CN212206975U - Sample conveying device suitable for measuring tobacco moisture by oven method - Google Patents
Sample conveying device suitable for measuring tobacco moisture by oven method Download PDFInfo
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- CN212206975U CN212206975U CN202020807450.2U CN202020807450U CN212206975U CN 212206975 U CN212206975 U CN 212206975U CN 202020807450 U CN202020807450 U CN 202020807450U CN 212206975 U CN212206975 U CN 212206975U
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Abstract
The utility model provides a send appearance device suitable for oven method measurement tobacco moisture, include the cuboid basket that constitutes by the stainless steel net long, wide, the height is 33.2cm 16.6cm 0.5cm, two diameters are offered on upper strata basket symmetry and are used for placing the circular hole of sample box for 6.5cm, the centre-to-centre spacing between two holes is 16.6cm, the distance that the hole centre-to-centre spacing is adjacent blue limit is 8.3cm, this device is designed to a set of moisture sample (parallel test), the sample box can be freely put into to circular hole internal diameter assurance, the fixed of sample box has been guaranteed, and effectively guarantee that sample box places density and reach standard requirement. In the actual measurement process, two or more sets of the device can be used simultaneously according to the size of the oven. The utility model discloses guaranteed the degree of consistency that the sample box placed, reduced sample and environment contact time, improved the accuracy and the comparability of testing result, reduced the parallel determination error.
Description
Technical Field
The utility model relates to a measure send appearance device of tobacco moisture, specifically be a send appearance device suitable for daily measurement tobacco moisture (oven method).
Background
Tobacco moisture is an important technical indicator of tobacco and tobacco products. At present, methods for measuring moisture in the tobacco industry include an oven method, a gas chromatography method, a Karl Fischer method and the like, but the oven method is always a basic method and a classical method, and other methods are compared with the oven method.
YC/T31 regulation of preparing tobacco and tobacco product samples and measuring moisture in oven method commonly used in tobacco industry, the sample box is uniformly arranged in the middle layer of the oven when measuring, and the density is not more than 1 per 275cm2At present, when the condition is executed in an industrial laboratory, the uniformity of the sample box cannot be ensured by a measuring and manual placing method, and the efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a purpose is exactly based on a simple structure of above-mentioned reason special design, convenient and practical, low cost and can used repeatedly send a kind device, utilizes the device to determine tobacco moisture at the oven method, can make sample box evenly distributed in the oven, and can once send a kind, has shortened sample exposure time, makes the testing result more accurate.
The purpose of the utility model is realized through the following technical scheme:
the utility model provides a send appearance device suitable for oven method measurement tobacco moisture, includes and constitutes the cuboid basket that is 33.2cm x 16.6cm x 0.5cm by stainless steel, and two diameters are the circular hole that is used for placing the sample box that is 6.5cm on upper strata basket, and the centre-to-centre spacing between two holes is 16.6cm, and the distance that each hole centre point apart from adjacent basket limit is 8.3 cm.
The diameter of the sample box is less than phi 6.5 cm.
The sample presentation apparatus is designed for parallel testing of a set of moisture samples.
The utility model discloses a to a set of moisture sample and design (parallel test), the sample box can be freely put into to circular hole internal diameter assurance sample box, the sample box's is guaranteed to upper and lower two-layer stainless steel net 0.5 cm's distance fixed, two hole distances and hole and frame distance can effectively guarantee that the sample box places density and reach the standard requirement, improved the device's stability and maneuverability, the in-process of actual determination, can be according to the oven size, use this device of two sets of or more group simultaneously.
The utility model discloses an operation process is: and (3) sequentially placing the uncapped sample boxes into sample holes of the sample feeding device, then placing the sample feeding device into a middle layer of an oven (only the middle layer can be placed in YC/T31) and measuring the moisture of the sample.
The beneficial effects of the utility model are that guaranteed the degree of consistency that the sample box placed, reduced sample and environment contact time, improved the accuracy and the comparability of testing result, reduced the parallel determination error.
Note description: according to the requirements of YC/T31, the sample box is placed at a density of no more than 275cm2I.e. 16.6cm x 16.6cm per sample box (8.3 cm distance between the centre of each sample box). Each measurement is to be tested in parallel, so the device can be used for placing 2 moisture boxes at a time.
YC/T31 specifies that the moisture cell size should not be larger than 6.5 cm.
Drawings
Fig. 1 is a schematic size diagram of the upper stainless steel mesh of the present invention.
FIG. 2 is an axonometric view of the present utility model。
Detailed Description
The present invention is further described below with reference to the accompanying drawings (examples):
as shown in fig. 1-2: the utility model provides a send appearance device suitable for oven method measurement tobacco moisture, includes to constitute by the stainless steel net that the length, width, height are 33.2cm 16.6cm 0.5 cm's cuboid basket 1, and the symmetry is seted up two diameters and is used for placing the circular hole 2 of sample box for 6.5cm on the basket of upper strata, and the centre-to-centre spacing between two holes is 16.6cm, and the distance that each hole centre point apart from adjacent basket limit is 8.3cm, the sample box diameter is less than phi 6.5 cm.
Example (b):
taking Henan Schchang B2F, C3F and X2F tobacco leaves, and taking ten leaves in each grade.
Immediately after grinding and comminution according to YC/T31 specifications, the samples are filled into numbered sample cartridges of known weight (which are to be measured in parallel) and weighed. The sample box is placed into the hole of the sample feeding device after the cover of the sample box is removed, the sample box and the sample feeding device are rapidly placed into the middle layer of the oven, the sample box and the sample feeding device are dried for 2 hours at the temperature of 100 ℃, the sample box is taken out after being covered, and the sample box is weighed after being cooled to the room temperature by the dryer. The results are shown in Table 1:
as can be seen in Table 1, the error of the parallel test for each sample is within 0.03%, which is much less than 0.10% specified in YC/T31.
Three examiners performed measurements on the same sample, and the results are shown in Table 2.
As can be seen from Table 2, the comparison test results of different persons have small difference, and the measurement requirements can be completely met.
Choose same sample for use, adopt respectively manual sample presentation method with the utility model discloses sample presentation method, every group test all adopts parallel determination, surveys 5 times altogether. The results are shown in Table 3.
It can be seen in table 3, adopt the utility model discloses afterwards, the standard deviation of moisture assay result and the range between the parallel determination result all reduce by a wide margin, and the accuracy of assay result obviously improves.
Claims (2)
1. The utility model provides a send appearance device suitable for oven method measures tobacco moisture which characterized in that: the sample box comprises a cuboid basket which is formed by stainless steel nets and has the length, width and height of 33.2cm multiplied by 16.6cm multiplied by 0.5cm, two circular holes which are 6.5cm in diameter and used for placing the sample box are symmetrically arranged on the upper basket, the center distance between the two holes is 16.6cm, and the distance between the center point of each hole and the adjacent basket edge is 8.3 cm.
2. The sample transport device suitable for measuring the moisture of the tobacco by the oven method according to claim 1, is characterized in that: the diameter of the sample box is less than phi 6.5 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020807450.2U CN212206975U (en) | 2020-05-15 | 2020-05-15 | Sample conveying device suitable for measuring tobacco moisture by oven method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020807450.2U CN212206975U (en) | 2020-05-15 | 2020-05-15 | Sample conveying device suitable for measuring tobacco moisture by oven method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212206975U true CN212206975U (en) | 2020-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020807450.2U Active CN212206975U (en) | 2020-05-15 | 2020-05-15 | Sample conveying device suitable for measuring tobacco moisture by oven method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212206975U (en) |
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2020
- 2020-05-15 CN CN202020807450.2U patent/CN212206975U/en active Active
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