A pretreatment method for olfactory detection of wax particles

Abstract

The object of the present invention is to provide a pretreatment method for olfactory detection of granular wax, comprising the steps of: obtaining property attribute data of the granular wax to be detected; the property attribute data include the melting point of the granular wax to be detected and the solidification penetration after melting; determining the corresponding suitable ambient temperature value and suitable pressure value according to the property attribute data of the granular wax to be detected; pressurizing the granular wax to be detected with the suitable pressure value at a suitable ambient temperature to generate a block of wax to be detected; slicing the block of wax to be detected to generate thin slices of wax to be detected. The block of wax to be detected obtained by the present invention is a whole, which is more suitable for slicing operations. Therefore, by cutting the block of wax to be detected into thin slices, a thin slice of wax to be detected with uniform thickness and shape can be obtained, thereby fully releasing the odor-causing substances of the wax to be detected and improving the stability of the odor release of the wax to be detected.

Description

Technical Field

[0001] The invention relates to the field of petroleum product detection, and in particular to a pretreatment method for odor detection of particle wax. Background Art

[0002] The terminal market of paraffin wax is developing rapidly, and has gradually developed from simple match and candle production to adhesives, tire antioxidants, food packaging, cosmetics, hot melt adhesives, and precision casting. With the widespread application of paraffin wax products, increasingly stringent environmental protection requirements, and increasing attention to production safety, non-toxic and odorless properties are becoming increasingly important.

[0003] At present, the standard method for odor detection of petroleum wax products in my country is SH / T 0414-2004 "Petroleum Wax Odor Test Method", while the international standard ASTM D1321 is mainly used. The main technical contents of my country's industry standard SH / T 0414 and the American Society for Testing and Materials standard ASTM D1321 are similar. They use numerical grades to evaluate the intensity of odor, replacing descriptive terms such as stronger and weaker, to provide a benchmark for the consistency of petroleum wax odor intensity between laboratories.

[0004] In the prior art, when the odor level is evaluated by performing odor detection on granular wax, a pretreatment process of chopping is included, that is, the odor release of the granular wax is enhanced by chopping the granular wax to be detected, so as to facilitate the subsequent odor measurement.

[0005] The inventors have found through research that the pretreatment method for odor detection of wax particles in the prior art has at least the following defects:

[0006] After the wax particles to be tested are chopped up, the odor release enhancement effect is not good, resulting in low accuracy of the odor detection results.

[0007] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0008] The purpose of the present invention is to enhance the odor release effect of the granular wax to be detected, thereby improving the accuracy of the odor detection result.

[0009] To achieve the above object, the present invention provides a pretreatment method for odor detection of wax particles, comprising the steps of:

[0010] S11, obtaining property attribute data of the granular wax to be detected; the property attribute data includes the melting point and the needle penetration of the granular wax to be detected after melting and solidification;

[0011] S12, determining the corresponding suitable ambient temperature value and suitable pressure value according to the property attribute data of the granular wax to be detected;

[0012] S13, pressurizing the wax particles to be tested at the suitable pressure value at the suitable ambient temperature to generate a block of wax to be tested;

[0013] S14, scraping the block of wax to be inspected to generate a thin sheet of wax to be inspected.

[0014] In the present invention, the step of obtaining the property attribute data of the granular wax to be detected includes:

[0015] Determining the melting point of the granular wax to be detected;

[0016] After a portion of the granular wax to be tested is melted, it is solidified into a block wax by natural cooling;

[0017] The needle penetration of the block wax was measured.

[0018] In the present invention, the suitable ambient temperature value includes:

[0019] The temperature value required to make the wax particles in the pressed wax block to be inspected adhere to each other under a specific pressure value.

[0020] In the present invention, the suitable pressure value includes:

[0021] Under the suitable ambient temperature value, the wax to be tested can be pressed into a block of wax to be tested with a pressure value required for a preset needle penetration.

[0022] In the present invention, the method for determining the suitable ambient temperature value includes:

[0023] A plurality of granular waxes with different melting points are obtained as first test granular waxes, and the operation for each first test granular wax is as follows:

[0024] After the melting point value of the first test wax granules is determined, the first test wax granules are pressurized with a specific pressure value at different ambient temperatures; the ambient temperature value required for the first test wax granules to be adhered together after being pressed into blocks is determined as the appropriate ambient temperature value;

[0025] The suitable environmental temperature value of each first test wax pellet is used as the dependent variable data set, and the melting point of each first test wax pellet is used as the independent variable data set;

[0026] Model training is performed based on the dependent variable data set and the independent variable data set to generate an ambient temperature prediction model for predicting the appropriate ambient temperature value of the granular wax through its melting point.

[0027] In the present invention, the method for determining the appropriate pressure value includes:

[0028] A plurality of granular waxes having different suitable ambient temperature values ​​are obtained as the second test granular waxes, and the operation for each second test granular wax is as follows:

[0029] After determining the suitable ambient temperature value of the second test wax granule, pressurize the first test wax granule at different pressure values ​​respectively; determine the suitable pressure value of the test wax granule according to the pressure value required when the second test wax granule pressed into a block reaches a preset needle penetration;

[0030] The suitable pressure value of each test wax granule is taken as the dependent variable data set, and the needle penetration of each test wax granule is taken as the independent variable data set;

[0031] Model training is performed based on the dependent variable data set and the independent variable data set to generate a pressure prediction model for predicting the appropriate pressure value of the granular wax through its needle penetration.

[0032] In the present invention, the method of determining the corresponding suitable ambient temperature value and suitable pressure value according to the property attribute data of the granular wax to be detected includes:

[0033] A plurality of granular waxes having different melting points are obtained as the third test granular waxes, and the operation for each third test granular wax is as follows:

[0034] Determine the post-melt solidification needle penetration of the third test wax pellet;

[0035] After the melting point value of the third test wax granule is determined, the third test wax granule is pressurized with different pressure values ​​at different ambient temperatures to press the third test wax granule into a block;

[0036] Determine the test needle penetration of the third test wax pellets in block form;

[0037] When the difference between the post-melting solidification needle penetration of the third test granular wax and the test needle penetration of the third test granular wax is less than a preset value, determining a suitable ambient temperature value and a suitable pressure value of the third test granular wax;

[0038] The suitable ambient temperature value and the suitable pressure value corresponding to the granular wax to be detected are determined according to the corresponding relationship between the melting points of granular waxes with different melting points and the suitable ambient temperature value and the suitable pressure value.

[0039] In the present invention, the method of determining the suitable ambient temperature value and the suitable pressure value corresponding to the granular wax to be detected according to the corresponding relationship between the melting points of granular waxes with different melting points and the suitable ambient temperature value and the suitable pressure value comprises:

[0040] Establish the corresponding relationship between the melting point of granular wax with different melting points and the suitable ambient temperature and pressure values;

[0041] The melting point of the granular wax to be detected is obtained, and the melting point is used as input to determine the appropriate ambient temperature value and the appropriate pressure value according to the corresponding relationship.

[0042] In the present invention, the method of determining the suitable ambient temperature value and the suitable pressure value corresponding to the granular wax to be detected according to the corresponding relationship between the melting points of granular waxes with different melting points and the suitable ambient temperature value and the suitable pressure value comprises:

[0043] The suitable environmental temperature value and the suitable pressure value of each third test wax pellet are used as the dependent variable data set, and the melting point of each third test wax pellet is used as the independent variable data set;

[0044] Model training is performed based on the dependent variable data set and the independent variable data set to generate a detection prediction model for predicting the appropriate pressure value and the appropriate ambient temperature value of the granular wax through its melting point.

[0045] In the present invention, the specific pressure value is 2MP-3MP.

[0046] In the present invention, before the granular wax to be detected is pressurized to the appropriate pressure value, the method further includes:

[0047] The wax particles to be detected are crushed.

[0048] In the present invention, the step of pressurizing the wax particles to be tested at the suitable pressure value at the suitable ambient temperature to generate a block of wax to be tested also includes:

[0049] The duration of the pressurization process is 10 seconds to 20 seconds.

[0050] Beneficial effects:

[0051] In the present invention, in order to obtain the granular wax products required for olfactory detection, it is necessary to first press the granular wax into a block of wax to be detected, and then obtain the thin flake wax to be detected by slicing; in order to make the properties of the obtained thin flake wax to be detected consistent with the original granular wax, it is necessary to make the pressed block wax to be detected have a certain degree of adhesion, and make its density consistent with the original granular wax. To this end, the present invention first melts part of the granular wax to be detected and then naturally cools and solidifies it into a block wax, and then obtains the melting point, needle penetration and other property attribute data of the granular wax to be detected. In this way, the suitable ambient temperature value and suitable pressure value for pressing the granular wax to be detected can be determined according to the property attribute data of the granular wax to be detected; then, after the granular wax to be detected is pressed at an ambient temperature of a suitable ambient temperature value and a suitable pressure value to form a block wax to be detected, the block wax to be detected is sliced ​​into thin flakes of wax to be detected.

[0052] Since the components and properties of the block wax to be tested obtained by the present invention are consistent with those of the original granular wax to be tested, it will not affect the results of subsequent olfactory detection; then, since the block wax to be tested obtained by the present invention is a whole, it is more suitable for slicing operations. Therefore, the block wax to be tested is cut into thin slices to obtain thin slices of wax to be tested with uniform thickness and consistent shape, thereby improving the stability of the odor release of the wax to be tested.

[0053] In addition, compared with the granular wax obtained by directly chopping granular wax in the prior art, the surface area of ​​the thin slices of wax to be tested of the same mass obtained by the present invention is much larger, thereby effectively increasing the area of ​​contact between the wax to be tested and the air, so that the odor of the wax to be tested is released more fully.

[0054] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, and to make the above and other purposes, technical features and advantages of the present invention easier to understand, one or more preferred embodiments are listed below and described in detail with the accompanying drawings as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 This is a schematic diagram of a paraffin odor detection molding device and a detection method according to an embodiment of the present invention.

[0056] Figure 2 This is a schematic diagram of Example 2 of a molding mold of a paraffin odor detection molding device and a detection method according to one embodiment of the present invention.

[0057] Figure 3 This is a schematic diagram of Example 3 of a molding mold for a paraffin odor detection molding device and a detection method according to one embodiment of the present invention.

[0058] Figure 4 This is a schematic diagram of Example 4 of a molding mold for a paraffin odor detection molding device and a detection method according to one embodiment of the present invention. DETAILED DESCRIPTION

[0059] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific implementation modes.

[0060] Unless explicitly stated otherwise, throughout the specification and claims, the term “comprise” or variations such as “include” or “comprising”, etc., will be understood to include the stated elements or components but not to exclude other elements or components.

[0061] In this document, for the convenience of description, spatial relative terms such as "below", "below", "down", "above", "above", "upper", etc. may be used to describe the relationship between one element or feature and another element or feature in the accompanying drawings. It should be understood that the spatial relative terms are intended to include different directions of objects in use or operation in addition to the directions drawn in the drawings. For example, if the object in the figure is turned over, the elements described as being "below" or "below" other elements or features will be oriented "above" the elements or features. Therefore, the exemplary term "below" can include both below and above. Objects may also have other orientations (rotated 90 degrees or other orientations) and the spatial relative terms used in this document should be interpreted accordingly.

[0062] In this document, the terms "first", "second", etc. are used to distinguish two different elements or parts, and are not used to limit a specific position or relative relationship. In other words, in some embodiments, the terms "first", "second", etc. can also be interchangeable.

[0063] In order to enhance the odor release effect of the wax particles to be tested and improve the accuracy of the odor detection results, Figures 1 to 4 As shown, an embodiment of the present invention provides a pretreatment method for odor detection of granular wax, comprising:

[0064] S11, obtaining property attribute data of the granular wax to be detected; the property attribute data includes the melting point and the needle penetration of the granular wax to be detected after melting and solidification;

[0065] After research, the inventors found that in the prior art, the granular wax is directly chopped up for odor detection. On the one hand, the contact area between the granular wax obtained by this method and the air is limited, which is not conducive to the full and rapid release of odor-causing substances; on the other hand, the granular wax obtained by directly chopping the granular wax is not easy to be uniform in size and has large differences in shape, which can easily cause individual differences in the granular wax to be detected, thereby affecting the accuracy and stability of the subsequent odor detection results.

[0066] The inventors also found that the volatilization effect of the odor-causing substances of the thin flake granular wax obtained by slicing the block wax to be tested is better than that of the broken granular wax obtained by directly cutting the granular wax. However, if the granular wax is directly pressed into block wax, then its density and hardness will be greatly different from the density and hardness of the original granular wax itself, which will seriously affect the accuracy of subsequent odor detection. On the other hand, if the granular wax is melted into a liquid state and then naturally cooled and solidified, although the viscosity, density and hardness of the obtained block wax are the same as the density and hardness of the granular wax itself, in the process of heating and melting the granular wax, its odor-causing substances will volatilize in large quantities, causing the components of the granular wax to be detected to change, so that the solidified block wax cannot be used for odor detection.

[0067] The inventive concept of the embodiment of the present invention may include measuring the needle penetration of the granular wax to be tested by melting the granular wax into a liquid state and then naturally cooling and solidifying it into a block wax, and then obtaining the physical properties of the granular wax such as the density and hardness; the post-melt solidification needle penetration in the embodiment of the present invention is the needle penetration measured after the granular wax is melted into a liquid state and then naturally cooling and solidifying it into a block wax, and the post-melt solidification needle penetration of the granular wax to be tested is equivalent to the needle penetration of the granular wax to be tested.

[0068] S12, determining the corresponding suitable ambient temperature value and suitable pressure value according to the property attribute data of the granular wax to be detected;

[0069] When the needle penetration of the granular wax pressed into block wax is consistent with the needle penetration of the block wax obtained after the granular wax is melted into liquid and then naturally cooled and solidified, at this time, the pressure value for pressing the granular wax into block wax is the appropriate pressure value.

[0070] Furthermore, in order to make the pressed block of wax to be tested firmly adhere to each other and avoid loosening, in an embodiment of the present invention, the ambient temperature when the block of wax to be tested is pressed can also be set. Specifically, the ambient temperature will directly affect the adhesion between the wax particles. Under the premise of minimizing the volatilization of odor-causing substances in the wax particles, appropriate adjustment of the ambient temperature can make the pressed block of wax to be tested better adhere to each other, thereby making the pressed block of wax to be tested more suitable for scraping blades, thereby improving the accuracy of subsequent odor detection.

[0071] In the embodiment of the present invention, the corresponding suitable ambient temperature value and suitable pressure value can be calculated and predicted according to the melting point of the granular wax by means of a prediction model, specifically:

[0072] The suitable ambient temperature value in the embodiment of the present invention refers to the temperature value required to make the wax particles in the pressed block of wax to be inspected adhere to each other under a specific pressure value.

[0073] In practical applications, the method for determining the appropriate ambient temperature value may specifically include:

[0074] A plurality of granular waxes with different melting points are obtained as first test granular waxes, and each first test granular wax is subjected to the following operation: Figure 2 As shown:

[0075] S101, after determining the melting point value of the first test wax granules, pressurizing the first test wax granules with a specific pressure value at different ambient temperatures; determining the ambient temperature value required for the first test wax granules to be pressed into blocks and then be able to stick together as the appropriate ambient temperature value;

[0076] First, a specific pressure value can be set as a benchmark, and the adhesion of the block wax after the first test granular wax is pressed is observed at different ambient temperatures; the lowest ambient temperature at which the wax can be adhered together is determined as the appropriate ambient temperature value. In practical applications, the specific value of the specific pressure value can be set to 2MP-3MP.

[0077] S102, taking the suitable environmental temperature value of each first test wax granule as a dependent variable data set, and taking the melting point of each first test wax granule as an independent variable data set;

[0078] The suitable ambient temperature value of the first test wax pellets obtained in step S101 is used as a dependent variable data set, and the melting point of each first test wax pellet is used as an independent variable data set.

[0079] S103, performing model training according to the dependent variable data set and the independent variable data set to generate an ambient temperature prediction model for predicting the appropriate ambient temperature value of the granular wax through its melting point.

[0080] By allocating appropriate test data and training data and performing model training, an ambient temperature prediction model for predicting the appropriate ambient temperature value of the pelletized wax by its melting point can be generated.

[0081] In this way, after the environmental temperature prediction model is generated, the corresponding suitable environmental temperature value can be calculated as long as the melting point of the wax particle to be tested is known.

[0082] Next, the suitable pressure value in the embodiment of the present invention refers to the pressure value required to press the granular wax to be tested into a block of wax to be tested with a preset penetration under a suitable ambient temperature value; it should be noted that the preset penetration in the embodiment of the present invention is also the post-melting solidification penetration of the granular wax to be tested.

[0083] The specific method for determining the appropriate pressure value in the embodiment of the present invention may include:

[0084] Obtain a plurality of granular waxes having different suitable ambient temperature values ​​as the second test granular waxes, and perform the following operations on each second test granular wax: Figure 3 As shown:

[0085] S201, after determining the suitable ambient temperature value of the second test wax granules, pressurizing the test wax granules at different pressure values; determining the suitable pressure value of the test wax granules according to the pressure value required when the second test wax granules pressed into a block reach a preset needle penetration;

[0086] The second test wax granules in the embodiment of the present invention can be taken from the first test wax granules whose corresponding suitable ambient temperature value has been determined, or taken from the wax granules whose corresponding suitable ambient temperature value has been calculated by the ambient temperature prediction model. Similarly, the various second test wax granules in the embodiment of the present invention also have different melting points.

[0087] Taking the suitable environment temperature of the second test wax granule as the environment temperature, the second test wax granule is pressed into block wax at different pressures, and then the needle penetration thereof is measured;

[0088] The appropriate pressure value of the second test granular wax is determined by comparing it with the corresponding penetration of the block wax solidified after melting; that is, at its appropriate ambient temperature, when the block wax pressed out of a certain second test granular wax has the same penetration as the block wax solidified after melting, the pressure value of pressing the second test granular wax can be determined as the appropriate pressure value. In other words, the preset penetration is equivalent to the penetration of the granular wax pressed into a block after melting.

[0089] S202, taking the suitable pressure value of each second test wax granule as a dependent variable data set, and taking the needle penetration of each test wax granule as an independent variable data set;

[0090] The suitable ring pressure values ​​of the second test wax pellets obtained in step S201 are used as the dependent variable data set, and the needle penetration of each second test wax pellet is used as the independent variable data set.

[0091] S203, performing model training according to the dependent variable data set and the independent variable data set to generate a pressure prediction model for predicting an appropriate pressure value of the granular wax through its needle penetration.

[0092] By allocating appropriate test data and training data and performing model training, a pressure value prediction model for predicting the appropriate pressure value of the pellet wax according to its needle penetration can be generated.

[0093] Thus, after the pressure value prediction model is generated, the corresponding appropriate pressure value can be calculated as long as the needle penetration of the wax granule to be tested is known. The needle penetration of the wax granule to be tested can be obtained by the needle penetration of the wax granule after melting and solidification.

[0094] After the ambient temperature prediction model and the pressure value prediction model are generated, the corresponding suitable ambient temperature value and the suitable pressure value can be calculated according to the melting point and needle penetration of the granular wax to be tested.

[0095] In addition, in the embodiment of the present invention, another method can be used to obtain the suitable ambient temperature value and the suitable pressure value required for pressing the granular wax to be tested, specifically:

[0096] The most basic way is to obtain it through experiments. Under different temperature environments, the granular waxes with various melting points to be tested are pressed at different pressures. Then, the appropriate ambient temperature and pressure values ​​corresponding to the granular waxes of each melting point are obtained by observing the adhesion and penetration of the block wax. In this way, the corresponding relationship between the melting point of the granular wax and the appropriate ambient temperature and pressure values ​​can be established.

[0097] The above-mentioned corresponding relationship can be determined in a specific manner by obtaining a plurality of granular waxes having different melting points as the third test granular waxes, and performing the following operations on each third test granular wax: Figure 4 As shown:

[0098] S301, determining the post-melting solidification needle penetration of the third test granular wax;

[0099] For each third test granular wax, a portion of it can be melted and then naturally cooled and solidified into block wax. The melted and solidified granular wax can be used to obtain the property attribute data of the granular wax, such as needle penetration.

[0100] S302, after determining the melting point value of the third test wax granules, pressurizing the third test wax granules with different pressure values ​​at different ambient temperatures to press the third test wax granules into blocks;

[0101] The third test wax of each melting point is pressed at various pressure values ​​at different ambient temperatures.

[0102] S303, measuring the test needle penetration of the third test granular wax in block shape; the test needle penetration in the embodiment of the present invention refers to the needle penetration of the third test granular wax pressed into block shape.

[0103] S304, when the difference between the post-melting solidification needle penetration of the third test granular wax and the test needle penetration of the third test granular wax is less than a preset value, determining a suitable ambient temperature value and a suitable pressure value of the third test granular wax;

[0104] That is to say, when the needle penetration of the third test granular wax pressed into a block is consistent with the needle penetration of the block wax solidified after melting, it can be determined that the current ambient temperature and the pressure value used should be the appropriate ambient temperature and pressure value for the third test granular wax.

[0105] Through steps S301 to S304, a relationship table including the corresponding relationships between various melting point granular waxes and suitable ambient temperature values ​​and suitable pressure values ​​can be constructed.

[0106] S305 , determining the suitable ambient temperature value and the suitable pressure value corresponding to the granular wax to be detected according to the corresponding relationship between the melting points of the granular waxes with different melting points and the suitable ambient temperature value and the suitable pressure value.

[0107] In this way, when performing the preprocessing of odor detection, after determining the melting point of the granular wax to be detected, the corresponding suitable ambient temperature value and suitable pressure value can be obtained according to the above relationship table.

[0108] In the embodiment of the present invention, it is only necessary to obtain the melting point of the test granular wax, and then measure the needle penetration of the block wax pressed under different pressures at different ambient temperatures. When the pressed needle penetration is consistent with the needle penetration of the melted and solidified wax, the appropriate ambient temperature value and the appropriate pressure value corresponding to the granular wax of the melting point can be obtained.

[0109] When pre-treating the granular wax to be tested, the above correspondence can be used to obtain the corresponding suitable ambient temperature value and suitable pressure value according to the melting point of the granular wax, so as to set the ambient temperature of the granular wax to be tested and the pressure value during pressing.

[0110] Preferably, through the above correspondence, determining the corresponding suitable ambient temperature value and suitable pressure value according to the melting point of the granular wax can also be achieved by building a prediction model, specifically:

[0111] S401, taking the suitable environmental temperature value and the suitable pressure value of each third test wax pellet as a dependent variable data set, and taking the melting point of each third test wax pellet as an independent variable data set;

[0112] S402, performing model training according to the dependent variable data set and the independent variable data set to generate a detection prediction model for predicting a suitable pressure value and a suitable ambient temperature value of the granular wax according to its melting point.

[0113] By allocating appropriate test data and training data and performing model training, a pressure detection prediction model for predicting the appropriate ambient temperature value and the appropriate pressure value of the granular wax by its melting point can be generated.

[0114] S13, pressurizing the wax particles to be tested at a suitable pressure value at a suitable ambient temperature to generate a block of wax to be tested;

[0115] After determining the suitable ambient temperature and the suitable pressure value of the wax granules to be tested, the wax granules to be tested can be pressed into the corresponding block wax to be tested.

[0116] S14, scraping the block of wax to be inspected to generate a thin sheet of wax to be inspected.

[0117] Next, the block of wax to be tested needs to be scraped to generate a thin sheet of wax to be tested suitable for olfactory detection.

[0118] Furthermore, in the embodiment of the present invention, the granular wax to be detected may be crushed before being pressurized to a suitable pressure value.

[0119] Since the original shape of the wax particles to be tested is a spherical particle shape, and the spherical shape will lead to a greater compressive strength of the wax particles, the force transmission between the wax particles after being compressed is not uniform, which will make the force on the wax particles to be tested not uniform during compression, and thus easily cause the density of the pressed wax block to be tested to be not uniform, thus affecting the consistency of the shape of the subsequent slices of wax to be tested. For this reason, in an embodiment of the present invention, the wax particles to be pressurized can also be crushed to destroy their spherical outer structure, so that the density of the pressed wax block to be tested will be more uniform.

[0120] In summary, in the present invention, in order to obtain the granular wax products required for olfactory detection, it is necessary to first press the granular wax into a block of wax to be detected, and then obtain the thin flake wax to be detected by scraping; in order to make the properties of the obtained thin flake wax to be detected consistent with the original granular wax, the hardness and density of the pressed block wax to be detected need to be consistent with the hardness and density of the original granular wax. To this end, the present invention first melts part of the granular wax to be detected and then naturally cools and solidifies it into a block wax, and then obtains the melting point and needle penetration of the granular wax to be detected. In this way, the appropriate ambient temperature value and the appropriate pressure value for pressing the granular wax to be detected can be determined according to the needle penetration of the granular wax to be detected; then, after the granular wax to be detected is pressed at an ambient temperature of an appropriate ambient temperature value and a suitable pressure value to form a block of wax to be detected, the block of wax to be detected is sliced ​​into thin flakes of wax to be detected.

[0121] Since the components and properties of the block wax to be tested obtained by the present invention are consistent with those of the original granular wax to be tested, it will not affect the results of subsequent olfactory detection; then, since the block wax to be tested obtained by the present invention is a whole, it is more suitable for slicing operations. Therefore, the block wax to be tested is cut into thin slices to obtain thin slices of wax to be tested with uniform thickness and consistent shape, thereby improving the stability of the odor release of the wax to be tested.

[0122] The foregoing description of specific exemplary embodiments of the present invention is for the purpose of illustration and demonstration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the present invention and various different selections and changes. Any simple modifications, equivalent changes and modifications made to the above exemplary embodiments should fall within the scope of protection of the present invention.

Claims

1. A pretreatment method for olfactory detection of granular wax, characterized in that: Includes steps: S11, obtaining property attribute data of the granular wax to be detected; the property attribute data includes the melting point and the post-melting solidification needle penetration of the granular wax to be detected; the post-melting solidification needle penetration is the needle penetration measured after the granular wax is melted into a liquid state and then naturally cooled and solidified into a block wax; S12, determining the corresponding suitable ambient temperature value and suitable pressure value according to the property attribute data of the granular wax to be detected; The suitable environmental temperature value includes: the temperature value required to make the granular wax in the pressed block of wax to be tested adhere to each other under a specific pressure value; the method for determining the suitable environmental temperature value includes: obtaining a plurality of granular waxes with different melting points as the first test granular waxes, and performing the following operations on each first test granular wax: after determining the melting point value of the first test granular wax, pressurizing the first test granular wax with a specific pressure value at different environmental temperatures; determining the environmental temperature value required for the first test granular wax to adhere together after being pressed into a block as the suitable environmental temperature value; taking the suitable environmental temperature value of each first test granular wax as a dependent variable data set, and taking the melting point of each first test granular wax as an independent variable data set; performing model training based on the dependent variable data set and the independent variable data set to generate an environmental temperature prediction model for predicting the suitable environmental temperature value of the granular wax by its melting point; The suitable pressure value includes: under the suitable ambient temperature value, the pressure value required for the block of wax to be tested to be pressed into a predetermined penetration; the method for determining the suitable pressure value includes: obtaining a plurality of granular waxes with different suitable ambient temperature values ​​as second test granular waxes, and performing the following operations on each second test granular wax: after determining the suitable ambient temperature value of the second test granular wax, pressurizing the first test granular wax at different pressure values; determining the suitable pressure value of the test granular wax according to the pressure value required when the second test granular wax pressed into a block reaches the predetermined penetration; taking the suitable pressure value of each test granular wax as a dependent variable data set, and taking the penetration of each test granular wax as an independent variable data set; performing model training according to the dependent variable data set and the independent variable data set, and generating a pressure prediction model for predicting the suitable pressure value of the granular wax through its penetration; the specific pressure value is 2MP-3MP; S13, pressurizing the wax particles to be tested at the suitable pressure value at the suitable ambient temperature to generate a block of wax to be tested; S14, slicing the block of wax to be inspected to generate thin slices of wax to be inspected.

2. The pretreatment method for odor detection of granular wax according to claim 1, characterized in that: The step of obtaining the property attribute data of the granular wax to be detected includes: Determining the melting point of the granular wax to be detected; After a portion of the granular wax to be tested is melted, it is solidified into a block wax by natural cooling; The needle penetration of the block wax was measured.

3. The pretreatment method for odor detection of wax particles according to claim 2, characterized in that: The method of determining the corresponding suitable ambient temperature value and suitable pressure value according to the property attribute data of the granular wax to be detected includes: A plurality of granular waxes having different melting points are obtained as the third test granular waxes, and the operation for each third test granular wax is as follows: Determine the post-melt solidification needle penetration of the third test wax pellet; After the melting point value of the third test wax granule is determined, the third test wax granule is pressurized with different pressure values ​​at different ambient temperatures to press the third test wax granule into a block; Determine the test needle penetration of the third test wax pellets in block form; When the difference between the post-melting solidification needle penetration of the third test granular wax and the test needle penetration of the third test granular wax is less than a preset value, determining a suitable ambient temperature value and a suitable pressure value of the third test granular wax; The suitable ambient temperature value and the suitable pressure value corresponding to the granular wax to be detected are determined according to the corresponding relationship between the melting points of granular waxes with different melting points and the suitable ambient temperature value and the suitable pressure value.

4. The pretreatment method for odor detection of wax particles according to claim 3, characterized in that: The method of determining the suitable ambient temperature value and the suitable pressure value corresponding to the granular wax to be detected according to the corresponding relationship between the melting points of the granular waxes with different melting points and the suitable ambient temperature value and the suitable pressure value comprises: Establish the corresponding relationship between the melting point of granular wax with different melting points and the suitable ambient temperature and pressure values; The melting point of the granular wax to be detected is obtained, and the melting point is used as input to determine the appropriate ambient temperature value and the appropriate pressure value according to the corresponding relationship.

5. The pretreatment method for odor detection of wax particles according to claim 3, characterized in that: The method of determining the suitable ambient temperature value and the suitable pressure value corresponding to the granular wax to be detected according to the corresponding relationship between the melting points of the granular waxes with different melting points and the suitable ambient temperature value and the suitable pressure value comprises: The suitable environmental temperature value and the suitable pressure value of each third test wax pellet are used as the dependent variable data set, and the melting point of each third test wax pellet is used as the independent variable data set; Model training is performed based on the dependent variable data set and the independent variable data set to generate a detection prediction model for predicting the appropriate pressure value and the appropriate ambient temperature value of the granular wax through its melting point.

6. The pretreatment method for odor detection of wax particles according to any one of claims 1 to 5, characterized in that: Before the granular wax to be tested is pressurized to the appropriate pressure value, the method further comprises: The wax particles to be detected are crushed.

7. The pretreatment method for odor detection of wax particles according to claim 6, characterized in that: The step of pressurizing the wax particles to be tested at the appropriate pressure value at the appropriate ambient temperature to generate a block of wax to be tested also includes: The duration of the pressurization process is 10 seconds to 20 seconds.

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