CN112280591B - Reinforced spiral catalytic cracking slurry oil filter - Google Patents
Reinforced spiral catalytic cracking slurry oil filter Download PDFInfo
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- CN112280591B CN112280591B CN202011112572.0A CN202011112572A CN112280591B CN 112280591 B CN112280591 B CN 112280591B CN 202011112572 A CN202011112572 A CN 202011112572A CN 112280591 B CN112280591 B CN 112280591B
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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
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- Oil, Petroleum & Natural Gas (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention aims to provide a reinforced spiral catalytic cracking slurry oil filter which comprises a filter shell, spiral stirrers, spiral filter elements, an ultrasonic vibration box and a heating device, wherein the two spiral stirrers and the filter shell are in clearance fit and are centrally and symmetrically arranged at the upper end and the lower end of the filter, a three-phase motor provides power outside the filter shell, and a spiral stirring rod plays a role in stirring, conveying and stabilizing flow in a liquid flow channel in the filter shell so as to stir and convey feeding materials and medicaments. Four spiral filter elements are arranged in two rows and two columns in the middle of the two liquid flow channels. The three ultrasonic vibration boxes are respectively hung on the left, middle and right of the four spiral filter elements, and the heating device is positioned at the bottom of the filter. It has that the feed liquor is stable, and centrifugal force reinforces the filtration, and the medicine promotes to filter and difficult jam, and the cleaning performance is good, has solved among the prior art that traditional catalysis slurry oil filter's filter efficiency is poor and filter fineness is low, easily blocks up and the poor problem of regeneration performance.
Description
Technical Field
The invention belongs to the field of catalytic cracking slurry oil filtering equipment, and particularly relates to a reinforced spiral catalytic cracking slurry oil filter.
Technical Field
In the processing of petroleum, fluid catalytic cracking is one of the most important processes. However, during the FCC process of petroleum, a large amount of by-product slurry oil is produced, which has a serious influence. For the oil slurry thrown out from the device, the utilization rate of the oil slurry is extremely low. Therefore, in order to improve the comprehensive utilization efficiency and economic benefit of FCC slurry oil, many oil refiners begin to purify FCC slurry oil, and then further develop and comprehensively utilize the FCC slurry oil.
A large amount of components in the catalytic slurry oil are raw materials for producing carbon black, needle coke and various chemical products, but the catalytic slurry oil also contains catalyst solid particles, so that a plurality of components cannot be directly utilized, and the prior filtering technology has the following problems: firstly, the filtering efficiency is low, and the content of catalyst powder in the filtered oil slurry cannot meet the requirement; secondly, the filtering period is short, the filter is easy to block in operation, and frequent cleaning is needed; fourthly, the filter element has poor protection and regeneration performance, and the filter element needs to be replaced frequently; therefore, a filter with high efficiency, difficult blockage and good regeneration effect is needed.
Disclosure of Invention
In view of the above-mentioned deficiencies of the prior art, the present invention provides a reinforced spiral catalytic cracking slurry oil filter, which has the advantages of stable liquid inlet, centrifugal force reinforced filtration, separation promotion by chemicals, difficult blockage, good cleaning effect, etc., and solves the problems of poor filtration efficiency, low filtration precision, easy blockage and poor regeneration performance of the traditional catalytic cracking slurry oil filter in the prior art.
The scheme adopted by the invention is as follows: a reinforced spiral catalytic cracking slurry oil filter is characterized in that: including filter housing, the helical agitator, the spiral filter core, the ultrasonic wave box that shakes, the filter housing lower extreme is equipped with the medicament entry, filter housing upper portion sets up upper portion liquid flow channel, the lower part sets up lower part liquid flow channel, the helical agitator divide into two sets ofly, all with use the bearing to be connected between the filter housing, install in filter upper and lower part liquid flow channel department, three phase machine is located filter housing and provides power outward, the effect that the motor was carried the stationary flow to the liquid flow channel play stirring in filter housing is connected to the spiral puddler, make feeding and medicament stirring carry. The four spiral filter elements are arranged in two rows and two columns in the middle of the two liquid flow passages to be connected with the two flow passages, the filter elements are in a double-passage mode, the inner passage is communicated with the lower liquid flow passage, the outer passage is communicated with the upper liquid flow passage to be matched with each other to realize continuous filtration, and the filter elements and the ultrasonic vibration box suspension plate are connected to the shell of the filter. The ultrasonic vibration boxes are evenly distributed and hung on the peripheral sides of the four spiral filter elements in a threaded connection mode, and the heating device is positioned at the bottom of a lower flow passage of the filter.
The filter provided by the invention realizes the filtration and separation of catalyst particles in catalytic slurry oil under the condition of centrifugal force enhanced filtration. The ultrasonic vibration box is added in the filtering and regenerating process, so that the viscosity can be reduced in the filtering process, the problem of poor fluidity of the reverse slurry and low filtering efficiency is solved, and the regeneration performance of the filter material is enhanced by ultrasonic auxiliary cleaning in the washing process. The use of the agent also enhances the filtration and regeneration processes, respectively.
The filter shell is a square shell, the lower end of the filter shell is provided with a medicament inlet, and a fat-soluble flocculating agent is added into the fed oil slurry. The oil slurry inlet is also a backwashing water outlet, and the oil slurry outlet is also a backwashing water inlet.
The spiral stirrer comprises a three-phase motor, a bearing and a spiral stirring rod, and is connected to the bearing opening of the filter shell. The three-phase motor can change the motor steering by randomly adjusting the phase sequence of the two phases. The bearing is a deep groove ball bearing. The spiral stirring rod is connected with the three-phase motor through a coupler. The guide vanes of the spiral stirring rod are welded and installed at 45 degrees.
The spiral filter element is of a double-channel type, the spiral filter element and the ultrasonic vibration box suspension plate are connected in a welding mode, the ultrasonic vibration box suspension plate is welded with the filter shell, the inner wall of the spiral filter element between the inner channel and the outer channel is made of porous medium materials and plays a role in filtering, the outer wall of the spiral filter element is made of cylindrical steel plate materials and can penetrate through ultrasonic waves, the inner channel is connected with the lower liquid flow channel, and the outer channel is connected with the upper liquid flow channel.
The ultrasonic vibration box comprises an ultrasonic vibrator and a vibration box, the vibrator is fixed on one surface of the vibration box through glue and a bolt, and the vibration box is respectively suspended on the peripheral sides of the four spiral filter elements in a threaded connection mode.
The ultrasonic vibrator consists of a shell, a matching layer, a piezoelectric ceramic disc, a Cymbal array receiver, a metal ring, a rubber gasket and the like. The ultrasonic vibrator realizes the conversion of electric energy and mechanical energy through the piezoelectric effect of piezoelectric ceramics, and the structure of the ultrasonic vibrator is generally cylindrical and horn-shaped. The oscillators have different frequencies and powers, and have slightly different sizes. The frequencies of the prior commonly used vibrators are 25KHz, 28KHz and 40KHz, and the rated powers are 50W, 60W, 100W and the like. The ultrasonic vibrator with the frequency of 28KHz and the rated power of 100W is selected.
The heating device comprises a heating plate and a heating power supply, and the temperature can be adjusted to be up to 200 ℃. The heating plate is a ceramic heating plate fixed at the bottom of the liquid flow passage at the lower part of the filter. The heating power supply is connected with the heating plate through a lead and is positioned outside the filter. The length of the heating plate is slightly less than that of the bottom surface of the filter.
Compared with the prior art, the equipment has the beneficial effects that:
(1) the spiral filter element adopted by the invention is a spiral filter element, the inner wall of the spiral filter element is spiral, so that the oil slurry entering the inner wall of the spiral filter element flows in a rotating manner, the centrifugal force is used for enhancing the filtering effect, the separation efficiency is improved, and meanwhile, the spiral filter element with the same height has a larger inner wall area due to the spiral shape, so that the spiral filter element has a larger filtering area, the filtering is more sufficient, and the filtering efficiency is improved.
(2) According to the invention, a dosing process is introduced, a flocculating agent is added to enable catalyst particles to be flocculated preferentially under the heating and stirring effects, and the medicament modification and the improvement of the filter element structure are adopted to cooperate with each other, so that the filtering precision and efficiency are improved, and particles with smaller particle sizes are filtered by the filter screen.
(3) The invention uses the ultrasonic vibration box, can reduce the viscosity of the oil slurry in the filtering stage, strengthen the cleaning effect in the regeneration stage, and solve the problems of easy blockage of a porous medium, difficult washing in the regeneration process and poor regeneration effect in the filtering process.
(4) The invention adopts a spiral stirring system, can control the feeding speed, homogenizes the incoming flow, has more stable filtration and higher efficiency, and simultaneously fully mixes the stirring medicament and the slurry oil to grow the flocculation effect.
Drawings
FIG. 1 is a schematic diagram of a reinforced spiral catalytic cracking slurry filter;
in the figure: 1. the ultrasonic vibration ultrasonic filter comprises an oil slurry outlet 2, a filter shell 3, an ultrasonic vibration box suspension plate 4, an ultrasonic vibration box 5, an ultrasonic vibrator 6, a three-phase motor 7, a spiral stirring rod 8, a bearing 9, a heating plate 10, a heating power supply 11, a medicament inlet 12, an oil slurry inlet 13, a spiral filter element inner wall 14 and a spiral filter element outer wall.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the disclosure herein.
Referring to the drawings, the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the present disclosure, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present disclosure can be implemented, so that the present disclosure has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the disclosure of the present disclosure without affecting the efficacy and the achievable purpose of the present disclosure. Meanwhile, the positional limitation terms used in the present specification are for clarity of description only, and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship therebetween may be regarded as the scope of the present invention without substantial changes in the technical content.
FIG. 1 shows that an ultrasonic vibration box suspension plate 3 and a bottom shield are horizontally arranged in a filter housing 2, an upper liquid flow channel is formed between the ultrasonic vibration box suspension plate 3 and the top of the filter housing 2, a lower liquid flow channel is formed between the bottom shield and the bottom of the filter housing 2, an ultrasonic vibration box 4 and a spiral filter element are arranged between the ultrasonic vibration box suspension plate 3 and the bottom shield, a medicament inlet 11 and an oil slurry inlet 12 are arranged at the lower end of the filter housing 2, and an oil slurry outlet 1 is also arranged at the upper end of the filter housing 2; the spiral agitator includes two sets ofly, installs respectively in upper portion liquid flow path and lower part liquid flow path, and every spiral agitator all includes three phase motor 6, spiral puddler 7, use bearing 8 to be connected between spiral puddler 7 and the filter housing 2, install in filter upper and lower part liquid flow path department, three phase motor 6 is located filter housing 2 and provides power outward, and three phase motor 6 output shaft hookup spiral puddler 7, the upper and lower liquid flow path that spiral puddler 7 stretched into in the filter housing 2 plays the effect of stirring transport stationary flow, makes feeding and medicament stirring transport. The spiral filter elements comprise four spiral filter elements which are arranged in two rows and two columns in the middle between the ultrasonic vibration box suspension plate 3 and the bottom shielding plate and are connected with upper and lower liquid flow passages, each spiral filter element consists of a cylindrical spiral filter element outer wall 14 and a spiral filter element inner wall 13, so that the spiral filter elements are in a double-channel mode, the spiral channel inside each spiral filter element inner wall 13 is communicated with the lower liquid flow passage, the outer channel between each spiral filter element outer wall 14 and each spiral filter element inner wall 13 is communicated with the upper liquid flow passage, continuous filtration is realized by mutual matching, the spiral filter element outer walls 14 are made of steel plates and can permeate ultrasonic waves, the spiral filter element inner walls 13 are made of porous medium materials, particle filtration is realized, and the spiral filter elements are relatively and fixedly connected with the filter shell 2 through the ultrasonic vibration box suspension plate 3; the ultrasonic wave box 4 that shakes includes a plurality ofly, and the upper end all shakes box suspension plate 3 threaded connection with the ultrasonic wave and is in the same place, and a plurality of ultrasonic waves shake box 4 evenly distributed and hang in the week side of four spiral filter cores, and every ultrasonic wave shakes a plurality of ultrasonic vibrator 5 of equipartition in the box 4.
The bottom of the filter shell 2 is also provided with a heating plate 9 for heating fluid in a lower liquid inlet channel, and the heating plate 9 is externally connected with a heating power supply 10.
The filter shell 2 is a square shell, a medicament inlet 11 is formed in the lower end of the square shell, and a fat-soluble flocculating agent is added through the medicament inlet 11.
The oil slurry inlet 12 is also a backwashing water outlet, and the oil slurry outlet 1 is also a backwashing water inlet.
The spiral stirrer comprises a three-phase motor 6, a bearing 8 and a spiral stirring rod 7, and is connected to a bearing opening of the filter shell. The three-phase motor 6 can change the motor steering by randomly adjusting the phase sequence of two phases. The bearing 8 is a deep groove ball bearing. The spiral stirring rod 7 is connected with the three-phase motor 6 through a coupler. The guide vanes of the spiral stirring rod 7 are welded and installed at 45 degrees.
The ultrasonic vibration box comprises an ultrasonic vibrator 5 and an ultrasonic vibration box 4, wherein the ultrasonic vibrator 5 is fixed on one surface of the ultrasonic vibration box 4 through glue and a bolt.
The ultrasonic vibrator consists of a shell, a matching layer, a piezoelectric ceramic disc, a Cymbal array receiver, a metal ring, a rubber gasket and the like. The ultrasonic vibrator 5 converts electric energy and mechanical energy by the piezoelectric effect of piezoelectric ceramics, and has a generally cylindrical and horn-shaped structure. The oscillators have different frequencies and powers, and have slightly different sizes. The frequencies of the prior commonly used vibrators are 25KHz, 28KHz and 40KHz, and the rated powers are 50W, 60W, 100W and the like. The ultrasonic vibrator with the frequency of 28KHz and the rated power of 100W is selected.
The heating device comprises a heating plate 9 and a heating power supply 10, and the temperature can be adjusted to be up to 200 ℃. The heating plate 9 is a ceramic heating plate fixed at the bottom of the lower flow channel of the filter. The heating power supply 10 is connected with the heating plate 9 through a lead and is positioned outside the filter. The length of the heating plate 9 is slightly less than that of the bottom surface of the filter.
The working process is as follows:
catalytic cracking slurry oil enters from a slurry oil inlet 12, meanwhile, a fat-soluble flocculating agent is added into a medicament inlet 11, and the slurry oil and the medicament are stirred and transported by a spiral stirring rod 7 driven by a three-phase motor 6. The heating power supply 10 is turned on to heat the heating plate 9 to heat the oil slurry and the medicament to fully mix the oil slurry and the medicament, the oil slurry after mixing and flocculation enters a spiral channel inside a spiral filter element inner wall 13 of the spiral filter element under the conveying of the spiral stirring rod 7, the oil slurry flows upwards in a rotating mode, the viscosity of the oil slurry is reduced under the action of the ultrasonic vibration box, the cleaned oil slurry after being filtered by the spiral filter element inner wall 13 enters an outer channel between a spiral filter element outer wall 14 and the spiral filter element inner wall 13 to flow into an upper liquid flow channel, and then the cleaned oil slurry is conveyed out of the filter through the oil slurry outlet 1 under the conveying action of the spiral stirrer. After filter filtering quality reduces, 6 double-phase sequences of adjustment three phase motor change the motor and turn to and make spiral agitator antiport produce the reverse transportation effect, slurry outlet 1 lets in the backwash water, get into spiral filter core outer passageway under the effect of spiral puddler 7, under the ultrasonic wave box intensification cleaning action of shaking, wash spiral filter core inner wall 13, carry the inside spiral passageway of foreign particle entering spiral filter core, then flow into filter lower part liquid runner, carry out the filter through slurry inlet 12 under the spiral agitator transportation effect, wash a period, alright filtering.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A reinforced spiral catalytic cracking slurry oil filter comprises a filter shell (2), a spiral stirrer, a spiral filter element and an ultrasonic vibration box (4), wherein an ultrasonic vibration box suspension plate (3) and a bottom shield plate are horizontally arranged in the filter shell (2), an upper liquid flow channel is formed between the ultrasonic vibration box suspension plate (3) and the top of the filter shell (2), a lower liquid flow channel is formed between the bottom shield plate and the bottom of the filter shell (2), the ultrasonic vibration box (4) and the spiral filter element are arranged between the ultrasonic vibration box suspension plate (3) and the bottom shield plate, a medicament inlet (11) and a slurry oil inlet (12) are formed in the lower end of the filter shell (2), and a slurry oil outlet (1) is formed in the upper end of the filter shell (2); the spiral stirrers comprise two groups which are respectively arranged in the upper liquid flow passage and the lower liquid flow passage; the spiral filter element comprises four spiral filter elements, two rows of two columns of the spiral filter elements are arranged in the middle between the ultrasonic vibration box suspension plate (3) and the bottom shielding plate and are connected with an upper liquid flow passage and a lower liquid flow passage, each spiral filter element comprises a cylindrical spiral filter element outer wall (14) and a spiral filter element inner wall (13), a spiral channel inside the spiral filter element inner wall (13) is communicated with the lower liquid flow passage, an outer channel between the spiral filter element outer wall (14) and the spiral filter element inner wall (13) is communicated with an upper liquid flow passage, the spiral filter element outer wall (14) is made of a steel plate material, the spiral filter element inner wall (13) is made of a porous medium material, the ultrasonic vibration box (4) comprises a plurality of ultrasonic vibration box suspension plates, the upper ends of the ultrasonic vibration box suspension plates are in threaded connection with the ultrasonic vibration box suspension plate, and a plurality of ultrasonic vibration boxes (4) are uniformly distributed and suspended on the peripheral sides of the four spiral filter elements, a plurality of ultrasonic vibrators (5) are uniformly distributed in each ultrasonic vibration box (4).
2. The filter of claim 1, further characterized in that the helical agitator comprises a three-phase motor (6) and a helical agitator rod (7), the helical agitator rod (7) is connected with the filter housing (2) by a bearing (8), the helical agitator comprises two helical agitator rods which are respectively installed on an upper liquid flow passage and a lower liquid flow passage of the filter, the three-phase motor (6) is positioned outside the filter housing (2) for providing power, an output shaft of the three-phase motor (6) is connected with the helical agitator rod (7), and the helical agitator rod (7) extends into the upper liquid flow passage and the lower liquid flow passage in the filter housing (2).
3. A filter according to claim 2, further characterized in that the agent inlet (11) is fed with a fat-soluble flocculating agent.
4. A filter according to any one of claims 1-3, further characterized in that the slurry inlet is a backwash water outlet and the slurry outlet is a backwash water inlet during a flushing operation.
5. The filter of claim 2, further characterized in that the vanes of the helical agitator bars are 45 degree welded fittings.
6. A filter according to claim 1, further characterized in that the spiral filter element is fixedly connected relative to the filter housing (2) by means of an ultrasonic horn suspension plate (3).
7. A filter according to any one of claims 1-3 and 5, characterized in that a heating plate (9) is arranged at the bottom of the filter shell (2) for heating the fluid in the lower liquid inlet channel, and the heating plate (9) is externally connected with a heating power supply (10).
8. A filter according to claim 7, characterised in that the heating plate (9) is a ceramic heating plate fixed to the bottom of the lower liquid flow channel in the filter housing (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011112572.0A CN112280591B (en) | 2020-10-16 | 2020-10-16 | Reinforced spiral catalytic cracking slurry oil filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011112572.0A CN112280591B (en) | 2020-10-16 | 2020-10-16 | Reinforced spiral catalytic cracking slurry oil filter |
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| Publication Number | Publication Date |
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| CN112280591A CN112280591A (en) | 2021-01-29 |
| CN112280591B true CN112280591B (en) | 2022-06-17 |
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| CN202011112572.0A Active CN112280591B (en) | 2020-10-16 | 2020-10-16 | Reinforced spiral catalytic cracking slurry oil filter |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2716122B1 (en) * | 1994-02-15 | 1996-06-07 | Georges Genot | Method for unclogging a filter element using in particular ultrasound. |
| CA2943442C (en) * | 2007-12-20 | 2020-09-15 | Chevron U.S.A. Inc. | Heavy oil upgrade process including recovery of spent catalyst |
| CN105664558A (en) * | 2016-01-21 | 2016-06-15 | 汉石环境工程（天津）有限公司 | Spiral plate-type micro-filter |
| CN105854616A (en) * | 2016-06-15 | 2016-08-17 | 江苏德林环保技术有限公司 | Spiral internal thread filter |
| CN109722286A (en) * | 2019-02-01 | 2019-05-07 | 扬州石化有限责任公司 | A kind of application of rotary filter press technology on MCP device |
| CN209662744U (en) * | 2019-03-11 | 2019-11-22 | 杭州桂冠环保科技有限公司 | A kind of bilateral complementation backwash filter |
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