Filtering and transferring device used in reconstituted tobacco water-soluble total sugar detection process

Abstract

The utility model relates to the technical field of reconstituted tobacco, in particular to a filtering and transferring device used in a reconstituted tobacco water-soluble total sugar detection process, which comprises a filtering device main body, a control module, a sample feeding pipe, a filter membrane component, a filtrate quantitative collecting pipe and the like, a control module is arranged on the filtering device main body, at least two rows of sample introduction pipes are arrayed in the filtering device main body, filter membrane assemblies are rotationally arranged in the sample introduction pipes, and the bottoms of the sample introduction pipes are communicated with a filtrate quantitative collection pipe. The sample filtering process is accurately controlled through parameter setting, filtrate is filtered through the filter membrane assembly, connection and disconnection of a communication channel between the sample feeding pipe and the filtrate quantitative collection pipe are controlled through the closable switch, so that the function of quantitatively collecting the filtrate is achieved, and the device has the advantages of being high in filtering efficiency, convenient and fast to operate and easy to maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of reconstituted tobacco, in particular to a filtering and transferring device used in the detection process of total water-soluble sugars in reconstituted tobacco. Background Art

[0002] In the production process of reconstituted tobacco, the content of total water-soluble sugars (TWSS) is an important quality index, which not only affects the taste and aroma of tobacco products, but also affects the combustion characteristics and consumers' health. Therefore, it is necessary to regularly detect TWSS in reconstituted tobacco during the production process.

[0003] As one of the five important detection indexes of reconstituted tobacco, the detection efficiency and accuracy of total water-soluble sugars often determine the quality of reconstituted tobacco, and its quality is particularly important for the improvement of the production efficiency of reconstituted tobacco. In practical applications, continuous flow analyzers are often used to detect its important indexes. During the processing of the sample to be tested, the reconstituted tobacco is usually crushed, extracted and oscillated to obtain a raw material solution containing total water-soluble sugars. The raw material solution is filtered through a filter paper and then transferred to the reaction tube of the continuous flow analyzer for detection. However, this method has the problems of low filtration efficiency, poor filtration effect, and the transfer process takes a certain amount of time, which may cause blockage of the pipeline of the continuous flow analyzer and too long detection time.

[0004] To meet the needs of industrial production, a filtering and transferring device is designed to effectively improve the filtration effect, and at the same time, shorten the detection time and improve the detection efficiency. Summary of the Utility Model

[0005] A filtering and transferring device used in the detection process of total water-soluble sugars in reconstituted tobacco includes a filtering device main body, a control module, a sampling tube, a filter membrane assembly, a filtrate quantitative collection tube, a closable switch, a continuous flow reaction test tube rack and a continuous flow reaction tube. The control module is arranged on the filtering device main body. There are at least two rows of sampling tubes arranged in an array in the filtering device main body. A filter membrane assembly is rotatably arranged in the sampling tube. The bottom of the sampling tube is communicated with the filtrate quantitative collection tube. A closable switch for controlling the on-off of the communication channel between the sampling tube and the filtrate quantitative collection tube is arranged at the connection between the sampling tube and the filtrate quantitative collection tube. A continuous flow reaction test tube rack is slidably arranged at the bottom of the inner cavity of the filtering device main body. A continuous flow reaction tube adapted to the sampling tube is arranged in an array on the continuous flow reaction test tube rack. The continuous flow reaction tube is arranged below the filtrate quantitative collection tube.

[0006] Optionally, it further includes an extrusion plate, a guide frame, a blocking frame, a guide frame and an elastic member. Guide frames are provided on the symmetric inner walls of the main body of the filtering device. A blocking frame for blocking the bottom of the filtrate quantitative collection tube is slidably connected between the two guide frames. One side of the blocking frame is connected with an extrusion plate that is extrusion-fitted with the longitudinal part of the continuous flow reaction test tube rack. The end of the other side of the blocking frame is slidably fitted with a guide frame installed on the inner wall of the main body of the filtering device. An elastic member is provided between the blocking frame and the guide frame.

[0007] Optionally, spherical limit blocks are elastically connected to both sides of the longitudinal part of the continuous flow reaction test tube rack, and the spherical limit blocks are snap-fitted with the limit grooves provided on the main body of the filtering device.

[0008] Optionally, a membrane flushing assembly for flushing the filter membrane assembly is provided on the main body of the filtering device. The membrane flushing assembly includes an upper sample injection switchable cover, a cleaning agent spray head and a flushing water spray head. The upper sample injection switchable cover is detachably connected to the top of the main body of the filtering device. The upper sample injection switchable cover is provided with cleaning agent spray heads and flushing water spray heads that are the same in number as the filter membrane assemblies. When the upper sample injection switchable cover covers the top of the main body of the filtering device, the cleaning agent spray heads and the flushing water spray heads are located directly above the sample injection tubes.

[0009] Optionally, it further includes a driving assembly for driving the rotation of the filter membrane assembly. The driving assembly includes a connecting shaft and a motor. The filter membrane assemblies in the same row of sample injection tubes are connected by a connecting shaft. The end of the connecting shaft passing through one side of the main body of the filtering device is connected to the output shaft of the motor installed on the main body of the filtering device.

[0010] Optionally, the filter membrane assembly is preferably a polyester membrane, a polyether membrane and a polypropylene membrane with stable chemical properties.

[0011] Optionally, it further includes a waste liquid discharge pipe, a V-shaped pipe and a waste liquid collection box. A V-shaped pipe is communicated between two adjacent sample injection tubes. A waste liquid discharge pipe is communicated between the sample injection tube and the waste liquid collection box. The communication parts of the V-shaped pipe and the waste liquid discharge pipe with the sample injection tube are located above the filter membrane assembly.

[0012] The beneficial effects of the present utility model are as follows: 1. The filtering process of the filtered sample is precisely controlled through parameter setting. The filtrate is filtered through the filter membrane assembly. The on-off of the communication channel between the sample injection tube and the filtrate quantitative collection tube is controlled by a closable switch, so as to realize the function of quantitatively collecting the filtrate, which has the advantages of high filtering efficiency, convenient operation and easy maintenance; by moving the continuous flow reaction test tube rack, the continuous flow reaction test tube rack squeezes the extrusion plate and drives the blocking frame away from the filtrate quantitative collection tube, and the filtrate collected by the filtrate quantitative collection tube drops into the corresponding continuous flow reaction tube, achieving the effect of automatic quantitative transfer of the filtrate and greatly improving the detection work efficiency;

[0013] 2. The motor drives the filter membrane assembly to rotate 180 degrees through a connecting shaft. The cleaning agent and cleaning liquid are respectively sprayed onto the filter membrane assembly through the cleaning agent nozzle and the flushing water nozzle to wash the filter membrane assembly, thereby realizing the cleaning work of the filter membrane assembly and ensuring that the filter membrane device is clean for the next use. Description of the Drawings

[0014] Figure 1 Schematic three-dimensional structure diagram of the present utility model.

[0015] Figure 2 Schematic three-dimensional sectional structure diagram of the main body of the present filtering device and the waste liquid collection box.

[0016] Figure 3 Schematic three-dimensional structure diagram of the filter membrane assembly, connecting shaft and motor of the present utility model.

[0017] Figure 4 Schematic three-dimensional sectional structure diagram of the main body of the filtering device in a separated state of the continuous flow reaction test tube rack, continuous flow reaction tube and the main body of the filtering device of the present utility model.

[0018] Figure 5 Schematic three-dimensional structure diagram of the cooperation of components such as the blocking frame and the guiding frame in a squeezing state between the continuous flow reaction test tube rack and the squeezing plate of the present utility model.

[0019] Figure 6 Schematic three-dimensional structure diagram of the upper end sample injection switchable cover, cleaning agent nozzle and flushing water nozzle of the present utility model.

[0020] Reference numerals in the drawings: 1: Main body of the filtering device; 2: Control panel; 3: Upper end sample injection switchable cover; 31: Cleaning agent nozzle; 32: Flushing water nozzle; 4: Sample injection tube; 5: Filter membrane assembly; 51: Connecting shaft; 52: Motor; 6: Filtrate quantitative collection tube; 61: Closable switch; 7: Continuous flow reaction test tube rack; 71: Continuous flow reaction tube; 72: Spherical limit block; 73: Squeezing plate; 8: Waste liquid discharge tube; 81: V-shaped tube; 9: Waste liquid collection box; 10: Guiding rack; 101: Blocking rack; 102: Guiding frame; 103: Elastic member; 11: Limit groove. Detailed Embodiments

[0021] The present utility model will be further described below in conjunction with specific embodiments. The illustrative embodiments and descriptions herein are used to explain the present utility model, but do not limit the present utility model.

[0022] Embodiment: A filtering and transferring device for the detection of total water-soluble sugar in reconstituted tobacco, as Figure 1 、 Figure 2 and Figure 3As shown in the figure, it includes a filter device main body 1, a control module, a sampling tube 4, a filter membrane assembly 5, a filtrate quantitative collection tube 6, a closable switch 61, a continuous flow reaction test tube rack 7 and a continuous flow reaction tube 71. A control module is provided on the filter device main body 1. The control module includes a control panel 2, a given input element, an output element, etc. There are three rows of sampling tubes 4 arranged in an array inside the filter device main body 1. There are 12 sampling tubes 4 arranged side by side in each row. A filter membrane assembly 5 is rotatably arranged inside the sampling tube 4. The filter membrane assembly 5 is preferably a polyester membrane, a polyether membrane and a polypropylene membrane with stable chemical properties. The filter membrane assembly 5 is the core component inside the filter device main body 1. The filter membrane has the characteristics of corrosion resistance, and its excellent filtering effect can ensure the effective removal of impurities in the filtrate. The bottom of the sampling tube 4 is connected to a filtrate quantitative collection tube 6. The filtrate quantitative collection tube 6 is arranged in a funnel shape. A closable switch 61 for controlling the on-off of the communication channel between the sampling tube 4 and the filtrate quantitative collection tube 6 is provided at the connection between the sampling tube 4 and the filtrate quantitative collection tube 6. A "L"-shaped continuous flow reaction test tube rack 7 is slidably arranged at the bottom of the inner cavity of the filter device main body 1. There are continuous flow reaction tubes 71 adapted to the sampling tubes 4 arranged in an array on the continuous flow reaction test tube rack 7. The continuous flow reaction tubes 71 are arranged below the filtrate quantitative collection tube 6. The continuous flow reaction tubes 71 are used to collect the filtrate in the filtrate quantitative collection tube 6.

[0023] As Figure 4 and Figure 5 shown in the figure, it further includes a pressing plate 73, a guide frame 10, a blocking frame 101, a guide frame 102 and an elastic member 103. Guide frames 10 are provided on the front and rear symmetric inner walls of the filter device main body 1. A blocking frame 101 for blocking the bottom of the filtrate quantitative collection tube 6 is slidably connected between the two guide frames 10. The blocking frame 101 is located below the filtrate quantitative collection tube 6, and the blocking frame 101 is in contact and cooperation with the bottom of the filtrate quantitative collection tube 6. When the blocking frame 101 is located directly below the filtrate quantitative collection tube 6, the blocking frame 101 is used to block the bottom opening of the filtrate quantitative collection tube 6 to achieve the function of quantitatively collecting the filtrate. One side of the blocking frame 101 is connected to a pressing plate 73 that is in extrusion cooperation with the longitudinal part of the continuous flow reaction test tube rack 7. The other end of the other side of the blocking frame 101 is slidably mated with a guide frame 102 installed on the inner wall of the filter device main body 1. An elastic member 103 is provided between the blocking frame 101 and the guide frame 102. The two ends of the elastic member 103 are respectively connected to the blocking frame 101 and the guide frame 102. This setting realizes the precise alignment of the blocking frame 101 and the guide frame 102 and avoids excessive displacement of the blocking frame 101. The elastic member 103 is a compression spring. The pressing plate 73 is squeezed by the continuous flow reaction test tube rack 7 and slides into the filter device main body 1. The elastic member 103 is compressed. The blocking frame 101 slides horizontally away from directly below the filtrate quantitative collection tube 6, releasing the blockage of the bottom opening of the filtrate quantitative collection tube 6. The filtrate in the filtrate quantitative collection tube 6 enters the continuous flow reaction tube 71. Thus, the automatic quantitative transfer of the filtrate is realized.

[0024] As Figure 4 shown, spherical limit blocks 72 are elastically connected to both sides of the longitudinal part of the continuous flow reaction test tube rack 7. A compressible rubber part is arranged between the spherical limit blocks 72 and the continuous flow reaction test tube rack 7. The spherical limit blocks 72 are in snap-fit connection with the limit grooves 11 formed on the filter device main body 1. Through the cooperation of the spherical limit blocks 72 and the limit grooves 11, the function of the continuous flow reaction test tube rack 7 pressing against the pressing plate 73 is realized, and the blocking frame 101 is kept away from the bottom notch of the liquid quantitative collection tube 6, achieving the effect of quickly conveying the filtrate into the continuous flow reaction tube 71 by the quantitative collection tube 6.

[0025] As Figure 2 shown, it further includes a waste liquid discharge pipe 8, an inverted V-shaped pipe 81 and a waste liquid collection box 9. The inverted V-shaped pipe 81 is communicated between two adjacent sample injection pipes 4 in the same row. The arrangement of the inverted V-shaped pipe 81 can prevent the filtrate from flowing into the adjacent sample injection pipe 4 through the inverted V-shaped pipe 81 when the closable switch 61 is in an unclosed state. A waste liquid discharge pipe 8 is communicated between the sample injection pipe 4 near the left inner wall of the filter device main body 1 and the waste liquid collection box 9. The connection parts of the inverted V-shaped pipe 81 and the waste liquid discharge pipe 8 with the sample injection pipe 4 are located above the filter membrane assembly 5.

[0026] During use, set parameters (such as the number of filtrate samples) are given through the control panel 2, and the filter device main body 1 works. The upper sample injection switch cover 3 is opened, and the filtrate sequence is corresponding to the top sample injection ports of the sample injection pipes 4 one by one. The filtrate enters the rapid automatic filtration stage through the sample injection pipes 4 and is filtered layer by layer through the filter membrane assembly 5. The filtered liquid drops into the filtrate quantitative collection tube 6. When the pre-set quantitative value is collected in the filtrate quantitative collection tube 6, the closable switch 61 is driven to close according to the set parameters, thereby closing the communication channel between the sample injection pipe 4 and the filtrate quantitative collection tube 6. The excess waste liquid is discharged into the waste liquid collection box 9 through the waste liquid discharge pipe 8 after the closable switch 61 is closed, realizing the collection of waste liquid; the continuous flow reaction test tube rack 7 slides into the filter device main body 1. When the longitudinal part of the filter device main body 1 presses against the pressing plate 73, after the pressing plate 73 is subjected to the pressing force, the blocking frame 101 slides horizontally along the guide frame 10 and presses the elastic member 103. When the blocking frame 101 is away from the lower opening of the filtrate quantitative collection tube 6, the filtrate collected in the filtrate quantitative collection tube 6 drops downward into the corresponding continuous flow reaction tube 71, thereby realizing the collection of the filtrate, and realizing the transfer of the filtrate into the continuous flow reaction tube 71 for testing, achieving the efficient filtration and transfer of the filtrate.

[0027] As Figure 1 and Figure 6As shown, a membrane flushing assembly for flushing the filter membrane assembly 5 is provided on the main body 1 of the filtering device. The membrane flushing assembly includes an upper sample inlet switchable cover 3, a water tank, a cleaning agent storage tank, a cleaning agent spray head 31, and a flushing water spray head 32. The upper sample inlet switchable cover 3 is detachably connected to the top of the main body 1 of the filtering device. The upper sample inlet switchable cover 3 is provided with cleaning agent spray heads 31 and flushing water spray heads 32 having the same number as the filter membrane assemblies 5. The water tank is communicated with the cleaning agent spray head 31 through a delivery pipe, and a test pump for pumping the liquid in the water tank to the cleaning agent spray head 31 is provided. Similarly, the cleaning agent storage tank is communicated with the cleaning agent spray head 31 through a corresponding delivery pipe. When the upper sample inlet switchable cover 3 covers the top of the main body 1 of the filtering device, the cleaning agent spray head 31 and the flushing water spray head 32 are located directly above the sample inlet pipe 4.

[0028] As Figure 2 and Figure 3 shown, it further includes a driving assembly for driving the filter membrane assembly 5 to rotate. The driving assembly includes a connecting shaft 51 and a motor 52. The filter membrane assemblies 5 in the same row of sample inlet pipes 4 are connected by the connecting shaft 51. The end of the connecting shaft 51 passing through one side of the main body 1 of the filtering device is connected to the output shaft of the motor 52 installed on the main body 1 of the filtering device.

[0029] After the sample filtrate is completely filtered, the motor 52 is driven to work through the control panel 2. The motor 52 drives the filter membrane assembly 5 to rotate 180 degrees through the connecting shaft 51. The water pump in the water tank is driven to work through the control panel 2, so that the flushing liquid and the cleaning agent are sprayed onto the filter membrane assembly 5 through the flushing water spray head 32 and the cleaning agent spray head, thereby realizing the cleaning work of the filter membrane assembly 5 and ensuring that the filter membrane device is clean for the next use.

[0030] Although the present disclosure has been shown and described with reference to specific exemplary embodiments of the present disclosure, those skilled in the art should understand that various changes in form and details can be made to the present disclosure without departing from the spirit and scope of the present disclosure defined by the appended claims and their equivalents. Therefore, the scope of the present disclosure should not be limited to the above embodiments, but should be determined not only by the appended claims but also by the equivalents of the appended claims.

Claims

1. A filtering and transferring device for use in the detection of water-soluble total sugar in reconstituted tobacco leaves, comprising a filtering device body (1), a control module, a sampling tube (4) and a filter membrane assembly (5), wherein the filtering device body (1) is provided with a control module, the filtering device body (1) has an array of at least two rows of sampling tubes (4), and a filter membrane assembly (5) is rotatably arranged in the sampling tube (4), wherein the filtering device body (1) is provided with a control module, ... The invention also comprises a filtrate quantitative collection tube (6), a closable switch (61), a continuous flow reaction test tube rack (7) and a continuous flow reaction tube (71); the bottom of the sample injection tube (4) is connected to the filtrate quantitative collection tube (6); a closable switch (61) for controlling the opening and closing of the communication channel between the sample injection tube (4) and the filtrate quantitative collection tube (6) is arranged at the connection between the sample injection tube (4) and the filtrate quantitative collection tube (6); a continuous flow reaction test tube rack (7) is slidably arranged at the bottom of the inner cavity of the filtering device body (1); a continuous flow reaction tube (71) adapted to the sample injection tube (4) is arranged on the continuous flow reaction test tube rack (7); and the continuous flow reaction tube (71) is arranged below the filtrate quantitative collection tube (6).

2. A filtering and transferring device for detecting water-soluble total sugar in reconstituted tobacco leaves according to claim 1, characterized in that: The filter device also comprises an extrusion plate (73), a guide frame (10), a blocking frame (101), a guide frame (102) and an elastic member (103); the guide frames (10) are arranged on two symmetrical inner walls of the filter device body (1); a blocking frame (101) for blocking the bottom of the filtrate quantitative collection tube (6) is slidably connected between the two guide frames (10); one side of the blocking frame (101) is connected to an extrusion plate (73) which is extruded and matched with the longitudinal part of the continuous flow reaction test tube rack (7); the end of the other side of the blocking frame (101) is slidably matched with the guide frame (102) installed on the inner wall of the filter device body (1); and an elastic member (103) is arranged between the blocking frame (101) and the guide frame (102).

3. A filtering and transferring device for detecting water-soluble total sugar in reconstituted tobacco leaves according to claim 2, characterized in that: Spherical stop blocks (72) are elastically connected to both sides of the longitudinal portion of the continuous flow reaction test tube rack (7), and the spherical stop blocks (72) are snap-fitted with stop grooves (11) provided on the filtering device body (1).

4. A filtering and transferring device for detecting water-soluble total sugar in reconstituted tobacco leaves according to claim 3, characterized in that: A membrane flushing assembly for flushing a filter membrane assembly (5) is arranged on a filter device body (1), and the membrane flushing assembly comprises an upper sample injection switchable cover (3), a cleaning agent nozzle (31) and a flushing water nozzle (32). The upper sample injection switchable cover (3) is detachably connected to the top of the filter device body (1), and the upper sample injection switchable cover (3) is provided with a number of cleaning agent nozzles (31) and flushing water nozzles (32) that is the same as the number of the filter membrane assembly (5). When the upper sample injection switchable cover (3) is covered on the top of the filter device body (1), the cleaning agent nozzle (31) and the flushing water nozzle (32) are located directly above the injection tube (4).

5. A filtering and transferring device for detecting water-soluble total sugar in reconstituted tobacco leaves according to claim 4, characterized in that: It also includes a driving assembly for driving the filter membrane assembly (5) to rotate, the driving assembly including a connecting shaft (51) and a motor (52), the filter membrane assemblies (5) in the same row of sample injection tubes (4) are connected via the connecting shaft (51), the connecting shaft (51) passes through the end of one side of the filter device body (1) and is connected to the output shaft of the motor (52) installed on the filter device body (1).

6. A filtering and transferring device for use in the detection of water-soluble total sugar in reconstituted tobacco leaves according to claim 5, characterized in that: The filter membrane component (5) is preferably a polyester membrane, a polyether membrane or a polypropylene membrane which are chemically stable.

7. A filtering and transferring device for use in the detection of water-soluble total sugar in reconstituted tobacco leaves according to claim 6, characterized in that: It also comprises a waste liquid discharge pipe (8), a V-shaped pipe (81) and a waste liquid collection box (9); the V-shaped pipe (81) is connected between two adjacent sample injection pipes (4); the waste liquid discharge pipe (8) is connected between the sample injection pipe (4) and the waste liquid collection box (9); and the connection point between the V-shaped pipe (81) and the waste liquid discharge pipe (8) and the sample injection pipe (4) is located above the filter membrane assembly (5).

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