CN104897440B - Sample preparation reduction device - Google Patents
Sample preparation reduction device Download PDFInfo
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- CN104897440B CN104897440B CN201510207889.5A CN201510207889A CN104897440B CN 104897440 B CN104897440 B CN 104897440B CN 201510207889 A CN201510207889 A CN 201510207889A CN 104897440 B CN104897440 B CN 104897440B
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- sample
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Abstract
The present invention discloses a kind of sample preparation reduction device, is related to coal sample sample making technology field, can solve the problem that the low technical problem of reduction device operational reliability.The sample preparation reduction device includes distributing device, division funnel and sample leaving device successively from top to bottom；Distributing device includes the distributing device body that outer peripheral face is circular conical surface, and the outer peripheral face of distributing device body is provided with several flow-guiding channels, and each flow-guiding channel is obliquely installed from top to bottom, and incline direction is identical；Distributing device body empty set is being stood up in the fixing axle put always, and fixing axle is fixedly connected with division funnel, and fixing axle and division funnel coaxial line；Division funnel is turbination structure, and the side wall of division funnel is provided with material-dropping hole.The sample preparation reduction device is used to carry out division to sample.
Description
Technical field
The present invention relates to coal sample sample making technology field, more particularly to a kind of sample preparation reduction device.
Background technology
During sample preparation is carried out to coal sample, division is committed step.Division is in the case where coal sample size is constant
Reduce coal sample amount, with reduce follow-up work amount and reach examine needed for coal sample amount.Under normal circumstances, using sample preparation reduction device pair
Coal sample carries out division.
Above-mentioned sample preparation reduction device includes distributing device, division funnel, sample leaving device, motor and transmission mechanism etc., wherein, contracting
Funnel is divided to be provided with material-dropping hole.When the sample preparation reduction device carries out division to coal sample, motor drives transmission mechanism operating, passes
Motivation structure drives the rotation of division funnel, and the division funnel of rotation receives the coal sample being scattered from distributing device, and leads to part coal sample
The material-dropping hole crossed on division funnel is dropped into sample leaving device, is reached with this by coal sample division, is obtained required coal sample in the bucket that keeps sample
Purpose.
Using during above-mentioned sample preparation reduction device, it is necessary to distributing device, division funnel, sample leaving device, motor, transmission mechanism and its
His part cooperating, the common division for completing coal sample, still, because the parts of the sample preparation reduction device are more, structure together
It is more complicated, once a certain part (motor) of the sample preparation reduction device goes wrong, whole sample preparation reduction device will be caused to stop
Only work, it can be seen that, the operational reliability of the sample preparation reduction device is relatively low.
The content of the invention
The present invention provides a kind of sample preparation reduction device, can solve the problem that the low technical problem of operational reliability.
To reach above-mentioned purpose, the present invention is adopted the following technical scheme that：
The present invention provides a kind of sample preparation reduction device, and the sample preparation reduction device includes distributing device, division and leaked successively from top to bottom
Bucket and sample leaving device；Wherein,
The distributing device includes the distributing device body that outer peripheral face is circular conical surface, and the outer peripheral face of the distributing device body is provided with number
Individual flow-guiding channel, each flow-guiding channel is obliquely installed from top to bottom, and incline direction is identical；The distributing device body empty set exists
Stand up always in the fixing axle put, the fixing axle is fixedly connected with the division funnel, and the fixing axle and the division
Funnel coaxial line；
The division funnel is turbination structure, and the side wall of the division funnel is provided with material-dropping hole.
When using sample preparation reduction device division sample of the present invention, first, sample enters distributing device body peripheral
In the flow-guiding channel in face, and the pressure in the presence of self gravitation to flow-guiding channel application straight down, due to flow-guiding channel
It is obliquely installed from top to bottom, and incline direction is identical, so that the pressure that sample is applied to flow-guiding channel produces promotion distributing device
The tangential component of the horizontal direction of rotation, the tangential component and then promotion distributing device of the horizontal direction rotate around fixing axle, cloth
Device is in rotary course, and the sample in flow-guiding channel is equably scattering into downwards the bucket intracavitary of division funnel；Then, division funnel
Bucket intracavitary part sample pass through division funnel side wall on material-dropping hole drop into sample leaving device, so as to realize the contracting of sample
Point.When the sample preparation reduction device is finished to sample division, due to there is no sample in the flow-guiding channel of distributing device body, therefore will not
Continue the tangential component that generation promotes the horizontal direction of distributing device rotation, distributing device will be automatically stopped rotation.It is of the present invention
Sample preparation reduction device is during sample division, and distributing device can just be promoted automatically to the pressure of distributing device by only relying on sample self gravitation
Rotation, realizes the automatic division of sample, therefore, compared with existing sample preparation reduction device, without motor and transmission mechanism etc. pair
Distributing device is driven, so as to improve the operational reliability of sample preparation reduction device.
Brief description of the drawings
Fig. 1 is a kind of partial cross-sectional perspective view of the sample preparation reduction device described in the embodiment of the present invention；
Fig. 2 is another partial cross-sectional perspective view of the sample preparation reduction device described in the embodiment of the present invention；
Fig. 3 is the sample preparation reduction device longitudinal section sectional view described in the embodiment of the present invention；
Fig. 4 be the embodiment of the present invention described in sample preparation reduction device in distributing device sectional view.
Description of reference numerals：
1- distributing devices, 2- division funnels, 3- sample leaving devices, 4- fixing axles, 5- feeding warehouses, 6- supports；
101- distributing device bodies, 102- blades, 103- flow-guiding channels；
201- material-dropping holes, 202- opening regulating parts, 203- abandons sample mouthful；
301- sample leaving openings；
501- charging apertures.
Embodiment
In order to make it easy to understand, it is right below in conjunction with the accompanying drawings, the sample preparation reduction device described in the embodiment of the present invention is retouched in detail
State.
The present embodiment provides a kind of sample preparation reduction device, and as shown in Figure 1-Figure 3, the sample preparation reduction device includes successively from top to bottom
Distributing device 1, division funnel 2 and sample leaving device 3；
Distributing device 1 includes the distributing device body 101 that outer peripheral face is circular conical surface, and the outer peripheral face of distributing device body 101 is provided with number
Individual flow-guiding channel 103, each flow-guiding channel 103 is obliquely installed from top to bottom, and incline direction is identical；The empty set of distributing device body 101
Standing up always in the fixing axle 4 put, fixing axle 4 is fixedly connected with division funnel 2, and fixing axle 4 and division funnel 2 are coaxial
Line；
Division funnel 2 is turbination structure, and the side wall of division funnel 2 is provided with material-dropping hole 201.
During sample preparation reduction device division sample, first, sample enters the water conservancy diversion of the outer peripheral face of distributing device body 101
In passage 103, and apply in the presence of self gravitation pressure straight down to flow-guiding channel 103, due to flow-guiding channel 103
It is obliquely installed from top to bottom, and incline direction is identical, so that the active force that sample is applied to flow-guiding channel 103 produces promotion cloth
The tangential component for the horizontal direction that glassware 1 rotates, the tangential component and then promotion distributing device 1 of the horizontal direction revolve around fixing axle 4
Turn, distributing device 1 is in rotary course, and the sample in flow-guiding channel 103 is equably scattering into downwards the bucket intracavitary of division funnel 2；
Then, the material-dropping hole 201 on the wall of side that the part sample of the bucket intracavitary of division funnel 2 passes through division funnel 2 drops into sample leaving device 3
It is interior, so as to realize the division of sample.When the sample preparation reduction device is finished to sample division, due to the flow-guiding channel of cloth body 1
There is no sample in 103, therefore will not continue to produce the tangential component for the horizontal direction for promoting distributing device 1 to rotate, distributing device 1 will be certainly
It is dynamic to stop the rotation.
The sample preparation reduction device is during sample division, and only relying on sample self gravitation just can be certainly to the pressure of distributing device 1
It is dynamic to promote distributing device 1 to rotate, realize the automatic division of sample, therefore, compared with existing sample preparation reduction device, without motor,
Transmission mechanism etc. is driven to distributing device 1, the factor of influence sample preparation reduction device normal work is reduced, so as to improve sample preparation
The operational reliability of reduction device.
In addition, compared with sample preparation reduction device of the prior art, above-mentioned sample preparation reduction device during sample division, due to
Do not have motor and transmission mechanism in operation process produced by unfavorable disturbance factor, therefore avoid the unfavorable disturbance because
Influence of the element to sample division precision, so as to improve division precision；Sample rotates under the drive of distributing device 1, makes sample edge
The circumference of distributing device 1 is uniformly scattered, it is to avoid sample is accumulated in a direction, that is, is eliminated the direction tendency that sample is scattered, entered one
Step improves division precision；When not having sample in distributing device 1, distributing device 1 will be automatically stopped rotation, reduce and even avoid cloth
The idle running phenomenon of glassware 1, so as to improve the service life of sample preparation reduction device, and has saved the energy.
In above-described embodiment, the generation type of flow-guiding channel 103 has a variety of, for example the outer peripheral face in distributing device body 101
Provided with top-down groove；And for example, as shown in figure 4, the outer peripheral face of distributing device body 101 is provided with several blades 102, adjacent two
Region between the outer peripheral face of individual blade 102 and distributing device body 101 constitutes flow-guiding channel 103.Led in use, sample is entered
After circulation road 103, sample self gravitation applies pressure to blade 102, and produces the tangential component of horizontal direction, so as to promote
Distributing device 1 rotates around fixing axle 4, distributing device 1 is realized the uniform function of being scattered of sample.When the structure chi of distributing device body 101
When very little and flow-guiding channel 103 incline direction is determined, the sample flow in flow-guiding channel 103 is bigger, and sample is to flow-guiding channel 103
Pressure it is bigger, the tangential component of produced horizontal direction is also bigger, and the rotating speed of distributing device 1 is bigger, so that sample blanking
Faster, division efficiency is higher.
In addition, blade 102 can be using conventional material, for example, stainless steel etc., the blade of conventional material can reduce cloth
The material cost of device 1.In addition, the connected mode between blade 102 and distributing device body 101 can be using a variety of, for example, blade
102 can be integral type structure with distributing device body 101, or blade 102 is welded on into the outer peripheral face of distributing device body 101, or
Blade 102 is fixed on distributing device body 101 using the detachable mode that is fixedly connected.Furthermore, the shape of blade 102 can be with
Using a variety of, for example, plate blade, circular arc narrow blades, curved blade, wing blades or plate curve backward inclined blade etc..
In above-described embodiment, in order to improve the uniformity of being scattered of sample, as shown in figure 4, several blades 102 are along distributing device sheet
Body 101 is arranged circumferentially, and flow-guiding channel 103 also will be circumferentially uniformly distributed so that flowed during charging in each flow-guiding channel 103
The sample of logical equivalent, so as to ensure the whole circumferential sample distributing homogeneity of distributing device body 101, improves being scattered for sample uniform
Property.
When carrying out division to sample, in order to reduce in airborne dust produced during sample charging, above-described embodiment, such as Fig. 1-
Shown in Fig. 3, sample preparation reduction device also includes feeding warehouse 5, and distributing device 1 is located in feeding warehouse 5, and feeding warehouse 5 is provided with charging aperture 501, enters
Material mouth 501 is located at the top of distributing device 1.In the starting stage of sample division, sample is dropped on blade 102 by charging aperture 501,
Airborne dust produced by during being scattered of sample is stopped by feeding warehouse 5, so as to avoid airborne dust from being leaked in outside air, keeps away
Exempt from environmental pollution, beneficial to environmental protection.
In above-described embodiment, in order to be further ensured that the division precision of sample, as shown in Figure 1-Figure 3, feeding warehouse 5 is designed
Coning shell structure, the big end opening of feeding warehouse 5 is connected with the big end opening of division funnel 2, and connected mode can be with this
Connect or be indirectly connected with for directly contact.The feeding warehouse 5 of conical shell structure may be such that the inwall and distributing device 1 of feeding warehouse 5
Profile be adapted, and make to keep certain interval between the inwall of feeding warehouse 5 and the blade 102 of distributing device 1, make sample in centrifugation
It can quickly be blocked, and be dropped into again in flow-guiding channel 103 after the inwall that feeding warehouse 5 is flown under power effect, so as to ensure
Eventually flowing to for sample, makes the sample in the flow-guiding channel 103 of the outer peripheral face of distributing device 1 drop into the bucket intracavitary of division funnel 2
Presumptive area, to be further ensured that the accurate division of sample.In addition, conical shell structure can directly be rolled by metallic plate
Form, not only simplify the structure of sample preparation reduction device, also reduce material and cost of manufacture.
In above-described embodiment, in order that whole samples in the flow-guiding channel 103 of the outer peripheral face of distributing device 1 smoothly drop into contracting
Divide the presumptive area of the bucket intracavitary of funnel 2, as shown in figure 3, the big end opening diameter dimension of feeding warehouse 5 is less than or equal to division funnel
2 big end opening diameter dimension.So that the process of sample in flow-guiding channel 103 in the bucket intracavitary for dropping into division funnel 2
In will not be stopped, whole samples in flow-guiding channel 103 is directly scattering into the fate of the bucket intracavitary of division funnel 2
Domain, that is, ensure the smooth blanking of whole samples.
For the division ratio of accurate adjustment sample preparation reduction device, being provided with the side wall of division funnel 2 is used to adjust blanking
The opening regulating part 202 of hole opening degree, as shown in Figure 1-Figure 3.Wherein, division ratio refers to the sample that drops into sample leaving device 3
The amount of keeping sample and the ratio for abandoning sample amount of remaining sample in division funnel 2.It is more when keeping sample when needing, pass through opening regulating part
202 tune up the opening degree of material-dropping hole 201, less when keeping sample when needing, by opening regulating part 202 by material-dropping hole 201
Opening degree is turned down, i.e., by opening regulating part 202 by the opening adjustment of material-dropping hole 201 to suitable size, so that sample preparation is contracted
Device is divided to obtain accurate division ratio.Further, it is also possible to adjust sample preparation reduction device by adjusting the quantity of material-dropping hole 201
Division ratio, when need it is more open multiple material-dropping holes 201 when keeping sample, conversely, opening a small number of material-dropping holes 201.
Specifically, the planform of opening regulating part 202 can be a variety of, for example, opening regulating part 202 is designed to put down
Hardened structure, as depicted in figs. 1 and 2, and sets elongated hole, Matching installation has regulating bolt in elongated hole on opening regulating part 202
Or screw, opening regulating part 202 is fixed adjustably to the blanking on the side wall of division funnel 2 by regulating bolt or screw
The top in hole 201.
In order to which the remaining sample of the bucket intracavitary of division funnel 2 is discharged, it is provided with the bottom of division funnel 2 and abandons sample mouthful 203,
And make to abandon sample mouthful 203 and extend out to outside sample leaving device 3, it is arranged such, can be by remaining sample after the bucket intracavitary division of division funnel 2
The automatic bottom for being gathered in division funnel 2 of material, and warp this abandon sample mouthful 203 and smoothly discharge unwanted sample.
In addition, the mode that is fixedly connected between division funnel 2 and fixing axle 4 has a variety of, for example, can be by both
Between support 6 is set, as shown in Figure 1-Figure 3, support 6 is installed in the inner side of division funnel 2, fixing axle 4 fix on the frame 6, from
And realize being fixedly connected for fixing axle 4 and division funnel 2；For another example, fixing axle 4 can also be designed to be able to directly leak with division
The special-shaped axis that the inner side of bucket 2 is fixedly connected.
In order to smoothly collect the sample in sample leaving device 3, sample leaving device 3 is designed to turbination funnel structure, division is leaked
Bucket 2 is arranged on the bucket intracavitary of sample leaving device 3, and the big end opening of sample leaving device 3 is connected with the big end opening of division funnel 2, connection at this
Mode can be connected or be indirectly connected with for directly contact, be arranged such, material-dropping hole 201 of the sample through division funnel 2 can be made straight
The bucket intracavitary for dropping into sample leaving device 3 is connect, and is moved downwards along the interior inverted cone of sample leaving device 3, the bottom of sample leaving device 3 is gathered in automatically
Portion, in order to take out required sample.In addition, the big end opening of sample leaving device 3 can also be connected with the big end opening of feeding warehouse 5, should
Place's connected mode can also be connected or be indirectly connected with for directly contact.
In order to which the sample for more easily being assembled the bottom of sample leaving device 3 takes out, it is provided with and keeps sample in the bottom of sample leaving device 3
Mouth 301, so that the sample in sample leaving device 3 automatically takes out from the sample leaving opening 301.
Keep sample passage further, it is also possible to be provided with the inner side of sample leaving device 3 and lead to the helical form of sample leaving opening 301.
In above-described embodiment, sample is in the dropping process of the material-dropping hole 201 of division funnel 2, in order to avoid the production of airborne dust
Raw, the big end opening diameter dimension of sample leaving device 3 is more than or equal to the big end opening diameter dimension of division funnel 2.It is arranged such, can be with
In the cavity that division funnel 2 is completely disposed to sample leaving device 3, airborne dust quilt of the sample produced by the dropping process of material-dropping hole 201
The inwall of sample leaving device 3 is stopped, so as to prevent airborne dust from being leaked in outside air, it is to avoid environmental pollution, beneficial to environmental protection.
In addition, in the above-described embodiments, the big end opening of sample leaving device 3 contacts connection with the big end opening of feeding warehouse 5, that is, stays
Sample device 3 and feeding warehouse 5 wrap up other parts of sample preparation reduction device in it, so as to strengthen the overall knot of whole sample preparation reduction device
Structure.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention described should be defined by scope of the claims.
Claims (10)
1. a kind of sample preparation reduction device, sample preparation reduction device includes distributing device, division funnel, the distributing device periphery successively from top to bottom
Face is the distributing device body of the circumference conical surface, it is characterised in that the sample preparation reduction device includes distributing device, division successively from top to bottom
Funnel and sample leaving device；
The distributing device includes the distributing device body that outer peripheral face is circular conical surface, and the outer peripheral face of the distributing device body is led provided with several
Circulation road, each flow-guiding channel is obliquely installed from top to bottom, and incline direction is identical；The distributing device body empty set is always
Stand up in the fixing axle put, the fixing axle is fixedly connected with the division funnel, and the fixing axle and the division funnel
Coaxial line；
The division funnel is turbination structure, and the side wall of the division funnel is provided with material-dropping hole.
2. sample preparation reduction device according to claim 1, it is characterised in that the outer peripheral face of the distributing device body is provided with several
Region between the outer peripheral face of blade, the two neighboring blade and the distributing device body constitutes the flow-guiding channel.
3. sample preparation reduction device according to claim 2, it is characterised in that the sample preparation reduction device also includes feeding warehouse, institute
Distributing device is stated in the feeding warehouse, the feeding warehouse is provided with charging aperture, the charging aperture is located at the top of the distributing device.
4. sample preparation reduction device according to claim 3, it is characterised in that the feeding warehouse is conical shell structure, institute
The big end opening for stating feeding warehouse is connected with the big end opening of the division funnel.
5. sample preparation reduction device according to claim 4, it is characterised in that the big end opening diameter of the feeding warehouse is less than etc.
In the big end opening diameter of the division funnel.
6. the sample preparation reduction device according to claim any one of 1-5, it is characterised in that set on the side wall of the division funnel
There is the opening regulating part for adjusting the material-dropping hole opening degree.
7. sample preparation reduction device according to claim 1, it is characterised in that the bottom of the division funnel, which is provided with, abandons sample mouthful,
The sample mouthful of abandoning is extend out to outside the sample leaving device.
8. sample preparation reduction device according to claim 7, it is characterised in that be installed with support on the inside of the division funnel,
The fixing axle is fixed on the bracket.
9. sample preparation reduction device according to claim 8, it is characterised in that the sample leaving device is turbination funnel structure,
The division funnel is located at the bucket intracavitary of the sample leaving device, and the big end of the big end opening and the sample leaving device of the division funnel
Opening connection.
10. sample preparation reduction device according to claim 9, it is characterised in that the big end opening diameter dimension of the sample leaving device
More than or equal to the big end opening diameter dimension of the division funnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510207889.5A CN104897440B (en) | 2015-04-28 | 2015-04-28 | Sample preparation reduction device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510207889.5A CN104897440B (en) | 2015-04-28 | 2015-04-28 | Sample preparation reduction device |
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| CN104897440A CN104897440A (en) | 2015-09-09 |
| CN104897440B true CN104897440B (en) | 2017-09-22 |
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| CN201510207889.5A Active CN104897440B (en) | 2015-04-28 | 2015-04-28 | Sample preparation reduction device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525480B (en) * | 2016-11-10 | 2023-10-20 | 长沙开元仪器有限公司 | Dividing machine |
| CN111693340A (en) * | 2020-07-24 | 2020-09-22 | 昆明理工大学 | Rotary conical sampling device and method |
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