CN203295516U - Air-distribution security system - Google Patents
Air-distribution security system Download PDFInfo
- Publication number
- CN203295516U CN203295516U CN2013202909912U CN201320290991U CN203295516U CN 203295516 U CN203295516 U CN 203295516U CN 2013202909912 U CN2013202909912 U CN 2013202909912U CN 201320290991 U CN201320290991 U CN 201320290991U CN 203295516 U CN203295516 U CN 203295516U
- Authority
- CN
- China
- Prior art keywords
- air feed
- main pipe
- pipe line
- air
- blower fan
- 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
Abstract
An air-distribution security system belongs to the field of production of iron steel and comprises a main control device, an air supply main pipeline I for supplying air to a blast furnace I, an air supply main pipeline II for supplying air to a blast furnace II, an air supply main pipeline III for supplying air to a blast furnace III, a blower I, a blower II and a blower III, wherein the blowers supply air to the three blast furnaces. When the blowers go wrong and one air supply main pipeline can not supply air to the blast furnaces normally, the system can temporarily distribute air to an air-distribution object from other air supply main pipelines to prevent the circumstance of air interruption of the blast furnaces, so that the problem that great economic loss is caused due to air interruption of the blast furnaces can be avoided.
Description
Technical field
The utility model relates to the Iron and Steel Production field, particularly a kind of security system for blast furnace.
Background technology
Blower fan is the key of the normal operation of blast furnace, and whether the production that the fan operation state is directly connected to blast furnace normalcy and safety.Due to the factor of the restriction that is subjected to power supply mode and blower fan, the blower fan stopping accident that can break down.After if the blower fan of operation is shut down disconnected wind for some reason, even moment disconnected wind, all may cause the major accident of blast-furnace tuyere pour slag, cause great loss and be forced to urgent damping down to blast furnace.Blast furnace resumes production generally needs 3 to 7 days, needs two weeks when serious.Also need 1-2 hour as emergency start stand-by fan after resolute wind, can't meet blast furnace safety production.
The utility model content
The purpose of this utility model just is to provide a kind of wind turning security system, when blower fan breaks down, can guarantee that blast furnace can not cause the slag tuyere accident because of disconnected wind.
the purpose of this utility model is to realize by such technical scheme, it includes master control set, air feed main pipe line I for blast furnace I air feed, the air feed main pipe line II of blast furnace II air feed, the air feed main pipe line III of blast furnace III air feed, it is the blower fan I of three blast furnace air feeds, blower fan II and blower fan III, be provided with the wind turning pipeline between any two air feed main pipe lines, be provided with a wind turning valve on the wind turning pipeline, air feed main pipe line I is by blower fan I air feed, air feed main pipe line II is by blower fan II air feed, air feed main pipe line III is by blower fan III air feed, in the blower fan I, the air outlet of blower fan II and blower fan III is provided with a vacuum breaker, in air feed main pipe line I, air feed main pipe line II and air feed main pipe line III are provided with the wind pressure monitoring device, the data that the wind pressure monitoring device will collect are sent to master control set, three Fans, the wind turning valve is connected the condition monitoring end and is connected with master control set with vacuum breaker, the instruction output end of master control set is connected with the wind turning valve with each vacuum breaker respectively.
Further, the air outlet of described blower fan I, blower fan II and blower fan III all is connected to air feed main pipe line I, air feed main pipe line II and air feed main pipe line III by three air supply ducts.
Further, be provided with three wind pressure monitoring devices on air feed main pipe line I, air feed main pipe line II and air feed main pipe line III, the wind pressure monitoring device lays respectively at the interface position place of air supply duct and three air feed main pipe lines.
Further, be provided with a switching valve on air supply duct.
Further, described system also includes the blower fan IV, and the blower fan IV is connected respectively to air feed main pipe line I, air feed main pipe line II and air feed main pipe line III by three air supply ducts.
Further, be respectively arranged with a segregaion valve on the wind turning pipeline at each wind turning valve two ends.
Further, be provided with travel switch on described vacuum breaker, travel switch is connected with master control set by ring-type communication network.
Further, described master control set is connected with travel switch with wind pressure monitoring device, vacuum breaker, wind turning valve by ring-type communication network.
, owing to having adopted technique scheme, the utlity model has following advantage:
When blower fan breaks down, when main feed pipe road can't be for the normal air feed of blast furnace, the utility model can be wind turning to the picture wind turning temporarily from other main feed pipe road, prevent that disconnected landscape condition from appearring in blast furnace, avoids the large financial loss of tool that causes because of the disconnected wind of blast furnace.
Other advantages of the present utility model, target and feature will be set forth to a certain extent in the following description, and to a certain extent,, based on to investigating hereinafter, being apparent to those skilled in the art, perhaps can be instructed from practice of the present utility model.Target of the present utility model and other advantages can realize and obtain by following specification sheets and claims.
Description of drawings
Description of drawings of the present utility model is as follows.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the wind turning schematic flow sheet.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
the wind turning security system, include master control set, air feed main pipe line I for blast furnace I air feed, the air feed main pipe line II of blast furnace II air feed, the air feed main pipe line III of blast furnace III air feed, it is the blower fan I of three blast furnace air feeds, blower fan II and blower fan III, be provided with the wind turning pipeline between any two air feed main pipe lines, be provided with a wind turning valve on the wind turning pipeline, air feed main pipe line I is by blower fan I air feed, air feed main pipe line II is by blower fan II air feed, air feed main pipe line III is by blower fan III air feed, in the blower fan I, the air outlet of blower fan II and blower fan III is provided with a vacuum breaker, in air feed main pipe line I, air feed main pipe line II and air feed main pipe line III are provided with the wind pressure monitoring device, the data that the wind pressure monitoring device will collect are sent to master control set, three Fans, the wind turning valve is connected the condition monitoring end and is connected with master control set with vacuum breaker, the instruction output end of master control set is connected with the wind turning valve with each vacuum breaker respectively.
The concrete wind turning method of controlling is:
1) judge whether fan trouble, can't send wind, if, turn to step 3), if not, turn to step 2);
2) blast of three air feed main pipe lines of monitoring, judge whether within preset range, if not, turn to step 3), if finish;
3) determine the air feed main pipe line at fault blower fan place or the abnormal air feed main pipe line of blast be wind turning to picture, be judged as wind turning whether closed to the fan outlet vacuum breaker of picture air feed, if, change step 4) over to, if not, finish;
4) judge whether wind turning processes armed state to wind turning valve between picture and other air feed main pipe line,, if there is more than one wind turning valve to be ready, turns to step 5),, if do not have, finishes;
5) whether the air feed main pipe line that connects of the wind turning valve that is ready of judgement meets the wind turning condition,, if meet, according to default wind turning sequencing, opens a wind turning valve, carries out the wind turning operation,, if do not meet, finishes.
The condition of wind turning described in step 5) is: wind turning is to the blast of picture lower than preset value a, and whether other air feed main pipe line higher than preset value a, higher than the air feed main pipe line of preset value a, meets the wind turning condition.
Preset value a is 0.2Mpa.
The blast that default wind turning sequencing described in step 5) is applicable to a plurality of wind turning main pipe lines is during greater than preset value a, and selecting sequentially one of them wind turning main pipe line is that wind turning is to the picture wind turning.
The air outlet of described blower fan I, blower fan II and blower fan III all is connected to air feed main pipe line I, air feed main pipe line II and air feed main pipe line III by three air supply ducts.Every Fans all can, for any air feed main pipe line air feed, can increase the air feed handiness of system at maintenance time.
Be provided with three wind pressure monitoring devices on air feed main pipe line I, air feed main pipe line II and air feed main pipe line III, the wind pressure monitoring device lays respectively at the interface position place of air supply duct and three air feed main pipe lines.In order accurately to judge whether the blast of air feed main pipe line is normal, a wind pressure monitoring device can be set in each air port.
Be provided with a switching valve on air supply duct.When blower fan need to be safeguarded, by closing switching valve, cut off the wind path of blower fan to the air feed main pipe line.
Described system also includes the blower fan IV, and the blower fan IV is connected respectively to air feed main pipe line I, air feed main pipe line II and air feed main pipe line III by three air supply ducts.The blower fan IV is stand-by fan, when a Fans maintenance or fault, by the wind turning valve, is the wind turning of air feed main pipe line temporarily, guarantees can not break wind, then opens the blower fan IV, makes the blast furnace normal operation.
Be respectively arranged with a segregaion valve on the wind turning pipeline at each wind turning valve two ends., by cut-offfing segregaion valve, can determine whether the wind turning valve devotes oneself to work.
Be provided with travel switch on described vacuum breaker, travel switch is connected with master control set by ring-type communication network.Before wind turning, must guarantee blower fan and need the wind path between the air feed main pipe line of wind turning to disconnect, otherwise there will be blast to pour in down a chimney in wind turning.
Described master control set is connected with travel switch with wind pressure monitoring device, vacuum breaker, wind turning valve by ring-type communication network.Ring-type communication network can improve the reliability of network of communication, while in a loop, breaking down, can complete communication work by other loop.
Embodiment one
Air dispensation system as shown in Figure 1, comprise the air feed main pipe line I of promising blast furnace I air feed, the air feed main pipe line II of blast furnace II air feed and the air feed main pipe line III of blast furnace III air feed, be provided with the wind turning pipeline between any two air feed main pipe lines, be provided with a wind turning valve on the wind turning pipeline, air feed main pipe line I is by blower fan I air feed, air feed main pipe line II is by blower fan II air feed, air feed main pipe line III is by blower fan III air feed, at the air outlet of blower fan I, blower fan II and blower fan III, is provided with a vacuum breaker.
Suppose that the blower fan I breaks down, can't be the normal air feed of blast furnace I, through monitoring, send out the blast of air feed main pipe line I higher or lower than normal blast.Judge whether the vacuum breaker of blower fan I air outlet closes this moment, if close, just can carry out wind turning operation,, if in the situation that do not close wind turning, there will be wind-fall to be poured into the situation of blower fan, can't guarantee the blast of blast furnace I.After the closure of check ring of blower fan I air outlet, judge whether the wind turning valve between air feed main pipe line II and air feed main pipe line I is processed in armed state, perhaps whether the wind turning valve between air feed main pipe line III and air feed main pipe line I is processed in armed state, could complete wind turning work by the wind turning valve under the wind turning valve is ready.When air feed main pipe line blast deficiency maybe needs to overhaul, can initiatively close wind turning valve between this air feed main pipe line and other air feed main pipe lines, so between wind turning, need to judge first whether the wind turning valve is ready.Then, before air feed main pipe line II and air feed main pipe line III are the wind turning of air feed main pipe line I, whether the blast that can judge again self meets the wind turning requirement, and when air feed main pipe line II and air feed main pipe line III met the wind turning demand simultaneously, optional one was the wind turning of air feed main pipe line I.
Explanation is finally, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment, the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not breaking away from aim and the scope of the technical program, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (8)
1. wind turning security system, it is characterized in that: described system includes master control set, air feed main pipe line I for blast furnace I air feed, the air feed main pipe line II of blast furnace II air feed, the air feed main pipe line III of blast furnace III air feed, it is the blower fan I of three blast furnace air feeds, blower fan II and blower fan III, be provided with the wind turning pipeline between any two air feed main pipe lines, be provided with a wind turning valve on the wind turning pipeline, air feed main pipe line I is by blower fan I air feed, air feed main pipe line II is by blower fan II air feed, air feed main pipe line III is by blower fan III air feed, in the blower fan I, the air outlet of blower fan II and blower fan III is provided with a vacuum breaker, in air feed main pipe line I, air feed main pipe line II and air feed main pipe line III are provided with the wind pressure monitoring device, the data that the wind pressure monitoring device will collect are sent to master control set, three Fans, the wind turning valve is connected the condition monitoring end and is connected with master control set with vacuum breaker, the instruction output end of master control set is connected with the wind turning valve with each vacuum breaker respectively.
2. wind turning security system as claimed in claim 1, it is characterized in that: the air outlet of described blower fan I, blower fan II and blower fan III all is connected to air feed main pipe line I, air feed main pipe line II and air feed main pipe line III by three air supply ducts.
3. wind turning security system as claimed in claim 2, it is characterized in that: be provided with three wind pressure monitoring devices on air feed main pipe line I, air feed main pipe line II and air feed main pipe line III, the wind pressure monitoring device lays respectively at the interface position place of air supply duct and three air feed main pipe lines.
4. wind turning security system as claimed in claim 2, is characterized in that: be provided with a switching valve on air supply duct.
5. wind turning security system as claimed in claim 1, it is characterized in that: described system also includes the blower fan IV, and the blower fan IV is connected respectively to air feed main pipe line I, air feed main pipe line II and air feed main pipe line III by three air supply ducts.
6. wind turning security system as claimed in claim 1, is characterized in that: be respectively arranged with a segregaion valve on the wind turning pipeline at each wind turning valve two ends.
7. wind turning security system as claimed in claim 1, it is characterized in that: be provided with travel switch on described vacuum breaker, travel switch is connected with master control set by ring-type communication network.
8. wind turning security system as claimed in claim 7, it is characterized in that: described master control set is connected with travel switch with wind pressure monitoring device, vacuum breaker, wind turning valve by ring-type communication network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202909912U CN203295516U (en) | 2013-05-24 | 2013-05-24 | Air-distribution security system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202909912U CN203295516U (en) | 2013-05-24 | 2013-05-24 | Air-distribution security system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203295516U true CN203295516U (en) | 2013-11-20 |
Family
ID=49571546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202909912U Expired - Fee Related CN203295516U (en) | 2013-05-24 | 2013-05-24 | Air-distribution security system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203295516U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266193A (en) * | 2013-05-24 | 2013-08-28 | 重庆钢铁(集团)有限责任公司 | Wind transfer security system |
-
2013
- 2013-05-24 CN CN2013202909912U patent/CN203295516U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266193A (en) * | 2013-05-24 | 2013-08-28 | 重庆钢铁(集团)有限责任公司 | Wind transfer security system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104646167B (en) | A kind of primary air pressure self-adaptation control method | |
| CN103266193A (en) | Wind transfer security system | |
| CN201046970Y (en) | Tuyere slag-filling preventing automatic control device for blast furnaces | |
| CN102344980B (en) | Air dispensation control system for blower system of blast furnace in metallurgical enterprise | |
| CN101922613B (en) | Fuel gas automatic current limiting control method | |
| CN203295516U (en) | Air-distribution security system | |
| CN201990692U (en) | Automatic air dispensation system of multiple blast furnace blowers | |
| CN211367609U (en) | Blast furnace fan system | |
| CN203756630U (en) | Novel sliding nozzle hydraulic control system | |
| CN101270400A (en) | Air dispensation system of multi-main pipe blast furnace | |
| CN215522887U (en) | Intelligent gas pressure regulating system | |
| CN103243191A (en) | Air dispensation safety control method | |
| CN202201913U (en) | Air volume coadjutant security slag-pouring preventing device for a plurality of blast furnaces | |
| CN102337367B (en) | Air distributing control method for blast furnace blower system | |
| CN105201805A (en) | Air compressor set intelligent control system and method based on user informatization allocation | |
| CN203976835U (en) | A kind of device of many mutual wind turnings of blower unit of many blast furnaces | |
| CN202297637U (en) | Control device for realizing mutual air distribution during operation of air supply systems of different blast furnaces | |
| CN109234480A (en) | A kind of blast furnace blower switches technique online | |
| CN201106056Y (en) | Multifunctional multidirectional intelligent air supplying-dispensing device | |
| CN110527760A (en) | Blast furnace blower system and blast furnace air supply method | |
| CN207632830U (en) | A kind of blast furnace control system of list main pipe | |
| CN102002544B (en) | Switching method for blast-furnace gas dry-wet dust removing systems | |
| CN204401025U (en) | A kind of redundancy air dispensation system | |
| CN102344979A (en) | Air dispensation control system for blower system of blast furnace in metallurgical enterprise | |
| CN102344978A (en) | System for realizing control of mutual air dispensation in operation process of air supply systems of different blast furnaces |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20180524 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |