Oil and gas rapid separation assembly for reducing coking in settlers of catalytic reactors

Abstract

The present invention relates to the technical field of settlers, and specifically discloses an oil-gas rapid separation component for reducing coking in a settler in a catalytic reactor. The interior of the vessel body has a first baffle, a second baffle and a third baffle in sequence from top to bottom. The interior of the vessel body is divided into a first air collecting chamber, a second air collecting chamber, a accommodating chamber and a material collecting chamber in sequence from top to bottom by the first baffle, the second baffle and the third baffle, and also includes a coarse cyclone separator and a plurality of single cyclone separators; a cleaning mechanism is installed in the interior of the material collecting chamber; and also includes a first induced draft assembly and a second induced draft assembly; on the one hand, the present invention can perform multi-stage separation of oil and gas through the cooperation of a coarse cyclone separator and a single cyclone separator; on the other hand, the oil and gas in the material collecting chamber can be flowed into the interior of the coarse cyclone separator through an induced draft duct and an air pipe for re-separation, thereby reducing the accumulation of oil and gas inside the material collecting chamber and reducing the coking inside the material collecting chamber.

Description

Technical Field

[0001] The invention relates to the technical field of settlers, and in particular to an oil-gas rapid separation component for reducing coking in a settler in a catalytic reactor. Background Art

[0002] The settling stripper is an important part of the catalytic cracking process. In order to separate the catalyst and oil and gas entering the settler from the riser reactor, and reduce the carried oil and gas and coke, a cyclone separator is provided in the settler, and a stripping section (or stripper) is provided below the settler. The cyclone separator can separate the catalyst and oil and gas from the solid state. The separated oil and gas are discharged through the oil and gas outlet and enter the fractionation system. Part of the oil and gas carried by the catalyst enters the stripper through the cyclone separator legs. The stripping steam replaces part of the oil and gas carried on the catalyst to complete the separation process of the catalyst and the oil and gas.

[0003] A Chinese patent with application number CN202010557024.2 discloses a sedimentation stripping method, in which a partition is arranged inside the settler, and the settler and the stripping section at the bottom are separated into two spaces by the partition; in addition to the reaction oil gas cyclone separator, a stripping outlet medium cyclone separator and a stripping outlet medium delivery pipe are also arranged above the partition in the settler; the stripping outlet medium delivery pipe enters the stripping outlet medium cyclone separator for further separation, thereby preventing the stripping outlet medium from entering the settler and preventing coking of the settler.

[0004] During use of the above-mentioned device, the catalyst and part of the oil and gas separated by the coarse cyclone separation system will be discharged to the bottom of the settler through the coarse cyclone legs. The catalyst with oil and gas on the surface separated will easily accumulate at the bottom of the settler after falling to the bottom of the settler to form scale. The scale will not only affect the sedimentation effect, but also may block the outlet pipe; and when the catalyst particles fall to the bottom of the settler through the coarse cyclone legs, if the flue gas is not completely removed, they will be deposited at the bottom of the settler together with the catalyst, which will not only affect the flow field distribution inside the settler, but may also cause coking. Summary of the invention

[0005] The present invention provides an oil-gas rapid separation component for reducing coking in a settler in a catalytic reactor, aiming to solve the problem in the related art that catalyst particles adhere to the bottom of the settler and residual oil and gas may cause coking at the bottom of the settler.

[0006] The oil-gas rapid separation component for reducing coking in a settler in a catalytic reactor of the present invention comprises a body, wherein the interior of the body is provided with a first baffle, a second baffle and a third baffle in order from top to bottom, and the interior of the body is divided into a first gas collecting chamber, a second gas collecting chamber, a accommodating chamber and a material collecting chamber in order from top to bottom by the first baffle, the second baffle and the third baffle; a cleaning mechanism is installed in the material collecting chamber, wherein the cleaning mechanism comprises an annular member, wherein the annular member comprises an upper annular box and a lower annular box, wherein the top of the upper annular box is fixed to the bottom of the third baffle, and the top of the lower annular box is rotatably connected to the bottom of the upper annular box, and an inner cavity of the upper annular box and an inner cavity of the lower annular box form an air collecting chamber for absorbing the oil and gas in the material collecting chamber, and a bottom opening is provided at the bottom of the lower annular box, and a cleaning member is fixed in the bottom opening for cleaning the catalyst particles attached to the inner wall of the material collecting chamber; a first air induction component is installed in the material collecting chamber for introducing the oil and gas in the material collecting chamber into the accommodating chamber for re-separation.

[0007] Preferably, a plurality of coarse cyclone separators and a plurality of single cyclone separators are provided inside the accommodating chamber, and the inlet ends of the two coarse cyclone separators are connected to the same air pipe, and the end of the air pipe away from the coarse cyclone separator is fixedly connected to an induced draft box, and the side of the induced draft box away from the air pipe is fixedly connected to a lifting pipe, and the end of the lifting pipe away from the induced draft box extends to the outside of the device body.

[0008] Preferably, the cleaning member includes a vertical section and an oblique section, and the top of the vertical section is fixed to the bottom of the lower annular box, and the top of the oblique section is fixed to the bottom of the vertical section, and one side of the oblique section has an arc-shaped guide surface.

[0009] Preferably, a first side opening is provided on one side of the induced draft box, a connecting tube is fixed on the inner wall of the first side opening, a second side opening is provided on the outer wall of one end of the connecting tube located inside the induced draft box, an inner bottom wall of the connecting tube is rotatably connected to a rotating wheel, a plurality of equidistantly arranged fan blades are installed on the outer surface of the rotating wheel, a guide block is fixed on the inner wall of the induced draft box, and the guide block has an arc-shaped surface, and the guide block can guide the gas to the fan blades of the fan blade.

[0010] Preferably, a limited circular hole is provided on the third partition plate, and the inner wall of the limited circular hole is rotatably connected with a rotating shaft, and one end of the rotating shaft passes through the induced draft box and is fixed to the bottom of the rotating wheel, and a transmission gear is fixed to the other end of the rotating shaft, and a transmission rack is installed on the inner wall of the lower annular box, and the transmission rack is meshingly connected with the transmission gear.

[0011] Preferably, the cleaning piece is provided with a first air induced component, which includes an air induced duct fixedly connected to the outer wall of the trachea, the other end of the air induced duct passes through a third partition and is fixedly connected to the top of the upper annular box, and a one-way valve is installed inside the air induced duct.

[0012] Preferably, an air outlet is provided on the arc-shaped guide surface of the oblique section, a filter is fixed on the air outlet, a ventilation cavity is provided in the cleaning member, and the ventilation cavity is connected with the air outlet through a connecting groove.

[0013] Preferably, the annular member is provided with a second air induction assembly, the second air induction assembly includes an adjusting box fixed on the bottom wall of the inner cavity of the lower annular box, the adjusting box is communicated with the inner cavity of the lower annular box, a lifting plate is provided in the adjusting box, the lifting plate can slide up and down in a sealed manner in the adjusting box, a lifting column is fixed on the top of the lifting plate, a circular ring is fixed on the inner cavity wall of the upper annular box, a limiting track is provided on the circular ring, a limiting sliding column is fixed on the surface of the lifting column, and the limiting sliding column is slidably connected to the inside of the limiting track.

[0014] Preferably, the inlet end of the single-cyclone separator is located inside the second gas collecting chamber, and the outlet end of the single-cyclone separator extends to the inside of the first gas collecting chamber through the first partition, the inlet end of the coarse cyclone separator is located inside the accommodating cavity, and the outlet end of the coarse cyclone separator extends to the inside of the second gas collecting chamber through the second partition, and the material legs of the coarse cyclone separator and the single-cyclone separator both extend to the inside of the collecting chamber.

[0015] Preferably, a bottom cylinder is fixed to the bottom end of the material leg of the coarse cyclone separator, the bottom of the bottom cylinder has a discharge port, the inner wall of the bottom cylinder is installed with a steam ring pipe, a connecting pipe is installed on the outside of the device body, and the other end of the connecting pipe passes through the accommodating cavity and the bottom cylinder is connected with the steam ring pipe.

[0016] The beneficial effects of the present invention are:

[0017] 1. The present invention drives the lower annular box to rotate by the transmission rack, so that the cleaning piece can clean the inner wall of the aggregate chamber, thereby preventing the catalyst particles from accumulating on the inner wall of the aggregate chamber and avoiding the coking phenomenon.

[0018] 2. The present invention allows the wind inside the aggregate chamber to enter the interior of the annular member through the cleaning member through the rotation of the annular member, and flow into the interior of the coarse cyclone separator through the induced air duct and the air pipe for separation, thereby reducing the accumulation of oil and gas inside the aggregate chamber and reducing the coking inside the aggregate chamber.

[0019] 3. The present invention can drive the lifting plate to continuously move up and down through the sliding of the limiting sliding column on the limiting sliding rail, so that the air outlet alternates between air intake and air discharge. When the lifting plate moves up, the absorption efficiency of the oil and gas inside the aggregate chamber can be accelerated, and the content of oil and gas inside the aggregate chamber and the residence time can be reduced; when the lifting plate moves down, part of the oil and gas can be blown out through the air outlet, thereby blowing off the catalyst particles attached to the surface of the filter screen, and at the same time, the oil and gas can be blown to the inner wall of the aggregate chamber, thereby preventing the catalyst particles from adhering to the inner wall of the aggregate chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 is a schematic structural diagram of a first three-dimensional cross section of the body of the present invention;

[0022] Figure 3 is a schematic structural diagram of a second three-dimensional cross section of the body of the present invention;

[0023] Figure 4 It is a structural schematic diagram of the cleaning mechanism of the present invention;

[0024] Figure 5 It is a structural schematic diagram of the annular member of the present invention;

[0025] Figure 6 is a schematic structural diagram of a first three-dimensional cross section of the bottom tube of the present invention;

[0026] Figure 7 is a structural schematic diagram of the second air induction assembly of the present invention;

[0027] Figure 8 is a schematic structural diagram of a first three-dimensional cross section of the connecting tube of the present invention;

[0028] Fig. 9 It is a schematic structural diagram of a ring of the present invention;

[0029] Fig.10 It is a structural schematic diagram of the connecting groove of the present invention;

[0030] Fig.11 It is a schematic structural diagram of a coarse cyclone separator of the present invention;

[0031] Fig.12 It is a structural schematic diagram of the single-rotation separator of the present invention.

[0032] Reference numerals:

[0033] 10. Body; 101. First baffle; 102. Second baffle; 103. Third baffle; 104. First gas collecting chamber; 105. Second gas collecting chamber; 106. Accommodating chamber; 107. Material collecting chamber; 11. Coarse cyclone separator; 12. Single cyclone separator; 13. Bottom tube; 14. Steam ring pipe; 15. Air pipe; 16. Air box; 17. Riser;

[0034] 20. cleaning mechanism; 21. annular member; 2101. upper annular box; 2102. lower annular box; 22. bottom opening; 23. cleaning member; 24. first side opening; 25. connecting tube; 26. second side opening; 27. rotating wheel; 28. fan blade plate; 29. ​​guide block; 210. rotating shaft; 211. transmission gear; 212. transmission rack; 213. limiting circular hole;

[0035] 30. First air induction assembly; 31. Air induction duct; 32. Air outlet; 33. Filter; 34. Ventilation cavity; 35. Communication groove;

[0036] 40. Second air induction assembly; 41. Adjustment box; 42. Lifting plate; 43. Lifting column; 44. Ring; 45. Limiting track; 46. Limiting sliding column. DETAILED DESCRIPTION

[0037] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0038] like Figures 1 to 12 As shown, an oil-gas rapid separation assembly for reducing coking in a settler in a catalytic reactor of the present invention comprises: a body 10, wherein a first baffle 101, a second baffle 102 and a third baffle 103 are fixed in sequence from top to bottom inside the body 10, and the interior of the body 10 is divided into a first gas collecting chamber 104, a second gas collecting chamber 105, a containing chamber 106 and a collecting chamber 107 by the first baffle 101, the second baffle 102 and the third baffle 103, The gas collecting chamber 104 is located above the first partition 101, the second gas collecting chamber 105 is located between the first partition 101 and the second partition 102, the accommodating chamber 106 is located between the second partition 102 and the third partition 103, the collecting chamber 107 is located below the third partition 103, and a plurality of coarse cyclone separators 11 and four single cyclone separators 12 are installed between the second partition 102 and the third partition 103, and the plurality of coarse cyclone separators 11 are located between the four single cyclone separators 12.

[0039] The outer walls of the single-cyclone separator 12 and the coarse-cyclone separator 11 both have an inlet end, the tops of the single-cyclone separator 12 and the coarse-cyclone separator 11 both have a top outlet end, the bottoms of the single-cyclone separator 12 and the coarse-cyclone separator 11 both have a bottom outlet end, the inlet ends of the coarse-cyclone separator 11 and the single-cyclone separator 12 are used to inhale oil and gas and separate them, the top outlet ends of the single-cyclone separator 12 and the coarse-cyclone separator 11 are used to discharge the separated oil and gas, and the bottom outlet ends of the single-cyclone separator 12 and the coarse-cyclone separator 11 are used to discharge the separated catalyst particles.

[0040] The inlet end of the coarse cyclone separator 11 is located inside the accommodating chamber 106, the top outlet end of the coarse cyclone separator 11 passes through the second partition plate 102 and extends to the inside of the second gas collecting chamber 105, and the bottom outlet end of the coarse cyclone separator 11 passes through the third partition plate 103 and extends to the inside of the collecting chamber 107.

[0041] The inlet end of the single-cyclone separator 12 is located inside the second air collecting chamber 105, the top outlet end of the single-cyclone separator 12 passes through the first partition plate 101 and extends to the inside of the first air collecting chamber 104, and the bottom outlet end of the single-cyclone separator 12 passes through the third partition plate 103 and extends to the inside of the material collecting chamber 107.

[0042] The inlet ends of the multiple coarse cyclone separators 11 are interconnected, and the inlet ends of the multiple coarse cyclone separators 11 are commonly connected to an air pipe 15, one end of the air pipe 15 away from the coarse cyclone separator 11 is fixedly connected to an induced draft box 16, the side of the induced draft box 16 away from the air pipe 15 is fixedly connected to a lifting pipe 17, and one end of the lifting pipe 17 away from the induced draft box 16 extends to the outside of the device body 10.

[0043] A bottom cylinder 13 is fixed at the bottom end of the material leg of the coarse cyclone separator 11, and a discharge port is provided at the bottom of the bottom cylinder 13. A steam ring pipe 14 is installed on the inner wall of the bottom cylinder 13. A connecting pipe is installed on the outside of the body 10, and the other end of the connecting pipe passes through the third partition plate 103 and the bottom cylinder 13 to communicate with the steam ring pipe 14.

[0044] When in use, the oil gas and catalyst in the lifting pipe 17 pass through the draft box 16 and the air pipe 15 in turn and enter the interior of the coarse cyclone separator 11. The catalyst particles separated by the coarse cyclone separator 11 fall into the interior of the bottom cylinder 13. The steam discharged from the steam ring pipe 14 strips the catalyst in the bottom cylinder 13, and the oil gas in the catalyst can be further separated. The catalyst in the bottom cylinder 13 can fall into the collecting chamber 107 through the discharge port at the bottom thereof, and flow to the stripping section connected to the bottom of the body 10. The gas separated by the coarse cyclone separator 11 flows to the inside of the second gas collecting chamber 105 through the outlet end, and the gas inside the second gas collecting chamber 105 flows to the single cyclone separator 12 for separation again. The catalyst separated by the single cyclone separator 12 is discharged to the inside of the collecting chamber 107 through its material legs, and the gas separated by the single cyclone separator 12 flows to the inside of the first gas collecting chamber 104 through its outlet end, and the gas inside the first gas collecting chamber 104 can be discharged to the next working system through the outlet pipe at the top of the device body 10.

[0045] refer to Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, a cleaning mechanism 20 is disposed inside the aggregate chamber 107 for cleaning the catalyst particles attached to the inner wall of the aggregate chamber 107 , thereby preventing the catalyst particles from accumulating on the aggregate chamber 107 and forming agglomerates.

[0046] The cleaning mechanism 20 includes an annular member 21 fixed to the bottom of the third partition 103, and the annular member 21 includes an upper annular box 2101 and a lower annular box 2102. The top of the upper annular box 2101 is fixed to the bottom of the third partition 103, and the box opening of the upper annular box 2101 faces downward, the top of the lower annular box 2102 is slidably connected to the bottom of the upper annular box 2101, and the box opening of the lower annular box 2102 faces upward, and the inner cavity of the upper annular box 2101 and the inner cavity of the lower annular box 2102 form an air collecting chamber, and the bottom of the lower annular box 2102 is provided with two symmetrical bottom openings 22.

[0047] A cleaning piece 23 is fixed to the inner wall of the bottom opening 22. The cleaning piece 23 includes a vertical section and an oblique section. The top of the vertical section is fixed to the inner wall of the bottom opening 22, and the top of the oblique section is fixed to the bottom of the vertical section. One side of the oblique section has an arc-shaped guide surface. The cleaning piece 23 is used to clean the catalyst particles attached to the inner wall of the aggregate chamber 107, thereby preventing the catalyst particles from accumulating on the inner wall of the aggregate chamber 107 and forming agglomerates.

[0048] A first side opening 24 is provided on one side of the induced draft box 16, a connecting tube 25 is fixed to the inner wall of the first side opening 24, a second side opening 26 is provided on the outer wall of one end of the connecting tube 25 located inside the induced draft box 16, a rotating wheel 27 is rotatably connected to the inner bottom wall of the connecting tube 25, a plurality of equidistantly arranged fan blades 28 are installed on the outer surface of the rotating wheel 27, a guide block 29 is fixed to the inner wall of the induced draft box 16, and the guide block 29 has an arc-shaped surface for guiding the gas entering the induced draft box 16 from the lifting pipe 17, the guided gas can enter the connecting tube 25 through the second side opening 26 and drive the rotating wheel 27 to rotate through the fan blades 28.

[0049] A limiting circular hole 213 is provided on the third partition plate 103, and the inner wall of the limiting circular hole 213 is rotatably connected with a rotating shaft 210, and the top of the rotating shaft 210 passes through the induced draft box 16 and is fixed to the bottom of the rotating wheel 27, and a transmission gear 211 is fixed to the bottom of the rotating shaft 210, and a transmission rack 212 is installed on the inner side of the lower annular box 2102, and the transmission rack 212 is meshingly connected with the transmission gear 211, which is used to drive the lower annular box 2102 to rotate, thereby driving the cleaning member 23 to clean the catalyst particles attached to the inner wall of the aggregate chamber 107.

[0050] When the oil and gas inside the lifting pipe 17 pass through the induced draft box 16, the width of the air inlet end of the induced draft box 16 is reduced due to the obstruction of the guide block 29, thereby reducing the area where the oil and gas flow. That is to say, after the gas passes through the guide block 29, the pressure and flow rate of the gas will increase, and the gas drives the rotating wheel 27 to rotate through the fan plate 28, and the rotating wheel 27 drives the transmission gear 211 to rotate through the rotating shaft 210, and the transmission gear 211 drives the lower annular box 2102 to rotate through the transmission rack 212, thereby driving the cleaning piece 23 to clean the inner wall of the aggregate chamber 107 through the lower annular box 2102, and the catalyst particles attached to the inner wall of the aggregate chamber 107 can flow along the arc-shaped guide surface of the oblique section to the inside of the stripping section connected to the bottom of the body 10.

[0051] As described above, by driving the transmission gear 211 and the transmission rack 212 to drive the lower annular box 2102 to rotate, the cleaning member 23 can clean the inner wall of the aggregate chamber 107, thereby preventing the catalyst particles from accumulating on the inner wall of the aggregate chamber 107 and causing coking. Embodiment 2

[0052] Since the catalyst particles separated by the coarse cyclone separator 11 and the single cyclone separator 12 contain oil and gas, when the catalyst particles containing oil and gas are discharged through the feed leg, the oil and gas will be suspended inside the aggregate chamber 107. When the oil and gas stay for too long, secondary cracking reaction will occur, increasing the possibility of coking. In view of this, improvements are made on the basis of the first embodiment.

[0053] refer to Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 As shown, a first air induced draft component 30 is provided on the cleaning piece 23, and the first air induced draft component 30 includes an air induced draft duct 31 fixedly connected to the outer wall of the air pipe 15, and the other end of the air induced draft duct 31 passes through the third partition plate 103 and is fixedly connected to the top of the upper annular box 2101, and a one-way valve is installed inside the air induced draft duct 31, and the one-way valve can ensure that the gas can only flow from the lower part to the upper part of the air induced draft duct 31.

[0054] An air port 32 is formed on the arc-shaped guide surface, a filter screen 33 is fixed on the air port 32 , a ventilation cavity 34 is formed in the cleaning member 23 , and the ventilation cavity 34 is connected with the air port 32 through a connecting groove 35 .

[0055] A second air induction assembly 40 is provided on the annular member 21, and each cleaning member 23 corresponds to a second air induction assembly 40; the second air induction assembly 40 includes an adjusting box 41 fixed on the bottom wall of the inner cavity of the lower annular box 2102, and the adjusting box 41 is connected to the inner cavity of the lower annular box 2102; the lower part of the adjusting box 41 is connected to the interior of the cleaning member 23; a lifting plate 42 is provided in the adjusting box 41, and the lifting plate 42 can slide up and down in the adjusting box 41 in a sealed manner; a lifting column 43 is fixed on the top of the lifting plate 42, and a circular ring 44 is fixed to the inner cavity wall of the upper annular box 2101, and a limiting track 45 is provided on the circular ring 44, and the track of the limiting track 45 is wavy, and a limiting sliding column 46 is fixed on the surface of the lifting column 43, and the limiting sliding column 46 is slidably connected to the inside of the limiting track 45. During the rotation of the lower annular box 2102 relative to the upper annular box 2101, the limit slide 46 can be driven to slide inside the limit track 45. Since the trajectory of the limit track 45 is wavy, the limit slide 46 can move up and down when sliding inside the limit track 45. Then, the limit slide 46 drives the lifting plate 42 to move up and down through the lifting column 43 during the up and down movement.

[0056] It should be noted that when the limit slide 46 drives the lifting plate 42 to rise to a certain height through the lifting column 43, the lifting plate 42 can be separated from the adjustment box 41 and enter the cavity of the lower ring box 2102. At this time, the lower ring box 2102 is connected with the adjustment box 41 and the cleaning member 23. When the limit slide 46 drives the lifting plate 42 to fall to a certain height through the lifting column 43, the lifting plate 42 can enter the adjustment box 41 again and form a seal with the inner wall of the adjustment box 41. The height of the lifting plate 42 rising or falling can be achieved by controlling the length of the lifting column 43.

[0057] During the operation of the device, when the high-pressure and fast airflow enters the interior of the coarse cyclone separator 11 through the air pipe 15, the induced air duct 31 connected to the air pipe 15 will be affected by the Venturi effect, so that the gas inside the induced air duct 31 is affected by the negative pressure and enters the air pipe 15, and a negative pressure is formed inside the induced air duct 31, and the bottom end of the induced air duct 31 will draw the gas inside the upper annular box 2101 and the lower annular box 2102; at the same time, when the lower annular box 2102 is in a rotating state, the limit slide 46 slides inside the limit track 45, and when the limit slide 46 slides from the bottom end of the limit track 45 to the top thereof, the lifting column 43 drives the lifting plate 42 to move upward. When the lifting plate 42 moves upward to the interior of the lower annular box 2102, the lower annular box 2102 is connected with the regulating box 41 and the cleaning piece 23. At this time, the bottom end of the air duct 31 is connected with the upper annular box 2101, the interior of the lower annular box 2102, the regulating box 41, and the cleaning piece 23. Then, the gas inside the air port 32 can be sucked through the ventilation cavity 34 and the connecting groove 35, so that the oil and gas inside the aggregate chamber 107 can be absorbed, and the extracted oil and gas can be sent to the coarse cyclone separator 11 through the air pipe 15 for further processing, so that the oil and gas existing in the aggregate chamber 107 can be timely removed and processed to prevent coking. In this process, the filter screen 33 can play a filtering role to prevent catalyst particles from flowing into the interior of the cleaning piece 23.

[0058] As the lower annular box 2102 continues to rotate, when the limiting slide column 46 slides from the top end of the limiting track 45 to its bottom end, the lifting column 43 drives the lifting plate 42 to move downward. When the lifting plate 42 enters the regulating box 41 again and forms a seal with the inner wall of the regulating box 41, since there is still a part of gas in the regulating box 41 below the lifting plate 42, when the lifting plate 42 moves downward in the regulating box 41, it will push the gas at the bottom of the regulating box 41 to flow into the ventilation chamber 34, and the gas inside the ventilation chamber 34 and the gas inside the connecting groove 35 can flow to the air outlet 32 ​​and be discharged. When the gas passes through the air outlet 32, it can blow off the catalyst particles attached to the surface of the filter screen 33 to prevent the filtered catalyst particles from clogging the filter screen 33, thereby enabling the filter screen 33 to maintain a good filtering effect.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An oil-gas rapid separation assembly for reducing coking in a settler in a catalytic reactor, comprising a body, characterized in that: The interior of the vessel body is provided with a first partition, a second partition and a third partition from top to bottom in sequence, and the interior of the vessel body is divided into a first gas collecting chamber, a second gas collecting chamber, a containing chamber and a material collecting chamber in sequence from top to bottom by the first partition, the second partition and the third partition; A cleaning mechanism is installed inside the aggregate chamber, and the cleaning mechanism includes an annular member, and the annular member includes an upper annular box and a lower annular box. The top of the upper annular box is fixed to the bottom of the third partition plate, and the top of the lower annular box is rotatably connected to the bottom of the upper annular box. An air collecting chamber is formed between the inner cavity of the upper annular box and the inner cavity of the lower annular box, which is used to absorb the oil and gas inside the aggregate chamber. A bottom opening is provided at the bottom of the lower annular box, and a cleaning member is fixed inside the bottom opening, which is used to clean the catalyst particles attached to the inner wall of the aggregate chamber. A first air induction assembly is installed inside the material collection chamber, which is used to introduce the oil and gas inside the material collection chamber into the accommodating chamber and separate them again; Two coarse cyclone separators and a plurality of single cyclone separators are arranged inside the accommodating chamber, and the inlet ends of the two coarse cyclone separators are connected to the same air pipe; The cleaning piece includes a vertical section and an oblique section; The cleaning member is provided with a first air induction assembly, the first air induction assembly comprising an air induction duct fixedly connected to the outer wall of the air pipe, the other end of the air induction duct passes through the third partition plate and is fixedly connected to the top of the upper annular box; An air outlet is provided on the arc-shaped guide surface of the oblique section, a filter screen is fixed on the air outlet, a ventilation cavity is provided in the cleaning member, and the ventilation cavity is connected with the air outlet through a connecting groove; The annular member is provided with a second air induction assembly, which includes an adjustment box fixed on the bottom wall of the inner cavity of the lower annular box, the adjustment box is communicated with the inner cavity of the lower annular box, a lifting plate is provided in the adjustment box, the lifting plate can slide up and down in the adjustment box in a sealed manner, a lifting column is fixed on the top of the lifting plate, a circular ring is fixed on the inner cavity wall of the upper annular box, a limiting track is provided on the circular ring, a limiting sliding column is fixed on the surface of the lifting column, and the limiting sliding column is slidably connected to the inside of the limiting track.

2. The oil-gas rapid separation assembly for reducing coking in a settler in a catalytic reactor according to claim 1, characterized in that: One end of the air pipe away from the coarse cyclone separator is fixedly connected to an induced draft box, one side of the induced draft box away from the air pipe is fixedly connected to a lifting pipe, and one end of the lifting pipe away from the induced draft box extends to the outside of the device body.

3. The oil-gas rapid separation assembly for reducing coking in a settler in a catalytic reactor according to claim 2, characterized in that: The top of the vertical section is fixed to the bottom of the lower annular box, and the top of the oblique section is fixed to the bottom of the vertical section. One side of the oblique section is provided with an arc-shaped guide surface.

4. The oil-gas rapid separation assembly for reducing coking in a settler in a catalytic reactor according to claim 3, characterized in that: A first side opening is provided on one side of the induced draft box, a connecting tube is fixed on the inner wall of the first side opening, a second side opening is provided on the outer wall of one end of the connecting tube located inside the induced draft box, a rotating wheel is rotatably connected to the inner bottom wall of the connecting tube, a plurality of equidistantly arranged fan blades are installed on the outer surface of the rotating wheel, a guide block is fixed on the inner wall of the induced draft box, and the guide block has an arc-shaped surface, and the guide block can guide the gas to the fan blades of the fan blade.

5. The oil-gas rapid separation assembly for reducing coking in a settler in a catalytic reactor according to claim 4, characterized in that: A limited circular hole is provided on the third partition plate, and a rotating shaft is rotatably connected to the inner wall of the limited circular hole, and one end of the rotating shaft passes through the induced draft box and is fixed to the bottom of the rotating wheel, and a transmission gear is fixed to the other end of the rotating shaft, and a transmission rack is installed on the inner wall of the lower annular box, and the transmission rack is meshingly connected with the transmission gear.

6. The oil-gas rapid separation assembly for reducing coking in a settler in a catalytic reactor according to claim 5, characterized in that: A one-way valve is installed inside the air duct.

7. The oil-gas rapid separation assembly for reducing coking in a settler in a catalytic reactor according to claim 2, characterized in that: The inlet end of the single-cyclone separator is located inside the second gas collecting chamber, and the outlet end of the single-cyclone separator extends to the inside of the first gas collecting chamber through the first partition. The inlet end of the coarse cyclone separator is located inside the accommodating cavity, and the outlet end of the coarse cyclone separator extends to the inside of the second gas collecting chamber through the second partition, and the material legs of the coarse cyclone separator and the single-cyclone separator both extend to the inside of the collecting chamber.

8. The oil-gas rapid separation assembly for reducing coking in a settler in a catalytic reactor according to claim 2, characterized in that: A bottom cylinder is fixed at the bottom end of the material leg of the coarse cyclone separator, the bottom of the bottom cylinder has a discharge port, the inner wall of the bottom cylinder is installed with a steam ring pipe, the outside of the body is installed with a connecting pipe, and the other end of the connecting pipe passes through the accommodating cavity and the bottom cylinder is connected with the steam ring pipe.

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