CN108504810A - A kind of hydraulic spray gun plugging amount hydraulic control circuit - Google Patents
A kind of hydraulic spray gun plugging amount hydraulic control circuit Download PDFInfo
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- CN108504810A CN108504810A CN201810615287.7A CN201810615287A CN108504810A CN 108504810 A CN108504810 A CN 108504810A CN 201810615287 A CN201810615287 A CN 201810615287A CN 108504810 A CN108504810 A CN 108504810A
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- hydraulic
- mud
- amount
- spray gun
- hydraulic control
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/12—Opening or sealing the tap holes
- C21B7/125—Refractory plugging mass
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Blast Furnaces (AREA)
Abstract
The present invention relates to a kind of hydraulic spray gun plugging amount hydraulic control circuit and measurement methods, including bidirectional hydraulic control unit, Hydraulic clay gun, beat mud oil cylinder, gear meter, encoder and processing unit, the piston rod of wherein Hydraulic clay gun beaten mud piston and play mud oil cylinder is rigidly connected, and gear meter and bidirectional hydraulic control unit are connected in series in the rodless cavity oil circuit for playing mud oil cylinder；Encoder is installed, encoder send collected pulse signal to processing unit on gear meter.The present invention formulates according to the actual conditions of iron mouth and different beats mud amount, realize the quantitative control of same operation, it is not influenced by artificial micro-judgment factor, maintain the stability of iron mouth, to realize that blast furnace stable and high yields provides solid guarantee, it avoids distant surveillance and artificially judges the relatively large deviation brought, remote monitoring is carried out by computer external interface, realizes automation control.
Description
Technical field
The present invention relates to a kind of blast furnace hydraulic control field more particularly to a kind of flowmeter monitoring hydraulic spray gun plugging amount liquid
Press control loop.
Background technology
It is well known that blast furnace hydraulic spray gun plugging amount accurately control always for many years puzzlement the important of blast fumance ask
Topic, beat mud amount number directly affect the stability of iron mouth depth and iron mouth, and then influence blast furnace stable and high yields.It is original to beat mud
Amount device name is to play the instruction of mud stroke, is machine driving pointer-type, plays the displacement of mud cylinder block generation, steel wire rope is driven to pass
Dynamic, steel wire rope passes through the pulley blocks of rope sheave composition, and it is to detect to beat mud amount to drive pointer rotation, the size of indicators turn angle
How much.It is to beat mud amount by the displacement of driving member to estimate, and deviation is big, can not accurately control iron mouth depth.
In addition, differing since flushing and casting personnel technical ability, experience and eyesight are inconsistent, and to iron mouth situation Grasping level
It causes, judges beat mud operation every time with operator personal experience, be easy to cause and beat that mud amount is excessive or to beat mud amount very few.When beating mud
When measuring excessive, iron mouth depth can be caused too deep, iron mouth difficulty is opened next time, and stemming waste is serious；When beat mud amount it is very few when, iron mouth is deep
Spend shallow, tapping duration is short or molten iron puts the abnormal conditions such as unclean, seriously affects the service life of blast furnace crucibe.
In addition, stifled iron notch operation in stokehold is monitored in Hydraulic clay gun operating room after tapping a blast furnace, pass through distant surveillance scene Hydraulic clay gun
The instruction of mud stroke is played in upper installation, since flue dust is big, sight is poor around iron mouth, do not see, deviation of reading is too big, operability
The control of difference, iron mouth depth judges mainly by the experience of operating personnel.
Also, play the instruction detection of mud stroke is to play mud oil cylinder and beat the displacement of mud piston, rather than Hydraulic clay gun is penetrated
The number of iron port gun mud actual amount entered.The problems such as often will appear Hydraulic clay gun misoperation in practical applications, and high failure rate,
Fragile, maintenance workload is big.
Invention content
Mud amount is beaten to estimate by the displacement of driving member for blast furnace hydraulic big gun in the prior art, deviation is big, Wu Fazhun
Really the deficiencies of control iron mouth depth, the problem to be solved in the present invention is to provide a kind of flowmeter monitoring hydraulic spray gun plugging amount hydraulic pressure
Control loop and measurement method.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of hydraulic spray gun plugging amount hydraulic control circuit of the present invention, including bidirectional hydraulic control unit, Hydraulic clay gun, to beat mud oily
Cylinder, gear meter, encoder and processing unit, wherein Hydraulic clay gun are beaten mud piston and are rigidly connected with the piston rod for playing mud oil cylinder
It connects, gear meter and bidirectional hydraulic control unit are connected in series in the rodless cavity oil circuit for playing mud oil cylinder；On gear meter
Encoder is installed, encoder send collected pulse signal to processing unit.
Bidirectional hydraulic control unit includes bidirectional hydraulic lock, proportional reversing valve and solenoid directional control valve, wherein ratio commutates
Valve is installed in Y chambers and the X chamber fluid pressure lines of two hydraulic control one-way valves of bidirectional hydraulic lock, and solenoid directional control valve is installed on two liquid
In Y chambers and the X chamber fluid pressure lines of controlling check valve.
It is respectively equipped with shut-off valve on the oil pipe line of gear meter both sides.
The present invention also has digital indicator, is connect with the data output end of processing unit.
A kind of measurement method of hydraulic spray gun plugging amount hydraulic control circuit of the present invention, includes the following steps：
During Hydraulic clay gun penetrates stemming to blast furnace taphole, the revolution η of gear meter is recorded by encoder；
Processing unit receives the analog signals of 4-20mA, calculates Hydraulic clay gun 3 according to following formula and beats mud amount Vn：
Wherein, D is the diameter of hydraulic spray gun plugging piston, and d is the diameter for beating mud oil cylinder rodless cavity piston, and Vc is gear wheel flow-rate
The gear geometric cpacity of meter, η are the revolution of gear meter.
The gear geometric cpacity Vc of gear meter is the corresponding capacity of one sinusoidal wave pulse signal of encoder.
The invention also includes following steps：According to the actual conditions of blast furnace taphole formulate it is different beat mud amount, realize same
The quantitative control of operation；Make hydraulic spray gun plugging amount cumulative total reset-to-zero, for hydraulic spray gun plugging amount whole process, constantly, dynamically holds
Product monitoring.
The invention has the advantages that and advantage：
1. the present invention is applied successfully in the operation of blast furnace stifled iron notch, it can be formulated according to the actual conditions of iron mouth and different beat mud
Amount realizes the quantitative control of same operation, is not influenced by artificial micro-judgment factor, maintain the stability of iron mouth, to realize
Blast furnace stable and high yields provides solid guarantee, avoids distant surveillance and artificially judges the relatively large deviation brought, passes through computer
External interface carries out remote monitoring, realizes automation control, beats the precision controlling of mud amount within 0.1 liter every time.
2. the present invention improves the utilization rate of stemming, the usage amount of stemming is reduced, there is larger economic benefit, not only save
About stemming expense, and reduce slow wind of the blast furnace loss, it hydraulic spray gun plugging amount cumulative total reset-to-zero can be made, can be used for liquid
Press spray gun plugging amount it is whole, constantly, dynamic volume monitoring, beat mud amount to reach to accurately control.
3. being beaten the invention avoids blast furnace, mud amount is excessive to cause iron mouth depth too deep, and next iron mouth difficulty is opened, and waste stemming is tight
Phenomena such as weight, also avoids blast furnace and beats that very few mud amount, iron mouth depth as shallow, tapping duration are short or molten iron puts the abnormal conditions such as unclean
And seriously affect the service life of blast furnace crucibe.
Description of the drawings
Fig. 1 is that inventive flow meter monitors hydraulic spray gun plugging amount hydraulic control circuit schematic diagram；
Fig. 2 is to beat mud amount in the present invention to calculate schematic diagram；
Fig. 3 is the functional flow diagram that the present invention applies.
Wherein, 1 is proportional reversing valve, and 2 be bidirectional hydraulic lock, and 3 be Hydraulic clay gun, and 4 is play mud oil cylinder, and 5.1 be the first cut-off
Valve, 5.2 be the second shut-off valve, and 6 be gear meter, and 7 be encoder, and 8 be processing unit, and 9 be digital indicator, and 10 be electromagnetism
Reversal valve.
Specific implementation mode
The present invention is further elaborated with reference to the accompanying drawings of the specification.
As shown in Figure 1, a kind of hydraulic spray gun plugging amount hydraulic control circuit, including bidirectional hydraulic control unit, Hydraulic clay gun 3,
Mud oil cylinder 4, gear meter 6, encoder 7 and processing unit 8 are beaten, wherein beating for Hydraulic clay gun 3 and plays mud oil cylinder 4 at mud piston
Piston rod is rigidly connected, and gear meter 6 and bidirectional hydraulic control unit are connected in series in the rodless cavity oil circuit for playing mud oil cylinder 4
In；Encoder 7 is installed, encoder 7 send collected pulse signal to processing unit 8 on gear meter 6.
Bidirectional hydraulic control unit includes bidirectional hydraulic lock 2, proportional reversing valve 1 and solenoid directional control valve 10, wherein ratio
Reversal valve 1 is installed in A chambers and the B chamber fluid pressure lines of two hydraulic control one-way valves of bidirectional hydraulic lock 2, and solenoid directional control valve 10 is installed
In the Y chambers and X chamber fluid pressure lines of two hydraulic control one-way valves；It is respectively equipped with shut-off valve on 6 both sides oil pipe line of gear meter
That is the first shut-off valve 5.1 and the second shut-off valve 5.2, when maintenance, prevent oil leak from need to close the first shut-off valve 5.1 and the second shut-off valve
5.2；Also there is digital indicator 9, connect with the data output end of processing unit 8.
In the present embodiment, processing unit 8 uses industrial control computer, built-in control program, bidirectional hydraulic lock 2 to use
SL30PA1-4X/), proportional reversing valve 1 uses 4WRZE25W8-325-7X/6EG24N9EK31/F1D3M, solenoid directional control valve 10 to adopt
With 4WE6J6X/EG24N9K4V).
The operation principle and process of the present invention is as shown in Figure 3：
When the electromagnet c of the electromagnet b of proportional reversing valve 1 and solenoid directional control valve 10 obtains electric simultaneously, bidirectional hydraulic lock 2 is opened
It opens, the high pressure oil from hydraulic system enters the rodless cavity for playing mud oil cylinder 4 by gear meter 6；4 piston rod of mud oil cylinder is beaten to stretch
Go out, the mud piston of beating of Hydraulic clay gun 3 is pushed to inject stemming in blast furnace taphole channel；Meanwhile encoder 7 records gear wheel flow-rate
The revolution of meter 6 is conveyed to processing unit 8, and processing unit 8 is cumulative according to the program of setting, will enter and beat 4 rodless cavity liquid of mud oil cylinder
Pressure oil traffic filtering, conversion, processing generate Hydraulic clay gun 3 and beat mud amount, shown by digital indicator 9.
As shown in Fig. 2, the displacement L for playing the movement of mud oil cylinder 4 is both the stroke that Hydraulic clay gun 3 beats mud piston.
D is the diameter that Hydraulic clay gun 3 beats mud piston, and Vn beats mud amount for Hydraulic clay gun 3, and d is to beat 4 rodless cavity piston of mud oil cylinder
Diameter, VyTo enter the volume for playing 4 rodless cavity hydraulic oil of mud oil cylinder, Vc is gear geometric cpacity (the single-turn row of gear meter 6
Amount), η is the revolution of gear meter 6, then has：
It is obtained by formula (1)：
Vy=Vc·η (3)
So only it is to be understood that the revolution η of gear meter 6 known to (4), so that it may beat mud amount Vn to calculate Hydraulic clay gun 3.
During Hydraulic clay gun 3 penetrates stemming to blast furnace taphole, encoder 7 records turning for gear meter 6 by sinusoidal wave pulse signal
Number η, a pulse is equivalent to the flow Vc of gear geometric volume, and the analog signals for converting it into 4-20mA send place to
Unit 8 is managed, processing unit 8 receives the analog signals of 4-20mA, calculates Hydraulic clay gun 3 according to the program of setting and beat mud amount Vn,
It is shown by digital indicator 9.
When in use, before each stifled iron notch starts, it is necessary to by the zeros data on digital indicator 9.Clearing method：It will behaviour
The reset button made in platform template is pressed, and when button automatic spring, is resetted to reset and be completed.When stifled iron notch, operated in operating room
Hydraulic clay gun 3 turns round instruction control unit handle, carries out stifled iron notch operation, blocks the moment of tapping hole in Hydraulic clay gun 3, then operate hydraulic pressure
Big gun 3 plays mud instruction control unit handle, starts to penetrate stemming to tapping hole, and digital indicator 9 starts Dynamic Announce and beats mud amount (liter), when
When beating mud amount and reaching the required specified value of tapping hole depth, play the reset of mud instruction control unit handle, this operation completion.
The present invention can be formulated according to the actual conditions of blast furnace taphole it is different beat mud amount, realize the quantitative control of same operation；
Make hydraulic spray gun plugging amount cumulative total reset-to-zero, can be used for hydraulic spray gun plugging amount it is whole, constantly, dynamic volume monitoring, to
Reach to accurately control and beats mud amount；Remote monitoring is carried out by computer external interface, realizes automation control.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (7)
1. a kind of hydraulic spray gun plugging amount hydraulic control circuit, it is characterised in that：Including bidirectional hydraulic control unit, Hydraulic clay gun, beat
The piston rod of mud oil cylinder, gear meter, encoder and processing unit, wherein Hydraulic clay gun beaten mud piston with play mud oil cylinder is rigid
Property connection, gear meter and bidirectional hydraulic control unit are connected in series in the rodless cavity oil circuit for playing mud oil cylinder；Gear wheel flow-rate
Encoder is installed, encoder send collected pulse signal to processing unit on meter.
2. hydraulic spray gun plugging amount hydraulic control circuit according to claim 1, it is characterised in that：Bidirectional hydraulic control unit
Including bidirectional hydraulic lock, proportional reversing valve and solenoid directional control valve, wherein proportional reversing valve is installed on two of bidirectional hydraulic lock
In the Y chambers and X chamber fluid pressure lines of hydraulic control one-way valve, solenoid directional control valve is installed on the Y chambers and X chamber hydraulic tubes of two hydraulic control one-way valves
Lu Zhong.
3. hydraulic spray gun plugging amount hydraulic control circuit according to claim 1, it is characterised in that：In gear meter both sides
Shut-off valve is respectively equipped on oil pipe line.
4. hydraulic spray gun plugging amount hydraulic control circuit according to claim 1, it is characterised in that：Also tool statistics have shown
Instrument is connect with the data output end of processing unit.
5. a kind of measurement method of hydraulic spray gun plugging amount hydraulic control circuit, it is characterised in that include the following steps：
During Hydraulic clay gun penetrates stemming to blast furnace taphole, the revolution η of gear meter is recorded by encoder；
Processing unit calculates Hydraulic clay gun 3 according to following formula and beats mud amount Vn：
Wherein, D is the diameter of hydraulic spray gun plugging piston, and d is the diameter for beating mud oil cylinder rodless cavity piston, and Vc is gear meter
Gear geometric cpacity, η are the revolution of gear meter.
6. the measurement method of hydraulic spray gun plugging amount hydraulic control circuit according to claim 5, it is characterised in that：Gear stream
The gear geometric cpacity Vc of gauge is the corresponding capacity of one sinusoidal wave pulse signal of encoder.
7. the measurement method of hydraulic spray gun plugging amount hydraulic control circuit according to claim 5, it is characterised in that further include
Following steps：According to the actual conditions of blast furnace taphole formulate it is different beat mud amount, realize the quantitative control of same operation；Make Hydraulic clay gun
Beat mud amount cumulative total reset-to-zero, it is whole for hydraulic spray gun plugging amount, constantly, dynamic volume monitoring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810615287.7A CN108504810A (en) | 2018-06-14 | 2018-06-14 | A kind of hydraulic spray gun plugging amount hydraulic control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810615287.7A CN108504810A (en) | 2018-06-14 | 2018-06-14 | A kind of hydraulic spray gun plugging amount hydraulic control circuit |
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| Publication Number | Publication Date |
|---|---|
| CN108504810A true CN108504810A (en) | 2018-09-07 |
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ID=63403479
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810615287.7A Pending CN108504810A (en) | 2018-06-14 | 2018-06-14 | A kind of hydraulic spray gun plugging amount hydraulic control circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110724781A (en) * | 2019-11-13 | 2020-01-24 | 新兴铸管股份有限公司 | Accurate display device for mud beating amount of blast furnace mud gun |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201201949Y (en) * | 2008-06-12 | 2009-03-04 | 宁波钢铁有限公司 | Blast furnace front clay gun hydraulic system without balance valve |
| CN101608937A (en) * | 2008-06-20 | 2009-12-23 | 安徽理工大学 | A kind of low-pulsation gear flowmeter of composite gear type |
| CN102021258A (en) * | 2009-09-22 | 2011-04-20 | 上海梅山钢铁股份有限公司 | Mud beating amount detector of hydraulic mud gun |
| CN102534079A (en) * | 2012-02-13 | 2012-07-04 | 北京科技大学 | Auxiliary device of blast furnace for blast furnace tapping and taphole blockage |
-
2018
- 2018-06-14 CN CN201810615287.7A patent/CN108504810A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201201949Y (en) * | 2008-06-12 | 2009-03-04 | 宁波钢铁有限公司 | Blast furnace front clay gun hydraulic system without balance valve |
| CN101608937A (en) * | 2008-06-20 | 2009-12-23 | 安徽理工大学 | A kind of low-pulsation gear flowmeter of composite gear type |
| CN102021258A (en) * | 2009-09-22 | 2011-04-20 | 上海梅山钢铁股份有限公司 | Mud beating amount detector of hydraulic mud gun |
| CN102534079A (en) * | 2012-02-13 | 2012-07-04 | 北京科技大学 | Auxiliary device of blast furnace for blast furnace tapping and taphole blockage |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110724781A (en) * | 2019-11-13 | 2020-01-24 | 新兴铸管股份有限公司 | Accurate display device for mud beating amount of blast furnace mud gun |
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Application publication date: 20180907 |