CN105647589A - Conveying device, conveying system and conveying method - Google Patents

Conveying device, conveying system and conveying method Download PDF

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Publication number
CN105647589A
CN105647589A CN201610165219.6A CN201610165219A CN105647589A CN 105647589 A CN105647589 A CN 105647589A CN 201610165219 A CN201610165219 A CN 201610165219A CN 105647589 A CN105647589 A CN 105647589A
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CN
China
Prior art keywords
gas
solid mixture
storing device
foerderanlage
feeding pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610165219.6A
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Chinese (zh)
Inventor
胡立舜
陈卫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Air Products and Chemicals Inc
Original Assignee
General Electric Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
Priority to CN201610165219.6A priority Critical patent/CN105647589A/en
Publication of CN105647589A publication Critical patent/CN105647589A/en
Pending legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10JPRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/46Gasification of granular or pulverulent flues in suspension
    • C10J3/48Apparatus; Plants
    • C10J3/50Fuel charging devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34Details
    • B65G53/40Feeding or discharging devices
    • B65G53/50Pneumatic devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/04Bulk
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10JPRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00Details of gasification processes
    • C10J2300/09Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0913Carbonaceous raw material

Abstract

The invention relates to a conveying device, a conveying system and a conveying method. The conveying device comprises a conveying pipeline provided with an inlet entrance and an outlet, and a supplementary gas pipeline extending into the conveying pipeline, wherein the conveying pipeline comprises an expansion part provided with the entrance, a shrinkage part provided with the exit, and a middle part which is arranged between the expansion part and the shrinkage part and is communicated with the expansion part and the shrinkage part by fluid.

Description

E Foerderanlage, system and method
The application is point case application of Chinese invention patent application (application number: 201110158617.2, the applying date: on June 14th, 2011, denomination of invention: e Foerderanlage, system and method).
Technical field
The present invention relates to a kind of e Foerderanlage, system and method, particularly relate to a kind of by air conveying (PneumaticConveyance) solid powder carried out gasifying in vapourizing furnace (Gasifier) as carbonaceous fuel (CarbonaceousFuel) powder carry enters e Foerderanlage, system and method.
Background technology
Gasification refers to a carbonaceous fuel, as coal is converted into inflammable gas, such as the process of coal gas or synthetic gas. Usually, in gasification, carbonaceous fuel is delivered in vapourizing furnace along with oxygen or other fluids of controlled amounts. What carbonaceous fuel was stable and controlled is delivered in vapourizing furnace to obtaining the gasification performance expected is useful.
Air conveying being commonly used to is delivered into carbonaceous fuel in vapourizing furnace. Use in air conveying delivery system traditional, standing be equipped with storing device and this storing device fluid communication feed pipe and be arranged between storing device and vapourizing furnace and with the transport pipe of its fluid communication respectively.
Storing device receives carbonaceous fuel and carrier gas by feed pipe. Along with delivering gas constantly enters storing unit, the pressure in storing unit constantly increases thus reaches the stress level of expectation. The pressure water of this expectation, usually higher than the pressure in vapourizing furnace, like this, just produces pressure difference between storing unit and vapourizing furnace. Then, the gas-solid mixture carrying out self-storing mechanism is transported in vapourizing furnace from storing unit by transport pipe due to the effect of pressure difference.
But, in such tradition air-transport system, the flowing of carbonaceous fuel in transport pipe can be unstable liquid form. Such as, carbonaceous fuel flows with the form of piston flow (PlugFlow) in transport pipe, thus it can be caused to be uneven along the flowing of flow direction in transport pipe, and then it can be caused also to become unstable to the conveying in vapourizing furnace. Like this, so that it may cause the fluctuation of the temperature in vapourizing furnace. The performance of vapourizing furnace and life-span are disadvantageous by this.
So, it is desirable to provide a kind of newly by air conveying solid powder such as the e Foerderanlage of carbonaceous fuel powder, system and method.
Summary of the invention
An embodiment provides the e Foerderanlage of a kind of air conveying solid powder. This e Foerderanlage comprises the transport pipe offering entrance and exit and extends into the supplementary feed channel of described transport pipe. Described transport pipe comprises the expansion section offering described entrance, offer described outlet contraction flow region and be arranged between described expansion section and contraction flow region and with the middle portion of its fluid communication.
Another embodiment of the present invention provides the delivery system of a kind of air conveying solid powder.The supplementary feed channel that this delivery system comprises carrier gas channel that the storing device for receiving solid powder is connected with described storing device, transport pipe and is connected with described transport pipe. Described transport pipe is arranged at the downstream of described storing device and is connected with it, this transport pipe comprises the expansion section offering entrance, the contraction flow region of offering outlet and be arranged between described expansion section and contraction flow region and with the middle portion of its fluid communication.
The embodiment of the present invention further provides the carrying method of a kind of air conveying solid powder. This carrying method comprises conveying solid substance powder and enters storing device; Delivery of carrier gas is entered described storing device and adjusts to be mixed to form gas-solid mixture mutually with described solid powder and by the entrance of e Foerderanlage the gas-solid mixture from described storing device to be inputted in it, the make-up gas pipeline that wherein said e Foerderanlage comprises transport pipe and is connected with this transport pipe. This transport pipe comprises the expansion section offering described entrance, offer outlet contraction and be arranged between described expansion section and contraction flow region and with the middle portion of its fluid communication. Further, this carrying method comprises the described gas-solid mixture adjusted is transferred out described e Foerderanlage by the outlet of described contraction flow region.
Accompanying drawing explanation
Embodiment for the present invention in conjunction with the drawings is described, it is possible to understand the present invention better, in the accompanying drawings:
Fig. 1 is the schematic diagram of an embodiment of subject delivery system.
Fig. 2 is the schematic diagram of an embodiment of subject delivery system operating process.
Embodiment
Fig. 1 be the present invention can be used to solid powder, enter the schematic diagram of an embodiment of delivery system 10 carrying out in device 100 processing such as carbonaceous fuel powder carry. In non-limiting examples, system 10 can be used to be processed by air conveying solid powder is delivered in device 100. In one example, device 100 can comprise the vapourizing furnace gasified by solid powder. In certain embodiments, carbonaceous fuel can comprise coal. In other embodiments, carbonaceous fuel can comprise bituminous material (Bituminous), coal smoke (Soot), biomaterial (Biomass), refinery coke (PetroleumCoke) or its combination.
As shown in Figure 1, delivery system 10 comprises feeding unit 11, storing device 12, carrier gas (CarrierGas) pipeline 13, feeding pipe 14 and e Foerderanlage 15. In certain embodiments, feeding unit 11 is used for the solid powder with desired size distribution to be delivered in storing device 12. In a non-limiting examples, feeding unit 11 comprises feeding screw (ScrewFeeder).
Storing unit 12 and feeding unit 11 fluid communication, it receives the solid powder 16 from feeding unit 11 by such as pipeline. In other application, pump (not shown) also can be used to solid powder 16 to be delivered in storing unit 12. In some instances, storing device 12 is not confined to any specific shape. In non-limiting example, storing unit 12 can comprise be arranged on feeding unit downstream and with the top (not shown) of its fluid communication and the bottom (not shown) that is connected with top. In an embodiment, the top of storing device 12 can have cylindrical structural, and its underpart can have conical structure.
Carrier gas channel 13 is arranged on storing unit 12, and it delivery of carrier gas 17 can enter in storing unit 12 and form gas-solid mixture to mix with solid powder 16.In non-limiting example, carrier gas 17 can comprise carbonic acid gas, rare gas element such as one or more in nitrogen and other suitable gas. Although in the embodiment shown in fig. 1, delivery system 10 is provided with a carrier gas channel 13, but in some applications, delivery system 10 also can be provided with more than one carrier gas channel 13.
Along with carrier gas 17 constantly enters in storing device 12, the pressure in storing device 12 can be increased to the level of expectation. In non-limiting example, the pressure of the expectation in storing device 12 higher than the pressure in device 100, thus can produce pressure difference between storing device 12 and device 100. In an embodiment, the pressure expected in storing device 12 can be 3Mpa.
Feeding pipe 14 be arranged between storing device 12 and device 100 and respectively with its fluid communication, thus can process being delivered in device 100 from the gas-solid mixture in storing device 12, such as gasify. In non-limiting example, feeding pipe 14 can have cylindrical structural.
In the embodiment shown in fig. 1, feeding pipe 14 can comprise the first feeding pipe 18 and the 2nd feeding pipe 19. This first feeding pipe 18 is arranged between storing device 12 and e Foerderanlage 15, and it is used for being delivered in e Foerderanlage 15 from the gas-solid mixture in storing device 12. 2nd feeding pipe 19 is arranged between e Foerderanlage 15 and device 100, and it can be used to the gas-solid mixture carrying out self-conveying apparatus 15 to be delivered in device 100. In certain application, the 2nd feeding pipe 19 also can not be arranged.
In some applications, such as flow with the form of piston flow in the first feeding pipe 18 from the gas-solid mixture in storing device 12. This just can cause the flow rate of the solid powder in the first feeding pipe 18 can be uneven. In the illustrated embodiment, e Foerderanlage 15 be arranged between the first and second feeding pipes 18,19 and respectively with its fluid communication. This e Foerderanlage 15 can be used to the flowing of stable gas-solid mixture. Through the adjustment that gas-solid mixture is flowed by e Foerderanlage 15, the flowing of solid powder is just variable even, thus being transfused to that gas-solid mixture just can be stable enters in device 100 to process with input stable further in the 2nd transport pipe 19.
As shown in Figure 1, the supplementary feed channel 21 that e Foerderanlage 15 comprises transport pipe 20 and connects with transport pipe 20. In the present embodiment, transport pipe 20 is arranged on the downstream of storing device 12, and it has offered entrance 22 and outlet 23. This entrance 22 is connected with the first and second feeding pipes 18,19 respectively with outlet 23 and the gas-solid mixture from the first feeding pipe 18 was carried feeding pipe 20 so that being delivered into device 100.
In the illustrated embodiment in which, transport pipe 20 comprises expansion section 24, contraction flow region 25 and is arranged on middle portion 26 between expansion section 24 and contraction flow region 25 and coupled. Above-mentioned entrance 22 has been offered in expansion section 24. Contraction flow region 25 has offered above-mentioned outlet 23. In some instances, expansion section 24 and contraction flow region 25 have truncated conical shape respectively. Centre portion 26 can have cylindrical shape. In other examples, expansion section 24, contraction flow region 25 and centre portion 26 also can have other shapes, such as polygonal shape.
In non-limiting example, " expansion section " can refer to along from entrance 22 to the direction of outlet 23 or along the flow direction of gas-solid mixture in transport pipe 20, the diameter of expansion section 24 becomes big." contraction flow region " can refer to along from entrance 22 to the direction of outlet 23, the diameter of contraction flow region 25 reduces. In some instances, the diameter at least one cross section of expansion section 24 can be greater than the diameter of the first feeding pipe 18. The diameter at least one cross section of contraction flow region 25 also can be greater than the diameter of the 2nd feeding pipe 19. In a non-limiting example, the diameter in centre portion 26 can be greater than the diameter at least one cross section of expansion section 24 and contraction flow region 25 respectively. The diameter of the first feeding pipe 18 and the 2nd feeding pipe 19 can close to or identical.
In some applications, supplement feed channel 21, by entrance 28, supplementary gas 27 is inputted the conveying promoting solid powder in transport pipe 20 in transport pipe 20. In the embodiment shown in fig. 1, supplementing feed channel 21 and be arranged in centre portion 26 and extend in transport pipe 20, its outlet 29 can extend in the space that contraction flow region 25 defines. In one example, at least partially supplement feed channel 21 can extend towards the outlet 23 of transport pipe 20, thus export 29 near with outlet 23. In other examples, supplement feed channel 21 and also can be arranged on expansion section 24 and contraction flow region 25 and extend towards outlet 23.
Like this, entered in the process of feeding pipe 20 by entrance 22 at the gas-solid mixture from the first feeding pipe 18, at expansion section 24 place, due to the increase in the space that expansion section 24 defines, the speed from the gas in the gas-solid mixture of the first feeding pipe 18 will reduce; Wherein the speed of solid can be similar to the speed of the gas-solid mixture from the first feeding pipe 18. Like this, in gas-solid mixture, gas just can be separated with solid powder at least partially at least partially, thus, from the flow-pattern of the gas-solid mixture of the first feeding pipe 18, such as unstable flow-pattern just has been undertaken by expansion section 24 changing or adjustment.
In certain embodiments, centre portion 26 can be used as buffer part, thus the gas in gas-solid mixture can adjust the flow-pattern of gas-solid mixture with solid powder since being separated further. At contraction flow region 25 place, due to reducing of its space, the flow velocity of divided gas flow increases towards the direction of outlet 23, and again mixes with solid powder and deliver solid powder. In addition, supplement feed channel 21 by its outlet 29, supplementary gas 27 to be inputted in contraction flow region 25 with the flow velocity of further increase gas to mix with solid powder. Like this, along with the adjustment of e Foerderanlage 15, gas and solid powder just can Homogeneous phase mixing to form the gas-solid mixture with steady flow form.
Therefore, the gas-solid mixture carrying out self-conveying apparatus 15 just can be uniform and stable enter the 2nd transport pipe 19 carry in device 100 by exporting 23. With flow-pattern before such as, the piston flow of the gas-solid mixture in the first transport pipe 18 is compared, due to the Accommodation of e Foerderanlage 15, it is all even stable that the flow velocity of solid powder becomes, thus from the flowing of the gas-solid mixture in this e Foerderanlage 15 also become accordingly all even stable. In non-limiting example, similar to carrier gas 17, supplement gas 27 and also can comprise carbonic acid gas, rare gas element such as one or more in nitrogen and other suitable gas.
Embodiment shown in Fig. 1 is only schematic. In the embodiment shown in fig. 1, a make-up gas pipeline 21 it is provided with. In other embodiments, it is possible to more than one make-up gas pipeline is set. In certain application, extra gas pipeline (not shown) also can be arranged on the first feeding pipe 18 to input gas in the first feeding pipe 18 to the concentration of the solid powder that adjusts in it.Although being wholely set in the present embodiment, expansion section 24, contraction flow region 25 and centre portion 26 also can arrange to be installed together respectively.
In some instances, carrier gas 17 and supplementary gas 27 can come from identical or different gas sources. , in the illustrated embodiment, in addition feeding pipe 14 and/or transport pipe 20 can be arranged on and vertically arrange above device 100 and relative to horizontal direction. In other application, longitudinal axis of feeding pipe 14 and/or transport pipe 20 can be able to be in from the scope of 70 degree to 90 degree with the angle of horizontal direction.
Fig. 2 show the schematic diagram of an embodiment of subject delivery system 10 operating process 30. As shown in Figure 2, during conveying, in step 31, the solid powder 16 with desired size distribution coming from solid powder material source (not shown) is transfused in storing device 21. In the step 32, carrier gas 17 is entered in storing device 12 by carrier gas channel 13 to mixing to form gas-solid mixture and to increase the pressure in storing device 21 with solid powder 16. In some instances, the order of step 31 and step 32 can change. Step 31 can before step 32, carry out afterwards or simultaneously.
Along with carrier gas 17 enters in storing device 12, the pressure in it can be increased to the pressure of expectation. In an embodiment, the pressure of this expectation is higher than the pressure in device 100, thus poor at mineralization pressure therebetween. Gas-solid mixture in this pressure difference promotion storing device 12 moves towards device 100 and offsets the pressure drop that gas-solid mixture produces at course of conveying.
In step 33, after the pressure in storing device 12 reaches the pressure of expectation, gas-solid mixture is entered in e Foerderanlage 15 by the first feeding pipe 18 being connected with storing device 21 with e Foerderanlage 15 and adjusts. In this step, from the gas-solid mixture of the first feeding pipe 18 successively by expansion section 24, centre portion 26 and contraction flow region 25. Therebetween, supplement gas 27 and enter contraction flow region 25 to impel the conveying of solid powder.
In some applications, inputting the flow velocity into the supplementary gas 27 in contraction flow region 25 can higher than the flow velocity of the carrier gas 17 in transport pipe 20. In non-limiting example, the ratio of the flow of the carrier gas 17 in the flow of the supplementary gas 27 in make-up gas pipeline 21 and the first carrier pipe to 18 can be in from the scope of 0.2 to 1. The flow velocity of the gas in the 2nd feeding pipe 19 can be in the scope from 20 meters/second to 40 meters/second.
Like this, owing to e Foerderanlage 15 is to the Accommodation of the gas-solid mixture from the first feeding pipe 18, it is even that the flowing of solid powder becomes, and gas and solid powder can Homogeneous phase mixing, thus the flowing coming from the gas-solid mixture after the adjustment of e Foerderanlage 15 become uniform and stable. In step 34, the gas-solid mixture coming from the adjustment of e Foerderanlage 15 enters in vapourizing furnace 100 and gasifies.
In embodiments of the present invention, delivery system 10 is provided with the flowing that the gas-solid mixture from feeding pipe 14 stablized by e Foerderanlage 15. E Foerderanlage 15 has adjusted the flowing of gas-solid mixture since comprising make-up gas pipeline 21 and being provided with the transport pipe 30 of expansion section 24, centre portion 26 and contraction flow region 25. Like this, through the adjustment of e Foerderanlage 25, it is uniform and stable that the flow velocity of solid powder becomes, thus the flowing coming from the gas-solid mixture of e Foerderanlage 15 also become accordingly uniform and stable so that access to plant 100 to process.This provides for improved device 100, the performance and used life of such as vapourizing furnace. Compared with traditional delivery system, the embodiment of the present invention has relatively simple structure, and lower cost can be utilized conventional delivery systems to be transformed.
Although describing the present invention in conjunction with the specific embodiments, but it will be appreciated by those skilled in the art that, the present invention can be made many amendments and modification. Therefore, it will be appreciated that the intention of claim book is all these amendment and modification of covering in true spirit of the present invention and scope.

Claims (16)

1. an e Foerderanlage for air conveying solid powder, comprising:
Offering the transport pipe of entrance and exit, this transport pipe comprises:
Expansion section, it has offered described entrance;
Contraction flow region, it has offered described outlet; And
Centre portion, its be arranged between expansion section and contraction flow region and with its fluid communication;
This transport pipe is adjusted to the uniform and stable gas-solid mixture of flowing for the uneven gas-solid mixture of flowing received by entrance, and gasifies by exporting to be delivered in vapourizing furnace gas-solid mixture uniform and stable for described flowing;
Wherein this entrance is by the first feeding pipe and feeding unit fluid communication, and this gas-solid mixture flows with the form of piston flow in the first feeding pipe.
2. e Foerderanlage as claimed in claim 1, it is characterised in that: this outlet and the 2nd feeding pipe fluid communication, this outlet is used for being delivered in vapourizing furnace gas-solid mixture uniform and stable for described flowing by the 2nd feeding pipe gasifying.
3. e Foerderanlage as claimed in claim 2, it is characterised in that: the diameter at least one cross section in described middle portion is greater than the diameter at least one cross section of at least one in described expansion section and contraction flow region.
4. e Foerderanlage as claimed in claim 1, it is characterised in that: this e Foerderanlage also comprises:
Supplementing feed channel, this supplementary feed channel is arranged in the portion of centre and extends in transport pipe, and the outlet of this supplementary feed channel is arranged in contraction flow region.
5. e Foerderanlage as claimed in claim 2, it is characterized in that: this transport pipe is arranged on and vertically arranges above vapourizing furnace and relative to horizontal direction, this first feeding pipe and the 2nd transport pipe are arranged on and vertically arrange above vapourizing furnace and relative to horizontal direction.
6. e Foerderanlage as claimed in claim 1, it is characterised in that: this e Foerderanlage also comprises:
Storing device, this entrance is by storing device and feeding unit fluid communication, and this entrance is by the first feeding pipe and storing device fluid communication;
This storing device is provided with carrier gas channel, and this carrier gas channel makes the pressure in storing device be increased to the pressure of expectation for carrier gas is inputted storing device, and the pressure of this expectation is greater than the pressure in vapourizing furnace.
7. a delivery system for air conveying solid powder, comprising:
Feeding unit;
Transport pipe, it is arranged at the downstream of feeding unit and is connected with it, and this transport pipe comprises:
Expansion section, it has offered entrance;
Contraction flow region, it has offered outlet; And
Centre portion, its be arranged between expansion section and contraction flow region and with its fluid communication; And
First feeding pipe, it is arranged between feeding unit and the entrance of transport pipe;
This transport pipe is adjusted to the uniform and stable gas-solid mixture of flowing for the uneven gas-solid mixture of flowing received by entrance, and gasifies by exporting to be delivered in vapourizing furnace gas-solid mixture uniform and stable for described flowing;This gas-solid mixture flows with the form of piston flow in the first feeding pipe.
8. delivery system as claimed in claim 7, it is characterized in that: the diameter of described expansion section increases the rate reduction made from the gas in the gas-solid mixture of the first feeding pipe along direction from the inlet to the outlet, the diameter of described contraction flow region makes the flow velocity from the gas in the gas-solid mixture of the first feeding pipe increase along direction reduction from the inlet to the outlet; The diameter at least one cross section in described middle portion is greater than the diameter at least one cross section of at least one in expansion section and contraction flow region.
9. delivery system as claimed in claim 7, it is characterised in that: this delivery system also comprises:
Supplementing feed channel, this supplementary feed channel is arranged in the portion of centre and extends in transport pipe, and the outlet of this supplementary feed channel is arranged in contraction flow region.
10. delivery system as claimed in claim 7, it is characterised in that: this delivery system also comprises:
Storing device, this entrance is by storing device and feeding unit fluid communication, and this entrance is by the first feeding pipe and storing device fluid communication;
This storing device is provided with carrier gas channel, and this carrier gas channel makes the pressure in storing device be increased to the pressure of expectation for carrier gas is inputted storing device, and the pressure of this expectation is greater than the pressure in vapourizing furnace.
11. delivery systems as claimed in claim 7, it is characterised in that: this delivery system comprises the 2nd feeding pipe further, and the 2nd feeding pipe is arranged at transport pipe downstream and is connected with transport pipe by the outlet of contraction flow region.
12. delivery systems as claimed in claim 11, it is characterised in that: the diameter at least one cross section of this expansion section is greater than the diameter of the first feeding pipe; The diameter at least one cross section of this contraction flow region is greater than the diameter of the 2nd feeding pipe.
The carrying method of 13. 1 kinds of air conveying solid powders, comprising:
Solid powder from feeding unit is conveyed into storing device;
Delivery of carrier gas enters storing device to be mixed to form gas-solid mixture mutually with solid powder;
Gas-solid mixture from storing device is conveyed into the first feeding pipe;
Inputting in it by the entrance of e Foerderanlage by the gas-solid mixture from the first feeding pipe, the supplementary feed channel that wherein e Foerderanlage comprises transport pipe and is connected with this transport pipe, transport pipe comprises:
Expansion section, it has offered described entrance;
Contraction flow region, it has offered outlet; And
Centre portion, its be arranged between expansion section and contraction flow region and with its fluid communication; And
The uneven gas-solid mixture of flowing received by entrance is adjusted to the uniform and stable gas-solid mixture of flowing, and exports the uniform and stable gas-solid mixture of described flowing by outlet; This gas-solid mixture flows with the form of piston flow in the first feeding pipe.
14. carrying methods as claimed in claim 13, it is characterised in that: this carrying method is included in after the described gas-solid mixture adjusted is transferred out e Foerderanlage further, by the 2nd feeding pipe it is delivered in vapourizing furnace and gasifies.
15. carrying methods as claimed in claim 13, it is characterised in that: the described step carrying out adjusting in the gas-solid mixture input e Foerderanlage of storing device comprises:
Along with gas-solid mixture enters in e Foerderanlage, in expansion section, the gas at least partially in gas-solid mixture is separated with solid powder;And
At contraction flow region, mix and carry described gas and solid powder.
16. carrying methods as claimed in claim 13, it is characterised in that: this carrying method also comprises:
By supplementary feed channel, supplementary gas is inputted contraction flow region and to mix with solid powder and carry this solid powder; This supplementary feed channel is arranged in the portion of centre and extends in transport pipe, and the outlet of this supplementary feed channel is arranged in contraction flow region.
CN201610165219.6A 2011-06-14 2011-06-14 Conveying device, conveying system and conveying method Pending CN105647589A (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201610165219.6A CN105647589A (en) 2011-06-14 2011-06-14 Conveying device, conveying system and conveying method

Related Parent Applications (1)

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CN2011101586172A Division CN102827643A (en) 2011-06-14 2011-06-14 Conveying apparatus, system and method

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Publication Number Publication Date
CN105647589A true CN105647589A (en) 2016-06-08

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108709196A (en) * 2018-08-10 2018-10-26 徐州燃烧控制研究院有限公司 A kind of Geldart-D particle boiler coal-ash combustion system
CN109207203A (en) * 2017-06-30 2019-01-15 神华集团有限责任公司 Gasification furnace and its feeding device, burner and solid fuel dispenser

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2268976A (en) * 1992-07-21 1994-01-26 Erwin Schulze Flow accelerating device for a pipe duct.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2268976A (en) * 1992-07-21 1994-01-26 Erwin Schulze Flow accelerating device for a pipe duct.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109207203A (en) * 2017-06-30 2019-01-15 神华集团有限责任公司 Gasification furnace and its feeding device, burner and solid fuel dispenser
CN109207203B (en) * 2017-06-30 2020-07-31 神华集团有限责任公司 Gasification furnace and feeding device, burner and solid fuel distributor thereof
CN108709196A (en) * 2018-08-10 2018-10-26 徐州燃烧控制研究院有限公司 A kind of Geldart-D particle boiler coal-ash combustion system
CN108709196B (en) * 2018-08-10 2024-04-26 徐州燃烧控制研究院有限公司 Pulverized coal combustion system of pneumatic conveying boiler

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