CN109517621B - Continuous oil slurry electrostatic separation device, separation system and separation method - Google Patents
Continuous oil slurry electrostatic separation device, separation system and separation method Download PDFInfo
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- CN109517621B CN109517621B CN201811623442.6A CN201811623442A CN109517621B CN 109517621 B CN109517621 B CN 109517621B CN 201811623442 A CN201811623442 A CN 201811623442A CN 109517621 B CN109517621 B CN 109517621B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G53/00—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes
- C10G53/02—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes plural serial stages only
- C10G53/08—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes plural serial stages only including at least one sorption step
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G32/00—Refining of hydrocarbon oils by electric or magnetic means, by irradiation, or by using microorganisms
- C10G32/02—Refining of hydrocarbon oils by electric or magnetic means, by irradiation, or by using microorganisms by electric or magnetic means
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Abstract
The invention provides a continuous oil slurry electrostatic separation device, a separation system and a separation method. The invention comprises an outer cylinder, wherein an inner cylinder coaxially arranged is arranged in the outer cylinder, and a plurality of partition plates arranged along the vertical direction are arranged between the inner cylinder and the outer cylinder; the top of the outer cylinder is provided with a top cover which is rotationally connected with the outer cylinder, and the top cover is provided with an oil slurry inlet and a flushing fluid inlet; the bottom of the outer cylinder is provided with a sieve plate, the bottom of the sieve plate is provided with a bottom cover rotationally connected with the sieve plate, and the bottom cover is provided with an oil slurry outlet and a flushing fluid outlet. The flushing fluid is injected from the flushing fluid inlet and is discharged from the flushing fluid outlet, then the top cover is rotated, the slurry oil is injected into the treatment area from the slurry oil inlet for purification treatment, then the bottom cover is rotated, and the treated slurry oil is discharged from the slurry oil outlet and is circulated in turn; the invention realizes continuous production, has no interference between the flushing process and the purifying treatment process, is convenient to flush, has higher separation efficiency, can be adjusted according to different working conditions, has wide application range and is easy to realize automatic control.
Description
Technical Field
The invention relates to the technical field of oil slurry purification treatment, in particular to a continuous oil slurry electrostatic separation device, a separation system and a separation method.
Background
At present, the annual processing amount of catalytic cracking in China is over 1.5 hundred million tons, the yield of slurry oil accounts for about 5-10% of the catalytic cracking processing amount, and the yield of the byproduct slurry oil of catalytic cracking is increased year by year. Because the catalytic cracking slurry oil contains a large amount of catalyst particles and polycyclic aromatic hydrocarbon, the catalyst is easy to coke and release a large amount of heat in the recycling process, so that the safety and stability of the device are reduced; moreover, the product properties and quality of catalytic cracking are severely affected. Therefore, in order to increase the throughput of a catalytic cracker, refineries generally take countermeasures to reduce the slurry withdrawal ratio and increase the yield of the slurry which is thrown outward.
The external oil slurry contains solid particles such as catalyst and the like, and seriously affects the quality and reutilization of the oil slurry. At present, the purification treatment method of the external oil slinger mainly comprises a natural sedimentation method, a centrifugal separation method, a filtering separation method, a solvent extraction method, an electrostatic separation method and the like. Although the natural sedimentation method has simple equipment, low running cost and easy operation, the sedimentation time is long, the separation temperature is high, the occupied area is large, the separation efficiency is low, and the deep processing requirement is difficult to achieve. The centrifugal separation method has good removal effect on solid particles with the size of more than 10 mu m, and in industrial production, a plurality of high-power centrifuges are needed to be equipped, so that the investment is high and the operation cost is high. The filtering separation method has the advantages of common industrial application, lower operation cost and better removal effect on solid particles with large particle size, but a special filter needs to be developed when micron-sized fine particles are removed, and development of a filtering material and back flushing of the filter are all difficulties in the technology. The solvent extraction method has the advantages of large solvent consumption and higher running cost, and can transfer most of particles into the raffinate oil, but the main problems are that the yield of the raffinate oil is too low, and a large amount of raffinate oil is difficult to find a way. The method of high-voltage electrostatic adsorption is used for removing solid particles in the external oil slinger, which is an oil slurry purifying treatment technology developed in recent years, and is mainly suitable for separating solid particles with smaller particle size. At present, the method often has the phenomena of medium conductivity rise, operation voltage drop and purification efficiency drop in industrial production, thereby causing frequent tripping of a power supply, increasing back flushing frequency, deteriorating device stability, increasing operation difficulty and poor application effect.
Disclosure of Invention
The invention provides a continuous slurry oil electrostatic separation device, a separation system and a separation method, which solve the problems that the slurry oil high-voltage electrostatic adsorption method in the prior art has a large back flushing frequency and poor device stability, so that continuous treatment and poor application effect cannot be realized.
The invention relates to a continuous oil slurry electrostatic separation device, which is realized by the following technical scheme: the cathode type solar energy collector comprises an outer cylinder, wherein the outer cylinder is a cathode, an inner cylinder which is coaxially arranged is arranged in the outer cylinder, the inner cylinder is an anode, a plurality of partition boards which are arranged along the vertical direction are arranged between the inner cylinder and the outer cylinder, the partition boards divide the space between the inner cylinder and the outer cylinder into a plurality of treatment areas, and filler is arranged in the treatment areas; the top of the outer cylinder is provided with a top cover which is rotationally connected with the outer cylinder, and the top cover is provided with an oil slurry inlet and a flushing fluid inlet; a screen plate is arranged at the bottom of the outer cylinder and is fixedly connected with the outer cylinder; the bottom of the sieve plate is provided with a bottom cover which is rotationally connected with the sieve plate, and the bottom cover is provided with an oil slurry outlet which is matched with the oil slurry inlet and a flushing fluid outlet which is matched with the flushing fluid inlet.
The outer cylinder is made of stainless steel materials, the outer cylinder is a cathode and is in a hollow cylinder shape, the inner cylinder is made of copper materials, the inner cylinder is an anode, the inner cylinder can also be in a hollow cylinder shape, and high-voltage power with the voltage of 5-13Kv is applied between the outer cylinder and the inner cylinder; a plurality of independent treatment areas are formed between the outer cylinder and the inner cylinder through the partition plates, and each treatment area can independently finish the operations of flushing, high-voltage electrostatic treatment and discharging the treated slurry oil under the rotation action of the top cover and the bottom cover. Flushing liquid is injected from a flushing liquid inlet to flush the filling material in the treatment area, and the flushed flushing liquid is discharged from a flushing liquid outlet; and then rotating the top cover, injecting the slurry oil into the treatment area from the slurry oil inlet to perform high-voltage electrostatic separation treatment, rotating the bottom cover after the treatment is finished, aligning the slurry oil outlet on the bottom cover with the sieve holes of the sieve plate on the high-voltage electrostatic treatment area, discharging the purified slurry oil from the slurry oil outlet, and sequentially circulating. The invention meets the requirement of continuous production, has the advantages of no interference between the flushing process and the purifying treatment process, convenient flushing, less flushing frequency, higher separation efficiency, good running stability, wide application range and easy realization of automatic control, and can be regulated according to different working conditions.
As a preferred implementation scheme, the outside of sieve is equipped with the fixing base, the outside of urceolus is equipped with the solid fixed ring, gu fixed ring with the fixing base passes through the fastener and connects. The sieve passes through fixing base and urceolus fixed connection, and is convenient to connect, and is fixed firm, and moreover, the sieve can be dismantled, convenient washing, maintenance and the maintenance to the sieve. The fastener may be any one of a bolt, a screw, or a rivet. In general, the fixing seat and the sieve plate are integrally arranged, a plurality of sieve holes are formed in the sieve plate, and the fixing ring is fixed on the outer wall of the outer cylinder.
As a preferred implementation scheme, be equipped with between fixing base with the sieve with the first draw-in groove of urceolus looks adaptation, be equipped with on the sieve with the separating groove of baffle looks adaptation. According to the invention, the outer cylinder is connected with the sieve plate in a clamping way, the outer cylinder is clamped into the first clamping groove, and the sealing ring can be arranged in the first clamping groove, so that the sealing connection of the outer cylinder and the sieve plate is realized, the connection is simple, the sealing performance is good, and the leakage of slurry oil is prevented. Also, under the effect of separating groove, the baffle is dismantled into the inside of sieve, keeps apart effectually, has fully guaranteed the independence of each treatment district, makes each other noninterference between them.
As a preferred embodiment, the bottom cover is provided with a central hole matched with the inner cylinder, and the bottom cover is connected with the inner cylinder through the central hole. The inner cylinder extends up and down in the outer cylinder, the inner cylinder extends up to the inside of the top cover, and a rotating hole matched with the inner cylinder is formed in the inside of the top cover; the inner tube downwardly extending, pass the inside that the sieve extends to the bottom, be equipped with the through-hole on the sieve, the inner tube passes the through-hole and reaches the central hole on the bottom, makes the bottom fix on the inner tube through the mounting in the inside of bottom, for example: the inner cylinder is provided with a positioning hole, and a positioning pin matched with the positioning hole is arranged in the positioning hole, so that the bottom cover is limited to move in the vertical direction. The inner cylinder is connected inside the bottom cover, so that the whole device is neat in appearance.
As a preferred implementation scheme, the bottom of sieve is equipped with the bulge loop, be equipped with on the bottom the recess of bulge loop looks adaptation. Under the jogged effect of bulge loop and recess, realized the fastening connection of sieve and bottom in the vertical direction, simultaneously, still can realize the rotary motion of bottom. Under normal conditions, the top cover and the bottom cover are driven by the variable frequency motor to rotate, and the rotation speed can be adjusted according to different working conditions. According to different working conditions, the rotating speed of the motor can be adjusted so as to control the rotating speed of the top cover and the bottom cover, and the static separation time and the flushing time can be adjusted so as to achieve the maximum benefit.
As a preferred embodiment, the bottom cover comprises a first cover body, a second cover body and a cover edge connected with the first cover body and the second cover body, slurry sieve holes and flushing liquid sieve holes which are respectively matched with the slurry outlet and the flushing liquid outlet are formed in the first cover body, the slurry outlet and the flushing liquid outlet are both fixed on the second cover body, and the slurry outlet and the flushing liquid outlet are both in funnel-shaped arrangement. The bottom cover consists of a first cover body, a second cover body and a cover edge, the appearance is clean, and the slurry sieve holes and the flushing liquid sieve holes are corresponding to the sieve holes on the sieve plate after rotating; during flushing, the flushing fluid inlet is aligned with the flushing fluid outlet in the axial direction, and the flushing fluid sieve holes are aligned with the sieve holes of the sieve plate; when the electrostatically processed slurry is separated, the slurry holes are aligned with the holes of the screen plate. The oil slurry outlet and the flushing fluid outlet extend upwards to be directly fixed at the bottom of the first cover body, the oil slurry sieve holes and the flushing fluid sieve holes are gathered respectively, and purified oil slurry and flushing fluid which come out of the oil slurry sieve holes and the flushing fluid sieve holes enter the oil slurry outlet and the flushing fluid outlet respectively; the slurry oil outlet and the flushing fluid outlet extend downwards to be fixed on the second cover body and are exposed to the outer side of the second cover body, so that the slurry oil storage tank and the flushing fluid storage tank are conveniently connected, the appearance is clean, and the liquid outlet is smooth.
As a preferred implementation scheme, be equipped with on the top cap with the second draw-in groove of urceolus looks adaptation, the filler is spherical glass pearl, the diameter size of spherical glass pearl is 0.8-4.0mm. The top cover is connected with the outer barrel in a clamping way through the second clamping groove, the outer barrel is clamped into the second clamping groove, a sealing ring can be arranged in the second clamping groove, the sealing connection between the outer barrel and the top cover is realized, the connection is simple, the sealing performance is good, and the outer barrel can freely rotate.
As a preferred embodiment, the outer cylinder is provided with an overflow port. The middle upper part of the outer cylinder is provided with an overflow port, and when the oil inlet quantity is excessive, the excessive oil slurry can be led out through the overflow port. In general, the pump of slurry inlet is connected with pressure pulsation sensor, when the overflow port has slurry to flow, stops the pump, prevents the flow of slurry too big. In general, the number of the partition plates is six, namely six independent treatment areas are arranged between the outer cylinder and the inner cylinder, and the six partition plates can be freely detached and adjusted according to actual conditions, so that the size of the treatment areas is adjusted, and the ratio of the electrostatic separation time to the flushing time is controlled, so that the maximum benefit is achieved.
The invention relates to a continuous oil slurry electrostatic separation system, which is realized by the following technical scheme: comprising a continuous slurry electrostatic separation device according to any one of the preceding claims; the input end of the continuous slurry electrostatic separation device is connected with a pretreatment slurry storage tank through a buffer tank, and the output end of the continuous slurry electrostatic separation device is connected with a purified slurry storage tank; the output end of the continuous slurry oil electrostatic separation device is also connected with a flushing fluid sedimentation tank through a buffer tank, the top of the flushing fluid sedimentation tank is connected with the continuous slurry oil electrostatic separation device through the buffer tank, and the bottom of the flushing fluid sedimentation tank is connected with a high-solid-content flushing fluid storage tank.
The continuous slurry electrostatic separation system forms two closed loops, one loop is a purifying treatment loop, and the other loop is a flushing loop; the two loops are not mutually interfered, and the continuous purification treatment of the slurry oil is realized by stable operation; the washing is convenient, and the separation effect is high, can adjust according to different operating modes, and accommodation is wide, easily realizes automated control. The slurry oil with higher solid content can also be pretreated by a cyclone, then enter a pretreated slurry oil storage tank, enter a continuous slurry oil electrostatic separation device by a buffer tank to carry out high-voltage electrostatic separation treatment, and finally the purified slurry oil is obtained. A sedimentation auxiliary agent can be added into the flushing fluid sedimentation tank, and pure flushing fluid can be obtained after sedimentation and can be recycled; the ratio of the sedimentation auxiliary agent to the flushing liquid is 0.3:1, and the sedimentation auxiliary agent is preferably a mixed solvent of light oil and flushing oil.
The invention relates to a continuous oil slurry electrostatic separation method, which is realized by the following steps: the continuous slurry electrostatic separation device according to any one of the above, comprising the steps of: 1) The top cover and the bottom cover are rotated, a flushing fluid inlet on the top cover and a flushing fluid outlet on the bottom cover are positioned in the same treatment area, flushing fluid is injected into the treatment area through the flushing fluid inlet, filling materials in the treatment area are flushed, and the flushed flushing fluid is discharged through the flushing fluid outlet on the bottom cover, so that flushing work of the treatment area is completed; 2) Continuously rotating the top cover and the bottom cover, flushing the next treatment area with the flushing liquid, wherein in the treatment area flushed in the step 1), an oil slurry inlet on the top cover is aligned to the treatment area, and an oil slurry outlet on the bottom cover is not positioned in the treatment area, wherein the treatment area is a high-voltage electrostatic treatment area, and the oil slurry to be purified enters the treatment area from the oil slurry inlet to be subjected to high-voltage electrostatic purification treatment; 3) Continuously rotating the top cover and the bottom cover, continuously entering a next treatment area to perform flushing operation, injecting slurry oil into the next high-voltage electrostatic treatment area by using a slurry oil inlet, and performing high-voltage electrostatic purification treatment, wherein a slurry oil outlet on the bottom cover is aligned with a sieve hole of a sieve plate on the high-voltage electrostatic treatment area in the step 2), and discharging the purified slurry oil from the slurry oil outlet; 4) Repeating the step 3) to realize continuous purification treatment of the slurry oil.
When the oil slurry is subjected to electrostatic separation treatment, the treatment area is filled with the filler, the filler is polarized under high pressure, a strong electric field gradient is formed near the filler contact point, and the oil slurry has strong adsorption force and can adsorb solid particles; the top cover is rotated, flushing fluid is firstly injected into the treatment area from the flushing fluid inlet, the filling material is flushed, and the flushed flushing fluid is discharged from the flushing fluid outlet through corresponding sieve holes from the bottom; continuing to rotate the top cover, flushing the next treatment area with flushing liquid, injecting slurry oil into the flushed treatment area through a slurry oil inlet, and separating solid particles in the slurry oil in the high-voltage electrostatic treatment area; after the electrostatic separation treatment is finished, the bottom cover is rotated until the slurry outlet on the bottom cover coincides with the sieve mesh area on the sieve plate of the treatment area, and the treated slurry can be discharged through the slurry outlet; finally, the bottom cover and the top cover are rotated, flushing liquid is flushed again in the area, one working cycle is completed, and separation of slurry oil and solid particles is achieved; the washing frequency is low, the separation efficiency is high, and the operation stability is good.
Compared with the prior art, the invention has the beneficial effects that: a plurality of independent treatment areas are formed between the outer cylinder and the inner cylinder through the partition plates, and each treatment area can independently finish the operations of flushing, high-voltage electrostatic treatment and discharging the treated slurry oil under the rotation action of the top cover and the bottom cover. Flushing liquid is injected from a flushing liquid inlet to flush the filling material in the treatment area, and the flushed flushing liquid is discharged from a flushing liquid outlet; and then rotating the top cover, injecting the slurry oil into the treatment area from the slurry oil inlet to perform high-voltage electrostatic separation treatment, rotating the bottom cover after the treatment is finished, aligning the slurry oil outlet on the bottom cover with the sieve holes of the sieve plate on the high-voltage electrostatic treatment area, discharging the purified slurry oil from the slurry oil outlet, and sequentially circulating. The invention meets the requirement of continuous production, has the advantages of no interference between the flushing process and the purifying treatment process, convenient flushing, less flushing frequency, higher separation efficiency, good running stability, wide application range and easy realization of automatic control, and can be regulated according to different working conditions.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is a schematic diagram of the front view structure of FIG. 1;
FIG. 3 is a schematic side view of the structure of FIG. 2;
FIG. 4 is a schematic top view of FIG. 2;
FIG. 5 is a schematic view of the cross-sectional structure of A-A of FIG. 2;
FIG. 6 is a schematic view of the cross-sectional structure B-B of FIG. 2;
FIG. 7 is a schematic view of the cross-sectional structure of FIG. 2 taken along the direction C-C;
FIG. 8 is a schematic view of the structure of FIG. 2 in section D-D;
FIG. 9 is a schematic view of the structure of FIG. 2 in section E-E;
FIG. 10 is a schematic view of the front perspective view of the deck of FIG. 1;
FIG. 11 is a schematic view of the reverse perspective view of the screen plate of FIG. 1;
FIG. 12 is a schematic view of the front perspective structure of the bottom cover in FIG. 1;
FIG. 13 is a schematic view showing a reverse perspective structure of the bottom cover in FIG. 1;
FIG. 14 is a schematic view of the front perspective of the top cover of FIG. 1;
FIG. 15 is a schematic view of the reverse perspective view of the top cover of FIG. 1;
FIG. 16 is a schematic plan view of an electrostatic separation system using the continuous slurry of oil of FIG. 1;
in the figure: 1-an outer cylinder; 2-overflow port; 3-fixing ring; 4-sieve plates; 5-a bottom cover; 6-fastening pieces; 7-slurry inlet; 8-flushing fluid inlet; 9-top cover; 10-flushing fluid outlet; 11-slurry outlet; 12-an inner cylinder; 13-a separator; 14-fixing base; 15-slurry screen holes; 16-flushing liquid sieve holes; 17-a first cover; 18-a cover rim; 19-dividing grooves; 20-a first clamping groove; 21-a convex ring; 22-grooves; 23-a second clamping groove; 24-a second cover;
a, pretreating an oil slurry storage tank; b-a buffer tank; c-a purified slurry oil storage tank; d-flushing fluid sedimentation tank; e-a high-solid-content flushing liquid storage tank; f-slurry electrostatic separation device.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 15, the continuous slurry electrostatic separation device F of the present invention includes an outer cylinder 1, the outer cylinder 1 is a cathode, an inner cylinder 12 coaxially disposed is disposed inside the outer cylinder 1, the inner cylinder 12 is an anode, a plurality of partitions 13 disposed along a vertical direction are disposed between the inner cylinder 12 and the outer cylinder 1, the partitions 13 divide the space between the inner cylinder 12 and the outer cylinder 1 into a plurality of treatment areas, and a filler is disposed in the treatment areas; the top of the outer cylinder 1 is provided with a top cover 9 which is rotationally connected with the outer cylinder, and the top cover 9 is provided with an oil slurry inlet 7 and a flushing fluid inlet 8; the bottom of the outer cylinder 1 is provided with a sieve plate 4, and the sieve plate 4 is fixedly connected with the outer cylinder 1; the bottom of the sieve plate 4 is provided with a bottom cover 5 which is rotationally connected with the sieve plate, and the bottom cover 5 is provided with a slurry outlet 11 which is matched with the slurry inlet 7 and a flushing fluid outlet 10 which is matched with the flushing fluid inlet 8. According to the invention, a plurality of independent treatment areas are formed between the outer cylinder 1 and the inner cylinder 12 through the partition plates 13, and each treatment area can independently finish the operations of flushing, high-voltage electrostatic treatment and discharging the treated slurry oil under the rotation action of the top cover 9 and the bottom cover 5. Flushing liquid is injected from the flushing liquid inlet 8 to flush the filling material in the treatment area, and the flushed flushing liquid is discharged from the flushing liquid outlet 10; and then the top cover 9 is rotated, slurry oil is injected into the treatment area from the slurry oil inlet 7 for high-voltage electrostatic separation treatment, after the treatment is finished, the bottom cover 5 is rotated, the slurry oil outlet 11 on the bottom cover 5 is aligned with the sieve holes of the sieve plate 4 on the high-voltage electrostatic treatment area, and the purified slurry oil is discharged from the slurry oil outlet 11 and is circulated in sequence. The invention meets the requirement of continuous production, has the advantages of no interference between the flushing process and the purifying treatment process, convenient flushing, less flushing frequency, higher separation efficiency, good running stability, wide application range and easy realization of automatic control, and can be regulated according to different working conditions.
Referring to fig. 7, 10 and 11, in this embodiment, a fixing seat 14 is disposed on the outer side of the screen plate 4, a fixing ring 3 is disposed on the outer side of the outer cylinder 1, and the fixing ring 3 and the fixing seat 14 are connected by a fastener 6. The sieve plate 4 is fixedly connected with the outer cylinder 1 through the fixing seat 14, so that the connection is convenient, the fixing is firm, and the sieve plate 4 can be detached, so that the cleaning, the overhauling and the maintenance of the sieve plate 4 are convenient. The fastener 6 may be any one of a bolt, a screw, or a rivet. Typically, the fixing base 14 and the screen plate 4 are integrally arranged, the screen plate 4 is provided with a plurality of screen holes, and the fixing ring 3 is fixed on the outer wall of the outer cylinder 1. In addition, a first clamping groove 20 matched with the outer cylinder 1 is arranged between the fixed seat 14 and the sieve plate 4, and a separation groove 19 matched with the separation plate 13 is arranged on the sieve plate 4. In the invention, the outer cylinder 1 is connected with the sieve plate 4 in a clamping way, the bottom of the outer cylinder 1 is clamped into the first clamping groove 20, and a sealing ring can be arranged in the first clamping groove 20, so that the sealing connection between the outer cylinder 1 and the sieve plate 4 is realized, the connection is simple, the sealing performance is good, and the leakage of slurry oil is prevented. Also, under the action of the separation groove 19, the partition 13 is disassembled into the sieve plate 4, so that the isolation effect is good, the independence of each treatment area is fully ensured, and the treatment areas are mutually free from interference. The bottom of the sieve plate 4 is provided with a convex ring 21, and the bottom cover 5 is provided with a groove 22 matched with the convex ring 21. Under the jogged action of the convex ring 21 and the groove 22, the fastening connection of the sieve plate 4 and the bottom cover 5 in the vertical direction is realized, and meanwhile, the rotation movement of the bottom cover 5 can also be realized. In general, the top cover 9 and the bottom cover 5 are driven by a variable frequency motor to rotate, and the rotation speed can be adjusted according to different working conditions. According to different working conditions, the rotating speed of the motor can be adjusted so as to control the rotating speeds of the top cover 9 and the bottom cover 5, and the static separation time and the flushing time can be adjusted so as to achieve the maximum benefit.
Referring to fig. 8, 9, 12 and 13, in this embodiment, the bottom cover 5 is provided with a central hole adapted to the inner cylinder 12, and the bottom cover 5 is connected to the inner cylinder 12 through the central hole. The inner cylinder 12 extends up and down in the outer cylinder 1, the inner cylinder 12 extends up to the inside of the top cover 9, and a rotating hole matched with the inner cylinder 12 is formed in the inside of the top cover 9; the inner cylinder 12 extends downward, extends to the inside of the bottom cover 5 through the screen plate 4, is provided with a through hole on the screen plate 4, the inner cylinder 12 passes through the through hole to reach the center hole on the bottom cover 5, and the bottom cover 5 is fixed on the inner cylinder 12 by a fixing member in the inside of the bottom cover 5, for example: a positioning hole is formed in the inner cylinder 12, and a positioning pin matched with the positioning hole is arranged in the positioning hole, so that the bottom cover 5 is limited to move in the vertical direction; this inner cylinder 12 is attached to the inside of the bottom cover 5, making the whole device neat in appearance. The bottom cover 5 comprises a first cover body 17, a second cover body 24 and a cover edge 18 connected with the first cover body 17 and the second cover body 24, slurry screen holes 15 and flushing liquid screen holes 16 respectively matched with the slurry outlet 11 and the flushing liquid outlet 10 are formed in the first cover body 17, the slurry outlet 11 and the flushing liquid outlet 10 are fixed on the second cover body 24, and the slurry outlet 11 and the flushing liquid outlet 10 are all arranged in a funnel shape. The bottom cover 5 consists of a first cover body 17, a second cover body 24 and a cover edge 18, the appearance is clean, the bottom cover 8 is provided with two layers of the first cover body 17 and the second cover body 24, so that the connection of the bottom cover with the inner cylinder 12 is convenient, and slurry sieve holes 15 and flushing liquid sieve holes 16 are consistent with sieve holes on the sieve plate 4 correspondingly; during flushing, the flushing fluid inlet 8 is aligned with the flushing fluid outlet 10 in the axial direction, and the flushing fluid sieve openings 16 are aligned with the sieve openings of the sieve plate 4; when the electrostatically processed slurry is separated, the slurry sieve holes 15 are aligned with the sieve holes of the sieve plate 4; the slurry outlet 11 and the flushing fluid outlet 10 extend upwards to be directly fixed at the bottom of the first cover body 17, the slurry sieve holes 15 and the flushing fluid sieve holes 16 are gathered respectively, and purified slurry and flushed flushing fluid from the slurry sieve holes 15 and the flushing fluid sieve holes 16 enter the slurry outlet 11 and the flushing fluid outlet 10 respectively; the slurry outlet 11 and the flushing fluid outlet 10 extend downwards to be fixed on the second cover body 24 and are exposed to the outer side of the second cover body 24, so that the slurry storage tank and the flushing fluid storage tank can be conveniently connected, the appearance is neat, and the liquid outlet is smooth.
Referring to fig. 4, fig. 5, fig. 6, fig. 14 and fig. 15, in this embodiment, the top cover 9 is provided with a second clamping groove 23 adapted to the outer cylinder 1, the filler is spherical glass beads, and the diameter of the spherical glass beads is 0.8-4.0mm. The top cover 9 is connected with the outer barrel 1 in a clamping way through the second clamping groove 23, the top of the outer barrel 1 is clamped into the second clamping groove 23, and a sealing ring can be arranged in the second clamping groove 23 to realize the sealing connection between the outer barrel 1 and the top cover 9, so that the device is simple in connection, good in sealing performance and free in rotation. Referring to fig. 1, 2 and 3, the outer cylinder 1 is provided with an overflow port 2. The middle upper part of the outer cylinder 1 is provided with an overflow port 2, and when the oil inlet quantity is excessive, the excessive oil slurry can be led out through the overflow port 2. Normally, the pump of the slurry inlet 7 is connected with a pressure pulsation sensor, and when the slurry flows out from the overflow port 2, the pump is stopped to prevent the slurry from flowing too much. In general, the number of the separation plates 13 is six, that is, six independent treatment areas are arranged between the outer cylinder 1 and the inner cylinder 12, and the six separation plates 13 can be freely detached and adjusted according to actual conditions, so that the size of the treatment areas is adjusted, and the ratio of the electrostatic separation time to the flushing time is controlled, so that the maximum benefit is achieved.
The outer cylinder 1 is made of a stainless steel material, the outer cylinder 1 is a cathode and is in a hollow cylinder shape, the inner cylinder 12 is made of a copper material, the inner cylinder 12 is an anode, and the inner cylinder 12 can also be in a hollow cylinder shape; the inner cylinder 12 is connected with a high-voltage direct current power supply of 5-13KV, the outer cylinder 1 is grounded, and a high-voltage electrostatic field is formed between the outer cylinder 1 and the inner cylinder 12. The baffle 13, the screen plate 4, the top cover 9 and the bottom cover 5 are all made of electric insulation materials. In addition, for safety, an insulating sleeve can be arranged outside the outer cylinder 1, so that high-voltage electricity is isolated inside the insulating sleeve, and the safety performance of operators is further improved.
The invention relates to a continuous slurry electrostatic separation system, which comprises a continuous slurry electrostatic separation device F; the input end of the continuous slurry electrostatic separation device F is connected with a pretreatment slurry storage tank A through a buffer tank B, and the output end of the continuous slurry electrostatic separation device F is connected with a purified slurry storage tank C; the output end of the continuous slurry oil electrostatic separation device F is also connected with a flushing fluid sedimentation tank D through a buffer tank B, the top of the flushing fluid sedimentation tank D is connected with the continuous slurry oil electrostatic separation device F through the buffer tank B, and the bottom of the flushing fluid sedimentation tank D is connected with a high-solid-content flushing fluid storage tank E. The continuous slurry electrostatic separation system forms two closed loops, one loop is a purifying treatment loop, and the other loop is a flushing loop; the two loops are not mutually interfered, and the continuous purification treatment of the slurry oil is realized by stable operation; the washing is convenient, and the separation effect is high, can adjust according to different operating modes, and accommodation is wide, easily realizes automated control. The slurry oil with higher solid content can also be pretreated by a cyclone, then enter a pretreated slurry oil storage tank A, enter a continuous slurry oil electrostatic separation device F by a buffer tank B to carry out high-voltage electrostatic separation treatment, and finally the purified slurry oil is obtained. A sedimentation auxiliary agent can be added into the flushing fluid sedimentation tank D, and pure flushing fluid can be obtained after sedimentation and can be recycled; the ratio of the sedimentation auxiliary agent to the flushing liquid is 0.3:1, and the sedimentation auxiliary agent is preferably a mixed solvent of light oil and flushing oil.
The continuous slurry electrostatic separation method of the present invention, on the continuous slurry electrostatic separation device F described above, comprises the steps of: 1) The top cover 9 and the bottom cover 5 are rotated, a flushing fluid inlet 8 on the top cover 9 and a flushing fluid outlet 10 on the bottom cover 5 are positioned in the same treatment area, flushing fluid is injected into the treatment area through the flushing fluid inlet 8, filling materials in the treatment area are flushed, and the flushed flushing fluid is discharged through the flushing fluid outlet 10 on the bottom cover 5, so that flushing work of the treatment area is completed; 2) Continuing to rotate the top cover 9 and the bottom cover 5, flushing the flushing liquid in the next treatment area, wherein in the treatment area flushed in the step 1), a slurry inlet 7 on the top cover 9 is aligned to the treatment area, a slurry outlet 11 on the bottom cover 5 is not positioned in the treatment area, the treatment area is a high-voltage electrostatic treatment area, and slurry to be purified enters the treatment area from the slurry inlet 7 to be subjected to high-voltage electrostatic purification treatment; 3) Continuing to rotate the top cover 9 and the bottom cover 5, continuing to enter a next treatment area for flushing, aligning the slurry inlet 7 with the next high-voltage electrostatic treatment area, injecting slurry and carrying out high-voltage electrostatic purification treatment, aligning the slurry outlet 11 on the bottom cover 5 with the sieve holes of the sieve plate 4 on the high-voltage electrostatic treatment area in the step 2), and discharging the purified slurry from the slurry outlet 11; 4) Repeating the step 3) to realize continuous purification treatment of the slurry oil.
When the oil slurry is subjected to electrostatic separation treatment, the treatment area is filled with the filler, the filler is polarized under high pressure, a strong electric field gradient is formed near the filler contact point, and the oil slurry has strong adsorption force and can adsorb solid particles; the top cover 9 is rotated, flushing fluid is firstly injected into the treatment area from the flushing fluid inlet 8, the filling material is flushed, and the flushed flushing fluid is discharged from the flushing fluid outlet 10 from the bottom through corresponding sieve holes; continuing to rotate the top cover 9, flushing the next treatment area with flushing liquid, injecting slurry oil into the flushed treatment area through the slurry oil inlet 7, and separating solid particles in the slurry oil in the high-voltage electrostatic treatment area; after the electrostatic separation treatment is finished, the bottom cover 5 is rotated until the slurry outlet 11 on the bottom cover 5 coincides with the sieve mesh area on the sieve plate 4 of the treatment area, and the treated slurry can be discharged through the slurry outlet 11; finally, through rotating the bottom cover 5 and the top cover 9, the region is washed again by the washing liquid, one working cycle is completed, and the separation of slurry oil and solid particles is realized; the washing frequency is low, the separation efficiency is high, and the operation stability is good.
Compared with the prior art, the invention has the beneficial effects that: a plurality of independent treatment areas are formed between the outer cylinder 1 and the inner cylinder 12 through the partition plates 13, and each treatment area can independently finish the operations of flushing, high-voltage electrostatic treatment and oil slurry discharge after treatment under the rotation action of the top cover 9 and the bottom cover 5. Flushing liquid is injected from the flushing liquid inlet 8 to flush the filling material in the treatment area, and the flushed flushing liquid is discharged from the flushing liquid outlet 10; and then the top cover 9 is rotated, slurry oil is injected into the treatment area from the slurry oil inlet 7 for high-voltage electrostatic separation treatment, after the treatment is finished, the bottom cover 5 is rotated, the slurry oil outlet 11 on the bottom cover 5 is aligned with the sieve holes of the sieve plate 4 on the high-voltage electrostatic treatment area, and the purified slurry oil is discharged from the slurry oil outlet 11 and is circulated in sequence. The invention meets the requirement of continuous production, has the advantages of no interference between the flushing process and the purifying treatment process, convenient flushing, less flushing frequency, higher separation efficiency, good running stability, wide application range and easy realization of automatic control, and can be regulated according to different working conditions.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (8)
1. A continuous slurry oil electrostatic separation device is characterized in that: the cathode type solar energy collector comprises an outer cylinder, wherein the outer cylinder is a cathode, an inner cylinder which is coaxially arranged is arranged in the outer cylinder, the inner cylinder is an anode, a plurality of partition boards which are arranged along the vertical direction are arranged between the inner cylinder and the outer cylinder, the partition boards divide the space between the inner cylinder and the outer cylinder into a plurality of treatment areas, and filler is arranged in the treatment areas;
the top of the outer cylinder is provided with a top cover which is rotationally connected with the outer cylinder, and the top cover is provided with an oil slurry inlet and a flushing fluid inlet; a screen plate is arranged at the bottom of the outer cylinder and is fixedly connected with the outer cylinder; the bottom of the sieve plate is provided with a bottom cover which is rotationally connected with the sieve plate, and the bottom cover is provided with an oil slurry outlet which is matched with the oil slurry inlet and a flushing fluid outlet which is matched with the flushing fluid inlet;
the bottom cover is provided with a central hole matched with the inner cylinder, the sieve plate is provided with a through hole, the inside of the top cover is provided with a rotating hole matched with the inner cylinder, the inner cylinder extends up and down in the outer cylinder, the inner cylinder extends up to the inside of the top cover, the top cover is connected with the inner cylinder through the rotating hole, the inner cylinder extends downwards to the inside of the bottom cover through the through hole, and the bottom cover is connected with the inner cylinder through the central hole;
the bottom cover comprises a first cover body, a second cover body and a cover edge connected with the first cover body and the second cover body, wherein slurry oil sieve holes and flushing liquid sieve holes which are respectively matched with the slurry oil outlet are formed in the first cover body, the slurry oil outlet and the flushing liquid outlet are both fixed on the second cover body, the slurry oil outlet and the flushing liquid outlet are both arranged in a funnel shape, the slurry oil outlet and the flushing liquid outlet are directly fixed at the bottom of the first cover body in an upward extending mode, the slurry oil sieve holes and the flushing liquid sieve holes are respectively gathered, and the slurry oil outlet and the flushing liquid outlet are downwards extended and fixed on the second cover body and are convexly exposed to the outer side of the second cover body.
2. The continuous slurry electrostatic separation device of claim 1, wherein:
the outside of sieve is equipped with the fixing base, the outside of urceolus is equipped with the solid fixed ring, gu fixed ring with the fixing base passes through the fastener and connects.
3. The continuous slurry electrostatic separation device of claim 2, wherein:
the fixing seat and the sieve plate are provided with a first clamping groove matched with the outer cylinder, and the sieve plate is provided with a separation groove matched with the partition plate.
4. The continuous slurry electrostatic separation device of claim 1, wherein:
the bottom of the sieve plate is provided with a convex ring, and the bottom cover is provided with a groove matched with the convex ring.
5. The continuous slurry electrostatic separation device of claim 1, wherein:
the top cover is provided with a second clamping groove matched with the outer cylinder, the filler is spherical glass beads, and the diameter of each spherical glass bead is 0.8-4.0mm.
6. The continuous slurry electrostatic separation device of claim 1, wherein:
and the outer cylinder is provided with an overflow port.
7. A continuous slurry electrostatic separation system, characterized by: comprising a continuous slurry electrostatic separation device according to any one of claims 1-6;
the input end of the continuous slurry electrostatic separation device is connected with a pretreatment slurry storage tank through a buffer tank, and the output end of the continuous slurry electrostatic separation device is connected with a purified slurry storage tank;
the output end of the continuous slurry oil electrostatic separation device is also connected with a flushing fluid sedimentation tank through a buffer tank, the top of the flushing fluid sedimentation tank is connected with the continuous slurry oil electrostatic separation device through the buffer tank, and the bottom of the flushing fluid sedimentation tank is connected with a high-solid-content flushing fluid storage tank.
8. A continuous electrostatic oil slurry separation method is characterized in that: on a continuous slurry electrostatic separation device according to any one of claims 1-6, comprising the steps of:
1) The top cover and the bottom cover are rotated, a flushing fluid inlet on the top cover and a flushing fluid outlet on the bottom cover are positioned in the same treatment area, flushing fluid is injected into the treatment area through the flushing fluid inlet, filling materials in the treatment area are flushed, and the flushed flushing fluid is discharged through the flushing fluid outlet on the bottom cover, so that flushing work of the treatment area is completed;
2) Continuously rotating the top cover and the bottom cover, flushing the next treatment area with the flushing liquid, wherein in the treatment area flushed in the step 1), an oil slurry inlet on the top cover is aligned to the treatment area, and an oil slurry outlet on the bottom cover is not positioned in the treatment area, wherein the treatment area is a high-voltage electrostatic treatment area, and the oil slurry to be purified enters the treatment area from the oil slurry inlet to be subjected to high-voltage electrostatic purification treatment;
3) Continuously rotating the top cover and the bottom cover, continuously entering a next treatment area to perform flushing operation, injecting slurry oil into the next high-voltage electrostatic treatment area by using a slurry oil inlet, and performing high-voltage electrostatic purification treatment, wherein a slurry oil outlet on the bottom cover is aligned with a sieve hole of a sieve plate on the high-voltage electrostatic treatment area in the step 2), and discharging the purified slurry oil from the slurry oil outlet;
4) Repeating the step 3) to realize continuous purification treatment of the slurry oil.
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| CN110358576B (en) * | 2019-07-04 | 2021-03-26 | 中国石油大学(华东) | Catalytic cracking slurry oil purification system and purification method thereof |
| CN111349456B (en) * | 2020-04-13 | 2021-11-02 | 中国石油大学(华东) | Electrostatic separator capable of changing packing accumulation mode and cleaning method |
| CN112159681B (en) * | 2020-09-28 | 2022-03-08 | 中国石油大学(华东) | External circulation continuous type catalytic slurry oil cyclone filter |
| CN113667512B (en) * | 2021-09-06 | 2022-09-16 | 中国石油大学(华东) | Viscosity reduction and solid removal integrated device for catalytic cracking slurry oil |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5200077A (en) * | 1991-04-08 | 1993-04-06 | Memtec America Corporation | Backflushable rotary melt polymer filter apparatus |
| CN105854378A (en) * | 2015-01-23 | 2016-08-17 | 广西泓达生物能源科技有限公司 | Equipment for separating residual catalyst granules in catalytic cracking oil slurry |
| CN107118796A (en) * | 2017-06-20 | 2017-09-01 | 襄阳航生石化环保设备有限公司 | Slurry oil electrostatic separating method and slurry oil electrostatic separation equipment |
| CN209537397U (en) * | 2018-12-28 | 2019-10-25 | 中国石油大学(华东) | A kind of continous way slurry oil electrostatic separator and separation system |
-
2018
- 2018-12-28 CN CN201811623442.6A patent/CN109517621B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5200077A (en) * | 1991-04-08 | 1993-04-06 | Memtec America Corporation | Backflushable rotary melt polymer filter apparatus |
| CN105854378A (en) * | 2015-01-23 | 2016-08-17 | 广西泓达生物能源科技有限公司 | Equipment for separating residual catalyst granules in catalytic cracking oil slurry |
| CN107118796A (en) * | 2017-06-20 | 2017-09-01 | 襄阳航生石化环保设备有限公司 | Slurry oil electrostatic separating method and slurry oil electrostatic separation equipment |
| CN209537397U (en) * | 2018-12-28 | 2019-10-25 | 中国石油大学(华东) | A kind of continous way slurry oil electrostatic separator and separation system |
Non-Patent Citations (1)
| Title |
|---|
| 何志成主编.《化工原油（第二版）》.中国医药科技出版社,2009,(第2版),第98-99页. * |
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