CN201329281Y - Fixed bed ion exchange absorption device free of dismounting - Google Patents
Fixed bed ion exchange absorption device free of dismounting Download PDFInfo
- Publication number
- CN201329281Y CN201329281Y CNU2008201828315U CN200820182831U CN201329281Y CN 201329281 Y CN201329281 Y CN 201329281Y CN U2008201828315 U CNU2008201828315 U CN U2008201828315U CN 200820182831 U CN200820182831 U CN 200820182831U CN 201329281 Y CN201329281 Y CN 201329281Y
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- fixed bed
- ion exchange
- bed ion
- tower body
- tower
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- Expired - Lifetime
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Abstract
The utility model discloses a fixed bed ion exchange absorption device free of dismounting, which comprises a liquid inlet main pipe, a column body, a liquid distributing cap and liquid outlet water seepage pipes. The column body is a cylinder body with an upper sealed head and a lower indent bottom, the liquid inlet main pipe is arranged on the column body, the liquid distributing cap in reversed funnel shape is connected to the lower side of the liquid inlet main pipe, the column body is full of ion exchange resin, a filter layer is arranged on the bottom portion of the column body, six pairs of liquid outlet water seepage pipes are laid under the filter layer, the liquid outlet water seepage pipes comprise three layers, the outmost layer is punctured glass fiber reinforced plastic supporting pipes, the middle layer is a double-layer stainless steel filter screen, and the innermost is punctured plastic pipes. The utility model overcomes shortages of existing fixed bed ion exchange devices and designs a fixed bed ion exchange device which improves water outlet components and has relatively wide operating range of column pressure. The fixed bed ion exchange absorption device free of dismounting increases intensity of screen mesh for filtering resin, increases operable column pressure and widens flow range of the ion exchange operation.
Description
Technical field
The utility model relates to a kind of fixed bed ion exchange equipment, and being specially at the bottom of a kind of tower is the design of indent formula, and the bottom is provided with the fixed bed ion exchange equipment of the detachable filtration silk screen of inner lining plastic tube.
Background technology
Fixed bed ion exchange equipment mainly is divided into two kinds, and a kind of is feed liquor adsorption tower on the open type, and this is traditional fixed bed unit, adopts multitower series connection absorption, carries out the solution transfer with pump or in conjunction with the natural discrepancy in elevation between the tower.Another kind is the closed adsorption tower, adopts multitower series connection absorption, with the pipeline series connection, does not need to shift solution with pump between the tower.
The form of closed adsorption tower mainly contains two kinds, and the most frequently used is traditional, and the design of the double-seal head up and down that adopts usually connects or integral solder with flange between last low head and the tower body; Another kind of novel adsorption tower has adopted flat design, and this adsorption tower top adopts end socket design, bottom to adopt flat design, adopts integral solder with tower body at the bottom of top end socket and the lower flat.Traditional adsorption tower bottom bulkhead easily have can not emptying solution residual, and bottom bulkhead can not add ion exchange resin usually, causing bottom bulkhead is the space of waste; Though and flat novel adsorption tower has overcome the shortcoming that traditional adsorption tower bottom bulkhead exists, but flat in actual use design designs easy deformation than end socket, make its operational tower press scope too little, the practical operation tower is pressed can not be greater than 0.20MPa, cause the exchange operations range of flow to reduce, make the adsorption tower scope of application of flat design be restricted.
The present ADSORPTION IN A FIXED BED tower that uses, the cat head turnover mouth of pipe is directly opened usually on the cat head end socket, absorption need on the cat head absorption stoste, leacheate, lean solution, secondary lean solution, a plurality of imports of compressed air and a recoil outlet, air discharge ports, various instrument mouth, manhole etc. have about 10 altogether surplus mouthful, like this end socket need open ten surplus a mouth of pipe.In end socket upper shed too many is the bearing capacity that has reduced end socket integral body, the 2nd, and distribute the also corresponding increase of area of feed liquor distributor in the too many needed tower of import.
Go out water assembly in the tower of present normally used ADSORPTION IN A FIXED BED tower and adopt screen cloth (the normally form of woven wire tube) more, but thereby the easy compressive deformation of screen cloth causes resin to be revealed when the resin loading is bigger, need strengthen the form that goes out water assembly when therefore using.
Summary of the invention
The purpose of this utility model is: provide a kind of operational tower to press that scope is big, fixed bed ion-exchange adsorption plant is dismantled in big the exempting from of branch loading.
Realize the technical scheme of the utility model purpose: a kind ofly exempt to dismantle fixed bed ion-exchange adsorption plant, comprise feed liquor house steward, tower body, liquid distribution cap and fluid soakaway trench; Tower body is the cylinder that adopts upper cover, down interior concave bottom; Be provided with a feed liquor house steward above the tower body, feed liquor house steward's below is connecting one and is being down funnel shaped liquid distribution cap, is full of ion exchange resin in the tower body, and the bottom of tower body is provided with filter course, is covered with six pairs of fluid soakaway trench below the filter course.
Above-mentioned fluid soakaway trench is formed by three layers, outermost layer is the fiberglass stay pipe of punching, and its aperture is less than the gravel size of filter course, and the intermediate layer is that double-layer stainless steel filters silk screen, its aperture is less than the particle diameter of polymeric adsorbent, and innermost layer is the interior support plastic tube of punching.
Only establish a feed tube on the above-mentioned tower body.
The beneficial effects of the utility model: (1) is because tower body is the cylinder that adopts upper cover, down interior concave bottom (like the wine bottom type), neither can as the end socket bottom design, there be solution residual in the end socket bottom, also overcome operational tower and pressed the too little shortcoming of scope, exercisable tower pressure scope increases makes the corresponding increase of exchange operations range of flow.(2) the fluid soakaway trench at the bottom of the tower is formed by three layers, and outermost layer is the fiberglass stay pipe of punching, and its aperture should be less than the gravel size of filter course, has avoided the sandstone of filter course to enter and has damaged the filtration silk screen in the fluid soakaway trench by pressure; The intermediate layer is that double-layer stainless steel filters silk screen, and its aperture has avoided polymeric adsorbent to reveal at the bottom of tower less than the polymeric adsorbent particle size; Innermost layer supports the filtration silk screen for the plastic tube of punching, and the resin of having avoided filter course to ooze out flattens silk screen and causes the silk screen breakage.(3) this design only is provided with an inlet tube-feed liquor house steward at the top of tower body, has simplified equipment, has improved the bearing capacity of end socket integral body simultaneously.
Description of drawings
Fig. 1 a kind of fixed bed ion-exchange adsorption plant sectional side view of exempting to dismantle of the present utility model.
Fig. 2 a kind of fixed bed ion-exchange adsorption plant vertical view of exempting to dismantle of the present utility model.
Fig. 3 a kind of filtration silk screen inner lining plastic tube schematic diagram of exempting to dismantle fixed bed ion-exchange adsorption plant of the present utility model.
Fig. 4 a kind of three layers of combining structure generalized section exempting to dismantle the fluid soakaway trench of fixed bed ion-exchange adsorption plant of the present utility model.
Among the figure: 1. support plastic tube 15. in 2. standby mouthfuls 3. manholes of feed liquor house steward, 4. visor mouths, 5. tower bodies, 6. manholes, 7. fluid soakaway trench, 8. fiberglass stay pipes, 9. visor mouths, 10. instrument mouths, 11. instrument mouths, 12. visor mouths, the 13. liquid distribution caps 14. and filter silk screen 16. screen pack installing rings.
The specific embodiment
Describe a kind of fixed bed ion-exchange adsorption plant of exempting to dismantle of the present utility model in detail below in conjunction with accompanying drawing.
As illustrated in fig. 1 and 2, a kind ofly exempt to dismantle fixed bed ion-exchange adsorption plant and comprise tower body 5, feed liquor house steward 1, filter course, visor mouth 4,9 and 12, instrument mouth 10 and 11, manhole 3 and 6, standby mouthful 2, liquid distribution cap 13 and fluid soakaway trench 7.Tower body 5 is a cylindrical tube structure, and ellipsoidal head is adopted in the top of tower body 5, and likeness in form " wine bottom type " interior concave bottom is adopted in the bottom.So neither can have solution residual in end socket bottom as the end socket bottom design, also overcome operational tower and pressed the too little shortcoming of scope, exercisable tower pressure scope increases makes the corresponding increase of exchange operations range of flow.Bottom at tower body 5 is provided with filter course, filter course is laid a row totally six pairs of fluid soakaway trench 7 down, fluid soakaway trench 7 is formed by three layers, outermost layer is the fiberglass stay pipe 8 of punching, its aperture is less than the gravel size of filter course, and its purpose is to prevent that the sandstone of filter course from entering to damage by pressure in the fluid soakaway trench 7 filters silk screen 15; The intermediate layer is that double-layer stainless steel filters silk screen 15, and its aperture is less than the polymeric adsorbent particle size, and its purpose is to prevent that polymeric adsorbent from revealing at the bottom of tower; Innermost layer is the interior support plastic tube 14 of punching, its purpose is to support filtration silk screen 15, prevent from silk screen 15 flattenings to be caused the silk screen breakage from the resin that filter course oozes out, a screen pack installing ring 16 is set in the exit of fluid soakaway trench 7, the fiberglass bulge loop connection that connects the outlet place by screw is tightened, the fixing silk screen 15 that filters.For simplified structure, a feed liquor house steward 1 all feed liquids only are set on the upper cover of tower body 5 all to enter from this pipe, the lower end that feed liquor house steward 1 is in tower body 5 inside is welded with one and becomes to funnelform liquid distribution cap 3 to be used to the liquid that distributes, and liquid is dispersed under the gravity effect on the resin in the tower body 5.Around the top of tower body 5 and tower body 5, also be provided with visor mouth 12,4 and 9, be used to observe liquid and resin distribution situation.In order to control and measure the process conditions when the practical operation, on the upper cover of tower body 5, be provided with two instrument mouths 10 and 11 and standby mouthful 2.Establish a manhole 3 and 6 respectively in the upper and lower of tower body 5 respectively in order to overhaul conveniently.
When actual factory uses, the improved fixed bed ion-exchange adsorption plant of a general cover is made up of many (4~8) fixed bed ion exchange equipments, generally take the mode of operation of multitower series connection single tower drip washing of absorption and multitower series connection absorption multitower series connection drip washing, can also reserve 1 to 2 tower in addition as stand-by still and ion exchange resin conversion tower.Introduce a kind of better simply series connection, single tower drip washing mode of operation below.
The three tower cascade connected absorption of adopting, the mode of operation of single tower drip washing, shared 4 adsorption towers of a cover system, adsorption time and drip washing time mate fully, realize the automatic control continued operation, and the resin lessivation promptly is a transformation process, and operating efficiency obtains maximization.Adsorption tower monomer structure schematic diagram as shown in Figure 1.During three tower cascade connected adsorption operations, absorption stoste enters from the last feed liquor house steward's 1 of 1# tower adsorption liquid import, earlier through liquid distribution cap 13, fully contact with resin bed then, the ion of absorption stoste is by resin adsorption, adsorption tail liquid by behind the filter course from six pairs of fluid soakaway trench 7 fluids of 1# tower bottom, the feed liquor house steward 1 who enters the 2# tower by the tandem tube between the 1#-2# tower is adsorbed by liquid distribution cap 13 distribution liquid then, enters the absorption of 3# tower after fluid soakaway trench 7 is discharged by tandem tube between the 2#-3# tower then.
During the drip washing of list tower, eluent enters resin bed drip washing from cat head and obtains the secondary lean solution, and secondary lean solution drip washing resin bed again obtains lean solution one time, and one time the last drip washing resin bed of lean solution obtains qualified leacheate.Wherein secondary lean solution, a lean solution adopt the transfer pond to preserve, and guarantee carrying out continuously of drip washing operation.
Through the test confirmation, can steady in a long-term move under the operating condition that this equipment adsorption operations on-line velocity is 15m/h, operating pressure moves down in the scope of 0~0.45MPa and occurs unusually.But screen cloth cleans in operation regular dismounting drain pipe at intermittence, has not occurred blocking the situation of drain pipe and resin leakage in the running.
Claims (3)
1. exempt to dismantle fixed bed ion-exchange adsorption plant for one kind, comprise feed liquor house steward (1), tower body (5), liquid distribution cap (13), fluid soakaway trench (7), it is characterized in that: tower body (5) is the cylinder that adopts upper cover, down interior concave bottom; Be provided with a feed liquor house steward (1) above the tower body (5), feed liquor house steward's (1) below is connecting one and is being down funnel shaped liquid distribution cap (13), tower body is full of ion exchange resin in (5), and the bottom of tower body (5) is provided with filter course, is covered with six pairs of fluid soakaway trench (7) below the filter course.
2. a kind of fixed bed ion-exchange adsorption plant of exempting to dismantle according to claim 1, it is characterized in that, above-mentioned fluid soakaway trench (7) is formed by three layers, outermost layer is the fiberglass stay pipe (8) of punching, its aperture is less than the gravel size of filter course, the intermediate layer is that double-layer stainless steel filters silk screen, and its aperture is less than the particle diameter of polymeric adsorbent, and innermost layer is the interior support plastic tube (14) of punching.
3. a kind of fixed bed ion-exchange adsorption plant of exempting to dismantle according to claim 1 is characterized in that, only establishes a feed tube-feed liquor house steward (1) on the tower body (5).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CNU2008201828315U CN201329281Y (en) | 2008-12-24 | 2008-12-24 | Fixed bed ion exchange absorption device free of dismounting |
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CNU2008201828315U CN201329281Y (en) | 2008-12-24 | 2008-12-24 | Fixed bed ion exchange absorption device free of dismounting |
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CN201329281Y true CN201329281Y (en) | 2009-10-21 |
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CNU2008201828315U Expired - Lifetime CN201329281Y (en) | 2008-12-24 | 2008-12-24 | Fixed bed ion exchange absorption device free of dismounting |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105803230A (en) * | 2014-12-30 | 2016-07-27 | 新疆中核天山铀业有限公司 | Eluting transition tower |
CN107460314A (en) * | 2016-06-02 | 2017-12-12 | 中核第四研究设计工程有限公司 | Packed moving bed ion exchange eluting column |
CN108686719A (en) * | 2018-06-28 | 2018-10-23 | 中核第四研究设计工程有限公司 | Large-scale exchange column of fixed bed |
CN115487541A (en) * | 2022-10-20 | 2022-12-20 | 中核第四研究设计工程有限公司 | Large-diameter compact fixed bed adsorption tower and flow field regulation and control method thereof |
-
2008
- 2008-12-24 CN CNU2008201828315U patent/CN201329281Y/en not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105803230A (en) * | 2014-12-30 | 2016-07-27 | 新疆中核天山铀业有限公司 | Eluting transition tower |
CN107460314A (en) * | 2016-06-02 | 2017-12-12 | 中核第四研究设计工程有限公司 | Packed moving bed ion exchange eluting column |
CN108686719A (en) * | 2018-06-28 | 2018-10-23 | 中核第四研究设计工程有限公司 | Large-scale exchange column of fixed bed |
CN115487541A (en) * | 2022-10-20 | 2022-12-20 | 中核第四研究设计工程有限公司 | Large-diameter compact fixed bed adsorption tower and flow field regulation and control method thereof |
CN115487541B (en) * | 2022-10-20 | 2023-12-26 | 中核第四研究设计工程有限公司 | Large-diameter dense fixed bed adsorption tower and flow field regulating and controlling method thereof |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
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Granted publication date: 20091021 |
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CX01 | Expiry of patent term |