CN208833695U - A kind of clinker reactivity worth detection system - Google Patents
A kind of clinker reactivity worth detection system Download PDFInfo
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- CN208833695U CN208833695U CN201821403450.5U CN201821403450U CN208833695U CN 208833695 U CN208833695 U CN 208833695U CN 201821403450 U CN201821403450 U CN 201821403450U CN 208833695 U CN208833695 U CN 208833695U
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- clinker
- reactivity worth
- detection system
- reactive tank
- reaction member
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Abstract
The utility model discloses a kind of clinker reactivity worth detection systems, belong to field of metallurgy.The utility model includes furnace body, reaction member and electrical signal detector, reaction member is set to the lower section of test sample pipe in furnace body, reaction member includes the reactive tank surrounded by side insulation board and bottom conductive plate, electrode is equipped in reactive tank, electrode passes through insulation board and is connected with electrical signal detector, and conductive plate is connected with electrical signal detector.The utility model overcomes the shortcomings of to influence big, testing result inaccuracy to the subjective factor of calcium oxide and the detection of clinker reactivity worth in the prior art, it is injected into calcium oxide slot using by clinker, time needed for detecting clinker dissolution certain thickness calcium oxide, change judgement reaction by physical signal and reach setting position, accuracy and detection efficiency that calcium oxide is dissolved in the detection of clinker respond can be improved.
Description
Technical field
The utility model relates to metallurgical technology fields, more specifically to a kind of clinker reactivity worth detection system.
Background technique
In steelmaking process, it is de- that the lysigenous CaO base clinker of the slag making materials such as lime and dolomite is mainly used for dephosphorization
Sulphur, the quick and complete dissolution of lime are discharged to reaction rate (especially dephosphorisation reaction), the consumption of reduction slag material and the quantity of slag is accelerated
It etc. playing an important role, but is limited by lime rate of dissolution, still has part lime undissolved in copper smelter slag, cause dephosphorization efficiency
Low, the problems such as quantity of slag is big.In recent years, in order to reduce pneumatic steelmaking cost, many iron and steel enterprises start using double slags+stay slag technique
It smelts, how to allow lime in low temperature slag (containing P2O5) in quickly dissolution be to realize one of high efficiency dephosphorating difficult point.
After usual converter smelting stays slag, new phosphorous molten iron is added, the calcics raw materials such as lime, the slag left before is then added
Contain CaO, SiO in system2, Fe2O3, P2O5, MgO, Al2O3Equal ingredients, the CaO being newly added can gradually be corroded by ingredient in slag system,
2CaOSiO is formed in calcium oxide surface layer2-3CaO·P2O5Solid solution, then P continues to spread into slag in molten iron, to reach
Dephosphorization purpose.However, different slag systems will affect the 2CaOSiO after new calcium oxide is added2-3CaO·P2O5Solid solution forms speed
Rate, to determine the dephosphorizing capacity of slag.
At present in research of the clinker to the reactivity worth of calcium oxide, generally take calcium oxide is added in slag observe it is molten
The mode for solving situation, in document " 2CaOSiO2-3CaO·P2O5Solid solution formation mechenism " (Su Chang, Yu Jingkun, Wang Hongzhang；East
Northern college journal (natural science edition), 2013,34 (10) 1434-1437) in propose detection method be: first prepare just slag specimen simultaneously fill
Enter in corundum crucible, be then placed in heating furnace and be warming up to predetermined temperature, after clinker sufficiently melts, by what is suppressed in advance
It is immersed in CaO piece insertion clinker and quickly removes after a certain period of time and be air-cooled to room temperature；Then sample is polished directly, is utilized
Scanning electron microscope (SEM) and energy depressive spectroscopy (EDS) carry out observation and Analysis of components, observing response circle to sample
Face discloses 2CaOSiO2-3CaO·P2O5The formation mechenism of solid solution layer." calcium oxide particle is in CaO-FeO- for document
SiO2-P2O5Solubility behavior in system clinker " (Xia Yunjin, Li Xiaopan, Li Jie etc.；Process engineering journal, 2017,17 (05)
It is proposed in 1041-1046) and calcium oxide particle is added to CaO-FeO-SiO2-P2O5In system clinker, different time is studied to oxygen
The influence for changing calcium solubility behavior, dips slag specimen using rod iron, is quickly cooled down with nitrogen, after inlaying sanding and polishing with resin, with sweeping
Retouch the dissolution situation of Electronic Speculum and energy spectrum analysis calcium oxide；The experimental method needs to handle sample, then passes through scanning electricity
Sem observation Calcium oxide dissolution response situation, artificial subjective judgement process are more.
By analyzing above, although the prior art is able to detect dissolution situation of the calcium oxide in slag to a certain extent,
It is that these detection methods are all the case where reaction by experimenter's subjective judgement calcium oxide, and artificial subjective factor is affected,
Quick, science it cannot detect reflex action of the calcium oxide in slag.
Utility model content
1. utility model technical problems to be solved
The purpose of the utility model is to overcome in the prior art to calcium oxide and clinker reactivity worth detection it is subjective because
Element influences big, testing result inaccuracy deficiency, provides a kind of clinker reactivity worth detection system, is injected into using by clinker
In calcium oxide slot, the time needed for detection clinker dissolution certain thickness calcium oxide, judgement reaction is changed by physical signal and is reached
Accuracy and detection efficiency that calcium oxide is dissolved in the detection of clinker respond can be improved in setting position.
2. technical solution
In order to achieve the above objectives, technical solution provided by the utility model are as follows:
A kind of clinker reactivity worth detection system of the utility model, including furnace body, reaction member and electrical signal detector,
Reaction member is set to the lower section of test sample pipe in furnace body, reaction member include surrounded by side insulation board and bottom conductive plate it is anti-
Slot is answered, electrode is equipped in reactive tank, electrode passes through insulation board and is connected with electrical signal detector, conductive plate and electrical signal detector phase
Even.
Further, pressure detecting instrument is provided with below conductive plate.
It further, further include compress cell, which includes snorkel, and the side of snorkel is equipped with tonifying Qi
Pipe, one end of snorkel, which extends into reactive tank, inwardly inflates.
Further, compress cell further includes screw piston bar, and screw piston bar is set to snorkel far from reactive tank
One end and with snorkel spiral inner wall cooperate.
Further, cladding is provided with insulating layer on the outside of reaction member.
Further, silicon molybdenum heating rod is provided on the outside of test sample pipe.
Further, pressure gauge is additionally provided on snorkel.
Further, control panel is additionally provided on furnace body.
Further, the closed plate of openable closing is provided with above reaction member.
3. beneficial effect
Using technical solution provided by the utility model, compared with prior art, have the following beneficial effects:
(1) a kind of clinker reactivity worth detection system of the utility model, the electrode in reactive tank pass through insulation board and electricity
Signal detecting and measuring apparatus is connected, and conductive plate is connected with electrical signal detector, when etching reaction occurs for reactive tank internal oxidition calcium tablet and clinker
And when burn through, electrical signal detector detects that electric signal changes, and is anti-with the ratio between thickness and the reaction time that aoxidize calcium tablet
Rate is answered, the ability of clinker dissolution calcium oxide can be characterized, such variation by physical signal sets to judge that reaction reaches
The method of position effectively prevents the influence of people position subjective factor, and calcium oxide can be improved and be dissolved in the detection of clinker respond
Accuracy and detection efficiency smelt iron dephosphorization for converter and provide reliable slagging regime data.
(2) a kind of clinker reactivity worth detection system of the utility model is to inject liquid slag in calcium oxide, detection
Time needed for clinker dissolves certain thickness calcium oxide judges that reaction reaches setting position, electricity by the variation of physical signal
Complicated chemical phase transition process is changed into simple figure linear change by signal detecting part, improves the simplicity of detection,
It is easily operated.
(3) a kind of clinker reactivity worth detection system of the utility model further includes compress cell, and set below conductive plate
It is equipped with for detecting the pressure detecting instrument for bearing pressure, the pressure detecting instrument moment monitors the pressure that conductive plate is born, passes through pressurization
The cooperation of unit can the plenum into reactive tank, increase oxidation calcium tablet bear pressure, may be implemented under a constant
Pressure stabilizing reaction is carried out to oxidation calcium tablet, ensures that oxidation calcium tablet reaction rate is consistent, effectively improves detection accuracy.
(4) a kind of clinker reactivity worth detection system of the utility model, compress cell are made by rotating screw piston bar
It can be inflated into reactive tank with gas in extruded tube to realize supercharging effect, by the different adjustment to screw piston bar, made
Pressure stabilizing state is kept in reactive tank, can effectively be avoided because influence of the error of quality to reaction is added in clinker, and uses spiral
Piston rod carries out boost pressure regulation, helps accurately to control supercharging amount, prevents pressure stabilizing state in reactive tank from larger fluctuation occur, into one
Step ensures detection accuracy.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of clinker reactivity worth detection system of the invention；
Fig. 2 is the structural schematic diagram of reaction member in the present invention.
Label declaration in schematic diagram:
100, furnace body；110, test sample pipe；120, feed inlet；130, silicon molybdenum heating rod；140, insulating layer；
200, reaction member；210, insulation board；220, conductive plate；230, reactive tank；240, electrode；
300, snorkel；310, screw piston bar；320, blowdown pipe；330, pressure gauge；
400, pressure detecting instrument；500, electrical signal detector；600, control panel.
Specific embodiment
For the content for further appreciating that the utility model, the utility model is described in detail in conjunction with attached drawing.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
Below with reference to embodiment, the utility model will be further described.
Embodiment 1
As depicted in figs. 1 and 2, a kind of clinker reactivity worth detection system of the present embodiment, including furnace body 100, reaction list
Member 200 and electrical signal detector 500, reaction member 200 are set to the lower section of test sample pipe 110 in furnace body 100, reaction member 200
Including the reactive tank 230 surrounded by side insulation board 210 and bottom conductive plate 220, electrode 240, electrode are equipped in reactive tank 230
240 are set to 220 top 5-10mm of conductive plate, and electrode 240 passes through insulation board 210 and is connected with electrical signal detector 500, conductive plate
220 are connected with electrical signal detector 500, initially constitute off state.
Quartz insulator plate can be used in insulation board 210 in the present embodiment, and graphite guide battery plate, furnace body 100 can be used in conductive plate 220
On be additionally provided with control panel 600, place for controlling each Operation switch, when detection uses and to press in reactive tank 230
The oxidation calcium tablet of consistency of thickness, it should be noted that oxidation calcium tablet is to be suppressed by the lime powder after grinding and screening
It forms, is pressed into the oxidation calcium tablet with certain diameter, non-uniform thickness, and aoxidize the diameter dimension and reactive tank 230 of calcium tablet
Diameter dimension matches, and after oxidation calcium tablet is placed into reactive tank 230, then a certain amount of lime powder is put into slot,
And swept powder to oxidation calcium tablet edge using hairbrush, aoxidize lime powder filling completely between calcium tablet and 230 inner wall of reactive tank
Minim gap, prevent subsequent clinker from oxidation calcium tablet edge directly contacted with conductive plate 220；Then by the clinker prepared from into
Material mouth 120 is sent into test sample pipe 110, silicon molybdenum heating rod 130 is provided on the outside of test sample pipe 110, according to the temperature program set
Carrying out heating will be slag melting, and the start button on control panel 600 is operated after fusing, and 110 bottom of test sample pipe is opened, the furnace of fusing
Slag instills in reactive tank 230, contacts with oxidation calcium tablet, starts timing at this time, electrode 240 is contacted with clinker always, works as calcium oxide
When piece is fused, the access shape of reaction solution and electrode 240, conductive plate 220 and the composition of electrical signal detector 500 in reactive tank 230
Electric signal mutation occurs for state, and electrical signal detector 500 detects that electric signal changes at this time, stops timing at this time, and record is anti-
Between seasonable, with the ratio between thickness and reaction time for aoxidizing calcium tablet for reaction rate, the ability that clinker dissolves calcium oxide can be characterized.
It should be noted that being directed to the detection of clinker reactivity worth, traditional detection mode is that oxidized silicon chip is put into clinker,
It takes out after a certain time, is cooling, then grind away is scanned electron microscope analysis, measurement calcium oxide reacts to form solid solution layer with clinker
Thickness, reaction effect is judged by thickness；And the present embodiment is then to inject liquid slag in calcium oxide in high temperature furnace,
Time needed for detecting clinker dissolution certain thickness calcium oxide judges that reaction reaches setting position by the variation of physical signal
It sets, effectively prevents the influence of artificial subjective factor, and complicated chemical phase transition process is changed into letter by electrical signal detection component
Single figure linear change improves the simplicity and accuracy of detection, and then can provide for converter ironmaking dephosphorization and reliably make
Slag system data.
Embodiment 2
A kind of clinker reactivity worth detection system of the present embodiment, substantially with embodiment 1, further, the present embodiment
It is provided with below middle conductive plate 220 for detecting the pressure detecting instrument 400 for bearing pressure, pressure detecting instrument 400 is capable of detecting when
Conductive plate 220 bear pressure, when actually detected, usually detect multiple groups difference clinker sample to oxidation calcium tablet reactivity worth,
Oxidation calcium tablet is reacted using the different group clinkers of constant-quality, but the multiple groups constant-quality clinker prepared is respectively through surveying
During sample pipe 110 carries out high temperature melting and drippage, due to slag viscosity is big, density is big etc., clinker can be adhered to survey
110 inner wall of sample pipe leads to actually enter every group of clinker quality in reactive tank 230 and is difficult to keep constant, and oxidation calcium tablet is born
Pressure is difficult to keep constant, and different pressure oscillations will affect the etching reaction rate of subsequent generation, influences detection accuracy.
The present embodiment then efficiently solves the above problem, Ke Yishi by the cooperation of pressure detecting instrument 400 and compress cell
Pressure stabilizing reaction now is carried out to oxidation calcium tablet under a constant, ensures that oxidation calcium tablet reaction rate is consistent, it is quasi- to effectively improve detection
True property is specifically provided with the closed plate of openable closing, i.e., being provided on insulation board 210 can beat above reaction member 200
/ the closed plate of capping slot 230 is opened, opens the closed plate, then the melting furnace slag in test sample pipe 110 can enter reactive tank
In 230, clinker then closes the closed plate after entering make to form confined reaction space in reactive tank 230, and compress cell then wraps
Snorkel 300 is included, the side of snorkel 300 is equipped with the blowdown pipe 320 of connection, and one end of snorkel 300 extends into reactive tank 230
Interior inside inflation, snorkel 300 are provided with screw piston bar 310 far from one end of reactive tank 230, screw piston bar 310 and logical
The cooperation of 300 spiral inner wall of tracheae, can be passed through nitrogen or other inert gases by blowdown pipe 320, then into snorkel 300
Rotation screw piston bar 310 allows to gas plenum into reactive tank 230 in extruded tube, increases what oxidation calcium tablet was born
Pressure.400 moment of pressure detecting instrument monitors the pressure that conductive plate 220 is born, and can pass through the not people having the same aspiration and interest to screw piston bar 310
Section makes to keep pressure stabilizing state in reactive tank 230, and the pressure that oxidation calcium tablet is born when ensureing every group of detection is identical, clinker and oxidation
Calcium tablet homogeneous reaction under pressure stabilizing state can be avoided effectively because influence of the error of quality to reaction is added in clinker, to have
Effect improves detection accuracy.And the present embodiment carries out boost pressure regulation using screw piston bar 310, helps accurately to control pressurization
Amount, prevents pressure stabilizing state in reactive tank 230 from larger fluctuation occur, further ensures detection accuracy.
It is additionally provided with pressure gauge 330 on the present embodiment Center Vent tube 300, monitors ventilation gas pressure, outside reaction member 200
Side cladding is then provided with insulating layer 140, is effectively kept the temperature to reactive tank 230, prevents its fast cooling from solidification phenomenon, shadow occur
It rings reaction to be normally carried out, to ensure detection accuracy.
Relief valve is additionally provided in the present embodiment in closed plate, is also equipped with switch valve on snorkel 300, when clinker just adds
Enter, after closed plate closing, rapidly the gas of expanded by heating can be discharged by relief valve, and then pressurization gas after relief valve closing
Can fill into makes to maintain pressure stabilizing state in reactive tank 230, can pass through screw piston bar during entire reaction detection
310, the cooperation of relief valve and switch valve remains the pressure stabilizing state in reactive tank 230, to ensure detection accuracy.
Schematically the utility model and embodiments thereof are described above, description is not limiting, attached drawing
Shown in be also one of the embodiments of the present invention, actual structure is not limited to this.So if this field
Those of ordinary skill enlightened by it, without deviating from the purpose of the present invention, not inventively design
Frame mode similar with the technical solution and embodiment, all should belong to the protection range of the utility model.
Claims (9)
1. a kind of clinker reactivity worth detection system, it is characterised in that: including furnace body (100), reaction member (200) and electric signal
Detector (500), reaction member (200) are set to the lower section of the interior test sample pipe (110) of furnace body (100), and reaction member (200) includes
The reactive tank (230) surrounded by side insulation board (210) and bottom conductive plate (220), reactive tank (230) is interior to be equipped with electrode
(240), electrode (240) passes through insulation board (210) and is connected with electrical signal detector (500), conductive plate (220) and electrical signal detection
Instrument (500) is connected.
2. a kind of clinker reactivity worth detection system according to claim 1, it is characterised in that: below conductive plate (220)
It is provided with pressure detecting instrument (400).
3. a kind of clinker reactivity worth detection system according to claim 1, it is characterised in that: it further include compress cell,
The compress cell includes snorkel (300), and the side of snorkel (300) is equipped with blowdown pipe (320), one end of snorkel (300)
It extends into reactive tank (230) and inwardly inflates.
4. a kind of clinker reactivity worth detection system according to claim 3, it is characterised in that: compress cell further includes spiral shell
It revolves piston rod (310), screw piston bar (310) is set to the one end of snorkel (300) far from reactive tank (230) and and snorkel
(300) spiral inner wall cooperates.
5. a kind of clinker reactivity worth detection system according to claim 1, it is characterised in that: reaction member (200) is outside
Side cladding is provided with insulating layer (140).
6. a kind of clinker reactivity worth detection system according to claim 1, it is characterised in that: on the outside of test sample pipe (110)
It is provided with silicon molybdenum heating rod (130).
7. a kind of clinker reactivity worth detection system according to claim 3, it is characterised in that: on snorkel (300) also
It is provided with pressure gauge (330).
8. a kind of clinker reactivity worth detection system according to claim 1, it is characterised in that: furnace body is also set on (100)
It is equipped with control panel (600).
9. a kind of clinker reactivity worth detection system according to claim 1-8, it is characterised in that: reaction member
(200) top is provided with the closed plate of openable closing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821403450.5U CN208833695U (en) | 2018-08-29 | 2018-08-29 | A kind of clinker reactivity worth detection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821403450.5U CN208833695U (en) | 2018-08-29 | 2018-08-29 | A kind of clinker reactivity worth detection system |
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| Publication Number | Publication Date |
|---|---|
| CN208833695U true CN208833695U (en) | 2019-05-07 |
Family
ID=66311079
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821403450.5U Expired - Fee Related CN208833695U (en) | 2018-08-29 | 2018-08-29 | A kind of clinker reactivity worth detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208833695U (en) |
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2018
- 2018-08-29 CN CN201821403450.5U patent/CN208833695U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190507 Termination date: 20200829 |
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| CF01 | Termination of patent right due to non-payment of annual fee |