CN201443534U - Double-speed air distributing device of blast furnace blower - Google Patents
Double-speed air distributing device of blast furnace blower Download PDFInfo
- Publication number
- CN201443534U CN201443534U CN200920013593XU CN200920013593U CN201443534U CN 201443534 U CN201443534 U CN 201443534U CN 200920013593X U CN200920013593X U CN 200920013593XU CN 200920013593 U CN200920013593 U CN 200920013593U CN 201443534 U CN201443534 U CN 201443534U
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- blast furnace
- gear
- blower
- group
- wind
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- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 239000002893 slag Substances 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000013049 sediment Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- 241001314440 Triphora trianthophoros Species 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000009474 immediate action Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
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- Blast Furnaces (AREA)
Abstract
The utility model provides a blast furnace air-blower double speed dials wind device, an air-blower passes through the pipeline and is connected with the wind valve of dialling on other air-blowers, it is connected with double speed controlling means to dial the wind valve, its double speed controlling means includes the motor, the transmission shaft, the axis of rotation, the gear train etc., wherein the gear train includes motor drive gear group, fast gear group, slow gear group and spacing cam group, the driven gear on the fast gear group, the driven gear on the slow gear group and the driven wheel on the spacing cam group, spacing spring installs in same axis of rotation. The utility model discloses a carry out double speed control to trouble blast furnace air-blower and dial wind, realize being dialled the steady increase of blast furnace air-blower load of wind, guarantee the slow steady fluctuation of pressure of blast furnace simultaneously, reduce accident economic loss, can guarantee effectively again that the accident blast furnace does not irritate the sediment operation, establish the basis for resuming production. The trouble blast furnace slag pouring accident caused by time delay of manual operation is eliminated.
Description
Technical field
The utility model belongs to the control system of blast furnace blower, specifically is a kind of blast furnace blower double speed wind turning device that is used for.
Background technique
Blast furnace blower on-line operation system is system's contact pipeline connection air feed system at present, in the daily production of blast furnace, plays the purpose of standby fan.But the defective of this system is; if blast furnace blower is because equipment of itself or external factor cause operation blast furnace blower disorderly closedown; standby blast furnace blower was restarted and was its air feed this moment, and electric fan needs about 10 minutes, and the steam-operating blower fan needs 1 hour 30 minutes.The accident of blast furnace in such cases avoid the time the longest for 3-5 minute in.Otherwise will cause blast furnace to irritate the slag accident.Our present system can't satisfy the safe operation of blast furnace obviously.
Irritate the generation of slag serious accident for fear of the blast furnace of frequent appearance, between the female pipe of the supply cold wind pipeline of two blast furnaces, set up the quick open valve of throttling, realize the wind turning purpose under the blast furnace blower accident condition, guarantee not irritate slag under the blast furnace accident condition, make it behind accident recovery, realize reaching the purpose of producing operation fast.The immediate action valve opening time of system's installation at present is 5～8 seconds, though satisfied the needs of fault blast furnace, but wind turning has fast caused again by the performance loss of wind turning blast furnace, because blast descends fast, cause by wind turning conditions of blast furnace moment destroyed, the blower of blast furnace on-line operation will satisfy 1500Nm in 5～8 second time simultaneously
3The load increase of/min is unpractical.And the excessive adjustment of moment also often causes blast furnace blower device damage accident, thereby enlarged the accident scope.So the blast furnace blower that moves when causing wind turning load does not catch up with, by the negative consequence of the conditions of blast furnace shakiness of wind turning.
Summary of the invention
The utility model provides a kind of blast furnace blower double speed wind turning device, equipment performance characteristics and requirement according to the blast furnace process system, when a blast furnace blower breaks down, be embodied as the blast furnace air feed by double speed wind turning device, both assurance accidents blast furnace safety is protected and is produced, realize again by the system stability of wind turning blast furnace, guarantee simultaneously by the safe operation of wind turning blast furnace blower.
The purpose of this utility model is to realize like this, blower is connected with wind turning valve on other blower by pipeline, the wind turning valve is connected with double-speed control device, be characterized in, double-speed control device comprises motor, transmission shaft, rotatingshaft, gear train etc., wherein gear train comprises electric-motor-driving gear train, quick gear train, low-gear group and limit cam group, and driven gear, the driven gear on the low-gear group and driven wheel, the limit spring on the limit cam group on the gear train is installed on the same rotatingshaft fast.
The utility model is by carrying out double speed control wind turning to the fault blast furnace blower, realization is steadily increased by the blast furnace blower of wind turning load, guarantee the slowly steadily fluctuation of pressure of blast furnace simultaneously, reduce accident costs, the blast furnace of assurance accident is not effectively irritated the slag operation again, lays the foundation for resuming production.It is killing three birds with one stone.The fault blast furnace of eliminating the manual operation delay time at stop and causing is irritated the slag accident.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the interconnected air dispensation system schematic representation of the utility model multimachine;
1 control gear, 2 valves, 3 blower fans, 4 blast furnaces, 5 automatic measuring units, 11 motors, 12 electric-motor-driving gear trains, 13 quick gear trains, 14 low-gear groups, 15 wedge cam groups, 16 Returnning springs, 17 rotatingshafts, 18 transmission shafts.
Embodiment
Below in conjunction with accompanying drawing specific embodiment of the utility model is elaborated.
As shown in Figure 2, many the blowers 3 of every blast furnace of the utility model 4 (blast furnace generally is furnished with 4～8 blowers) are gone up DCS and PLC control system 5 are installed, monitor constantly, dispose wind turning valve 2 and control gear 1 each other, the realization multimachine is interconnected, promptly blower is connected with wind turning valve 2 on other blower by pipeline, other blower is connected with the wind turning valve of this blower by pipeline, and carry out interlocked control by PLC, after being broken down, its blower can judge automatically, other blower is by the automatic wind turning of wind turning valve, and the mode of employing double speed wind turning, the safety of assurance blast furnace and blast furnace blower, normal operation.
Characteristics of the present utility model are by adopting double-speed control device to realize the unlatching of control wind turning valve, reaching the purpose of double speed air feed.
As shown in Figure 1, control gear of the present utility model comprises motor 11, transmission shaft 18, rotatingshaft 17, gear train etc., wherein gear train comprises electric-motor-driving gear train 12, quick gear train 13, low-gear group 14 and limit cam group 15, driving wheel on 15 groups of driven gear on the electric-motor-driving gear train 12 and quick gear train 13, low-gear group 14 and the limit cams is installed on the same transmission shaft 18, and driven gear, the driven gear on the low-gear group and driven wheel, the limit spring on the limit cam group on the gear train is installed on the same rotatingshaft 17 fast.When air dispensation system started, motor 11 started, and transmission shaft 18 rotates, and motor gear group 13 is started working fast, drove the valve rod rotation and Open valve 2; The fast actuating cam rotation of cam set 15 work of motor gear group the time, when rotating to passive cam position, promotion is moved to Returnning spring 16 directions by moving cam, Returnning spring 16 is compressed, thereby the driven gear of low-gear group 14 and driving gear engagement, two gears of gear train separate fast, the valve rod rotating speed revolves slack-off, to continue Open valve at a slow speed, the valve gate is all opened, at a slow speed control mode is valve opening after realizing earlier fast, thereby finishes the blast furnace wind turning task to the fault blower fan.After the fault blower fan was fixed, air dispensation system was closed, and it closes opposite with opening sequence, and Returnning spring resets.
Valve of the present utility model 2 adopts is the three eccentric metal seal butterfly valve or adopts other valve.
Claims (1)
1. blast furnace blower double speed wind turning device, it is characterized in that, it comprises motor, transmission shaft, rotatingshaft, gear train, wherein gear train comprises electric-motor-driving gear train, quick gear train, low-gear group and limit cam group, driving wheel on driven gear on the electric-motor-driving gear train and quick gear train, low-gear group and the limit cam group is installed on the same transmission shaft, and driven gear, the driven gear on the low-gear group and driven wheel, the limit spring on the limit cam group on the gear train is installed on the same rotatingshaft fast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920013593XU CN201443534U (en) | 2009-05-06 | 2009-05-06 | Double-speed air distributing device of blast furnace blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920013593XU CN201443534U (en) | 2009-05-06 | 2009-05-06 | Double-speed air distributing device of blast furnace blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201443534U true CN201443534U (en) | 2010-04-28 |
Family
ID=42548211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920013593XU Expired - Fee Related CN201443534U (en) | 2009-05-06 | 2009-05-06 | Double-speed air distributing device of blast furnace blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201443534U (en) |
-
2009
- 2009-05-06 CN CN200920013593XU patent/CN201443534U/en not_active Expired - Fee Related
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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: 20100428 Termination date: 20120506 |