CN203604234U - Anti-disturbance anti-air-interruption blast furnace blower unit - Google Patents
Anti-disturbance anti-air-interruption blast furnace blower unit Download PDFInfo
- Publication number
- CN203604234U CN203604234U CN201320805458.5U CN201320805458U CN203604234U CN 203604234 U CN203604234 U CN 203604234U CN 201320805458 U CN201320805458 U CN 201320805458U CN 203604234 U CN203604234 U CN 203604234U
- Authority
- CN
- China
- Prior art keywords
- blast furnace
- valve
- arm
- disturbance
- air
- 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
Images
Landscapes
- Blast Furnaces (AREA)
Abstract
The utility model discloses an anti-disturbance anti-air-interruption blast furnace blower unit which comprises a blast furnace blower for supplying air for a main air supply pipe. The power input end of the blast furnace blower is connected with the power output end of a driving device, and the main air supply pipe between the blast furnace blower and a blast furnace is provided with a main valve having opening-closing and opening degree control functions. The anti-disturbance anti-air-interruption blast furnace blower unit further comprises an adjusting branch pipe, wherein an adjusting valve having opening-closing and opening degree control functions is arranged on the adjusting branch pipe and parallel to the main valve. The anti-disturbance anti-air-interruption blast furnace blower unit is high in control accuracy, stable in blast furnace air supply and high in safety, avoids air interruption, slag returning and backward gas flowing accidents and can be widely applied to the production field of the blast furnaces in the metallurgical industry, the service life of the main valve is prolonged, and the maintenance cost is reduced.
Description
Technical field
The utility model relates to metallurgy industry blast furnace production field, refers to particularly the blast furnace air unit of the anti-breaking wind of a kind of anti-disturbance.
Background technique
In metallurgical production process, blast furnace blower is mainly used in continuing to provide cold wind medium stable, high-quality to the blast furnace under the states such as normal production or damping down, is the assurance of blast furnace safety, stable yields and high yield.
At present, domestic blast furnace air unit mainly relies on synchronous motor or Steam Turbine Driven blast furnace blower to provide cold wind medium to blast furnace.Every cover blast furnace air unit has generally all been equipped with special electronic main valve, by the adjusting to electronic main valve aperture, makes the demand of the satisfied blast furnace under different conditions of blast furnace blower parameters to cold wind medium.In blast furnace staying, step-down and return air operation, for guaranteeing blast furnace blower safe operation, by regulating the aperture separately of main valve, Decompression valves and blast furnace blower stator blade, make it cooperatively interact to reach object especially.
But, due to large (DN1600/DN1400) of main valve latus rectum of blast furnace blower, so be not easy to grasp control accuracy: aperture is crossed conference and caused air quantity bigger than normal, and not only precision cannot guarantee, also can incur loss through delay the adjusting time, incident disturbing phenomenon also can cause blast furnace air feed shakiness; The less effect that does not reach adjusting of aperture.And, main valve aperture hour requires higher to performance accuracy, must confirm and coordinate in scene, otherwise the operation of appearance excessively not only easily causes the blast furnace wind that breaks thus, also there will be the explosive accidents such as blast furnace filling slag or coal gas pour in down a chimney, directly threaten the person and device security.Simultaneously, when main valve aperture hour, main valve valve plate and main feed pipe inwall can carry out throttling to cold wind, easily cause main valve valve plate and sealing surface to be subject to erosion, in the past for a long time, especially in the time that switch motion is frequent, main valve there will be the situation such as sealing surface breakage or drive mechanism bite, directly has influence on working life and the maintenance cost of main valve.
Summary of the invention
The purpose of this utility model be exactly to provide a kind of control accuracy higher, to blast furnace air feed stablize, avoid disconnected wind, fill with slag and coal gas pour in down a chimney accident occur, safe, extend main valve working life, reduce the blast furnace air unit of the anti-breaking wind of anti-disturbance of maintenance cost.
For achieving the above object, the blast furnace air unit of the designed anti-breaking wind of a kind of anti-disturbance of the utility model, comprise the blast furnace blower to blast furnace air-supply by main feed pipe, the power intake of described blast furnace blower is connected with the clutch end of drive unit, on main feed pipe between described blast furnace blower and blast furnace, be provided with and there is the main valve that opens and closes and control aperture function, also comprise adjusting arm, on described adjusting arm, be provided with and have the modulating valve that opens and closes and control aperture function, described modulating valve and main valve are arranged in parallel.
As preferred version, the air outlet of described main valve is provided with hydrophobic arm, on described hydrophobic arm, drain valve is installed.
Further, described drain valve is hand sluice valve, and described drain valve is connected by flange with hydrophobic arm.
Again further, be also provided with check valve on described main feed pipe, the input end of described check valve is connected with blast furnace blower, and the output terminal of described check valve is connected with the suction port of main valve and modulating valve simultaneously.
Also further, the input end of described check valve is provided with pressure release arm, on described pressure release arm, is provided with Decompression valves.
Further, described pressure release arm is divided into three arms in parallel, is provided with a Decompression valves in each arm.
Further, three arms sides of described pressure release arm are also parallel with a debugging arm, on described debugging arm, are provided with debugging valve.
Further, described Decompression valves is hydrovalve, and described debugging valve is mortor operated valve.
Further, described modulating valve is connected by flange with regulating arm.
Further, described modulating valve is electric gate valve or electric butterfly valve.
Working principle of the present utility model is such: (1) is to the blast furnace air feed initial stage, first opening drain valve gets rid of the condensed water being detained before main valve clean, avoided the air feed initial stage because of the blast furnace ventilation temperature that condensed water causes too low, cause temperature to accomplish rear air quantity inaccurate, aggravate the not steady phenomenon of air feed, so that had influence on the stable of conditions of blast furnace.Slowly open again main valve, and strengthen gradually the regulated quantity of main valve, to meet the requirement of blast furnace air feed.At blast furnace staying, in step-down and return air operation, first reduce gradually the aperture of main valve according to blast furnace Production requirement, in the time that main valve aperture remains 20%, main feed pipe is in throttle, need higher degree of regulation, because the regulation and control amount of modulating valve only has 1/5～1/6 of main valve, the adjusting aperture of unit time is less, be suitable for compared with the accurate control of small flow, by opening modulating valve, form with main valve the two-way intake adit cooperatively interacting, improve degree of regulation, guarantee steady air feed, prevent the significantly disturbance of airflow pressure, avoid resolving wind, fill with slag, the generation of the accidents such as coal gas pours in down a chimney, improve the safety coefficient of steady air feed.
(2) in the situation that modulating valve participates in regulating, owing to having reduced the operating time of main valve, so reduced the probability that causes the breakage of main valve sealing surface or drive mechanism bite so that damage because of frequent operation, extend the working life of main valve, reduce maintenance cost.
The utility model has the advantage of: by modulating valve with after regulating the anti-breaking wind apparatus of anti-disturbance that form of arm to come into operation, efficiently solve the sealing face leakage that causes due to main valve frequent operation in existing blast furnace air unit design or the fault of driving mechanism bite damage; The not steady phenomenon of air feed that the air feed initial stage that the setting of drain valve and hydrophobic arm has avoided main valve to cause because of the condensed water being detained occurs; Under not good or damping down condition, improve air feed degree of regulation at conditions of blast furnace, reduced disturbance, disconnected wind, filled with slag and coal gas pours in down a chimney so that the generation of the accident such as blast, greatly improved the safety coefficient of blast furnace air unit air feed.
Accompanying drawing explanation
Fig. 1 is the structural representation of the blast furnace air unit of the anti-breaking wind of the anti-disturbance of the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Referring to Fig. 1, the blast furnace air unit of the anti-breaking wind of anti-disturbance of the present utility model, comprises main feed pipe 2, blast furnace blower 3, drive unit 4, main valve 5, modulating valve 6, regulates arm 7, drain valve 8, hydrophobic arm 9, check valve 10, Decompression valves 11, pressure release arm 12, debugging valve 13 and debugging arm 14.
Described blast furnace blower 3 is blown to blast furnace 1 by main feed pipe 2, and the power intake of described blast furnace blower 3 is connected with the clutch end of drive unit 4, and described drive unit 4 is synchronous motor or steam turbine.On main feed pipe 2 between described blast furnace blower 3 and blast furnace 1, be provided with and there is the main valve 5 that opens and closes and control aperture function, on described adjusting arm 7, be provided with and have equally the modulating valve 6 that opens and closes and control aperture function, described modulating valve 6 is arranged in parallel with main valve 5.Described main feed pipe 2 is weldingly connected with regulating arm 7.Described modulating valve 6 is electric gate valve or electric butterfly valve, and the valve body size of described modulating valve 6 designs according to the design parameter of the demand parameter of blast furnace 1 and main feed pipe 2.Described main valve 5 is mortor operated valve.For ease of timely replacing and maintenance under fault state, described modulating valve 6 is connected by flange with regulating arm 7.
The air outlet of described main valve 5 is provided with hydrophobic arm 9, and described hydrophobic arm 9 is provided with drain valve 8, and hydrophobic arm 9 is weldingly connected with main feed pipe 2.Described drain valve 8 is hand sluice valve.For ease of timely replacing and maintenance under fault state, described drain valve 8 is connected by flange with hydrophobic arm 9.On described main feed pipe 2, be also provided with check valve 10, the input end of described check valve 10 is connected with blast furnace blower 3, the output terminal of described check valve 10 is connected with the suction port of modulating valve 6 with main valve 5 simultaneously, in the time that blast furnace blower 3 causes pressure drop because of fault trip, described check valve 10 can prevent that coal gas from entering blast furnace blower 3 by main feed pipe 2 and having an accident.
The input end of described check valve 10 is provided with pressure release arm 12, and described pressure release arm 12 is divided into three arm 12a in parallel, is provided with a Decompression valves 11 in each arm 12a, and Decompression valves 11 is hydrovalve.Described pressure release arm 12 is communicated with atmosphere.Described pressure release arm 12 is weldingly connected with main feed pipe 2.For ease of timely replacing and maintenance under fault state, described Decompression valves 11 is connected by flange with pressure release arm 12.When blast furnace 1 is in the time testing or just opened, blast furnace blower 3 can produce very large blast, and now main valve 5 owing to just opening, aperture is less, if can not unnecessary air quantity be entered to atmosphere by three Decompression valvess 11, the blast of large flow can cause damage to the miscellaneous part of the blast furnace air unit of the anti-breaking wind of anti-disturbance.Three arm 12a sides of described pressure release arm 12 are also parallel with a debugging arm 14 being communicated with atmosphere, are provided with debugging valve 13 on described debugging arm 14, and described pressure release arm 12 is weldingly connected with debugging arm 14.For ease of timely replacing and maintenance under fault state, described debugging valve 13 is connected by flange with debugging arm 14.Described debugging valve 13 is mortor operated valve, and is arranged in parallel with Decompression valves 11, just opens debugging valve 13 while only having debugging pressure release arm 12, blast furnace blower 3 and the relevant auxiliary facility (not shown) of blast furnace.
To the 1 air feed initial stage of blast furnace, first open drain valve 8 condensed water of main valve 5 front delays is got rid of totally, avoided the air feed initial stage too low because of blast furnace 1 ventilation temperature that condensed water causes, cause temperature to accomplish rear air quantity inaccurate, aggravate the not steady phenomenon of air feed, so that had influence on the stable of conditions of blast furnace.Slowly open again main valve 5, and strengthen gradually the regulated quantity of main valve 5, to meet blast furnace 1 air feed requirement.At blast furnace 1 damping down, in step-down and return air operation, first reduce gradually the aperture of main valve 5 according to blast furnace 1 Production requirement, in the time that main valve 5 apertures remain 20%, main feed pipe 2 is in throttle, need higher degree of regulation, because the regulation and control amount of modulating valve 6 only has 1/5～1/6 of main valve 5, the adjusting aperture of unit time is less, be suitable for compared with the accurate control of small flow, by opening modulating valve 6, form with main valve 5 the two-way intake adit cooperatively interacting, improve degree of regulation, guarantee steady air feed, prevent the significantly disturbance of airflow pressure, avoid resolving wind, fill with slag, the generation of the accidents such as coal gas pours in down a chimney, greatly improve the safety coefficient of the steady air feed of blast furnace air unit.
In the situation that modulating valve 6 participates in regulating, owing to having reduced the operating time of main valve 5, so reduced because of frequent operation cause main valve 5 sealing surface breakages or drive mechanism (not shown, such as gear etc.) the consequently probability of damage of bite, extend the working life of main valve 5, reduced maintenance cost.
Claims (10)
1. the blast furnace air unit of the anti-breaking wind of anti-disturbance, comprise the blast furnace blower (3) to blast furnace (1) air-supply by main feed pipe (2), the power intake of described blast furnace blower (3) is connected with the clutch end of drive unit (4), on main feed pipe (2) between described blast furnace blower (3) and blast furnace (1), be provided with and there is the main valve (5) that opens and closes and control aperture function, it is characterized in that: also comprise and regulate arm (7), on described adjusting arm (7), be provided with and there is the modulating valve (6) that opens and closes and control aperture function, described modulating valve (6) is arranged in parallel with main valve (5).
2. the blast furnace air unit of the anti-breaking wind of anti-disturbance according to claim 1, is characterized in that: the air outlet of described main valve (5) is provided with hydrophobic arm (9), and drain valve (8) is installed on described hydrophobic arm (9).
3. the blast furnace air unit of the anti-breaking wind of anti-disturbance according to claim 2, is characterized in that: described drain valve (8) is hand sluice valve, and described drain valve (8) is connected by flange with hydrophobic arm (9).
4. according to the blast furnace air unit of the anti-breaking wind of anti-disturbance described in claim 1 or 2 or 3, it is characterized in that: on described main feed pipe (2), be also provided with check valve (10), the input end of described check valve (10) is connected with blast furnace blower (3), and the output terminal of described check valve (10) is connected with the suction port of modulating valve (6) with main valve (5) simultaneously.
5. the blast furnace air unit of the anti-breaking wind of anti-disturbance according to claim 4, is characterized in that: the input end of described check valve (10) is provided with pressure release arm (12), is provided with Decompression valves (11) on described pressure release arm (12).
6. the blast furnace air unit of the anti-breaking wind of anti-disturbance according to claim 5, is characterized in that: described pressure release arm (12) is divided into three arms (12a) in parallel, is provided with a Decompression valves (11) in each arm (12a).
7. the blast furnace air unit of the anti-breaking wind of anti-disturbance according to claim 6, it is characterized in that: the other debugging arm (14) that is also parallel with of three arms (12a) of described pressure release arm (12), is provided with debugging valve (13) on described debugging arm (14).
8. the blast furnace air unit of the anti-breaking wind of anti-disturbance according to claim 7, is characterized in that: described Decompression valves (11) is hydrovalve, and described debugging valve (13) is mortor operated valve.
9. according to the blast furnace air unit of the anti-breaking wind of anti-disturbance described in claim 1 or 2 or 3, it is characterized in that: described modulating valve (6) is connected by flange with regulating arm (7).
10. according to the blast furnace air unit of the anti-breaking wind of anti-disturbance described in claim 1 or 2 or 3, it is characterized in that: described modulating valve (6) is electric gate valve or electric butterfly valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320805458.5U CN203604234U (en) | 2013-12-09 | 2013-12-09 | Anti-disturbance anti-air-interruption blast furnace blower unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320805458.5U CN203604234U (en) | 2013-12-09 | 2013-12-09 | Anti-disturbance anti-air-interruption blast furnace blower unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203604234U true CN203604234U (en) | 2014-05-21 |
Family
ID=50716911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320805458.5U Expired - Fee Related CN203604234U (en) | 2013-12-09 | 2013-12-09 | Anti-disturbance anti-air-interruption blast furnace blower unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203604234U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386713A (en) * | 2018-02-12 | 2018-08-10 | 国家电网公司 | A kind of insulating gas processing unit and its control method |
-
2013
- 2013-12-09 CN CN201320805458.5U patent/CN203604234U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386713A (en) * | 2018-02-12 | 2018-08-10 | 国家电网公司 | A kind of insulating gas processing unit and its control method |
| CN108386713B (en) * | 2018-02-12 | 2023-12-01 | 国家电网公司 | Insulating gas treatment device and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204003552U (en) | Hydraulic oil radiation fan speed-adjusting and control system and engineering machinery | |
| CN201971852U (en) | Automatic fanning device for two blast furnaces having different volumes | |
| CN203604234U (en) | Anti-disturbance anti-air-interruption blast furnace blower unit | |
| CN203532152U (en) | Pressure regulating device of hydropower station | |
| CN201232065Y (en) | Blast furnace gas automatic bleeding device | |
| CN107130072B (en) | Water cooling device for blast furnace airtight box | |
| CN201424993Y (en) | Mechanical hydraulic control device for water conduit pressure-regulating valve | |
| CN202926508U (en) | Air supplementing device for mixed-flow type water turbine set | |
| CN202692444U (en) | Improved structure for pressure difference startup device for combustion gas water heater | |
| CN202451360U (en) | Water turbine volute pressure regulating valve | |
| CN202032905U (en) | Furnace pressure safety control device of annealing and heating furnace | |
| CN102788189B (en) | Control system for hydraulically driven self-acting three-way valve bank | |
| CN209371500U (en) | A kind of novel hot water case make-up water supply control system | |
| CN204493071U (en) | A kind of control gear of controllable type redundancy sequence closing | |
| CN104005451A (en) | Pre-opening pressure relief device | |
| CN110568825A (en) | Switching gate control optimization method based on DCS configuration logic | |
| CN202431992U (en) | Embedded broken line closing execution valve | |
| CN207420997U (en) | Gas-collecting pipe pressure regulating valve gas-off and power-off positioning device | |
| CN206001427U (en) | A kind of auxiliary vapour standby steam source pipeline of generating set | |
| CN2913774Y (en) | Valve structure and high furnace top utilizing this structure | |
| CN209196250U (en) | Fluid-valve opening/shutting controller | |
| CN205047562U (en) | Logical oil circuit control system of electromagnetic switch valve | |
| CN106545537B (en) | A kind of stroking mechanism of hydraulic servo variable pump | |
| CN110067757B (en) | Steam-electricity dual-drive control system and control method based on induced draft fan | |
| CN109209753A (en) | A kind of double oil pressure double-adjusting hydrogovernors |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170718 Address after: 430083, Hubei Wuhan Qingshan District Factory No. 2 Gate joint stock company organs Patentee after: Wuhan iron and Steel Company Limited Address before: 430080 Wuchang, Hubei Friendship Road, No. A, block, floor 999, 15 Patentee before: Wuhan Iron & Steel (Group) Corp. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140521 Termination date: 20181209 |