CN101993966A - Iron-making blast furnace charging system control device - Google Patents
Iron-making blast furnace charging system control device Download PDFInfo
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- CN101993966A CN101993966A CN2010105816357A CN201010581635A CN101993966A CN 101993966 A CN101993966 A CN 101993966A CN 2010105816357 A CN2010105816357 A CN 2010105816357A CN 201010581635 A CN201010581635 A CN 201010581635A CN 101993966 A CN101993966 A CN 101993966A
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Abstract
The invention discloses an iron-making blast furnace charging system control device, which comprises a first operating switch and a second operating switch, the operating control points of which are arranged in an iron-making blast furnace main control operating chamber, wherein one end of the first operating switch is connected with an iron-making blast furnace top relay power supply, and the other end of the first operating switch is connected with a coil of a flap left rotating control relay; and one end of the second operating switch is connected with the iron-making blast furnace top relay power supply, and the other end of the second operating switch is connected with a coil of a flap right rotating control relay. In the iron-making blast furnace charging system control device disclosed by the invention, the power supplies of the flap left rotating control relay and the flap right rotating control relay are directly guided into the main control operating chamber through the operating switches; and when the action of a flap is not in place due to material blocking and remaining, the operating switches are manually operated to control the flap to rotate left and right again till the action of the flap is in place; therefore, the problem that blast furnace charging is affected because the action of the flap is not in place due to large materials and remaining materials at the top of a blast furnace charging tank in the prior art is solved.
Description
Technical field
The present invention relates to metallurgical technology field, more particularly, relate to a kind of iron-smelting blast furnace feeding system control device.
Background technology
Existing iron-smelting blast furnace, the general employing and jar no bell top charging mode, in parallel by two batch cans alternately to shaft furnace charging.Concrete, the iron-smelting blast furnace feeding system is made up of hopper, turnover panel, upper sealing valve, pressure-equalizing and discharging valve, two equipment such as batch can, equalizing valve, material flow gate, lower seal valve and distributor, at first truck is to feeding in batch can by hopper, this moment upper sealing valve and pressure-equalizing and discharging opening of valves; Behind the inner charged of batch can, feed to high furnace interior by batch can.
The blowing process is: close upper sealing valve and pressure-equalizing and discharging valve, open equalizing valve, lower seal valve and material valve adjusting and open, two interior material of batch can flow in the burner hearth through the effect of distributor; After the material in two batch cans has been put, need in batch can, feed, at this moment, close equalizing valve, material flow gate and lower seal valve, open upper sealing valve and pressure-equalizing and discharging valve, truck is feeded in batch can by hopper.The middle part is provided with turnover panel on the batch can of two parallel connections, in above-mentioned charging and blowing process, selects the batch can of input by left-right rotation control.
Concrete, as shown in Figure 1, relay K 1 control turnover panel turns left, relay K 2 control turnover panels are turned right, below to turn left with the control turnover panel be that example describes, the PLC sending controling instruction, the power supply of relay K1 branch road inserts switch closure, at this moment, relay K 1 coil gets electric, its normally opened contact closure, because the normally opened contact of relay K 1 links to each other with turnover panel left-hand rotation action magnetic valve (not illustrating among the figure), after the normally opened contact closure of relay K 1, this magnetic valve gets electronic work, touches the hydro-cylinder action turnover panel is turned left.
In the prior art, the blast furnace bucket top influences the carrying out of shaft furnace charging process if getting stuck, remaining and expect phenomenon of oversize material may cause the turnover panel action not in place.
Summary of the invention
In view of this, the invention provides a kind of iron-smelting blast furnace feeding system control device, if the material that gets stuck, remains of oversize material causes the turnover panel action not in place, influence the problem of shaft furnace charging to solve blast furnace bucket top in the prior art.
For addressing the above problem, the existing scheme that proposes is as follows:
A kind of iron-smelting blast furnace feed system control device comprises: operating point control all is arranged at first operating switch and second operating switch of iron-smelting blast furnace master control operation room, wherein:
Described first operating switch, one end links to each other with iron-smelting blast furnace furnace roof relay power, and the other end is connected with the coil of turnover panel left-hand rotation relay;
Described second operating switch, one end links to each other with iron-smelting blast furnace furnace roof relay power, and the other end is connected with the coil of turnover panel right-hand rotation relay.
Preferably, also comprise: operating point control all is arranged at the 3rd operating switch and the 4th operating switch of iron-smelting blast furnace master control operation room; Wherein:
Described the 3rd operating switch and turnover panel turn left to put in place the normally opened contact of relay is in parallel;
Turn right put in place the normally opened contact of relay of described the 4th operating switch and turnover panel is in parallel.
Preferably, also comprise:
Operating point control all is arranged at the 5th operating switch and the 6th operating switch of iron-smelting blast furnace master control operation room; Wherein:
Described the 5th operating switch is in parallel with the normally opened contact that upper sealing valve is opened the relay that puts in place;
Described the 6th operating switch is in parallel with the normally opened contact that upper sealing valve is closed the relay that puts in place.
Preferably, also comprise:
Operating point control all is arranged at the 7th operating switch and the 8th operating switch of iron-smelting blast furnace master control operation room; Wherein:
Put in place the normally opened contact of relay of described the 7th operating switch and lower seal opening of valves is in parallel;
Described the 8th operating switch is in parallel with the normally opened contact that the lower seal valve cuts out the relay that puts in place.
Preferably, also comprise: be arranged on the current transformer that iron-smelting blast furnace distributor frequency transformer input power supply B goes up mutually, be in series with reometer on this current transformer, the position that is provided with of this reometer is an iron-smelting blast furnace master control operation room.
From above-mentioned technical scheme as can be seen, in the iron-smelting blast furnace feeding system control device disclosed by the invention, the power supply of the relay of turnover panel left-right rotation is directly drawn from the master control operation room by operating switch, when occur getting stuck, surplus material phenomenon causes turnover panel to move when not in place, the manual operation operating switch, the control turnover panel is left-right rotation again, put in place until this turnover panel action, solved blast furnace bucket top in the prior art because getting stuck, remaining and expect to cause the turnover panel action not in place of oversize material influences the problem of shaft furnace charging.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the control device of the turnover panel of iron-smelting blast furnace feed system in the prior art;
Fig. 2 is the structural representation of control device of the turnover panel of the disclosed a kind of iron-smelting blast furnace feed system of the embodiment of the invention;
Fig. 3 is the structural representation of control device of the turnover panel of the disclosed a kind of iron-smelting blast furnace feed system of the embodiment of the invention;
Fig. 4 is the structural representation of control device of the upper sealing valve of the disclosed a kind of iron-smelting blast furnace feed system of the embodiment of the invention;
Fig. 5 is the structural representation of control device of the lower seal valve of the disclosed another kind of iron-smelting blast furnace feed system of the embodiment of the invention;
Fig. 6 is the structural representation of control device of the distributor of the disclosed another kind of iron-smelting blast furnace feed system of the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
The embodiment of the invention discloses a kind of iron-smelting blast furnace feeding system control device, because the material that gets stuck, remains of oversize material causes the turnover panel action not in place, influence the problem of shaft furnace charging to solve blast furnace bucket top in the prior art.
As shown in Figure 2, the disclosed iron-smelting blast furnace feed system of present embodiment control device comprises: operating point control all is arranged at first operating switch 11 and second operating switch 12 of iron-smelting blast furnace master control operation room, wherein:
First operating switch, 11 1 ends link to each other with iron-smelting blast furnace furnace roof relay power, and the other end is connected with the coil of turnover panel left-hand rotation relay K1;
Second operating switch, 12 1 ends link to each other with iron-smelting blast furnace furnace roof relay power, and the other end is connected with the coil of turnover panel right-hand rotation relay K2.
When the getting stuck of oversize material, surplus material phenomenon appear in the blast furnace bucket top, turnover panel moves not in place under the control of PLC, at this moment, the staff can manual operation first operating switch 11 or second operating switch 12, is example with the turnover panel left-hand rotation equally, staff's manual operation first operating switch 11, make its closure, the coil of relay K 1 gets electric, relay K 1 normally opened contact closure, magnetic valve gets electronic work, touches the hydro-cylinder action turnover panel is turned left.The process of manual operation second operating switch 12 is identical with manual operation first operating switch 11, sees also said process.
In the prior art, after the turnover panel action puts in place and finishes, can trigger near switch, as depicted in figs. 1 and 2, near switch closure, the coil of relay K 3 or K4 gets, the normally opened contact closure of relay K 3 or K4, the normally opened contact of relay K 3 or K4 links to each other with PLC, after its closure, makes PLC sending controling instruction control truck finish the material loading process.
Yet, when card small powder, surplus when expecting phenomenon is less arranged at the blast furnace bucket top, may not can trigger near switch after the turnover panel action, at this moment, PLC can not finish the material loading process by sending controling instruction.But, even continue the action of control turnover panel now, may not trigger equally near switch, will have a strong impact on the natural labor of blast furnace like this.
Therefore, another embodiment of the present invention discloses a kind of iron-smelting blast furnace feeding system control device again, as shown in Figure 3, this control device is compared with the disclosed control device of the foregoing description, difference is, this iron-smelting blast furnace feeding system control device also comprises except that comprising first operating switch 11 and second operating switch 12: operating point control all is arranged at the 3rd operating switch 13 and the 4th operating switch 14 of iron-smelting blast furnace master control operation room; Wherein:
The 3rd operating switch 13 and turnover panel turn left to put in place the normally opened contact of relay K3 is in parallel;
Turn right put in place the normally opened contact of relay K4 of the 4th operating switch 14 and turnover panel is in parallel.
When not triggering near switch after the turnover panel action, the staff is manual operation the 3rd operating switch 13 or the 4th operating switch 14 directly, the normally opened contact of short circuit system relay K 3 or K4, and control PLC sending controling instruction control truck is finished the material loading process.
In above-mentioned two embodiment, the operating point control of first operating switch, second operating switch, the 3rd operating switch and the 4th operating switch all is arranged in the iron-smelting blast furnace master control operation room, very convenient staff's operation, and the specific implementation form of operating point control can be a button etc.
When the iron-smelting blast furnace feed system was finished fill process, also by rly. control, as shown in Figure 4, this figure was the control chart of upper sealing valve in the operation of upper sealing valve and lower seal valve.
Wherein, relay K 5 control upper sealing valves are opened, and relay K 6 control upper sealing valves are closed, and relay K 7 control upper sealing valves are opened the information that puts in place, and relay K 8 control upper sealing valves are closed the information of putting in place.
Concrete, the PLC sending controling instruction, the control upper sealing valve is opened the switch closure on the branch road, the coil of relay K 5 gets, its normally opened contact (not illustrating among the figure) closure, equally, the upper sealing valve breakdown action magnetic valve (not illustrating among the figure) that links to each other with the normally opened contact of relay K 5 gets electronic work, touching the hydro-cylinder action finally makes upper sealing valve open, after upper sealing valve is opened, trigger near switch, near switch closure, the coil of relay K 7 gets, the normally opened contact closure of this rly. makes the PLC sending controling instruction finish subsequent operations, and the shutoff operation of upper sealing valve is identical with the open operation flow process, please, no longer specify by relay K 6 and K8 control herein.
Constantly in service at the iron-smelting blast furnace feed system after the upper sealing valve action, because dust and piece material hide, causes and can't trigger near switch, and it generates steering order and finishes subsequent operations can not to make PLC, influences blast furnace natural labor.
For this reason, another embodiment of the present invention also discloses a kind of iron-smelting blast furnace feeding system control device, and still as shown in Figure 4, this figure is the part of iron-smelting blast furnace feeding system control device, only shows upper sealing valve control device part.
Concrete, comprising: operating point control all is arranged at the 5th operating switch 15 and the 6th operating switch 16 of iron-smelting blast furnace master control operation room; Wherein:
The 5th operating switch 15 is in parallel with the normally opened contact that upper sealing valve is opened the relay K7 that puts in place;
The 6th operating switch 16 is in parallel with the normally opened contact that upper sealing valve is closed the relay K8 that puts in place.
After the upper sealing valve action, because dust and piece material hide, cause in the time of can't triggering near switch, staff's manual operation the 5th operating switch 15 or 16 makes its closure, and control PLC sending controling instruction is finished subsequent operations.
Equally, also have the problems referred to above in the iron-smelting blast furnace feeding system lower seal valve events process, as shown in Figure 5, iron-smelting blast furnace feeding system control device also comprises the control device of lower seal valve, comprising:
Operating point control all is arranged at the 7th operating switch 17 and the 8th operating switch 18 of iron-smelting blast furnace master control operation room; Wherein:
Put in place the normally opened contact of relay K11 of the 7th operating switch 17 and lower seal opening of valves is in parallel;
The 8th operating switch 18 is in parallel with the normally opened contact that the lower seal valve cuts out the relay K12 that puts in place.
Equally, relay K 9 control lower seal openings of valves, relay K 10 control lower seal valves cut out, the relay K 11 control lower seal openings of valves information that puts in place, relay K 12 control lower seal valves cut out the information of putting in place.
Instantly after the seal valve action, because dust and piece material hide, cause in the time of can't triggering near switch, staff's manual operation the 5th operating switch 17 or 18 makes its closure, and control PLC sending controling instruction is finished subsequent operations.
Distributor in the iron-smelting blast furnace feeding system when mounted, it is indoor that its electric control system generally is mounted in low-voltage distribution, operator can only watch the run signal of distributor in the master control operation room, whether this signal can only embody distributor and move.Owing to can not know the operation conditions of distributor, when feeding system broke down, the run signal that can only arrive distributor disappeared and just knows, this moment, distributor stopped, and had so just missed the Best Times of maintenance of equipment.And in the iron-smelting blast furnace operational process, feeding system is not allow blowing under the state that distributor stops, will influence blast furnace natural labor so equipment such as distributor break down.
For this reason, another embodiment of the present invention also discloses a kind of iron-smelting blast furnace feeding system control device, as shown in Figure 6, it is arranged on the current transformer that iron-smelting blast furnace distributor frequency transformer input power supply B goes up mutually, be in series with reometer on this current transformer, the position that is provided with of this reometer is an iron-smelting blast furnace master control operation room.
Concrete, the current value that the staff shows by reometer in the master control operation room just can judge whether equipment such as distributor breaks down, in case find that current value not within the scope of normal operation, just can directly overhaul, avoid distributor situation out of service to occur.
When the current value of reometer during less than 6A, show that the star step-down gear and the motor that link to each other with distributor have towed out operation, need to check motor and star step-down gear connecting portion;
Be lower than 20A when the current value of reometer surpasses motor rated current (14A), show that planetary reducer oil starvation or water circulation system bad needs handle;
When the current value of reometer during greater than 20A, illustrate that planetary reducer has the jam phenomenon, should stop immediately, and the counter-rotating operation is observed.
Each embodiment adopts the mode of going forward one by one to describe in this specification sheets, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (5)
1. an iron-smelting blast furnace feed system control device is characterized in that, comprising: operating point control all is arranged at first operating switch and second operating switch of iron-smelting blast furnace master control operation room, wherein:
Described first operating switch, one end links to each other with iron-smelting blast furnace furnace roof relay power, and the other end is connected with the coil of turnover panel left-hand rotation relay;
Described second operating switch, one end links to each other with iron-smelting blast furnace furnace roof relay power, and the other end is connected with the coil of turnover panel right-hand rotation relay.
2. device according to claim 1 is characterized in that, also comprises: operating point control all is arranged at the 3rd operating switch and the 4th operating switch of iron-smelting blast furnace master control operation room; Wherein:
Described the 3rd operating switch and turnover panel turn left to put in place the normally opened contact of relay is in parallel;
Turn right put in place the normally opened contact of relay of described the 4th operating switch and turnover panel is in parallel.
3. device according to claim 1 and 2 is characterized in that, also comprises:
Operating point control all is arranged at the 5th operating switch and the 6th operating switch of iron-smelting blast furnace master control operation room; Wherein:
Described the 5th operating switch is in parallel with the normally opened contact that upper sealing valve is opened the relay that puts in place;
Described the 6th operating switch is in parallel with the normally opened contact that upper sealing valve is closed the relay that puts in place.
4. device according to claim 1 and 2 is characterized in that, also comprises:
Operating point control all is arranged at the 7th operating switch and the 8th operating switch of iron-smelting blast furnace master control operation room; Wherein:
Put in place the normally opened contact of relay of described the 7th operating switch and lower seal opening of valves is in parallel;
Described the 8th operating switch is in parallel with the normally opened contact that the lower seal valve cuts out the relay that puts in place.
5. device according to claim 1 and 2, it is characterized in that, also comprise: be arranged on the current transformer that iron-smelting blast furnace distributor frequency transformer input power supply B goes up mutually, be in series with reometer on this current transformer, the position that is provided with of this reometer is an iron-smelting blast furnace master control operation room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105816357A CN101993966A (en) | 2010-12-09 | 2010-12-09 | Iron-making blast furnace charging system control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105816357A CN101993966A (en) | 2010-12-09 | 2010-12-09 | Iron-making blast furnace charging system control device |
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| CN101993966A true CN101993966A (en) | 2011-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010105816357A Pending CN101993966A (en) | 2010-12-09 | 2010-12-09 | Iron-making blast furnace charging system control device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103882168A (en) * | 2014-03-25 | 2014-06-25 | 济钢集团有限公司 | Emergency shutdown system of gas cut-off valve |
| CN111301998A (en) * | 2020-03-03 | 2020-06-19 | 山信软件股份有限公司 | Weighing hopper material clamping monitoring and control system and method |
| CN114058757A (en) * | 2021-11-11 | 2022-02-18 | 武汉钢铁有限公司 | Method for judging abnormal work of distributing device in airtight and invisible environment |
-
2010
- 2010-12-09 CN CN2010105816357A patent/CN101993966A/en active Pending
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103882168A (en) * | 2014-03-25 | 2014-06-25 | 济钢集团有限公司 | Emergency shutdown system of gas cut-off valve |
| CN103882168B (en) * | 2014-03-25 | 2015-09-02 | 济钢集团有限公司 | A kind of gas stop valve emergency shutdown system |
| CN111301998A (en) * | 2020-03-03 | 2020-06-19 | 山信软件股份有限公司 | Weighing hopper material clamping monitoring and control system and method |
| CN114058757A (en) * | 2021-11-11 | 2022-02-18 | 武汉钢铁有限公司 | Method for judging abnormal work of distributing device in airtight and invisible environment |
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Application publication date: 20110330 |