CN102134005A - Double-type air-distribution plate and single pipe discharging sending tank - Google Patents
Double-type air-distribution plate and single pipe discharging sending tank Download PDFInfo
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- CN102134005A CN102134005A CN 201110023567 CN201110023567A CN102134005A CN 102134005 A CN102134005 A CN 102134005A CN 201110023567 CN201110023567 CN 201110023567 CN 201110023567 A CN201110023567 A CN 201110023567A CN 102134005 A CN102134005 A CN 102134005A
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- Prior art keywords
- distribution plate
- air distribution
- air
- auxilliary
- fluidifying
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- 238000007599 discharging Methods 0.000 title abstract description 4
- 239000003245 coal Substances 0.000 claims abstract description 39
- 230000005540 biological transmission Effects 0.000 claims description 25
- 238000009423 ventilation Methods 0.000 claims description 20
- 238000005243 fluidization Methods 0.000 claims description 19
- 239000007787 solid Substances 0.000 abstract 2
- 230000001502 supplementing effect Effects 0.000 abstract 1
- 239000002817 coal dust Substances 0.000 description 15
- 239000000843 powder Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 238000002309 gasification Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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Abstract
The invention discloses a double-type air-distribution plate and single pipe discharging sending tank. The sending tank comprises a tank body with a cylindrical upper half part and a conic lower half part and is characterized in that: the conic lower half part is provided with a main fluidifying air chamber and an auxiliary fluidifying air chamber; the auxiliary fluidifying air chamber is sleeved outside the main fluidifying air chamber; and a main fluidifying air distribution plate and an auxiliary fluidifying air distribution plate are arranged in the main fluidifying air chamber upwards sequentially. The double-type air-distribution plate and single pipe discharging sending tank improves the utilization rate of inner spaces of the conventional sending tank and effectively prevents internal pulverized coal from bridging. Two different forms of air-distribution plates, namely umbrella hoods are used to control the sizes of fluidifying areas, so that the delivery with higher solid/gas ratio can be realized. The adjustment in a lager solid/gas ratio range can be realized by adjusting two flows of fluidifying air, pressurizing air and supplementing air.
Description
Technical field
The present invention relates to dry coal powder feed stream bed gasification furnace technology, particularly a kind of dimorphism formula air distribution plate, single tube top discharge send jar.
Background technology
Dry coal powder feed stream bed gasification furnace is the main direction of present gasification furnace research and development, and wherein dry coal powder pressurization Dense Phase Pneumatic Conveying technology is one of technology of most critical in the dry coal powder feed pressurization entrained flow bed gasification technology.
The coal-supply system of the dry coal powder pressure gasifying device (brands such as Shell and GSP) of main flow all adopts the lock hopper technology at present, is about to coal dust and is transported to high-pressure chamber through the stage variable pressure storehouse by normal pressure powder storehouse, is transported to gasification furnace by dense-phase transporting system again.The key device of this system sends jar exactly, high-pressure chamber just, and powder is fluidisation in sending jar, and with inertia delivering gas (N
2Or CO
2) coal dust is arrived gasifier nozzle by ducting.Device hereto, the product of Shell board is to adopt two inflation awls to carry out fluidisation, and coal dust is flowed out through pipeline to gasification furnace by the bottom of inflation awl, and the product of GSP board then adopts the top discharge mode, and both solid-gas ratios are all at 480 ~ 500kg/m
3In the scope.The Shen Xiang of Southeast China University woods design-calculated dry coal powder adds densification and carries test cell mutually, adopts the mode of bottom fluidization top discharge, carries solid-gas ratio can reach 586.2 kg/m
3
Transmission jar in the above coal dust dense-phase transporting system all is single taper air distribution plate fluidisations, the one tunnel or the two-way discharging, and it is low that taper sends between ullage degree of utilization, and normal the generation put up a bridge.And, working process is for being placed in the streaming tank the coal dust in the lock hopper is disposable, carried a pipeful ofly to put a pipeful ofly again, so just caused the height change of material level in the streaming tank, and then cause the fugitiveness of fluidisation or the complexity of controlling, the instability and the discontinuous problem that cause coal dust to be carried.
Summary of the invention
The objective of the invention is at the problems referred to above, provide a kind of dimorphism formula air distribution plate, single tube top discharge to send jar, adopt the stabilization fluid of the air distribution plate realization coal dust of two different types in bottom, can effectively solve the low and bridging problem of space availability ratio that an air distribution plate exists, can also solve then because the fugitiveness of fluidisation or the complexity of controlling cause coal dust to carry instability and the discontinuous problem that occurs, solid-gas ratio can also be brought up to 200 ~ 800kg/m
3
Technical scheme of the present invention is as follows:
Dimorphism formula air distribution plate, single tube top discharge send jar, comprise that the first half is the tank body that cylindric and lower part is the cone shape, it is characterized in that: the lower part of described cone shape is provided with mainstreaming air compartment and auxilliary fluidisation air compartment, auxilliary fluidisation air compartment is socketed on mainstreaming air compartment outside, upwards is disposed with main flow wind transmission air distribution plate and auxilliary fluidized wind air distribution plate in the mainstreaming air compartment.
Auxilliary fluidized wind air distribution plate upper end is provided with passes the pulverized coal channel that sends the tank top, and described pulverized coal channel lower end is provided with the umbrella hood of opening towards auxilliary fluidized wind air distribution plate.
Described transmission tank top is provided with pressurising wind ventilation inlet.
Described pulverized coal channel is positioned at the part that sends the tank top and is provided with additional wind ventilation inlet, and pulverized coal channel 6 tops are discharge.
Described transmission tank top also is provided with the pressure-modulation valve interface.
The tapered orifice plate shape of described auxilliary fluidized wind air distribution plate.
The bottom of described mainstreaming air compartment is provided with main flow wind transmission ventilation inlet; The sidewall of described auxilliary fluidisation air compartment is provided with auxilliary fluidized wind ventilation inlet.Fluidized wind is divided into main flow wind transmission ventilation inlet and auxiliary flow wind transmission ventilation inlet enters two air compartments.
Described transmission tank top is provided with two coal spouts, is separately installed with control cock on the coal spout, alternately the pressurising coal supply.
Each transportation work style all is equipped with flow control valve, all establishes control cock on coal breakage and the convey coal pipe.Offer manhole and level-sensing device at the tank body side cylindrical section that sends jar.
Carrying method of the present invention is: coal dust is alternately tilted to feed from the tank body the top by two coal dropping ports, coal dust falls the back by blow off wall and enter mainstreaming district by the umbrella hood control that is connected with the coal dust delivery pipe of auxiliary flow wind transmission by wall, after fluidisation, send jar from sending tank top output along the convey coal pipe that is positioned at the tank body center, the pipe bent position that goes out tank body at coal chute is set up additional wind, can realize the adjusting of solid-gas ratio on a large scale.
Beneficial effect of the present invention is as follows:
(1) improves traditional inner space degree of utilization that sends jar, and effectively prevented inner coal dust bridging;
(2) adopt two air distribution plates that kind is multi-form, i.e. the size of umbrella hood control fluidisation area can realize that more high solid-gas ratio is carried;
(3) can realize the adjusting of bigger solid-gas ratio scope by adjusting to two plume wind transmissions, pressurising wind and additional wind.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is a median surface cutaway view of the present invention
Fig. 3 is on the plan structure scheme drawing of the present invention
Wherein Reference numeral is: 1, main flow wind transmission ventilation inlet, 2, the mainstreaming air compartment, 3, main flow wind transmission air distribution plate, 4, auxilliary fluidized wind air distribution plate, 5, umbrella hood, 6, pulverized coal channel, 7, replenish the wind ventilation inlet, 8, pressurising wind ventilation inlet, 9, the pressure-modulation valve interface, 10, discharge, 11, coal spout, 12, manhole, 13, auxilliary fluidisation air compartment, 14, auxilliary fluidized wind ventilation inlet.
The specific embodiment
As Figure 1-3, dimorphism formula air distribution plate, single tube top discharge send jar, comprise that the first half is the tank body that cylindric and lower part is the cone shape, the lower part of described cone shape is provided with mainstreaming air compartment 2 and auxilliary fluidisation air compartment 13, auxilliary fluidisation air compartment 13 is socketed on mainstreaming air compartment 2 outsides, upwards is disposed with main flow wind transmission air distribution plate 3 and auxilliary fluidized wind air distribution plate 4 in the mainstreaming air compartment 2.
Auxilliary fluidized wind air distribution plate 4 upper ends are provided with passes the pulverized coal channel 6 that sends the tank top, and described pulverized coal channel 6 lower ends are provided with the umbrella hood 5 of opening towards auxilliary fluidized wind air distribution plate 4.
Described transmission tank top is provided with pressurising wind ventilation inlet 88.
Described pulverized coal channel 6 is positioned at the part that sends the tank top and is provided with additional wind ventilation inlet 7, and pulverized coal channel 6 tops are discharge 10.
Described transmission tank top also is provided with pressure-modulation valve interface 9.
Described auxilliary fluidized wind air distribution plate 4 tapered orifice plate shapes.
The bottom of described mainstreaming air compartment 2 is provided with main flow wind transmission ventilation inlet 1; The sidewall of described auxilliary fluidisation air compartment 13 is provided with auxilliary fluidized wind ventilation inlet 14.Fluidized wind is divided into main flow wind transmission ventilation inlet 1 and auxiliary flow wind transmission ventilation inlet enters two air compartments.
Described transmission tank top is provided with two coal spouts 11, is separately installed with control cock on the coal spout 11, alternately the pressurising coal supply.
Each transportation work style all is equipped with flow control valve, all establishes control cock on coal breakage and the convey coal pipe.Offer manhole 12 and level-sensing device at the tank body side cylindrical section that sends jar.
Carrying method of the present invention is: coal dust is alternately tilted to feed from the tank body the top by two coal dropping ports, coal dust falls the back by blow off wall and enter mainstreaming district by umbrella hood 5 control that is connected with the coal dust delivery pipe of auxiliary flow wind transmission by wall, after fluidisation, send jar from sending tank top output along the convey coal pipe that is positioned at the tank body center, the pipe bent position that goes out tank body at coal chute is set up additional wind, can realize the adjusting of solid-gas ratio on a large scale.
Claims (8)
1. dimorphism formula air distribution plate, single tube top discharge send jar, comprise that the first half is the tank body that cylindric and lower part is the cone shape, it is characterized in that: the lower part of described cone shape is provided with mainstreaming air compartment (2) and auxilliary fluidisation air compartment (13), auxilliary fluidisation air compartment (13) is socketed on mainstreaming air compartment (2) outside, upwards is disposed with main flow wind transmission air distribution plate (3) and auxilliary fluidized wind air distribution plate (4) in the mainstreaming air compartment (2).
2. dimorphism formula air distribution plate according to claim 1, single tube top discharge send jar, it is characterized in that: auxilliary fluidized wind air distribution plate (4) upper end is provided with passes the pulverized coal channel (6) that sends the tank top, and described pulverized coal channel (6) lower end is provided with the umbrella hood (5) of opening towards auxilliary fluidized wind air distribution plate (4).
3. dimorphism formula air distribution plate according to claim 1, single tube top discharge send jar, and it is characterized in that: described transmission tank top is provided with pressurising wind ventilation inlet (8).
4. dimorphism formula air distribution plate according to claim 3, single tube top discharge send jar, it is characterized in that: described pulverized coal channel (6) is positioned at the part that sends the tank top and is provided with additional wind ventilation inlet (7), and pulverized coal channel (6) top is discharge (10).
5. send jar according to claim 1 or 4 described dimorphism formula air distribution plates, single tube top discharge, it is characterized in that: described transmission tank top also is provided with pressure-modulation valve interface (9).
6. dimorphism formula air distribution plate according to claim 1, single tube top discharge send jar, it is characterized in that: the tapered orifice plate shape of described auxilliary fluidized wind air distribution plate (4).
7. dimorphism formula air distribution plate according to claim 1, single tube top discharge send jar, and it is characterized in that: the bottom of described mainstreaming air compartment (2) is provided with main flow wind transmission ventilation inlet (1); The sidewall of described auxilliary fluidisation air compartment (13) is provided with auxilliary fluidized wind ventilation inlet (14).
8. dimorphism formula air distribution plate according to claim 1, single tube top discharge send jar, and it is characterized in that: described transmission tank top is provided with two coal spouts (11), and coal spout is separately installed with control cock on (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110023567A CN102134005B (en) | 2011-01-21 | 2011-01-21 | Double-type air-distribution plate and single pipe discharging sending tank |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110023567A CN102134005B (en) | 2011-01-21 | 2011-01-21 | Double-type air-distribution plate and single pipe discharging sending tank |
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| CN102134005A true CN102134005A (en) | 2011-07-27 |
| CN102134005B CN102134005B (en) | 2012-09-26 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104261135A (en) * | 2014-09-23 | 2015-01-07 | 浙江明天机械有限公司 | Negative pressure feeding device for dry method granulator |
| CN104692432A (en) * | 2015-03-31 | 2015-06-10 | 沈阳鑫博工业技术股份有限公司 | Fluidization type stay reforming device and method for producing alpha-aluminum oxide |
| CN105775786A (en) * | 2016-05-31 | 2016-07-20 | 济宁矿业集团海纳科技机电设备制造有限公司 | Sprayed concrete material conveying and mixing system |
| CN108674995A (en) * | 2018-04-13 | 2018-10-19 | 东南大学 | A kind of small doses charging gear of high pressure dilute phase and control method |
| CN109230544A (en) * | 2018-10-11 | 2019-01-18 | 盐城项果科技有限公司 | Fluidize case |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110437881B (en) * | 2018-05-02 | 2020-11-17 | 国家能源投资集团有限责任公司 | Discharging device and system for gasifying granular materials |
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| CN201424293Y (en) * | 2009-05-07 | 2010-03-17 | 中冶华天工程技术有限公司 | Powder fluidization conveying device |
| CN101798022A (en) * | 2010-02-25 | 2010-08-11 | 东南大学 | Multipath discharging dense-phase pneumatic conveying device and method |
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2011
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Patent Citations (7)
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104261135A (en) * | 2014-09-23 | 2015-01-07 | 浙江明天机械有限公司 | Negative pressure feeding device for dry method granulator |
| CN104692432A (en) * | 2015-03-31 | 2015-06-10 | 沈阳鑫博工业技术股份有限公司 | Fluidization type stay reforming device and method for producing alpha-aluminum oxide |
| CN104692432B (en) * | 2015-03-31 | 2016-02-10 | 沈阳鑫博工业技术股份有限公司 | A kind of fluidizing type producing Alpha-alumina stops conversion system and method for transformation |
| CN105775786A (en) * | 2016-05-31 | 2016-07-20 | 济宁矿业集团海纳科技机电设备制造有限公司 | Sprayed concrete material conveying and mixing system |
| CN108674995A (en) * | 2018-04-13 | 2018-10-19 | 东南大学 | A kind of small doses charging gear of high pressure dilute phase and control method |
| CN109230544A (en) * | 2018-10-11 | 2019-01-18 | 盐城项果科技有限公司 | Fluidize case |
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| Publication number | Publication date |
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| CN102134005B (en) | 2012-09-26 |
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Effective date of registration: 20180516 Address after: 610000 18 West core road, hi-tech West District, Chengdu, Sichuan Patentee after: Dongfang Electric Co., Ltd. Address before: 610036 Shu Han Road, Jinniu District, Chengdu, Sichuan Province, No. 333 Patentee before: Dongfang Electric Corporation |