CN1583236A - Cap hood for fluid bed reactor - Google Patents
Cap hood for fluid bed reactor Download PDFInfo
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- CN1583236A CN1583236A CN 200410042795 CN200410042795A CN1583236A CN 1583236 A CN1583236 A CN 1583236A CN 200410042795 CN200410042795 CN 200410042795 CN 200410042795 A CN200410042795 A CN 200410042795A CN 1583236 A CN1583236 A CN 1583236A
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- cap
- air main
- air
- spout
- blast cap
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- 239000012530 fluid Substances 0.000 title description 4
- 239000002245 particle Substances 0.000 abstract description 4
- 239000007787 solid Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 12
- 238000005243 fluidization Methods 0.000 description 10
- 238000009826 distribution Methods 0.000 description 7
- 241000208125 Nicotiana Species 0.000 description 4
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 206010008190 Cerebrovascular accident Diseases 0.000 description 1
- 208000006011 Stroke Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
A cover-type wind cowl for fluidized-bed reactor is composed of a wind trunk with at least two nozzles, a cowl sleeving outside said wind trunk to form a wind outlet channel, and a bottom basin for installing the refractory on air distributing plate and forming a wind outlet with reasonable shape. It can make the fluiding medium and solid particles mixed well, resulting in better fluidized state.
Description
Technical field
The invention belongs to the air-distribution device that uses in the fluidized-bed reactor, particularly a kind of structural design of air-distribution device Apoplexy cap.Be mainly used in fluid-bed combustion boiler, also can be used for the fluidized-bed reactor in chemical industry, the metallurgy.
Background technology:
Air-distribution device is one of critical component of fluidized-bed reactor, and its performance directly influences flowing in the fluidization quality of fluid bed and the fluid bed, reaction, mass transfer and heat transfer, and then influences the performance of whole fluidized-bed reactor.Blast cap then is the critical piece of air-distribution device, its effect is that fluidizing agent is carried out second diffluence and guiding, make it enter fluid bed with enough speed, and produce the air cushion layer of strong disturbance on blast cap top, make the solid particle energy good mixing in fluidizing agent and the bed, to set up good fluidized state.Therefore, the design of the selection of blast cap form, critical size and layout thereof will directly influence the resistance of fluidization quality and air distribution plate.
Polytype blast cap has been arranged at present, as column blast cap, mushroom-shaped blast cap, tobacco pipe shape blast cap, bell shape blast cap, pigtail blast cap etc.The resistance of column blast cap is less, and is easy to manufacture, but fluidization quality is not ideal enough.Mushroom-shaped blast cap fluidization quality is better, and manufacturing cost is lower, but designs improperly, can produce bigger wearing and tearing; In addition, the drag characteristic of this class blast cap is subjected to the aperture Influences on Wind Velocity relatively responsive, causes under the underload resistance on the low side, and the bed material leaks serious, and the long-time running rear jet stops up the cleaning difficulty, and when the bed storage was big, layered fluidized phenomenon was obvious.All there are the not smooth problem of row's bed material in column blast cap and mushroom-shaped blast cap, tobacco pipe shape blast cap has appearred for this reason, tobacco pipe shape blast cap is the wind cap that is similar to the tobacco pipe shape, has well solved the not smooth problem of row's bed material, and the horizontal mixing intensity of material in the bed is increased.For guaranteeing fluidization quality, adopt big area of injection orifice, resistance is less, bring bed material leakage problem down, and wearing and tearing does not solve thereupon.The processing of bell shape blast cap is simple, and fluidization quality is better, but still not thoroughly solution of wear problem, the bed material at bottom side outlet place produces wearing and tearing when mainly being airflow fluctuation.The result of use of pigtail blast cap is better, and bed material problem is not leaked in both not wearing and tearing again, after its subject matter is the operation some time, in the discharge pipe, occurs the problem that part is blocked by the bed material inevitably vertically upward, and cleaning is trouble very.
Summary of the invention
At the deficiencies in the prior art and defective, purpose of the present invention and task are to provide a kind of lid formula blast cap for fluidized-bed reactor, this blast cap is not only made simply, have bigger resistance scope of design, and reduce the dependence of blast cap resistance, under underload, keep higher blast cap resistance the air-flow velocity by blast cap, further improve fluidization quality, prevent that effectively the bed material from leaking down, overcome row's bed material and freely do not reach problems such as wearing and tearing.
Purpose of the present invention and task are achieved by the following technical solution:
A kind of lid formula blast cap that is used for fluidized-bed reactor contains air main and cap, is provided with two spouts on air main at least, and it is characterized in that: described cap is enclosed within the air main outside, and cap inwall and air main outer wall form the air-out passage; Be provided with end basin in the bottom of air main and cap, in the end basin along the angle β of inclined-plane and air main center line between 0 °～60 °, the angle α of described spout center line and air main center line is between 30 °～75 °; Described cap is connected with air main top or is supported on the end basin.
In order further to improve fluidization quality, be convenient to the layout of this blast cap on air distribution plate, the spout on the air main be arranged on the same level height or layered arrangement on differing heights; Spout on same level height adopts to be arranged symmetrically or arranges arbitrarily.The cap top is hemispherical or covers abrasion-proof structure that described abrasion-proof structure perhaps increases annular fin at the cap outer wall for to use Antiwear casing above cap.
The present invention compared with prior art has the following advantages and beneficial effect: it is less that the blast cap resistance is influenced by load, and the blast cap resistance still can be kept higherly under the underload, overcomes the leakage bed material problem under the underload.Because this blast cap has adopted lid formula cap, multi-faceted spout is arranged, can be designed to the spout axis of different angles and can be designed in the end basin of different angles along gradient, the common spout that the is fit to amount of flow of giving vent to anger that forms, can make air and solid particle better mixing, thereby form good fluidized state, make it not only can obviously improve fluidization quality, and can prevent wearing and tearing effectively, overcome deslagging and freely do not expect problems such as leakage down with bed, make simply simultaneously, have bigger resistance scope of design.
Description of drawings
Fig. 1 is the structural representation of lid formula blast cap provided by the invention.
Fig. 2 is the interior distinguished and admirable to schematic diagram of lid formula blast cap provided by the invention.
Fig. 3 is the structural representation that has the lid formula blast cap of abrasion-proof structure provided by the invention.
Specific implementation
Below in conjunction with description of drawings concrete structure of the present invention and preferred forms: the lid formula blast cap that is used for fluidized-bed reactor provided by the invention mainly is made up of air main 1, cap 2 and end basin 3.The top of air main is thicker, is connected with cap by bayonet socket or screw thread; The air main bottom is thinner, and its outer tube wall and cap inwall form the air-out passage jointly.The number of air main top spout 4 can require two or more to be set, for example 3,4 etc. according to different cloth wind; Can arrange by individual layer, but also multilayer is arranged; Spout on same level height can evenly be arranged or arrange arbitrarily.Angle α between the center line of each spout center line and air main is between 30 °～75 °.End basin 3 is in order to assist to install the refractory material 6 on the air distribution plate, simultaneously and cap 2 common form Reasonable Shape air outlet, basin interior angle β along inclined-plane and air main center line in the end is between 0 °～60 °.Because spout 4 multi-level multi-faceted layouts can make fluidizing agent and solid particle better mixing, thereby form good fluidized state, improve fluidization quality effectively, guarantee that simultaneously deslagging is smooth and easy.The aperture area of air main top spout 4 is changeable, should decide according to the resistance scope of design.Cap links to each other with air main by bayonet socket or screw thread, and also useable holder 5 is supported on the end basin, so that the bed material of cleaning deposition.The cap top is that hemispherical maybe can cover abrasion-proof structure, as shown in Figure 3.Abrasion-proof structure is to use Antiwear casing 7 above cap, perhaps increases annular fin 8 at the cap outer wall.Because fluidized wind does not directly wash away blast cap, prevent wearing and tearing simultaneously.Air main, cap and end basin are made by casting or welding, and cap and air main are by bayonet socket or thread connection, and be easy to make.
Claims (4)
1. lid formula blast cap that is used for fluidized-bed reactor, contain air main (1) and cap (2), at least be provided with two spouts (4) on air main, it is characterized in that: described cap is enclosed within the air main outside, and cap inwall and air main outer wall form the air-out passage; Be provided with end basin (3) in the bottom of air main and cap, in the end basin along the angle β of inclined-plane and air main center line between 0 °～60 °, the angle α of described spout center line and air main center line is between 30 °～75 °; Described cap is connected with air main top or is supported on the end basin.
2. according to the described lid formula of claim 1 blast cap, it is characterized in that: described cap is connected the employing bayonet socket or is threaded with air main top.
3. according to the described lid formula of claim 1 blast cap, it is characterized in that: the spout on the described air main is arranged in same level height or layered arrangement on differing heights, and the spout on same level height adopts to be arranged symmetrically or arrange arbitrarily.
4. according to right 1,2 or 3 described lid formula blast caps, it is characterized in that: the cap top is hemispherical or covers abrasion-proof structure that described abrasion-proof structure perhaps increases annular fin (8) at the cap outer wall for to use Antiwear casing (7) above cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410042795 CN1583236A (en) | 2004-05-28 | 2004-05-28 | Cap hood for fluid bed reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410042795 CN1583236A (en) | 2004-05-28 | 2004-05-28 | Cap hood for fluid bed reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1583236A true CN1583236A (en) | 2005-02-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410042795 Pending CN1583236A (en) | 2004-05-28 | 2004-05-28 | Cap hood for fluid bed reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1583236A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100557308C (en) * | 2007-12-21 | 2009-11-04 | 哈尔滨工业大学 | Wall-Central Composite is supplied with the fluidized bed combustor of secondary wind |
| CN107013904A (en) * | 2017-04-14 | 2017-08-04 | 中国石油化工股份有限公司 | A kind of CFBB A types blast cap and its manufacture method |
| CN108680016A (en) * | 2018-06-01 | 2018-10-19 | 潞城市泰山石膏建材有限公司 | A kind of anti-back powder blast cap of land plaster fluidized bed calcining device |
| CN108793161A (en) * | 2018-06-26 | 2018-11-13 | 陕西科汇热工技术有限责任公司 | A kind of blast cap |
| CN110559955A (en) * | 2019-07-31 | 2019-12-13 | 江苏科圣化工机械有限公司 | organosilicon fluidized bed distributing plate |
| CN111359548A (en) * | 2020-05-06 | 2020-07-03 | 淮阴工学院 | Fluidized bed gas distribution plate mechanism with easily-detachable blast cap |
| CN112892509A (en) * | 2021-01-20 | 2021-06-04 | 山东大学 | Sulfur-carrying active coke fluidized regeneration tower, regeneration system and regeneration method |
-
2004
- 2004-05-28 CN CN 200410042795 patent/CN1583236A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100557308C (en) * | 2007-12-21 | 2009-11-04 | 哈尔滨工业大学 | Wall-Central Composite is supplied with the fluidized bed combustor of secondary wind |
| CN107013904A (en) * | 2017-04-14 | 2017-08-04 | 中国石油化工股份有限公司 | A kind of CFBB A types blast cap and its manufacture method |
| CN108680016A (en) * | 2018-06-01 | 2018-10-19 | 潞城市泰山石膏建材有限公司 | A kind of anti-back powder blast cap of land plaster fluidized bed calcining device |
| CN108793161A (en) * | 2018-06-26 | 2018-11-13 | 陕西科汇热工技术有限责任公司 | A kind of blast cap |
| CN110559955A (en) * | 2019-07-31 | 2019-12-13 | 江苏科圣化工机械有限公司 | organosilicon fluidized bed distributing plate |
| CN110559955B (en) * | 2019-07-31 | 2023-07-14 | 江苏科圣化工机械有限公司 | Organosilicon fluidized bed distribution plate |
| CN111359548A (en) * | 2020-05-06 | 2020-07-03 | 淮阴工学院 | Fluidized bed gas distribution plate mechanism with easily-detachable blast cap |
| CN111359548B (en) * | 2020-05-06 | 2022-05-17 | 淮阴工学院 | Fluidized bed gas distribution plate mechanism with easily-detachable blast cap |
| CN112892509A (en) * | 2021-01-20 | 2021-06-04 | 山东大学 | Sulfur-carrying active coke fluidized regeneration tower, regeneration system and regeneration method |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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