CN105203365B - A kind of automatic sample-making system and its reduction device - Google Patents
A kind of automatic sample-making system and its reduction device Download PDFInfo
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- CN105203365B CN105203365B CN201510713674.0A CN201510713674A CN105203365B CN 105203365 B CN105203365 B CN 105203365B CN 201510713674 A CN201510713674 A CN 201510713674A CN 105203365 B CN105203365 B CN 105203365B
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Abstract
The present invention provides automatic sample-making system and its reduction device, including horizontally disposed cavity components, the rotary shaft that is installed in cavity components and flat board cutter；Flat board cutter is located in cavity components, has space with cavity components upper surface and be fixedly connected with the rotating shaft；The upper cover plate component of cavity components has sample introduction chute component；The lower cover board component of cavity components, which has, abandons sample chute component and the chute component that keeps sample；There is cavity components inside upper surface fixation to sweep device；There is the activity for being fixedly connected with the rotating shaft and being bonded lower cover board component to sweep device on the downside of flat board cutter；Activity sweeps device and is bonded with lower cover module inner.Repellency will not be produced to different particle size collections by division raw meal particle size, reduction device of the present invention because the collecting board opening size of cutter is much larger than；It is simultaneously fixed to sweep device and activity sweeps the linkage of device, increment can will be collected into after division and will all be sent to and be kept sample in chute so that keeping sample for being collected into is representative.
Description
Technical field
The present invention relates to sample splitting preparing technical field, more particularly to a kind of reduction device.
Background technology
One of the step of sample splitting (sample splitting) is the processing of the samples such as chemical analysis, being will by certain
Ask, the sample for being crushed to certain granules diameter be divided into the sample that several pieces have equal reliability, or processing, it is broken before
The operating process reduced to primary sample.
Being measured for guarantee Coal Quality has reasonability, the more multigroup sample of the existing more random acquisitions of coal samling, and will
Multigroup sample is sufficiently mixed rear division sample preparation, for follow-up test chemical.
At present, the reduction device used in coal sample device in mechanization sampling system is mostly cell formula reduction device, rotating cylinder
Formula reduction device, rotation inclined tube-type reduction device, the common feature of these reduction devices is big by adjusting the opening of division mouth
Division ratio is determined in small realization, is completed according to by the keep sample opening size of quality adjustment division mouth of the actual weight of division sample and needing
Corresponding division.
But using above type of reduction device, when division ratio is smaller, the opening size of division mouth is difficult to reach
3 times by division material particles degree of national Specification；Meanwhile during division, due to the opening size mistake of division mouth
It is small so that the collection to specific granularity material produces repellency, and the increment variable grain degree for causing to collect is distributed and by division
The distribution bias of material particles degree is excessive, and division precision does not reach the requirement of national standard, and system bias is larger, is collected after division
It is representative poor to keep sample；
The content of the invention
The requirement that is up to state standards is difficult to solve existing reduction device opening degree when division ratio is smaller, and to spy
Determine the problem of granularity material collection produces repellency, a kind of new reduction device of the present invention and using this reduction device from
Dynamic sample-preparing system.
The present invention provides a kind of reduction device, including horizontally disposed cavity components, is installed in the cavity components simultaneously
The power part that rotary shaft, flat board cutter and the driving rotary shaft being vertically arranged rotate；The flat board cutter is located at
In the cavity components, there is space with the cavity components upper surface and be fixedly connected with the rotary shaft；The cavity group
The upper cover plate component of part has sample introduction chute component；The lower cover board component of the cavity components, which has, to be abandoned sample chute component and keeps sample
Chute component；The sample introduction chute component and the sample chute component of abandoning are correspondingly arranged；The cavity components inside upper surface, lean on
There is the nearly chute device region that keeps sample fixation to sweep device；Have to fix with the rotary shaft on the downside of the flat board cutter and connect
The activity for connecing and being bonded the lower cover board component sweeps device；The activity sweeps device and is bonded with the lower cover module inner.
The cavity components of reduction device provided by the invention have the feed chute component of position correspondence, abandon sample chute group
Part, flat board cutter through feed chute component and abandon sample chute component space when can perpendicular cuts stream tunneling boring and obtain
An increment is obtained, increment is transported to when near the chute component that keeps sample and scraped simultaneously by sweeping device close to the fixation for the chute component that keeps sample
Through the chute component discharge that keeps sample.The increment being collected into simultaneously is trickled down in lower cover board component during transhipment due to inertia
The activity that surface material is installed in below flat board cutter sweeps device and swept to keeping sample in chute.Due to the collecting board of cutter
Opening size is much larger than by division raw meal particle size, will not produce repellency to different particle size collections.It is simultaneously fixed sweep device and
Activity sweeps the linkage of device, increment can will be collected into after division and is all sent to and keep sample in chute.So that what is be collected into keeps sample
It is representative.
Optionally, also have on the cavity components and set the cutting Separation control that the power part rotates interval time
Device.
As a modification of the present invention, control power part is set to rotate the cutting interval controller of interval time.
Under conditions of the defined granularity by division, matter can be determined under various supplied materials quality conditions by cutting the control of interval time and realizing
Division is measured, improves the applicability of reduction device.
Optionally, the flat board cutter passes through in anchor ear fixation and the rotary shaft.
Optionally, the cavity components also include at least two arc side plate components；The upper cover plate component, lower cover group
Part and the arc side plate inter-module are detachably connected.
Flat board cutter is fixed in rotary shaft by anchor ear, the dismounting and change of flat board cutter can be facilitated.
Optionally, the activity sweeps device and is fixedly connected with the flat board cutter；The height that the activity sweeps device is
The clearance height of the flat board cutter and the lower cover board component.
Optionally, in addition to it is installed on the blast cleaning agency of the cavity components side.
Blast cleaning agency is set, is cleaned after the completion of each division using blast on the inside of cavity components, can prevent from remaining
Sample pollutes next division sample.
Optionally, the lower cover board component also has fixed otic placode；Have on the fixed otic placode and be used to fix the contracting
The through hole of separating device.
Optionally, the power part includes motor, is installed on the motor and the rotary shaft shaft end
Sprocket wheel and the chain being arranged between two sprocket wheels.
The present invention provides a kind of automatic sample-making system, including conveying device, weighing device, breaker, drying device, system
Powder device and foregoing reduction device.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the first angle overall structure figure of reduction device of the present invention；
Fig. 2 is the second angle overall structure figure of reduction device of the present invention；
Fig. 3 is reduction device sectional view of the present invention；
Wherein：1- cavity components, 11- upper cover plates component, 12- lower covers board component, 13- arc side plates component, 14- fixed ears
Plate, 2- flat boards cutter, 3- feed chutes component, 4- abandon sample chute component, 5- keeps sample chute component, 6-, which are fixed, sweeps device, 7-
Cut interval controller, 9- chain wheel driving mechanisms, 10- blast cleaning agencies.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Fig. 1 is the first angle overall structure figure of reduction device of the present invention, and Fig. 2 is the second angle of reduction device of the present invention
Overall structure figure, Fig. 3 are reduction device sectional view of the present invention, as can be seen from Figure the division dress in the specific embodiment of the invention
Put including cavity components 1, in the intermediate region of cavity components 1, the rotary shaft that is vertically arranged, power that driving rotary shaft rotates
Part and the flat board cutter 2 for being installed on the inner side of cavity components 1；Flat board cutter 2 be fixedly connected with the rotating shaft and with cavity group
The upper cover plate of part 1 has space；The upper cover plate of cavity components 1 is with sample introduction chute component, lower cover with the and of chute component 5 that keeps sample
Abandon sample chute component 4；Sample introduction chute component and abandon sample chute component 4 and be correspondingly arranged in vertical direction.In addition, in cavity components 1
Also there is fixation to sweep device 6 close to the region of chute component 5 that keeps sample on the inside of upper cover plate.
Using the reduction device of said structure, treat that the material of division is entered in cavity components 1 by sample introduction chute component
Side, flat board cutter 2 rotate horizontally under the drive of power part；Treat that flat board cutter 2 moves to feed chute component 3 and abandoned
When between sample chute component 4, material retains collection by flat board cutter 2；And receipts are not retained when flat board cutter 2 continues to rotate
When collecting material, material abandons sample by abandoning the outflow formation of cavity components 1 of sample chute component 4.Due to flat board cutter 2 and cavity components
There is the volume that the volume in space and space is more than cut material between 1, therefore retention sample is carried in cavity in flat board cutter 2
It will not be departed from during 1 internal motion of component by the cutting of the inner side of cavity components 1；And the area upper surface that keeps sample of the inner side of cavity components 1 has
Fixation sweep device 6, when flat board cutter 2 move to close to keep sample chute component 5 when, fixation sweep on device 6 and flat board cutter 2
Surface, which is bonded, causes retention sample to be swept to keeping sample chute component 5 and flowed out from the chute component 5 that keeps sample.
In actual division, because flat board cutter 2 rotates caused centrifugal action, being throttled material can cut from flat board
Trickled down on device 2 to the lower surface of cavity components 1；Therefore, it can also be set in the following table face piece of flat board cutter 2 and cavity components 1
Activity sweeps device, and activity sweeps device and is fixedly connected with rotary shaft；Under the drive of rotary shaft, activity, which sweeps device, will trickle down to cavity
The material of the lower surface of component 1 is cleaned to the chute component 5 that keeps sample.
Reduction device provided by the invention, the collecting board opening size of flat board cutter 2 are much larger than by division raw meal particle size,
Repellency will not be produced to different particle size collections.It is simultaneously fixed to sweep device 6 and activity sweeps the linkage of device, can will be by after division
It is collected into increment and is all sent to and keep sample in chute so that keeping sample for being collected into is representative.
As a further improvement, activity can be swept to device to be arranged on the downside of flat board cutter 2, cut itself and flat board
Device 2 is fixedly connected, and the height that such activity sweeps device is just the clearance height of flat board cutter 2 to the lower surface of cavity components 1.
According to quality division requirement is determined, in the case where feeding sample quality difference, division ratio can change accordingly.This
Invention can change time of the flat board cutter 2 by sample introduction chute component by two ways：One kind is change flat board cutter 2
Panel size, another kind for change flat board cutter 2 in the time through between feed chute component 33.
Also have setting control dynamic as a kind of concrete application, on the cavity components 1 in the embodiment of the invention
Power part rotates the cutting interval controller 7 of interval time, determines to cut according to by the gross mass of division material and the minimum amount of keeping sample
Cut interval time.Specifically, cutting interval controller 7 can use the rotation position information of proximity switch detection flat board cutter 2
Judge and whether control flat board cutter 2 revolves the residence time △ t after turning around.
As another concrete application, in the embodiment of the invention, for varigrained material division, not
On the premise of changing feed rate CR, cutting speed Vc, the opening size that can change arc flat board in flat board cutter 2 is big
It is small.The minimum amount of keeping sample after the division of defined can equally be obtained.Certainly, the cutting of flat board cutter 2 interval △ can also be changed simultaneously
T, the division requirement under the conditions of adaptation is a variety of.
Using above method, on the premise of identical division granularity, for different quality by division material, pan feeding flow
CR, cutting speed VcCutter opening size w is constant, and cutting times are more than 60 times, and cutting interval △ t are with by the matter of division material
Measure m change in ratio change under the conditions of, at the uniform velocity, vertical tunneling boring cutting material flow, you can obtain GB19494.2 or
The minimum amount of keeping sample after the division of ISO13909 defineds.
In the embodiment of the invention, flat board cutter 2 can be fixed in rotary shaft using anchor ear, dismounting
As long as the bolt on anchor ear is dismantled during flat board cutter 2.Flat board cutting is dismounted to be further easy to open cavity components 1
Device 2, cavity components 1 are made up of the semicircular arc lateral plate component 13 of lower half flange on two opposite opened bands；Upper cover plate component 11, under
Cover plate assembly 12 and arc side plate component 13 are fixed into cavity components 1 by screw or bolt connection.Such as need to change flat board cutting
Device 2, directly dismantle an arc side plate component 13.In a particular application, two semicircle arc side plates can directly be used
Form the circular ring structure of cavity components 1.
Further, fixed otic placode 14 can be also set in the side of lower cover board component 12, and set and lead on fixed otic placode 14
Hole, for whole reduction device to be fixed on into other equipment.
After the completion of a division, the division sample of the inner side of cavity components 1 residual may pollute follow-up division and keep sample；To avoid
This problem, also blast cleaning agency 10 can be installed on the inside of cavity components 1, pass through blast cleaning agency after the completion of a division
10 clean the residual sample in cavity components 1.
It can be seen that from accompanying drawing, in embodiment of the invention, power part includes motor, installed in driving
Sprocket drive structure between motor and rotary shaft shaft end.Sprocket drive structure specifically wraps two sprocket wheels and middle chain；Driving
Driving torque caused by motor is through chain drive to rotary shaft.Certainly, in other embodiments, also directly it can set and rotate
The motor being fixedly connected, rotated using motor direct drive rotary shaft.
Separately it is seen that in the specific embodiment of the invention, feed chute component 33, abandon sample chute component 4 and stay
The end of sample chute component 5 is flange plate structure, and upper cover plate component 11 or lower cover board component are easily fixed on using screw
On 12.
It is just representative when needing to ensure that division number is more than more than 60 times using cutting division according to national standard.
Usage time interval controller in a concrete application, pan feeding flow CR, cutting times Z, cutting speed Vc, keep sample mass M1
With the size of flat board cutter it is certain in the case of, single cut collecting amount I can be obtained by division quality m according to differentm、
The time t1 and cutting interval time △ that clipping time t ', the board-like cutter of flat board cutter 2 through charging aperture rotate a circle
T, division total time t0.In the reduction device of a specific size, so that 10mm keeps sample granularity as an example, the quality that keeps sample is 10kg, Z=
60th, pan feeding flow CRUnder the premise of being 1/2 circumference for 0.333kg/s, board-like cutter size, the cutting under each quality of material is obtained
Interval time △ t such as subordinate list.
Operating parameter under subordinate list difference supplied materials quality condition
| M | M1 | t0 | △t | t/ | t1 |
| 20 | 10 | 60 | 0.5 | 0.5 | 1 |
| 25 | 10 | 75 | 0.75 | 0.5 | 1 |
| 30 | 10 | 90 | 1 | 0.5 | 1 |
| 45 | 10 | 135 | 1.25 | 0.5 | 1 |
| 55 | 10 | 165 | 1.75 | 0.5 | 1 |
| 60 | 10 | 180 | 2 | 0.5 | 1 |
| 85 | 10 | 255 | 2.25 | 0.5 | 1 |
| 125 | 10 | 375 | 5.25 | 0.5 | 1 |
| 150 | 10 | 450 | 6.5 | 0.5 | 1 |
The present invention additionally provides the automatic sample-making system using above-mentioned reduction device in addition to the reduction device for providing the above.
In addition to above-mentioned reduction device, this sample-preparing system also includes conveying device, weighing device, reducing mechanism, drying device and powder processed
Device, wherein weighing device ponderable quantity weight of material are simultaneously sent to time interval controls device, for determining to cut interval time.
The automatic sample-making system in the embodiment of the present invention and its reduction device are described in detail above.Apply herein
Specific case is set forth to the principle and embodiment of the present invention, and the explanation of above example is only intended to help and understands
The core concept of the present invention, without departing from the principles of the present invention, some improvement and modification can be also carried out to the present invention, this
A little improvement and modification are also fallen within the scope of the present invention.
Claims (9)
- A kind of 1. reduction device, it is characterised in that：Including horizontally disposed cavity components (1), it is installed on the cavity components (1) In and the power part that rotates of the rotary shaft, flat board cutter (2) and the driving rotary shaft that are vertically arranged；The flat board cutting Device (2) is located in the cavity components (1), has space with the cavity components (1) upper surface and fixed with the rotary shaft Connection；The upper cover plate component (11) of the cavity components (1) has sample introduction chute component；The lower cover of the cavity components (1) Component (12), which has, abandons sample chute component (4) and the chute component (5) that keeps sample；The sample introduction chute component and described abandon sample chute group Part (4) is correspondingly arranged；There is fixation to scrape for cavity components (1) inside upper surface, close described chute component (5) region that keeps sample Sweep device (6)；There is the activity being fixedly connected with the rotary shaft to sweep device on the downside of the flat board cutter (2)；The activity is scraped The inner surface that device is swept with the lower cover board component (12) is bonded.
- 2. reduction device according to claim 1, it is characterised in that：Also have described in setting on the cavity components (1) Power part rotates the cutting interval controller (7) of interval time.
- 3. reduction device according to claim 1 or 2, it is characterised in that：The flat board cutter (2) is fixed by anchor ear In in the rotary shaft.
- 4. reduction device according to claim 3, it is characterised in that：The cavity components (1) also include at least two arcs Shape lateral plate component (13)；Between the upper cover plate component (11), the lower cover board component (12) and the arc side plate component (13) It is detachably connected.
- 5. reduction device according to claim 4, it is characterised in that：The activity sweeps device and the flat board cutter (2) it is fixedly connected；The height that the activity sweeps device is the gap of the flat board cutter (2) and the lower cover board component (12) Highly.
- 6. reduction device according to claim 5, it is characterised in that：Also include being installed on the cavity components (1) Blast cleaning agency (10).
- 7. reduction device according to claim 6, it is characterised in that：The lower cover board component (12) also has fixed otic placode (14)；There is the through hole for being used for fixing the reduction device on the fixed otic placode (14).
- 8. reduction device according to claim 1 or 2, it is characterised in that：The power part includes motor, installation Chain wheel driving mechanism (9) in the motor and the rotary shaft shaft end.
- 9. a kind of automatic sample-making system, including conveying device, weighing device, breaker, drying device and reducing mechanism；It is special Sign is：Also there is the reduction device as described in claim any one of 1-8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510713674.0A CN105203365B (en) | 2015-10-28 | 2015-10-28 | A kind of automatic sample-making system and its reduction device |
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| CN201510713674.0A CN105203365B (en) | 2015-10-28 | 2015-10-28 | A kind of automatic sample-making system and its reduction device |
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| CN105203365B true CN105203365B (en) | 2018-03-27 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106198149B (en) * | 2016-08-29 | 2019-03-08 | 长沙开元仪器股份有限公司 | A kind of contracting device |
| CN106226140A (en) * | 2016-08-29 | 2016-12-14 | 长沙开元仪器股份有限公司 | A kind of contracting device |
| CN106404445B (en) * | 2016-09-30 | 2023-07-07 | 湖南万通科技股份有限公司 | Material dividing device |
| CN107328627A (en) * | 2017-08-09 | 2017-11-07 | 力鸿智信（北京）科技有限公司 | It is a kind of to determine quality reduction device and method for robot sample-preparing system |
| CN107271244A (en) * | 2017-08-18 | 2017-10-20 | 长沙开元仪器股份有限公司 | A kind of quantitative reduction device |
| CN107796677B (en) * | 2017-10-16 | 2021-10-26 | 长沙开元仪器有限公司 | Rotary chute type splitter and coal sample preparation equipment |
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| AU2006201944A1 (en) * | 2005-05-04 | 2006-11-23 | Lyman, Geoffrey Dr | Variable Split Sample Divider |
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| CN2759588Y (en) * | 2005-01-10 | 2006-02-22 | 方成 | Seal breaking and cutting machine without adhibitting and blocking |
| AU2006201944A1 (en) * | 2005-05-04 | 2006-11-23 | Lyman, Geoffrey Dr | Variable Split Sample Divider |
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Effective date of registration: 20190527 Address after: 410100 Xingsha Industrial Base (Changlong Street), Changsha Economic and Technological Development Zone, Changsha City, Hunan Province, No. 1259, Liangtang East Road Patentee after: Kaiyuan Instrument Co., Ltd., Changsha Address before: 410100 No. 172 Kaiyuan Road, Changsha economic and Technological Development Zone, Hunan Patentee before: Changsha Kaiyuan Instruments Co., Ltd. |