CN201520551U - Bottom discharge powder fluidization conveyor - Google Patents
Bottom discharge powder fluidization conveyor Download PDFInfo
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- CN201520551U CN201520551U CN2009201722141U CN200920172214U CN201520551U CN 201520551 U CN201520551 U CN 201520551U CN 2009201722141 U CN2009201722141 U CN 2009201722141U CN 200920172214 U CN200920172214 U CN 200920172214U CN 201520551 U CN201520551 U CN 201520551U
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- fluidisation
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- air compensation
- compensation regulator
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Abstract
The utility model discloses a bottom discharge powder fluidization conveyor, which is positioned at the lower part of a baiting spherical valve (2) below a powder conveying system bucket (1) and comprises a fluidistor housing (13), a housing end cap (8) and a fluidization plate (11) arranged between the fluidistor housing (13) and the housing end cap (8); an air supplement regulator is further arranged on the fluidistor housing (13); one end of the air supplement regulator is directly and fixedly connected with one side of the fluidistor housing (13), and the other end thereof is connected with a powder conveying pipeline (5); the air supplement regulator is formed by a housing (3), a central guide pipe (4) and an air supplement guide pipe (7), wherein the inlet end of the central guide pipe (4) is communicated with a fluidization chamber (12) so as to serve as the conveying pipeline of the fluidization powder; and the supplemented air is jet out under a high speed through the air supplement guide pipe (7), and the formed ring-shaped injection airflow at the outlet of the central guide pipe (4) guides the conveying of the powder. The device has the advantages of compact structure and convenient inspection and repair, and further improves the convey efficiency and convey quantity of powder, and reduces the running cost.
Description
Technical field
The utility model relates to powder fluidization feedway in a kind of powder delivery system, particularly a kind of bottom discharge fluidisation feedway that is used for other powdery media such as Ferrous Metallurgy industry stove, kiln winding-up powder and cement.
Background technology
At present, there is multiple pattern in the structure that is applied to powder fluidisation feedway, and its characteristics are had nothing in common with each other, and generally speaking, top discharge mode and bottom discharge mode is arranged.What generally adopt at present is the top discharge mode, and the fluidisation that particularly is applied to pulverized coal injection in blast furnace in the metallurgical industry is carried.Its specific practice is in a winding-up jar bottom fluidisation plate (bed) to be set, and has one on fluidisation plate (bed) top with being with the defeated material of bell-mouthed powder conduit, by the fluidizing gas of fluidisation plate, after the powder fluidization, again by being with bell-mouthed conveying pipeline to transfer out.Like this, powder can experience once process from top to bottom in fluidisation is carried, this dependence be the enough pressure of batch can, simultaneously, the resistance that has also increased a pipeline in this process is decreased.
Under the situation of this external blast furnace big coal injection amount, following several bottom discharge mode powder transfer devices of available technology adopting also exist certain technological deficiency and deficiency.
(1) in the metallurgical industry, be applied to the spiral coal feeder of the defeated coal of normal pressure, adopted on small blast furnace, carry because it can only be used for the normal pressure coal powder injection, be difficult to improve the winding-up amount of coal dust, increase with spiral wear, transport efficiency descends, and is eliminated at present.
(2) some its making-up air device of powder fluidisation device feedway is independent of outside the fluidizer, and the equipment on the batch can outlet conduit is more, and inconvenience is installed, overhauled to the layout complexity.
(3) Chinese patent specification sheets 200320101499.2 disclosed a kind of fluidization coal powder injection mixer apparatus, this device is in mixer, be provided with a central-injection pipe, the high pressure draft in the jet pipe forms the injection air-flow and produces negative pressure in the exit, drives coal dust and travels forward.This device is existing the application in the blast-furnace coal powder injection system, but finds that in application its required jet-stream wind pressure drop is bigger, and the negative pressure region of generation is less, and the raising of defeated powder efficient is limited.
The utility model content
The utility model purpose is to overcome the shortcoming that exists in the above-mentioned prior art, a kind of defeated powder efficient height, simple in structure, compact in design is provided and can realizes the novel bottom discharge formula powder fluidisation feedway of big coal injection amount.
For realizing described order, the utility model bottom discharge formula powder fluidisation feedway is positioned at the bottom of powder delivery system batch can below blanking ball valve, comprise fluidisation device housing, housing end plug and fluidisation plate, the fluidisation plate is located between fluidisation device housing and the housing end plug, make and form two chambers between fluidisation device housing and the housing end plug, wherein fluidisation plate upper chamber is a powder fluidising chamber, the below chamber is the fluidisation air chamber, the fluidizing gas conduit is set on housing end plug, its structural feature is: also be provided with an air compensation regulator on fluidisation device housing, one end of air compensation regulator is directly captiveed joint with fluidisation device housing one side, and the other end of air compensation regulator is connected to pulverized coal feed pipe.
Described air compensation regulator is made up of shell, centre pipe and tonifying Qi conduit, and wherein, centre pipe is located at air compensation regulator chamber center, and the arrival end of centre pipe communicates with fluidising chamber, and the fluidisation powder is carried by centre pipe; The tonifying Qi conduit is arranged on the shell of air compensation regulator; Space between the housing of centre pipe and the shell of air compensation regulator is a ring casing, has been full of the gas by the input of tonifying Qi conduit in the ring casing.
Compared with prior art its advantageous effect is as follows for the utility model powder fluidisation feedway:
1,, powder fluidisation and tonifying Qi carried be integrated in one, so it is simple in structure, compact in design, manufacturing installation and maintenance make things convenient for because the utility model is on fluidisation device housing air compensation regulator to be set directly.
2, the centre pipe arrival end owing to air compensation regulator communicates with fluidising chamber, the fluidisation powder is carried by centre pipe, then be full of gas in the ring casing by the input of tonifying Qi conduit, like this by changing the tonifying Qi regulative mode, mend the gas of going into and form the high-speed annular jet in the centre pipe exit end outside, and then the negative pressure that forms big zone in powder gas intersection, guide the conveying of powder.Because of the increase of negative pressure region, more help the conveying of powder, thereby improved transport efficiency.For bf coal injection system, present technique can realize the big coal injection amount equally.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the structural representation of the utility model bottom discharge formula powder fluidisation feedway.
The specific embodiment
As shown in Figure 1, the utility model bottom discharge formula powder fluidisation feedway is positioned at the bottom of the blanking ball valve 2 of powder delivery system batch can 1 below, comprise fluidisation device housing 13, housing end plug 8 and fluidisation plate 11, fluidisation device housing 13 is connected on the lower flange of blanking ball valve 2 by bolt with flange.Fluidisation plate 11 is located between fluidisation device housing 13 and the housing end plug 8, makes to form two chambers between fluidisation device housing 13 and the housing end plug 8, and wherein fluidisation plate upper chamber is a powder fluidising chamber 12, and the below chamber is a fluidisation air chamber 9; Fluidizing gas conduit 10 is set on housing end plug 8.Be provided with an air compensation regulator on fluidisation device housing 13, an end of air compensation regulator is directly captiveed joint with fluidisation device housing 13 1 sides, and the other end of air compensation regulator is connected to pulverized coal feed pipe 5.Adopt the bolt with flange thread connection between pulverized coal feed pipe 5 and the air compensation regulator shell 3.
Described air compensation regulator is made up of shell 3, centre pipe 4 and tonifying Qi conduit 7, and wherein centre pipe 4 is located at air compensation regulator cavity center, and the arrival end of centre pipe 4 communicates with fluidising chamber 12, and the fluidisation powder is carried by centre pipe 4; Tonifying Qi conduit 7 is arranged on the shell 3 of air compensation regulator; Space between the housing of centre pipe 4 and the shell of air compensation regulator 3 is a ring casing 6, has been full of the gas by 7 inputs of tonifying Qi conduit in the ring casing 6.
Above-mentioned powder fluidisation feedway, batch can 1 wherein, blanking ball valve 2 and fluidisation device housing 13 three's line of centerss are positioned at same central axis, and the mode by bolt with flange, screw thread between this three connects, and adopts the seal ring sealing.
The working process of the utility model powder fluidisation feedway is as follows: when pellet valve 2 is opened instantly, powder in the batch can 1 is under the effect of pressure and gravity, powder enters in the fluidising chamber 12, and fluidizing gas is from being arranged on fluidized gas conduit 10 inputs on the housing end plug 8 simultaneously.Fluidizing gas passes fluidisation plate 11 backs the powder in its fluidising chamber 12 is carried out fluidisation, is fluidised powder directly enters air compensation regulator under batch can 1 pressure effect centre pipe 4; And the gas that benefit is gone into forms ring-type injection air-flow through tonifying Qi conduit 7 ejection at a high speed in centre pipe 4 exits, produces local decompression, and circularizes zone of negative pressure, and negative pressure region is relatively large and stable, and the powder that attraction is fluidized enters pulverized coal feed pipe 5 and outwards exports.Because the increase of negative pressure region more helps the conveying of powder, thereby improve transport efficiency.The benefit of pressure, fluidized gas and air compensation regulator by regulating batch can 1 is gone into gas flow and is regulated the concentration of carrying powder.
The utility model powder fluidisation feedway is under for many years design and practical experience instruct powder fluidization technique and tonifying Qi conveying technology to be carried out organic combination.This installs not only compact conformation, practical reliable, maintenance convenience, but also has improved the transport efficiency and the operational throughput of powder, has reduced operating cost.
Claims (3)
1. bottom discharge formula powder fluidisation feedway is positioned at the bottom of the blanking ball valve (2) of powder delivery system batch can (1) below, comprises fluidisation device housing (13), housing end plug (8) and fluidisation plate (11); Fluidisation plate (11) is located between fluidisation device housing (13) and the housing end plug (8), makes to form two chambers between fluidisation device housing (13) and the housing end plug (8), and wherein fluidisation plate upper chamber is powder fluidising chamber (12), and the below chamber is fluidisation air chamber (9); Fluidizing gas conduit (10) is set on housing end plug (8), it is characterized in that: on fluidisation device housing (13), also be provided with an air compensation regulator, one end of air compensation regulator is directly captiveed joint with fluidisation device housing (13) one sides, and the other end of air compensation regulator is connected to pulverized coal feed pipe (5).
2. bottom discharge formula powder fluidisation feedway according to claim 1, it is characterized in that: described air compensation regulator is made up of shell (3), centre pipe (4) and tonifying Qi conduit (7), described centre pipe (4) is located at air compensation regulator cavity center, the arrival end of centre pipe (4) communicates with fluidising chamber (12), and the fluidisation powder is carried by centre pipe (4); Described tonifying Qi conduit (7) is arranged on the shell (3) of air compensation regulator; Space between the shell (3) of the housing of centre pipe (4) and air compensation regulator is ring casing (6), has been full of the gas by tonifying Qi conduit (7) input in the ring casing (6).
3. bottom discharge formula powder fluidisation feedway according to claim 1, it is characterized in that: described batch can (1), blanking ball valve (2) and fluidisation device housing (13) three's line of centers are positioned at same central axis, mode by bolt with flange, screw thread between this three connects, and adopts the seal ring sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201722141U CN201520551U (en) | 2009-05-22 | 2009-05-22 | Bottom discharge powder fluidization conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201722141U CN201520551U (en) | 2009-05-22 | 2009-05-22 | Bottom discharge powder fluidization conveyor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201520551U true CN201520551U (en) | 2010-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201722141U Expired - Fee Related CN201520551U (en) | 2009-05-22 | 2009-05-22 | Bottom discharge powder fluidization conveyor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201520551U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102951446A (en) * | 2012-11-09 | 2013-03-06 | 裕东（中山）机械工程有限公司 | Powder delivery device |
| CN102963728A (en) * | 2012-11-22 | 2013-03-13 | 裕东（中山）机械工程有限公司 | Powder conveyer device for driving venturi powder pump through pulse air |
| CN105492854A (en) * | 2013-06-17 | 2016-04-13 | 哈奇有限公司 | Feed flow conditioner for particulate feed materials |
-
2009
- 2009-05-22 CN CN2009201722141U patent/CN201520551U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102951446A (en) * | 2012-11-09 | 2013-03-06 | 裕东（中山）机械工程有限公司 | Powder delivery device |
| CN102951446B (en) * | 2012-11-09 | 2015-09-02 | 裕东（中山）机械工程有限公司 | A kind of powder conveying device |
| CN102963728A (en) * | 2012-11-22 | 2013-03-13 | 裕东（中山）机械工程有限公司 | Powder conveyer device for driving venturi powder pump through pulse air |
| CN105492854A (en) * | 2013-06-17 | 2016-04-13 | 哈奇有限公司 | Feed flow conditioner for particulate feed materials |
| EP3011244A4 (en) * | 2013-06-17 | 2017-02-22 | Hatch Ltd. | Feed flow conditioner for particulate feed materials |
| US9845992B2 (en) | 2013-06-17 | 2017-12-19 | Hatch, Ltd. | Feed flow conditioner for particulate feed materials |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100707 Termination date: 20140522 |