Threshing and redrying processing system

Abstract

The utility model provides a threshing and redrying processing system which comprises a tobacco moistening machine (2), a threshing machine (3), redrying equipment (4) and detection equipment (5) which are sequentially connected through conveying equipment, and the detection equipment (5) is used for detecting quality indexes of processed tobacco leaves after tobacco leaf raw materials are processed by the tobacco moistening machine (2), the threshing machine (3) and the redrying equipment (4) respectively. The threshing and redrying processing system further comprises a texture analyzer (6) used for detecting physical property indexes of the tobacco leaf raw materials so as to determine initial processing parameters of the leaf moistening machine (2), the threshing machine (3) and the redrying equipment (4). The classification of the tobacco leaf raw materials is determined according to the physical characteristic indexes detected by the texture analyzer, so that initial processing parameters which are more accurate than those in the prior art are set for downstream equipment of threshing and redrying equipment according to the classification of the tobacco leaf raw materials.

Description

TECHNICAL FIELD

[0001] The present application relates to tobacco mechanical equipment, and more particularly, to a threshing and redrying processing system. BACKGROUND

[0002] Threshing and redrying is an intermediate processing link in the cigarette production process. The moisture content of the processed tobacco leaves is controlled by the leaf moistening machine on the threshing and redrying production line, so that the tobacco leaves reach a suitable humidity, creating good conditions for subsequent threshing. Then, the leaf stems in the tobacco leaves are rapidly separated by the threshing machine, and finally, the sheet tobacco is adjusted to a suitable moisture content by the redrying equipment through re-drying, so as to meet the requirements of the cigarette industry.

[0003] At present, the determination of the initial processing parameters of the threshing and redrying of the redrying enterprise is usually based on the origin, part, grade of the processed tobacco leaves, or simply classified according to high-grade tobacco, medium-grade tobacco, and low-grade tobacco. However, as the in-depth study of the processing resistance of tobacco leaves shows that even the upper tobacco leaves and the middle tobacco leaves, the middle tobacco leaves and the lower tobacco leaves, or even the upper, middle and lower tobacco leaves from the same origin may belong to the same processing resistance category, which leads to a small degree of differentiation of the suitable control range of the quality indicators and the adjustable control range of the key process parameters of the processing technology of different categories of processing resistance tobacco leaves. According to the information of the origin, type, and origin of the raw materials, the raw materials are roughly classified, and the working parameters of the threshing and redrying processing system are determined accordingly. This classification method is not accurate, resulting in the need for more iteration steps to obtain ideal processing quality, reducing the production efficiency of the threshing and redrying. In addition, although the process flow of the national threshing and redrying production line is basically consistent, there are differences in the configuration and performance of the main equipment such as leaf moistening, threshing, and redrying. Such differences make it inappropriate to determine a set of initial processing parameters for each category of processing resistance tobacco leaves.

[0004] Therefore, it is necessary to determine the initial processing parameters of the leaf moistening machine, the threshing machine, and the redrying equipment according to the different physical characteristics of the tobacco leaves, so as to further improve the processing quality of the threshing and redrying. CONTENT OF THE INVENTION

[0005] One of the purposes of the present application is to provide a threshing and redrying processing system which can overcome the defects of the prior art, more accurately determine the initial processing parameters of the leaf moistening machine, the threshing machine, and the redrying equipment according to the different physical characteristics of the tobacco leaves, and further improve the processing quality of the threshing and redrying, and reduce the amount of unqualified products.

[0006] According to a first aspect of the present application, a tobacco primary processing system is provided, comprising a leaf moistener, a threshing machine, a redrying machine connected in sequence by conveying equipment, and a detection device for detecting the quality index of processed tobacco after processing of tobacco primary material in the leaf moistener, the threshing machine and the redrying machine respectively, characterized in that the tobacco primary processing system further comprises a texture analyzer for detecting the physical property index of the tobacco primary material to determine the initial processing parameters of the leaf moistener, the threshing machine and the redrying machine. The classification of the tobacco primary material is determined according to the physical property index detected by the texture analyzer, so as to facilitate setting of more accurate initial processing parameters for the downstream equipment of the tobacco primary processing system according to the classification of the tobacco primary material.

[0007] Preferably, the texture analyzer comprises a display screen, a switch, a measuring arm, and a probe mount, and detects the following physical property indexes of the tobacco primary material: adhesion, shear strength, tensile strength, penetration strength, and leaf stem binding force.

[0008] Preferably, the texture analyzer further comprises at least one base for placing a test sample.

[0009] Preferably, the base is fixed using a butterfly nut and a T-bolt.

[0010] Preferably, the texture analyzer comprises a rotating base and a clamp base.

[0011] Preferably, the probe is mounted on the probe mount.

[0012] Preferably, the texture analyzer further comprises at least one clamp for fixing the tobacco primary material.

[0013] Preferably, the detection device for detecting the quality index of the tobacco primary material comprises an oven, a quality control vibrating screen, a stem content tester, and a multi-layer vibrating screen classifier.

[0014] The tobacco primary processing system of the present disclosure has the advantage that by detecting the physical property index of processed tobacco primary material using a texture analyzer, classifying the tobacco primary material to be processed according to processing resistance, and selecting a suitable processing intensity for tobacco of the corresponding category according to the classification of the primary material, the key and important initial processing parameters of key processes such as leaf moistening, threshing, and redrying of each category of tobacco primary material are preliminarily determined, and the tobacco primary processing technology is continuously optimized through the iterative process of detection and adjustment of parameters, so that the parameters of the leaf moistener, the threshing machine and the redrying machine can be more accurately determined according to the different qualities of the tobacco primary material, thereby further improving the processing quality of the tobacco primary processing system and reducing the amount of unqualified products. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings are included to provide a further understanding of the present application, and are incorporated in and constitute a part of this application, illustrate embodiments of the present application and serve to explain the present application, and do not limit the present application in any manner. In the drawings:

[0016] Figure 1 A diagram showing a prior art threshing and redrying processing system is shown;

[0017] Figure 2 A diagram showing a threshing and redrying processing system according to the present disclosure is shown;

[0018] Figure 3 A diagram showing Figure 2 A diagram showing a texture analyzer used in the threshing and redrying processing system according to the present disclosure is shown; and

[0019] Figure 4 A diagram showing Figure 5 Different bases of the texture analyzer are shown, respectively. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0021] In the description of the present application, it should be understood that the terms "center", "transverse", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the scope of protection of the present application.

[0022] Referring to Figure 1 A diagram showing a prior art threshing and redrying processing system is shown. As shown in Figure 1 The prior art threshing and redrying processing system generally includes a leaf moistening machine 2, a threshing machine 3, and a redrying device 4 connected in sequence by conveying equipment, and further includes a detection device 5 for detecting the quality indicators of the processed tobacco leaves after the tobacco leaves are processed by the leaf moistening machine 2, the threshing machine 3, and the redrying device 4, respectively. As described above, in the prior art threshing and redrying processing system, the quality indicators of the processed tobacco leaves are detected after the tobacco leaves are processed by the leaf moistening machine 2, the threshing machine 3, and the redrying device 4, respectively, and the quality indicators of the processed tobacco leaves are detected by the detection device 5. Figure 1In block 1, the tobacco raw material is classified according to the origin, location, grade, or simply according to the high, medium, and low grades, so as to preliminarily determine the initial processing parameters of the leaf conditioning machine 2, the threshing machine 3, and the redrying equipment 4. Then, the processing parameters of the leaf conditioning machine 2, the threshing machine 3, and the redrying equipment 4 are adjusted according to the detection results of the detection equipment 5 during the processing, and the iteration process of processing, detection, and adjustment is repeated until the ideal processing quality is obtained.

[0023] The prior art threshing and redrying processing system has the following defects: the workers roughly classify the raw materials according to the origin, type, and origin of the raw materials, and determine the initial working parameters of the threshing and redrying processing system according to the classification. This classification method is not accurate, which requires more iteration steps to obtain the ideal processing quality, reduces the production efficiency of the threshing and redrying, and produces more unqualified products. In addition, there are differences in the configuration and performance of the leaf conditioning machine, the threshing machine, and the redrying equipment. These differences make it unsuitable to determine a set of universal initial processing parameters for each type of tobacco raw material.

[0024] Referring to Figure 2 The threshing and redrying equipment of the present disclosure includes a texture analyzer 6 for detecting the physical property index of the tobacco raw material, and the initial processing parameters of the downstream equipment of the threshing and redrying equipment are set according to the physical property index detected by the texture analyzer 6. The initial processing parameters set by the threshing and redrying equipment of the present disclosure for the leaf conditioning machine 2, the threshing machine 3, and the redrying equipment 4 are more accurate than the initial processing parameters set by the prior art.

[0025] Preferably, the classification of the tobacco raw material is determined according to the physical property index detected by the texture analyzer 6, and the initial processing parameters of the downstream equipment of the threshing and redrying equipment are set according to the classification of the tobacco raw material.

[0026] The texture analyzer is usually used to detect the physical property index of a food sample. Figure 3 An embodiment of the texture analyzer 6 that can be used in the threshing and redrying equipment of the present disclosure is shown. Referring to Figure 3 The texture analyzer 6 includes a display screen 7, a switch 8, a measuring arm 9, a probe mount 10, and other components.

[0027] The texture analyzer 6 also includes at least one base for placing a test sample. The base is fixed, for example, using a butterfly nut and a T-bolt. The texture analyzer 6 can use a variety of probes (not shown) that are mounted on the probe mount 10. The probe is selected according to the purpose of the test and the nature of the sample. Figure 4 A rotating base 11 is shown, Figure 5A fixture base 12 is shown. The texture analyzer 6 also has a range of available fixtures (not shown). These fixtures are used to hold the sample in place during the measurement process. Each fixture can be attached to one of the bases.

[0028] The texture analyzer 6 can operate in either compression or tensile mode. In compression mode, the probe is slowly moved downward at a pre-test speed until a threshold is reached. The probe is then moved at a set speed for a distance and into the sample material placed or held on the base. The load will be continuously monitored as a function of time and distance until the probe returns to its starting position. In tensile mode, the sample is typically clamped between a pair of fixtures. When a trigger load is reached, the test will begin as the fixtures are pulled apart. The measured load is recorded as a function of time and distance as the sample is stretched or pulled apart.

[0029] Preferably, the following physical property indicators of tobacco leaf material are detected using the texture analyzer 6: adhesion, shear strength, tensile strength, penetration strength, and stem-leaf bonding. In the adhesion test, the texture analyzer 6 is used to apply a predetermined pressure to a tobacco leaf sample for a predetermined time. The maximum force required to completely separate the probe from the tobacco leaf sample is then determined by pulling the probe upward. In the adhesion test procedure, the base and probe down travel rate, return rate, compression force, hold time, and other parameters are checked and the texture analyzer is run empty to ensure that it is in a stable state. The test sample is secured to the base with the tobacco leaf facing the probe. The tobacco leaf is checked to ensure that it is free of stems and damage at the point of contact with the probe. The switch 8 is activated and the test is run. The maximum force required to completely separate the probe from the tobacco leaf sample is recorded.

[0031] In the shear strength test, the texture analyzer 6 is used to shear a tobacco leaf sample of a specified size at a constant rate of compression. The shear force is recorded and the shear strength of the tobacco leaf is calculated from the recorded data. In the shear strength test procedure, the sample is placed in the fixture and gently straightened to remove any visible slack. The sample is firmly clamped with the clamping pressure being sufficient to ensure that the sample does not slip or damage. The tobacco leaf is checked to ensure that it is free of stems and damage at the point of contact with the probe. The test switch 8 is activated and the test is run. The shear force at which the tobacco leaf sample shears is recorded. The shear strength of the tobacco leaf is calculated from the recorded shear force.

[0032] In the tensile strength test, the texture analyzer 6 is used to stretch the tobacco sample of a specified size to break at a constant stretching rate, record the tension, and calculate the tensile strength of the tobacco according to the recorded data. Before the test, the detection clamp should be cleaned, and the instrument technical parameters such as the detection clamp and the stretching rate should be checked item by item, and the detection instrument should be determined to be in a stable state by running empty. In the tensile strength test step, the sample is placed in the clamp, and the sample is gently straightened to eliminate any visible slack. The sample is firmly clamped, and the clamping pressure ensures that the sample does not slip or be damaged. Start the test switch 8 to test the sample, and record the tension of the tobacco sample when it is stretched to break. The tensile strength of the tobacco is calculated according to the recorded tension.

[0033] In the penetration strength test, the texture analyzer 6 is used to penetrate the tobacco sample of a specified size at a constant rate, record the penetration force, and calculate the penetration strength of the tobacco according to the recorded data. In the penetration strength test step, the sample is placed in the clamp, and the sample is gently straightened to eliminate any visible slack. The sample is firmly clamped, and the clamping pressure should ensure that the sample does not slip or be damaged. It is determined that there is no branch vein or damage on the tobacco in contact with the probe. Start the test switch 8 to test the sample, and record the penetration force. The penetration strength of the tobacco is calculated according to the recorded penetration force.

[0034] In the leaf stem binding force test, the texture analyzer 6 is used to stretch the tobacco sample of a specified size to completely separate the leaf stem at a constant stretching rate, and calculate the average force used in the leaf stem separation process. In the leaf stem binding force test step, the main vein of the test sample is placed vertically in the sample clamp, the tobacco at the leaf stem separation port is placed in the upper pulling probe, and the sample is gently straightened to eliminate any visible slack. The sample is firmly clamped, and the clamping pressure ensures that the sample does not slip or be damaged. Start the test switch 8 to test the sample.

[0035] Preferably, the detection equipment 5 of the threshing and curing equipment according to the present disclosure comprises an oven, a quality control vibrating screen, a stem content in leaf meter, and a multi-layer vibrating screen classifier.

[0036] The main function of the oven is to dry the material, and it is used for sample moisture content detection in the threshing and curing quality test. The oven converts electrical energy into heat energy through electric heating wires, heats the air, and under the action of the temperature controller and the hot air circulation system, the air becomes a hot air flow with a certain temperature and flow rate, which circulates between the samples to achieve the purpose of baking the samples to lose moisture. According to the weight difference before and after baking, the moisture content of the sample can be calculated.

[0037] The quality control vibrating screen separates leaves of different sizes by using the principle of vibrating screening, and then weighs leaves of different sizes, so as to calculate the weight percentage of leaves of different sizes, and to determine the working quality of the threshing machine. The quality control vibrating screen is mainly used for detecting leaves before and after threshing and finished leaves, so as to evaluate the working quality of the threshing section and the curling of the leaves after threshing. The leaves are measured by the quality control vibrating screen, so as to provide accurate basis for adjusting the process conditions of the threshing line and the rotation speed of the threshing machine and the air separation speed.

[0038] The stem-in-leaf rate measuring instrument is essentially a small threshing-air separation machine group for measuring the stem-in-leaf rate. In order to check the stem-in-leaf rate of the processed leaves, a certain number of samples are randomly taken from the production line, and the stem-in-leaf rate measuring instrument is used to process and treat the samples, so as to obtain the weight of pure stems, and to calculate the stem-in-leaf rate. The stem-in-leaf rate measuring instrument is mainly used for detecting the stem-in-leaf rate of leaves in the threshing process, and can also be used for measuring the stem-in-leaf rate of leaf tips, fragments, broken leaves, threshed leaves and finished leaves.

[0039] The multi-layer vibrating screen is used for measuring the stem-in-leaf rate and the fragment structure. The vibrating motor generates exciting force to make the screen rotate and vibrate, and different specifications of screens are used to separate different specifications of stems or fragments.

[0040] The tobacco threshing and redrying equipment has the advantages that: the physical property indexes of the tobacco leaves to be processed are detected by using the texture analyzer, the tobacco leaves to be processed are classified according to the detected physical property indexes, the appropriate processing strength of the corresponding type of tobacco leaves is determined according to the classification of the raw materials, the key and important initial processing parameters of the key processes such as leaf moistening, threshing and redrying of each type of tobacco leaves are preliminarily determined, the processing technology of the tobacco threshing and redrying is continuously optimized through the iteration process of detecting and adjusting the parameters, so that the initial processing parameters of the leaf moistening machine, the threshing machine and the redrying equipment can be more accurately determined according to the different qualities of the tobacco leaves, and the processing quality and production efficiency of the tobacco threshing and redrying are further improved, and the amount of unqualified products is reduced.

[0041] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that they can modify the technical solutions described in the foregoing examples, or make equivalent substitutions for some of the technical features, but these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A leaf threshing and redrying processing system comprising a leaf moistening machine (2), a leaf threshing machine (3), a redrying machine (4) and a detection device (5) for detecting quality indexes of processed tobacco leaves after processing of tobacco leaf materials in the leaf moistening machine (2), the leaf threshing machine (3) and the redrying machine (4) respectively, which are connected in sequence by conveying devices, characterized in that, The tobacco leaf redrying processing system further comprises a texture analyzer (6) for detecting physical property indexes of the tobacco leaf raw material to determine initial processing parameters of the leaf moistening machine (2), the leaf threshing machine (3) and the redrying equipment (4), The texture analyzer (6) comprises a display screen (7), a switch (8), a measuring arm (9), a probe mount (10), and detects the following physical property indexes of the tobacco leaf raw material: adhesion, shear strength, tensile strength, penetration strength, and leaf stem binding force.

2. The threshing and conditioning processing system of claim 1 wherein, The texture analyzer (6) further comprises at least one base for placing a test sample.

3. The threshing and conditioning processing system of claim 2, wherein, The base is fixed by using a butterfly nut and a T-shaped bolt.

4. The threshing and processing system of claim 2, wherein, The texture analyzer (6) comprises a rotating base (11) and a clamp base (12).

5. The threshing and processing system of claim 1 wherein, A probe is mounted on the probe mount (10).

6. The threshing and processing system of claim 1 wherein, The texture analyzer (6) further comprises at least one clamp.

7. The threshing and processing system of claim 1 wherein, The detection equipment (5) comprises an oven, a quality control vibrating screen, a stem content in leaf tester, and a multi-layer vibrating screen classifier.

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