CN109677949A - A kind of feeding-distribution device and distribution method for sample-preparing system - Google Patents
A kind of feeding-distribution device and distribution method for sample-preparing system Download PDFInfo
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- CN109677949A CN109677949A CN201910101108.2A CN201910101108A CN109677949A CN 109677949 A CN109677949 A CN 109677949A CN 201910101108 A CN201910101108 A CN 201910101108A CN 109677949 A CN109677949 A CN 109677949A
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- plate washer
- feeding
- preparing system
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
- B65G65/32—Filling devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
- B65G65/34—Emptying devices
- B65G65/40—Devices for emptying otherwise than from the top
-
- 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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- Mechanical Engineering (AREA)
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of feeding-distribution devices and distribution method for sample-preparing system, and device includes material-falling hopper, and the material-falling hopper has at least two sub-material channel；Blanking plate washer is provided in the material-falling hopper, the blanking plate washer has at least two location status, the size that the feed inlet in the sub-material channel can be changed by changing the blanking plate washer location status.Simple with structure, control flexibly, can high-precision the advantages that being allocated to sample.
Description
Technical field
The present invention relates to automatic sample field more particularly to a kind of feeding-distribution devices and distribution method for sample-preparing system.
Background technique
Traditional artificial sample preparation large labor intensity, sample preparation bad environments, sample representativeness are easy to be influenced by human factor.
Automatic sample effectively mitigates labor intensity of workers, promotes the working environment of worker, while guaranteeing in entire sample making course without artificial
Factor influences, and automatic sample replaces traditional artificial sample preparation to be the development trend in sample preparation field.
It include two separating device of sample in existing automatic sample equipment.As shown in Figure 1, its working principle is that, belt is taken
Band coal stream is swept device with the operation of speed V1 speed vertical strap, is swept device and take coal to two on belt with V2 speed level run
Point device, coal stream by two/after into sample bottle A and sample bottle B, be packaged.Device is swept during taking coal, coal is met in Fig. 1
The side side a can with operation coal stream 3 occur extrusion and collision cause the coal stream thickness in certain area to increase, and these spillings coal stream with
Belt operation can be swept device rapidly and taken away, due to sweeping device speed quickly, most coal charge be all proximate to the side a taken into
Come, causes coal charge sectional view shown in figure A-A, it is more close to the side a coal, it is few close to the side b coal.Coal sample by two/after, sample bottle A coal sample
More, sample bottle B coal sample is few.Experimental data also indicates that, as the belt speed of service increases, coal sample weight differential will be increasing.
Due to the presence of such case, the precision of analysis of coal sample will affect, therefore, it is necessary to further be improved.
Summary of the invention
The technical problem to be solved in the present invention is that, for technical problem of the existing technology, the present invention provides one
Kind of structure is simple, and control flexibly, can the high-precision feeding-distribution device for sample-preparing system being allocated to sample and sub-material side
Method.
In order to solve the above technical problems, technical solution proposed by the present invention are as follows: a kind of feeding-distribution device for sample-preparing system,
Including material-falling hopper, the material-falling hopper has at least two sub-material channel；
Blanking plate washer is provided in the material-falling hopper, the blanking plate washer has at least two location status, described in changing
The size of the feed inlet in the sub-material channel can be changed in blanking plate washer location status.
Further, at least two groups limited block is provided on the material-falling hopper inner sidewall, the sub-material plate washer passes through described
Limited block is fixed in the material-falling hopper；
Or:
At least two groups position card slot is provided on the material-falling hopper inner sidewall, the sub-material plate washer is arranged in the card slot.
Further, the sub-material plate washer is mounted on the material-falling hopper by axis, and can be rotated around the axis.
It further, further include driver, the driver and the axis connection drive the sub-material shelves by the axis
Plate rotation.
Further, sliding slot is additionally provided on the sub-material plate washer；It further include slide bar driving assembly；The slide bar driving group
The interconnecting piece of part is arranged in the sliding slot；The interconnecting piece can be moved along the sliding slot；It is driven by the slide bar driving assembly
Move the sub-material plate washer rotation.
Further, the slide bar driving assembly is mounted on the side wall of the material-falling hopper；The slide bar driving assembly is
Cylinder driving assembly or lead screw driving assembly.
Further, fastening nut is additionally provided on the axis, the fastening nut exists for fixing the sub-material plate washer
Rotational angle.
A kind of distribution method for sample-preparing system adjusts in the as above any one feeding-distribution device according to default rule
The location status of sub-material plate washer passes through the feeding-distribution device in blanking to change the size of the feed inlet in each sub-material channel
Sample is received, and is exported to sample reception container.
Further, the default rule includes: the position of the sub-material plate washer according to preset sub-material target adjustment
State, so that the sample ratio in blanking time-division to each sub-material channel meets preset sub-material target every time.
Further, the default rule includes: the location status for adjusting the sub-material plate washer, so that only one point
Expect that the feed inlet in channel is opened, and the opening times by controlling each feed inlet in multiple blanking operation, realizes to meet and preset
Sub-material target sample distribution.
Further, the default rule includes: to detect the sample reception container in each sub-material channel before each blanking
In sample quality, according to it is each reception container in sample quality ratio and preset sub-material target ratio deviation, adjust
The location status of the sub-material plate washer.
Compared with the prior art, the advantages of the present invention are as follows:
1, feeding-distribution device structure of the invention is simple, and processing cost is low, convenient to carry out, by adjusting the position shape of sub-material plate washer
State, it can sample is distributed to each sub-material channel as required, can accurately realize the distribution to sample, and can be as needed
Allocation proportion is adjusted, flexibility is good.
2, feeding-distribution device of the invention also has driving device, by driving device come the position shape automatically to sub-material plate washer
State is adjusted, and does not need manual intervention, can reduce labor intensity.
3, the sub-material plate washer of feeding-distribution device of the invention can realize the adjustment of free position, it can realize to item according to
Arbitrary proportion is allocated, and sub-material is more accurate.
Detailed description of the invention
Fig. 1 is sample-preparing system structural schematic diagram in the prior art.
Fig. 2 is doffer schematic diagram in the prior art.
Fig. 3 is the feeding-distribution device structural schematic diagram one of the specific embodiment of the invention one.
Fig. 4 cuts open for the feeding-distribution device structure division of the specific embodiment of the invention one shows schematic diagram.
Fig. 5 is the feeding-distribution device structural schematic diagram two of the specific embodiment of the invention one.
Fig. 6 is the feeding-distribution device structural schematic diagram of the specific embodiment of the invention two.
Fig. 7 is the feeding-distribution device structural schematic diagram of the specific embodiment of the invention three.
Fig. 8 is the sub-material barrier structure schematic diagram of the specific embodiment of the invention three.
Fig. 9 is the feeding-distribution device structural schematic diagram of the specific embodiment of the invention four.
Marginal data: 1, device is swept；2, belt；3, coal sample；4, two separating device；5, sample bottle A；6, sample bottle B；7, sub-material shelves
Plate；
101, material-falling hopper；102, demarcation plate；103, sub-material channel；104, sub-material plate washer；105, limited block；106, card slot；107,
Axis；108, driver；109, slide bar；110, sliding slot；111, fastening nut.
Specific embodiment
Below in conjunction with Figure of description and specific preferred embodiment, the invention will be further described, but not therefore and
It limits the scope of the invention.
Embodiment one: as shown in figure 3, the feeding-distribution device for sample-preparing system of the present embodiment, including material-falling hopper 101, it falls
Hopper 101 has at least two sub-material channel 103；Blanking plate washer is provided in material-falling hopper 101, blanking plate washer has at least two
Location status, the size that the feed inlet in sub-material channel 103 can be changed by changing blanking plate washer location status.In the present embodiment,
Material-falling hopper 101 is divided at least two sub-material channel 103 by demarcation plate 102, it as shown in Figure 4, will by 2 pieces of demarcation plates 102
The lower part of material-falling hopper 101 separates, and can separate respectively from 2 sub-material channels 103 into the sample in hopper.It is of course also possible to adopt
Sub-material channel 103 otherwise is formed, is not intended to limit the concrete form in sub-material channel 103 in this application.Sub-material channel
103 quantity also can according to need setting.When if any 3 sub-material channels 103,3 sub-material channels 103 can be such as mode in Fig. 4
It is extended, 3 sub-material channels 103 form a line, and 2 sub-material plate washers 104 can correspondingly be arranged, and so on.
In the present embodiment, it is provided at least two groups limited block 105 on 101 inner sidewall of material-falling hopper, sub-material plate washer 104 passes through
Limited block 105 is fixed in material-falling hopper 101.As shown in Figure 3 and Figure 4, including three groups of limited blocks 105, every group of limited block 105
It is divided into two column, is located on two opposite faces of 101 inner sidewall of material-falling hopper, each column includes more than one limited block 105 again.
It is provided with slot on the side wall of sub-material plate washer 104, sub-material plate washer 104 will be inserted into material-falling hopper 101 in 105 card entry slot of limited block, i.e.,
Complete the installation of sub-material plate washer 104.It is, of course, also possible to be installed using other way, such as can be on sub-material plate washer 104
Limited block 105 when installing sub-material plate washer 104, is caught in that limit in notch can by corresponding setting notch corresponding with limited block 105.
It in the present embodiment, can also be in the following way: as shown in figure 5, being provided at least on 101 inner sidewall of material-falling hopper
Two groups of position card slots 106, sub-material plate washer 104 are arranged in card slot 106.The set-up mode of card slot 106 and above-mentioned limited block 105
Set-up mode is essentially identical.
In the present embodiment, by setting limited block 105 or card slot 106, several samples point can be set for material-falling hopper 101
With ratio, pass through the location status of artificial change sub-material plate washer 104, it can realize material-falling hopper 101 according to a certain percentage into
Row sub-material.
The distribution method for sample-preparing system of the present embodiment adjusts as above any one feeding-distribution device according to default rule
The location status of middle sub-material plate washer 104 passes through sub-material in blanking to change the size of the feed inlet in each sub-material channel 103
Device receives sample, and exports to sample reception container.Default rule includes: according to preset sub-material target adjustment sub-material shelves
The location status of plate 104, so that the sample ratio in blanking time-division to each sub-material channel 103 meets preset sub-material target every time.
Preset sub-material target is determined by limited block 105 or card slot 106.
Embodiment two:
As shown in figure 3, the feeding-distribution device for sample-preparing system of the present embodiment, including material-falling hopper 101, material-falling hopper 101 have extremely
Few 2 sub-material channels 103；Blanking plate washer is provided in material-falling hopper 101, blanking plate washer has at least two location status, passes through
Changing blanking plate washer location status can be changed the size of feed inlet in sub-material channel 103.In the present embodiment, pass through demarcation plate 102
Material-falling hopper 101 is divided at least two sub-material channel 103, it as shown in Figure 4, will be under material-falling hopper 101 by 2 pieces of demarcation plates 102
Portion separates, and can separate respectively from 2 sub-material channels 103 into the sample in hopper.It is of course also possible to use other way carrys out shape
At sub-material channel 103, it is not intended to limit the concrete form in sub-material channel 103 in this application.The quantity in sub-material channel 103 can also be with
It is set as needed.When if any 3 sub-material channels 103,3 sub-material channels 103 can as in Fig. 4 mode be extended, 3 sub-materials
Channel 103 forms a line, and 2 sub-material plate washers 104 can correspondingly be arranged, and so on.
In the present embodiment, as shown in fig. 6, sub-material plate washer 104 is mounted on material-falling hopper 101 by axis 107, and can be around axis
107 rotations.It further include driver 108, driver 108 is connect with axis 107, drives sub-material plate washer 104 to rotate by axis 107.It drives
Dynamic device 108 can be the driving devices such as stepper motor.It can be between driver 108 and axis 107 and be directly connected to drive, it can also be with
By intermediate gear, the modes such as connecting rod carry out transmission rear-drive and move sub-material plate washer 104 around the rotation of axis 107.
In the present embodiment, the position of sub-material plate washer 104 is unlike in embodiment one, by limited block 105 or card slot 106
Constraint, but can stop at an arbitrary position.In Fig. 6, when sub-material plate washer 104 goes to maximum position to the left, sub-material plate washer 104
Complete shelves live the feed inlet in left side sub-material channel 103, and the sample can all enter the sub-material channel 103 on right side；When sub-material shelves
When plate 104 goes to the right maximum position, the complete shelves of sub-material plate washer 104 live the feed inlet in right side sub-material channel 103, and the sample is all
The sub-material channel 103 in left side can be entered；And sub-material plate washer 104 between above-mentioned two positions when, then to sample according to certain ratio
Example is allocated.Namely the sample distribution of 2 103 arbitrary proportions of sub-material channel in Fig. 6 may be implemented in the present embodiment.
Certainly, it should be noted that in the present embodiment, can by reduce sub-material plate washer 104 height so that
When sub-material plate washer 104 goes to maximum position to the right, can not completely shelves live right side sub-material channel 103 feed inlet, pass through
This mode, minimum allocation ratio when sub-material may be implemented are not zero.
The distribution method for sample-preparing system of the present embodiment adjusts as above any one feeding-distribution device according to default rule
The location status of middle sub-material plate washer 104 passes through sub-material in blanking to change the size of the feed inlet in each sub-material channel 103
Device receives sample, and exports to sample reception container.
In the present embodiment, default rule can be the same as example 1, i.e., according to preset sub-material target adjustment point
The location status of plate washer 104 is expected, so that the sample ratio in blanking time-division to each sub-material channel 103 meets preset sub-material mesh every time
Mark.Only in the present embodiment, it does not need manually to be adjusted, but is adjusted by controlling driver 108.
It in the present embodiment, can also be using other default rules, comprising: the position shape of adjustment sub-material plate washer 104
State, so that the feed inlet in only one sub-material channel 103 is opened, and by controlling opening for each feed inlet in multiple blanking operation
Number is opened, realizes the sample distribution for meeting preset sub-material target.It is with the feeding-distribution device in Fig. 6 with 2 sub-material channels 103
Example, when needing mean allocation sample.If sweeping device when sub-material needs 60 times from sample is swept under belt to feeding-distribution device, by dividing
Material device is bisected into two parts.At this point, elder generation lives left side sub-material channel for 103 grades, sweeps device and first sweep 30 times, this 30 times sample is complete
Portion is separated from right side sub-material channel 103, then 103 grades of right side sub-material channel is lived, and is swept device and is swept again 30 times, this 30 times sample
It all separates from left side sub-material channel 103, sample is divided equally to realize.Further, each sub-material channel 103 is successively opened
It opens, i.e., left side sub-material channel 103 receives the sample once swept, and then right side sub-material channel 103 receives a sample again, so
Repeatedly, the distribution of sample is completed.By this preferred mode, enable to the distribution of sample average, error is smaller.
In the present embodiment, default rule can also be in the following way: before each blanking, detecting each sub-material channel
Sample quality in 103 sample reception container, according to the ratio and preset sub-material target of sample quality in each reception container
Ratio deviation, adjust sub-material plate washer 104 location status.I.e. in the assigning process of sample, each sub-material is detected in real time
The quality for the sample that channel 103 separates, and ratio is calculated, the position of sub-material plate washer 104 is adjusted, according to the ratio then with dynamic
The distribution of the adjustment sample of state, so that the distribution of sample is more in line with distribution and requires.This mode, realization that can be more flexible are appointed
The sample of meaning ratio distributes.
Embodiment three:
The feeding-distribution device for sample-preparing system and embodiment two of the present embodiment are essentially identical, the difference is that sub-material plate washer
104 driving method is different.
As shown in fig. 7, the feeding-distribution device for sample-preparing system of the present embodiment, including material-falling hopper 101, material-falling hopper 101 have
There is at least two sub-material channel 103；Blanking plate washer is provided in material-falling hopper 101, blanking plate washer has at least two location status,
The size that the feed inlet in sub-material channel 103 can be changed by changing blanking plate washer location status.In the present embodiment, pass through demarcation plate
Material-falling hopper 101 is divided at least two sub-material channel 103 by 102, as shown in Figure 4, by 2 pieces of demarcation plates 102 by material-falling hopper 101
Lower part separate, can be separated respectively from 2 sub-material channels 103 into the sample in hopper.It is of course also possible to use other way
Sub-material channel 103 is formed, is not intended to limit the concrete form in sub-material channel 103 in this application.The quantity in sub-material channel 103
It can according to need setting.When if any 3 sub-material channels 103,3 sub-material channels 103 can as in Fig. 4 mode be extended, 3
Sub-material channel 103 forms a line, and 2 sub-material plate washers 104 can correspondingly be arranged, and so on.
In the present embodiment, as shown in Figure 7 and Figure 8, sliding slot 110 is additionally provided on sub-material plate washer 104；It further include slide bar
109 driving assemblies；The interconnecting piece of 109 driving assembly of slide bar is arranged in sliding slot 110；Interconnecting piece can 110 movement along the chute；Pass through
109 driving assembly of slide bar drives sub-material plate washer 104 to rotate.Slide bar 109 moves horizontally, and the interconnecting piece with moving slide-bar 109 is in cunning
It is moved in slot 110, while sub-material plate washer 104 is rotated around axis 107.
In the present embodiment, 109 driving assembly of slide bar is mounted on the side wall of material-falling hopper 101；109 driving assembly of slide bar is
Cylinder driving assembly or lead screw driving assembly.
The distribution method for sample-preparing system of the present embodiment is identical as embodiment two.
Example IV:
The feeding-distribution device for sample-preparing system and embodiment two of the present embodiment are essentially identical, the difference is that sub-material plate washer
104 driving method is different.In the present embodiment, as shown in figure 9, not having driver 108 to drive sub-material plate washer 104 to revolve
Turn, but needs to adjust the position of sub-material plate washer 104 by manually, meanwhile, in order to fix the position of sub-material plate washer 104,
It is provided with screw thread on axis 107, while being provided with a fastening nut 111 on axis 107, by tightening fastening nut 111, thus
The position of fixed sub-material plate washer 104.
The distribution method for sample-preparing system of the present embodiment is basically the same as the first embodiment.Being except difference can be real
The sample distribution of existing arbitrary proportion, no longer by limited block 105 or the position constraint of card slot 106.
Above-mentioned only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form.Although of the invention
It has been disclosed in a preferred embodiment above, however, it is not intended to limit the invention.Therefore, all without departing from technical solution of the present invention
Content, technical spirit any simple modifications, equivalents, and modifications made to the above embodiment, should all fall according to the present invention
In the range of technical solution of the present invention protection.
Claims (11)
1. a kind of feeding-distribution device for sample-preparing system, it is characterised in that: including material-falling hopper (101), material-falling hopper (101) tool
There is at least two sub-material channel (103)；
Blanking plate washer is provided in the material-falling hopper (101), the blanking plate washer has at least two location status, passes through change
The size of the feed inlet of the sub-material channel (103) can be changed in the blanking plate washer location status.
2. the feeding-distribution device according to claim 1 for sample-preparing system, it is characterised in that: in the material-falling hopper (101)
It is provided on side wall at least two groups limited block (105), the sub-material plate washer (104) is fixedly installed by the limited block (105)
In the material-falling hopper (101)；
Or:
It is provided at least two groups card slot (106) on material-falling hopper (101) inner sidewall, the sub-material plate washer (104) is arranged in institute
It states in card slot (106).
3. the feeding-distribution device according to claim 1 for sample-preparing system, it is characterised in that: the sub-material plate washer (104)
It is mounted on the material-falling hopper (101), and can be rotated around the axis (107) by axis (107).
4. the feeding-distribution device according to claim 3 for sample-preparing system, it is characterised in that: it further include driver (108),
The driver (108) connect with the axis (107), drives the sub-material plate washer (104) to rotate by the axis (107).
5. the feeding-distribution device according to claim 3 for sample-preparing system, it is characterised in that: the sub-material plate washer (104)
On be additionally provided with sliding slot (110)；It further include slide bar (109) driving assembly；The interconnecting piece of slide bar (109) driving assembly is arranged
In the sliding slot (110)；The interconnecting piece can be mobile along the sliding slot (110)；It is driven by the slide bar (109) driving assembly
Move sub-material plate washer (104) rotation.
6. the feeding-distribution device according to claim 5 for sample-preparing system, it is characterised in that: slide bar (109) driving
Component is mounted on the side wall of the material-falling hopper (101)；Slide bar (109) driving assembly is that cylinder driving assembly or lead screw drive
Dynamic component.
7. the feeding-distribution device according to claim 3 for sample-preparing system, it is characterised in that: also set on the axis (107)
It is equipped with fastening nut (111), the fastening nut (111) is for fixing the sub-material plate washer (104) in rotational angle.
8. a kind of distribution method for sample-preparing system, it is characterised in that: according to default rule adjustment such as claim 1 to 7
The location status of sub-material plate washer (104) in any one feeding-distribution device, thus change the feed inlet of each sub-material channel (103)
Size receives sample by the feeding-distribution device in blanking, and exports to sample reception container.
9. the distribution method according to claim 8 for sample-preparing system, it is characterised in that: the default rule packet
Include: according to the location status of sub-material plate washer (104) described in preset sub-material target adjustment so that every time the blanking time-division to each sub-material
The sample ratio in channel (103) meets preset sub-material target.
10. the distribution method according to claim 8 for sample-preparing system, it is characterised in that: the default rule packet
It includes: adjusting the location status of the sub-material plate washer (104), so that the feed inlet in only one sub-material channel (103) is opened, and lead to
The opening times for controlling each feed inlet in multiple blanking operation are crossed, realize the sample distribution for meeting preset sub-material target.
11. the distribution method according to claim 8 for sample-preparing system, it is characterised in that: the default rule packet
It includes: before each blanking, the sample quality in the sample reception container of each sub-material channel (103) is detected, according to each reception container
The deviation of the ratio of the ratio of middle sample quality and preset sub-material target adjusts the location status of the sub-material plate washer (104).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910101108.2A CN109677949A (en) | 2019-01-31 | 2019-01-31 | A kind of feeding-distribution device and distribution method for sample-preparing system |
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| CN201910101108.2A CN109677949A (en) | 2019-01-31 | 2019-01-31 | A kind of feeding-distribution device and distribution method for sample-preparing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113665954A (en) * | 2021-08-18 | 2021-11-19 | 武汉理工大学 | Categorised mechanism of collecting |
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| CN204642887U (en) * | 2015-03-24 | 2015-09-16 | 昆山德友机械设备有限公司 | A kind of diversion mechanism of valve holder |
| CN108891790A (en) * | 2018-08-15 | 2018-11-27 | 铜陵有色金属集团股份有限公司金冠铜业分公司 | Sub-material hopper |
| CN209973743U (en) * | 2019-01-31 | 2020-01-21 | 湖南三德科技股份有限公司 | Material distributing device for sample preparation system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113665954A (en) * | 2021-08-18 | 2021-11-19 | 武汉理工大学 | Categorised mechanism of collecting |
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