CN106896129B - A kind of device based on Displacement Saltation detection Iron Ore Powder assimilation temperature - Google Patents
A kind of device based on Displacement Saltation detection Iron Ore Powder assimilation temperature Download PDFInfo
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- CN106896129B CN106896129B CN201710252610.4A CN201710252610A CN106896129B CN 106896129 B CN106896129 B CN 106896129B CN 201710252610 A CN201710252610 A CN 201710252610A CN 106896129 B CN106896129 B CN 106896129B
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/02—Investigating or analyzing materials by the use of thermal means by investigating changes of state or changes of phase; by investigating sintering
- G01N25/12—Investigating or analyzing materials by the use of thermal means by investigating changes of state or changes of phase; by investigating sintering of critical point; of other phase change
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Abstract
The invention discloses a kind of device based on Displacement Saltation detection Iron Ore Powder assimilation temperature, belong to sintering mineral powder Characteristics Detection field.The present invention includes heating unit, and sample bench is provided with the heating unit, and heating unit is used to carry out heating heating to the Iron Ore Powder sample on sample bench；Detection unit, the detection unit include measurement bar, displacement transducer and force application mechanism；Temperature thermocouple is provided with the measurement bar, the temperature thermocouple is used for the temperature for detecting Iron Ore Powder sample；Force application mechanism is used to drive measurement bar to apply pressure to Iron Ore Powder sample；Displacement transducer is used for the Displacement Saltation for detecting measurement bar.The present invention detects Displacement Saltation of the Iron Ore Powder in heating process by detection unit, temperature when measurement bar is subjected to displacement mutation is the assimilation temperature of Iron Ore Powder, so as to assimilation temperature that is accurate, objectively detecting Iron Ore Powder, the accuracy for assimilating temperature detection is improved.
Description
Technical field
The present invention relates to iron ore powder sintering Characteristics Detection field, in particular, is related to a kind of based on Displacement Saltation detection
Iron Ore Powder assimilates the device of temperature.
Background technology
Nowadays in steel production in China flow, agglomeration for iron mine is to provide metallurgical performance excellent iron-smelting raw material for blast furnace
Important procedure.With pursuit of the iron and steel enterprise for furnace product quality and Business Economic Benefit, iron and steel enterprise needs to expand
Raw material sources are to reduce production cost, and still, its performance of separate sources Iron Ore Powder has very big difference, it is necessary to reasonably combined using
Requirement of the blast fumance to sintering deposit can be met.If simulating sintering generating process using sintered cup, its workload is big, experiment week
Phase is grown.Studied by Iron Ore Powder basic property and just show its superiority using different Iron Ore Powders come reasonably combined, can be a large amount of
Use manpower and material resources sparingly data, improves operating efficiency.
Wherein, the anabolic of Iron Ore Powder is one of iron ore powder sintering basic characteristic, i.e. Iron Ore Powder and the ability of CaO reactions,
What it was characterized is complexity of the Iron Ore Powder in sintering process generation liquid phase.It can be seen from thermodynamic argument, if Iron Ore Powder
It is lower to assimilate temperature, its easier reaction in sintering forms liquid phase, still, for heterogeneous sintering deposit, based on to burning
Tie the consolidation of ore deposit and the consideration of permeability of sintering material bed, it is undesirable that the coarse grain ore as core ore too melts, to avoid
The reduction of core ore and permeability of sintering material bed for playing consolidation skeleton function deteriorate and influence the quality and yield of sintering deposit.Cause
This, during Optimization Ore Matching, it is desirable to anabolic good Iron Ore Powder is arranged in pairs or groups with anabolic poor Iron Ore Powder and used, makes composite ore
It is anabolic be in suitable section, so as to improve the yield and quality of sintering deposit.But the detection for assimilating temperature for Iron Ore Powder does not have also
There is special detection device, need badly and develop a kind of device for being specifically applied to Iron Ore Powder assimilation temperature detection.
At present for the measurement of the minimum assimilation temperature of Iron Ore Powder, in document《The experiment of Iron Ore Powder and CaO assimilative capacicies is ground
Study carefully》(Wu Shengli, Liu Yu, Du Jianxin, wait University of Science ＆ Technology, Beijing journal, 2002,24 (3)：Anabolic inspection is proposed in 258-261)
Survey method is：By levigate Iron Ore Powder and pure CaO reagents cake of press is analyzed, Iron Ore Powder little cake sample is positioned over CaO little cake samples
On, put into a kind of compact sintering test equipment and sample is heated according to certain temperature increasing schedule, judge Iron Ore Powder assimilation characteristic
Method is special as assimilation slightly larger than the compound that Iron Ore Powder little cake one is enclosed using generation in Iron Ore Powder little cake and CaO little cake contact surfaces
Sign, the excellent of Iron Ore Powder assimilation characteristic is evaluated to reach minimum assimilation temperature of the temperature as Iron Ore Powder of this assimilation feature, and with this
It is bad.The experimental method must be wasted time and energy, artificially by that could judge its minimum assimilation temperature after attempting the experiment of different temperatures
Operation factors produce on experimental result inevitably to be influenceed, and is by visually judging its minimum assimilation temperature；It is not only accurate
Property it is poor and artificial subjective in detection process.
Through retrieval, patent document：A kind of method for measuring Iron Ore Powder and CaO anabolic reaction performances
(CN201510829051.X) a kind of, measuring method (CN201410603085.2) of Iron Ore Powder assimilation characteristic, one kind visualization
Measure device (CN201210385867.4) of Iron Ore Powder high temperature metallurgical properties etc., above-mentioned technical proposal is seen by camera device
Sample catastrophe in experimental furnace is examined, minimum temperature that Iron Ore Powder and CaO assimilate is determined with this；It is but true by observing
Surely the personal subjectivity for assimilating temperature is too big so that it is larger to assimilate the detection error of temperature, and detection process is complicated.
In document《Determine the exploration of Iron Ore Powder assimilation characteristic new method》(Wu's clang, Wang Meng, Zhao Yong, Northeastern University is waited to learn
Report, 2013,34 (7)：961-965) method of the middle measure Iron Ore Powder assimilation minimum temperature proposed is：By levigate Iron Ore Powder and
Pure CaO reagents cake of press is analyzed, by Iron Ore Powder little cake sample and CaO little cake samples, and memory in high temperature furnace is put into and is calcined, simultaneously
Imaged in heating roasting process, record time and temperature；XRD spectrum is recycled to determine anabolic reaction time started and temperature
Degree；Although the minimum assimilation temperature of assay method combination XRD technology auxiliary judgment Iron Ore Powders, Iron Ore Powder and CaO assimilations are first
Beginning state still needs people to compare XRD spectrum by visually going, and error as a result be present.
The content of the invention
1. invention technical problems to be solved
The problem of it is an object of the invention to overcome the assimilation temperature detection subjectivity of current Iron Ore Powder larger, there is provided a kind of
Based on the device of Displacement Saltation detection Iron Ore Powder assimilation temperature, sample is heated during inspection, and detect iron ore
Displacement Saltation of the powder in heating process, the assimilation temperature of Iron Ore Powder can be judged according to Displacement Saltation.
2. technical scheme
To reach above-mentioned purpose, technical scheme provided by the invention is：
A kind of device based on Displacement Saltation detection Iron Ore Powder assimilation temperature of the present invention, including heating unit, the heating
Sample bench is provided with unit, heating unit is used to carry out heating heating to the Iron Ore Powder sample on sample bench；Detection unit, should
Detection unit includes measurement bar, displacement transducer and force application mechanism；Temperature thermocouple is provided with the measurement bar, thermometric heat
Galvanic couple is used for the temperature for detecting Iron Ore Powder sample；Force application mechanism is used to drive measurement bar to apply pressure to Iron Ore Powder sample；Displacement
Sensor is used for the Displacement Saltation for detecting measurement bar.
Preferably, measurement bar is correspondingly arranged with sample bench, and it is close that the thermometric end of the temperature thermocouple is arranged at measurement bar
One end of sample bench, the temperature thermocouple are used for the temperature for detecting Iron Ore Powder sample.
Preferably, the bottom of described measurement bar is provided with sample press member, the base area of the sample press member
More than the cross-sectional area of measurement Iron Ore Powder sample.
Preferably, described temperature thermocouple is provided with thermocouple horizontal segment, and thermometric end is arranged at thermocouple horizontal segment
End, the end of the thermocouple horizontal segment extends to the marginal position of Iron Ore Powder sample.
Preferably, described thermometric end is connected with auxiliary thermometric bar, and the auxiliary thermometric bar is vertically set；Auxiliary is surveyed
The distance of warm bar and Iron Ore Powder sample edge is L, then 1mm<L<2mm.
Preferably, auxiliary thermometric bar is made up of carborundum.
Preferably, working face is provided with the top of described sample bench, the working face is parallel to sample press member
Bottom surface.
Preferably, CaO tablettings are arranged on working face, and the CaO tablettings are used to place Iron Ore Powder sample, aid in thermometric bar
Bottom contacted with CaO wafer surfaces.
Preferably, sample bench is provided with the heating furnace of heating unit, is provided with working face at the top of sample bench, the work
Plane is located at the central region of heating furnace.
Preferably, in addition to control process unit, heating unit and detection unit are connected with control process unit, at control
Reason unit is used for the temperature-rise period for controlling heating unit；Control process unit is used for the displacement signal for handling displacement transducer simultaneously
With the pressure signal of force application mechanism.
3. beneficial effect
Using technical scheme provided by the invention, compared with prior art, have the advantages that：
(1) a kind of device based on Displacement Saltation detection Iron Ore Powder assimilation temperature of the invention, including heating unit and inspection
Unit is surveyed, sample is heated by heating unit during inspection, and Iron Ore Powder is detected by detection unit and added
Displacement Saltation in thermal process, temperature when measurement bar is subjected to displacement mutation are the assimilation temperature of Iron Ore Powder, so as to accurate, visitor
The assimilation temperature for detecting Iron Ore Powder seen；Pressed with respect to naked eyes or image analysis system observation Iron Ore Powder sample with CaO
Occur the deformation such as angle of wetting between piece to judge that Iron Ore Powder assimilates temperature methods, improve accuracy, the inspection of assimilation temperature detection
Efficiency is surveyed, the data of reliable iron ore powder sintering performance are provided for sintering production；
(2) a kind of device based on Displacement Saltation detection Iron Ore Powder assimilation temperature of the invention, thermometric end are applied positioned at sample
The marginal position of splenium part, the i.e. end of thermocouple horizontal segment extend to the marginal position of Iron Ore Powder sample, temperature thermocouple
Thermometric end improves the accuracy of Iron Ore Powder sample environment temperature detection, and then improve close to the marginal position of Iron Ore Powder sample
The accuracy of Iron Ore Powder assimilation temperature detection；
(3) a kind of device based on Displacement Saltation detection Iron Ore Powder assimilation temperature of the invention, thermometric end and auxiliary thermometric
Bar is connected, and auxiliary thermometric bar is arranged at the marginal position of sample press member, and aids in thermometric bar vertically to set, and aids in
Thermometric bar is set with Iron Ore Powder sample sides aligned parallel, and the bottom of auxiliary thermometric bar contacts with CaO wafer surfaces so that auxiliary thermometric
Temperature of the Iron Ore Powder sample in vertical dimension rapidly can be transferred to temperature thermocouple by bar, improve the standard of assimilation temperature detection
True property；
(4) a kind of device based on Displacement Saltation detection Iron Ore Powder assimilation temperature of the invention, heating unit and detection are single
Member is connected with control process unit, and the force control module of control process unit is used to control force application mechanism, so as to control measurement
Bar applies constant pressure to Iron Ore Powder sample；Information acquisition module is used to gathering and handling the displacement for handling displacement transducer
The pressure signal of signal and force application mechanism, the automatic detection of Iron Ore Powder assimilation temperature is realized, improves detection efficiency and inspection
The accuracy of survey.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is Fig. 1 partial enlargement structural representation；
Fig. 3 is the partial enlargement structural representation of Fig. 2 a-quadrant.
Label declaration in schematic diagram：
100th, heating unit；110th, sample bench；111st, CaO tablettings；112nd, working face；113rd, thermocouple in stove；120、
Heating furnace；
200th, detection unit；210th, measurement bar；211st, sample press member；220th, displacement transducer；230th, force application mechanism；
240th, temperature thermocouple；241st, thermocouple horizontal segment；242nd, thermometric bar is aided in；243rd, thermometric end；
300th, control process unit；
400th, Iron Ore Powder sample.
Embodiment
Accompanying drawing hereafter with reference to the detailed description of the exemplary embodiment of the present invention, the accompanying drawing forms one of description
Point, show the enforceable exemplary embodiment of the present invention as example in the figure.Although these exemplary embodiment quilts
Fully describe in detail to enable those skilled in the art to implement the present invention, it is to be understood that can realize other embodiment and
Can without departing from the spirit and scope of the present invention to the present invention various changes can be made.Hereafter to embodiments of the invention
More detailed description is not limited to required the scope of the present invention, and just to be illustrated and do not limit pair
The description of the features of the present invention and feature, to propose to perform the best mode of the present invention, and it is sufficient so that those skilled in the art
The present invention can be implemented.Therefore, the scope of the invention is only defined by the appended claims.
Hereafter detailed description of the present invention and example embodiment can be more fully understood with reference to accompanying drawing, wherein the present invention
Element and feature are identified by reference.
Embodiment 1
With reference to Fig. 1, Fig. 2 and Fig. 3, a kind of device based on Displacement Saltation detection Iron Ore Powder assimilation temperature of the present embodiment,
Including heating unit 100 and detection unit 200；Wherein heating unit 100 includes sample bench 110 and heating furnace 120, sample bench
110 are arranged in heating furnace 120, and heating unit 100 is used to carry out heating heating to the Iron Ore Powder sample 400 on sample bench 110；
Heating furnace 120 carries out heating heating (as shown in Figure 1) by electrical heating wire to the Iron Ore Powder sample 400 on sample bench 110, certainly
Heating furnace 120 can also be heated by other means, such as：Infrared heating etc..
Detection unit 200 includes measurement bar 210, displacement transducer 220 and force application mechanism 230；The top of measurement bar 210 with
Force application mechanism 230 is connected, and force application mechanism 230 is used to drive measurement bar 210 to apply pressure to Iron Ore Powder sample 400；Measurement bar 210
Bottom be provided with sample press member 211, the base area of the sample press member 211 is more than the cross section of measurement sample
Product, the measurement sample is Iron Ore Powder sample 400, and the basal diameter of the present embodiment sample press member 211 is
Temperature thermocouple 240 is provided with measurement bar 210, the temperature thermocouple 240 is arranged at the inside of measurement bar 210,
The thermometric end 243 of temperature thermocouple 240 is arranged at measurement bar 210 and used close to one end of sample bench 110, the temperature thermocouple 240
In the temperature of detection Iron Ore Powder sample 400.Displacement transducer 220 is used for the Displacement Saltation for detecting measurement bar 210, the displacement sensing
Device 220 is high-precision grating displacement sensor, and then accurately detects the Displacement Saltation of measurement bar 210.And collect
Measurement bar 210 is subjected to displacement temperature during mutation, and the temperature is the assimilation temperature of Iron Ore Powder.
The measurement bar 210 of the present embodiment is correspondingly arranged with sample bench 110, i.e. the axle center of measurement bar 210 and sample bench 110
Axle center is on same straight line；The top of sample bench 110 is provided with working face 112, and CaO tablettings 111 are arranged at working face 112
On, CaO tablettings 111 are arranged at the central part of working face 112, and the CaO tablettings 111 are used to place Iron Ore Powder sample 400,
With Iron Ore Powder anabolic reaction occurs for CaO tablettings 111 under the high temperature conditions, and the processing method of CaO tablettings 111 is：Weigh with scale
2g purity is 98.0% CaO powder, is pressed under 20MPa pressureCaO tablettings 111.Working face
112 parallel to sample press member 211 bottom surface so that Iron Ore Powder sample 400 is in working face 112 and sample press member
Stress evenly, improves the accuracy of Displacement Saltation detection, and then improve the accuracy of assimilation temperature detection between 211.
Using the detection method of the Iron Ore Powder assimilation temperature of the present invention：For during heating measurement bar 210 to iron ore
Powder sample 400 applies pressure, detects the temperature of Iron Ore Powder sample 400 and the Displacement Saltation of measurement bar 210 in temperature-rise period, measurement
Temperature when bar 210 is subjected to displacement mutation is the assimilation temperature of Iron Ore Powder；Comprise the following steps that：
Step 1: prepare sample
The Iron Ore Powder of the present embodiment is Yang Di powder, by Yang Di dried bean noodles it is dry after be pressed into Iron Ore Powder sample 400, by iron ore to be measured
Grinding is into granularity<0.147 μm of fine-powdered, wherein the percent of pass of 200 mesh is 80%, 4h is dried at 105 DEG C, is pressed in 10MPa
It is pressed under powerIron Ore Powder sample 400 it is (wherein a diameter ofHighly it is 5mm)；By Iron Ore Powder sample
400 are placed at the top centre of CaO tablettings 111, ensure the stability that measurement Iron Ore Powder sample 400 is placed；
Step 2: detection assimilation temperature
The Iron Ore Powder sample 400 of Yang Di powder is positioned in the CaO tablettings 111 of heating unit 100；Heating unit 100
Heating furnace 120 heats to Iron Ore Powder sample 400, and the heating rate of heating furnace 120 is 10 DEG C/min, when Iron Ore Powder sample
When 400 temperature reach 1000~1150 DEG C, preferably 1100 DEG C of the present embodiment, force application mechanism 230 drives measurement bar 210 to Iron Ore Powder
Sample 400 applies pressure, and it is 0.5~20N that sample press member 211 applies constant pressure to Iron Ore Powder sample 400, the present embodiment
It is preferred that 1N, and the displacement recorded now is 0；Continuing in temperature-rise period, the heating rate of adjustment heating furnace 120 is 2 DEG C/min,
Temperature thermocouple 240 detects the temperature of Iron Ore Powder sample 400 during heating, displacement transducer 220 detects measurement bar 210
Displacement Saltation, the temperature that temperature thermocouple 240 detects when measurement bar 210 is subjected to displacement mutation are 1210 DEG C, and Displacement Saltation is extremely
0.5mm；Temperature when measurement bar 210 is subjected to displacement mutation is the assimilation temperature of Iron Ore Powder.And pass through observation in the prior art
The assimilation temperature of detection is 1223 DEG C, and the present invention substantially increases the accuracy of detection.
For applicant of the present invention by prolonged research and probe, research finds that Iron Ore Powder can occur at 400-1000 DEG C
Solid phase reaction, and cause Iron Ore Powder sample 400 that there is preferable mechanical strength after solid phase reaction, and before 400 DEG C by
It is poor in the intensity of Iron Ore Powder, if applying pressure to Iron Ore Powder sample 400, easily cause Iron Ore Powder sample 400 and damage or send out
Give birth to change in displacement and influence subsequent detection；At 400-1000 DEG C due to the generation curing reaction of Iron Ore Powder during can occur in
The solidification of portion's structure or crystal modification, apply pressure if here, easily cause subsequent displacements abrupt climatic change assimilation temperature
Inaccuracy；The constant force applied at 1000~1150 DEG C is smaller, has preferably machinery before assimilation in Iron Ore Powder
Intensity, it can't deform upon or deform, now displacement transducer 220 is not measured by change in displacement, displacement sensing substantially
The position of device 220 is also substantially stationary to get off；When reaching assimilation temperature, Iron Ore Powder sample 400 and CaO tablettings 111 are assimilated
Reaction, Iron Ore Powder sample 400 and the interface of CaO tablettings 111 start to generate liquid phase, due to the effect of the constant pressure of measurement bar 210, survey
Obvious Displacement Saltation (i.e. the position of measurement bar 210 has larger change in displacement), displacement transducer occur downwards for gauge rod 210
220 detect Displacement Saltation, and the assimilation temperature using the temperature corresponding to the moment as tested Iron Ore Powder.
Because the liquid phase generation in assimilation process begins at the low melting point chemical combination of the solid phase reaction generation of CaO and Iron Ore Powder
Thing, when anabolic reaction starts, low-melting compound growing amount is less, and because the mobility of low-melting compound is poor,
The deformation extent very little of Iron Ore Powder sample 400；When assimilation process just starts, it is difficult to determine Iron Ore Powder by the method for observation
Whether assimilate；When obvious deformation occurs, it is actually minimum that the temperature that now detects to obtain has been over Iron Ore Powder
Assimilate temperature, therefore have impact on the accuracy of Iron Ore Powder assimilation temperature detection.The invention propose by based on measurement
The method that bar 210 is subjected to displacement abrupt climatic change assimilation temperature, in the state of being pressed to sample, the shape for detecting sample becomes
Change, and based on the change in shape of sample pressurized state, judge the assimilation temperature of Iron Ore Powder, realize the standard that Iron Ore Powder assimilates temperature
Really, objectively detection；Relative to only by between naked eyes or image analysis system observation Iron Ore Powder sample 400 and CaO tablettings 111
There are the deformation such as angle of wetting to judge that Iron Ore Powder assimilates temperature methods, improve accuracy, the detection efficiency of assimilation temperature detection
Height, the data of reliable iron ore powder sintering performance are provided for sintering production.
Embodiment 2
With embodiment 1, difference is the substance of the present embodiment：Temperature thermocouple 240 is provided with thermocouple
Horizontal segment 241, thermometric end 243 are arranged at the end (as shown in Figure 2) of thermocouple horizontal segment 241, and the thermocouple horizontal segment 241 is set
It is placed in sample press member 211, thermometric end 243 is located at the marginal position of sample press member 211, i.e. thermocouple horizontal segment
241 end extends to the marginal position of Iron Ore Powder sample 400, and the thermometric end 243 of temperature thermocouple 240 is close to Iron Ore Powder sample
400 marginal position, so as to improve the accuracy of the environment temperature of Iron Ore Powder sample 400 detection, and then it is same to improve Iron Ore Powder
Change the accuracy of temperature detection, the data of reliable iron ore powder sintering performance are provided for sintering production.
Embodiment 3
With embodiment 1, difference is the substance of the present embodiment：Thermometric end 243 is with aiding in the phase of thermometric bar 242
Even, auxiliary thermometric bar 242 is arranged at the marginal position of sample press member 211, and aids in thermometric bar 242 vertically to set
Put；The distance for aiding in thermometric bar 242 and the edge of Iron Ore Powder sample 400 is L, then 1mm<L<2mm, the present embodiment L=1.5mm, should
The material for aiding in thermometric bar 242 is carborundum；Aid in thermometric bar 242 to be set with the sides aligned parallel of Iron Ore Powder sample 400, aid in thermometric
The bottom of bar 242 contacts with the surface of CaO tablettings 111.The auxiliary thermometric bar 242 of the present embodiment close to the edge of Iron Ore Powder sample 400,
So that Iron Ore Powder sample 400 rapidly can be transferred to temperature thermocouple 240 by auxiliary thermometric bar 242 in the temperature of vertical dimension,
So that the directly detection of temperature thermocouple 240 obtains the mean temperature in region residing for Iron Ore Powder sample 400, so as to improve assimilation temperature
Spend the accuracy of detection.
In addition, being provided with sample bench 110 in the heating furnace 120 of heating unit 100, the top of sample bench 110 is provided with work
Plane 112, the working face 112 are located at the central region of heating furnace 120, and the central region is constant temperature zone.So as to ensure iron
Miberal powder sample 400 is under the detection temperature of relative constancy, avoids temperature difference of the Iron Ore Powder sample 400 at diverse location,
Improve the accuracy and objectivity of assimilation temperature detection.
Embodiment 4
With embodiment 1, difference is the substance of the present embodiment：Also include control process unit 300, heating is single
Member 100 and detection unit 200 are connected with control process unit 300, and control process unit 300 includes temperature control modules, force
Control module and information acquisition module, temperature control modules are used for the temperature-rise period for controlling heating unit 100, temperature control modules
The heating rate of heating unit 100 can be adjusted.
The force control module of control process unit 300 be used for control force application mechanism 230, so as to control measurement bar 210 to
Iron Ore Powder sample 400 applies constant pressure；Information acquisition module is used to gathering and handling the position for handling displacement transducer 220
The pressure signal of shifting signal and force application mechanism 230.It is achieved thereby that the automatic detection of Iron Ore Powder assimilation temperature, improves detection
The accuracy of efficiency and testing result.
Embodiment 5
With embodiment 1, difference is the substance of the present embodiment：The bottom of sample press member 211 is also provided with
There is one layer of CaO tabletting 111, the CaO tablettings 111 of the bottom of sample press member 211 and Iron Ore Powder sample 400 during detection
Top contact, it is achieved thereby that Iron Ore Powder sample 400 is during heating, at the same with the CaO tablettings 111 of upper and lower part
Simultaneous reactions, apply pressure to Iron Ore Powder sample 400 during heating, when Iron Ore Powder is assimilated, mutation effect is more
Substantially, and then the accuracy of detection is improved.
Embodiment 6
With embodiment 1, difference is the substance of the present embodiment：Thermocouple in stove is provided with sample bench 110
113 (as shown in Figure 3), thermocouple 113 is used for the temperature for detecting the bottom of Iron Ore Powder sample 400 in the stove, so as to be used for and thermometric
The result of thermocouple 240 is corresponded to and corrected, and improves the accuracy of temperature detection.
The present invention is described in detail above in conjunction with specific exemplary embodiment.It is understood, however, that it can not take off
Various modifications and variations are carried out in the case of from the scope of the present invention being defined by the following claims.Detailed description and drawings
Should be to be considered only as it is illustrative and not restrictive, if there is any such modifications and variations, then they all will
Fall into the scope of the present invention described here.In addition, background technology is intended to illustrate the Development Status of this technology and meaning,
It is not intended to limit the application field of the present invention or the application and the present invention.
More specifically, although the exemplary embodiment of the present invention has been described herein, but the invention is not limited in
These embodiments, but including those skilled in the art according to above detailed description it can be appreciated that it is modified, omit, example
Such as any and whole embodiments of the combination between each embodiment, adaptive change and/or replacement.Restriction in claim
It can widely be explained according to the language used in claim, and be not limited in foregoing detailed description or implementing to be somebody's turn to do
The example described during application, these examples are considered as nonexcludability.For example, in the present invention, term " preferably "
Not exclusively, here it means that " preferably, but be not restricted to that ".It is in office where to arrange in method or process claims
Any step lifted can in any order perform and be not limited to the order proposed in claim.Therefore, model of the invention
Enclose only to be determined by appended claims and its legal equivalents, rather than by descriptions and examples given above Lai really
It is fixed.
Claims (9)
- A kind of 1. device based on Displacement Saltation detection Iron Ore Powder assimilation temperature, it is characterised in that：IncludingHeating unit (100), the heating unit (100) is interior to be provided with sample bench (110), and heating unit (100) is used for sample Iron Ore Powder sample (400) on platform (110) carries out heating heating；Detection unit (200), the detection unit (200) include measurement bar (210), displacement transducer (220) and force application mechanism (230)；Temperature thermocouple (240) is provided with the measurement bar (210), the temperature thermocouple (240) is used to detect Iron Ore Powder The temperature of sample (400), described temperature thermocouple (240) are provided with thermocouple horizontal segment (241), and thermometric end (243) is set The end of thermocouple horizontal segment (241) is placed in, the end of the thermocouple horizontal segment (241) extends to Iron Ore Powder sample (400) Marginal position；Force application mechanism (230) is used to drive measurement bar (210) to apply pressure to Iron Ore Powder sample (400)；Displacement transducer (220) it is used for the Displacement Saltation for detecting measurement bar (210).
- A kind of 2. device based on Displacement Saltation detection Iron Ore Powder assimilation temperature according to claim 1, it is characterised in that： Measurement bar (210) is correspondingly arranged with sample bench (110), and the thermometric end (243) of the temperature thermocouple (240) is arranged at measurement bar (210) close to one end of sample bench (110), the temperature thermocouple (240) is used for the temperature for detecting Iron Ore Powder sample (400).
- A kind of 3. device based on Displacement Saltation detection Iron Ore Powder assimilation temperature according to claim 1, it is characterised in that： The bottom of described measurement bar (210) is provided with sample press member (211), the base area of the sample press member (211) More than the cross-sectional area of measurement Iron Ore Powder sample (400).
- A kind of 4. device based on Displacement Saltation detection Iron Ore Powder assimilation temperature according to claim 3, it is characterised in that： Described thermometric end (243) is connected with auxiliary thermometric bar (242), and the auxiliary thermometric bar (242) is vertically set；Auxiliary is surveyed Warm bar (242) and the distance at Iron Ore Powder sample (400) edge are L, then 1mm<L<2mm.
- A kind of 5. device based on Displacement Saltation detection Iron Ore Powder assimilation temperature according to claim 4, it is characterised in that： Auxiliary thermometric bar (242) is made up of carborundum.
- A kind of 6. device based on Displacement Saltation detection Iron Ore Powder assimilation temperature according to claim 4, it is characterised in that： Working face (112) is provided with the top of described sample bench (110), the working face (112) is parallel to sample press member (211) bottom surface.
- A kind of 7. device based on Displacement Saltation detection Iron Ore Powder assimilation temperature according to claim 6, it is characterised in that： CaO tablettings (111) are arranged on working face (112), and the CaO tablettings (111) are used to place Iron Ore Powder sample (400), aid in The bottom of thermometric bar (242) contacts with CaO tablettings (111) surface.
- 8. a kind of device based on Displacement Saltation detection Iron Ore Powder assimilation temperature according to claim any one of 1-7, its It is characterised by：Sample bench (110) is provided with the heating furnace (120) of heating unit (100), is provided with the top of sample bench (110) Working face (112), the working face (112) are located at the central region of heating furnace (120).
- A kind of 9. device based on Displacement Saltation detection Iron Ore Powder assimilation temperature according to claim 8, it is characterised in that： Also including control process unit (300), heating unit (100) and detection unit (200) are connected with control process unit (300), Control process unit (300) is used for the temperature-rise period for controlling heating unit (100)；Control process unit (300) is used to handle position The displacement signal of displacement sensor (220) and the pressure signal of force application mechanism (230).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102288631A (en) * | 2011-06-30 | 2011-12-21 | 首钢总公司 | Method for measuring iron ore powder assimilation degree in sintering process |
| CN103529168A (en) * | 2013-09-29 | 2014-01-22 | 武汉钢铁(集团)公司 | Method and device for testing assimilability of iron ore powder |
| CN104359934A (en) * | 2014-10-17 | 2015-02-18 | 武汉钢铁(集团)公司 | Testing method of iron mine powder sintering and assimilating flux amount and speed |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102288631A (en) * | 2011-06-30 | 2011-12-21 | 首钢总公司 | Method for measuring iron ore powder assimilation degree in sintering process |
| CN103529168A (en) * | 2013-09-29 | 2014-01-22 | 武汉钢铁(集团)公司 | Method and device for testing assimilability of iron ore powder |
| CN104359934A (en) * | 2014-10-17 | 2015-02-18 | 武汉钢铁(集团)公司 | Testing method of iron mine powder sintering and assimilating flux amount and speed |
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