CN109226737A - A kind of torpedo type mixed iron car verts the control method of band-type brake - Google Patents
A kind of torpedo type mixed iron car verts the control method of band-type brake Download PDFInfo
- Publication number
- CN109226737A CN109226737A CN201811060426.0A CN201811060426A CN109226737A CN 109226737 A CN109226737 A CN 109226737A CN 201811060426 A CN201811060426 A CN 201811060426A CN 109226737 A CN109226737 A CN 109226737A
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- Prior art keywords
- band
- functional block
- type brake
- fascinates
- fascinate
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D46/00—Controlling, supervising, not restricted to casting covered by a single main group, e.g. for safety reasons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/04—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like tiltable
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
It verts the control method of band-type brake the invention discloses a kind of torpedo type mixed iron car, the control program of the control method is made of functional block TYCC01~TYCC07；Wherein: functional block TYCC01 is " absolute value is formed " functional block, functional block TYCC02 and functional block TYCC04 is " numerical value compares " functional block, functional block TYCC03 and functional block TYCC05 is for " impulse generator " functional block, functional block TYCC06 is OR-gate, and functional block TYCC07 is AND gate.By adopting the above technical scheme, it avoids the torpedo hot metal mixer car band-type brake that fascinates from occurring the abnormal generation for being closed and leading to accident because of its banjo poor contact, reduces the workload of accident maintenance；Improve the safety of STEELMAKING PRODUCTION, it is ensured that the personal safety of operator and the safety of equipment guarantee that production is normal, steadily carries out；Meanwhile also substantially increasing the economic benefit of steel production.
Description
Technical field
The invention belongs to the technical fields of metallurgical industry production equipment electrical control.More particularly it relates to a kind of
Torpedo type mixed iron car verts the control method of band-type brake.
Background technique
For fascinate motor and the band-type brake that fascinates of torpedo type mixed iron car, the two is by control of fascinating on mobile torpedo hot metal mixer car
Socket processed and hot metal in steelmaking flow backward the station controller plug that fascinates and are connected, and are fascinated control system realization by the torpedo hot metal mixer car that molten iron flows backward station
Power supply and control.
In general, ' 1 ' motor that fascinates is fascinated the inverter supply of control system by torpedo hot metal mixer car, and the band-type brake that fascinates for automatically controlled
Mode processed are as follows: fascinate motor persistently after electric certain time (such as 500 milliseconds), control system of fascinating is first to the band-type brake that fascinates
Coil applies a DC high voltage (such as 198V), and the band-type brake that fascinates is allowed quickly to open；Later, fascinate motor persistently electric feelings
Under condition, control system of fascinating becomes DC low-voltage (such as 20V) by DC high voltage to band-type brake coil power supply is fascinated.
The band-type brake power supply line figure that fascinates is as shown in Figure 1.
In this way, being not only avoided that the band-type brake that fascinates is burnt because of long-term high voltage, high current, but also band-type brake can be made to keep
Opening state.
But for various reasons, it fascinates to control socket and molten iron and flow backward the station controller plug that fascinates on torpedo hot metal mixer car and dock
It is often difficult to that the band-type brake contact therein that fascinates is made to be in good contact condition always afterwards, in this way, during torpedo hot metal mixer car fascinates,
Often the band-type brake that occurs fascinating because fascinating band-type brake coil power supply undertension is closed extremely, fascinates and be obstructed, and causes torpedo hot metal mixer car molten iron
Because fascinating it is out of control due to unload that stream is more than, and molten iron largely flows into molten iron and flows backward station melt pit.
The molten iron of accident pours into melt pit and can not only burn out torpedo hot metal mixer car motor, car body cable, car body speed reducer and wheel
Or burn, torpedo hot metal mixer car traveling steel rail in steel structure of car body basis and hole can also be crumpled when serious；In addition, the molten iron of accident
Repairing workload after pouring into melt pit is huge, and hangs what the torpedo hot metal mixer car burnt out can be lifted by crane from drawing below tapping hole to driving a vehicle
The operation safety hidden danger for filling position is very big, especially on torpedo hot metal mixer car if in the case where there are also canful molten iron, scene rush to repair operation
Difficulty and security risk will be bigger.
It follows that torpedo hot metal mixer car fascinates band-type brake it is out of control fascinate be obstructed will to STEELMAKING PRODUCTION and the person and equipment safety band
To seriously affect.
Summary of the invention
The present invention provides the control method that a kind of torpedo type mixed iron car verts band-type brake, and the purpose is to avoid torpedo hot metal mixer car from fascinating to embrace
Lock occurs the abnormal generation for being closed and leading to accident because of its banjo poor contact.
To achieve the goals above, the technical scheme adopted by the invention is as follows:
Torpedo type mixed iron car provided by the present invention verts the control method of band-type brake, controls program by functional block TYCC01
~TYCC07 is constituted；Wherein: functional block TYCC01 is " absolute value is formed " functional block, functional block TYCC02 and functional block TYCC04
It is " numerical value compares " functional block, functional block TYCC03 and functional block TYCC05 are for " impulse generator " functional block, function
Block TYCC06 is OR-gate, and functional block TYCC07 is AND gate.
When the torpedo hot metal mixer car start to fascinate and tilting motor output torque is turned round greater than 10% Rated motor forward or backwards
When square, the functional block TYCC02 output end QU will become ' 1 ' state by ' 0 ' state, thus make the band-type brake electrical power contact device K1 that fascinates
Must be electric, the band-type brake that fascinates is in by electricity condition；
Meanwhile functional block TYCC03, TYCC06 and TYCC07 output end Q will export one with one in the control program
Fix time ' 1 ' pulse of length (such as t1 time), within the t1 time, the band-type brake high-low pressure switching contactor K2 that fascinates obtain it is electric, in this way,
The band-type brake that fascinates is opened under action of high voltage；
After the t1 time, functional block TYCC03, TYCC06 and TYCC07 output end Q are become by ' 1 ' in the control unit
At ' 0 ', in this way, band-type brake high-low pressure switching contactor K2 power loss of fascinating, the band-type brake that fascinates become low voltage power supply by High Voltage Power Supply,
It is kept open under low voltage power supply with this band-type brake that makes to fascinate.
During torpedo hot metal mixer car fascinates, once the band-type brake banjo that fascinates occurs, continuous contact is bad, then the band-type brake that fascinates exists
Occurring abnormal closure under low voltage power supply because cannot keep opening state, thus causing to fascinate and be obstructed, tilting motor is actually defeated
Torque will be greater than fascinate starting torque (such as 110%~140% Rated motor torque), in this case, the control program out
Middle functional block TYCC04 output end QU will become ' 1 ' from ' 0 ', and functional block TYCC05 output end Q will export a set time (such as
The t2 time) ' 1 ' pulse, obtain tilting motor high-low pressure switching contactor K2 electric, in this way, fascinate band-type brake fascinate be obstructed when because short
When (such as t2 time) high voltage and reopen, within this t2 time, torpedo hot metal mixer car can continue to fascinate, and after the t2 time, fascinate
Band-type brake becomes low voltage power supply from High Voltage Power Supply.
When the band-type brake that fascinates becomes low voltage power supply from High Voltage Power Supply, if the band-type brake that fascinates is because of its banjo poor contact
And there is abnormal closure, tilting motor reality output torque will occur increasing suddenly and be greater than again torpedo hot metal mixer car and fascinate starting torque,
In this way, functional block TYCC04 output end QU and functional block TYCC05 output end Q will be become from ' 0 ' again in the control program
' 1 ', functional block TYCC05 output end Q will export a set time (such as t2 time) ' 1 ' pulse again, make to fascinate band-type brake again
It is opened because of short-time high voltage, in this way, torpedo hot metal mixer car fascinates after of short duration be obstructed and starts to continue to fascinate, so that torpedo hot metal mixer car is being inclined with this
Pulsating is also able to achieve under dynamic band-type brake banjo continuous contact unfavorable condition to fascinate.
The present invention by adopting the above technical scheme, avoid torpedo hot metal mixer car fascinate band-type brake occur because of its banjo poor contact it is different
It is normally closed to close the generation for leading to accident, reduce the workload of accident maintenance；Improve the safety of STEELMAKING PRODUCTION, it is ensured that operator's
The safety of personal safety and equipment guarantees that production is normal, steadily carries out；Meanwhile also substantially increasing the economy of steel production
Benefit.
Detailed description of the invention
Fig. 1 be torpedo type mixed iron car according to the present invention fascinate band-type brake power supply line figure；
Fig. 2 be torpedo type mixed iron car of the invention vert band-type brake control program structure diagram.
Specific embodiment
Below against attached drawing, by the description of the embodiment, making to a specific embodiment of the invention further details of
Illustrate, to help those skilled in the art to have more complete, accurate and deep reason to inventive concept of the invention, technical solution
Solution.
It is that torpedo type mixed iron car of the invention verts the control method program structure of band-type brake as shown in Figure 2.
In Fig. 2:
NCM is " numerical value compares " functional block, and as X1 > X2, QU is ' 1 '；As X1=X2, QE is ' 1 '；As X1 < X2
When, QL is ' 1 '；
MFP is " impulse generator " functional block, and when input terminal I becomes ' 1 ' by ' 0 ', it is T that the end Q, which will export 1 time span,
Direct impulse, and the end Q export direct impulse during, the state change of input terminal I no longer generates shadow to the end Q output state
It rings；
OR is OR-gate；
AND is AND gate；
AVA is " absolute value is formed " functional block.
As shown in Figure 1, then being depended on the band-type brake high-low pressure that fascinates by electricity by electricity or high voltage for fascinating band-type brake low-voltage
The opening/closing state of switching contactor K2.
As shown in Figure 1, it during torpedo hot metal mixer car fascinates, if poor contact occurs in the band-type brake banjo that fascinates, that is, fascinates and embraces
There are certain contact resistances between lock banjo, and the band-type brake actual voltage value that thus causes to fascinate is beaten much smaller than band-type brake holding of fascinating
Voltage value required for open state causes to fascinate and be obstructed in this way, the band-type brake that fascinates will appear abnormal closure during fascinating.
The band-type brake closure extremely of fascinating during band-type brake banjo poor contact and causing is fascinated of fascinating in order to prevent is fascinated
It being obstructed, control system of the fascinating band-type brake that can make to fascinate when determining and fascinating and be obstructed by low voltage power supply is changed to High Voltage Power Supply, and
High Voltage Power Supply is kept into regular hour (such as t2 time, t2 time be 1~2s), is reopened with this band-type brake that can make to fascinate mixed
Iron car continues to fascinate.
In this case, even if control system of fascinating is applied with high voltage to the band-type brake that fascinates, still, due to the band-type brake that fascinates
There are certain contact resistances due to poor contact for banjo, in this way, actually applied at band-type brake control coil both ends of fascinating
Voltage will be greater than fascinating band-type brake opening state holding voltage but the high voltage that is applied much smaller than control system of fascinating.
It follows that when fascinating band-type brake banjo poor contact, even if control system of fascinating is in the process of fascinating
In frequently to fascinate band-type brake apply high voltage the band-type brake control coil that fascinate will not be caused to damage.
Based on this, during fascinating, if instantaneous touch occur bad and lead to the band-type brake that fascinates for the band-type brake banjo that fascinates
Abnormal closure, which is fascinated, is obstructed, and control system of fascinating can be made by applying (such as t2 time) high voltage in short-term to the band-type brake that fascinates in time
The band-type brake that fascinates, which reopens torpedo hot metal mixer car, to be continued to fascinate；If it is bad that continuous contact occurs in the band-type brake banjo that fascinates, thus cause to incline
Dynamic band-type brake closure extremely, which is fascinated, is obstructed, and control system of fascinating can apply (i.e. t2 in short-term to the band-type brake that fascinates when judgement fascinates and is obstructed
Time) high voltage, the band-type brake that makes to fascinate, which reopens torpedo hot metal mixer car, to be continued to fascinate, but after the t2 time, since the band-type brake that fascinates is by height
Power voltage supply becomes low voltage power supply and band-type brake banjo still poor contact of fascinating again, and the band-type brake that fascinates can occur different again
Thus normally closed conjunction causes to fascinate to be obstructed, control system of at this moment fascinating is determined to fascinate again and is obstructed, in this way, control system of fascinating can
It repeats above-mentioned control mode torpedo hot metal mixer car is made also to be able to achieve pulsating under band-type brake banjo continuous contact unfavorable condition of fascinating to incline
Dynamic, i.e., torpedo hot metal mixer car fascinates the t2 time, and --- torpedo hot metal mixer car moment, which fascinates, is obstructed --- torpedo hot metal mixer car fascinates the t2 time --- torpedo hot metal mixer car moment
Fascinate and be obstructed ---.
It is fascinated band-type brake control thought based on this torpedo hot metal mixer car, is fascinated band-type brake control the present invention provides the torpedo type mixed iron car
Method (or control program) avoids the torpedo hot metal mixer car band-type brake that fascinates from because of its banjo poor contact abnormal closure occur, thus leads
Fascinate molten iron accident of being obstructed of torpedo hot metal mixer car is caused to pour into molten iron and flow backward station melt pit, which can connect in the band-type brake banjo that fascinates
It touches the band-type brake that makes to fascinate in undesirable situation and is still within opening state during fascinating.
In order to overcome the drawbacks of the prior art, realizing avoids the torpedo hot metal mixer car band-type brake that fascinates from going out because of its banjo poor contact
Now abnormal closure leads to the goal of the invention of the generation of accident, and the torpedo type mixed iron car that the present invention takes verts band-type brake control program
Design and control thought are as follows:
The control method of band-type brake as shown in Fig. 2, torpedo type mixed iron car provided by the present invention verts controls program by function
It can block TYCC01~TYCC07 composition；Wherein: functional block TYCC01 is " absolute value is formed " functional block, functional block TYCC02 and function
Energy block TYCC04 is " numerical value compares " functional block, and functional block TYCC03 and functional block TYCC05 are for " impulse generator " function
Energy block, functional block TYCC06 are OR-gate, and functional block TYCC07 is AND gate.
By the control program structure diagram it is found that fascinating when the torpedo hot metal mixer car and tilting motor is defeated forward or backwards
When torque is greater than 10% Rated motor torque out, the functional block TYCC02 output end QU will become ' 1 ' state by ' 0 ' state, by
This band-type brake electrical power contact device K1 that makes to fascinate obtains electric, and the band-type brake that fascinates is in by electricity condition；
Meanwhile functional block TYCC03, TYCC06 and TYCC07 output end Q will export one with one in the control program
' 1 ' pulse of length (such as t1 time, t1 time are 1~2s) of fixing time, within the t1 time, the band-type brake high-low pressure that fascinates switching contact
Device K2 obtain it is electric, in this way, the band-type brake that fascinates is opened under action of high voltage；
After the t1 time, functional block TYCC03, TYCC06 and TYCC07 output end Q are become by ' 1 ' in the control unit
At ' 0 ', in this way, band-type brake high-low pressure switching contactor K2 power loss of fascinating, the band-type brake that fascinates become low voltage power supply by High Voltage Power Supply,
It is kept open under low voltage power supply with this band-type brake that makes to fascinate.
Torpedo hot metal mixer car fascinate band-type brake open after during fascinating, if there is poor contact in the band-type brake banjo that fascinates, i.e.,
Fascinating between band-type brake banjo, there are certain contact resistances, and the band-type brake actual voltage value that thus causes to fascinate is much smaller than the band-type brake that fascinates
It is kept open required voltage value.In this way, the band-type brake that fascinates will appear abnormal closure during fascinating, eventually leads to and incline
It is dynamic to be obstructed, while tilting motor reality output torque will appear steep increasing.
Control system of fascinating as a result, can be applied when determining tilting motor reality output torque and increasing excessive suddenly to the band-type brake that fascinates
Add the high voltage of certain time (such as t2 time), in this way, fascinating and embracing under band-type brake banjo instantaneous touch unfavorable condition of fascinating
Lock can be opened in time, and torpedo hot metal mixer car still is able to continue normally to fascinate as a result,；
During torpedo hot metal mixer car fascinates, once the band-type brake banjo that fascinates occurs, continuous contact is bad, then the band-type brake that fascinates exists
Occurring abnormal closure under low voltage power supply because cannot keep opening state, thus causing to fascinate and be obstructed, tilting motor is actually defeated
Torque will be greater than fascinate starting torque (such as 110~140% Rated motor torques) out, in this case, in the control program
Functional block TYCC04 output end QU will become ' 1 ' from ' 0 ', and functional block TYCC05 output end Q will export a set time (such as t2
Time) ' 1 ' pulse, obtain tilting motor high-low pressure switching contactor K2 electric, in this way, fascinate band-type brake fascinate be obstructed when because short
When (such as t2 time) high voltage and reopen, within this t2 time, torpedo hot metal mixer car can continue to fascinate, and after the t2 time, fascinate
Band-type brake becomes low voltage power supply from High Voltage Power Supply.
When the band-type brake that fascinates becomes low voltage power supply from High Voltage Power Supply, if the band-type brake that fascinates is because of its banjo poor contact
And there is abnormal closure, tilting motor reality output torque will occur increasing suddenly and be greater than again torpedo hot metal mixer car and fascinate starting torque,
In this way, functional block TYCC04 output end QU and functional block TYCC05 output end Q will be become from ' 0 ' again in the control program
' 1 ', functional block TYCC05 output end Q will export a set time (such as t2 time) ' 1 ' pulse again, make to fascinate band-type brake again
It is opened because of short-time high voltage, in this way, torpedo hot metal mixer car fascinates after of short duration be obstructed and starts to continue to fascinate, so that torpedo hot metal mixer car is being inclined with this
Pulsating is also able to achieve under dynamic band-type brake banjo continuous contact unfavorable condition to fascinate.
Torpedo type mixed iron car of the invention verts band-type brake control method (or control program) by application attestation, using effect
Very well.Exist in view of above-mentioned torpedo hot metal mixer car the problems of the band-type brake that fascinates in major iron company, so, this technological achievement
If can be promoted in the major iron company in the whole nation, it is contemplated that ten million yuan of economic benefit can be created every year.
The present invention is exemplarily described above in conjunction with attached drawing, it is clear that the present invention implements not by aforesaid way
Limitation, as long as the improvement for the various unsubstantialities that the inventive concept and technical scheme of the present invention carry out is used, or without changing
It is within the scope of the present invention into the conception and technical scheme of the invention are directly applied to other occasions.
Claims (4)
- A kind of control method of band-type brake 1. torpedo type mixed iron car verts, it is characterised in that: the control program of the control method It is made of functional block TYCC01~TYCC07；Wherein: functional block TYCC01 is " absolute value is formed " functional block, functional block TYCC02 It is " numerical value compares " functional block with functional block TYCC04, functional block TYCC03 and functional block TYCC05 are for " pulse generation Device " functional block, functional block TYCC06 are OR-gate, and functional block TYCC07 is AND gate.
- The control method of band-type brake 2. torpedo type mixed iron car described in accordance with the claim 1 verts, it is characterised in that:When the torpedo hot metal mixer car start to fascinate and tilting motor output torque is greater than 10% Rated motor torque forward or backwards When, the functional block TYCC02 output end QU will become ' 1 ' state by ' 0 ' state, and the band-type brake electrical power contact device K1 that thus makes to fascinate is obtained Electricity, the band-type brake that fascinates are in by electricity condition；Meanwhile functional block TYCC03, TYCC06 and TYCC07 output end Q will export one with a timing in the control program Between length t1 ' 1 ' pulse；Within the t1 time, the band-type brake high-low pressure switching contactor K2 that fascinates obtain it is electric, in this way, the band-type brake that fascinates is in height Voltage effect is lower to open；After the t1 time, functional block TYCC03, TYCC06 and TYCC07 output end Q are become by ' 1 ' in the control unit ' 0 ', in this way, band-type brake high-low pressure switching contactor K2 power loss of fascinating, the band-type brake that fascinates become low voltage power supply by High Voltage Power Supply, with This band-type brake that makes to fascinate is kept open under low voltage power supply.
- The control method of band-type brake 3. torpedo type mixed iron car described in accordance with the claim 1 verts, it is characterised in that:During torpedo hot metal mixer car fascinates, once the band-type brake banjo that fascinates occurs, continuous contact is bad, then the band-type brake that fascinates is in low electricity Occurring abnormal closure because cannot keep opening state under pressure power supply, thus causing to fascinate and be obstructed, tilting motor reality output is turned round Square will be greater than the starting torque that fascinates；In this case, functional block TYCC04 output end QU will be become from ' 0 ' in the control program ' 1 ', functional block TYCC05 output end Q will export ' 1 ' pulse of a set time t2, make the switching contact of tilting motor high-low pressure Device K2 obtains electric；In this way, the band-type brake that fascinates is reopened when fascinating and being obstructed because of the high voltage of short time t2, in this t2 time Interior, torpedo hot metal mixer car can continue to fascinate, and after the t2 time, the band-type brake that fascinates becomes low voltage power supply from High Voltage Power Supply.
- The control method of band-type brake 4. torpedo type mixed iron car described in accordance with the claim 3 verts, it is characterised in that:When the band-type brake that fascinates becomes low voltage power supply from High Voltage Power Supply, if the band-type brake that fascinates goes out because of its banjo poor contact Now abnormal closure, tilting motor reality output torque will occur increasing suddenly and be greater than again torpedo hot metal mixer car and fascinate starting torque, in this way, Functional block TYCC04 output end QU and functional block TYCC05 output end Q will become ' 1 ' from ' 0 ' again in the control program, function Energy block TYCC05 output end Q will export ' 1 ' pulse of a set time t2 again, and the band-type brake that makes to fascinate is again because of short-time high voltage And open, in this way, torpedo hot metal mixer car fascinates after of short duration be obstructed and starts to continue to fascinate, make torpedo hot metal mixer car in the band-type brake that fascinates to patching with this Pulsating is also able to achieve under head continuous contact unfavorable condition to fascinate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811060426.0A CN109226737B (en) | 2018-09-12 | 2018-09-12 | Control method for torpedo type torpedo hot metal mixer car tilting band-type brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811060426.0A CN109226737B (en) | 2018-09-12 | 2018-09-12 | Control method for torpedo type torpedo hot metal mixer car tilting band-type brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109226737A true CN109226737A (en) | 2019-01-18 |
| CN109226737B CN109226737B (en) | 2020-09-11 |
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ID=65060976
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811060426.0A Active CN109226737B (en) | 2018-09-12 | 2018-09-12 | Control method for torpedo type torpedo hot metal mixer car tilting band-type brake |
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| CN (1) | CN109226737B (en) |
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| JPH07278631A (en) * | 1994-04-15 | 1995-10-24 | Nippon Steel Corp | Method for tilting trough |
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| CN201058371Y (en) * | 2007-06-29 | 2008-05-14 | 首钢总公司 | Tilting arrangement of torpedo type metal mixer car |
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| CN105583398A (en) * | 2016-03-10 | 2016-05-18 | 大连华锐重工焦炉车辆设备有限公司 | Emergency pneumatic tilting system of mixed iron car |
| CN107583960A (en) * | 2017-09-18 | 2018-01-16 | 马鞍山钢铁股份有限公司 | A kind of control method of roughing mills Xiao Zhang draught control mechanism switching |
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| Publication number | Publication date |
|---|---|
| CN109226737B (en) | 2020-09-11 |
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