CN203741358U - Blast furnace top burden distribution control device - Google Patents
Blast furnace top burden distribution control device Download PDFInfo
- Publication number
- CN203741358U CN203741358U CN201320855519.9U CN201320855519U CN203741358U CN 203741358 U CN203741358 U CN 203741358U CN 201320855519 U CN201320855519 U CN 201320855519U CN 203741358 U CN203741358 U CN 203741358U
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- CN
- China
- Prior art keywords
- proportional valve
- control device
- valve
- blast furnace
- approach switch
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- 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.)
- Withdrawn - After Issue
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Abstract
The utility model provides a blast furnace top burden distribution control device. The burden distribution control device comprises a proportional valve which is installed in a hydraulic station at the top of a blast furnace and an analog proportional valve, wherein a proximity switch and an internal groove for installing the proximity switch are arranged on the analog proportional valve, and the analog proportional valve is connected with a feedback signal control device of the proportional valve. When the proportional valve fails, the proportional valve station feedback signals are transmitted to the analog proportional valve. The analog proportional valve is also connected with an angle control device of the fifth-gear proximity switch of the analog proportional valve, the adjustment of the each-gear angle on an upper computer is achieved according to the manufacture requirement at any time, and therefore the functions of precise control of the blanking angle and avoidance of artificial online angle adjustment are achieved. The impact on the burden distribution can be greatly reduced by virtue of undisturbed switching to achieve the purposes of uniform burden distribution in the circumferential direction, stable furnace conditions and molten iron yield increase.
Description
Technical field
The utility model relates to metallurgy industry technical field, relates in particular to a kind of blast furnace roof material distributing control device.
Background technology
The aperture of material stream in the general adoption rate valve of blast furnace roof material distributing system platform control furnace roof hopper at present, cloth is comparatively accurate; Once but proportional valve breaks down and certainly will cause blast furnace normally to produce, so adopt conventional valve platform as make-up valve platform, be switched to immediately conventional valve platform control material stream aperture after proportional valve platform breaks down.But conventional valve often can not accurately be controlled its aperture, accurate cloth, stable furnace condition in stove are affected, cannot reach the precision of proportional valve control.On the other hand, proportional valve platform and auxiliary equipment involve great expense, and price is 3-4 times of conventional valve platform.Consider blast furnace cost, nowadays the large blast furnace of steel industry all adopts this method of design.
Utility model content
Technical problem to be solved in the utility model is, overcomes the shortcoming of prior art, and the conventional valve simulation proportional valve device that a kind of cost is relatively low, control accuracy is high is provided.
In order to solve above technical problem, the utility model provides a kind of blast furnace roof material distributing control device, comprise proportional valve, described proportional valve is arranged in blast furnace top hydraulic station, also comprise simulation proportional valve, described simulation proportional valve is provided with approach switch and the inside groove of approach switch is installed, and described simulation proportional valve is connected with the feedback signal control device of proportional valve, in the time that proportional valve breaks down, proportional valve platform feedback signal is transferred to simulation proportional valve.Simulation proportional valve is also connected with the angle controller of five grades of approach switchs of simulating proportional valve simultaneously, thereby realize and can on upper computer, adjust at any time every grade of angle according to need of production, thereby the accurate control and the manpower-free that realize blanking angle adjust angle function online.Switch the impact that can greatly reduce cloth by unperturbed, reach circumferential direction cloth even, stable furnace condition, the object of raising hot metal output.
Described simulation proportional valve is arranged on below, material flow gate valve lever position, on described material valve valve position bar, a baffle plate is installed, in the time that baffle plate moves, approach switch receives induced signal, and perceptual signal is transferred to control device, by the dispensing speed of control device control material flow gate.
The technical scheme that the utility model further limits is:
Further, described approach switch has 5 gears, is respectively and detects material flow gate complete shut-down, 1 grade of material flow gate, 2 grades of material flow gates, 3 grades, material valve variable valve and material flow gate standard-sized sheet.Precision and the effect of cloth are improved better.
Further, the well width of described installation approach switch is 20mm, and the diameter of described approach switch is 18mm, than mounting groove width point a little, so more approaches the principle of work of proportional valve, regulates control to get up more convenient flexible.
Further, in order to increase approach switch work-ing life, reduce failure rate, it is the iron plate of 4mm that described approach switch is selected thickness.
The beneficial effects of the utility model are: the utility model adopts conventional valve simulation proportional valve, to the transformation of conventional valve, when proportional valve fault, by site operation personnel, valve platform is switched, use conventional valve also can precisely to control by comparative example valve, reach cloth precision and the effect the same with usage ratio valve.This transformation has realized the function that uses out expensive proportional valve on the basis of original conventional valve price.For stable furnace condition, improved cloth precision and effect, raising hot metal output are taken a firm foundation.
Brief description of the drawings
Fig. 1 is the inner trough structure schematic diagram of the utility model simulation proportional valve.
Embodiment
embodiment 1
A kind of blast furnace roof material distributing control device that the present embodiment provides, comprises proportional valve and simulation proportional valve, and proportional valve is arranged in blast furnace top hydraulic station, and simulation proportional valve is arranged on below, material flow gate valve lever position.Simulation proportional valve is provided with approach switch and the inside groove (as shown in Figure 1) of approach switch is installed, approach switch has 5 gears, is respectively and detects material flow gate complete shut-down, 1 grade of material flow gate, 2 grades of material flow gates, 3 grades, material valve variable valve and material flow gate standard-sized sheet.The interior well width that approach switch is installed is 20mm, and the diameter of approach switch is 18mm, and the material that approach switch uses is the iron plate of 4mm.
Simulation proportional valve is connected with the feedback signal control device of proportional valve, also be connected with the angle controller of five grades of approach switchs of simulating proportional valve simultaneously, in the time that proportional valve breaks down, proportional valve platform feedback signal is transferred to simulation proportional valve, realize continuous angle control by angle controller, the accurate controlling machine manpower-free who finally realizes blanking angle adjusts the function of angle online simultaneously.
In addition to the implementation, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (5)
1. a blast furnace roof material distributing control device, comprise proportional valve, described proportional valve is arranged in blast furnace top hydraulic station, be further characterized in that: also comprise simulation proportional valve, described simulation proportional valve is provided with approach switch and the inside groove of approach switch is installed, described simulation proportional valve is connected with the feedback signal control device of proportional valve, and is connected with the angle controller of simulation proportional valve approach switch simultaneously;
Described simulation proportional valve is arranged on below, material flow gate valve lever position, on described material valve valve position bar, a baffle plate is installed.
2. a kind of blast furnace roof material distributing control device according to claim 1, it is characterized in that: described approach switch has 5 gears, be respectively and detect material flow gate complete shut-down, 1 grade of material flow gate, 2 grades of material flow gates, 3 grades, material valve variable valve and material flow gate standard-sized sheet.
3. a kind of blast furnace roof material distributing control device according to claim 1, is characterized in that: the well width of described installation approach switch is 20mm.
4. a kind of blast furnace roof material distributing control device according to claim 1, is characterized in that: the diameter of described approach switch is 18mm.
5. a kind of blast furnace roof material distributing control device according to claim 4, is characterized in that: it is the iron plate of 4mm that described approach switch is selected thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320855519.9U CN203741358U (en) | 2013-12-24 | 2013-12-24 | Blast furnace top burden distribution control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320855519.9U CN203741358U (en) | 2013-12-24 | 2013-12-24 | Blast furnace top burden distribution control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203741358U true CN203741358U (en) | 2014-07-30 |
Family
ID=51341182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320855519.9U Withdrawn - After Issue CN203741358U (en) | 2013-12-24 | 2013-12-24 | Blast furnace top burden distribution control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203741358U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103740878A (en) * | 2013-12-24 | 2014-04-23 | 江苏永钢集团有限公司 | Material distribution control device for furnace top of blast furnace |
-
2013
- 2013-12-24 CN CN201320855519.9U patent/CN203741358U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103740878A (en) * | 2013-12-24 | 2014-04-23 | 江苏永钢集团有限公司 | Material distribution control device for furnace top of blast furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140730 Effective date of abandoning: 20150708 |
|
| RGAV | Abandon patent right to avoid regrant |