CN1915774A - Mechanism with multiple discharge ports for deliverying pressurized powder in thick phase - Google Patents
Mechanism with multiple discharge ports for deliverying pressurized powder in thick phase Download PDFInfo
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- CN1915774A CN1915774A CN 200610104483 CN200610104483A CN1915774A CN 1915774 A CN1915774 A CN 1915774A CN 200610104483 CN200610104483 CN 200610104483 CN 200610104483 A CN200610104483 A CN 200610104483A CN 1915774 A CN1915774 A CN 1915774A
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Abstract
A pressurizing delivering apparatus with multiple discharge ports for delivering the condensed powder has a powder pressurizing tank, which has a feeding inlet connected via valve to feeding pipeline, an air pressuring pipeline and a pressure balance pipeline on its lateral wall, lower fluidized wind pipe, two or more branch pipelines at the lower end of said pressurizing tank for delivering the power, and two or more loosening devices for said branch pipelines and communicated with N2 pipeline.
Description
Technical field
The invention belongs to the concentrated phase conveying technology field of powder material, be specifically related to a kind of powder pressurization transport device for dense phase of many discharging openings.
Technical background
The powder Pneumatic Conveying Technology is to utilize gas energy to carry a kind of method of powder material, so far the history in existing more than 100 year.Theory and practice proof powder Pneumatic Conveying Technology has the not available preceence of mechanical transport,, flexible arrangement simple as equipment, is easy to gather dust or the like, now is widely used in industries such as electric power, metallurgy, chemical industry, building materials, light industry, food.In general, the strength of coal dust and general particulate matter is carried and can both be realized that its flow pattern mainly is subjected to comprising the influence of some factor effects such as flowing velocity, particle size, gravity, and is the coefficient results of these factors in very wide flow pattern scope.It is to utilize air-flow to carry a kind of method of powder and granule shape material in pipeline that strength is carried, and all is used widely at industrial sectors such as electric power, metallurgy, chemical industry, building materials, light industry, food.The variation of its flow pattern mainly contains following several form: even dilute phase, inhomogeneous dilute phase, fixed bed, motion mound, bolt shape, concentrated phase.Do not have very clear and definite boundary between each flow pattern, when the physical property of coal dust that is transferred or particulate matter is determined, carry the flow velocity of gas just to become the biggest factor that influences its flow pattern.
Since the sixties, along with industrial expansion, researchers carry more and more interested to the concentrated phase strength.In this conveying, solid material is collected at together, is full of the cross section, many places of pipeline, and the shared volume share of solid also obviously increases, and simultaneously, air-flow velocity is lower, and the pressure drop on the unit pipe range is higher than corresponding dilute phase and carries.But gather state owing to particulate matter in the concentrated phase conveying is, forming the chance of stopping up in the pipeline also increases greatly.
The dense phase powder Pneumatic Conveying Technology is compared following advantage with dilute phase powder Pneumatic Conveying Technology: 1. carry solid-gas ratio big: to carry the required delivering gas amount of a certain amount of solid material less, in existing report, the conveying solid-gas ratio of some material is up to 500, and the gas solid separation amount is little; 2. gas phase and solid flow velocity in pipeline is little, and therefore, the wearing and tearing of delivery pipe and the breakage of material are all very little; 3. delivery system good stability, because gas requirement is little, diameter of conveying pipe is little, material flow is little, for the stability of system itself provides assurance; 4. system and device is simple, and maintenance is convenient, carries same coal dust amount, and its transfer line area of passage greatly reduces, and saves raw MAT'L, and cost is low; 5. system energy consumption is low.
In the recent period domestic many research units have produced very big interest to the concentrated phase Pneumatic Conveying Technology, and especially this technology relates in integrated gasification combined cycle for power generation technology and coal gasification, coal hydrogen manufacturing, the large-scale Coal Chemical Industry industry of coal system wet goods and carry the dry coal powder continuously and stably in the dry coal powder pressure gasifying device under the operating mode of pressurizeing.Colleges and universities such as domestic Xi'an hot working research institute, East China University of Science, Southeast China University and Iron and Steel Research Geueral Inst and scientific research institutions are all in active research and exploitation dry coal powder concentrated phase Pneumatic Conveying Technology.
The charging process of coal dust is to adopt the rotatory feeder valve device to carry out coal dust after the high pressure Pulverized Coal Bin to carry in the coal dust pressurized gasification process that East China University of Science is studied, this feedway with mechanical gyro units such as valve and screw feeders is unfavorable for that the powder continous-stable under the high pressure operating mode is carried.Southeast China University adopts extruding flow pattern Pneumatic conveyer, and pressurization coal supply magazine system adopts a cover lock hopper system, and normal pressure Pulverized Coal Bin, transformation powder storehouse and positive delivery powder storehouse are set, and device is set up the storehouse in the pressurization storehouse and pressed the back fluidisation, and top discharge is carried.What Iron and Steel Research Geueral Inst was taked is streaming tank single tube top discharge, regulates operational throughput by tonifying Qi.What Changzhou Hua Yuan power technology company adopted is many storehouses pump malleation concentrated phase Pneumatic conveyer, and the pressurization fluidisation inflated simultaneously by promptly a plurality of storehouses pump and a plurality of storehouses pump is carried simultaneously and pipeline blows stifled.
In sum, domestic existing dry coal powder concentrated phase Pneumatic conveyer structure more complicated, many devices are furnished with the feedway of mechanical gyro units such as valve and screw feeder, are unfavorable for that the powder under the high pressure operating mode is carried continuously; Adopt a plurality of storehouses pump to inflate simultaneously that the pressurization fluidisation is carried or a cover lock hopper system carries one road coal dust, make system complex, it is unreliable to move; Adopt lotus formula distributing box or dense phase pulverized coal distributing box, the disturbance that produces when the feed of pressurization storehouse directly produces bigger influence, reinforced homogeneity, continuity and poor stability, gasification furnace operating difficulties to lotus formula distributing box or dense phase pulverized coal distributing box; The existing feedway overwhelming majority can only one tunnel discharging, satisfy multipath discharging, must build many cover delivery systems, makes system very complicated, and cost is very high.
Summary of the invention
The objective of the invention is to overcome the shortcoming of above-mentioned prior art, provide a kind of dry coal powder concentrated phase strength that can solve in the dry coal powder pressure gasifying process to carry the powder pressurization transport device for dense phase of many discharging openings of problems such as easy obstruction, fluctuation of service.
For achieving the above object, the technical solution used in the present invention is: comprise the powder pressurized tank, the inlet point of powder pressurized tank is connected with the blanking pipeline, be characterized in, the sidewall of powder pressurized tank is provided with the gentle pressing weighing apparatus of the conveying gas punching press pipeline that is connected with powder pressurized tank pipeline, lower end in the powder pressurized tank also is provided with the fluidized wind pipeline, also be provided with two or more powder diverter branch transfer line on the lower end wall of powder pressurized tank, be respectively arranged with on the powder diverter branch transfer line and carry loosening device, carry loosening device also to be connected with nitrogen gas delivery-line.
Another characteristics of the present invention are: carry on the gentle pressing weighing apparatus of the gas punching press pipeline pipeline and also be provided with pressure pipeline control cock and balance pipe-line control valve; The lower end wall of powder pressurized tank also is provided with the fluidisation air distribution plate that is connected with the fluidized wind pipeline, and also is provided with the fluidized wind pipe-line control valve on the fluidized wind pipeline; Also be respectively arranged with the transfer line control cock on the pipeline between the loosening device of powder diverter branch transfer line and conveying; Carry also to be provided with on loosening device and the pipeline that nitrogen gas delivery-line is connected and become flexible the device control cock; The bottom of powder pressurized tank is provided with electronic scales; Also be provided with level-sensing device on the sidewall of powder pressurized tank; The discharging opening of powder diverter branch transfer line is out that on the sidewall of powder pressurized tank lower end, its angle becomes 49-135 degree angle with the tangent plane of wall.
The present invention utilizes two or more the powder shunting transfer line that is provided with on the wall of powder pressurized tank lower end to carry out concentrated phase and carries, do not take mechanical rotation device, thereby the shortcoming of having avoided adopting mechanical component can not continous-stable to carry powder is more suitable for carrying in the concentrated phase of high pressure powder; Be provided with the fluidized wind air distribution plate in powder pressurized tank bottom, the powder in the powder pressurized tank is become flexible, thereby in the course of conveying, be difficult for stopping up.This device has been realized the even conveying of multichannel powder, and whole process stability is good, each branch road operational throughput distributed uniform.
Evenly carry, whole process stability is good, each branch road operational throughput distributed uniform.
Description of drawings
Accompanying drawing is a structural representation of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing structural principle of the present invention and principle of work are described in further detail.
Referring to accompanying drawing, the present invention includes the bottom and be provided with the powder pressurized tank 4 that electronic scales 5 sidewalls are provided with level-sensing device 7, the inlet point of powder pressurized tank 4 is connected with blanking pipeline 2 by blanking control cock D5, the sidewall of powder pressurized tank 4 is provided with conveying gas punching press pipeline 1 and the air pressure balance pipeline 3 that is connected with powder pressurized tank 4, carry on gas punching press pipeline 1 and the air pressure balance pipeline 3 and also be provided with pressure pipeline control cock D1 and balance pipe-line control valve D7, be provided with fluidized wind pipeline 11 in the lower end of powder pressurized tank 4, the lower end wall of powder pressurized tank 4 also is provided with the fluidisation air distribution plate 10 that is connected with fluidized wind pipeline 11, and on fluidized wind pipeline 11, also be provided with fluidized wind pipe-line control valve D8, also be provided with two or more powder diverter branch transfer line 8 on the lower end wall of powder pressurized tank 4,9, powder diverter branch transfer line 8,9 discharging opening is out on powder pressurized tank 4 lower end sidewalls, its angle becomes 49-135 degree angle with the tangent plane of wall, powder diverter branch transfer line 8, be respectively arranged with on 9 and carry loosening device 6,7, powder diverter branch transfer line 8,9 with carry loosening device 6, also be respectively arranged with transfer line control cock D2 and D3 on the pipeline between 7, carry loosening device 6,7 also are connected with nitrogen gas delivery-line 13, carry loosening device 6,7 with pipeline that nitrogen gas delivery-line 13 is connected on also be provided with loosening device control cock D4 and D6.
Working process of the present invention is as follows: at first open blanking pipe-line control valve D5, from blanking pipeline 2 to 4 blankings of powder pressurized tank, the equalizing line control cock D7 that opens air pressure balance pipeline 3 simultaneously keeps the blanking equilibrium of pressure, after finishing, blanking closes blanking pipe-line control valve D5 and balance pipe-line control valve D7, open pressure pipeline control cock D1 then, utilization is closed pressure pipeline control cock D1 after carrying gas punching press pipeline 1 to be pressurized to suitable pressure for powder pressurized tank 4.Open powder conveying valve D2 and D3 and carry powder, open fluidized wind pipe-line control valve D8 simultaneously and make fluidized wind keep carrying steady and continuous to carry out through fluidized wind pipeline 11 and 10 air-supplies of fluidisation air distribution plate.The outlet of powder pressurized tank 4 is provided with diverter branch delivery duct 8,9, detects the variation of powder amount in the process by electronic scales 5 and level-sensing device 12.In this device operational process, open and regulate loosening device control cock D4, D6, coal dust is become flexible in loosening device, can not produce obstruction, guarantee to carry stable continuing.
The present invention can realize the two-way or the above feed of two-way of a covering device system, powder pressurized tank 4 utilizes fluidisation air distribution plate 10 to produce the method for local fluidization, with the homogeneity that guarantees that powder quality is distributed in each road feeder sleeve, the mass flow rate deviation of each branch road output is less than ± 5%.
This device is mainly used in the dry coal powder pressure gasifying device, the difficult obstruction in the course of conveying, and the coal dust conveying is continuous, steady, even, pulsation is little, has satisfied the requirement that the dry coal powder pressure gasifying apparatus system normally moves.This system is applicable to various powder pressurization concentrated phase conveying systems simultaneously.
Claims (8)
1, a kind of powder pressurization transport device for dense phase of many discharging openings, comprise powder pressurized tank (4), the inlet point of powder pressurized tank (4) is connected with blanking pipeline (2), it is characterized in that: the sidewall of powder pressurized tank (4) is provided with conveying gas punching press pipeline (1) and the air pressure balance pipeline (3) that is connected with powder pressurized tank (4), also be provided with fluidized wind pipeline (11) in the lower end of powder pressurized tank (4), also be provided with two or more powder diverter branch transfer line (8 on the lower end wall of powder pressurized tank (4), 9), powder diverter branch transfer line (8,9) be respectively arranged with on and carry loosening device (6,7), carry loosening device (6,7) also be connected with nitrogen gas delivery-line (13).
2, the powder of many discharging openings according to claim 1 pressurization transport device for dense phase is characterized in that: also be provided with pressure pipeline control cock (D1) and balance pipe-line control valve (D7) on said conveying gas punching press pipeline (1) and the air pressure balance pipeline (3).
3, the powder of many discharging openings according to claim 1 pressurization transport device for dense phase, it is characterized in that: the lower end wall of said powder pressurized tank (4) also is provided with the fluidisation air distribution plate (10) that is connected with fluidized wind pipeline (11), and also is provided with fluidized wind pipe-line control valve (D8) on fluidized wind pipeline (11).
4, the powder of many discharging openings according to claim 1 pressurization transport device for dense phase is characterized in that: also be respectively arranged with transfer line control cock (D2, D3) on the pipeline between the loosening device (6,7) of said powder diverter branch transfer line (8,9) and conveying.
5, the powder of many discharging openings according to claim 1 pressurization transport device for dense phase is characterized in that: said conveying become flexible also to be provided with on device (6,7) and the pipeline that nitrogen gas delivery-line (13) is connected and is become flexible device control cock (D4, D6).
6, the powder of many discharging openings according to claim 1 pressurization transport device for dense phase, it is characterized in that: the bottom of said powder pressurized tank (4) is provided with electronic scales (5).
7, the powder of many discharging openings according to claim 1 pressurization transport device for dense phase is characterized in that: also be provided with level-sensing device (7) on the sidewall of said powder pressurized tank (4).
8, the powder of many discharging openings according to claim 1 pressurization transport device for dense phase, it is characterized in that: the discharging opening of said powder diverter branch transfer line (8,9) is out that its angle becomes 45-135 degree angle with the tangent plane of wall on the sidewall of powder pressurized tank (4) lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610104483 CN1915774A (en) | 2006-08-07 | 2006-08-07 | Mechanism with multiple discharge ports for deliverying pressurized powder in thick phase |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610104483 CN1915774A (en) | 2006-08-07 | 2006-08-07 | Mechanism with multiple discharge ports for deliverying pressurized powder in thick phase |
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| CN1915774A true CN1915774A (en) | 2007-02-21 |
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| CN 200610104483 Pending CN1915774A (en) | 2006-08-07 | 2006-08-07 | Mechanism with multiple discharge ports for deliverying pressurized powder in thick phase |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323398B (en) * | 2008-07-18 | 2011-06-08 | 东南大学 | Pneumatic conveying bucket flow regulation apparatus and control method |
| CN102417111A (en) * | 2010-09-28 | 2012-04-18 | 通用电气公司 | Conveying system and method |
| CN102453551A (en) * | 2010-10-14 | 2012-05-16 | 通用电气公司 | Integration system and integration method for drying and gasifying solid fuel particles |
| US9266688B2 (en) | 2010-09-30 | 2016-02-23 | General Electric Company | Feed vessels and systems for pneumatically conveying solid particles |
| US9387997B2 (en) | 2010-11-08 | 2016-07-12 | General Electric Company | Pipelines and conveying methods |
| US9429273B2 (en) | 2012-05-03 | 2016-08-30 | General Electric Company | Vessel apparatus with flow control element |
| CN106190328A (en) * | 2015-05-05 | 2016-12-07 | 华东理工大学 | Powder body lock hopper pressurizing system and use its powder body lock hopper pressurising method |
| CN108317509A (en) * | 2018-03-15 | 2018-07-24 | 中国石油化工股份有限公司洛阳分公司工会委员会 | A kind of circulating fluidized bed boiler agstone feeding system |
| CN108946176A (en) * | 2017-05-19 | 2018-12-07 | 中国石化工程建设有限公司 | A kind of devices and methods therefor of catalyst safe transport between mutual exclusion environment |
| CN110437881A (en) * | 2018-05-02 | 2019-11-12 | 国家能源投资集团有限责任公司 | Discharging device and system for the granular material that gasifies |
-
2006
- 2006-08-07 CN CN 200610104483 patent/CN1915774A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323398B (en) * | 2008-07-18 | 2011-06-08 | 东南大学 | Pneumatic conveying bucket flow regulation apparatus and control method |
| CN102417111A (en) * | 2010-09-28 | 2012-04-18 | 通用电气公司 | Conveying system and method |
| US9266688B2 (en) | 2010-09-30 | 2016-02-23 | General Electric Company | Feed vessels and systems for pneumatically conveying solid particles |
| CN102453551A (en) * | 2010-10-14 | 2012-05-16 | 通用电气公司 | Integration system and integration method for drying and gasifying solid fuel particles |
| US9387997B2 (en) | 2010-11-08 | 2016-07-12 | General Electric Company | Pipelines and conveying methods |
| US9429273B2 (en) | 2012-05-03 | 2016-08-30 | General Electric Company | Vessel apparatus with flow control element |
| CN106190328A (en) * | 2015-05-05 | 2016-12-07 | 华东理工大学 | Powder body lock hopper pressurizing system and use its powder body lock hopper pressurising method |
| CN106190328B (en) * | 2015-05-05 | 2021-10-12 | 华东理工大学 | Powder lock hopper pressurizing system and powder lock hopper pressurizing method using same |
| CN108946176A (en) * | 2017-05-19 | 2018-12-07 | 中国石化工程建设有限公司 | A kind of devices and methods therefor of catalyst safe transport between mutual exclusion environment |
| CN108317509A (en) * | 2018-03-15 | 2018-07-24 | 中国石油化工股份有限公司洛阳分公司工会委员会 | A kind of circulating fluidized bed boiler agstone feeding system |
| CN110437881A (en) * | 2018-05-02 | 2019-11-12 | 国家能源投资集团有限责任公司 | Discharging device and system for the granular material that gasifies |
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Open date: 20070221 |