CN2703967Y - Adjustable thick phase coal-ash transfering apparatus - Google Patents
Adjustable thick phase coal-ash transfering apparatus Download PDFInfo
- Publication number
- CN2703967Y CN2703967Y CN 200420016000 CN200420016000U CN2703967Y CN 2703967 Y CN2703967 Y CN 2703967Y CN 200420016000 CN200420016000 CN 200420016000 CN 200420016000 U CN200420016000 U CN 200420016000U CN 2703967 Y CN2703967 Y CN 2703967Y
- Authority
- CN
- China
- Prior art keywords
- coal
- ash
- adjustable
- flow guiding
- mouth
- 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.)
- Expired - Fee Related
Links
- 239000010883 coal ash Substances 0.000 title abstract 9
- 239000003245 coal Substances 0.000 claims abstract description 20
- 239000002817 coal dust Substances 0.000 claims description 14
- 239000003595 mist Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 5
- 238000007664 blowing Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 239000011148 porous material Substances 0.000 abstract 2
- 238000005273 aeration Methods 0.000 abstract 1
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 239000007921 spray Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Nozzles (AREA)
Abstract
The utility model relates to the coal-ash transferring apparatus of a blast furnace, and more specifically is an adjustable thick phase coal-ash transferring device, comprising a coal-ash flow guiding chamber, a flow guiding eduction tube connected with the coal-ash flow guiding chamber, an adjustable loose material guiding mouth between the flow guiding eduction tube and the coal-ash flow guiding chamber, a mixed air leading-in device with an air inlet pipe, and a mixed jet current guiding mouth connected with the leading-in device. An air coal adjusting pore plate with adjusting pores is fastened between the mixed air leading-in device and the mixed jet current guiding mouth. Compared with prior art, the utility model has the advantages of simple structure, convenient installation, and low cost. The adjustable thick phase coal-ash transferring device can accurately and conveniently adjust aeration quantity and coal-ash blowing quantity, and blowing concentration can reach 40-100kg/kg air. The adjustable thick phase coal-ash transferring device is suited to various big, middle and small blast furnaces.
Description
Technical field
The utility model relates to the coal dust conveying device of blast furnace, is specially adjustable dense phase pulverized coal conveyer.
Background technology
In prior art, the patent No. be 91108844.X patent disclosure a kind of pulverized coal injection with adjustable coal dust batcher, it is provided with upright chamber at housing bottom, the sleeve pipe of its material inlet adopts the two ends fixed structure, with center-pole good concentricity is arranged, the drive unit of material inlet adopts a synchronous motor to drive the numerical control cylinder, turns down or opens greatly with control coal dust material inlet opening, the output of material inlet is reduced thereupon or increases.Its shortcoming is: 1, complex structure, cost are higher, and mechanical driving part is arranged, and have strengthened the plant maintenance dynamics, and equipment failure rate is higher.2, be difficult for realizing high high-density coal injection, winding-up concentration only is 20-30Kg/Kg gas, far can not adapt to the needs of high high-density coal injection technical development.
Summary of the invention
The utility model solves existing adjustable dense phase pulverized coal transport conveyor constructions complexity, cost height, is difficult for realizing the problem of high high-density coal injection, provide a kind of simple in structure, easy for installation, cost is low, can realize the cuttings conveyer of high high-density coal injection.
The utility model is to adopt following technical scheme to realize: adjustable dense phase pulverized coal conveyer, comprise that adjustable loose metal between coal dust diversion chamber, the water conservancy diversion fairlead that communicates with coal dust diversion chamber, water conservancy diversion fairlead and the coal dust diversion chamber is led mouth, had the mist inducting device of air inlet pipe, the mixing jet that connects with inducting device is led mouth, leading between the mouth clamping at mist inducting device and mixing jet has and has the gas coal amount of regulating aperture on it and regulate orifice plate.During use, coal dust enters the mist inducting device by diversion chamber, sprays into mixing jet by the adjusting orifice plate again and leads mouth; Part compressed air is led mouth by adjustable loose metal and is entered diversion chamber, to improve coal dust spray property; Part compressed air enters the mist inducting device by air inlet pipe, and again from the ejection of the aperture of adjustable plate, its jet-stream wind produces negative pressure greatly in mixing jet is led mouth, with the pulverized coal particle injection to blast furnace.During design, can determine to regulate the quantity of aperture on the orifice plate and the size in aperture according to the injecting coal quantity size, in the use, can be according to the injecting coal quantity size by regulating bolt adjustment hole size, to realize high-density coal injection.
The utility model compared with prior art, have simple in structure, easy for installation, cost is low, can make things convenient for accurately to regulate throughput and coal powder blowing amount, the winding-up concentration can reach 40-100Kg/Kg gas.Be applicable to various large, medium and small blast furnaces.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
The specific embodiment
Adjustable dense phase pulverized coal conveyer, comprise that adjustable loose metal between coal dust diversion chamber 6, the water conservancy diversion fairlead 2 that communicates with coal dust diversion chamber, water conservancy diversion fairlead and the coal dust diversion chamber is led mouth 4, had the mist inducting device 7 of air inlet pipe 5, the mixing jet that connects with the mist inducting device is led mouth 3, leading between the mouth 3 clamping at mist inducting device 7 and mixing jet has and has the gas coal amount of regulating aperture on it and regulate orifice plate 1.
Adopt flange to connect between each component parts of this conveyer.
Claims (1)
1, a kind of adjustable dense phase pulverized coal conveyer, the mixing jet that adjustable loose metal between water conservancy diversion fairlead (2), water conservancy diversion fairlead and the coal dust diversion chamber that comprise coal dust diversion chamber (6), communicates with coal dust diversion chamber leads mouth (4), have the mist inducting device (7) of air inlet pipe (5), connect with the mist inducting device is led mouth (3), it is characterized by: leading between the mouth (3) clamping at mist inducting device (7) and mixing jet has and has the gas coal amount of regulating aperture on it and regulate orifice plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420016000 CN2703967Y (en) | 2004-04-01 | 2004-04-01 | Adjustable thick phase coal-ash transfering apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420016000 CN2703967Y (en) | 2004-04-01 | 2004-04-01 | Adjustable thick phase coal-ash transfering apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2703967Y true CN2703967Y (en) | 2005-06-08 |
Family
ID=34768874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420016000 Expired - Fee Related CN2703967Y (en) | 2004-04-01 | 2004-04-01 | Adjustable thick phase coal-ash transfering apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2703967Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103180668A (en) * | 2010-10-29 | 2013-06-26 | 通用电气公司 | Backmixing unit for pneumatic conveying systems |
-
2004
- 2004-04-01 CN CN 200420016000 patent/CN2703967Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103180668A (en) * | 2010-10-29 | 2013-06-26 | 通用电气公司 | Backmixing unit for pneumatic conveying systems |
| US8985912B2 (en) | 2010-10-29 | 2015-03-24 | General Electric Company | Back mixing device for pneumatic conveying systems |
| CN103180668B (en) * | 2010-10-29 | 2016-10-19 | 通用电气公司 | Backmixing unit for pneumatic conveying systems |
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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: 20050608 Termination date: 20120401 |