CN203772685U - Granular preparation dust tester - Google Patents
Granular preparation dust tester Download PDFInfo
- Publication number
- CN203772685U CN203772685U CN201420165422.XU CN201420165422U CN203772685U CN 203772685 U CN203772685 U CN 203772685U CN 201420165422 U CN201420165422 U CN 201420165422U CN 203772685 U CN203772685 U CN 203772685U
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- China
- Prior art keywords
- granular formulations
- commissioning pipe
- funnel
- determination instrument
- instrument according
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 239000000428 dust Substances 0.000 title claims abstract description 43
- 238000009472 formulation Methods 0.000 claims description 28
- 239000000203 mixture Substances 0.000 claims description 28
- 239000002184 metal Substances 0.000 claims description 11
- 239000010935 stainless steel Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 239000004945 silicone rubber Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 12
- 239000000575 pesticide Substances 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 13
- 238000005259 measurement Methods 0.000 description 4
- 101000793686 Homo sapiens Azurocidin Proteins 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000003908 quality control method Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 208000033999 Device damage Diseases 0.000 description 1
- 206010016173 Fall Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 235000021050 feed intake Nutrition 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a granular preparation dust tester and belongs to the field of pesticides. The granular preparation dust tester comprises a sample collection box, a box body cover, a material feeding pipe, a filter, a flow meter and a vacuum pump, wherein a neck-free funnel is arranged at the upper end of the material feeding pipe; an interval supporting device is arranged between the neck-free funnel and the material feeding pipe; the lower opening of the neck-free funnel is located in the middle part of the material feeding pipe and is leveled with the upper opening of the material feeding pipe. When the granular preparation dust tester is used for testing granular preparation dust, a sample is poured into the neck-free funnel and then falls into the material feeding pipe along the neck-free funnel; with the neck-free funnel, the sample pouring amount and the sample pouring speed can be easily controlled; the lower opening of the neck-free funnel is located in the middle part of the material feeding pipe so that a condition that the sample slides off along the wall of the material feeding pipe is avoided and the sample can directly freely fall off from the middle part of the material feeding pipe, and furthermore, the accuracy of a testing result is ensured.
Description
Technical field
The utility model relates to pesticide field, refers to especially a kind of granular formulations dust determination instrument.
Background technology
At pesticide field, one of them important evaluation index of granular formulations is dust, this index is the Dust Capacity for restriction granular formulations, prevents disposing and dust may be discharged in air when dispenser, causes the injury to the producer and medication person and the index set.China not yet sets up relevant detection method at present, and abroad, the international agricultural chemicals cooperating analysis of the CIPAC(council) adopt the dust determination method of MT171 granular formulations, the method to have two kinds of gravimetric method and optical methods, wherein gravimetric method is referee method, and reference value is larger.
For gravimetric method dust determination method, in MT171, used the device shown in Fig. 1, this device comprises sample collection case 1 and is positioned at the casing cover cap 2 on sample collection case 1, has been wholely set commissioning pipe 3 on casing cover cap 2, feed intake for convenience, the upper port of commissioning pipe 3 is funnel-form; The side of sample collection case 1 is provided with circular open 4, on this circular open 4, be provided with the built-in absorbent cotton of filtrator 5(and support filter screen), filtrator 5 is by flexible pipe connection traffic meter 6 and vacuum pump (not shown) successively, and vacuum pump is for making the certain air velocity of the interior maintenance of sample collection case 1.
Corresponding to the device shown in Fig. 1, corresponding gravimetric method dust determination method is: take a certain amount of sample, in the test space, condition free falls in accordance with regulations, the dust discharging is carried by air stream, be collected on filtrator, weigh the dust on filtrator, compare with the sample taking, calculate the Dust Capacity of sample.
In above-mentioned gravimetric method dust determination method, at least there are the following problems: above-mentioned " rated condition " General Requirements sample is evenly poured in certain hour (60 seconds), normally hand-held beaker is directly poured in commissioning pipe at present, the bad control of speed of sample, and sample often slides along the tube wall of commissioning pipe, if the tube wall of commissioning pipe is smooth not, be difficult to ensure the accuracy of measurement result.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of speed of falling sample and is easy to control, and can guarantee the granular formulations dust determination instrument of measurement result accuracy.
For solving the problems of the technologies described above, the utility model provides technical scheme as follows:
A kind of granular formulations dust determination instrument, comprise sample collection case and be positioned at the casing cover cap on described sample collection case, on described casing cover cap, be wholely set commissioning pipe, the side of described sample collection case is provided with circular open, on described circular open, be provided with filtrator, in described filtrator, be provided with support filter screen, and described filtrator is connected with flowmeter and vacuum pump in turn by flexible pipe, wherein, the upper end of described commissioning pipe is provided with stemless funnel, between described stemless funnel and commissioning pipe, be provided with septal branch support arrangement, the lower port of described stemless funnel is positioned at described commissioning pipe middle part, and the lower port of described stemless funnel flushes with the upper port of described commissioning pipe.
Further, described septal branch support arrangement is the back-up block that is arranged on described stemless funnel outside surface, and described back-up block is at least two.
Further, described septal branch support arrangement comprises support ring and the feet that is positioned at described support ring bottom.
Further, the diameter of the lower port of described stemless funnel adapts with the diameter of granular formulations to be poured into, the light so that a certain amount of granular formulations freely falls at the appointed time.
Further, described stemless funnel is made up of glass.
Further, the upper port of described commissioning pipe is hinged with dust cap, between described dust cap and described commissioning pipe, is provided with snap close.
Further, described support filter screen comprises metal ring and is welded on the metallic sieve on described metal ring.
Further, described metal ring is two, and described metallic sieve is welded between described two metal rings.
Further, described vacuum pump top is provided with controller dial framework, and described flowmeter is arranged on described controller dial framework.
Further, described sample collection case is the square box that stainless steel is made, and between described sample collection case and described casing cover cap, with silicone rubber pad sealing, fixes with adjustable stainless steel snap close.
The utlity model has following beneficial effect:
Compared with prior art, the utility model has additional stemless funnel in the upper end of commissioning pipe, for not affecting the air velocity in sample collection case, between stemless funnel and commissioning pipe, be provided with septal branch support arrangement, and for ensureing the height of sample free-falling, the lower port of stemless funnel flushes with the upper port of commissioning pipe.In the time carrying out granular formulations dust determination, sample is poured in stemless funnel, sample falls into commissioning pipe along stemless funnel, due to the existence of stemless funnel, can be easy to the pouring volume of Quality control and pour speed into, and because the lower port of stemless funnel is positioned at commissioning pipe middle part, so the situation of having avoided sample to slide along the tube wall of commissioning pipe, sample is all directly from the free-falling of commissioning pipe middle part, thereby guaranteed the accuracy of measurement result.
Brief description of the drawings
Fig. 1 is the structural representation of prior art granular preparation dust determination instrument;
Fig. 2 is the side structure schematic diagram of sample collection case in Fig. 1;
Fig. 3 is the structural representation of granular formulations dust determination instrument of the present utility model;
Fig. 4 is the structural representation of a kind of embodiment of stemless funnel and septal branch support arrangement in Fig. 3;
Fig. 5 is the structural representation of the another kind of embodiment of stemless funnel and septal branch support arrangement in Fig. 3;
Fig. 6 is the structural representation that supports filter screen in Fig. 3.
Embodiment
For making the technical problems to be solved in the utility model, technical scheme and advantage clearer, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
The utility model provides a kind of granular formulations dust determination instrument, as shown in Figures 3 to 6, comprise sample collection case 31 and be positioned at the casing cover cap 37 on sample collection case, on casing cover cap 37, be wholely set commissioning pipe 32, the side of sample collection case 31 is provided with circular open (not shown), on circular open, be provided with filtrator (not shown), in filtrator, be provided with support filter screen, and filtrator is connected with flowmeter 33 and vacuum pump 34 in turn by flexible pipe, wherein, the upper end of commissioning pipe 32 is provided with stemless funnel 35, between stemless funnel 35 and commissioning pipe 32, be provided with septal branch support arrangement 36, the lower port of stemless funnel 35 is positioned at commissioning pipe 32 middle parts, and the lower port of stemless funnel 35 flushes with the upper port of commissioning pipe 32.
In the utility model, the upper end of commissioning pipe 32 has additional stemless funnel 35, for not affecting the air velocity in sample collection case 31, between stemless funnel 35 and commissioning pipe 32, be provided with septal branch support arrangement 36, and for ensureing the height of sample free-falling, the lower port of stemless funnel 35 flushes with the upper port of commissioning pipe 32.
In the time carrying out granular formulations dust determination, sample is poured in stemless funnel 35, sample falls into commissioning pipe 32 along stemless funnel 35, due to the existence of stemless funnel 35, can be easy to the pouring volume of Quality control and pour speed into, and because the lower port of stemless funnel 35 is positioned at commissioning pipe 32 middle parts, so the situation of having avoided sample to slide along the tube wall of commissioning pipe 32, sample is all directly from commissioning pipe 32 middle part free-fallings, thereby guaranteed the accuracy of measurement result.
In the utility model, those skilled in the art can be designed to various version by septal branch support arrangement 36 according to general knowledge, septal branch support arrangement 36 can be both integrative-structure with stemless funnel 35, also can be Split type structure, in the time that both are structure as a whole, as shown in Figure 4, septal branch support arrangement 36 is preferably arranged on the back-up block 361 of stemless funnel outside surface, back-up block is preferably at least two, back-up block 361 both can be supported on commissioning pipe 32 upper port inner sides, also can be supported on commissioning pipe 32 upper port edges; In the time that both are Split type structure, as shown in Figure 5, septal branch support arrangement 36 preferably includes support ring 362 and is positioned at the feet 363 of support ring 362 bottoms, same, feet 363 both can be supported on commissioning pipe 32 upper port inner sides, also can be supported on commissioning pipe 32 upper port edges.
At present, granular formulations is generally divided into two kinds of circular granular agent and bar shaped granules, for circular granular agent, the diameter of the lower port of the stemless funnel 35 in preferred the utility model adapts with the diameter of granular formulations to be poured into, the light (hourglass principle) so that a certain amount of granular formulations freely falls at the appointed time.Like this, for the circular granular agent of different-diameter, the stemless funnel 35 that can select lower port diameter to match, thereby can disposable sample to be poured into all be poured in stemless funnel 35, sample is (60 seconds) interior light that freely falls at the appointed time, pour speed into without control, convenient accurate.
In the utility model, stemless funnel 35 can adopt various smoothnesss better and the little material of Electrostatic Absorption is made, preferably adopt glass to make, because the existing good smoothness of glass, Electrostatic Absorption is little, and its transparency can person easy to use be observed the process of falling sample, thereby the speed of falling sample of observation.The material of septal branch support arrangement 36 is not limit, and those skilled in the art can select as required flexibly.
In the time that equipment placement is not used, can take off stemless funnel 35 and septal branch support arrangement 36 places separately, now, the upper port of commissioning pipe 32 is preferably hinged with dust cap (not shown), can prevent like this entering of dust, particularly, in the situation that ambient humidity is larger, can effectively prevent that airborne dust from entering and being adsorbed in commissioning pipe 32, thereby avoid the smoothness of commissioning pipe 32 tube walls to be affected.And, between dust cap and commissioning pipe 32, be preferably provided with snap close, to avoid dust cap surprisingly to be opened.
In prior art, the diameter of the support filter screen in General Requirements filtrator is 40mm, aperture is 75 μ m, but the filter screen of this size is all very soft, supporting role is poor, for improving the support performance that supports filter screen, the support filter screen in the utility model preferably adopts this structure: as shown in Figure 6, support filter screen and comprise that metal ring 61 and the metallic sieve 62(being welded on metal ring are preferably 75 μ m standard screen clothes).Consider the processing technology that supports filter screen, for convenience of processing and making, preferable alloy annulus 61 is two, and metallic sieve 62 is welded between two metal rings 61.
In addition, in prior art, the installation site of flowmeter 33 is not limited, but inventor finds in actual use, after equipment is finished using, need the flexible pipe disconnecting between vacuum pump 34 and sample collection case 31 to be connected, sample collection case 31 is cleaned, disconnect for convenience, reduce device damage, preferably, vacuum pump 34 tops are provided with controller dial framework 38, and flowmeter 33 is arranged on controller dial framework 38.
In the utility model, sample collection case 31 is the square box consistent with CIPAC MT171 given size, can adopt the various materials that meet the demands to make, be preferably stainless steel, with silicone rubber pad sealing, fixing with adjustable stainless steel snap close 39 between sample collection case 31 and casing cover cap 37.Like this can easy disassembly, and can reach and identical before sealing effectiveness.
The above is preferred implementation of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of principle described in the utility model; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1. a granular formulations dust determination instrument, comprise sample collection case and be positioned at the casing cover cap on described sample collection case, on described casing cover cap, be wholely set commissioning pipe, the side of described sample collection case is provided with circular open, on described circular open, be provided with filtrator, in described filtrator, be provided with support filter screen, and described filtrator is connected with flowmeter and vacuum pump in turn by flexible pipe, it is characterized in that, the upper end of described commissioning pipe is provided with stemless funnel, between described stemless funnel and commissioning pipe, be provided with septal branch support arrangement, the lower port of described stemless funnel is positioned at described commissioning pipe middle part, and the lower port of described stemless funnel flushes with the upper port of described commissioning pipe.
2. granular formulations dust determination instrument according to claim 1, is characterized in that, described septal branch support arrangement is the back-up block that is arranged on described stemless funnel outside surface, and described back-up block is at least two.
3. granular formulations dust determination instrument according to claim 1, is characterized in that, described septal branch support arrangement comprises support ring and is positioned at the feet of described support ring bottom.
4. granular formulations dust determination instrument according to claim 1, it is characterized in that, the diameter of the lower port of described stemless funnel adapts with the diameter of granular formulations to be poured into, the light so that a certain amount of granular formulations freely falls at the appointed time.
5. granular formulations dust determination instrument according to claim 1, is characterized in that, described stemless funnel is made up of glass.
6. granular formulations dust determination instrument according to claim 1, is characterized in that, the upper port of described commissioning pipe is hinged with dust cap, between described dust cap and described commissioning pipe, is provided with snap close.
7. granular formulations dust determination instrument according to claim 1, is characterized in that, described support filter screen comprises metal ring and is welded on the metallic sieve on described metal ring.
8. granular formulations dust determination instrument according to claim 7, is characterized in that, described metal ring is two, and described metallic sieve is welded between described two metal rings.
9. granular formulations dust determination instrument according to claim 1, is characterized in that, described vacuum pump top is provided with controller dial framework, and described flowmeter is arranged on described controller dial framework.
10. granular formulations dust determination instrument according to claim 1, it is characterized in that, described sample collection case is the square box that stainless steel is made, and between described sample collection case and described casing cover cap, with silicone rubber pad sealing, fixes with adjustable stainless steel snap close.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420165422.XU CN203772685U (en) | 2014-04-04 | 2014-04-04 | Granular preparation dust tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420165422.XU CN203772685U (en) | 2014-04-04 | 2014-04-04 | Granular preparation dust tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203772685U true CN203772685U (en) | 2014-08-13 |
Family
ID=51289863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420165422.XU Expired - Lifetime CN203772685U (en) | 2014-04-04 | 2014-04-04 | Granular preparation dust tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203772685U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501459A (en) * | 2016-11-16 | 2017-03-15 | 山东嘉华保健品股份有限公司 | A kind of powdery product flies upward the detection method of degree |
-
2014
- 2014-04-04 CN CN201420165422.XU patent/CN203772685U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501459A (en) * | 2016-11-16 | 2017-03-15 | 山东嘉华保健品股份有限公司 | A kind of powdery product flies upward the detection method of degree |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140813 |