CN108760558A - For detecting the method for ingredient and water rate measurement method in steel hot wafering - Google Patents
For detecting the method for ingredient and water rate measurement method in steel hot wafering Download PDFInfo
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- CN108760558A CN108760558A CN201810314820.6A CN201810314820A CN108760558A CN 108760558 A CN108760558 A CN 108760558A CN 201810314820 A CN201810314820 A CN 201810314820A CN 108760558 A CN108760558 A CN 108760558A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/04—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
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Abstract
The present invention provides a kind of for detecting the method for ingredient and water rate measurement method in steel hot wafering, and the method for detecting ingredient in steel hot wafering includes：S1, sample preparation crushing：Steel hot wafering granularity is broken into using mechanical equipment to be 20mm broken materials below and sample acquisition sample of weighing；S2, hot melt：Crucible equipped with sample is put into heating furnace and is heated to sample and is completely melt；S3, cooling and shaping：After stopping heating, crucible is taken out, and crucible is placed on refractory brick it is cooling, by the hot-melt object in crucible through be cooled and shaped take out and strike, clean out after obtain finished product, which is placed in water further cooling；S4, sampling analysis：Finished product is subjected to cutting sampling and obtains sample, and by after sample sanding and polishing, composition detection is carried out to sample using spectrum analysis.The present invention obtains the uniform fusant of ingredient using the broken hot melting process of hot wafering and carries out spectrum analysis detection, can improve steel scrap utilization rate compared with the content of each element in Accurate Determining hot wafering.
Description
Technical field
The present invention relates to the present invention relates to metallurgy industry constituent analysis technical field, more particularly to one kind for detecting steel
The method of ingredient and water rate measurement method in hot wafering.
Background technology
Slag is the byproduct generated in metallurgy industry steelmaking process, yield be generally crude steel yield 10%~
20%, with the increase of iron and steel output, slag yield is also being continuously increased, to the serious threat of environment structure.Slag is by giving birth to
Various oxides and these oxides and solvent made of the impurity such as silicon, manganese, phosphorus, sulphur in iron aoxidize in fusion process are anti-
The salt that should be generated is formed.Containing there are many useful components in slag：Metallic iron 2%~8%, calcium oxide 40%~60%, oxygen
Change magnesium 3%~10%, manganese oxide 1%~8%, therefore can be used as the use of Ferrous Metallurgy raw material.If metallic iron is calculated by 5%, 100,000,000 tons
Just about 5,000,000 tons of containing metal iron in slag.Therefore, the processing of iron and steel enterprise's slag and recycling problem are increasingly by weight
Depending on.
The metallic iron selected in slag, referred to as slag steel, slag steel generally can be divided into bulk slag steel, small dreg piece by size
Steel and slag particle, bulk slag steel can just enter stove after need to cutting, small dreg piece steel can directly enter stove, and diameter 15mm is below general
Referred to as slag particle, through moisture, the reasons such as particle is tiny, slag particle, which directly enters stove, may cause the accidents such as splash to occur.
Slag particle, which is transported to metal fever processing equipment, to be heated, about 700 DEG C of heating temperature, heat treatment
It is handled again through forcing press briquetting afterwards and can be obtained slag particle steel hot wafering finished product, commonly referred to as hot wafering.According to hot wafering
The technological process of production it is found that hot wafering be after the particle size diameter 15mm slag particles below selected by slag are heat-treated again
It is suppressed through forcing press, general cylindrical, its main feature is that uneven components, routine sampling can not carry out chemical analysis, give
Test strips carry out certain difficulty, influence the organization of production and product quality of steel mill.
Invention content
The purpose of the present invention is at least solving one of drawbacks described above and deficiency, which is achieved through the following technical solutions
's.
The present invention provides a kind of method for detecting ingredient in steel hot wafering, it is described for detect in steel hot wafering at
Point method include：
S1, sample preparation crushing：Using mechanical equipment by steel hot wafering be broken into granularity be 20mm broken materials below, using point
Analysis balance, which is sampled the broken material and weighs, obtains sample；
S2, hot melt：Crucible equipped with the sample is put into heating furnace and is heated to the sample and is completely melt；
S3, cooling and shaping：After stopping heating, the crucible is taken out, and the crucible is placed on refractory brick carry out it is cold
But, by the hot-melt object in the crucible through be cooled and shaped take out and strike, clean out after obtain finished product, and the finished product is set
Yu Shuizhong is further cooled down；
S4, sampling analysis：The finished product is subjected to cutting sampling and obtains sample, and by after the sample sanding and polishing, profit
Composition detection is carried out to the sample with spectrum analysis.
Further, in the step S1 sample described in 2kg is accurately weighed using the assay balance.
Further, further include being sieved to broken broken material in the step S1.
Further, the step S3 includes：
S31, after stopping heating, the crucible taking-up equipped with fusant is placed on refractory brick using crucible tongs and carries out the
It is primary cooling；
S32, when the melt surface blacks, the crucible is broken up using iron hammer, and by the melt surface
Slag blanket destroy cleared up after obtain finished product；
S33, when the finished product naturally cools to kermesinus, place it in water that carry out second cooling.
Further, the shape of the finished product is pie.
Further, further include drying the further finished product after cooling, and use after the step S3
The assay balance weighs to the finished product.
Further, the cutting sampling includes that the finished product is placed on anodontia cutting machine to cut, and to the cutting
Samples weighing afterwards.
Further, the sanding and polishing include the sample that will be obtained after cutting sampling be placed on belt sander into
Row sanding and polishing.
Further, using Efco-Northrup furnace as the heating furnace.
The present invention also provides a kind of method for the water rate measuring steel hot wafering, the water rate measurement method includes：
X1, steel hot wafering is broken into granularity as 20mm broken materials below using mechanical equipment, uses assay balance pair
The broken material is sampled and weighs, and obtains the sample that quality is m；
X2, the sample that the quality is m is put into crucible, and the crucible for being placed with the sample is put into heating furnace
In be heated to the sample and be completely melt；
X3, after stopping heating, the crucible is taken out using crucible tongs, and the crucible is placed on refractory brick carry out it is cold
But, by the hot-melt object in the crucible through be cooled and shaped take out and using iron hammer impact, clean out after melted after at
Product, and the finished product is placed in water and is further cooled down；
X4, using the assay balance its quality m is obtained to through the water logging finished product after cooling weigh1；
X5, according to water rate formula：Water rate v=m1/ m calculates the water rate for obtaining the steel hot wafering.
Advantages of the present invention is as follows：
(1) present invention uses the sample examination technique for being crushed remelting to solve the chemical examination that hot wafering uneven components are brought inclined
Poor problem；
(2) present invention solves the problems, such as inclusion content in hot wafering to the measurement of hot wafering water rate；
(3) present invention can be contained using spectrum analysis compared with the constituent content of Accurate Determining hot wafering, especially trace element
The measurement of amount；
It (4), can be according to detection after carrying out accurate composition detection to hot wafering using detection method provided by the invention
As a result and the requirement of steel grade is smelted, is adjusted in time into stove iron and steel stock structure, improves steel scrap utilization rate.
Description of the drawings
By reading the detailed description of hereafter preferred embodiment, various other advantages and benefit are common for this field
Technical staff will become clear.Attached drawing only for the purpose of illustrating preferred embodiments, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.
Fig. 1 is the flow chart provided in an embodiment of the present invention for detecting the method for ingredient in steel hot wafering；
Fig. 2 is the flow chart of water rate measurement method provided in an embodiment of the present invention；
Specific implementation mode
The illustrative embodiments of the disclosure are more fully described below with reference to accompanying drawings.Although showing this public affairs in attached drawing
The illustrative embodiments opened, it being understood, however, that may be realized in various forms the disclosure without the reality that should be illustrated here
The mode of applying is limited.It is to be able to be best understood from the disclosure on the contrary, providing these embodiments, and can be by this public affairs
The range opened completely is communicated to those skilled in the art.
Fig. 1 shows that is provided according to the embodiment of the present invention is used to detect the method for component content in steel hot wafering
Flow chart.As shown in Figure 1, the present invention will steel hot wafering be crushed remelting after using spectrum analysis it is in the block to steel hot pressing it is each mainly at
Divide and carry out analytical test, specific steps include：
S1, sample preparation crushing
It is 20mm broken materials below that molding steel hot wafering, which is crushed to granularity, using mechanical equipment, uses assay balance
Accurately the broken material of certain mass m (such as 2kg) is weighed as sample and is recorded, and the precision of assay balance is accurate to 0.0001g.
To prevent the sample of big granularity from entering in heating furnace, and to ensure that sample is completely melt in heating furnace, may be used also
To be sieved after broken, sample is screened, the mesh of sieve is 15mm~20mm.
S2, hot melt
The sample weighed is put into graphite crucible, is put into togerther in heating furnace that be heated to sample completely molten with graphite crucible
Change.
In preferred implementation, sensing heating, the rapid melting in the form of heat transfer are carried out to graphite crucible using Efco-Northrup furnace
Hot wafering broken material in graphite crucible, and so that sample is completed ingredient in graphite crucible uniform for the temperature for controlling graphite crucible
Change, Efco-Northrup furnace power is preferably 200~280KW.
It is heated in addition, other heating furnaces also can be used, for example, by using electric arc furnaces, is generated heat using the electrode starting the arc, electric arc
The hot wafering broken material fusing in electric furnace is disturbed, in-furnace temperature is adjusted to suitable temperature, is stirred evenly using electric arc disturbance,
Broken material is set to be completely melt.
S3, cooling and shaping
After stopping heating, graphite crucible is taken out using crucible tongs, it is resistance to that the graphite crucible equipped with fusant is placed in drying
It is cooled down on firebrick, about melt surface blacks after ten minutes, at this point, being broken up graphite crucible using iron hammer, and destroys
The slag blanket of fusant outer layer is cleaned out, and obtains the finished product of metal pie, which is the hot pressing after homogenization of composition
Block fusant；
After the finished product of metal pie naturally cools to kermesinus, further cooling (water logging cooling) is put into water,
It can be obtained finished product after cooling.
Stop heating after, graphite crucible can be taken out immediately, can also keep the heating furnace constant temperature for a period of time after
Graphite crucible is taken out again.
The cooling of above-mentioned refractory brick and water logging cooling finished product drying after cooling twice will be passed through, use above-mentioned assay balance pair
Finished product after cooling, which weigh, obtains its quality m1, by the quality m of finished product1It is divided by with the quality m of sample, you can obtain hot pressing
The calculation formula of the water rate of block, water rate is：V=m1/ m,
Wherein, v is the water rate of hot wafering；
m1For final product quality after cooling；
M is the sample mass for hot melt.
Using hot melting process, heated after hot wafering is crushed, the floatings such as oxide insoluble in metal, and some are dissolved in gold
The element of category is then dissolved in molten metal, and ingredient can be obtained after the impurity such as the oxide insoluble in metal by, which eliminating, uniformly melts
The weight for melting finished product can be obtained the water rate index of hot wafering by finished product compared with the weight of hot wafering broken material, for refining
Steel iron and steel stock dispensing refers to.
S4, sampling analysis
The finished product is subjected to cutting sampling and obtains sample, and by after the sample sanding and polishing, utilizes spectrum analysis pair
The sample carries out composition detection.
It finished product after cooling will be heated is placed on anodontia cutting machine and clamp, be about cut at the one third of diameter
A certain size sample, and to samples weighing；The fritter sample is placed on belt sander after sanding and polishing and carries out spectrum
Analysis, can be obtained the content of the elements such as carbon in hot wafering, silicon, manganese, phosphorus, sulphur and trace element, completes the constituent analysis of hot wafering,
For steel-making dispensing reference.
It in the present embodiment, is polished using belt sander, has prevented the polishing of chemical mode, it will not be in sample
Chemical composition has an impact, meanwhile, it is environmentally safe using physics polishing, energy consumption is reduced, it is also non-hazardous to operating personnel.
In addition, other mechanical means also can be used in the present invention, including but not limited to imprint, polish rotation, by gravity or
The spontaneous smoothing of surface tension, keeps the sample surfaces smooth, it is ensured that the glossiness of product surface makes it have optical function
Containing identification information, facilitate spectrum analysis.
Spectrum analysis is carried out using spectroanalysis instrument after sample sanding and polishing, the analysis principle of spectroanalysis instrument is by light source
The ground state atom of element to be measured is absorbed in the steam that the characteristic spectrum of the element to be measured given off passes through sample, according to transmitting light
The degree being weakened is composed, it can be in the hope of the content of element to be measured in sample.
As shown in Fig. 2, the present invention also provides a kind of method for the water rate measuring steel hot wafering, specific steps include：
X1, molding steel hot wafering is broken into granularity as 20mm broken materials below using mechanical equipment, uses analysis
Balance is sampled and weighs to broken material, obtains the sample that quality is m；
X2, the sample that quality is m is put into crucible, and the crucible for being placed with the sample is put into heating furnace and is heated to
Sample is stated to be completely melt；
X3, after stopping heating, crucible is taken out using crucible tongs, and crucible is placed on refractory brick and is cooled down, by earthenware
Hot-melt object in crucible through be cooled and shaped take out and using iron hammer impact, clean out after melted after finished product, after melting
Finished product be placed in water and further cooled down；
X4, using above-mentioned assay balance its quality m is obtained to through the water logging finished product after cooling weigh1；
X5, according to water rate formula：Water rate v=m1/ m calculates the water rate for obtaining steel hot wafering.
Particularly, the present invention is suitable for the chemical examination technique for the steel hot wafering that converter steel scrap uses.
The present invention can obtain the uniform metal pie fusant of ingredient using the broken hot melting process of hot wafering, to heat
Molten metal pie fusant after cooling carries out cutting sampling and carries out spectrum analysis after sanding and polishing, can be compared with Accurate Determining
The content of each element in hot wafering, solves the problems, such as constituent content mensure in hot wafering.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of the claim
Subject to enclosing.
Claims (10)
1. a kind of method for detecting ingredient in steel hot wafering, which is characterized in that described for detecting ingredient in steel hot wafering
Method include：
S1, sample preparation crushing：It is 20mm broken materials below that steel hot wafering, which is broken into granularity, using mechanical equipment, uses analysis day
It puts down to be sampled the broken material and weigh and obtains sample；
S2, hot melt：Crucible equipped with the sample is put into heating furnace and is heated to the sample and is completely melt；
S3, cooling and shaping：After stopping heating, the crucible is taken out, and the crucible is placed on refractory brick and is cooled down, it will
Hot-melt object in the crucible through be cooled and shaped take out and strike, clean out after obtain finished product, and the finished product is placed in water
In further cool down；
S4, sampling analysis：The finished product is subjected to cutting sampling and obtains sample, and by after the sample sanding and polishing, utilizes light
Spectrum analysis carries out composition detection to the sample.
2. the method according to claim 1 for detecting ingredient in steel hot wafering, which is characterized in that in the step S1
Sample described in 2kg is accurately weighed using the assay balance.
3. the method according to claim 1 for detecting ingredient in steel hot wafering, which is characterized in that in the step S1
Further include being sieved to broken broken material.
4. the method according to claim 1 for detecting ingredient in steel hot wafering, which is characterized in that the step S3 packets
It includes：
S31, after stopping heating, the crucible taking-up equipped with fusant is placed on refractory brick using crucible tongs and is carried out for the first time
It is cooling；
S32, when the melt surface blacks, the crucible is broken up using iron hammer, and by the slag of the melt surface
Layer destroy cleared up after obtain finished product；
S33, when the finished product naturally cools to kermesinus, place it in water that carry out second cooling.
5. the method according to claim 1 for detecting ingredient in steel hot wafering, which is characterized in that the shape of the finished product
Shape is pie.
6. the method according to claim 1 for detecting ingredient in steel hot wafering, which is characterized in that the step S3 it
After further include drying the further finished product after cooling, and weighed to the finished product using the assay balance.
7. the method for ingredient in detection steel hot wafering according to claim 1, which is characterized in that the cutting sampling includes
The finished product is placed on anodontia cutting machine and is cut, and to the samples weighing after the cutting.
8. the method according to claim 1 for detecting ingredient in steel hot wafering, which is characterized in that the sanding and polishing
Include that the sample that will be obtained after cutting sampling is placed on belt sander progress sanding and polishing.
9. the method according to any one of claim 1 to 8 for detecting ingredient in steel hot wafering, which is characterized in that
Using Efco-Northrup furnace as the heating furnace.
10. a kind of water rate measurement method, the water rate for measuring steel hot wafering, which is characterized in that the water rate measures
Method includes：
X1, steel hot wafering is broken into granularity for 20mm broken materials below, using assay balance to described using mechanical equipment
Broken material is sampled and weighs, and obtains the sample that quality is m；
X2, the sample that the quality is m is put into crucible, and the crucible for being placed with the sample is put into heating furnace and is added
Heat to the sample is completely melt；
X3, after stopping heating, the crucible is taken out using crucible tongs, and the crucible is placed on refractory brick and is cooled down,
By the hot-melt object in the crucible through be cooled and shaped take out and using iron hammer impact, clean out after melted after finished product,
And the finished product is placed in water and is further cooled down；
X4, using the assay balance its quality m is obtained to through the water logging finished product after cooling weigh1；
X5, according to water rate formula：Water rate v=m1/ m calculates the water rate for obtaining the steel hot wafering.
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Cited By (7)
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|---|---|---|---|---|
| CN109946199A (en) * | 2019-03-18 | 2019-06-28 | 河钢股份有限公司承德分公司 | A kind of device and method detecting ferrous material water rate |
| CN111896417A (en) * | 2020-06-19 | 2020-11-06 | 马鞍山钢铁股份有限公司 | Method for detecting content of metallic iron in briquetting grain steel |
| CN112326494A (en) * | 2020-09-27 | 2021-02-05 | 唐山曹妃甸区通鑫再生资源回收利用有限公司 | Method for detecting water yield of steel hot-pressing block |
| CN112362524A (en) * | 2020-10-30 | 2021-02-12 | 山东莱钢永锋钢铁有限公司 | Method for testing water yield of granular steel sample |
| CN112378946A (en) * | 2020-09-29 | 2021-02-19 | 唐山曹妃甸区通鑫再生资源回收利用有限公司 | Efficient detection method for particle steel |
| CN113009102A (en) * | 2021-02-26 | 2021-06-22 | 柳州钢铁股份有限公司 | Method for determining composition of scrap and processing equipment for detecting composition sample of scrap |
| CN116087027A (en) * | 2023-04-10 | 2023-05-09 | 江苏沙钢集团有限公司 | Method for detecting molten steel yield of ball-milling particle steel hot-pressed block |
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| CN112378946A (en) * | 2020-09-29 | 2021-02-19 | 唐山曹妃甸区通鑫再生资源回收利用有限公司 | Efficient detection method for particle steel |
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| CN116087027A (en) * | 2023-04-10 | 2023-05-09 | 江苏沙钢集团有限公司 | Method for detecting molten steel yield of ball-milling particle steel hot-pressed block |
| CN116087027B (en) * | 2023-04-10 | 2023-06-13 | 江苏沙钢集团有限公司 | Method for detecting molten steel yield of ball-milling particle steel hot-pressed block |
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