CN102134622B - Bell-less blast furnace distributing device - Google Patents
Bell-less blast furnace distributing device Download PDFInfo
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- CN102134622B CN102134622B CN201010100735A CN201010100735A CN102134622B CN 102134622 B CN102134622 B CN 102134622B CN 201010100735 A CN201010100735 A CN 201010100735A CN 201010100735 A CN201010100735 A CN 201010100735A CN 102134622 B CN102134622 B CN 102134622B
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- batch
- cloth
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- gas
- distributing
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- 239000000463 material Substances 0.000 claims abstract description 11
- 238000005303 weighing Methods 0.000 claims abstract description 5
- 239000004744 fabric Substances 0.000 claims description 38
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 239000003034 coal gas Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 abstract description 8
- 238000007599 discharging Methods 0.000 description 1
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Abstract
The invention discloses a bell-less blast furnace distributing device which comprises feeding bins, intermediate material tanks, distributing tanks, two gas up takes and a main gas duct, wherein the lower ends of the two gas up takes are connected with a furnace throat, the upper ends of the two gas up takes are communicated with the main gas duct, 4-12 distributing tanks are uniformly distributed on the periphery of the furnace throat, the outlets of the distributing tanks are positioned in the furnace throat, the top and the bottom of each distributing tank are respectively provided with a sealing valve, a gas pressure equalizing valve is arranged at the upper part of each distributing tank, the outlet of each distributing tank is connected with a shunt ring, each intermediate material tank is flexibly connected above the distributing tank, a weighing device is arranged at the upper part of each intermediate material tank, 2-3 feeding bins are vertically arranged above the furnace top, the feeding outlet at the lower part of each feeding bin is connected with a corresponding material tank through a pipeline, feeding devices are arranged on the pipelines between the intermediate material tanks and the feeding bins, and the lower parts of the feeding devices are flexibly communicated with the intermediate material tanks. When the top pressure reaches 1.0 MPa or higher, the bell-less blast furnace distributing device can ensure the sealing performance of the furnace top.
Description
Technical field:
The present invention relates to a kind of ironmaking equipment, especially is a kind of distribution device of blast furnace.
Technical background:
The present age, huge blast furnace was generally carried out no clock distribution device; No matter be and jar or string jar no a clock cloth, furnace charge is all managed directly to the discharging of furnace throat center by material, again by the even cloth of the swivel chute of furnace throat central lower below furnace throat; Though this device is than clock cloth good seal performance is arranged; But because the swivel chute of this device is outside stove, to control, if further improve blast furnace top pressure (from 0.25MPa---1.0MPa), boiler roof sealing is just very difficult.
Summary of the invention
For when blast furnace further improves top pressure, can solve the high top pressure operation sealing problem, can guarantee again to realize no clock cloth problem that the present invention provides a kind of blast furnace not have the clock distribution device.
The technical scheme that adopts:
A kind of blast furnace does not have the clock distribution device, comprises awarding feed bin, middle batch can, cloth batch can.Two gas up takes and a gas main, the lower end of two gas up takes is connected with furnace throat, and the upper end of two gas up takes is connected with gas main, and communicates.It is characterized in that described cloth batch can evenly arranges 4-12 at the furnace throat circumferential direction, the outlet of cloth batch can is positioned at furnace throat, looks furnace throat sectional area size and decides, and the furnace throat section area is big, and cloth batch can number is many.The top of each cloth batch can and bottom are equiped with seal valve respectively, and the coal gas pressure-balance valve is installed on cloth batch can top, and the outlet of each cloth batch can is connected with a flow splitter; Described each middle batch can is arranged on the top of cloth batch can, and corresponding one by one with the cloth batch can, connects with the mode that is flexible coupling each other, and middle batch can top is provided with weighing device.Award feed bin and be arranged on the furnace roof top; Be provided with 2-3; Awarding feed bin arranges with vertical direction; What each awarded the feed bin bottom awards material outlet through pipeline and corresponding middle batch can connection, and middle batch can and award on the pipeline between the feed bin setting and award glassware is communicated with middle batch can through the mode that is flexible coupling below awarding glassware.
It is leg-of-mutton flow splitter that the below of above-mentioned each cloth batch can is provided with a section.
Above-mentioned each cloth batch can exit diameter is between Φ 400-Φ 1000mm.
The invention has the advantages that: reach 1.0MPa or 1.0MPa when above in top pressure, can guarantee the sealing property of furnace roof.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the present invention.
Fig. 2 is the vertical view of Fig. 1.
Embodiment
A kind of blast furnace does not have the clock distribution device; Comprise that the lower end of awarding feed bin 1, middle batch can 2,3, two gas up takes 4 of cloth batch can and 5, two gas up takes 4 of a gas main is connected with furnace throat 6; The upper end of two gas up takes 4 is connected with gas main 5; And communicate, cloth batch can 3 is evenly arranged six at furnace throat 6 circumferential directions, and cloth batch can 3 exit diameters are 600mm.The top of each cloth batch can 3 and bottom are equiped with upper sealing valve 7 and lower seal valve 8 respectively, and the top of each cloth batch can is equipped with coal gas pressure-balance valve 9.Middle batch can 2 also is six, and is arranged on the top of cloth batch can 3, and corresponding one by one with cloth batch can 3, connects with the mode that is flexible coupling each other, and middle batch can 2 tops are equipped with weighing device 10.Award feed bin 1 and be arranged on the furnace roof top, layout quantity is two, awards feed bin 1 and arranges with vertical direction, and each is awarded feed bin 1 bottom and awards the material outlet through pipeline and corresponding middle batch can 2 connections.Be equipped with on batch can 2 and the corresponding pipeline of awarding between the feed bin 1 in the middle of each and award glassware 12.
Too high for fear of furnace charge heap point, under cloth batch can 3, to leave seal valve 8 certain distances and establish the annular flow splitter 11 of a circle, the flow splitter cross section is triangular in shape, can reduce the difference of altitude of charge level, improves the cloth uniformity coefficient.
During operation, will award the feed bin furnace charge respectively and be blended into middle batch can, after weighing reaches ratings, stop to award material through vibro-feeder.Close cloth batch can bottom shut off valve and seal valve, treat coal gas pressure release and low-pressure gas jar balance after, open upper sealing valve, load weighted furnace charge is discharged into the cloth batch can by middle batch can; Close upper sealing valve, wait lower seal valve to be opened, seal valve should be opened pressure-balance valve before opening; Make stock gas pressure and batch can internal pressure balance in the blast furnace, behind the ready to balance, control module is opened the lower seal valve; Behind the instruction issuing, open earlier lower seal valve and shut off valve, the furnace charge orientation of fixing a point is distributed in the stove.Then, reciprocal with above-mentioned program loop, six or more cloth batch cans can once be opened one by one, also can open simultaneously in batches.
Claims (3)
1. a blast furnace does not have the clock distribution device, comprises awarding feed bin, middle batch can, cloth batch can, two gas up takes and a gas main, and the lower end of two gas up takes is connected with furnace throat; The upper end of two gas up takes is connected with gas main, and communicates, and it is characterized in that described cloth batch can evenly arranges 4-12 at the furnace throat circumferential direction; Cloth batch can outlet is positioned at furnace throat, looks furnace throat sectional area size and decides, and the furnace throat section area is big; Cloth batch can number is many; The top of each cloth batch can and bottom are equiped with seal valve respectively, and the coal gas pressure-balance valve is installed on cloth batch can top, and the outlet of each cloth batch can is connected with a flow splitter; Described each middle batch can is arranged on the top of cloth batch can, and corresponding one by one with the cloth batch can, connects with the mode that is flexible coupling each other; Middle batch can top is provided with weighing device, awards feed bin and is arranged on the furnace roof top, is provided with 2-3; Awarding feed bin arranges with vertical direction; What each awarded the feed bin bottom awards material outlet through pipeline and corresponding middle batch can connection, and middle batch can and award on the pipeline between the feed bin setting and award glassware is communicated with middle batch can through the mode that is flexible coupling below awarding glassware.
2. a kind of blast furnace according to claim 1 does not have the clock distribution device, and it is leg-of-mutton flow splitter that the below that it is characterized in that described each cloth batch can is provided with a section.
3. a kind of blast furnace according to claim 1 does not have the clock distribution device, it is characterized in that said each cloth batch can exit diameter is between Φ 400-Φ 1000mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010100735A CN102134622B (en) | 2010-01-26 | 2010-01-26 | Bell-less blast furnace distributing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010100735A CN102134622B (en) | 2010-01-26 | 2010-01-26 | Bell-less blast furnace distributing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102134622A CN102134622A (en) | 2011-07-27 |
| CN102134622B true CN102134622B (en) | 2012-10-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010100735A Active CN102134622B (en) | 2010-01-26 | 2010-01-26 | Bell-less blast furnace distributing device |
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| Country | Link |
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| CN (1) | CN102134622B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107435935A (en) * | 2016-05-27 | 2017-12-05 | 深圳市汇清科技股份有限公司 | Incinerator |
| CN109593902B (en) * | 2018-12-03 | 2020-11-24 | 江苏省沙钢钢铁研究院有限公司 | Blast furnace top big and small tank mixed material distribution system and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2034584U (en) * | 1988-04-01 | 1989-03-22 | 北京钢铁学院 | Blast furnace with appliance for distributing burden |
| CN2628534Y (en) * | 2003-06-04 | 2004-07-28 | 石家庄三环阀门股份有限公司 | Blast furnace non-top bell top charging equipment |
| CN201678691U (en) * | 2010-01-26 | 2010-12-22 | 沈阳东方钢铁有限公司 | Blast furnace clock-free material distribution device |
-
2010
- 2010-01-26 CN CN201010100735A patent/CN102134622B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2034584U (en) * | 1988-04-01 | 1989-03-22 | 北京钢铁学院 | Blast furnace with appliance for distributing burden |
| CN2628534Y (en) * | 2003-06-04 | 2004-07-28 | 石家庄三环阀门股份有限公司 | Blast furnace non-top bell top charging equipment |
| CN201678691U (en) * | 2010-01-26 | 2010-12-22 | 沈阳东方钢铁有限公司 | Blast furnace clock-free material distribution device |
Non-Patent Citations (2)
| Title |
|---|
| JP昭63-96206A 1988.04.27 |
| JP特开2002-302707A 2002.10.18 |
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| CN102134622A (en) | 2011-07-27 |
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