CN107893137A - A kind of blast furnace wind turning disconnection device and method - Google Patents
A kind of blast furnace wind turning disconnection device and method Download PDFInfo
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- CN107893137A CN107893137A CN201711389182.6A CN201711389182A CN107893137A CN 107893137 A CN107893137 A CN 107893137A CN 201711389182 A CN201711389182 A CN 201711389182A CN 107893137 A CN107893137 A CN 107893137A
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000008676 import Effects 0.000 claims description 3
- 230000007257 malfunction Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000007363 regulatory process Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 4
- 235000013399 edible fruits Nutrition 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/16—Tuyéres
- C21B7/163—Blowpipe assembly
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- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Blast Furnaces (AREA)
Abstract
The invention discloses a kind of blast furnace wind turning disconnection device and method, include as device：The No.1 stove ajutage of No.1 blast furnace is connected, connects No. two stove ajutages of No. two blast furnaces, connects the wind turning pipe of No.1 stove ajutage and No. two stove ajutages and outlet valve, blow valve, wind turning valve, non-return valve, the anti-surge valve of the above-mentioned pipeline of connection.Include as method：Preparatory stage, the wind stage is mixed, switches the stage.The invention enables during wind turning off-the-line, blow valve, outlet valve, pneumatic wind turning valve, electronic wind turning valve are all to take standard-sized sheet or fully closed operation, Dynamic Regulating Process need not be carried out, so as to enormously simplify the uncertainty of the complexity of operation and operating result, avoiding off-the-line operation causes air quantity, wind pressure parameter to fluctuate and then influences the risk of conditions of blast furnace, the security of off-the-line is improved, has ensured safety in production.
Description
Technical field
The invention belongs to metallurgical technology field, more particularly to a kind of blast furnace wind turning disconnection device and method.
Background technology
Blast furnace is in smelting process, once blower fail air feed interrupts, will result in blast furnace " sitting material ", " air port
The serious accidents such as filling slag ", have a strong impact on the production of blast furnace or even the production order of whole enterprise, directly or indirectly economic loss weight
Greatly.In order to avoid blast furnace breaks the generation of wind accident, domestic many smelter all popularization and application automatic fanning technology, that is, work as height
When the unexpected failure of a certain Fans is unable to air feed in stove air feed system, by automatic fanning, immediately by another normal fortune
The part air quantity of capable blower fan is pulled over to the blast furnace corresponding to failure blower fan, so as to avoid blast furnace from breaking wind, slag tuyere accident.But
Into after wind turning state, often a Fans are simultaneously to two seat height stove air feeds, it is clear that can not meet the need that blast furnace normally produces
Will, it is therefore necessary to enable standby fan as early as possible, exit wind turning state rapidly, recover the normal air feed of blast furnace.It is this to exit wind turning
State, the process for recovering normal air feed are referred to as off-the-line, and this is a critical operations process for having to experience.It is however, existing
It is the regulation and control to two Fans and multiple valves simultaneously to the off-the-line of wind turning using more people to have technology, and operation link is more, coordinates to match somebody with somebody
It is big to close difficulty, frequently can lead to the fluctuation of blast furnace airflow pressure, harmful effect is produced to the stability of conditions of blast furnace.
The content of the invention
In order to solve above-mentioned problem, the present invention proposes that a kind of blast furnace wind turning disconnection device and method, the present invention make
Dynamic Regulating Process need not be carried out during off-the-line, so as to enormously simplify the complexity of operation and operating result
Uncertainty, avoiding off-the-line operation causes air quantity, wind pressure parameter to fluctuate and then influences the risk of conditions of blast furnace, improves off-the-line
Security, ensured safety in production.
To achieve these goals, the device as the present invention uses following scheme, including：
The No.1 stove ajutage of No.1 blast furnace is connected, connects No. two stove ajutages of No. two blast furnaces, the stove air-supply of connection No.1
The wind turning pipe of pipe and No. two stove ajutages；
One end of No.1 stove ajutage connection No.1 the first blow valve of blower fan, the blow valve of No.1 blower fan first it is another
End connection No.1 the second blow valve of blower fan, while connects one end of No.1 blower fan non-return valve, the blow valve of No.1 blower fan second it is another
One end connects No. two stove ajutages, one end of the other end connection No.1 blower fan outlet valve of No.1 blower fan non-return valve, No.1 blower fan
The other end connection No.1 blower fan of outlet valve, while connect one end of No.1 preventing fan from surging valve；
The No.1 stove ajutage also connects one end of No. two blow valves of blower fan first, No. two blow valves of blower fan first it is another
One end connects No. two blow valves of blower fan second, while connects one end of No. two blower fan non-return valves, No. two blow valves of blower fan second
The other end connects No. two stove ajutages, and the other end of No. two blower fan non-return valves connects one end of No. two blower fan outlet valves, No. two wind
The other end of machine outlet valve connects No. two blower fans, while connects one end of No. two preventing fan from surging valves；
The wind turning pipe is sequentially connected in series the first electronic wind turning valve of connection, pneumatic wind turning valve, the second electronic wind turning valve；
The No.1 stove ajutage also connects one end of No. three blow valves of blower fan first, No. three blow valves of blower fan first it is another
One end connects No. three blow valves of blower fan second, while connects one end of No. three blower fan non-return valves, No. three blow valves of blower fan second
The other end connects No. two stove ajutages, and the other end of No. three blower fan non-return valves connects one end of No. three blower fan outlet valves, No. three wind
The other end of machine outlet valve connects No. three blower fans, while connects one end of No. three preventing fan from surging valves.
The non-return valve is that Pneumatic auxiliary closes formula, and the anti-surge valve is Pneumatic butterfly valve, and the outlet valve, blow valve are electronic
Butterfly valve, the electronic wind turning valve, pneumatic wind turning valve are butterfly valve.
As method of the invention, it includes,
No.1 blower fan is in malfunction, and No.1 blower fan outlet valve, No.1 blower fan non-return valve, No.1 blower fan first are blown
Valve, the blow valve of No.1 blower fan second are turned off, and No.1 preventing fan from surging valve is opened；No. two blower fans are in wind turning state, No. two wind
Machine outlet valve, No. two blower fan non-return valves, No. two blow valves of blower fan second are opened, No. two blow valves of blower fan first, No. two blower fans
Anti-surge valve is turned off；First electronic wind turning valve, pneumatic wind turning valve, the second electronic wind turning valve are opened；
It the described method comprises the following steps：
Preparatory stage, No. three blower fans are opened, No. three blower fan outlet valves of standard-sized sheet, No. three blower fan non-return valves, make No. three blower fans
Import air quantity, outlet blast are identical with just in No. two fan parameters of wind turning operation；
In the mixed wind stage, No. three blow valves of blower fan first of standard-sized sheet, No. three preventing fan from surging valves are turned down, make two seat height stove air quantity same
Amplitude increase；
The stage is switched, drives big No. two preventing fan from surging valves, until the outlet of the outlet air quantity and No. two blower fans of No. three blower fans
Air quantity is equal, and the air quantity at this moment flowed through in wind turning pipe is almost nil；Close the first electronic wind turning valve, pneumatic wind turning valve, the second electricity
Dynamic wind turning valve.
So far wind turning off-the-line process is completed.
The invention enables during wind turning off-the-line, blow valve, outlet valve, pneumatic wind turning valve, electronic wind turning valve are all
Standard-sized sheet or fully closed operation are taken, without carrying out Dynamic Regulating Process, so as to enormously simplify the complexity of operation and operation knot
The uncertainty of fruit, avoiding off-the-line operation causes air quantity, wind pressure parameter to fluctuate and then influences the risk of conditions of blast furnace, improves
The security of off-the-line, safety in production is ensured.
Brief description of the drawings
Fig. 1 is wind turning disconnection device structural representation of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings, so that those skilled in the art can be more clear
The understanding of Chu, as shown in figure 1, the device as the present invention uses following scheme, including：
The No.1 stove ajutage 2 of No.1 blast furnace 1 is connected, connects No. two stove ajutages 4 of No. two blast furnaces 3, connects No.1 stove
The wind turning pipe 5 of ajutage 2 and No. two stove ajutages 4；
The No.1 stove ajutage 2 connects one end of the first blow valve of No.1 blower fan 11, the first blow valve of No.1 blower fan 11
Other end connection No.1 blower fan the second blow valve 12, while connect one end of No.1 blower fan non-return valve 13, No.1 blower fan second
The other end of blow valve 12 connects No. two stove ajutages 4, the other end connection No.1 blower fan outlet valve of No.1 blower fan non-return valve 13
14 one end, the other end connection No.1 blower fan 15 of No.1 blower fan outlet valve 14, while connect No.1 preventing fan from surging valve 16
One end；
The No.1 stove ajutage 2 also connects one end of No. two the first blow valves of blower fan 21, No. two blow valves of blower fan first
21 other end connects No. two the second blow valves of blower fan 22, while connects one end of No. two blower fan non-return valves 23, No. two blower fans the
The other end of two blow valves 22 connects No. two stove ajutages 4, and the other end of No. two blower fan non-return valves 23 connects No. two blower fan air-out
One end of valve 24, the other end of No. two blower fan outlet valves 24 connects No. two blower fans 25, while connects No. two preventing fan from surging valves 26
One end；
The wind turning pipe 5 is sequentially connected in series the first electronic wind turning valve 6 of connection, pneumatic wind turning valve 7, the second electronic wind turning valve 8；
The No.1 stove ajutage 2 also connects one end of No. three the first blow valves of blower fan 31, No. three blow valves of blower fan first
31 other end connects No. three the second blow valves of blower fan 32, while connects one end of No. three blower fan non-return valves 33, No. three blower fans the
The other end of two blow valves 32 connects No. two stove ajutages 4, and the other end of No. three blower fan non-return valves 33 connects No. three blower fan air-out
One end of valve 34, the other end of No. three blower fan outlet valves 34 connects No. three blower fans 35, while connects No. three preventing fan from surging valves 36
One end.
The non-return valve is that Pneumatic auxiliary closes formula, and the anti-surge valve is Pneumatic butterfly valve, and the outlet valve, blow valve are electronic
Butterfly valve, the electronic wind turning valve, pneumatic wind turning valve are butterfly valve.
As method of the invention, it includes,
No.1 blower fan is in malfunction, and No.1 blower fan outlet valve 14, No.1 blower fan non-return valve 13, No.1 blower fan first are sent
Air-valve 11, the second blow valve of No.1 blower fan 12 are turned off, and No.1 preventing fan from surging valve 16 is opened；No. two blower fans 25 are in wind turning shape
State, No. two the second blow valves of blower fan 22 of blower fan non-return valve 23, two of blower fan outlet valve 24, two are opened, No. two blower fans first
21, No. two preventing fan from surging valves 26 of blow valve are turned off；First electronic wind turning valve 5, pneumatic wind turning valve 6, the second electronic wind turning valve 7
Open；
It the described method comprises the following steps：
Preparatory stage, No. three blower fans 35 are opened, 34, No. three blower fan non-return valves 33 of No. three blower fan outlet valves of standard-sized sheet, make No. three
Import air quantity, the outlet blast of blower fan 35 are identical with just in No. two parameters of blower fan 25 of wind turning operation；
In the mixed wind stage, No. three the first blow valves of blower fan 31 of standard-sized sheet, No. three preventing fan from surging valves 36 are turned down, make two seat height stove wind
Amount is the same as amplitude increase；
The stage is switched, drives big No. two preventing fan from surging valves 26, until the outlet air quantity and No. two blower fans 25 of No. three blower fans 35
Outlet air quantity it is equal, the air quantity at this moment flowed through in wind turning pipe 5 is almost nil；Close the first electronic wind turning valve 6, pneumatic wind turning valve
7th, the second electronic wind turning valve 8.
So far wind turning off-the-line process is completed.
The invention enables during wind turning off-the-line, blow valve, outlet valve, pneumatic wind turning valve, electronic wind turning valve are all
Standard-sized sheet or fully closed operation are taken, without carrying out Dynamic Regulating Process, so as to enormously simplify the complexity of operation and operation knot
The uncertainty of fruit, avoiding off-the-line operation causes air quantity, wind pressure parameter to fluctuate and then influences the risk of conditions of blast furnace, improves
The security of off-the-line, safety in production is ensured.
Claims (3)
1. a kind of blast furnace wind turning disconnection device, it includes
The No.1 stove ajutage (2) of No.1 blast furnace (1) is connected, connects No. two stove ajutages (4) of No. two blast furnaces (3), connection one
Number stove ajutage (2) and the wind turning pipe (5) of No. two stove ajutages (4)；
One end of No.1 stove ajutage (2) connection No.1 first blow valve of blower fan (11), the blow valve of No.1 blower fan first
(11) other end connection No.1 the second blow valve of blower fan (12), while connect one end of No.1 blower fan non-return valve (13), No.1
The other end of the blow valve of blower fan second (12) connects No. two stove ajutages (4), the other end connection of No.1 blower fan non-return valve (13)
One end of No.1 blower fan outlet valve (14), the other end connection No.1 blower fan (15) of No.1 blower fan outlet valve (14), is connected simultaneously
One end of No.1 preventing fan from surging valve (16)；
The No.1 stove ajutage (2) also connects one end of No. two blow valves of blower fan first (21), No. two blow valves of blower fan first
(21) the other end connects No. two blow valves of blower fan second (22), while connects one end of No. two blower fan non-return valves (23), No. two
The other end of the blow valve of blower fan second (22) connects No. two stove ajutages (4), the other end connection of No. two blower fan non-return valves (23)
One end of No. two blower fan outlet valves (24), the other end of No. two blower fan outlet valves (24) connect No. two blower fans (25), connected simultaneously
One end of No. two preventing fan from surging valves (26)；
The wind turning pipe (5) is sequentially connected in series the first electronic wind turning valve (6) of connection, pneumatic wind turning valve (7), the second electronic wind turning valve
(8)；
It is characterized in that：
The No.1 stove ajutage (2) also connects one end of No. three blow valves of blower fan first (31), No. three blow valves of blower fan first
(31) the other end connects No. three blow valves of blower fan second (32), while connects one end of No. three blower fan non-return valves (33), No. three
The other end of the blow valve of blower fan second (32) connects No. two stove ajutages (4), the other end connection of No. three blower fan non-return valves (33)
One end of No. three blower fan outlet valves (34), the other end of No. three blower fan outlet valves (34) connect No. three blower fans (35), connected simultaneously
One end of No. three preventing fan from surging valves (36).
2. device according to claim 1, it is characterised in that：The non-return valve is that Pneumatic auxiliary closes formula, and the anti-surge valve is
Pneumatic butterfly valve, the outlet valve, blow valve are electric butterfly valve, and the electronic wind turning valve, pneumatic wind turning valve are butterfly valve.
3. a kind of wind turning off-the-line method of device according to claim 1 or claim 2, it includes, and No.1 blower fan is in malfunction,
No.1 blower fan outlet valve (14), No.1 blower fan non-return valve (13), the blow valve of No.1 blower fan first (11), No.1 blower fan second are blown
Valve (12) is turned off, and No.1 preventing fan from surging valve (16) is opened；No. two blower fans (25) are in wind turning state, No. two blower fan outlet valves
(24), No. two blower fan non-return valves (23), No. two blow valves of blower fan second (22) are opened, No. two blow valves of blower fan first (21),
No. two preventing fan from surging valves (26) are turned off；First electronic wind turning valve (5), pneumatic wind turning valve (6), the second electronic wind turning valve (7)
Open；
Characterized in that, the off-the-line method comprises the following steps：
Preparatory stage, No. three blower fans (35) are opened, No. three blower fan outlet valves (34) of standard-sized sheet, No. three blower fan non-return valves (33), make three
Import air quantity, the outlet blast of number blower fan (35) are identical with No. two blower fan (25) parameters just run in wind turning；
In the mixed wind stage, No. three blow valves of blower fan first (31) of standard-sized sheet, No. three preventing fan from surging valves (36) are turned down, make two seat height stove wind
Amount is the same as amplitude increase；
The stage is switched, opens big No. two preventing fan from surging valves (26), until the outlet air quantity and No. two blower fans of No. three blower fans (35)
(25) outlet air quantity is equal, and the air quantity at this moment flowed through in wind turning pipe (5) is almost nil；Close the first electronic wind turning valve (6), gas
Dynamic wind turning valve (7), the second electronic wind turning valve (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711389182.6A CN107893137A (en) | 2017-12-21 | 2017-12-21 | A kind of blast furnace wind turning disconnection device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711389182.6A CN107893137A (en) | 2017-12-21 | 2017-12-21 | A kind of blast furnace wind turning disconnection device and method |
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| Publication Number | Publication Date |
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| CN107893137A true CN107893137A (en) | 2018-04-10 |
Family
ID=61808413
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711389182.6A Pending CN107893137A (en) | 2017-12-21 | 2017-12-21 | A kind of blast furnace wind turning disconnection device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114752721A (en) * | 2022-03-23 | 2022-07-15 | 马鞍山钢铁股份有限公司 | Single-seat blast furnace fan power-saving system and control method thereof |
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| KR20030055017A (en) * | 2001-12-26 | 2003-07-02 | 주식회사 포스코 | Apparatus for surge protection control of blower in blast furnace and the same method |
| CN2791062Y (en) * | 2004-12-23 | 2006-06-28 | 本溪钢铁(集团)有限责任公司 | Complete device for two blast furnace blowing in using three blowers |
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| CN103266193A (en) * | 2013-05-24 | 2013-08-28 | 重庆钢铁(集团)有限责任公司 | Wind transfer security system |
| CN203639480U (en) * | 2013-12-31 | 2014-06-11 | 青岛钢铁控股集团有限责任公司 | Blast furnace blast system |
| CN207845680U (en) * | 2017-12-21 | 2018-09-11 | 马鞍山钢铁股份有限公司 | A kind of blast furnace disconnection device |
-
2017
- 2017-12-21 CN CN201711389182.6A patent/CN107893137A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07113109A (en) * | 1993-10-18 | 1995-05-02 | Kawasaki Steel Corp | Method for controlling blasting flow rate of blower of blast furnace |
| KR20030055017A (en) * | 2001-12-26 | 2003-07-02 | 주식회사 포스코 | Apparatus for surge protection control of blower in blast furnace and the same method |
| CN2791062Y (en) * | 2004-12-23 | 2006-06-28 | 本溪钢铁(集团)有限责任公司 | Complete device for two blast furnace blowing in using three blowers |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114752721A (en) * | 2022-03-23 | 2022-07-15 | 马鞍山钢铁股份有限公司 | Single-seat blast furnace fan power-saving system and control method thereof |
| CN114752721B (en) * | 2022-03-23 | 2023-08-25 | 马鞍山钢铁股份有限公司 | Single-seat blast furnace fan supply protection system and control method thereof |
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Application publication date: 20180410 |
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