plates 7, after the sector plates 7 are tightly attached to the inner wall of the tank body 1, the protruding bag 8 just fills the gap between the two sector plates 7 caused by the movement of the sector plates 7, so that the plurality of sector plates 7 and the protruding bag 8 between the two adjacent sector plates 7 form an annular shape, the gap between the outer edge of the movable disc 4 and the inner wall of the tank body 1 is better sealed, and the polyol ester is prevented from being discharged from the discharge port 3 from the position where the gap appears after the contact between the bottom of the inner wall of the tank body 1 and the two seal plates 6.
The extrusion bag 11 is annular, and the two sealing plates 6 can press the extrusion bag 11 into a sheet shape; the squeeze bag 11 is annular, can be when two 6 shroudings close to shape through-hole 5, squeeze bag 11 can paste closely the clearance between 6 shroudings and the removal dish 4, improve 6 sealing performance to shape through-hole 5 of shrouding, can press into the piece with squeeze bag 11 through two shroudings 6, guarantee that the inside gas of squeeze bag 11 enters into annular chamber 10 completely, promote a plurality of sector plates 7 and paste tight jar internal wall 1, carry out better closure to the clearance between 4 outer edges of removal dish and jar internal wall 1.
The top parts of the two sealing plates 6 are respectively provided with a plurality of semi-annular grooves 13, and after the free ends of the two sealing plates 6 are contacted, the plurality of semi-annular grooves 13 on the two sealing plates 6 can form a plurality of annular grooves; after two shrouding 6 contacts, a plurality of semi-ring grooves 13 form a plurality of ring channels, can be when the 4 bottoms of removal dish between extrusion bag 11 and the quad slit produce the clearance, the polyol ester that enters into in the clearance of 4 bottoms of removal dish can take the lead to the ring channel of one to fill completely after, just can reach extrusion bag 11 department from the clearance of 4 bottoms of removal dish, play certain delay effect to stretching of polyol ester, before the further process of polyol ester after the workman is to the drainage, the probability that polyol ester reachd extrusion bag 11 department reduces.
An annular cylinder 14 is arranged at the top of the discharge port 3, and the height of the annular cylinder 14 is 5-10 cm; because the boundary of the layered water and the polyol ester has a small amount of mixed layers, the top of the discharge port 3 is provided with the annular cylinder 14, after the movable disc 4 contacts the annular cylinder 14, the two seal plates 6 are extruded to the annular cylinder 14, the square through hole 5 is in a closed state, and finally, part of mixed liquid at the bottom of the movable disc 4 is blocked in the tank body 1 through the action of the annular cylinder 14, so that the waste of resources is reduced.
The top of the annular cylinder 14 is fixedly connected with a plurality of hemispherical covers 15, two adjacent hemispherical covers 15 are in contact, and a supplement port 16 is formed in the position, away from the central axis of the annular cylinder 14, of each hemispherical cover 15; when the initial moving plate 4 is not lowered, the inside of the dome cover 15 is filled with water, and after the two closing plates 6 are lowered and the water in the dome cover 15 is finally pushed out by the gravity of the polyol ester, the water level can be raised, the height of the polyol ester can be finally raised, the height of the mixed layer can be finally raised, and the amount of the polyol ester remaining in the tank body 1 can be further increased.
When the device works, polyol ester is put into a distillation retort for reduced pressure distillation, an organic solvent is evaporated, formic acid is added and heated, hydrogen peroxide is added dropwise, after dropwise addition is finished, heat is preserved for 2 hours, standing and layering are carried out, the height of the water level of the polyol ester after standing and layering is within a certain range, as the movable disc 4 is made of a light material and is internally provided with a plurality of cavities, the movable disc 4 can be suspended on the water surface and sink to the bottom of the polyol ester and just suspend at the boundary of the water and the polyol ester after layering, after the discharge port 3 is opened, the movable disc 4 descends along with the descending of the water level in the process of descending of the water, the two seal plates 6 are hollow when being manufactured, the two seal plates 6 deflect downwards to the state that the deflection angle is less than ninety degrees from the state of contact, when the movable disc 4 descends along with the descending of the water level, the movable disc 4 drives the seal plates 6 to move downwards, when water was discharged from discharge gate 3, removal dish 4 arrived the bottommost, the weight of the polyol ester of top can be to removal dish 4 by decurrent extrusion force, final removal dish 4 extrudees two shrouding 6, make two shrouding 6 be in contact state, block square through-hole 5, finally realized the self-closing to discharge gate 3, the workman can handle other affairs, then the workman is when discovering discharge gate 3 no longer the weeping, show that water has discharged completely, can prevent to cause the condition of wasting of resources because of the workman does not in time close discharge gate 3.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. A preparation method of lubricating oil is characterized by comprising the following steps: the method comprises the following steps:
s1: uniformly mixing 30-40 parts by weight of polyol, 40-60 parts by weight of vegetable oil, 3-5 parts by weight of solid super acidic catalyst and 80-120 parts by weight of organic solvent, heating, and reacting to obtain polyol ester;
s2: putting the obtained polyol ester into a distillation retort for reduced pressure distillation, evaporating an organic solvent, then adding 30-40 parts of formic acid, heating to 60-90 ℃, dropwise adding 20-40 parts of hydrogen peroxide, after dropwise adding, preserving heat for 2-4 hours, standing for layering, removing a water layer, distilling an oil layer, collecting fractions at 190-210 ℃, and obtaining the modified polyol ester;
s3: uniformly mixing 10-20 parts of modified polyol ester, 10-20 parts of base oil, 2-4 parts of triacetin, 1-3 parts of xanthan gum, 1 part of antirust agent, 1 part of extreme pressure antiwear agent and 1 part of surfactant;
the distillation tank in the S2 comprises a tank body (1), wherein a feeding hole (2) is formed in the side wall of the tank body (1), and a discharging hole (3) is formed in the bottom of the tank body (1); a movable disc (4) is arranged in the middle of the inner side of the tank body (1), the movable disc (4) is made of light materials, and a plurality of cavities are formed in the movable disc (4) so that the movable disc can be suspended on the water surface and sink to the bottom of the polyol ester; a square through hole (5) is formed in the middle of the moving disc (4), two sealing plates (6) are hinged to the surface of the moving disc (4) at the bottom of the square through hole (5), and the free ends of the two sealing plates (6) can be sealed with the square through hole (5) after being contacted;
the outer edge of the movable disc (4) is spliced with a plurality of sector plates (7), the sector plates (7) form an annular shape, a protruding bag (8) is arranged between the sector plates (7), one end, located inside the movable disc (4), of each sector plate (7) is fixedly connected with a push rod (9), an annular cavity (10) is arranged inside the movable disc (4), one end of each push rod (9) is arranged inside the annular cavity (10), a squeezing bag (11) is arranged at the bottom of the movable disc (4), the squeezing bags (11) can be squeezed in the process of contacting the free ends of the two sealing plates (6), the tops of the squeezing bags (11) are communicated with a conduction pipe (12), and the top ends of the conduction pipes (12) are arranged inside the annular cavity (10);
two shrouding (6) top all is provided with a plurality of half annular grooves (13), and the free end of two shrouding (6) is back, two a plurality of half annular grooves (13) on shrouding (6) can form a plurality of annular grooves.
2. The method of claim 1, wherein: the extrusion bag (11) is annular, and the two sealing plates (6) can press the extrusion bag (11) into a sheet shape.
3. The method of claim 1, wherein: an annular cylinder (14) is arranged at the top of the discharge hole (3), and the height of the annular cylinder (14) is 5-10 cm.
4. The method of claim 3, wherein: the top of the annular cylinder (14) is fixedly connected with a plurality of hemispherical covers (15), two adjacent hemispherical covers (15) are in contact, and the positions, far away from the central axis of the annular cylinder (14), of the hemispherical covers (15) are provided with supplementary ports (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910968465.9A CN110669562B (en) | 2019-10-12 | 2019-10-12 | Preparation method of lubricating oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910968465.9A CN110669562B (en) | 2019-10-12 | 2019-10-12 | Preparation method of lubricating oil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110669562A CN110669562A (en) | 2020-01-10 |
| CN110669562B true CN110669562B (en) | 2021-11-30 |
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| GB278891A (en) * | 1926-10-22 | 1927-10-20 | Joseph Savage | Improved process and apparatus for extracting oleaginous and other materials with volatile solvents |
| GB1528867A (en) * | 1975-10-14 | 1978-10-18 | Texaco Development Corp | Carbon decanter |
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| RU2034623C1 (en) * | 1992-07-03 | 1995-05-10 | Акционерное общество "Новатор" | Settler for separating immiscible liquids |
| FR2808456B1 (en) * | 2000-05-03 | 2003-02-14 | Schlumberger Services Petrol | GRAVITY SEPARATOR FOR MULTIPHASIC EFFLUENTS |
| CN204182161U (en) * | 2014-11-01 | 2015-03-04 | 赣州白塔金属材料有限公司 | A kind of chemical metallization feed liquid oily-water seperating equipment |
| CN104450104B (en) * | 2014-12-27 | 2016-08-24 | 安耐驰河北石油化工股份有限公司 | A kind of preparation method of biodegradable lubricating oil |
| CN208378824U (en) * | 2018-06-01 | 2019-01-15 | 福州美乐莲生物科技有限公司 | A kind of tea tree ethereal oil extraction element |
| CN108862469B (en) * | 2018-07-11 | 2021-08-06 | 海盐久力零部件科技有限公司 | Domestic sewage oil-water separator |
| CN109126206A (en) * | 2018-09-29 | 2019-01-04 | 任少虎 | A kind of mixing liquid separation method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB278891A (en) * | 1926-10-22 | 1927-10-20 | Joseph Savage | Improved process and apparatus for extracting oleaginous and other materials with volatile solvents |
| GB1528867A (en) * | 1975-10-14 | 1978-10-18 | Texaco Development Corp | Carbon decanter |
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