CN104482721A - Two-tier fluidized bed - Google Patents
Two-tier fluidized bed Download PDFInfo
- Publication number
- CN104482721A CN104482721A CN201410717273.8A CN201410717273A CN104482721A CN 104482721 A CN104482721 A CN 104482721A CN 201410717273 A CN201410717273 A CN 201410717273A CN 104482721 A CN104482721 A CN 104482721A
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- air inlet
- distribution grid
- blast cap
- stage fluidized
- upper body
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Abstract
The invention discloses a two-tier fluidized bed comprising an upper part, a lower part, an air inlet and an air outlet. A distributing plate for holding material is transversely arranged in each of the upper part and the lower part. The air inlet is disposed on the sidewall of the lower part below the distributing plates. The air outlet is disposed above the upper part. A vortex guide plate is disposed at the air inlet. Each distributing plate is provided with air holes which are staggered. The vortex guide plate allows hot air, entering the bed, to be diverted along the vortex guide plate, and thus, the problem of uneven heating caused by direct blow of the hot air is avoided, heat utilization rate of the bed is increased and drying efficiency is good; the bed is simple in structure, convenient to mount, easy to maintain and cost saving.
Description
Technical field
The invention belongs to technical field of chemical, especially relate to a kind of two-stage fluidized.
Background technology
Fluid bed reacts setting efficiently as one, is mainly used to carry out gas-solid phase reaction and liquid and solid phase reaction, has been widely used in the fields such as chemical industry, pharmacy, environmental protection.Fluid bed is when utilizing air-flow to act between the critical speed and carrying velocity of dried material particle swarm, makes particle form the motion of fluidisation shape, thus the mass transfer of both reinforcements and heat transfer.Production practices show, fluid bed is used as reacting appliance and has many good qualities, such as: axial back mixing ability is strong; Micromixing degree is high; When complete mixing flow is beneficial to reaction, conversion ratio can be improved; Can obtain uniform Temperature Distribution under the condition without additional measure, because fluidization has the feature of mixing and heat transfer rapidly, many processes being difficult to carry out in General reactions device can be resolved by fluidization technology; Heat is introduced convenient, shifts out easily; Temperature controls convenient; Catalyst be easy to change and liquid distribution degree of irregularity minimum etc.
Two-stage fluidized of the prior art, when hot blast enters into fluid bed inside by air inlet, near air inlet owing to being subject to directly blowing of hot blast, therefore wind-force effect is stronger, the wind-force effect be then subject to from the position away from air inlet is more weak, heating inequality after this just causes hot blast to enter fluid bed casing, makes fluid bed heat utilization rate low, affects drying efficiency.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides after one can make hot blast casing and be evenly distributed, heat utilization rate is high, the two-stage fluidized that drying effect is good.
In order to realize foregoing invention object, technical scheme of the present invention is as follows:
A kind of two-stage fluidized, it comprises upper body and lower body, air inlet, air outlet, is all laterally provided with the distribution grid for holding material in described upper body and lower body; On sidewall below the distribution grid that described air inlet is arranged at lower body; Described air outlet is arranged at the top of upper body, and described air inlet is provided with vortex flow deflector; Described distribution grid is equipped with passage, and passage is staggered.
Above-described upper body and the salable docking of lower body, make this fluid bed achieve the multifunction of equipment.
Above-described vortex flow deflector is fan-shaped being obliquely installed.
Passage on described distribution grid is provided with breather pipe; Described breather pipe is provided with blast cap.
Above-described blast cap is set on breather pipe, and blast cap is the uncovered cylindrical tube in top seal, bottom; The middle and lower part of blast cap is provided with the exhaust vent be uniformly distributed along the circumference.
Above-described exhaust vent is downward-sloping from inside to outside, and the grain flow that the air-flow sprayed is caused can not directly strike other blast cap, improves the flow field condition in blast cap district.
Above-described upper body outer wall is provided with the support handle for passing, and is convenient to the use technology to this equipment.
During use, double-deck distribution grid all holds material to be dried, cover upper body, air inlet bottom lower body passes into hot blast, the effect of vortex flow deflector is subject to after hot blast enters air inlet, thus change hot blast direction along the direction of vortex flow deflector, and then become spiral air-flow, enter fluid bed inside and form dispersion shape, hot blast sprays from the exhaust vent blast cap after the breather pipe on distribution grid, material to be dried, under hot wind action, is suspended in fluid bed inside and forms fluidization, thus carry out drying.
Relative to prior art, the present invention has the following advantages:
1, the vortex flow deflector in the present invention makes the direction of the hot blast entering fluid bed inside change along the direction of vortex flow deflector, thus avoids the phenomenon generation that hot blast directly blows the heating inequality caused, and improve fluid bed heat utilization rate, drying efficiency is good.
2, the present invention is equipped with breather pipe and has the blast cap of exhaust vent on bilevel distribution grid, and uniformity of temperature profile in lower body on fluid bed, effectively prevents material phenomenon; Hot blast sprays from the exhaust vent blast cap after breather pipe, instead of directly from distribution grid upper vent hole or directly ejection around, breather pipe serves cushioning effect, reduces the pressure around passage simultaneously, decrease the degree of wear of distribution grid, extend the service life of distribution grid.
3, the downward-sloping certain angle of the exhaust vent on blast cap of the present invention is arranged, the grain flow that the air-flow of its ejection causes can not directly strike other blast cap, improve the flow field condition in blast cap district, the dead band on air distribution plate is avoided to produce, improve the fluidization quality of material to be dried, prevent lime-ash to pour in breather pipe simultaneously, reduce wearing and tearing, significant prolongation service life of blast cap, reduce costs.
4, structure of the present invention is simple, easy for installation, for ease of maintenaince, cost-saving.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is partial enlarged drawing of the present invention.
Fig. 3 is vortex flow deflector structure schematic diagram of the present invention.
Accompanying drawing identifies:
1-upper body, 2-distribution grid, 3-support handle, 4-lower body, 5-blast cap, 6-breather pipe, 7-vortex flow deflector, 8-air inlet, 9-air outlet, 10-exhaust vent.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Embodiment 1:
A kind of two-stage fluidized, it comprises upper body 1 and lower body 4, air inlet 8, air outlet 9, is all laterally provided with the distribution grid 2 for holding material in upper body 1 and lower body 4.On sidewall below the distribution grid 2 that air inlet 8 is arranged at lower body 4; Air outlet 9 is arranged at the top of upper body 1.At air inlet 8, place is provided with vortex flow deflector 7, and described vortex flow deflector 7 is obliquely installed for fan-shaped, and the direction of the hot blast entering fluid bed inside is changed along the direction of vortex flow deflector 7, thus avoids the phenomenon generation that hot blast directly blows the heating inequality caused.Described distribution grid 2 is equipped with passage, and passage is staggered.Passage on distribution grid 2 is provided with breather pipe 6; Described breather pipe 6 is provided with blast cap 5.Blast cap 5 is set on breather pipe 6, and blast cap 5 is the uncovered cylindrical tube in top seal, bottom.The middle and lower part of blast cap 5 is provided with the exhaust vent 10 be uniformly distributed along the circumference, and exhaust vent 10 is downward-sloping from inside to outside.Hot blast sprays from the exhaust vent 10 blast cap 5 after breather pipe, instead of directly from distribution grid upper vent hole or directly ejection around, breather pipe 6 serves cushioning effect simultaneously, reduce the pressure around passage, decrease the degree of wear of distribution grid 2, extend the service life of distribution grid 2.
During use, double-deck distribution grid 2 all holds material to be dried, cover upper body 1, air inlet 8 bottom lower body 4 passes into hot blast, the effect of vortex flow deflector 7 is subject to after hot blast enters air inlet 8, thus change hot blast direction along the direction of vortex flow deflector 7, and then become spiral air-flow, enter fluid bed inside and form dispersion shape, hot blast sprays from the exhaust vent 10 blast cap 5 after the breather pipe 6 on distribution grid 2, material to be dried, under hot wind action, is suspended in fluid bed inside and forms fluidization, thus carry out drying.
Embodiment 2:
A kind of two-stage fluidized, it comprises upper body 1 and lower body 4, air inlet 8, air outlet 9, is all laterally provided with the distribution grid 2 for holding material in upper body 1 and lower body 4.On sidewall below the distribution grid 2 that air inlet 8 is arranged at lower body 4; Air outlet 9 is arranged at the top of upper body 1.Described upper body 1 and the salable docking of lower body 4, upper body 1 outer wall is provided with the support handle 3 for passing, and makes this fluid bed achieve the multifunction of equipment.At air inlet 8, place is provided with vortex flow deflector 7, and described vortex flow deflector 7 is obliquely installed for fan-shaped, and the direction of the hot blast entering fluid bed inside is changed along the direction of vortex flow deflector 7, thus avoids the phenomenon generation that hot blast directly blows the heating inequality caused.Described distribution grid 2 is equipped with passage, and passage is staggered.Passage on distribution grid 2 is provided with breather pipe 6; Described breather pipe 6 is provided with blast cap 5.Blast cap 5 is set on breather pipe 6, and blast cap 5 is the uncovered cylindrical tube in top seal, bottom.The middle and lower part of blast cap 5 is provided with the exhaust vent 10 be uniformly distributed along the circumference, and exhaust vent 10 is downward-sloping from inside to outside.Hot blast sprays from the exhaust vent 10 blast cap 5 after breather pipe 6, instead of directly from distribution grid 2 upper vent hole or directly ejection around, breather pipe 6 serves cushioning effect simultaneously, reduce the pressure around passage, decrease the degree of wear of distribution grid 2, extend the service life of distribution grid 2.
The operation principle of this embodiment is identical with embodiment 1.
Claims (7)
1. a two-stage fluidized, it comprises upper body (1) and lower body (4), air inlet (8), air outlet (9), is all laterally provided with the distribution grid (2) for holding material in described upper body (1) and lower body (4); Described air inlet (8) is arranged on the sidewall of distribution grid (2) below of lower body (4); Described air outlet (9) is arranged at the top of upper body (1), it is characterized in that: described air inlet (8) place is provided with vortex flow deflector (7); Described distribution grid (2) is equipped with passage, and passage is staggered.
2. a kind of two-stage fluidized according to claim 1, is characterized in that: described upper body (1) and lower body (4) salable docking.
3. a kind of two-stage fluidized according to claim 1, is characterized in that: described vortex flow deflector (7) is obliquely installed for fan-shaped.
4., according to the arbitrary described a kind of two-stage fluidized of claim 1-3, it is characterized in that: the passage on described distribution grid (2) is provided with breather pipe (6); Described breather pipe (6) is provided with blast cap (5).
5. a kind of two-stage fluidized according to claim 4, is characterized in that: described blast cap (5) is set on breather pipe (6), the cylindrical tube that blast cap (5) is top seal, bottom is uncovered; The middle and lower part of blast cap (5) is provided with the exhaust vent (10) be uniformly distributed along the circumference.
6. a kind of two-stage fluidized according to claim 5, is characterized in that: described exhaust vent (10) is downward-sloping from inside to outside.
7. a kind of two-stage fluidized according to claim 2, is characterized in that: described upper body (1) outer wall is provided with the support handle (3) for passing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410717273.8A CN104482721A (en) | 2014-11-30 | 2014-11-30 | Two-tier fluidized bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410717273.8A CN104482721A (en) | 2014-11-30 | 2014-11-30 | Two-tier fluidized bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104482721A true CN104482721A (en) | 2015-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410717273.8A Pending CN104482721A (en) | 2014-11-30 | 2014-11-30 | Two-tier fluidized bed |
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| CN (1) | CN104482721A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105749819A (en) * | 2016-04-07 | 2016-07-13 | 北京清新环境技术股份有限公司 | Novel lower-pressure-drop distribution plate applicable to multilayered bed |
| CN106152705A (en) * | 2016-07-05 | 2016-11-23 | 江苏大学 | A kind of energy-efficient two-stage fluidized drying device |
| CN109373740A (en) * | 2018-12-05 | 2019-02-22 | 刘子鸣 | A kind of horn shape box of grain drying tower |
| CN113028828A (en) * | 2021-03-18 | 2021-06-25 | 阜阳市辉堂新型建材有限公司 | Energy-saving tunnel kiln for producing coal gangue baked bricks |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3902462A (en) * | 1974-05-28 | 1975-09-02 | Foster Wheeler Energy Corp | System and method for generating heat utilizing fluidized beds of different particle size |
| CN2789592Y (en) * | 2005-02-05 | 2006-06-21 | 太原锅炉集团有限公司 | Easy-to-change jacketed bell type nozzle button |
| CN201168597Y (en) * | 2008-03-18 | 2008-12-24 | 河南未来铝业（集团）有限公司 | Fluidized bed cribellum and double-layer fluidized bed |
| CN202709640U (en) * | 2012-06-21 | 2013-01-30 | 天津市宝月钢制品有限公司 | Vibrated fluidized bed |
| CN103868327A (en) * | 2014-01-01 | 2014-06-18 | 杨胜妹 | Multilayer fluidized bed |
-
2014
- 2014-11-30 CN CN201410717273.8A patent/CN104482721A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3902462A (en) * | 1974-05-28 | 1975-09-02 | Foster Wheeler Energy Corp | System and method for generating heat utilizing fluidized beds of different particle size |
| CN2789592Y (en) * | 2005-02-05 | 2006-06-21 | 太原锅炉集团有限公司 | Easy-to-change jacketed bell type nozzle button |
| CN201168597Y (en) * | 2008-03-18 | 2008-12-24 | 河南未来铝业（集团）有限公司 | Fluidized bed cribellum and double-layer fluidized bed |
| CN202709640U (en) * | 2012-06-21 | 2013-01-30 | 天津市宝月钢制品有限公司 | Vibrated fluidized bed |
| CN103868327A (en) * | 2014-01-01 | 2014-06-18 | 杨胜妹 | Multilayer fluidized bed |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105749819A (en) * | 2016-04-07 | 2016-07-13 | 北京清新环境技术股份有限公司 | Novel lower-pressure-drop distribution plate applicable to multilayered bed |
| CN106152705A (en) * | 2016-07-05 | 2016-11-23 | 江苏大学 | A kind of energy-efficient two-stage fluidized drying device |
| CN109373740A (en) * | 2018-12-05 | 2019-02-22 | 刘子鸣 | A kind of horn shape box of grain drying tower |
| CN109373740B (en) * | 2018-12-05 | 2023-12-29 | 刘子鸣 | Corner box of grain drying tower |
| CN113028828A (en) * | 2021-03-18 | 2021-06-25 | 阜阳市辉堂新型建材有限公司 | Energy-saving tunnel kiln for producing coal gangue baked bricks |
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Application publication date: 20150401 |