CN109030152A - A kind of multifunctional multistage crushing division combined sample making machine group and its process - Google Patents
A kind of multifunctional multistage crushing division combined sample making machine group and its process Download PDFInfo
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- CN109030152A CN109030152A CN201810954127.5A CN201810954127A CN109030152A CN 109030152 A CN109030152 A CN 109030152A CN 201810954127 A CN201810954127 A CN 201810954127A CN 109030152 A CN109030152 A CN 109030152A
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- 239000003245 coal Substances 0.000 claims description 192
- 239000002245 particle Substances 0.000 claims description 56
- 238000007599 discharging Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 7
- 238000005070 sampling Methods 0.000 claims description 6
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- 239000000523 sample Substances 0.000 description 269
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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
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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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
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
Abstract
A kind of multifunctional multistage crushing division combined sample making machine group and its process disclosed by the invention, sample preparation unit includes machine unit support, machine unit support is equipped with level-one crusher, secondary breaker, level-one material channel and second level material channel, multistage reduction device is then arranged in level-one material channel and second level material channel, reduction device carries out division by interior rotation partition, interior rotation partition then passes through division cylinder, outside lever, transmission campaign between shaft, precise control, precision is high, operation is smooth, simultaneously, optimize sample preparation technique, it is integrated to fixed in sample preparation technique than division and quantitative division, realize that Multifunctional height is integrated, Alternative is highly integrated, equipment is saved, the turnover of sample preparation link is reduced again, reduce manpower demand, the fixed ratio of PLC control, quantitative division, it is easy to operate efficient, compare present equipment, machine The adjustment of tool formula, division ratio are adjusted simply, and range adjustment is big, can be inputted according to customer demand, greatly improve sample preparation accuracy.
Description
Technical field
The present invention relates to sample preparation unit field, especially a kind of multifunctional multistage crushing division combined sample making machine group and its work
Process.
Background technique
China is maximum coal production state and using state in the world, the sound development of coal international trade and domestic trade
It is unable to do without inspection of the just third party to coal quality.Coal is non-uniform material, has quality and particle non-uniform
Characteristic.Therefore, accurately to gather and process representative sample particularly significant in coal inspection.
Practice have shown that account for coal quality inspection overall error by sampling generated error 85% or so, and coal sample preparation
For unit as important coal sample preparation sampling equipment, the effect in coal quality inspection is obvious.To coal product
During quality inspection is tested, sample preparation unit can sample coal, sample preparation, and the coal sample that sample preparation obtains can be by inspection, chemical examination.It is making
The process of the sampling of model machine group, sample preparation, often there is error largely in chance.
The sample preparation unit now used, mostly combined sample making machine group can produce the coal sample of multiple specifications simultaneously, but also therefore
There are many defects, first, due to the difference of sampling ratio, wasting situation in the sample making course for carrying out single specification coal sample
Seriously, extra coal sample, cannot exclude, and can only enter junior's crusher, is broken；Second, the reduction device built in sample preparation unit
Mostly old-fashioned structure is mostly to be controlled the size of discharge port using mechanical push plate, and then adjust discharging cross-sectional sizes, reaches division
Purpose, not only division precision is poor, and easily infiltrates into coal sample material at mechanical push plate, causes mechanical push plate Caton；Third, sample preparation
The division control of unit is designed based on old-fashioned reduction device, and precision is low, and it is poor to control, and can seriously affect the levels of precision of sample preparation sampling.
Summary of the invention
The present invention is in view of the above-mentioned problems, disclose a kind of multifunctional multistage crushing division combined sample making machine group and its technique side
Method.
Specific technical solution is as follows:
A kind of multifunctional multistage crushing division combined sample making machine group and its process, a kind of multifunctional multistage are broken
Broken division combined sample making machine group includes machine unit support, and the machine unit support is equipped with level-one crusher, secondary breaker, level-one object
Expect channel and second level material channel, which is characterized in that the level-one material channel includes level-one feed pipe, the first discharge pipe
With the second discharge pipe, the second level material channel includes secondary feed tube road, third discharge pipe and the 4th discharge pipe, institute
It states and is equipped with reduction device on level-one feed pipe, the first discharge pipe and secondary feed tube road, the quantity of reduction device is multiple groups, by
Division cylinder, outside lever, shaft and interior rotation partition, the interior rotation partition on multiple groups reduction device are located at level-one feed pipe
In road, the first discharge pipe and secondary feed tube road, one end of interior rotation partition is welded and fixed with shaft, and the both ends of shaft are run through
Level-one feed pipe, the first discharge pipe and secondary feed tube road, and pass through bearing and level-one feed pipe, the first discharge pipe
With secondary feed tube road be rotatablely connected, the division cylinder by bracket and machine unit support it is hinged, one end of the outside lever and
Shaft welding or riveting are fixed, and the output end of the other end and division cylinder is hinged and connected；
The upper end of the level-one crusher is equipped with level-one feed inlet, and lower end is equipped with level-one discharge port, the secondary breaker
Upper end be equipped with second level feed inlet, lower end be equipped with secondary discharge port, the level-one discharge port is connected to level-one feed pipe, described
Second level feed inlet is connected to the second discharge pipe, and the secondary discharge port is connected to secondary feed tube road；
The lower section of first discharge pipe is equipped with the first collecting box and the second collecting box, and second collecting box is located at the
Between one collecting box and the first discharge pipe, the lower section of the third discharge pipe is equipped with third collecting box, the 4th discharging
The lower section of pipeline is equipped with the 4th collecting box；
Division cylinder driving outside lever movement, and then drive shaft rotation, thus drive be located at level-one feed pipe,
Interior rotation partition in first discharge pipe and secondary feed tube road is swung, adjustment coal sample discharging guiding；
Reduction device is divided into the first-order reduction unit on level-one feed pipe by installation site, is located on the first discharge pipe
Second level reduction device and secondary feed tube road on three-level reduction device；
The division cylinder is controlled by PLC controller, and then controls reduction device operation, operating status that there are three types of reduction devices,
Respectively normally opened, normally closed and circulating open close；
When first-order reduction unit is normally opened, level-one feed pipe is connected to the first discharge pipe, is not connected to the second discharge pipe,
When first-order reduction unit is normally closed, level-one feed pipe is connected to the second discharge pipe, is not connected to the first discharge pipe；When second level contracts
Point device is normally opened, and the first discharge pipe is connected to the first collecting box, is not connected to the second collecting box, when second level reduction device is normally closed, the
One discharge pipe is connected to the second collecting box, is not connected to the first collecting box；When three-level reduction device is normally opened, second level discharge pipe with
The connection of third discharge pipe, and then is connected to third collecting box, is not connected to the 4th discharge pipe, when second level reduction device is normally closed,
Second level discharge pipe is connected to the 4th discharge pipe, and then is connected to the 4th collecting box, is not connected to third discharge pipe；
Determine than sample preparation circulating open close: in the unit circle time, the opening and closing of reduction device interval；Assuming that the unit circle time is t, contracting
Divide the device opening time for t1, shut-in time t2, then t=t1+t2, and the ratio of t1 and t2 can be adjusted by PLC controller；
Quantitative sample preparation circulating open close: taking the coal sample of certain mass, collected after being crushed the big granularity of certain mass coal sample and
The small grain size coal sample of certain mass.Then calculation formula are as follows: assuming that coal sample quality is M, it is known that the coal sample quality that need to be collected is M1, then
Abandon the quality of coal sample are as follows: M-M1；Then reduction device circulation time: t1:t2=M1:(M-M1), t1+t2=t.
When carrying out raw coal sample sample preparation crushing, sample requirement and standard are gone out according to coal sample, the coal sample particle size produced exists
The little particle coal sample that two kinds of situations, respectively partial size are 6mm or the bulky grain coal sample and partial size of 13mm are 3mm；And in sample preparation
During, 6mm or 13mm and 3mm have certain quality requirement；A kind of multifunctional multistage crushing division connection
Close the process of sample preparation unit, including a variety of sample preparation techniques, single sample preparation crushing technique, only including only producing bulky grain coal sample
It produces double sample preparation crushing techniques of little particle coal sample, broken according to the fixed joint for producing bulky grain coal sample and little particle coal sample than division
Broken sample preparation technique and the joint sample preparation crushing technique that bulky grain coal sample and little particle coal sample are produced according to quantitative division；
Single sample preparation crushing technique, the specific method is as follows:
Level-one crusher is normally opened, and first-order reduction unit is normally opened；At this point, raw coal sample enters level-one crusher from level-one feed inlet,
Level-one sample preparation crushing is to get bulky grain coal sample, at this point, bulky grain coal sample obtained is under the action of first-order reduction unit, into
One discharge pipe；If second level reduction device is normally opened, then bulky grain coal sample fully enters the first collecting box；If second level reduction device is normally closed,
Then bulky grain coal sample fully enters the second collecting box；Such as second level reduction device circulating open close, then bulky grain coal sample is in the first collecting box
And second pro rate between collecting box；
Double sample preparation crushing techniques, the specific method is as follows:
Level-one crusher is normally opened, and secondary breaker is normally opened, and first-order reduction unit is normally closed；At this point, raw coal sample is from level-one feed inlet
Into level-one crusher, level-one sample preparation crushing obtains bulky grain coal sample, effect of the bulky grain coal sample obtained in first-order reduction unit
Under, two-stage crushing is carried out into secondary breaker to get little particle coal sample, small-particle coal obtained by the second discharge pipe
Sample enters secondary feed tube road；If three-level reduction device is normally opened, then little particle coal sample fully enters third collecting box；Such as three-level division
Device is normally closed, then little particle coal sample fully enters the 4th collecting box；Such as three-level reduction device circulating open close, then little particle coal sample is in third
Pro rate between collecting box and the 4th collecting box；
It is described according to the fixed joint sample preparation crushing technique for producing bulky grain coal sample and little particle coal sample than division, it is specific
Method is as follows:
Level-one crusher is normally opened, and secondary breaker is normally opened, first-order reduction unit circulating open close according to a certain percentage；At this point, former
Coal sample enters level-one crusher from level-one feed inlet, and level-one sample preparation crushing obtains bulky grain coal sample, and subsequent first-order reduction unit is according to one
Certainty ratio circulating open close, will be in bulky grain coal sample pro rate to the first discharge pipe and secondary breaker obtained；Into
Bulky grain coal sample in one discharge pipe is collected in the case where second level reduction device acts on according to a certain percentage in the first collecting box and second
It is allocated between case, into the bulky grain coal sample in secondary breaker, carries out two-stage crushing, little particle coal sample is made, then
According to a certain percentage by three-level reduction device, it is allocated between third collecting box and the 4th collecting box.
The joint sample preparation crushing technique that bulky grain coal sample and little particle coal sample are produced according to quantitative division is specific
Method is as follows:
Level-one crusher is normally opened, and secondary breaker is normally opened, first-order reduction unit circulating open close, second level reduction device circulating open close,
Three-level reduction device circulating open close；At this point, the raw coal sample of certain mass is taken to enter level-one crusher from level-one feed inlet, level-one is broken
Sample preparation, obtains bulky grain coal sample, and subsequent first-order reduction unit circulating open close is rationed to the first discharging by bulky grain coal sample obtained
In pipeline and secondary breaker；Into the bulky grain coal sample in the first discharge pipe under the effect of second level reduction device, received first
It is quantitatively allocated between header and the second collecting box, into the bulky grain coal sample in secondary breaker, carries out two-stage crushing, system
Little particle coal sample is obtained to carry out between third collecting box and the 4th collecting box rationed then by three-level reduction device.
A kind of above-mentioned multifunctional multistage crushing division combined sample making machine group and its process, wherein the level-one is broken
Broken machine is crushed motor driven by level-one.
A kind of above-mentioned multifunctional multistage crushing division combined sample making machine group and its process, wherein the second level is broken
Broken machine is double-roll crusher.
A kind of above-mentioned multifunctional multistage crushing division combined sample making machine group and its process, wherein the second level is broken
Broken machine passes through two-stage crushing motor driven.
The invention has the benefit that
A kind of multifunctional multistage crushing division combined sample making machine group and its process disclosed by the invention, sample preparation unit packet
Including machine unit support, machine unit support is equipped with level-one crusher, secondary breaker, level-one material channel and second level material channel, and one
Multistage reduction device is then arranged in grade material channel and second level material channel, and reduction device carries out division, interior rotation by interior rotation partition
Partition then passes through division cylinder, outside lever, the transmission campaign between shaft, and precise control, precision is high, operation is smooth, together
When, optimize sample preparation technique, is integrated to single sample preparation crushing technique, double sample preparation crushing techniques and joint than division and quantitative division for fixed
In sample preparation crushing technique, realize that Multifunctional height is integrated, Alternative is highly integrated, that is, has saved equipment, and reduce sample preparation link
Turnover, reduce manpower demand.The fixed ratio of PLC control, quantitative division is easy to operate efficient, compares present equipment, mechanically
Adjustment, division ratio are adjusted simply, and range adjustment is big, can be inputted according to customer demand, greatly improve sample preparation accuracy.
Detailed description of the invention
Fig. 1 is perspective view of the present invention.
Fig. 2 is side view of the present invention.
Fig. 3 is level-one material channel perspective view.
Fig. 4 is level-one material channel side view.
Fig. 5 is second level material channel side view.
Fig. 6 is the longitudinal section of Fig. 5.
Specific embodiment
Clear to be more clear technical solution of the present invention, the present invention is described further with reference to the accompanying drawing,
The technical characteristic of any pair of technical solution of the present invention carries out the scheme that equivalencing is obtained with conventional reasoning and each falls within guarantor of the present invention
Protect range.
Embodiment one
As shown in the figure a kind of multifunctional multistage crushing division combined sample making machine group and its process, described one kind are more
Function multiple stage crushing division combined sample making machine group includes machine unit support 1, and the machine unit support 1 is equipped with level-one crusher 2, second level
Crusher 3, level-one material channel 4 and second level material channel 5, which is characterized in that the level-one material channel 4 is fed including level-one
Pipeline 41, the first discharge pipe 42 and the second discharge pipe 43, the second level material channel 5 include secondary feed tube road 51, the
Three discharge pipes 52 and the 4th discharge pipe 53, the level-one feed pipe 41, the first discharge pipe 42 and secondary feed tube road
Be equipped with reduction device 6 on 51, the quantity of reduction device 6 is multiple groups, by division cylinder 61, outside lever 62, shaft 63 and interior rotation every
Plate 64, it is grading that the interior rotation partition 64 on multiple groups reduction device 6 is located at level-one feed pipe 41, the first discharge pipe 42 and two
In pipe material 51, one end of interior rotation partition 64 is welded and fixed with shaft 63, the both ends of shaft 63 run through level-one feed pipe 41,
First discharge pipe 42 and secondary feed tube road 51, and pass through bearing and level-one feed pipe 41, the first discharge pipe 42 and two
Grade feed pipe 51 is rotatablely connected, and the division cylinder 61 is hinged by bracket and machine unit support 1, one end of the outside lever 62
It welds or rivets with shaft 63 and fix, the output end of the other end and division cylinder 61 is hinged and connected；
The upper end of the level-one crusher 2 is equipped with level-one feed inlet 21, and lower end is equipped with level-one discharge port 22, and the second level is broken
The upper end of broken machine 3 is equipped with second level feed inlet 31, and lower end is equipped with secondary discharge port 32, the level-one discharge port 22 and level-one feed pipe
Road 41 is connected to, and the second level feed inlet 31 is connected to the second discharge pipe 43, the secondary discharge port 32 and secondary feed tube road
51 connections；
The lower section of first discharge pipe 42 is equipped with the first collecting box 71 and the second collecting box 72, second collecting box
72 between the first collecting box 71 and the first discharge pipe 42, and the lower section of the third discharge pipe 52 is equipped with third collecting box
73, the lower section of the 4th discharge pipe 53 is equipped with the 4th collecting box 74；
The driving of division cylinder 61 outside lever 62 moves, and then shaft 63 is driven to rotate, to drive grading positioned at one
Interior rotation partition 64 in pipe material 41, the first discharge pipe 42 and secondary feed tube road 51 is swung, adjustment coal sample discharging guiding；
A kind of above-mentioned multifunctional multistage crushing division combined sample making machine group and its process, wherein the level-one is broken
Broken machine 2 is crushed motor 23 by level-one and drives.
A kind of above-mentioned multifunctional multistage crushing division combined sample making machine group and its process, wherein the second level is broken
Broken machine 3 is double-roll crusher.
A kind of above-mentioned multifunctional multistage crushing division combined sample making machine group and its process, wherein the second level is broken
Broken machine 3 is driven by two-stage crushing motor 33.
Existing reduction device is mostly to control the size of discharge port using mechanical push plate, and then adjust out when carrying out division
Expect cross-sectional sizes, reach division purpose, not only division precision is poor, and easily infiltrates into coal sample material at mechanical push plate, causes machine
Tool push plate Caton, the sample preparation unit in the present embodiment, be to have selected with the main distinction of existing sample preparation unit be different from it is existing
Structured reduction device, by division cylinder drive outside lever 6 move, and then drive shaft rotation, thus drive in rotation every
Plate is swung, to carry out division, interior rotation partition operation is smooth, is not easy Caton, and division precision is high.
Embodiment two
Reduction device is divided into the first-order reduction unit on level-one feed pipe by installation site, is located on the first discharge pipe
Second level reduction device and secondary feed tube road on three-level reduction device；
The division cylinder is controlled by PLC controller, and then controls reduction device operation, operating status that there are three types of reduction devices,
Respectively normally opened, normally closed and circulating open close；
When first-order reduction unit is normally opened, level-one feed pipe is connected to the first discharge pipe, is not connected to the second discharge pipe,
When first-order reduction unit is normally closed, level-one feed pipe is connected to the second discharge pipe, is not connected to the first discharge pipe；When second level contracts
Point device is normally opened, and the first discharge pipe is connected to the first collecting box, is not connected to the second collecting box, when second level reduction device is normally closed, the
One discharge pipe is connected to the second collecting box, is not connected to the first collecting box；When three-level reduction device is normally opened, second level discharge pipe with
The connection of third discharge pipe, and then is connected to third collecting box, is not connected to the 4th discharge pipe, when second level reduction device is normally closed,
Second level discharge pipe is connected to the 4th discharge pipe, and then is connected to the 4th collecting box, is not connected to third discharge pipe；
Determine than sample preparation circulating open close: in the unit circle time, the opening and closing of reduction device interval；Assuming that the unit circle time is t, contracting
Divide the device opening time for t1, shut-in time t2, then t=t1+t2, and the ratio of t1 and t2 can be adjusted by PLC controller；
Quantitative sample preparation circulating open close: taking the coal sample of certain mass, collected after being crushed the big granularity of certain mass coal sample and
The small grain size coal sample of certain mass.Then calculation formula are as follows: assuming that coal sample quality is M, it is known that the coal sample quality that need to be collected is M1, then
Abandon the quality of coal sample are as follows: M-M1；Then reduction device circulation time: t1:t2=M1:(M-M1), t1+t2=t.
When carrying out raw coal sample sample preparation crushing, sample requirement and standard are gone out according to coal sample, the coal sample particle size produced exists
The little particle coal sample that two kinds of situations, respectively partial size are 6mm or the bulky grain coal sample and partial size of 13mm are 3mm；And in sample preparation
During, 6mm or 13mm and 3mm have certain quality requirement；A kind of multifunctional multistage crushing division connection
Close the process of sample preparation unit, including a variety of sample preparation techniques, single sample preparation crushing technique, only including only producing bulky grain coal sample
It produces double sample preparation crushing techniques of little particle coal sample, broken according to the fixed joint for producing bulky grain coal sample and little particle coal sample than division
Broken sample preparation technique and the joint sample preparation crushing technique that bulky grain coal sample and little particle coal sample are produced according to quantitative division；
Single sample preparation crushing technique, the specific method is as follows:
Level-one crusher is normally opened, and first-order reduction unit is normally opened；At this point, raw coal sample enters level-one crusher from level-one feed inlet,
Level-one sample preparation crushing is to get bulky grain coal sample, at this point, bulky grain coal sample obtained is under the action of first-order reduction unit, into
One discharge pipe；If second level reduction device is normally opened, then bulky grain coal sample fully enters the first collecting box；If second level reduction device is normally closed,
Then bulky grain coal sample fully enters the second collecting box；Such as second level reduction device circulating open close, then bulky grain coal sample is in the first collecting box
And second pro rate between collecting box；
Double sample preparation crushing techniques, the specific method is as follows:
Level-one crusher is normally opened, and secondary breaker is normally opened, and first-order reduction unit is normally closed；At this point, raw coal sample is from level-one feed inlet
Into level-one crusher, level-one sample preparation crushing obtains bulky grain coal sample, effect of the bulky grain coal sample obtained in first-order reduction unit
Under, two-stage crushing is carried out into secondary breaker to get little particle coal sample, small-particle coal obtained by the second discharge pipe
Sample enters secondary feed tube road；If three-level reduction device is normally opened, then little particle coal sample fully enters third collecting box；Such as three-level division
Device is normally closed, then little particle coal sample fully enters the 4th collecting box；Such as three-level reduction device circulating open close, then little particle coal sample is in third
Pro rate between collecting box and the 4th collecting box；
It is described according to the fixed joint sample preparation crushing technique for producing bulky grain coal sample and little particle coal sample than division, it is specific
Method is as follows:
Level-one crusher is normally opened, and secondary breaker is normally opened, first-order reduction unit circulating open close according to a certain percentage；At this point, former
Coal sample enters level-one crusher from level-one feed inlet, and level-one sample preparation crushing obtains bulky grain coal sample, and subsequent first-order reduction unit is according to one
Certainty ratio circulating open close, will be in bulky grain coal sample pro rate to the first discharge pipe and secondary breaker obtained；Into
Bulky grain coal sample in one discharge pipe is collected in the case where second level reduction device acts on according to a certain percentage in the first collecting box and second
It is allocated between case, into the bulky grain coal sample in secondary breaker, carries out two-stage crushing, little particle coal sample is made, then
According to a certain percentage by three-level reduction device, it is allocated between third collecting box and the 4th collecting box.
The joint sample preparation crushing technique that bulky grain coal sample and little particle coal sample are produced according to quantitative division is specific
Method is as follows:
Level-one crusher is normally opened, and secondary breaker is normally opened, first-order reduction unit circulating open close, second level reduction device circulating open close,
Three-level reduction device circulating open close；At this point, the raw coal sample of certain mass is taken to enter level-one crusher from level-one feed inlet, level-one is broken
Sample preparation, obtains bulky grain coal sample, and subsequent first-order reduction unit circulating open close is rationed to the first discharging by bulky grain coal sample obtained
In pipeline and secondary breaker；Into the bulky grain coal sample in the first discharge pipe under the effect of second level reduction device, received first
It is quantitatively allocated between header and the second collecting box, into the bulky grain coal sample in secondary breaker, carries out two-stage crushing, system
Little particle coal sample is obtained to carry out between third collecting box and the 4th collecting box rationed then by three-level reduction device.
Embodiment three
The present embodiment combines practical sample preparation requirement, and the process in embodiment two is described in detail；
Wherein, according to sample preparation individual calling (full water sample abandons sample, file for reference sample and sample for future reference), the first collecting box, second are received
Header, third collecting box and the 4th collecting box carry out title again, respectively are full water sample collecting box, abandon sample collecting box, deposit
Look into sample collecting box and sample collecting box for future reference；
Technique (1): the raw coal sample of 100% volume prepares the bulky grain coal sample (full water sample) of 30% volume；
Single sample preparation crushing technique is selected, it, need to be into addition to level-one crusher is normally opened, first-order reduction unit is normally opened when carrying out sample preparation
Row is fixed to be arranged than division, sets the operating status of second level reduction device as circulating open close, and set the reduction device unit circle time as t
For 2s~5s, at this point, the proportionate relationship of opening time t1 and shut-in time t2 are as follows: t1:t2=30%:(100-30) %, wait contract
Divide and completes, 30% bulky grain coal sample (full water sample), into full water sample collecting box, the bulky grain coal sample of residue (100-30) %
(abandoning sample), into abandoning sample collecting box；
Technique (2): the raw coal sample of 100% volume prepares the little particle coal sample (sample of filing for reference) of 30% volume and 70% body
Long-pending little particle coal sample (sample for future reference)；
Double sample preparation crushing techniques are selected, when carrying out sample preparation, except level-one crusher is normally opened, secondary breaker is normally opened, level-one contracting
Divide device normally closed outer, need to be determined to be arranged than division, set the operating status of three-level reduction device as circulating open close, and set reduction device
The unit circle time is that t is 2s~5s, at this point, the proportionate relationship of opening time t1 and shut-in time t2 are as follows: t1:t2=30%:
70%, it is completed to division, 30% little particle coal sample (sample of filing for reference), into sample collecting box of filing for reference, the small-particle coal of residue 70%
Sample (sample for future reference), into sample collecting box for future reference；
Technique (3): the raw coal sample of 100% volume prepares the bulky grain coal sample (full water sample) and 30% body of 70% volume
Long-pending little particle coal sample (sample of filing for reference)；
Joint sample preparation crushing technique is selected, when carrying out sample preparation, except level-one crusher is normally opened, secondary breaker is normally opened outer, needs
Determined to be arranged than division, sets the operating status of first-order reduction unit as circulating open close, and set the reduction device unit circle time
It is 2s~5s, the proportionate relationship of opening time t1 and shut-in time t2 are as follows: t1:t2=70%:30% for t；Setting is at this point, second level
Reduction device is normally opened, and the bulky grain coal sample (full water sample) of level-one broken 70% enters full water sample collecting box, in addition 30% it is big
Particle coal sample (full water sample) enters secondary breaker, carries out two-stage crushing, obtains 30% little particle coal sample (sample of filing for reference), this
When, three-level reduction device is normally opened, and 30% little particle coal sample (sample of filing for reference) enters sample collecting box of filing for reference；
Technique (4): the raw coal sample of 100% volume prepares bulky grain coal sample (full water sample), the preparation 20% of 50% volume
Volume little particle coal sample (sample of filing for reference) and 10% volume little particle coal sample (sample for future reference)；
This technique carries out on the basis of technique (3), by second level reduction device, broken to level-one 70% bulky grain
Coal sample carries out division again, sets the operating status of second level reduction device as circulating open close, and set the reduction device unit circle time
It is 2s~5s, the proportionate relationship of opening time t1 and shut-in time t2 are as follows: t1:t2=50%:(70-50 for t) %, it is complete to division
At, 50% bulky grain coal sample (full water sample), into full water sample collecting box, the bulky grain coal sample (abandoning sample) of residue (70-50) %,
Into abandoning sample collecting box；Meanwhile by three-level reduction device to two-stage crushing after, 30% obtained little particle coal sample, carry out again
Secondary division sets the operating status of second level reduction device as circulating open close, and set the reduction device unit circle time as t be 2s~
5s, the proportionate relationship of opening time t1 and shut-in time t2 are as follows: t1:t2=20%:10% is completed, small of 20% to division
Beans sample (sample of filing for reference), into sample collecting box of filing for reference, the little particle coal sample (sample for future reference) of residue 10% is collected into sample for future reference
Case；
In the present embodiment, there are clear superiorities with existing sample making apparatus, first, coal sample can save, existing sample preparation unit exists
When carrying out the independent sample preparation of full water sample, extra full water sample can not be excluded, and can only continue to move toward junior's crusher, it is extra to cause
Full water sample is wasted, and in the present embodiment, as shown in technique (1), extra full water sample can be used as abandoning sample, is discharged to and abandons sample collection
Case；Second, the adjustment of coal sample ratio is simple, especially when to more specification coal sample sample preparations and distribution, it is arranged by fixed than division, it will
The operating status of multistage reduction device is set as circulating open close, while opening/closing time ratio is adjustable, and collection distribution is more accurate,
Precision is high.
Example IV
The present embodiment and embodiment three the difference is that, on the basis of technique (3), weigh to raw coal sample,
By to full water sample needed for raw coal sample and sample preparation, abandon sample, file for reference sample and sample for future reference, carry out quality versus, and be based on embodiment
Quantitative sample preparation circulating open close converts in two, obtains the opening/closing time proportionate relationship of reduction device, finally, being set by fixed than division
It sets, each collecting box coal sample can be realized and collect the controllable purpose of weight, achieve the effect that quantitative division.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the scope of protection of the present invention.Therefore, protection scope of the present invention should be with the protection scope of claims
Subject to.
Claims (4)
1. a kind of multifunctional multistage crushing division combined sample making machine group and its process, a kind of multifunctional multistage is broken
Division combined sample making machine group includes machine unit support, and the machine unit support is equipped with level-one crusher, secondary breaker, level-one material
Channel and second level material channel, which is characterized in that the level-one material channel include level-one feed pipe, the first discharge pipe and
Second discharge pipe, the second level material channel include secondary feed tube road, third discharge pipe and the 4th discharge pipe, described
Reduction device is equipped on level-one feed pipe, the first discharge pipe and secondary feed tube road, the quantity of reduction device is multiple groups, described
For reduction device by division cylinder, outside lever, shaft and interior rotation partition, the interior rotation partition on multiple groups reduction device is located at level-one
In feed pipe, the first discharge pipe and secondary feed tube road, one end of interior rotation partition is welded and fixed with shaft, and the two of shaft
Level-one feed pipe, the first discharge pipe and secondary feed tube road are run through in end, and are gone out by bearing with level-one feed pipe, first
Pipe material and the rotation connection of secondary feed tube road, the division cylinder is hinged by bracket and machine unit support, the outside lever
One end and shaft are welded or are riveted and fix, and the output end of the other end and division cylinder is hinged and connected；
The upper end of the level-one crusher be equipped with level-one feed inlet, lower end be equipped with level-one discharge port, the secondary breaker it is upper
End is equipped with second level feed inlet, and lower end is equipped with secondary discharge port, and the level-one discharge port is connected to level-one feed pipe, the second level
Feed inlet is connected to the second discharge pipe, and the secondary discharge port is connected to secondary feed tube road；
The lower section of first discharge pipe is equipped with the first collecting box and the second collecting box, and second collecting box is located at first and receives
Between header and the first discharge pipe, the lower section of the third discharge pipe is equipped with third collecting box, the 4th discharge pipe
Lower section be equipped with the 4th collecting box；
The division cylinder driving outside lever movement, and then shaft rotation is driven, it is located at level-one feed pipe, first to drive
Interior rotation partition in discharge pipe and secondary feed tube road is swung, adjustment coal sample discharging guiding；
Reduction device is divided into the first-order reduction unit on level-one feed pipe, two on the first discharge pipe by installation site
Three-level reduction device on grade reduction device and secondary feed tube road；
The division cylinder is controlled by PLC controller, and then controls reduction device operation, and there are three types of operating statuses for reduction device, respectively
For normally opened, normally closed and circulating open close；
When first-order reduction unit is normally opened, level-one feed pipe is connected to the first discharge pipe, is not connected to the second discharge pipe, when one
Grade reduction device is normally closed, and level-one feed pipe is connected to the second discharge pipe, is not connected to the first discharge pipe；When second level reduction device
Normally opened, the first discharge pipe is connected to the first collecting box, is not connected to the second collecting box, and when second level reduction device is normally closed, first goes out
Pipe material is connected to the second collecting box, is not connected to the first collecting box；When three-level reduction device is normally opened, second level discharge pipe and third
Discharge pipe connection, and then is connected to third collecting box, is not connected to the 4th discharge pipe, when second level reduction device is normally closed, second level
Discharge pipe is connected to the 4th discharge pipe, and then is connected to the 4th collecting box, is not connected to third discharge pipe；
Determine than sample preparation circulating open close: in the unit circle time, the opening and closing of reduction device interval；Assuming that the unit circle time is t, reduction device
Opening time is t1, shut-in time t2, then t=t1+t2, and the ratio of t1 and t2 can be adjusted by PLC controller；
Quantitative sample preparation circulating open close: taking the coal sample of certain mass, and the coal sample of the big granularity of certain mass and certain is collected after being crushed
The small grain size coal sample of quality.Then calculation formula are as follows: assuming that coal sample quality is M, it is known that the coal sample quality that need to be collected is M1, then abandons
The quality of coal sample are as follows: M-M1；Then reduction device circulation time: t1:t2=M1:(M-M1), t1+t2=t；
When carrying out raw coal sample sample preparation crushing, sample requirement and standard are gone out according to coal sample, there are two kinds for the coal sample particle size produced
The little particle coal sample that situation, respectively partial size are 6mm or the bulky grain coal sample and partial size of 13mm are 3mm；And in the mistake of sample preparation
Cheng Zhong, 6mm or 13mm and 3mm have certain quality requirement；A kind of multifunctional multistage crushing division combines system
The process of model machine group, including a variety of sample preparation techniques, including only producing single sample preparation crushing technique of bulky grain coal sample, only producing
Double sample preparation crushing techniques of little particle coal sample are crushed system according to the fixed joint for producing bulky grain coal sample and little particle coal sample than division
Sampling technology and the joint sample preparation crushing technique that bulky grain coal sample and little particle coal sample are produced according to quantitative division；
Single sample preparation crushing technique, the specific method is as follows:
Level-one crusher is normally opened, and first-order reduction unit is normally opened；At this point, raw coal sample enters level-one crusher, level-one from level-one feed inlet
Sample preparation crushing is to get bulky grain coal sample, at this point, bulky grain coal sample obtained goes out under the action of first-order reduction unit into first
Pipe material；If second level reduction device is normally opened, then bulky grain coal sample fully enters the first collecting box；If second level reduction device is normally closed, then greatly
Particle coal sample fully enters the second collecting box；Such as second level reduction device circulating open close, then bulky grain coal sample is in the first collecting box and
Pro rate between two collecting boxs；
Double sample preparation crushing techniques, the specific method is as follows:
Level-one crusher is normally opened, and secondary breaker is normally opened, and first-order reduction unit is normally closed；At this point, raw coal sample enters from level-one feed inlet
Level-one crusher, level-one sample preparation crushing obtain bulky grain coal sample, and bulky grain coal sample obtained is led under the action of first-order reduction unit
Cross the second discharge pipe, into secondary breaker, carry out two-stage crushing to get little particle coal sample, little particle coal sample obtained into
Enter secondary feed tube road；If three-level reduction device is normally opened, then little particle coal sample fully enters third collecting box；As three-level reduction device is normal
It closes, then little particle coal sample fully enters the 4th collecting box；Such as three-level reduction device circulating open close, then little particle coal sample is collected in third
Pro rate between case and the 4th collecting box；
It is described according to the fixed joint sample preparation crushing technique for producing bulky grain coal sample and little particle coal sample than division, specific method
It is as follows:
Level-one crusher is normally opened, and secondary breaker is normally opened, first-order reduction unit circulating open close according to a certain percentage；At this point, raw coal sample
Enter level-one crusher from level-one feed inlet, level-one sample preparation crushing obtains bulky grain coal sample, and subsequent first-order reduction unit is according to certain ratio
Example circulating open close, will be in bulky grain coal sample pro rate to the first discharge pipe and secondary breaker obtained；Go out into first
Bulky grain coal sample in pipe material in the case where second level reduction device acts on according to a certain percentage, the first collecting box and the second collecting box it
Between be allocated, into the bulky grain coal sample in secondary breaker, carry out two-stage crushing, little particle coal sample be made, then passes through
Three-level reduction device according to a certain percentage, is allocated between third collecting box and the 4th collecting box；
The joint sample preparation crushing technique that bulky grain coal sample and little particle coal sample are produced according to quantitative division, specific method
It is as follows:
Level-one crusher is normally opened, and secondary breaker is normally opened, first-order reduction unit circulating open close, second level reduction device circulating open close, three-level
Reduction device circulating open close；At this point, the raw coal sample of certain mass is taken to enter level-one crusher, the broken system of level-one from level-one feed inlet
Sample, obtains bulky grain coal sample, and subsequent first-order reduction unit circulating open close is rationed to the first discharge nozzle by bulky grain coal sample obtained
In road and secondary breaker；Into the bulky grain coal sample in the first discharge pipe under the effect of second level reduction device, collected first
It is quantitatively allocated between case and the second collecting box, into the bulky grain coal sample in secondary breaker, carries out two-stage crushing, be made
Little particle coal sample carries out rationed then by three-level reduction device between third collecting box and the 4th collecting box.
2. a kind of multifunctional multistage crushing division combined sample making machine group as described in claim 1 and its process, feature
It is, the level-one crusher is crushed motor driven by level-one.
3. a kind of multifunctional multistage crushing division combined sample making machine group as described in claim 1 and its process, feature
It is, the secondary breaker is double-roll crusher.
4. a kind of multifunctional multistage crushing division combined sample making machine group as described in claim 1 and its process, feature
It is, the secondary breaker passes through two-stage crushing motor driven.
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| CN112362691A (en) * | 2020-10-29 | 2021-02-12 | 辽宁科技大学 | Device and method for detecting coal expansion pressure |
| CN113776911A (en) * | 2021-09-15 | 2021-12-10 | 镇江市科瑞制样设备有限公司 | Intelligent control method of sampling machine with self-adaptive division opening and speed |
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