CN201962257U - Dry coal powder pressurizing and dense-phase transporting system - Google Patents
Dry coal powder pressurizing and dense-phase transporting system Download PDFInfo
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- CN201962257U CN201962257U CN2011200195143U CN201120019514U CN201962257U CN 201962257 U CN201962257 U CN 201962257U CN 2011200195143 U CN2011200195143 U CN 2011200195143U CN 201120019514 U CN201120019514 U CN 201120019514U CN 201962257 U CN201962257 U CN 201962257U
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- coal
- jar
- lock hopper
- lock
- normal pressure
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- 239000003245 coal Substances 0.000 title claims abstract description 98
- 239000000843 powder Substances 0.000 title claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims description 32
- 239000000446 fuel Substances 0.000 claims description 7
- 238000005243 fluidization Methods 0.000 abstract description 16
- 238000007599 discharging Methods 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 239000002817 coal dust Substances 0.000 description 33
- 241000273930 Brevoortia tyrannus Species 0.000 description 13
- 238000002309 gasification Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 2
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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Abstract
The utility model discloses a dry coal powder pressurizing and dense-phase transporting system, which comprises a constant pressure coal bunker, a sending tank and lock hoppers through which the constant pressure coal bunker is connected with the sending tank, and is characterized in that one constant pressure coal bunker corresponds to one sending tank and two constant pressure lock hoppers; coal drop control valves are respectively arranged on connecting pipelines which are arranged between the constant pressure lock hoppers and the constant pressure coal bunker; the coal drop control valves are respectively arranged on coal drop pipelines which are arranged between the lock hoppers and the sending tank; and each lock hopper is provided with a pressure release pipeline and a pressurizing pipeline. Coal is transported into the sending tank continuously through the alternative pressurization and pressure release of the two lock hoppers, so that the stable level height in a fluidizing tank can be realized, and consequently the fluidization state is stable and the coal powder pneumatic transportation can be stabilized continuously; and the pneumatic transportation with bigger solid and gas ratio range can be realized through two air distribution boards and a single pipe upper discharging structure of the sending tank.
Description
Technical field
The utility model relates to dry coal powder feed stream bed gasification furnace technology, particularly a kind of dry coal powder pressurization dense-phase transporting system.
Background technology
Dry coal powder feed stream bed gasification furnace is the main direction of present vapourizing furnace researchdevelopment, 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 vapourizing 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 pipe-line transportation.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 vapourizing 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 dry coal powder of the Shen Xiang of Southeast China University woods design adds densification and carries testing table 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, and working process is for being placed in the streaming tank the coal dust in the lock hopper is disposable, carried a pipeful of put again a pipeful of, so just caused the height change of material level in the streaming tank, and then cause fluidizing unstable or the complicacy of controlling, the instability and the discontinuous problem that cause coal dust to be carried.
Summary of the invention
The purpose of this utility model provides a kind of air distribution plate of dimorphism formula, dry coal powder pressurization dense-phase transporting system that the single tube top discharge sends jar of adopting, can effectively solve because fluidizing unstable or the complicacy of controlling, cause coal dust to carry instability and the discontinuous problem that occurs, continous-stable when this structure delivery system is carried also has solid-gas ratio 200 ~ 800kg/m3 on a large scale.
The technical solution of the utility model is as follows:
A kind of dry coal powder pressurization dense-phase transporting system, comprise the normal pressure coal bunker, send jar and be connected in normal pressure branch storehouse and send jar between lock hopper, it is characterized in that: a described normal pressure coal bunker correspondence is provided with one and sends jar and two normal pressure lock hoppers, on the connecting pipeline between each normal pressure lock hopper and the normal pressure coal bunker coal breakage control valve is set all, each lock hopper and the coal breakage pipeline that sends between the jar are provided with the coal breakage control valve, are provided with pressure relief pipe and pressurising pipeline on each lock hopper.
Alternately fill pressure release when continuing in sending jar coal supply when two lock hoppers, the controlling level that needs to keep to send jar, and control the coal breakage amount by each lock hopper and the coal breakage control valve on the coal dust pipeline that pressurizes between the lock hopper.Lock hopper adopts the rare gas element pressurising to being a bit larger tham the pressure adjusting control valve that sends jar then, continues to sending a jar coal supply according to the coal dust operational throughput that sends jar.Every road gas all is provided with the Electromagnetic Flow control valve, controls the flow of rare gas element as required.Coal dust brings out through the coal dust transfer line from the transmission tank deck and enters gasifier nozzle.
A described transmission jar lower end is provided with mainstreaming taper air compartment and auxilliary fluidisation conical ring air compartment, auxilliary fluidisation conical ring air compartment is socketed on mainstreaming taper air compartment outside, upwards is disposed with dull and stereotyped blast cap air distribution plate of main flow wind transmission and auxilliary fluidized wind taper orifice plate air distribution plate in the mainstreaming taper air compartment.
Described transmission tank top is provided with a pulverized coal channel, and pulverized coal channel is positioned at the upper end of auxilliary fluidized wind taper orifice plate air distribution plate, and the pulverized coal channel lower end is provided with the umbrella hood of opening towards auxilliary fluidisation taper orifice plate air distribution plate.
The bottom of described mainstreaming taper air compartment is a main flow wind transmission blast inlet, is communicated with the mainstreaming air pipe line by main flow wind transmission blast inlet.
The sidewall of described auxilliary fluidisation conical ring air compartment is provided with auxilliary fluidized wind blast inlet, by auxilliary fluidized wind blast inlet and auxiliary flow wind transmission pipeline connection.
Described transmission tank top is provided with pressurising wind blast inlet.
Described pulverized coal channel is positioned at the part that sends the tank top and is provided with additional wind blast inlet, is communicated with additional air pipe line by replenishing the wind blast inlet; The pulverized coal channel top is a discharge.
Described transmission tank top is provided with pressure regulator valve, also is provided with two fuel dropping pipes with the coal breakage pipeline connection, and the fuel dropping pipe upper end is connected with two lock hoppers that the coal breakage control valve is installed respectively, replaces the pressurising coal supply.
Offer manhole and level gage at the tank body side cylindrical section that sends jar.
Working method of the present utility model is: normal operation is put into the normal pressure coal bunker through the coal dust that grinds and be dried to certain particle diameter and water content down,
(1) lock hopper pressure release is to atmospheric pressure state, its with send that control valve is in closing condition between jar;
(2) open the coal dust control valve that lock hopper is connected with the normal pressure coal bunker, make coal dust fill it up with lock hopper No. one;
(3) close control valve between lock hopper and the normal pressure coal bunker;
(4) lock hopper is carried out pressurising to being slightly larger than the transmission pressure tank;
(5) treat that No. two lock hopper coal dusts add, open lock hopper and send jar between the coal dust control valve, regulate the whereabouts amount and make it continue coal supply in sending jar, controlling level in keeping sending jar;
(6) close No. two lock hoppers and the control valve that sends jar with lock hopper, No. two lock hoppers are carried out pressure release, make its arrival atmospheric pressure state;
(7) No. two lock hoppers are repeated above-mentioned (2)～(5) and operate, so circulation keeps lock hopper successive coal supply in sending jar.Send a jar controlling level and remain unchanged, regulate fluidized wind, pressurising wind and additional air quantity and reach operational throughput and carry the solid-gas ratio requirement, remain unchanged, realize continual and steady coal dust conveying.
In sending jar, 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 output tube 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.
The beneficial effects of the utility model are as follows:
1, the pressure release of alternately filling by two lock hoppers continues toward a transmission jar coal supply, thereby can realize that then the stable fluidized of controlling level is stable in the streaming tank, and uninterrupted stable coal dust is air conveying;
2, can realize the air conveying of bigger solid-gas ratio scope by the layer cloth aerofoil that sends jar, the structure of single tube top discharge.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Fig. 2 sends the structural representation of jar for the utility model
Fig. 3 sends the sectional view of jar for the utility model
Wherein Reference numeral is: 1 main flow wind transmission blast inlet, 2 mainstreaming taper air compartments, the dull and stereotyped blast cap air distribution plate of 3 main flow wind transmissions, 4 auxilliary fluidized wind taper orifice plate air distribution plates, 5 umbrella hoods, 6 pulverized coal channels, 7 replenish wind blast inlet, 8 pressurising wind blast inlets, 9 pressure regulator valves, 10 discharges, 11 fuel dropping pipes, 12 manholes, 13 auxilliary fluidisation conical ring air compartments, 14 auxilliary fluidized wind blast inlets, 15 electromagnetic flow control device, 16 replenish air pipe line, and 17 send a jar pressurising air pipe line, 18 mainstreaming air pipe lines, 19 send jar, 20 coal breakage control valves, No. 21 lock hoppers, 22 No. two lock hoppers, 23 tensimeters, No. 24 lock hopper pressure relief pipes, No. 25 lock hopper pressurising airducts, 26 normal pressure coal bunkers, 27 coal dust pipelines, 28 auxiliary flow wind transmission pipelines, 29 No. two lock hopper pressure relief pipes, 30 No. two lock hopper pressurising pipelines.
Embodiment
As Figure 1-3, a kind of dry coal powder pressurization dense-phase transporting system, comprise normal pressure coal bunker 26, send jars 19 and be connected in normal pressure branch storehouse and send lock hopper between jars 19, a described normal pressure coal bunker correspondence is provided with one and sends jar 19 and two lock hoppers 21,22, on the connecting pipeline between each normal pressure lock hopper and the normal pressure coal bunker 26 coal breakage control valve 20 is set all, each lock hopper and the coal breakage pipeline that sends between the jar 19 are provided with coal breakage control valve 20, are provided with pressure relief pipe and pressurising pipeline on each lock hopper.
Alternately fill pressure release when two lock hoppers and continue when sending in jars 19 coal supply, need to keep to send jars 19 controlling level, and control the coal breakage amounts by each lock hopper and the coal breakage control valve 20 on the coal dust pipeline 27 that pressurizes between the lock hopper.Lock hopper adopts the rare gas element pressurising to being a bit larger tham the pressure adjusting control valve that sends jar 19 then, continues to sending jar 19 coal supplies according to the coal dust operational throughput that sends jar 19.Every road gas all is provided with Electromagnetic Flow control valve 15, controls the flow of rare gas element as required, and the corresponding air pipe line 16 that replenishes can also be set.Coal dust goes out through the coal dust transfer line to enter gasifier nozzle from sending jar 19 tops.
Described transmission jar 19 lower ends are provided with mainstreaming taper air compartment 2 and auxilliary fluidisation conical ring air compartment 13, auxilliary fluidisation conical ring air compartment 13 is socketed on mainstreaming taper air compartment 2 outsides, upwards is disposed with dull and stereotyped blast cap air distribution plate 3 of main flow wind transmission and auxilliary fluidized wind taper orifice plate air distribution plate 4 in the mainstreaming taper air compartment 2.
Described transmission jar 19 tops are provided with a pulverized coal channel 6, and pulverized coal channel 6 is positioned at the upper end of auxilliary fluidized wind taper orifice plate air distribution plate 4.6 of described pulverized coal channels are set to one, and pulverized coal channel 6 lower ends are provided with the umbrella hood 5 of opening towards auxilliary fluidisation taper orifice plate air distribution plate.
The bottom of described mainstreaming taper air compartment 2 is a main flow wind transmission blast inlet 1, is communicated with mainstreaming air pipe line 18 by main flow wind transmission blast inlet 1.
The sidewall of described auxilliary fluidisation conical ring air compartment 13 is provided with auxilliary fluidized wind blast inlet 14, is communicated with auxiliary flow wind transmission pipeline 28 by auxilliary fluidized wind blast inlet 14.
Described transmission jar 19 tops are provided with pressurising wind blast inlet 8, are communicated with a transmission jar pressurising air pipe line 17 by pressurising wind blast inlet 8.
Described pulverized coal channel 6 is positioned at the part that sends jar 19 tops and is provided with additional wind blast inlet 7, replenishes air pipe line 16 by replenishing 7 connections of wind blast inlet; Pulverized coal channel 6 tops are discharge 10, connect coal chute road 27 by discharge.
Described transmission jar 19 tops are provided with pressure regulator valve 9, also are provided with two fuel dropping pipes 11 with the coal breakage pipeline connection, and fuel dropping pipe 11 upper ends are connected with two lock hoppers that coal breakage control valve 20 is installed respectively, replace the pressurising coal supply.
Offer manhole 12 and level gage at the tank body side cylindrical section that sends jar 19.
Working method of the present utility model is: normal operation down, put into normal pressure coal bunker 26 through the coal dust that grinds and be dried to certain particle diameter and water content, be provided with tensimeter 23 on a lock hopper 21 and No. two lock hoppers 22, also be provided with a lock hopper pressure relief pipe 24 and a lock hopper pressurising airduct 25 on the described lock hopper 21, also be provided with No. two lock hopper pressure relief pipes 29 and No. two lock hopper pressurising airducts 30 on No. two lock hoppers 22, therefore
(1) lock hopper 21 pressure release is to atmospheric pressure state, and itself and transmission jar 19 control valves are in closing condition;
(2) open the coal dust control valve that lock hopper 21 is connected with normal pressure coal bunker 26, make coal dust fill it up with lock hopper 21 No. one;
(3) close control valve between lock hopper 21 and the normal pressure coal bunker 26;
(4) lock hopper 21 is carried out pressurising and send jar 19 pressure to being slightly larger than;
(5) treat that No. two lock hopper 22 coal dusts add, open lock hopper 21 and send coal dust control valve between jars 19, regulate the whereabouts amount it is continued to sending coal supply in jars 19, keep sending controlling level in jars 19;
(6) close No. two lock hoppers 22 with send jars 19 with the control valve of lock hopper, No. two lock hoppers 22 are carried out pressure release, make it arrive atmospheric pressure state;
(7) No. two lock hoppers 22 are repeated above-mentioned (2)～(5) and operate, so circulation keeps lock hopper successive coal supply in sending jar 19.Send jar 19 controlling levels and remain unchanged, regulate fluidized wind, pressurising wind and additional air quantity and reach operational throughput and carry the solid-gas ratio requirement, remain unchanged, realize continual and steady coal dust conveying.
In sending jar 19, 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 output tube of auxiliary flow wind transmission by wall, the edge is positioned at the convey coal pipe at tank body center from sending jar 19 a tops output transmission jar 19 after fluidisation, 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 (5)
1. dry coal powder pressurization dense-phase transporting system, comprise normal pressure coal bunker (26), send jar (19) and be connected in normal pressure coal bunker (26) and transmission jar (19) between lock hopper, it is characterized in that: a described normal pressure coal bunker correspondence is provided with one and sends jar (19) and two normal pressure lock hoppers, be provided with coal breakage control valve (20) on the connecting pipeline between each normal pressure lock hopper and the normal pressure coal bunker (26), each lock hopper and the coal breakage pipeline that sends between jar (19) are provided with coal breakage control valve (20), are provided with pressure relief pipe and pressurising pipeline on each lock hopper.
2. a kind of dry coal powder pressurization dense-phase transporting system according to claim 1, it is characterized in that: described transmission jar (a 19) top is provided with a pulverized coal channel (6).
3. a kind of dry coal powder pressurization dense-phase transporting system according to claim 2, it is characterized in that: the upper end of described pulverized coal channel (6) also is provided with and replenishes wind blast inlet (7).
4. a kind of dry coal powder pressurization dense-phase transporting system according to claim 1, it is characterized in that: described transmission jar (a 19) top is provided with pressurising wind blast inlet (8).
5. a kind of dry coal powder pressurization dense-phase transporting system according to claim 1, it is characterized in that: described transmission jar (a 19) top is provided with pressure regulator valve (9), also be provided with two fuel dropping pipes (11) with the coal breakage pipeline connection, be separately installed with coal breakage control valve (20) on the fuel dropping pipe (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200195143U CN201962257U (en) | 2011-01-21 | 2011-01-21 | Dry coal powder pressurizing and dense-phase transporting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200195143U CN201962257U (en) | 2011-01-21 | 2011-01-21 | Dry coal powder pressurizing and dense-phase transporting system |
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| Publication Number | Publication Date |
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| CN201962257U true CN201962257U (en) | 2011-09-07 |
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| CN2011200195143U Expired - Lifetime CN201962257U (en) | 2011-01-21 | 2011-01-21 | Dry coal powder pressurizing and dense-phase transporting system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102925216A (en) * | 2012-10-25 | 2013-02-13 | 云南煤化工集团有限公司 | Method for implementing mutual pressurization/depressurization among pressurized gasification furnace coal locks |
| CN103215078A (en) * | 2013-04-28 | 2013-07-24 | 上海泽玛克敏达机械设备有限公司 | Pressurizing and decompressing process for coal lock by utilizing byproduct carbon dioxide gas and coaling system |
| CN103662837A (en) * | 2013-11-13 | 2014-03-26 | 新奥科技发展有限公司 | Dense-phase conveying system and method |
| CN104403693A (en) * | 2014-12-11 | 2015-03-11 | 赛鼎工程有限公司 | Crushed-coal pressurizing gasifier |
| CN104692127A (en) * | 2015-01-23 | 2015-06-10 | 新奥科技发展有限公司 | Dense-phase conveying control method and system |
| CN105253631A (en) * | 2015-11-18 | 2016-01-20 | 神华集团有限责任公司 | Powder pressurized conveying device |
| CN106190330A (en) * | 2016-08-28 | 2016-12-07 | 陈丽 | The fine coal pressure-flow system of a kind of coal-fired gasification air flow bed and method |
| CN107418630A (en) * | 2017-08-17 | 2017-12-01 | 武汉高斯生态能源技术有限公司 | Biomass pressure conveyer device |
-
2011
- 2011-01-21 CN CN2011200195143U patent/CN201962257U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102925216A (en) * | 2012-10-25 | 2013-02-13 | 云南煤化工集团有限公司 | Method for implementing mutual pressurization/depressurization among pressurized gasification furnace coal locks |
| CN103215078A (en) * | 2013-04-28 | 2013-07-24 | 上海泽玛克敏达机械设备有限公司 | Pressurizing and decompressing process for coal lock by utilizing byproduct carbon dioxide gas and coaling system |
| CN103215078B (en) * | 2013-04-28 | 2014-10-22 | 上海泽玛克敏达机械设备有限公司 | Pressurizing and decompressing process for coal lock by utilizing byproduct carbon dioxide gas and coaling system |
| CN103662837A (en) * | 2013-11-13 | 2014-03-26 | 新奥科技发展有限公司 | Dense-phase conveying system and method |
| CN104403693A (en) * | 2014-12-11 | 2015-03-11 | 赛鼎工程有限公司 | Crushed-coal pressurizing gasifier |
| CN104403693B (en) * | 2014-12-11 | 2017-01-04 | 赛鼎工程有限公司 | A kind of crushed coal pressurized-gasification furnace |
| CN104692127A (en) * | 2015-01-23 | 2015-06-10 | 新奥科技发展有限公司 | Dense-phase conveying control method and system |
| CN105253631A (en) * | 2015-11-18 | 2016-01-20 | 神华集团有限责任公司 | Powder pressurized conveying device |
| CN106190330A (en) * | 2016-08-28 | 2016-12-07 | 陈丽 | The fine coal pressure-flow system of a kind of coal-fired gasification air flow bed and method |
| CN106190330B (en) * | 2016-08-28 | 2021-08-10 | 陈丽 | Pulverized coal pressurized conveying system and method of coal gasification entrained flow bed |
| CN107418630A (en) * | 2017-08-17 | 2017-12-01 | 武汉高斯生态能源技术有限公司 | Biomass pressure conveyer device |
| CN107418630B (en) * | 2017-08-17 | 2019-08-06 | 武汉高斯生态能源技术有限公司 | Biomass pressure conveyer device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180502 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 |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110907 |