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CN-122012140-A - Catalytic slurry oil filtering and extracting device

CN122012140ACN 122012140 ACN122012140 ACN 122012140ACN-122012140-A

Abstract

The invention discloses a catalytic slurry oil filtering and extracting device, which belongs to the technical field of catalytic slurry oil processing, and comprises a tank body, wherein a cleaning component is arranged on the inner side and the outer side of the tank body together, the cleaning component comprises a servo motor fixedly connected to the upper side of a top cover, the output end of the servo motor is fixedly connected with a screw rod penetrating through the top cover, the outer side of the screw rod is in threaded connection with a screw rod nut, the outer side of the screw rod nut is sleeved with a movable disc, and the outer side of the movable disc is fixedly connected with a first scraping ring.

Inventors

  • WANG MIN
  • YUAN YANG
  • ZHANG CUNJIN
  • Shan Mingxiu
  • YANG XIUJIE

Assignees

  • 山东天弘化学有限公司
  • 万达集团股份有限公司

Dates

Publication Date
20260512
Application Date
20260413

Claims (8)

  1. 1. The catalytic slurry oil filtering and extracting device comprises a tank body (1) and a filtering cavity (11) formed in the upper side of the inside of the tank body (1), wherein a top cover (16) is arranged on the upper side of the tank body (1), and a second feeding pipe (17) is fixedly connected to the right side of the upper end of the top cover (16), and the catalytic slurry oil filtering and extracting device is characterized in that a cleaning component (2) is arranged on the inner side and the outer side of the tank body (1) together; The cleaning component (2) comprises a servo motor (21) fixedly connected to the upper side of the top cover (16), an output end of the servo motor (21) penetrates through the top cover (16) and is fixedly connected with a screw rod (22), a screw rod nut (23) is connected to the outer side of the screw rod (22) in a threaded mode, a movable disc (24) is sleeved on the outer side of the screw rod nut (23), a first scraping ring (25) is fixedly connected to the outer side of the movable disc (24), connecting blocks (26) are fixedly connected to the left side and the right side of the inner surface of the movable disc (24), second scraping rings (27) are fixedly connected to the opposite surfaces of the connecting blocks (26) on the left side and the right side, a ceramic filter element (28) is inserted into the lower side of the interior of the filter cavity (11), the second scraping rings (27) are sleeved on the outer side of the ceramic filter element (28) in a sliding mode, and a conveying pipe (29) is fixedly connected to the bottom end of the ceramic filter element (28). The inside of the filter cavity (11) is provided with a disturbance component (5), and the disturbance component (5) comprises through holes (51) which are arranged in an annular array and are penetrated and arranged on the upper side of the movable disc (24); The upper side and the lower side of the movable disc (24) are respectively and fixedly connected with guide barrels (52) in annular array arrangement, one side, far away from the movable disc (24), of the guide barrels (52) is fixedly connected with movable strips (53) in annular array arrangement, a plurality of the movable strips (53) are arranged in a horn mouth shape, a plurality of the guide barrels (52) are respectively communicated with a plurality of through holes (51), and the guide barrels (52) are arranged in a staggered mode.
  2. 2. The catalytic slurry oil filtering and extracting device according to claim 1, wherein the extracting cavity (12) is formed in the lower side of the inside of the tank body (1), two heating pieces (13) are arranged in the side wall of the tank body (1), a first feeding pipe (14) is fixedly connected to the right side of the outer surface of the tank body (1), and a discharging pipe (15) is fixedly connected to the lower side of the tank body (1).
  3. 3. A catalytic slurry filter extraction device according to claim 2, wherein the outer surface of the first scraper ring (25) is in sliding contact with the inner side wall of the filter chamber (11), the delivery pipe (29) extends from the filter chamber (11) to the interior of the extraction chamber (12), the ceramic filter element (28) is communicated with the extraction chamber (12) through the delivery pipe (29), and the inner side wall of the second scraper ring (27) is in sliding contact with the outer surface of the ceramic filter element (28).
  4. 4. The catalytic slurry filtering and extracting device according to claim 2, wherein the right side of the lower end inside the filter cavity (11) is fixedly connected with a guide post (3), the movable disc (24) is slidably sleeved on the outer side of the guide post (3), the inside of the conveying pipe (29) is provided with a one-way valve (4), the second feeding pipe (17) penetrates through the top cover (16), and the heating piece (13) is used for heating the catalytic slurry inside the filter cavity (11) and the extraction cavity (12) respectively.
  5. 5. The catalytic slurry filtering and extracting device according to claim 1, wherein a filtering component (54) is arranged on the outer side of the movable disc (24), and the filtering component (54) comprises fixed rings (541) fixedly connected to the upper side and the lower side of the movable disc (24).
  6. 6. The catalytic slurry filtering and extracting device according to claim 5, wherein the inner parts of the fixing rings (541) are fixedly connected with filter screens (542), the filter screens (542) are sleeved on the outer sides of the ceramic filter cores (28), and the inner cavity shape of the fixing rings (541) is matched with the shape of the filter screens (542).
  7. 7. The catalytic slurry filter extraction device of claim 6, wherein the inner side and the outer side of the movable tray (24) are provided with an aggregate assembly (55), and the aggregate assembly (55) comprises two limiting rings (551) fixedly connected with opposite surfaces of the filter screens (542) at the upper side and the lower side.
  8. 8. The catalytic slurry filter extraction device of claim 7, wherein a first guide ring (552) is fixedly connected to the outer side of the limiting ring (551) at the upper side, a second guide ring (553) is fixedly connected to the lower side of the inner side wall of the fixed ring (541), a gap is formed between the limiting ring (551) and the ceramic filter element (28), and a gap is formed between the second guide ring (553) and the limiting ring (551) at the lower side.

Description

Catalytic slurry oil filtering and extracting device Technical Field The invention relates to the technical field of catalytic slurry oil processing, in particular to a catalytic slurry oil filtering and extracting device. Background The slurry oil is a heavy component residue fuel produced by a catalytic cracking device of an oil refinery, belongs to the category of industrial fuel oil, and is mainly divided into marine internal combustion engine fuel oil and furnace fuel oil, wherein the raw materials are derived from a bottom product of a catalytic cracking process, the physical characteristics of the slurry oil are high viscosity and high density, the slurry oil contains impurities such as catalyst powder and the like, the marine fuel oil is prepared by mixing straight-run heavy oil and diesel oil, the slurry oil is suitable for a large low-speed marine diesel engine with the rotating speed lower than 150 revolutions per minute, indexes such as viscosity, flash point and the like are required to be controlled, and the preheating temperature is required to be lower than the flash point by 20 ℃ so as to ensure the atomization combustion effect. The fuel oil for the furnace is prepared by vacuum residue, cracked residue and the like, is preheated and filtered at 70-120 ℃ and then is atomized and combusted in an industrial boiler, catalyst particles in ash can influence the service life of equipment, and the two types of fuel oil are required to conform to quality specifications such as viscosity, sulfur content, condensation point and the like, so that the fuel oil is widely applied to the fields of ship power, electric power, petrochemical industry and the like. Catalytic slurry filtration is divided into two stages, prefilter and fine filter. In fine filtration, the porous metal powder sintered filter element is the core component, when hot slurry oil passes through the filter element, liquid slurry oil can pass through the filter element, solid catalyst particles are trapped on the surface of the filter element, and the catalyst particles are flushed into a filter cake receiving device through a dry gas back flushing means. When the waste residue is discharged, the pressure is quickly released, the filtered liquid flows reversely, the medium in the filtering equipment flows out through the slag discharging valve, and the solvent extraction is separated according to the solubility difference of the solute in the solvent. The polar solvent can be dissolved in the polar solvent, the nonpolar solute can be dissolved in the nonpolar solvent, and in the catalytic slurry oil treatment, the components such as saturated hydrocarbon, aromatic hydrocarbon, colloid and asphaltene in the slurry oil can be effectively separated by selecting a proper solvent; In the prior art, because the catalytic slurry oil is a byproduct of a catalytic cracking device, contains a large amount of catalyst powder, coke particles, unreacted hydrocarbon, a small amount of moisture and impurities, has wide particle size distribution of the solid particles, and varies from micron level to millimeter level, if the solid particles directly enter a filtering extraction device, large particle impurities can rapidly block a filter element or a packing layer of the extraction tower, so that the pressure drop of equipment is rapidly increased, the processing capacity is reduced, and even equipment faults are caused. Disclosure of Invention Aiming at the problems existing in the prior art, the invention aims to provide a catalytic slurry oil filtering and extracting device. In order to solve the problems, the invention adopts the following technical scheme that impurities attached to the surface of the ceramic filter element and the inner side wall of the filter cavity can be cleaned through the first scraping ring and the second scraping ring in the process of moving the movable disc up and down, so that the inner side wall of the filter cavity and the surface of the ceramic filter element can be cleaned automatically, and the blockage of the impurities is avoided. The catalytic slurry oil filtering and extracting device comprises a tank body and a filtering cavity formed in the upper side of the inside of the tank body, wherein a top cover is arranged on the upper side of the tank body, a second feeding pipe is fixedly connected to the right side of the upper end of the top cover, and cleaning components are arranged on the inner side and the outer side of the tank body together; the cleaning component comprises a servo motor fixedly connected to the upper side of the top cover, the output end of the servo motor penetrates through the top cover and is fixedly connected with a screw rod, a screw rod nut is connected to the outer side of the screw rod in a threaded mode, a movable disc is sleeved on the outer side of the screw rod nut, a first scraping ring is fixedly connected to the outer side of the movable disc, connecting blocks are fixedly