CN113801688B

CN113801688B - Decompression tower for removing solid content in catalytic slurry oil

Info

Publication number: CN113801688B
Application number: CN202111200768.XA
Authority: CN
Inventors: 牛永峰; 唐克; 张东伟; 徐宝田; 程亮; 王勇
Original assignee: Liaoning Baolai Bio Energy Co Ltd
Current assignee: Liaoning Baolai Bio Energy Co Ltd
Priority date: 2021-10-15
Filing date: 2021-10-15
Publication date: 2022-06-24
Anticipated expiration: 2041-10-15
Also published as: CN113801688A

Abstract

The invention relates to the technical field of biomass energy industry, in particular to a pressure reducing tower for removing solid content in catalytic slurry oil, which comprises a pressure reducing tower body, wherein the top end of the pressure reducing tower body is fixedly connected with a tower top, a boiling kettle is arranged below the inner wall of the pressure reducing tower body, the bottom end of the boiling kettle is fixedly connected with a tower bottom outlet, the inner section of the pressure reducing tower body is provided with a distillation cavity, the inner wall of the tower bottom outlet is provided with a separation component for removing the solid content, the inner wall of the pressure reducing tower body is provided with an auxiliary gas supply component for accelerating steam delivery, and the inner wall of the boiling kettle is provided with a protection component for preventing the boiling kettle from being burnt; according to the invention, the first motor is started to drive the first rotating shaft to rotate, so that the stirring blade and the mounting cylinder are driven to rotate, the catalytic slurry oil is stirred at a high speed by the stirring blade in the separation cavity, solid content substances in the catalytic slurry oil are separated out, solid content in the catalytic slurry oil can be effectively separated and removed, the solid content of the catalytic slurry oil is reduced, and the influence on the quality of catalytic slurry oil products due to overhigh solid content is avoided.

Description

Decompression tower for removing solid content in catalytic slurry oil

Technical Field

The invention relates to the technical field of biomass energy industry, in particular to a decompression tower for removing solid content in catalytic slurry oil.

Background

Heavy oil components remaining from atmospheric distillation have a high molecular weight and a high boiling point, and are easily decomposed at a high temperature, so that the distilled products are deteriorated and coke is produced, which destroys normal production, and therefore, in order to extract more light components, the boiling point range of the raw oil to be distilled is lowered by lowering the distillation pressure, and this distillation process performed under reduced pressure is called reduced-pressure distillation, and the core equipment of the reduced-pressure distillation is a reduced-pressure tower and its vacuum pumping system.

When the vacuum tower is used at present, the solid content in catalytic slurry oil is not ideal, the solid content of the produced product is more, the working pressure of the vacuum tower can be increased if solid content is reduced and tower plates are increased, the working efficiency of the vacuum tower is influenced, the liquid at the bottom of the tower cannot be discharged as soon as possible when the vacuum tower is used, the burnt material adheres to the inner wall of the bottom of the tower and is difficult to clean, and the subsequent use of the vacuum tower is influenced.

Disclosure of Invention

The invention aims to provide a decompression tower for removing solid content in catalytic slurry oil, which comprises a decompression tower body, wherein the top end of the decompression tower body is fixedly connected with a tower top, a boiling kettle is arranged below the inner wall of the decompression tower body, the bottom end of the boiling kettle is fixedly connected with a tower bottom outlet, the inner section of the decompression tower body is provided with a distillation cavity, the inner wall of the tower bottom outlet is provided with a separation component for removing the solid content, the inner wall of the decompression tower body is provided with an auxiliary gas supply component for accelerating the delivery of steam, and the inner wall of the boiling kettle is provided with a protection component for preventing the boiling kettle from being burnt;

the separating component comprises an installation frame, a first motor, a first rotating shaft and a stirring blade, wherein the installation frame is fixedly connected with the inner wall of the tower bottom outlet, the first motor is fixedly connected with the inner wall of the installation frame, the first rotating shaft is installed on the top end of the first motor, the stirring blade is fixedly connected with the outer wall of the first rotating shaft, the filter screen is collected by fixedly connected with the top end of the installation frame, and a separation cavity is fixedly connected with the top end of the filter screen.

Optionally, the bottom end of the inner wall of the separation cavity is rotatably connected with a plurality of second rotating shafts, the stirring blades are installed on the outer walls of the second rotating shafts, the main gear is fixedly connected to the outer wall of the first rotating shaft, the pinion is fixedly connected to the outer wall of the second rotating shaft, and the pinion is meshed with the main gear.

Optionally, the bottom end of the separation chamber is fixedly connected with a plurality of absorption tubes, the bottom end of each absorption tube is fixedly connected with a supporting spring, the other end of each supporting spring is fixedly connected with an inverse flow plate, an installation cylinder is fixedly connected to the lower portion of the outer wall of the first rotating shaft, an annular groove is formed in the outer wall of the installation cylinder, and a plurality of vortex fan blades are installed on the wall of the annular groove.

Optionally, supplementary subassembly of supplying gas includes second motor and first gear and ventilation fan leaf, the three mounting bracket of the even fixedly connected with of internal wall of decompression tower, ventilation fan leaf rotate connect in the mounting bracket inner wall, square groove has been seted up to the mounting bracket inner wall, second motor fixed connection in square groove cell wall, first gear install in second motor top, ventilation fan leaf inner wall fixedly connected with annular rack, first gear with the annular rack meshes mutually.

Optionally, one end of the mounting frame is fixedly connected with a filter screen, the top end of the mounting frame is fixedly connected with a plurality of supporting columns, and the top ends of the supporting columns are fixedly connected with a guide plate.

Optionally, the inner wall of the vacuum tower body is fixedly connected with three tower plates, each tower plate is respectively located above the mounting frame, a through hole is formed in the center of the bottom end of each tower plate, the top end of each tower plate is fixedly connected with a mounting column, the top end of each mounting column is fixedly connected with an arc-shaped baffle, the outer wall of the vacuum tower body is fixedly connected with a first-line-reduced oil distillation outlet, a second-line-reduced oil distillation outlet and a third-line-reduced oil distillation outlet in sequence, and the first-line-reduced oil distillation outlet, the second-line-reduced oil distillation outlet and the third-line-reduced oil distillation outlet are respectively connected with the bottom ends of the tower plates.

Optionally, the boiling kettle inner wall is provided with the zone of heating, protection component includes the gas-supply pipe, and is a plurality of the gas-supply pipe set up in the zone of heating inner wall, one of them the gas-supply pipe runs through decompression tower outer wall, just here gas-supply pipe one end fixedly connected with air pump.

Optionally, a plurality of gas conveying cylinders are evenly arranged on the outer wall of the gas conveying pipe, a supporting plate is fixedly connected to the inner wall of each gas conveying cylinder, a sliding groove is formed in the inner wall of each gas conveying cylinder, a sliding baffle is slidably connected to the wall of the sliding groove, a connecting spring is fixedly connected to the bottom end of the sliding baffle, and the other end of the connecting spring is fixedly connected to the top end of the supporting plate.

Optionally, the filter frame is fixedly connected to the upper portion of the inner wall of the tower body of the decompression tower, the inner wall of the filter frame is provided with a water absorption sponge, the top end and the bottom end of the filter frame are respectively provided with a vent pipe, and the top of the tower is fixedly connected with a steam ejector.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the first motor is started to drive the first rotating shaft to rotate, so that the stirring blade and the mounting cylinder are driven to rotate, the catalytic slurry oil is stirred at a high speed by the stirring blade in the separation cavity, solid content substances in the catalytic slurry oil are separated out, solid content in the catalytic slurry oil can be effectively separated and removed, the solid content of the catalytic slurry oil is reduced, and the influence on the quality of catalytic slurry oil products due to overhigh solid content is avoided.

2. The invention is started by the second motor to drive the ventilating fan blades to rotate, thereby accelerating the rising speed of the steam in the tower body of the decompression tower and improving the working efficiency of the decompression tower.

3. The invention inputs the externally heated gas through the gas pump, and transmits the gas into the boiling kettle through the gas transmission cylinder, so that the catalytic slurry oil moves, the phenomenon of burning is reduced, the discharge speed of the product can be accelerated when the bottom product is discharged, and the subsequent use of the decompression tower is prevented from being influenced by burning and polluting the boiling kettle.

4. According to the invention, the filter frame and the water absorption sponge are arranged, so that moisture in the gas is filtered during vacuumizing, and the influence of excessive moisture on the vacuumizing effect and the air pressure in the pressure reduction tower is avoided.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a diagram of a separator assembly according to the present invention;

FIG. 3 is a partial cross-sectional view of the present invention;

FIG. 4 is an enlarged view taken at A of FIG. 2 according to the present invention;

FIG. 5 is an enlarged view of the invention at B of FIG. 3;

FIG. 6 is a diagram of a tray of the present invention;

FIG. 7 is a sectional view of a gas pipe according to the invention.

The reference numbers indicate:

1. a pressure reduction tower body; 2. a breather pipe; 3. a water-absorbing sponge; 4. a filter frame; 6. a distillation chamber; 7. a three-line-reduced oil distillation outlet; 8. a reduced second oil distillation outlet; 9. reducing a linear oil distillation outlet; 10. a steam injector; 11. the tower top; 12. a gas delivery pipe; 13. an air pump; 14. a main gear; 15. a separation chamber; 16. boiling the kettle; 17. installing a frame; 18. a first motor; 19. a first rotating shaft; 20. mounting the cylinder; 21. a bottom outlet; 22. vortex fan blades; 24. a heating layer; 25. a pinion gear; 26. stirring blades; 27. an arc-shaped baffle plate; 28. a column plate; 30. a support pillar; 31. a filter screen; 32. a guide plate; 34. an air delivery cylinder; 35. a sliding baffle; 37. a support plate; 38. a ventilating fan blade; 40. a second motor; 41. a mounting frame; 42. a first gear; 43. collecting a filter screen; 44. an inverse flow plate; 45. an absorber tube.

The objects, features, and advantages of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides a vacuum tower for removing solid content from catalytic slurry oil, including a vacuum tower body 1, wherein the top end of the vacuum tower body 1 is fixedly connected with a tower top 11, a boiling kettle 16 is arranged below the inner wall of the vacuum tower body 1, the bottom end of the boiling kettle 16 is fixedly connected with a tower bottom outlet 21, a distillation chamber 6 is arranged at the middle section inside the vacuum tower body 1, a separation component for removing solid content is arranged on the inner wall of the tower bottom outlet 21, an auxiliary gas supply component for accelerating vapor transportation is arranged on the inner wall of the vacuum tower body 1, and a protection component for preventing the boiling kettle 16 from being burnt is arranged on the inner wall of the boiling kettle 16; through setting up top of the tower 11, through 11 evacuation of carrying out to 1 inside of decompression tower body in the top of the tower, through setting up boiling kettle 16, the catalytic slurry oil carries out boiling treatment in boiling kettle 16, has realized carrying out the function that heats to the catalytic slurry oil.

Referring to fig. 2 and 4, the separating assembly includes a mounting frame 17, a first motor 18, a first rotating shaft 19 and a stirring blade 26, the mounting frame 17 is fixedly connected to the inner wall of the tower bottom outlet 21, the first motor 18 is fixedly connected to the inner wall of the mounting frame 17, the first rotating shaft 19 is installed at the top end of the first motor 18, the stirring blade 26 is fixedly connected to the outer wall of the first rotating shaft 19, the top end of the mounting frame 17 is fixedly connected with a collecting filter screen 43, the top end of the collecting filter screen 43 is fixedly connected with a separating cavity 15, the bottom end of the inner wall of the separating cavity 15 is rotatably connected with a plurality of second rotating shafts, the stirring blade 26 is installed on the outer wall of the second rotating shaft, the outer wall of the first rotating shaft 19 is fixedly connected with a main gear 14, the outer wall of the second rotating shaft is fixedly connected with a secondary gear 25, the secondary gear 25 is engaged with the main gear 14, the bottom end of the separating cavity 15 is fixedly connected with a plurality of absorbing tubes 45, the bottom ends of the absorbing tubes 45 are fixedly connected with a supporting spring, the other end of the supporting spring is fixedly connected with an inverse flow plate 44, an installation cylinder 20 is fixedly connected below the outer wall of the first rotating shaft 19, an annular groove is formed in the outer wall of the installation cylinder 20, and a plurality of vortex fan blades 22 are installed on the wall of the annular groove. The first motor 18 is started to drive the first rotating shaft 19 to rotate, so as to drive the stirring blade 26 and the mounting cylinder 20 to rotate, and the catalytic slurry oil is stirred at a high speed by the stirring blade 26 in the separation cavity 15, so that solid content substances in the catalytic slurry oil are separated. The mounting cylinder 20 rotates to drive the vortex fan blades 22 to rotate, catalytic slurry oil is stirred to form suction, the catalytic slurry oil is pushed open the counter-flow plate 44, enters the collecting filter screen 43 through the absorption pipe 45, solid substances in the catalytic slurry oil are collected in the collecting filter screen 43, solid substances in the catalytic slurry oil can be effectively separated and removed, the solid content of the catalytic slurry oil is reduced, and the quality of catalytic slurry oil products is prevented from being influenced by overhigh solid content.

Referring to fig. 3, 5 and 6, the auxiliary air supply assembly includes a second motor 40, a first gear 42 and a ventilating fan 38, the inner wall of the tower body 1 of the decompression tower is uniformly and fixedly connected with three mounting frames 41, the ventilating fan 38 is rotatably connected to the inner wall of the mounting frame 41, the inner wall of the mounting frame 41 is provided with a square groove, the second motor 40 is fixedly connected to the wall of the square groove, the first gear 42 is mounted at the top end of the second motor 40, the inner wall of the ventilating fan 38 is fixedly connected with a circular rack, the first gear 42 is meshed with the circular rack, one end of the mounting frame 41 is fixedly connected with a filter screen 31, the top end of the mounting frame 41 is fixedly connected with a plurality of support columns 30, the top ends of the support columns 30 are fixedly connected with a guide plate 32, the inner wall of the tower body 1 of the decompression tower is fixedly connected with three tower plates 28, each tower plate 28 is respectively positioned above the mounting frame 41, the center of the bottom end of the tower plate 28 is provided with a through hole, the top end of the tower plate 28 is fixedly connected with a mounting column, the top end of the installation column is fixedly connected with an arc baffle 27, the outer wall of the pressure reducing tower body 1 is fixedly connected with a minus one-line oil distillation outlet 9, a minus two-line oil distillation outlet 8 and a minus three-line oil distillation outlet 7 in sequence, the minus one-line oil distillation outlet 9, the minus two-line oil distillation outlet 8 and the minus three-line oil distillation outlet 7 are respectively connected with the bottom end of the tower plate 28, a filter frame 4 is fixedly connected above the inner wall of the pressure reducing tower body 1, the inner wall of the filter frame 4 is provided with a water-absorbing sponge 3, the top end and the bottom end of the filter frame 4 are respectively provided with a vent pipe 2, and a steam ejector 10 is fixedly connected with the tower top 11; start through second motor 40, drive logical fan blade 38 and rotate for the rising speed of vapour in decompression tower body 1 inside has improved the work efficiency of decompression tower, and after vapour filtered through filter screen 31, upwards guide to cowl 27 department through guide board 32 and liquefy, fall on column plate 28, the last oil distillate outlet output that through corresponding, supplementary vapour liquefaction that can be fine for the work efficiency of decompression tower.

Referring to fig. 2 and 7, a heating layer 24 is arranged on the inner wall of the boiling kettle 16, the protection assembly comprises a gas pipe 12, a plurality of gas pipes 12 are arranged on the inner wall of the heating layer 24, one of the gas pipes 12 penetrates through the outer wall of the tower body 1 of the pressure reduction tower, an air pump 13 is fixedly connected to one end of the gas pipe 12, a plurality of gas conveying cylinders 34 are uniformly arranged on the outer wall of the gas pipe 12, a supporting plate 37 is fixedly connected to the inner wall of each gas conveying cylinder 34, a sliding groove is formed in the inner wall of each gas conveying cylinder 34, a sliding baffle 35 is slidably connected to the groove wall of the sliding groove, a connecting spring is fixedly connected to the bottom end of each sliding baffle 35, and the other end of each connecting spring is fixedly connected to the top end of the corresponding supporting plate 37; the gas heated from outside is input by the air pump 13, when the catalytic slurry oil boils in the boiling kettle 16, the gas in the gas pipe 12 pushes the sliding baffle 35 in the gas pipe 34 open, and the gas is transmitted into the boiling kettle 16 by the gas pipe 34 (for example, the gas is input into the bottom, the middle and/or the upper part of the boiling kettle 16), so that at least part of the catalytic slurry oil moves, and the phenomenon of scorching is reduced. When the bottom product is discharged, the discharge speed of the product can be accelerated, and the phenomenon that the subsequent use of the decompression tower is influenced by the burning and pollution of the boiling kettle 16 is avoided.

The working process and principle of the invention are as follows: when the vacuum tower is used, catalytic slurry oil enters the vacuum tower body 1 through the feed port, the first rotating shaft 19 is driven to rotate by starting the first motor 18, so that the stirring blade 26 and the mounting cylinder 20 are driven to rotate, the catalytic slurry oil is stirred at a high speed by the stirring blade 26 in the separation cavity 15, solid substances in the catalytic slurry oil are separated out, the mounting cylinder 20 is driven to rotate, the vortex fan blade 22 is driven to rotate, the catalytic slurry oil is stirred to form suction force, the catalytic slurry oil pushes the counter-flow plate 44 open, the catalytic slurry oil enters the collecting filter screen 43 through the absorption pipe 45, the solid substances in the catalytic slurry oil are collected in the collecting filter screen 43, solid substances in the catalytic slurry oil can be effectively separated and removed, the solid contents of the catalytic slurry oil are reduced, the quality of catalytic slurry oil products is prevented from being influenced by the high solid contents, the fan blade 38 is driven to rotate by starting the second motor 40, the rising speed of steam in the vacuum tower body 1 is accelerated, the work efficiency of the decompression tower is improved, and after the steam is filtered by the filter screen 31, the steam is upwards guided to the arc baffle 27 through the guide plate 32 to be liquefied, falls onto the tower plate 28, and is finally output through the corresponding oil distillate outlet.

While the invention has been described in further detail in connection with specific embodiments thereof, it will be understood that the invention is not limited thereto, and that various other modifications and substitutions may be made by those skilled in the art without departing from the spirit of the invention, which should be considered to be within the scope of the invention as defined by the appended claims.

Claims

1. Solid content's vacuum tower in desorption catalysis slurry oil, including vacuum tower body (1), vacuum tower body (1) top fixedly connected with top of the tower (11), vacuum tower body (1) inner wall below is provided with boiling cauldron (16), outlet (21) at the bottom of boiling cauldron (16) bottom fixedly connected with, distillation chamber (6), its characterized in that have been seted up in the inside middle section of vacuum tower body (1):

the inner wall of the tower bottom outlet (21) is provided with a separation component for removing solid content, the inner wall of the pressure reduction tower body (1) is provided with an auxiliary gas supply component for accelerating steam delivery, and the inner wall of the boiling kettle (16) is provided with a protection component for preventing the boiling kettle (16) from being burnt;

the separation assembly comprises a mounting frame (17), a first motor (18), a first rotating shaft (19) and a stirring blade (26), the mounting frame (17) is fixedly connected to the inner wall of the tower bottom outlet (21), the first motor (18) is fixedly connected to the inner wall of the mounting frame (17), the first rotating shaft (19) is mounted at the top end of the first motor (18), the stirring blade (26) is fixedly connected to the outer wall of the first rotating shaft (19), the top end of the mounting frame (17) is fixedly connected with a collection filter screen (43), and the top end of the collection filter screen (43) is fixedly connected with a separation cavity (15);

the bottom end of the separation cavity (15) is fixedly connected with a plurality of absorption tubes (45), the bottom ends of the absorption tubes (45) are fixedly connected with supporting springs, the other ends of the supporting springs are fixedly connected with counter-flow plates (44), an installation cylinder (20) is fixedly connected below the outer wall of the first rotating shaft (19), the outer wall of the installation cylinder (20) is provided with an annular groove, and a plurality of vortex fan blades (22) are installed on the wall of the annular groove;

the auxiliary air supply assembly comprises a second motor (40), a first gear (42) and ventilation fan blades (38), the inner wall of the pressure reduction tower body (1) is uniformly and fixedly connected with three mounting frames (41), the ventilation fan blades (38) are rotatably connected to the inner wall of the mounting frames (41), square grooves are formed in the inner wall of the mounting frames (41), the second motor (40) is fixedly connected to the groove walls of the square grooves, the first gear (42) is mounted at the top end of the second motor (40), annular racks are fixedly connected to the inner walls of the ventilation fan blades (38), and the first gear (42) is meshed with the annular racks;

one end of the mounting rack (41) is fixedly connected with a filter screen (31), the top end of the mounting rack (41) is fixedly connected with a plurality of supporting columns (30), and the top ends of the supporting columns (30) are fixedly connected with a guide plate (32);

the inner wall of the decompression tower body (1) is fixedly connected with three tower plates (28), each tower plate (28) is respectively positioned above the mounting frame (41), the center of the bottom end of each tower plate (28) is provided with a through hole, the top end of each tower plate (28) is fixedly connected with a mounting column, the top end of each mounting column is fixedly connected with an arc-shaped baffle (27), the outer wall of the decompression tower body (1) is sequentially and fixedly connected with a first-line-reduced oil distillation outlet (9), a second-line-reduced oil distillation outlet (8) and a third-line-reduced oil distillation outlet (7), and the first-line-reduced oil distillation outlet (9), the second-line-reduced oil distillation outlet (8) and the third-line-reduced oil distillation outlet (7) are respectively connected with the bottom ends of the tower plates (28);

a heating layer (24) is arranged on the inner wall of the boiling kettle (16), the protection component comprises a plurality of gas pipes (12), the gas pipes (12) are arranged on the inner wall of the heating layer (24), one of the gas pipes (12) penetrates through the outer wall of the tower body (1) of the decompression tower, and one end of the gas pipe (12) is fixedly connected with a gas pump (13);

the gas transmission pipe (12) outer wall evenly is provided with a plurality of gas transmission cylinders (34), gas transmission cylinder (34) inner wall fixedly connected with backup pad (37), the spout has been seted up to gas transmission cylinder (34) inner wall, spout cell wall sliding connection has slide damper (35), slide damper (35) bottom fixedly connected with connecting spring, connecting spring other end fixed connection in backup pad (37) top.

2. The vacuum tower for removing solid content in catalytic slurry oil according to claim 1, wherein: separation chamber (15) inner wall bottom is rotated and is connected with a plurality of second pivots, stirring leaf (26) install in second pivot outer wall, first pivot (19) outer wall fixedly connected with master gear (14), second pivot outer wall fixedly connected with pinion (25), pinion (25) with master gear (14) mesh mutually.

3. The vacuum tower for removing solid content in catalytic slurry oil according to claim 1, wherein: decompression tower body (1) inner wall top fixedly connected with filters frame (4), it is provided with absorbent sponge (3) to filter frame (4) inner wall, it is provided with breather pipe (2) respectively to filter frame (4) top and bottom, top of the tower (11) fixedly connected with steam jet ejector (10).