CN208843994U - A kind of regeneration treatment system of acid residuals of petroleum - Google Patents
A kind of regeneration treatment system of acid residuals of petroleum Download PDFInfo
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- CN208843994U CN208843994U CN201821364981.8U CN201821364981U CN208843994U CN 208843994 U CN208843994 U CN 208843994U CN 201821364981 U CN201821364981 U CN 201821364981U CN 208843994 U CN208843994 U CN 208843994U
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- 239000002253 acid Substances 0.000 title claims abstract description 49
- 239000003208 petroleum Substances 0.000 title claims abstract description 42
- 230000008929 regeneration Effects 0.000 title claims abstract description 18
- 238000011069 regeneration method Methods 0.000 title claims abstract description 18
- 239000010802 sludge Substances 0.000 claims abstract description 41
- 239000007788 liquid Substances 0.000 claims abstract description 34
- 239000000203 mixture Substances 0.000 claims abstract description 31
- 238000004062 sedimentation Methods 0.000 claims abstract description 20
- 239000000376 reactant Substances 0.000 claims abstract description 10
- 238000000465 moulding Methods 0.000 claims abstract description 3
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- 238000001914 filtration Methods 0.000 claims description 15
- 238000000926 separation method Methods 0.000 claims description 14
- 238000001179 sorption measurement Methods 0.000 claims description 14
- 239000006185 dispersion Substances 0.000 claims description 13
- 238000004064 recycling Methods 0.000 claims description 10
- 238000005469 granulation Methods 0.000 claims description 9
- 230000003179 granulation Effects 0.000 claims description 9
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- 238000010008 shearing Methods 0.000 claims description 4
- 230000001174 ascending effect Effects 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 20
- 238000009987 spinning Methods 0.000 abstract 6
- 239000003995 emulsifying agent Substances 0.000 abstract 2
- 239000007970 homogeneous dispersion Substances 0.000 abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 26
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 239000003921 oil Substances 0.000 description 16
- 238000001035 drying Methods 0.000 description 13
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 12
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 11
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 10
- 235000011187 glycerol Nutrition 0.000 description 10
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 9
- 239000002699 waste material Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 150000001298 alcohols Chemical class 0.000 description 6
- 125000003118 aryl group Chemical group 0.000 description 6
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 6
- 229920000180 alkyd Polymers 0.000 description 5
- 125000002619 bicyclic group Chemical group 0.000 description 5
- 125000002950 monocyclic group Chemical group 0.000 description 5
- 238000004321 preservation Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000002441 reversible effect Effects 0.000 description 4
- 239000000084 colloidal system Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 3
- 125000003367 polycyclic group Chemical group 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001172 regenerating effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000006277 sulfonation reaction Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000000265 homogenisation Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
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- 238000012545 processing Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000005711 Benzoic acid Substances 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
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- 238000001816 cooling Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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- 125000001117 oleyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])/C([H])=C([H])\C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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- Water Treatment By Sorption (AREA)
Abstract
The utility model provides a kind of regeneration treatment system of acid residuals of petroleum, including homogeneous dispersion emulsifier unit, spinning liquid constant temperature sedimentation device, underwater granulating device, vacuum concentrating apparatus；The homogeneous dispersion emulsifier unit is connect with spinning liquid constant temperature sedimentation device, carries out high speed shear to reactant；The spinning liquid constant temperature sedimentation device carries out the sedimentation of spinning liquid constant temperature to the mixture after reaction, and oily mixture is separated with solution；The underwater granulating device is connect with spinning liquid constant temperature sedimentation device, carries out underwater curing molding to isolated oily mixture；The vacuum concentrating apparatus is connect with spinning liquid constant temperature sedimentation device, is concentrated in vacuo to isolated solution.The regeneration treatment system of the acid residuals of petroleum of the utility model can carry out harmless treatment to acid sludge, and acid residuals of petroleum is converted into useful resources.
Description
Technical Field
The utility model relates to a petrochemical field especially relates to a regeneration processing system of petroleum acid sludge.
Background
The existing acid sludge treatment method mainly uses incineration, the generated waste gas can cause great harm to the environment and human bodies, and a set of regeneration treatment system which can carry out harmless treatment and resource utilization on acid sludge is still lacked in the prior art.
Thus, there is still a need for improvement and development of the prior art.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a regeneration treatment system of petroleum acid sludge can carry out innocent treatment to the acid sludge, and turns into useful resources to petroleum acid sludge.
The technical scheme of the utility model as follows:
a regeneration treatment system for petroleum acid sludge comprises a dispersion homogenizing and emulsifying device, a rotary liquid constant-temperature settling device, an underwater granulation device and a vacuum concentration device;
the dispersion homogenizing and emulsifying device is connected with the rotary liquid constant-temperature settling device and is used for shearing the reactant at a high speed;
the rotary liquid constant-temperature settling device performs rotary liquid constant-temperature settling on the reacted mixture, and the oily mixture is separated from the solution;
the underwater granulation device is connected with the rotary liquid constant-temperature sedimentation device and used for carrying out underwater solidification molding on the separated oily mixture;
and the vacuum concentration device is connected with the rotary liquid constant-temperature settling device and is used for carrying out vacuum concentration on the separated solution.
The regeneration treatment system of the petroleum acid sludge comprises an adsorption filtering device, wherein the adsorption filtering device is arranged between a rotary liquid constant-temperature settling device and a vacuum concentration device and is used for filtering separated solution.
The regeneration treatment system for the petroleum acid sludge comprises a rotary liquid constant-temperature settling device, a circulating pump and a circulating pump, wherein the rotary liquid constant-temperature settling device comprises a tank body and a hydrocyclone arranged in the tank body; the hydrocyclone separator comprises a feed inlet communicated with the dispersion homogeneous emulsifying device and a hydrocyclone drain outlet communicated with the interior of the tank body; the hydrocyclone sewage outlet is arranged at the lower part of the hydrocyclone separator.
The system for regenerating and treating the petroleum acid sludge comprises a hydrocyclone, a cyclone separator and a water tank, wherein the hydrocyclone also comprises an overflow port arranged at the upper part of the hydrocyclone.
The regeneration treatment system of the petroleum acid sludge is characterized in that a second heat insulation layer is arranged on the outer wall of the tank body.
The system for regenerating and treating the petroleum acid sludge is characterized in that a plurality of hydrocyclones are arranged to form multi-stage hydrocyclone separation; the overflow port of the previous stage hydrocyclone separator is communicated with the feed inlet of the next stage hydrocyclone separator.
The system for regenerating and treating the petroleum acid sludge comprises a plurality of hydrocyclones which are sequentially arranged in a spiral ascending manner.
The regeneration treatment system for the petroleum acid sludge is characterized in that a check valve is arranged at a rotary liquid sewage draining port.
The regeneration treatment system of the petroleum acid sludge, wherein the tank body also comprises a tank body drain outlet communicated with the vacuum concentration device.
The system for recycling the petroleum acid sludge comprises a rotary liquid separator, a first feeding pipe, a second feeding pipe and a dispersing, homogenizing and emulsifying device, wherein the rotary liquid separator further comprises the second feeding pipe, one end of the second feeding pipe is connected with a feeding hole, and the other end of the second feeding pipe is connected with the dispersing, homogenizing and emulsifying device.
The utility model has the advantages that: the utility model provides a regeneration treatment system of petroleum acid sludge can carry out innocent treatment to the acid sludge, and turns into useful resources to the petroleum acid sludge.
Drawings
FIG. 1 is a schematic view of a system for recycling acid sludge from petroleum production according to the present invention.
Fig. 2 is an enlarged view of the hydrocyclone thermostatic sedimentation device of fig. 1.
Fig. 3 is a top view of fig. 2.
Description of reference numerals: 100. a dispersing, homogenizing and emulsifying device; 110. a first feed tube; 200. a rotary liquid constant temperature sedimentation device; 210. a tank body; 220. a hydrocyclone separator; 221. a one-way valve; 222. a second feed tube; 223. a rotary liquid blow-off pipe; 224. an overflow pipe; 225. a first stage hydrocyclone; 226. a second stage hydrocyclone; 227. a third stage hydrocyclone separator; 228. a fourth stage hydrocyclone; 300. an underwater pelletizing device; 400. a vacuum concentration device; 500. an adsorption filtration device; 610. a first delivery pipe; 620. a second delivery pipe; 630. a third delivery pipe; 640. a fourth delivery pipe; 650. a return pipe; 660. and (4) a pump.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
As shown in FIG. 1, the utility model provides a regeneration treatment system for petroleum acid sludge, which comprises a dispersion homogenizing and emulsifying device 100, a rotary liquid constant temperature sedimentation device 200, an underwater granulation device 300 and a vacuum concentration device 400.
The dispersion homogenizing and emulsifying device 100 is connected with a rotary liquid constant-temperature settling device 200 to carry out high-speed shearing on reactants; the hydrocyclone constant temperature sedimentation device 200 carries out hydrocyclone constant temperature sedimentation on the mixture after reaction, and the oily mixture is separated from the solution; the underwater granulation device 300 is connected with the rotary liquid constant-temperature sedimentation device 200, and the separated oily mixture is cured and formed underwater; the vacuum concentration device 400 is connected with the hydrocyclone constant temperature sedimentation device 200, and vacuum concentration is carried out on the separated solution.
The utility model discloses an among the harmless processing of petroleum acid residue, mainly handle aromatic acid and aromatic hydrocarbon sulfonic acid in the petroleum acid residue, utilize waste not dry oil (hogwash oil), add excessive alcohols and water again, obtain building pitch material and concentrated sulfuric acid to reach the effect of treating waste with the waste, changing waste into valuables. The principle and the process of the harmless treatment of the petroleum acid sludge are as follows:
first, the petroleum acid sludge, waste non-drying oil (hogwash oil), excess alcohols, and excess water are heated and sheared at high speed in the dispersing, homogenizing and emulsifying apparatus 100, and the following two reactions occur in the dispersing, homogenizing and emulsifying apparatus 100:
the first reaction: aromatic acid in the petroleum acid residue is subjected to polymerization reaction with waste non-drying oil and alcohol to generate water and non-drying oil alkyd resin, and the heating temperature is 90-150 ℃. When the aromatic acid is phthalic acid and the alcohol is glycerin (crude glycerin), the polymerization equation is as follows:
wherein,is a non-drying oil alkyd resin,is waste non-drying oil. The above chemical reaction formula is carried out by taking phthalic acid and glycerol as examplesIn the actual reaction, the aromatic acid may be an aromatic acid having two benzene rings or a polycyclic aromatic acid having a plurality of benzene rings, in addition to an aromatic acid having one benzene ring such as benzoic acid or phthalic acid, and the alcohol may be a polyhydric alcohol such as ethylene glycol, in addition to glycerin.
When the aromatic acid is polycyclic and the alcohol is ethylene glycol, the polymerization equation is as follows:
wherein,is a polycyclic aromatic acid, and is characterized in that,is the ethylene glycol, and the ethylene glycol,is a non-drying oleo-alkyd resin.
The second reaction: because the petroleum acid sludge contains substances such as sulfuric acid, sulfonated substances, sulfides, oils, colloids and asphaltenes, the sulfuric acid in the petroleum acid sludge is dissolved after the petroleum acid sludge is mixed with hot water, the dissolved sulfuric acid reacts with the oils (aromatic hydrocarbons) to generate aromatic sulfonic acid and colloid sulfonic acid, and then the aromatic sulfonic acid and the colloid sulfonic acid are reduced into monocyclic, bicyclic or fused ring aromatic hydrocarbon and sulfuric acid (reverse reaction of sulfonation), and the equation of the reverse reaction of the sulfonation reaction and the sulfonation is expressed as follows:
wherein the above ArH represents a monocyclic, bicyclic or fused aromatic hydrocarbon.
In order to increase the conversion rate of the aromatic sulfonic acid in the reversible reaction, the amount of the added water is twice of that of the aromatic sulfonic acid, the chemical equilibrium is moved to the reverse reaction direction, the conversion rate of the aromatic sulfonic acid is maximized, and the aromatic sulfonic acid is almost reduced to monocyclic, bicyclic or condensed ring aromatic hydrocarbon when the reaction is complete.
Then, the acid sludge after the two reactions contains a large amount of sulfuric acid, water and crude glycerol wrapped by oil, so that the mixture after the reaction needs to be separated in a hydrocyclone constant-temperature settling device 200, the hydrocyclone separation is carried out under the constant-temperature condition, and the temperature of the hydrocyclone separation is 90-150 ℃, so that the mixture can be separated more easily. Under the action of centrifugal force, the oily mixture with lower density (monocyclic, bicyclic or condensed ring aromatic hydrocarbon and non-drying oleoresin) in the mixture rises and overflows, and the solution with higher density (sulfuric acid, water and crude glycerin) flows out from the lower part.
And then, enabling the oily mixture (mainly comprising monocyclic, bicyclic or fused ring aromatic hydrocarbon and non-drying oleyl acid resin) subjected to hydrocyclone separation to enter an underwater granulation device 300 for underwater solidification and forming, and cooling and solidifying to obtain the building asphalt material. The solution separated from the lower part enters a vacuum concentration device 400 for vacuum concentration, sulfuric acid in the solution is concentrated into 95% concentrated sulfuric acid, and neutral solution (water and crude glycerin) overflows and reflows to the dispersion homogenizing emulsification device 100 for recycling.
In one embodiment of the present invention, any one of the prior art is adopted for the dispersing, homogenizing and emulsifying device 100, the underwater granulating device 300, the vacuum concentrating device 400 and the adsorption filtering device 500. Wherein, the dispersing, homogenizing and emulsifying device 100 can adopt a vacuum homogenizing and emulsifying machine as shown in patent 201721561128.0, and comprises a heating component, a stirring component, a first feeding hole and a first discharging hole, reactants (petroleum acid sludge, waste non-drying oil, excessive alcohols and excessive water) subjected to petroleum acid sludge regeneration treatment enter the dispersing, homogenizing and emulsifying device 100 from the first feeding hole, the reactants are heated to a certain temperature (90-150 ℃) by the heating component, and the temperature is maintained until the reaction is complete; the stirring component carries out high-speed shearing to the reactant, makes the reactant emulsify dispersion mixing evenly, and the abundant reaction between the reactant, the mixture after the reaction gets into hydrocyclone constant temperature sedimentation device 200 through first discharge gate, pump 660. Further, the underwater pelletizer 300 may employ the underwater pelletizer 300 as disclosed in patent CN 201120156477.0. The vacuum concentration apparatus 400 can adopt a CN201810463009.4 dilute sulfuric acid vacuum concentration apparatus 400.
In addition, the regeneration treatment system of the petroleum acid sludge further comprises an adsorption filtering device 500, wherein the adsorption filtering device 500 is arranged between the rotary liquid constant-temperature settling device 200 and the vacuum concentration device 400 and is used for filtering the separated solution. In the present embodiment, the adsorption filter device 500 is preferably an activated carbon adsorption filter device 500, such as a multi-layer activated carbon adsorption filter device 500 of CN 201710717145.7.
Specifically, the dispersing, homogenizing and emulsifying device 100 is provided with a first feeding pipe 110 and a first feeding port, the first feeding pipe 110 is connected to the first feeding port, and reactants (mainly including petroleum acid sludge, waste non-drying oil, excess alcohols and excess water) enter the dispersing, homogenizing and emulsifying device 100 through the first feeding pipe 110 and the first feeding port to react; a first conveying pipe 610 and a pump 660 are arranged between the dispersion homogenizing and emulsifying device 100 and the rotary liquid constant-temperature settling device 200, and a mixture (mainly comprising aromatic hydrocarbon, non-drying oleoresin, sulfuric acid, water and alcohols) after reaction enters the rotary liquid constant-temperature settling device 200 through the first conveying pipe 610 and the pump 660 for separation; a second conveying pipe 620 is arranged between the rotary liquid constant-temperature settling device 200 and the underwater granulation device 300, and the separated oily mixture (mainly comprising aromatic hydrocarbon and non-drying oil alkyd resin) enters the underwater granulation device 300 through the second conveying pipe 620 to be cured and formed underwater; a third conveying pipe 630 is arranged between the rotary liquid constant-temperature settling device 200 and the adsorption filtering device 500, and the separated solution (mainly comprising sulfuric acid, water and alcohols) enters the adsorption filtering device 500 through the third conveying pipe 630 for filtering; a fourth conveying pipe 640 is arranged between the adsorption filtering device 500 and the vacuum concentration device 400, and the filtered solution enters the vacuum concentration device 400 through the fourth conveying pipe 640 for vacuum concentration; a return pipe 650 is arranged between the vacuum concentration device 400 and the dispersion and homogenization device 100, and the neutral solution (mainly including water and crude glycerin) overflowing from the vacuum concentration device 400 flows back to the dispersion and homogenization device 100 through the return pipe 650 for reuse.
As shown in fig. 2, in one embodiment of the hydrocyclone apparatus 200, the hydrocyclone apparatus 200 includes a tank 210 and a hydrocyclone 220 disposed in the tank 210. The hydrocyclone 220 comprises a second feed inlet communicated with the first conveying pipe 610 and a hydrocyclone sewage draining outlet communicated with the interior of the tank body 210, and the hydrocyclone sewage draining outlet is arranged at the lower part of the hydrocyclone 220. The hydrocyclone 220 may be any one of existing hydrocyclones 220. The shell of the tank 210 and the shell of the hydrocyclone 220 are both made of anticorrosive materials.
Specifically, the hydrocyclone 220 further comprises an overflow port arranged on the upper portion of the hydrocyclone 220, the second feed inlet is connected with a second feed pipe 222, the second feed pipe 222 is communicated with the first conveying pipe 610, the hydrocyclone drain is connected with a hydrocyclone drain pipe 223, and the overflow port is connected with an overflow pipe 224. The inner wall of one end of the second feeding pipe 222 is tangent to the inner wall of the hydrocyclone 220, so that the reacted mixture enters from the tangential direction, and the other end of the second feeding pipe 222 is connected with the pump 660 and the first conveying pipe 610; the lower part of the hydrocyclone 220 is arranged in a funnel shape, a hydrocyclone sewage outlet is arranged at the bottom of the funnel, and a hydrocyclone sewage discharge pipe 223 drains separated heavy solution (water, glycerol and sulfuric acid) to the space between the inside of the tank body 210 and the outside of the hydrocyclone 220, so that the space between the inside of the tank body 210 and the outside of the hydrocyclone 220 is filled with the heavy solution, and a first heat preservation layer is formed outside the hydrocyclone 220 by utilizing the residual heat of the heavy solution.
In order to improve the heat preservation effect of the hydrocyclone constant temperature sedimentation device 200, a second heat preservation layer is arranged on the outer wall of the tank body 210, and the second heat preservation layer is formed by wrapping any existing heat preservation material outside the tank body 210.
To prevent the backflow of the heavy solution after it exits the hydrocyclone 220, a check valve 221 is provided at the hydrocyclone blowdown port, the check valve 221 allowing the heavy solution to exit the hydrocyclone 220 and preventing the heavy solution from flowing back into the hydrocyclone 220 from outside the hydrocyclone 220.
The tank 210 is provided with a tank drain outlet, which is connected with the third conveying pipe 630, the tank drain outlet is communicated with the adsorption filtering device 500 through the third conveying pipe 630, the tank drain outlet is specifically arranged at the upper part of the tank 210, and the heavy solution between the inside of the tank 210 and the outside of the hydrocyclone 220 is discharged from the tank drain outlet.
The reacted mixture enters the hydrocyclone 220 from the second feeding pipe 222 and then spirally moves downwards, the molecules with higher density (water, glycerol and sulfuric acid) are thrown to the inner wall of the hydrocyclone 220 under the action of inertial centrifugal force and fall to the bottom of a funnel of the hydrocyclone 220 along with the cyclone to form an outer cyclone which spirally falls, and finally water molecules are discharged from a cyclone discharge pipe 223 at the bottom; the oil molecules (aromatic hydrocarbons, non-drying oil alkyd resins) having a lower density form an inner swirling flow spirally rising in the hydrocyclone 220, are discharged from the overflow port and the overflow pipe 224 at the upper part of the hydrocyclone 220, and flow to the underwater pelletizer 300 through the second transfer pipe 620. In practical application, overflow mouth department is equipped with detection device, detects the upper mixture of separating, and when the testing result reached the requirement of building pitch, upper mixture just discharged from the overflow mouth, and when the testing result did not reach the requirement of building pitch, the mixture continued to stop in hydrocyclone 220 carries out the sedimentation separation, discharged again after the testing result reached the requirement.
When hydrocyclone 220 sets up to one, the separation effect of mixture can not satisfy the demands, consequently, in this embodiment, hydrocyclone 220 sets up to a plurality ofly, specifically can set up 3~6 according to the volume of jar body 210, forms multistage hydrocyclone separation, and the overflow mouth of preceding stage hydrocyclone 220 communicates with the second feed inlet of the next stage hydrocyclone 220, and the overflow pipe 224 of the last stage hydrocyclone 220 communicates with second conveyer pipe 620. Specifically, when the number of the hydrocyclones 220 is four, as shown in fig. 3, the four hydrocyclones 220 are respectively a first stage hydrocyclone 225, a second stage hydrocyclone 226, a third stage hydrocyclone 227 and a fourth stage hydrocyclone 228, so as to form four-stage hydrocyclone separation, the overflow port of the first stage hydrocyclone 225 is communicated with the second feed port of the second stage hydrocyclone 226, and the mixture overflowing from the overflow port of the first stage hydrocyclone 225 enters the second stage hydrocyclone 226 from the second feed port of the second stage hydrocyclone 226 to perform the second hydrocyclone separation; the overflow port of the second-stage hydrocyclone 226 is communicated with the second feed port of the third-stage hydrocyclone 227, and the mixture overflowing from the overflow port of the second-stage hydrocyclone 226 enters the third-stage hydrocyclone 227 from the second feed port of the third-stage hydrocyclone 227 for third hydrocyclone separation; an overflow port of the third-stage hydrocyclone 227 is communicated with a second feeding port of the fourth-stage hydrocyclone 228, a mixture overflowing from the overflow port of the third-stage hydrocyclone 227 enters the fourth-stage hydrocyclone 228 from a second feeding port of the fourth-stage hydrocyclone 228 to perform fourth hydrocyclone separation, when a detection device at the overflow port of the fourth-stage hydrocyclone 228 detects that data at the overflow port meet requirements, the mixture at the upper layer is discharged through the overflow pipe 224, and when the detection data do not meet the requirements, the mixture can continuously stay in the fourth-stage hydrocyclone 228 to perform sedimentation separation until the detection result meets the requirements and then is discharged. The solutions flowing out of the hydrocyclone outlets of the first stage 225, the second stage 226, the third stage 227 and the fourth stage 228 are converged into the space inside the tank 210 and the space outside the hydrocyclone 220. A height difference is formed between each hydrocyclone 220 and the previous hydrocyclone 220, and the hydrocyclone 220 of the next stage is higher than the hydrocyclone 220 of the previous stage.
In order to save more space, the hydrocyclones 220 are arranged in the tank 210 in a spiral ascending manner, that is, a height difference is formed between each hydrocyclone 220 and the previous hydrocyclone 220, the hydrocyclone 220 of the next stage is higher than the hydrocyclone 220 of the previous stage, and in the top view of fig. 3, the hydrocyclones 220 are distributed along an arc line.
In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so that the scope of the present invention shall be determined by the scope of the appended claims.
Claims (10)
1. A regeneration treatment system for petroleum acid sludge is characterized by comprising a dispersion homogenizing and emulsifying device, a rotary liquid constant-temperature settling device, an underwater granulation device and a vacuum concentration device;
the dispersion homogenizing and emulsifying device is connected with the rotary liquid constant-temperature settling device and is used for shearing the reactant at a high speed;
the rotary liquid constant-temperature settling device performs rotary liquid constant-temperature settling on the reacted mixture, and the oily mixture is separated from the solution;
the underwater granulation device is connected with the rotary liquid constant-temperature sedimentation device and used for carrying out underwater solidification molding on the separated oily mixture;
and the vacuum concentration device is connected with the rotary liquid constant-temperature settling device and is used for carrying out vacuum concentration on the separated solution.
2. The system for recycling the acid sludge in petroleum according to claim 1, further comprising an adsorption filtration device disposed between the cyclone constant temperature settling device and the vacuum concentration device for filtering the separated solution.
3. The system for recycling the petroleum acid sludge according to claim 1, wherein the hydrocyclone constant temperature sedimentation device comprises a tank body, and a hydrocyclone arranged in the tank body; the hydrocyclone separator comprises a feed inlet communicated with the dispersion homogeneous emulsifying device and a hydrocyclone drain outlet communicated with the interior of the tank body; the hydrocyclone sewage outlet is arranged at the lower part of the hydrocyclone separator.
4. The system of claim 3, wherein the hydrocyclone further comprises an overflow outlet disposed at an upper portion of the hydrocyclone.
5. The system for recycling the acid sludge in petroleum according to claim 3, wherein a second insulating layer is provided on the outer wall of the tank body.
6. The system for recycling the acid sludge in the petroleum according to claim 4, wherein the hydrocyclones are arranged in a plurality of stages to form multi-stage hydrocyclone separation; the overflow port of the previous stage hydrocyclone separator is communicated with the feed inlet of the next stage hydrocyclone separator.
7. The system for recycling acid sludge in petroleum according to claim 6, wherein the plurality of hydrocyclones are arranged in a spiral ascending manner in sequence.
8. The system for recycling acid sludge in petroleum according to claim 3, wherein a check valve is provided at the cyclone drain.
9. The system of claim 3, wherein the tank further comprises a tank drain in communication with the vacuum concentration device.
10. The system for recycling the acid sludge in the petroleum according to claim 3, wherein the hydrocyclone further comprises a second feeding pipe, one end of the second feeding pipe is connected with the feeding port, and the other end of the second feeding pipe is connected with the dispersing, homogenizing and emulsifying device.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108913183A (en) * | 2018-08-23 | 2018-11-30 | 佛山市光烨环保科技有限公司 | A kind of regeneration and treatment technique and its processing system of acid residuals of petroleum |
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2018
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108913183A (en) * | 2018-08-23 | 2018-11-30 | 佛山市光烨环保科技有限公司 | A kind of regeneration and treatment technique and its processing system of acid residuals of petroleum |
| CN108913183B (en) * | 2018-08-23 | 2024-01-23 | 袁勇 | Regeneration treatment process and treatment system for petroleum acid sludge |
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