CN107505155A - A kind of shifting storehouse sampling method of high carbon ferro-chrome - Google Patents
A kind of shifting storehouse sampling method of high carbon ferro-chrome Download PDFInfo
- Publication number
- CN107505155A CN107505155A CN201710678694.8A CN201710678694A CN107505155A CN 107505155 A CN107505155 A CN 107505155A CN 201710678694 A CN201710678694 A CN 201710678694A CN 107505155 A CN107505155 A CN 107505155A
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- China
- Prior art keywords
- high carbon
- chrome
- sampling
- carbon ferro
- spoon
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
Abstract
The invention discloses a kind of shifting storehouse sampling method of high carbon ferro-chrome, comprise the following steps：1), windrow is concentrated using steel grasping machine；2), storehouse sampling is moved using loading machine；3), sampling process；4), sample collects；High carbon ferro-chrome jumbo bag is focused on by stowed location A by steel pawl machine, greatly reduce the place usage amount of high carbon ferro-chrome, and preliminary mixing is carried out to high carbon ferro-chrome, then shifting storehouse is carried out to high carbon ferro-chrome using loading machine, high carbon ferro-chrome is moved to stowed location B, make the composition of all high carbon ferro-chromes of this batch become more uniform, while moving storehouse, the pth time high carbon ferro-chrome and P integral multiple time high carbon ferro-chrome loaded according to sampling frequency p to loading machine samples, so as to obtain the differential small each secondary sample of composition, and after mixing twice, even if to being doped in only a few high carbon ferro-chrome ton bag, also the sample of impurity is easily taken, so as to improve examination precision.
Description
Technical field
The present invention relates to a kind of sampling method, the shifting storehouse sampling method of particularly a kind of high carbon ferro-chrome.
Background technology
High carbon ferro-chrome is raw material indispensable in stainless steel production, therefore purchase volume is big, because high carbon ferro-chrome market is tight
, therefore the high carbon ferro-chrome once ordered can divide several batches here, and a couple of days may be all spaced between every batch, this just gives
Supplier adulterates soil, sand, scrap iron, the chance of low taste high carbon ferro-chrome into the high carbon ferro-chrome of different batches, due to passing
The sampling method of system is after grade high carbon ferro-chrome is all shown up, according to the total bag number of high carbon ferro-chrome, according to sampling standard, to randomly select
If dry bag number, then the high carbon ferro-chrome in the high carbon ferro-chrome jumbo bag of selection is sampled, finally sampling sample is collected, carried out
Examine, the above method has following drawback：1st, high carbon ferro-chrome jumbo bag occupied ground area is wide, time length, has a strong impact on that place makes
Use efficiency；2nd, hand over low due to choosing the ratio that is sampled of high carbon ferro-chrome jumbo bag, therefore supplier is toward adulterating very in a small number of jumbo bags
Difficulty is drawn into, and so as to leak through examination link, after high carbon ferro-chrome mixing, is dragged down the overall quality of high carbon ferro-chrome, is influenceed stainless
The quality of steel finished product.
The content of the invention
Technical problems to be solved first of the invention are：A kind of shifting storehouse sampling method of high carbon ferro-chrome is provided, can effectively be prevented
Only detection leakage phenomenon, improve and check and accept precision, and can effectively reduce the use range and usage time in place, improve place and use
Rate.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of shifting storehouse sampling method of high carbon ferro-chrome, comprises the following steps：
1), windrow is concentrated using steel grasping machine：After each batch high carbon ferro-chrome is shown up, using steel grasping machine by all high carbon ferro-chromes
Jumbo bag grabs stowed location A successively, then scratches jumbo bag, high carbon ferro-chrome is deposited in stowed location A, forms taper high-carbon
Ferrochrome heap；
2), storehouse sampling is moved using loading machine：Treat that all batch high carbon ferro-chromes are all shown up, and by steel grasping machine by high carbon chromium
After iron is transferred to stowed location A, according to high carbon ferro-chrome gross weight, sampling number standard and loading machine burden rating,
Sampling frequency p is calculated, stowed location A high carbon ferro-chrome is then transferred to stowed location B with loading machine, in transfer process,
According to sampling frequency p, the pth time high carbon ferro-chrome loaded to loading machine and P integral multiple time high carbon ferro-chrome enter operating personnel
Row sampling, unitary sampling amount are operated according to sampling amount standard；
3), sampling process：Sampling spoon is put in stowed location B by operating personnel, loading machine by mounted in high carbon ferro-chrome topple over
Above sampling spoon, after loading machine is left away, operating personnel extract sampling spoon out, and the high carbon ferro-chrome in sampling spoon is sample, is adopted
The sampling weight of sample spoon is equal with unitary sampling amount；
4), sample collects：By the sample collection sampled every time to together, being sent to control laboratory and test to sample test
Receive.
As a kind of preferable scheme, the sampling number standard in the step 2) is as follows：
Sampling amount standard in the step 2) is as follows：
As a kind of preferable scheme, step 2) the medium high carbon ferrochrome gross tonnage is in T, sampling number standard
Numeral is m (m chooses according to T value from sampling number standard) and loading machine burden rating t, calculates sampling frequency
Rate p, p=T/ (m*t).
Secondly technical problems to be solved are the present invention：A kind of sampling spoon simple in construction, easy to operation is provided.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of sampling spoon, including kettleholder, kettleholder
One end is connected with the first spoon body and the second spoon body, and the other end is connected with the 3rd spoon body and the 4th spoon body, first spoon body and
The bottom surfaces of two spoon bodies is relative and is bonded to each other, and the bottom surface of the 3rd spoon body and the 4th spoon body is relative and is bonded to each other, and described the
The sampling quantity of one spoon body is 0.5 kilogram of high carbon ferro-chrome, and the sampling quantity of second spoon body is 1 kilogram of high carbon ferro-chrome, the described 3rd
The sampling quantity of spoon body is 3 kilograms of high carbon ferro-chromes, and the sampling quantity of the 4th spoon body is 5 kilograms of high carbon ferro-chromes.
As a kind of preferable scheme, first spoon body and the second spoon body share one piece of bottom plate, the 3rd spoon body and
4th spoon body shares one piece of bottom plate, and the openend of the first spoon body and the second spoon body is opposite, the opening of the 3rd spoon body and the 4th spoon body
End is opposite.
The beneficial effects of the invention are as follows：High carbon ferro-chrome jumbo bag is focused on by stowed location A by steel pawl machine, can greatly be subtracted
The place usage amount of small high carbon ferro-chrome, and a preliminary mixing can be carried out to high carbon ferro-chrome, then utilize loading machine pair
High carbon ferro-chrome carries out shifting storehouse, the car car of high carbon ferro-chrome one is moved into stowed location B, in transfer process, equivalent to high carbon chromium
Iron has carried out mixing again, makes the composition of all high carbon ferro-chromes of this batch become more uniformly, while moving storehouse, according to
The pth time high carbon ferro-chrome and P integral multiple time high carbon ferro-chrome that sampling frequency p loads to loading machine sample, so as to obtain
The differential small each secondary sample of composition is obtained, and after mixing twice, even if in only a few high carbon ferro-chrome ton bag
It is doped, also easily takes the sample of impurity, so as to improves examination precision.
In addition, above-mentioned sampling scoop can gather a variety of sampling quantities, sampling operation is enormously simplify, and it is simple in construction,
Operating personnel only need to select spoon body according to sampling quantity, it becomes possible to complete sampling.
Brief description of the drawings
Fig. 1 is the structural representation of sampling spoon.
In Fig. 1：1st, kettleholder, the 2, first spoon body, the 3, second spoon body, the 4, the 3rd spoon body, the 5, the 4th spoon body.
Embodiment
Specific embodiments of the present invention are further described below by way of embodiment.
A kind of shifting storehouse sampling method of high carbon ferro-chrome, comprises the following steps：
1), windrow is concentrated using steel grasping machine：After each batch high carbon ferro-chrome is shown up, using steel grasping machine by all high carbon ferro-chromes
Jumbo bag grabs stowed location A successively, then scratches jumbo bag, high carbon ferro-chrome is deposited in stowed location A, forms taper high-carbon
Ferrochrome heap.
2), storehouse sampling is moved using loading machine：Treat that all batch high carbon ferro-chromes are all shown up, and by steel grasping machine by high carbon chromium
After iron is transferred to stowed location A, according to high carbon ferro-chrome gross weight, sampling number standard and loading machine burden rating,
Sampling frequency p is calculated, stowed location A high carbon ferro-chrome is then transferred to stowed location B with loading machine, in transfer process,
According to sampling frequency p, the pth time high carbon ferro-chrome loaded to loading machine and P integral multiple time high carbon ferro-chrome enter operating personnel
Row sampling, unitary sampling amount are operated according to sampling amount standard.
Assuming that high carbon ferro-chrome gross weight is 800 tons, the divided by maximum granularity of high carbon ferro-chrome is 60mm, then according to sampling part
It is 25 parts that number standard, which chooses minimum sampling number, and it is 3 kilograms to choose the minimum amount of taking according to sampling amount standard, wherein taking
Number is bigger, the amount of taking is more, then final check and acceptance result is more accurate.
3), sampling process：Sampling spoon is put in stowed location B by operating personnel, loading machine by mounted in high carbon ferro-chrome topple over
Above sampling spoon, after loading machine is left away, operating personnel extract sampling spoon out, and the high carbon ferro-chrome in sampling spoon is sample, is adopted
The sampling weight of sample spoon is equal with unitary sampling amount.
4), sample collects：By the sample collection sampled every time to together, being sent to control laboratory and test to sample test
Receive.
High carbon ferro-chrome jumbo bag is focused on by stowed location A by steel pawl machine, can greatly reduce the place of high carbon ferro-chrome makes
Dosage, and a preliminary mixing can be carried out to high carbon ferro-chrome, shifting storehouse then is carried out to high carbon ferro-chrome using loading machine, will
The car car of high carbon ferro-chrome one is moved to stowed location B, in transfer process, equivalent to having carried out again mixed to high carbon ferro-chrome
Close, make the composition of all high carbon ferro-chromes of this batch become more uniformly, while moving storehouse, according to sampling frequency p to loading machine
The pth of loading time high carbon ferro-chrome and P integral multiple time high carbon ferro-chrome is sampled, differential small each so as to obtain composition
Secondary sample, and after mixing twice, even if to being doped in only a few high carbon ferro-chrome ton bag, also easily take
To the sample of impurity, so as to improve examination precision.
Above-mentioned steps 2) in sampling number standard it is as follows：
Above-mentioned steps 2) in sampling amount standard it is as follows：
Above-mentioned steps 2) medium high carbon ferrochrome gross tonnage is T, the numeral in sampling number standard is that (m is according to T's by m
Value, chooses from sampling number standard) and loading machine burden rating t, calculate sampling frequency p, p=T/ (m*t).
It is a kind of sampling spoon as shown in Figure 1, including kettleholder 1, one end of kettleholder 1 are connected with the first spoon body 2 and the second spoon body
3, the other end is connected with the 3rd spoon body 4 and the 4th spoon body 5, and the bottom surface of the spoon body 3 of the first spoon body 2 and second is relative and mutually pastes
Close, the bottom surface of the 3rd spoon body 4 and the 4th spoon body 5 is relative and is bonded to each other, and the sampling quantity of first spoon body 2 is 0.5 thousand
Gram high carbon ferro-chrome, the sampling quantity of second spoon body 3 is 1 kilogram of high carbon ferro-chrome, and the sampling quantity of the 3rd spoon body 4 is 3 kilograms
High carbon ferro-chrome, the sampling quantity of the 4th spoon body 5 is 5 kilograms of high carbon ferro-chromes.
Above-mentioned sampling scoop can gather a variety of sampling quantities, enormously simplify sampling operation, and simple in construction, operator
Member only needs to select spoon body according to sampling quantity, it becomes possible to completes sampling.
The spoon body 3 of first spoon body 2 and second shares one piece of bottom plate, and the 3rd spoon body 4 and the 4th spoon body 5 share one
The openend of block bottom plate, the first spoon body 2 and the second spoon body 3 is opposite, and the openend of the 3rd spoon body 4 and the 4th spoon body 5 is opposite, with letter
Change structure, reduce sampling spoon weight, reduce labor intensity, the openend mutually deviated from, downward openend can be buckled in high carbon chromium
On iron, support force and lateral resistance are formed, the stability of sampling spoon is improved, prevents sampling spoon to be dumped in sampling process
High carbon ferro-chrome wash from, lead to not collect enough samples.
The present invention operation principle be：High carbon ferro-chrome jumbo bag is focused on by stowed location A by steel pawl machine, can greatly be subtracted
The place usage amount of small high carbon ferro-chrome, and a preliminary mixing can be carried out to high carbon ferro-chrome, then utilize loading machine pair
High carbon ferro-chrome carries out shifting storehouse, the car car of high carbon ferro-chrome one is moved into stowed location B, in transfer process, equivalent to high carbon chromium
Iron has carried out mixing again, makes the composition of all high carbon ferro-chromes of this batch become more uniformly, while moving storehouse, according to
The pth time high carbon ferro-chrome and P integral multiple time high carbon ferro-chrome that sampling frequency p loads to loading machine sample, so as to obtain
The differential small each secondary sample of composition is obtained, and after mixing twice, even if in only a few high carbon ferro-chrome ton bag
It is doped, also easily takes the sample of impurity, so as to improves examination precision.
The principle and its effect of above-described embodiment only illustrative the invention, and the embodiment that part uses,
Not for the limitation present invention；It should be pointed out that for the person of ordinary skill of the art, the invention structure is not being departed from
On the premise of think of, various modifications and improvements can be made, these belong to protection scope of the present invention.
Claims (5)
1. the shifting storehouse sampling method of a kind of high carbon ferro-chrome, it is characterised in that comprise the following steps：
1), windrow is concentrated using steel grasping machine：After each batch high carbon ferro-chrome is shown up, using steel grasping machine by all high carbon ferro-chrome jumbo bags
Stowed location A is grabbed successively, then scratches jumbo bag, high carbon ferro-chrome is deposited in stowed location A, forms taper high carbon ferro-chrome
Heap；
2), storehouse sampling is moved using loading machine：Treat that all batch high carbon ferro-chromes are all shown up, and turn high carbon ferro-chrome by steel grasping machine
After moving on to stowed location A, according to high carbon ferro-chrome gross weight, sampling number standard and loading machine burden rating, calculate
Sampling frequency p, stowed location A high carbon ferro-chrome is then transferred to stowed location B with loading machine, in transfer process, operation
Personnel according to sampling frequency p, adopt by the pth time high carbon ferro-chrome loaded to loading machine and P integral multiple time high carbon ferro-chrome
Sample, unitary sampling amount are operated according to sampling amount standard；
3), sampling process：Sampling spoon is put in stowed location B by operating personnel, loading machine by mounted in high carbon ferro-chrome be poured over and adopt
Above sample spoon, after loading machine is left away, operating personnel extract sampling spoon out, and the high carbon ferro-chrome in sampling spoon is sample, sampling spoon
Sampling weight it is equal with unitary sampling amount；
4), sample collects：The sample collection sampled every time is tested examination to sample to together, being sent to control laboratory.
2. the shifting storehouse sampling method of a kind of high carbon ferro-chrome according to claim 1, it is characterised in that in the step 2)
Sampling number standard is as follows：
Sampling amount standard in the step 2) is as follows：
。
3. the shifting storehouse sampling method of a kind of high carbon ferro-chrome according to claim 2, it is characterised in that high in the step 2)
Carbon ferrochrome gross tonnage is T, the numeral in sampling number standard is that (m is selected m according to T value from sampling number standard
Take) and loading machine burden rating t, calculate sampling frequency p, p=T/ (m*t).
4. a kind of sampling spoon, it is characterised in that including kettleholder, one end of kettleholder is connected with the first spoon body and the second spoon body, another
End is connected with the 3rd spoon body and the 4th spoon body, and the bottom surface of first spoon body and the second spoon body is relative and is bonded to each other, and described the
The bottom surface of three spoon bodies and the 4th spoon body is relative and is bonded to each other, and the sampling quantity of first spoon body is 0.5 kilogram of high carbon ferro-chrome, institute
The sampling quantity for stating the second spoon body is 1 kilogram of high carbon ferro-chrome, and the sampling quantity of the 3rd spoon body is 3 kilograms of high carbon ferro-chromes, described
The sampling quantity of four spoon bodies is 5 kilograms of high carbon ferro-chromes.
5. a kind of sampling spoon according to claim 4, it is characterised in that first spoon body and the second spoon body share one piece
Bottom plate, the 3rd spoon body and the 4th spoon body share one piece of bottom plate, and the openend of the first spoon body and the second spoon body is opposite, the 3rd spoonful
The openend of body and the 4th spoon body is opposite.
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| CN201710678694.8A CN107505155A (en) | 2017-08-10 | 2017-08-10 | A kind of shifting storehouse sampling method of high carbon ferro-chrome |
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| CN201710678694.8A CN107505155A (en) | 2017-08-10 | 2017-08-10 | A kind of shifting storehouse sampling method of high carbon ferro-chrome |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111562133A (en) * | 2019-03-08 | 2020-08-21 | 浦项(张家港)不锈钢股份有限公司 | Raw material acceptance sampling method |
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Address after: 215625 Puxiang (Zhangjiagang) Stainless Steel Co., Ltd. on the north side of the Yangtze River Highway, Jinfeng Town, Zhangjiagang City, Suzhou City, Jiangsu Province Applicant after: Puxiang (Zhangjiagang) Stainless Steel Co., Ltd. Address before: 215625 Zhangjiagang Puxiang Stainless Steel Co., Ltd., Jinfeng Town, Zhangjiagang City, Suzhou City, Jiangsu Province Applicant before: Puxiang Stainless Steel Co Ltd, Shangjiagang |
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Application publication date: 20171222 |