CN102755866A - Stripper with multiple layers of stacked grids - Google Patents
Stripper with multiple layers of stacked grids Download PDFInfo
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- CN102755866A CN102755866A CN2012102245911A CN201210224591A CN102755866A CN 102755866 A CN102755866 A CN 102755866A CN 2012102245911 A CN2012102245911 A CN 2012102245911A CN 201210224591 A CN201210224591 A CN 201210224591A CN 102755866 A CN102755866 A CN 102755866A
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- grid
- catalyst
- stripper
- longitudinal grille
- flase floor
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Abstract
The invention discloses a stripper with multiple layers of stacked grids, relating to a steam stripping device. The stripper comprises a stripper body, layout layers of longitudinal grid (4) for dispersing catalysts, and layout layers of transverse girds (5) for carrying the catalysts on the upper layers, wherein the outer edge surfaces of the longitudinal grids (4) and the transverse grids (5) are matched with the inner wall of a barrel body (3) in a coincided manner and fixed on the inner wall of the barrel body (3); at least eight layers of the longitudinal grids (4) and the transverse grids (5) are arranged inside the barrel body respectively; and the longitudinal grids on the upper layers are pressed on the upper surfaces of the transverse grids (5) on the lower layers to form layer-upon-layer stacking. The technical scheme provided by the invention can further enlarge the distribution area of the catalysts, so that the catalyst and stream are contacted more sufficiently, and the passing time of the catalysts is prolonged.
Description
[technical field]
The present invention relates to a kind of stripper plant in the catalytic cracking unit of petrochemical industry, especially relate to a kind of seamless stripper plant that forms by the stack of multilayer grid, be specifically related to a kind of seamless and efficient stripper of multilayer grid stack formation.
[background technology]
As everyone knows, the effect of stripper is to utilize the coke stripping in the oil gas that steam carries catalyst to go out, and the amount of the reaction oil gas that carries from the reclaimable catalyst of settler cyclone dip-leg accounts for 2% ~ 4% of product population.Can be caused heavy economic losses if this part oil gas entering regenerator burns, so commercial plant all is provided with stripper;
I am at the Chinese patent of first to file: " patent name, a kind of stripper that can effectively improve distribution area of catalyst; Granted publication number, CN10569844B " a kind of stripper that can effectively improve distribution area of catalyst is disclosed, comprise the stripper body and comprise one deck bullet layout that is used for dispersed catalyst; Be used to accept the intersection bullet layout of last layer catalyst; The said one deck bullet layout that is used for dispersed catalyst mainly comprises a plurality of bullets and Duo Gen support bar or encloses support bar more; The two ends of said support bar or most external support bar are fixed on through fixed mechanism on the inwall of cylindrical shell, bullet arranged in a crossed manner or enclose bullet arranged in a crossed manner on the support bar on many support bars more; Promptly on two support bars bullet is set at interval; The bullet gap of the corresponding aforementioned support bar of difference on the gap of adjacent two support bar formation in addition; Be divided into two quadrant bullets in the middle part of forming the intersection layout of bullet or enclosing on the support bar more, the outer ring is provided with bullet at place, inner ring space successively at interval; The both sides of said bullet or outer rim are fixed on the common one deck bullet layout that constitutes said dispersed catalyst on the upper side of support bar through securing member respectively; The said the same setting of intersection bullet layout support bar that is used to accept the last layer catalyst; The catalyst that said bullet is set to each bullet layout of last layer falls and bullet to be set under mouthful place respectively, the connected mode of said bullet and support bar, support bar and cylinder inboard wall is identical be configured for accepting the last layer catalyst jointly intersect the bullet layout; One deck bullet layout of said dispersed catalyst is arranged in a crossed manner with the bullet layout of intersecting of accepting the last layer catalyst, but the multilayer bullet layout that is arranged in the cylindrical shell is at least four layers.
Can know through foregoing; This patent has realized improving the technological demand of Stripping effect preferably; In right actual the use, the intersection bullet of one deck catalyst left between the bullet than large-spacing with the intersecting of catalyst of adjacent top or bottom, and this is limited space waste at interval; In the stripper of equal height area, want further to improve Stripping effect and be difficult to; Find in our once unintentionally the error in test; Bullet and bullet are piled up together, and stripping is the same near effect on the contrary, in the stripper of original height, can place the bullet of many at least twices; At this moment in the stripping operation; Effect just is able to manifest, and in use support strength is not enough for right bullet, just can occur the drawback of strong point distortion after long-time; So how to design a kind of catalyst material-feeding mechanism that not only makes catalyst distribution comparatively evenly improve Stripping effect and have higher support strength, become the bottleneck of enforcement.
[summary of the invention]
Reduce the too high problem of coke content in the reaction oil gas problem that accounts for product population 2% ~ 4% and the oil gas of carrying secretly in order further to overcome from the reclaimable catalyst of settler cyclone dip-leg; Burnt the technical bottleneck that can cause heavy economic losses if get into regenerator, the purpose of this invention is to provide a kind of stripper of multilayer grid stack with this part oil gas; Technical scheme according to the invention can further improve distribution area of catalyst, makes that catalyst is more abundant with contacting of steam, prolongs the catalyst transit time.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of stripper of multilayer grid stack comprises the stripper body and comprises one deck Longitudinal grille layout that is used for dispersed catalyst; Be used to accept the lined grid layout of last layer catalyst; The said one deck Longitudinal grille layout that is used for dispersed catalyst comprises that mainly complex root is flase floor tiltedly upright and that be provided with at interval; Each root flase floor upper end of said complex root flase floor is the lower end of corresponding another another the adjacent root flase floor of angle downward vertically; Form the blind shaped structure of opening by the complex root flase floor, said complex root flase floor constitutes integrative-structure through syndeton; The said the same setting of lined grid layout complex root flase floor that is used to accept the last layer catalyst; The complex root flase floor of integrative-structure and the complex root flase floor of last layer integrative-structure are traverse, just the Longitudinal grille layout of last layer catalyst and the lined grid layout of accepting the last layer catalyst pile up back flase floor together be sphere of movements for the elephants shape structure catalyst intersect the grid layout; The outer edge surface of said Longitudinal grille, lined grid and the inwall of cylindrical shell kiss are joined and are fixed on the inwall of cylindrical shell; The Longitudinal grille and the lined grid that wherein are arranged in the cylindrical shell are at least eight layers respectively, and the Longitudinal grille of last layer is pressed in down to form on the face of lined grid upper side of one deck and laminates layer by layer.
The stripper of described multilayer grid stack is evenly distributed with gas port on each flase floor.
The stripper of described multilayer grid stack, each upper and lower end face that tiltedly founds flase floor is respectively the last plane of level and the lower plane of level.
The stripper of described multilayer grid stack, the syndeton that said complex root flase floor passes through is that the outer rim of Longitudinal grille and lined grid is respectively equipped with the ring-type installing ring, the exterior face of installing ring connects the inwall of cylindrical shell; Or in the middle part of the flase floor of Longitudinal grille and lined grid through hole is set, and through hole runs through through connecting rod makes Longitudinal grille or lined grid screen be integrally formed structure, and Longitudinal grille or lined grid outer edge surface are connected with the inwall of cylindrical shell.
The stripper of described multilayer grid stack, the Longitudinal grille and the lined grid that are provided with installing ring are independent Longitudinal grille and the lined grid with installing ring that are provided with Longitudinal grille that is integrally formed through connecting rod or lined grid; Or independent Longitudinal grille or the lined grid that are integrally formed through connecting rod that are provided with; Or the Longitudinal grille of aforementioned dual mode, lined grid are crisscross arranged.
The stripper of described multilayer grid stack, the connecting rod that is provided with on the flase floor of said Longitudinal grille and lined grid is at least two.
The stripper of described multilayer grid stack is provided with catalyst hopper in the cylindrical shell upper end.
The stripper of described multilayer grid stack is provided with funnel down in the cylindrical shell of the Longitudinal grille of bottom one deck or lined grid bottom.
The stripper of described multilayer grid stack is provided with steam inlet duct at the lower ports place of following funnel, and said steam inlet duct outreaches the main steam header road.
The stripper of described multilayer grid stack, the lower end of cylindrical shell is fixedly connected with the open topped of catalyst hopper, and the lower ports of said catalyst hopper is provided with the catalyst regeneration mechanism pipeline of interchange catalyst regeneration sector.
Owing to adopted technique scheme, the invention has the beneficial effects as follows;
The stripper of multilayer grid according to the invention stack is put through the staggered of Longitudinal grille and lined grid, and catalyst is regulated obviously from uniformity to be increased; The effect that is produced is that catalyst is in dirty process; Dirty to change a plurality of little waterfalls of grid type multi-path into dirty by waterfall shape for following circulation flow path; It is dirty just to utilize the grid that forms at interval between flase floor and the flase floor of Longitudinal grille and lined grid to replace many waterfalls, forms multiple conversions, in conversion each time, forms the catalytic process of primary steam contact; And it is vaporific to make that dirty catalyst forms during steam is risen by gas port; Further strengthened the catalysis area, significantly increased, catalyst has been distributed by original waterfall shape change to the distribution of latticed waterfall with respect to formerly inventing the catalysis channel path; Reach the more refinement, more even of real meaning, corresponding catalyst and steam contact area also significantly growth.
After the present invention is laminated by Longitudinal grille and lined grid layer by layer; Transit time prior art at least relatively increases near one times " with respect to the first height of original awl dish joint density ": catalyst flows number of turns also by improving near one times or surpassing more than one times; The catalyst circulation time is prolonged relatively; For following fluid catalyst provides more sufficient oil gas attaching space and chance with the rising stripped vapor, carry oil gas thereby make stripped vapor fully contact also the stripping surface with catalyst; In view of bright existing the increasing of Stripping effect of the present invention, stripper of the present invention possibly drop to 5.0 or below.
[description of drawings]
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a lined grid structural representation of the present invention;
Fig. 3 is a Longitudinal grille structural representation of the present invention;
Fig. 4 is a flase floor perspective view of the present invention;
Fig. 5 is the laminated structure sketch map of Longitudinal grille of the present invention, lined grid;
In the drawings: 1, catalyst hopper; 2, installing ring; 3, cylindrical shell; 4, Longitudinal grille; 5, lined grid; 6, main steam header road; 7, following funnel; 8, steam inlet duct; 9, catalyst hopper; 10, catalyst regeneration mechanism pipeline; 11, gas port; 12, go up the plane; 13, lower plane; 14, flase floor.
[specific embodiment]
Can more detailed explanation the present invention through following embodiment, the present invention is not limited to the compound mode of following embodiment;
Open the object of the invention is intended to protect all variations and the improvement in the scope of the invention, comprises the version that is equal to replacement;
In conjunction with accompanying drawing 1～5 disclosed structure, the stripper of multilayer grid stack according to the invention comprises the stripper body and comprises one deck Longitudinal grille 4 layouts that are used for dispersed catalyst; Be used to accept lined grid 5 layouts of last layer catalyst; Said one deck Longitudinal grille 4 layouts that are used for dispersed catalyst comprise that mainly complex root is flase floor 14 tiltedly upright and that be provided with at interval; Each root flase floor 14 upper end of said complex root flase floor 14 are the lower end of corresponding another another the adjacent root flase floor 14 of angle downward vertically; Form the blind shaped structure of opening by complex root flase floor 14; Said complex root flase floor 14 constitutes integrative-structure through syndeton; On each flase floor 14, be evenly distributed with gas port 11, the upper and lower end face of said each tiltedly upright flase floor 14 is respectively the last plane 12 of level and the lower plane 13 of level; The said lined grid 5 layout complex root flase floors 14 the same settings that are used to accept the last layer catalyst; The complex root flase floor 14 of integrative-structure is a traverse with the complex root flase floor 14 of last layer integrative-structure; Just Longitudinal grille 4 layouts of last layer catalyst and lined grid 5 layouts of accepting the last layer catalyst pile up back flase floor 14 together be sphere of movements for the elephants shape structure catalyst intersect the grid layout; On each flase floor 14, be evenly distributed with gas port 11, each upper and lower end face that tiltedly founds flase floor 14 is respectively the last plane 12 of level and the lower plane 13 of level; The outer edge surface of said Longitudinal grille 4, lined grid 5 and the inwall of cylindrical shell 3 kiss are joined and are fixed on the inwall of cylindrical shell 3; The Longitudinal grille 4 that wherein is arranged in the cylindrical shell is at least eight layers respectively with lined grid 5, and the Longitudinal grille 4 of last layer is pressed in down to form on the face of lined grid 5 upper side of one deck and laminates layer by layer; Be provided with catalyst hopper 1 in cylindrical shell 3 upper ends.
Further, the lower end of cylindrical shell is fixedly connected with the open topped of catalyst hopper 9, and the lower ports of said catalyst hopper 9 is provided with the catalyst regeneration mechanism pipeline 10 of interchange catalyst regeneration sector.
Further, the syndeton that said complex root flase floor 14 passes through is that the outer rim of Longitudinal grille 4 and lined grid 5 is respectively equipped with ring-type installing ring 2, and the exterior face of installing ring 2 connects the inwall of cylindrical shell 3; Or flase floor 14 middle parts of Longitudinal grille 4 and lined grid 5 are provided with through hole, and through hole runs through through connecting rod makes Longitudinal grille 4 or lined grid 5 flase floors 14 be integrally formed structure, and Longitudinal grille 4 or lined grid 5 outer edge surfaces are connected with the inwall of cylindrical shell 3; The Longitudinal grille 4 that is provided with installing ring 2 is the independent Longitudinal grille 4 and lined grid 5 with installing ring 2 that be provided with lined grid 5 and Longitudinal grille 4 that is integrally formed through connecting rod or lined grid 5; Or independent Longitudinal grille 4 or the lined grid 5 that are integrally formed through connecting rod that are provided with; Or the Longitudinal grille 4 of aforementioned dual mode, lined grid 5 are crisscross arranged; The connecting rod that is provided with on the flase floor 14 of wherein said Longitudinal grille 4 and lined grid 5 is at least two; In the cylindrical shell 3 of the Longitudinal grille 4 of bottom one deck or lined grid 5 bottoms, be provided with funnel 7 down; Lower ports place at following funnel 7 is provided with steam inlet duct 8, and said steam inlet duct outreaches the main steam header road.
The stripper of the described multilayer grid stack of embodiment of the present invention; Through inwall multilayer Longitudinal grille 4, lined grid 5 are set at cylindrical shell 3; Laminate because the top and bottom of said Longitudinal grille 4 and lined grid 5 are staggered, formed the layout of mesh shape, the present invention and the Longitudinal grille 4 and lined grid 5 layouts that interlock and laminate through top and bottom; Make the mutual support of the upper and lower of Longitudinal grille 4 and lined grid 5, catalyst also becomes latticed waterfall type and falls to distributing; The catalyst that falls in the catalyst hopper 1 that is provided with through cylindrical shell 3 upper ends during use causes to fall and break with lined grid 5 several waterfall shapes through the Longitudinal grille 4 of multilayer; The steam that rises is walked in the catalyst that waterfall shape causes to fall and break; And steam is vaporific by making in the process of gas port 11 risings that the catalyst that trickles forms downwards, has further strengthened the catalysis area; The interval of Longitudinal grille 4 and lined grid 5 is arranged so that constantly to change when catalyst falls and flows to; Form emptyly to fall, along the plate body of Longitudinal grille 4 and lined grid 5 slide, wherein slide the steam that rises in the gas port 11 in the process also auxiliary dispel catalyst; Just the catalyst hang time increases considerably with the upset number of times; The friction of corresponding steam and catalyst is carried out stripping and is also increased considerably; The present invention has realized the demand of the transit time of effective prolongation catalyst: this is the beneficial effect that number of plies increase is obtained of putting of Longitudinal grille 4 of the present invention and lined grid 5; It is eight layers that the number of plies of the present invention is provided with minimum, and catalyst flows number of turns also by obtaining lifting significantly, and the said catalyst circulation time prolongs relatively; For following fluid catalyst provides sufficient oil gas attaching space with the rising stripped vapor, carry oil gas thereby make stripped vapor fully contact also the stripping surface with catalyst.
Obtain digital proof in (petrochemical industry 4,000,000 tons of/year catalytic cracking in Qingyang, Gansu Province " are transformed the back ") device at my test place, regulating obviously from uniformity increases.
The present invention does not detail part and is prior art.
Claims (10)
1. the stripper of a multilayer grid stack comprises the stripper body and comprises one deck Longitudinal grille (4) layout that is used for dispersed catalyst; Be used to accept lined grid (5) layout of last layer catalyst; It is characterized in that: said one deck Longitudinal grille (4) layout that is used for dispersed catalyst comprises that mainly complex root is flase floor (14) tiltedly upright and that be provided with at interval; Each root flase floor (14) upper end of said complex root flase floor (14) is the lower end of corresponding another another the adjacent root flase floor (14) of angle downward vertically; Form the blind shaped structure of opening by complex root flase floor (14), said complex root flase floor (14) constitutes integrative-structure through syndeton; The said the same setting of lined grid (5) layout complex root flase floors (14) that is used to accept the last layer catalyst; The complex root flase floor (14) of integrative-structure and the complex root flase floor (14) of last layer integrative-structure be traverse, just the Longitudinal grille of last layer catalyst (4) layout and lined grid (5) layout of accepting the last layer catalyst pile up together back flase floor (14) be sphere of movements for the elephants shape structure catalyst intersect the grid layout; The inwall kiss of the outer edge surface of said Longitudinal grille (4), lined grid (5) and cylindrical shell (3) is joined and is fixed on the inwall of cylindrical shell (3); The Longitudinal grille (4) and the lined grid (5) that wherein are arranged in the cylindrical shell are at least eight layers respectively, and the Longitudinal grille of last layer (4) is pressed in down to form on the face of lined grid (5) upper side of one deck and laminates layer by layer.
2. the stripper of multilayer grid stack according to claim 1 is characterized in that: on each flase floor (14), be evenly distributed with gas port (11).
3. the stripper of multilayer grid stack according to claim 1 is characterized in that: each upper and lower end face that tiltedly founds flase floor (14) is respectively the last plane (12) of level and the lower plane (13) of level.
4. the stripper of multilayer grid stack according to claim 1; It is characterized in that: the syndeton that said complex root flase floor (14) passes through is that the outer rim of Longitudinal grille (4) and lined grid (5) is respectively equipped with ring-type installing ring (2), and the exterior face of installing ring (2) connects the inwall of cylindrical shell (3); Or the flase floor (14) of Longitudinal grille (4) and lined grid (5) middle part is provided with through hole; Through hole runs through through connecting rod makes Longitudinal grille (4) or lined grid (5) flase floors (14) be integrally formed structure, and Longitudinal grille (4) or lined grid (5) outer edge surface are connected with the inwall of cylindrical shell (3).
5. the stripper of multilayer grid stack according to claim 1 is characterized in that: the Longitudinal grille (4) and the lined grid (5) that are provided with installing ring (2) are independent Longitudinal grille (4) and the lined grid (5) with installing ring (2) that are provided with Longitudinal grille (4) that is integrally formed through connecting rod or lined grid (5); Or independent Longitudinal grille (4) or the lined grid (5) that are integrally formed through connecting rod that are provided with; Or the Longitudinal grille of aforementioned dual mode (4), lined grid (5) are crisscross arranged.
6. according to the stripper of claim 4 or 5 described multilayer grid stacks, it is characterized in that: the flase floor (14) of said Longitudinal grille (4) and lined grid (5) is gone up the connecting rod that is provided with and is at least two.
7. the stripper of multilayer grid stack according to claim 1 is characterized in that: be provided with catalyst hopper (1) in cylindrical shell (3) upper end.
8. according to the stripper of claim 4 or the stack of 5 described multilayer grids, it is characterized in that: in the cylindrical shell (3) of the Longitudinal grille (4) of bottom one deck or lined grid (5) bottom, be provided with funnel (7) down.
9. the stripper of multilayer grid stack according to claim 8 is characterized in that: the lower ports place at following funnel (7) is provided with steam inlet duct (8), and said steam inlet duct outreaches the main steam header road.
10. the stripper of multilayer grid stack according to claim 1; It is characterized in that: the lower end of cylindrical shell is fixedly connected with the open topped of catalyst hopper (9), and the lower ports of said catalyst hopper (9) is provided with the catalyst regeneration mechanism pipeline (10) of interchange catalyst regeneration sector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102245911A CN102755866A (en) | 2012-07-02 | 2012-07-02 | Stripper with multiple layers of stacked grids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102245911A CN102755866A (en) | 2012-07-02 | 2012-07-02 | Stripper with multiple layers of stacked grids |
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| Publication Number | Publication Date |
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| CN102755866A true CN102755866A (en) | 2012-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102245911A Pending CN102755866A (en) | 2012-07-02 | 2012-07-02 | Stripper with multiple layers of stacked grids |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2110560A (en) * | 1981-12-03 | 1983-06-22 | Shell Int Research | Apparatus for contacting particulate solid material with a fluid |
| JPS59177127A (en) * | 1983-03-25 | 1984-10-06 | Tanabe Seiyaku Co Ltd | Packing layer type reaction tower packed with soft packing material |
| US5716585A (en) * | 1994-12-29 | 1998-02-10 | Total Raffinage Distribution, S.A. | Process and apparatus for stripping fluidized solids and use thereof in a fluid cracking process |
| WO2000035575A1 (en) * | 1998-12-15 | 2000-06-22 | Koch-Glitsch, Inc. | Method and apparatus for contacting of gases and solids in fluidized beds |
| US20040101449A1 (en) * | 2002-11-25 | 2004-05-27 | Marchant Paul E. | Methods for reducing the formation of by-products in the production of recombinant polypepticles |
| EP1577368A1 (en) * | 2004-03-19 | 2005-09-21 | Uop Llc | Stripping apparatus and process |
| CN101569843A (en) * | 2009-05-29 | 2009-11-04 | 汤官俊 | Observe and reverse conical ring stripper capable of improving distribution area of catalyst |
| CN101569844A (en) * | 2009-05-29 | 2009-11-04 | 魏冶中 | Stripper capable of improving distribution area of catalyst |
| CN202741090U (en) * | 2012-07-02 | 2013-02-20 | 魏治中 | Multilayer grid-overlapped steam stripper |
-
2012
- 2012-07-02 CN CN2012102245911A patent/CN102755866A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2110560A (en) * | 1981-12-03 | 1983-06-22 | Shell Int Research | Apparatus for contacting particulate solid material with a fluid |
| JPS59177127A (en) * | 1983-03-25 | 1984-10-06 | Tanabe Seiyaku Co Ltd | Packing layer type reaction tower packed with soft packing material |
| US5716585A (en) * | 1994-12-29 | 1998-02-10 | Total Raffinage Distribution, S.A. | Process and apparatus for stripping fluidized solids and use thereof in a fluid cracking process |
| WO2000035575A1 (en) * | 1998-12-15 | 2000-06-22 | Koch-Glitsch, Inc. | Method and apparatus for contacting of gases and solids in fluidized beds |
| US20040101449A1 (en) * | 2002-11-25 | 2004-05-27 | Marchant Paul E. | Methods for reducing the formation of by-products in the production of recombinant polypepticles |
| EP1577368A1 (en) * | 2004-03-19 | 2005-09-21 | Uop Llc | Stripping apparatus and process |
| CN101569843A (en) * | 2009-05-29 | 2009-11-04 | 汤官俊 | Observe and reverse conical ring stripper capable of improving distribution area of catalyst |
| CN101569844A (en) * | 2009-05-29 | 2009-11-04 | 魏冶中 | Stripper capable of improving distribution area of catalyst |
| CN202741090U (en) * | 2012-07-02 | 2013-02-20 | 魏治中 | Multilayer grid-overlapped steam stripper |
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Application publication date: 20121031 |