CN207850859U - A kind of device of detection iron-containing charge integral high temperature metallurgical performance - Google Patents
A kind of device of detection iron-containing charge integral high temperature metallurgical performance Download PDFInfo
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- CN207850859U CN207850859U CN201721622570.XU CN201721622570U CN207850859U CN 207850859 U CN207850859 U CN 207850859U CN 201721622570 U CN201721622570 U CN 201721622570U CN 207850859 U CN207850859 U CN 207850859U
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Abstract
A kind of device of detection iron-containing charge integral high temperature metallurgical performance, device includes metal furnace shell, diamond spar pipe, resistive heater, resistance to compression fire resisting filler material, rotatable stage, metal struts, pressure sensor, reducing gas access, monitor camera device, fire resisting filler material is equipped on metal furnace shell inner wall, resistive heater is equipped on the inside of fire resisting filler material, diamond spar pipe is equipped on the inside of resistive heater, the upper end of metal furnace shell is equipped with hook；Lower section inside alundum tube is equipped with resistance to compression fire resisting filler material, and rotatable stage is arranged in alundum tube, is driven and is rotated by motor, and metal struts are vertically installed in the top of rotatable stage, deviate the position of rotatable stage central shaft；Monitor camera device and reducing gas access are additionally provided in metal furnace shell.The utility model can under the practical smelting condition of analog blast furnace, when reduction reaction occurs for iron-containing charge, under different temperatures, the high temperature metallurgical properties of the iron-containing charge of different reducing degrees are detected.
Description
Technical field
The utility model is related to field of metallurgy, more particularly to are suitable for inside analog blast furnace under practical smelting condition, to containing
The device that one or more single high temperature metallurgical properties of iron furnace material are detected.
Background technology
In blast furnace process, furnace charge is the basis of blast furnace process.The quality of iron-containing charge quality changes blast furnace process index
Into and the progress of ironmaking technology have important influence.It was verified that blast furnace is made to obtain the reasonable stove of good overall economic efficiency
Material structure must have good metallurgical performance.
The metallurgical performance of iron-containing charge can be divided into two classes, i.e. cold-performance and hot performance.Past, scholars were generally absorbed in
In the research (such as drop strength, cold conditions compression strength, drum strength) of iron-containing charge cold-performance, but in recent years both at home and abroad
Through it is well recognized that, the high temperature hot performance of iron-containing charge is only the important foundation of strengthening smelting.
This is because under hot environment and specific atmospheric condition in blast furnace, the cold-performance of iron-containing charge by
Factors influence, such as temperature, reducing atmosphere and the reaction of itself etc..In addition, iron-containing charge its performance after reduction
Directly affect gas fluid distrbution, stock column structure, the position of cohesive zone and the shape in blast furnace.Therefore the high temperature of iron-containing charge is grasped
Metallurgical performance suffers from very important meaning for steel research and the practical intensification of smelting process in BF production of guidance.
By the unremitting effort of several generation scholars, detection device and standard for iron-containing charge high temperature metallurgical properties with
It is gradually improved.But current detection device can only be detected the single metallurgical performance of iron-containing charge.Due to the structure of detection device
The difference of interior atmosphere and practical manually-operated error under difference, hot conditions are made, the iron content measured can be all caused
The metallurgical performance of furnace charge fluctuates；The metallurgical performance that iron-containing charge is detected also with plurality of devices and means adds scientific research
Experiment burden, consumptive material demand increase, expend more time and manpower
Utility model content
The purpose of this utility model is to provide a kind of device of detection iron-containing charge integral high temperature metallurgical performance, can simulate
Under the practical smelting condition of blast furnace, when reduction reaction occurs for iron-containing charge, under different temperatures, the iron-containing charge of different reducing degree
High temperature metallurgical properties be detected.It is easy to operate, can disposably to one or more single high temperature metallurgical properties of iron-containing charge into
Row detection greatly reduces scientific experiment burden and the cost of time, manpower.
To achieve the above object, the utility model is realized using following technical scheme：
A kind of device of detection iron-containing charge integral high temperature metallurgical performance, including metal furnace shell, diamond spar pipe, adding thermal resistance
Silk, resistance to compression fire resisting filler material, rotatable stage, metal struts, pressure sensor, reducing gas access, monitor camera device,
Metal furnace shell inner wall is equipped with fire resisting filler material, is equipped with resistive heater on the inside of fire resisting filler material, is set on the inside of resistive heater
There are diamond spar pipe, the upper end of metal furnace shell that hook is installed；Lower section inside alundum tube is equipped with resistance to compression fire resisting filler material, and rotation carries
Object platform is arranged in alundum tube, is driven and is rotated by motor, and metal struts are vertically installed in the top of rotatable stage, deviate rotation
Turn the position of objective table central shaft, metal struts are equipped with pressure sensor；It is additionally provided with monitor camera device in metal furnace shell
And the reducing gas access of connection situ reduction gas piping.
Further include coal gas reaction generating means, nitrogen cylinder, gas flow controller, the coal gas reacts generating means and nitrogen
Gas cylinder is separately connected gas flow controller, and gas flow controller passes through piping connection reducing gas access.
Compared with prior art, the utility model has the beneficial effects that：
The utility model can be under the practical smelting condition of analog blast furnace, when reduction reaction occurs for iron-containing charge, to not equality of temperature
Under degree, the high temperature metallurgical properties of the iron-containing charge of different reducing degree are detected.The utility model examines a variety of metallurgical performances
Measurement equipment comes together in one, can be detected simultaneously to one or more single metallurgical performances of iron-containing charge：By visual
Monitoring camera can directly observe the thermal stability and thermal spalling temperature of detection iron-containing charge；It can be with by crushing device
Detect the hot compression strength of furnace charge；It can going back by computer drawing furnace charge to the Real-time Feedback of Weight loss data by balance
Virgin curve；The reduction swellability performance of pelletizing can be detected by the comparison of the realtime graphic and initial pictures of different moments pelletizing.
To sum up, the method and device of the utility model simplifies traditional manipulative steps and workflow, improves detection efficiency.
Description of the drawings
Fig. 1 is a kind of process diagram of the device of detection iron-containing charge integral high temperature metallurgical performance of the utility model；
Fig. 2 is a kind of agent structure signal of the device of detection iron-containing charge integral high temperature metallurgical performance of the utility model
Figure；
Fig. 3 is 1 iron-containing charge weight loss of embodiment and reduction degree curve graph；
Fig. 4 is 1 pellet ore reduction swellability rate curve graph of embodiment；
Fig. 5 is 1 pellet thermal stable temperature curve graph of embodiment.
In figure：1- thermocouples；2- motors；3- resistance to compression fire resisting filler materials；The rotary objective tables of 4-；5- diamond spar pipes；6- is heated
Resistance wire；7- fire-resistant packing materials；8- metal struts；9- reducing gas accesses；10- monitor camera devices；11- is linked up with； 12-
Pressure sensor；13- is crushed control device；14- balances；15- controllers；16- gas flow controllers；17- coal gas reaction hair
Generating apparatus；18- nitrogen cylinders；19- air blowers.
Specific implementation mode
The utility model is described in detail below in conjunction with the accompanying drawings, it should be noted that the implementation of the utility model is not
It is limited to the following embodiments and the accompanying drawings.
As Figure 1-Figure 2, a method of detection iron-containing charge integral high temperature metallurgical performance, the specific method is as follows：
1) high temperature CO gas and N are used2Gas is according to 7:3 flow-rate ratio is made into reducing gas, the also Primordial Qi that will have been configured
Body is passed through in high temperature metallurgical properties comprehensive detection device；
2) reducing property for utilizing balance detection iron-containing charge, is weighed by balance under iron-containing charge reducing condition in real time
Reduced gravity situations calculate reduction of iron ore performance using following formula：
Wherein：RI：Reduction degree
m0：Initial iron-containing charge quality；
ma：Instantaneous mass before furnace charge reduction；
mb：Quality after furnace charge reduction；
wFeO：The mass fraction of iron-containing charge ferrous oxide；
wTFe：The mass fraction of the full iron of iron-containing charge；
3) iron-containing charge is placed on rotatable stage 4, metal struts 8, metal is arranged in 4 top of rotatable stage side partially
Compression bar is equipped with pressure sensor 12, and metal struts 4 are hot anti-for detecting iron-containing charge multiple spot perpendicular to rotatable stage 4
Compressive Strength；Calculation formula is as follows：
σ：The hot compression strength of iron-containing charge；
σ1…σn：Repeatedly measure the hot compression strength numerical value of corresponding points of iron-containing charge；
3) it observes the inner case of high temperature metallurgical properties comprehensive detection device in real time by camera monitoring device 10, and passes through
Formula judges iron-containing charge hot expansibility：
η：Iron-containing charge coefficient of thermal expansion；
d1：Real-time capture furnace charge grain size is monitored under hot state；
d0：Real-time capture furnace charge grain size is monitored under primary condition.
A kind of device of detection iron-containing charge integral high temperature metallurgical performance, including metal furnace shell, diamond spar pipe 5, adding thermal resistance
Silk 6, resistance to compression fire resisting filler material 3, rotatable stage 4, metal struts 8, pressure sensor 12, reducing gas access 9, monitoring are taken the photograph
As device 10, fire resisting filler material 7 is equipped on metal furnace shell inner wall, 7 inside of fire resisting filler material is equipped with resistive heater 5, is adding
5 inside of hot water radiation wire is equipped with diamond spar pipe 6, and the upper end of metal furnace shell is equipped with hook 11；Lower section inside alundum tube 5 is equipped with anti-
It presses fire resisting filler material 3, rotatable stage 4 to be arranged in alundum tube 5, is driven and rotated by motor 2, metal struts 8 are vertically arranged
In the top of rotatable stage 4, the position of deviation 4 central shaft of rotatable stage, metal struts 8 are equipped with pressure sensor 12；
It is additionally provided with monitor camera device 10 in metal furnace shell and connects the reducing gas access 9 of situ reduction gas piping.Metal
Compression bar 8 connects crushing device 12.
Further include coal gas reaction generating means 17, nitrogen cylinder 18, gas flow controller 16, the coal gas reaction fills
Set 17 and nitrogen cylinder 18 be separately connected gas flow controller 16, gas flow controller 16 is logical by piping connection reducing gas
Road 9.Coal gas reacts generating means 17, nitrogen cylinder 18, gas flow controller 16 for the also Primordial Qi inside analog blast furnace production
Atmosphere.Wherein coal gas reaction generating means 17 is used to prepare high temperature CO gas, and with the N in nitrogen cylinder 182Gas is proportionally matched
At reducing gas；Gas Flowrate Control System 16 is for adjusting the configuration of reducing gas and the real-time sight of gas flow flow velocity
It surveys.
Hook 11 is fixed at the top of metal furnace shell, for connecting balance 14.Gas outlet, outlet are additionally provided on metal furnace shell
Mouth also is located at the top of metal furnace shell；Reducing gas access 9 is air inlet, extend into the inside of alundum tube 5.The top of metal furnace shell
Portion is the lid that can be opened, and after opening lid loading iron-containing charge, then lid is closed and is fixed.Camera monitoring device 10
Be arranged on metal furnace shell top, the state of the iron-containing charge in stove can be observed, measured in real time in conjunction with thermocouple 1 in
Portion's temperature data can detect the thermal stability of iron-containing charge, the reduction swellability performance of thermal spalling temperature and pellet.
The bottom of rotatable stage 4 is equipped with shaft, and shaft extends downwardly metal furnace shell and connected by gear drive external
Motor 2, shaft are that thermocouple 1 is placed with inside hollow-core construction, and 1 top of thermocouple is close to rotatable stage 4.In rotation loading
It is additionally provided with groove on platform 4, for fixing iron-containing charge, furnace charge is avoided to be rolled in rotary course.
The temperature of iron-containing charge in the utility model, pressure and weight-loss ratio etc. data informations, pass through thermoelectricity respectively
Even 1, pressure sensor 12, balance 14 and monitor camera device 10 are acquired in real time, and whole process is calculated in real time by computer
And record data；The rotation of rotatable stage 4, the heat temperature raising control of resistive heater 6 and the control of crushing device 12 are equal
It is completed under the coordination of computer.
Embodiment 1：
Pellet used in certain factory's actual production is chosen in this experiment, is detected to its integral high temperature metallurgical performance, has
Body operating process is as follows：
1) start coal gas and react generating means, set CO gases target temperature as 900 DEG C, coal gas reacts adding for generating means
Hot program is started to warm up according to the temperature increasing schedule (0-900 DEG C, 5 DEG C/min) of setting.
2) pellet (one kind of iron-containing charge) more than ten grains for randomly selecting homogeneous grain diameter, are uniformly placed on rotatable stage
On groove in, close metal furnace shell after, by metal furnace shell hanging under balance 14.
3) basic parameter TFe 63.52wt%, the FeO 1.91wt% of iron-containing charge are inputted into computer, according to setting in advance
Fixed temperature increasing schedule (0-900 DEG C, 5 DEG C/min) in stove to heating, while by pressure sensor 12, the registration tune of balance 14
Zero；After being warming up to target temperature, in proportion by high temperature CO gas and N2It is passed through in stove.
4) start monitor camera device 10, record furnace charge initial volume image.
5) furnace charge metamorphosis is observed by monitor camera device 10 in real time, institute is right when furnace charge surface is cracking, broken
The temperature answered can reflect the thermal stability of furnace charge.
6) data are uploaded computer, calculate weight-loss ratio and reduction degree, and paint by 14 Real-time Feedback Weight loss data of balance in real time
The reduction weight-loss curve of furnace charge processed, as shown in Figure 3.
7) in arbitrary temp, start crushing device 12, test under the conditions of the temperature and reducing degree, the hot resistance to compression of furnace charge
Intensity after measuring once, starts motor 2, rotates rotatable stage 4, repeated priming crushing device 12, and multiple measurement obtains average
It is worth the hot compression strength as the furnace charge under this condition, experimental result is shown in Table 1.
Table 1：The hot compression strength of pellet under different reduction temperatures
8) it at any time, by being fed back to furnace charge real-time pictures, is compared with initial pictures, measures going back for pellet
Former expansion character.As shown in Figure 4.
9) furnace charge thermal stable temperature is as shown in Figure 5.
The embodiments of the present invention, the ordinary skill people of this field has been shown and described in the utility model as possible
Member to these embodiments in the case where not departing from the principles of the present invention and objective it is appreciated that can carry out a variety of changes
Change, modification, replace and deformation, have the right requirement and its equivalent of the scope of the utility model limits.
Claims (2)
1. it is a kind of detection iron-containing charge integral high temperature metallurgical performance device, which is characterized in that including metal furnace shell, diamond spar pipe,
Resistive heater, resistance to compression fire resisting filler material, rotatable stage, metal struts, pressure sensor, reducing gas access, monitoring are taken the photograph
As device, it is equipped with fire resisting filler material on metal furnace shell inner wall, resistive heater is equipped on the inside of fire resisting filler material, in adding thermal resistance
Silk inside is equipped with diamond spar pipe, and the upper end of metal furnace shell is equipped with hook；It is filled equipped with resistance to compression fire resisting lower section inside alundum tube
Material, rotatable stage are arranged in alundum tube, are driven and are rotated by motor, and metal struts are vertically installed in the upper of rotatable stage
Side, the position for deviateing rotatable stage central shaft, metal struts are equipped with pressure sensor；Monitoring is additionally provided in metal furnace shell
Photographic device and the reducing gas access for connecting situ reduction gas piping.
2. a kind of device of detection iron-containing charge integral high temperature metallurgical performance according to claim 1, which is characterized in that also
Including coal gas reaction generating means, nitrogen cylinder, gas flow controller, the coal gas reaction generating means and nitrogen cylinder connect respectively
Gas flow controller is connect, gas flow controller passes through piping connection reducing gas access.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721622570.XU CN207850859U (en) | 2017-11-29 | 2017-11-29 | A kind of device of detection iron-containing charge integral high temperature metallurgical performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721622570.XU CN207850859U (en) | 2017-11-29 | 2017-11-29 | A kind of device of detection iron-containing charge integral high temperature metallurgical performance |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109060587A (en) * | 2018-09-19 | 2018-12-21 | 辽宁科技大学 | A kind of detection of pyrometallurgy reducing property and sampler and method |
| CN110411852A (en) * | 2019-07-30 | 2019-11-05 | 重庆大学 | The measuring method of coke property alternation in a kind of blast furnace |
-
2017
- 2017-11-29 CN CN201721622570.XU patent/CN207850859U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109060587A (en) * | 2018-09-19 | 2018-12-21 | 辽宁科技大学 | A kind of detection of pyrometallurgy reducing property and sampler and method |
| CN110411852A (en) * | 2019-07-30 | 2019-11-05 | 重庆大学 | The measuring method of coke property alternation in a kind of blast furnace |
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