CN112710580A - On-line detection device for distribution uniformity of paper-making reconstituted tobacco pulp - Google Patents
On-line detection device for distribution uniformity of paper-making reconstituted tobacco pulp Download PDFInfo
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- CN112710580A CN112710580A CN202011519916.XA CN202011519916A CN112710580A CN 112710580 A CN112710580 A CN 112710580A CN 202011519916 A CN202011519916 A CN 202011519916A CN 112710580 A CN112710580 A CN 112710580A
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- 241000208125 Nicotiana Species 0.000 title claims abstract description 39
- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims abstract description 39
- 238000001514 detection method Methods 0.000 title claims abstract description 20
- 238000009826 distribution Methods 0.000 title claims abstract description 20
- 238000010790 dilution Methods 0.000 claims abstract description 31
- 239000012895 dilution Substances 0.000 claims abstract description 31
- 239000002002 slurry Substances 0.000 claims abstract description 27
- 238000002156 mixing Methods 0.000 claims abstract description 24
- 238000005070 sampling Methods 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 19
- 238000004537 pulping Methods 0.000 claims abstract description 13
- 230000001105 regulatory effect Effects 0.000 claims abstract description 11
- 238000000227 grinding Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 48
- 238000004140 cleaning Methods 0.000 claims description 38
- 239000007788 liquid Substances 0.000 claims description 19
- 230000007246 mechanism Effects 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 15
- 238000005303 weighing Methods 0.000 claims description 10
- 238000007865 diluting Methods 0.000 claims description 8
- 239000000706 filtrate Substances 0.000 claims description 7
- 238000007603 infrared drying Methods 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 238000011156 evaluation Methods 0.000 abstract description 9
- 239000000835 fiber Substances 0.000 description 11
- 238000005259 measurement Methods 0.000 description 8
- 239000004744 fabric Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000012216 screening Methods 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 235000019504 cigarettes Nutrition 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 229920001131 Pulp (paper) Polymers 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 235000019505 tobacco product Nutrition 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/04—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/14—Forming reconstituted tobacco products, e.g. wrapper materials, sheets, imitation leaves, rods, cakes; Forms of such products
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- General Health & Medical Sciences (AREA)
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Abstract
The invention relates to an on-line detection device for the slurry distribution uniformity of paper-making reconstituted tobacco, which comprises a sampling system, a mixing dilution metering system and a measuring system; the sampling system comprises an automatic sampling device, and an inlet of the automatic sampling device is connected with an outlet pipeline of a last grinding machine in the reconstituted tobacco pulping process; the mixing dilution metering system comprises a mixing dilution tank, a centrifugal pump, a cache tank, an electromagnetic flowmeter and a pneumatic regulating valve; the measuring system comprises a first measuring chamber, a second measuring chamber, a third measuring chamber, a fourth measuring chamber and a vacuum pump which are identical in structure. The invention realizes the on-line detection of the distribution of each component of the pulp in the production process of the paper-making reconstituted tobacco, provides data support for the evaluation of the uniformity of the pulp distribution, improves the scientificity and reliability of the evaluation of the pulp performance, solves the common problem troubling the industry, provides a reference for the automatic control, lean production and fine production of the pulping process, and has important significance for guiding the production practice.
Description
Technical Field
The invention belongs to the technical field of reconstituted tobacco production, and particularly relates to an on-line detection device for the distribution uniformity of paper-making reconstituted tobacco slurry.
Background
In the production process of the paper-making reconstituted tobacco, the pulping technology is the basis of papermaking of the paper-making reconstituted tobacco substrate, and the quality of the pulp obtained in the pulping process directly influences the stability of the production process and the quality of the paper-making reconstituted tobacco product. The major special project of the reconstituted tobacco in 2012 is implemented, equipment and process technology of domestic paper-making process reconstituted tobacco enterprises are rapidly renovated, but a certain gap exists between the major special project and the refined production. Although the method for evaluating the performance of the pulp in the paper making industry has guiding significance to a certain extent, the tobacco raw material has larger difference from the traditional wood pulp in terms of raw material components and fiber forms, the content of fiber cells is lower than that of wood, the fiber is shorter, the variety of miscellaneous cells is various, particularly, the broken tissue of tobacco fragments is more, the fine components are high, the extremely long fiber cells hardly appear, and the tobacco fragments are mostly present in the pulp in a sheet shape or a block shape, so the method for evaluating the tobacco pulp by using the pulp with higher fiber content in the paper making industry has certain limitation. Although the beating degree is detected on line at present, the evaluation in the industry is different, and the main reason is that the tobacco pulp and the traditional wood pulp have great difference, so that the on-line detection equipment is influenced by various factors such as raw materials, pulping process, level control and the like.
The fiber screening is mainly used for grading and screening pulp, namely, a certain amount of pulp is diluted to a suspension with a certain concentration, the suspension passes through a plurality of screens with different screen hole sizes under a certain water flow speed, small and short fibers can flow into the next stage through the screen holes, thick fibers are stopped on the screen plates, and the fiber ratio of each mesh of the screened pulp is calculated according to the pulp quantity remained on each screen plate. Because the screen mesh is a square hole, not only fibrous components can be screened according to different fiber lengths, but also sheet-shaped and block-shaped components can be screened according to the sizes of the fibrous components and the sheet-shaped and block-shaped components, so that the thickness and the fineness of the pulp and the proportion of the long, medium and short components at each level are reflected more visually, and compared with other pulp performance evaluation methods in the papermaking industry, the method has more convincing effect on the evaluation of the tobacco pulp with complex components. For tobacco slurry, the coarse component is beneficial to the bulk of the substrate, the bulk of the substrate is an important basis of the coating rate of the paper-making reconstituted tobacco, the coating rate directly influences the chemical index and the sensory property of the product when the paper-making reconstituted tobacco is used for cigarettes, and the bulk is also an important factor influencing the filling value of the paper-making reconstituted tobacco, so that the weight, the hardness, the suction resistance, the combustion performance, the tar release amount and the like of the cigarette when the paper-making reconstituted tobacco is used for the cigarettes are influenced; the thinner components are beneficial to the tensile strength of the substrate, and the tensile strength of the substrate directly influences the operation stability of a paper machine, so that the proportion of each component of the tobacco pulp is determined, and the components are reasonably distributed by combining the equipment parameters of the pulping process and the process optimization, and the method has important significance for improving the physical and chemical properties of the paper-making reconstituted tobacco products. However, the existing fiber screening equipment is only limited to off-line detection in a laboratory, the steps of sample preparation and screening are complex, the moisture of a sample to be detected needs to be measured firstly, component slurry at each level needs to be manually collected, dried and weighed after screening is completed, the time consumption is long, and part of enterprises use the equipment less frequently or even abandon the equipment because the detection process is too complex and a small amount of data lacks guidance significance.
Disclosure of Invention
The invention aims to provide an on-line detection device for the distribution uniformity of paper-making reconstituted tobacco slurry, which aims to solve the problems of single performance evaluation mode, poor applicability, low accuracy, difficulty in ensuring the stability by means of empirical evaluation and the like of industrial slurry.
The invention is realized by the following technical scheme:
an on-line detection device for the slurry distribution uniformity of paper-making reconstituted tobacco comprises a sampling system, a mixing dilution metering system and a measuring system;
the sampling system comprises an automatic sampling device, and an inlet of the automatic sampling device is connected with an outlet pipeline of a last grinding machine in the reconstituted tobacco pulping process;
the mixing dilution metering system comprises a mixing dilution tank, a centrifugal pump, a cache tank, an electromagnetic flowmeter and a pneumatic regulating valve;
the mixing and diluting tank is provided with a slurry inlet, a dilution water inlet and a slurry outlet, the slurry inlet is connected with an outlet of the automatic sampling device through a pipeline, the dilution water inlet is connected with a water source of dilution water through a pipeline, the slurry outlet is connected with an inlet of a centrifugal pump through a pipeline, an outlet of the centrifugal pump is connected with a feed inlet of the buffer tank through a pipeline, and a pneumatic regulating valve and an electromagnetic flowmeter are arranged on the pipeline between the outlet of the centrifugal pump and the feed inlet of the buffer tank;
the measuring system comprises a first measuring chamber, a second measuring chamber, a third measuring chamber, a fourth measuring chamber and a vacuum pump which are identical in structure;
the first measuring chamber, the second measuring chamber, the third measuring chamber and the fourth measuring chamber are connected in series, a feed inlet of the first measuring chamber is connected with a discharge outlet of the cache tank through a pipeline, a discharge outlet of the fourth measuring chamber corresponds to the filtrate collecting tank, and the vacuum pump is respectively connected with the first measuring chamber, the second measuring chamber, the third measuring chamber and the fourth measuring chamber through pipelines.
Preferably, the mixing and diluting tank is provided with a concentration meter and a first liquid level meter, and the buffer tank is provided with a second liquid level meter.
Preferably, the mixing and diluting tank and the cache tank are both provided with vertical stirring mechanisms.
Preferably, a first pneumatic switch valve is arranged on a pipeline connected with a slurry outlet of the mixing and diluting tank, and a second pneumatic switch valve is arranged on a pipeline connected with a discharge outlet of the buffer tank.
Preferably, each measuring chamber of the measuring system comprises an upper end cover, a cylinder body, a bottom screen, a lower end cover and a weighing module, the upper end cover, the cylinder body and the lower end cover form a measuring chamber shell, the bottom screen can be moved out of the measuring chamber shell, a measuring chamber feed port, an infrared drying device, a vertical stirring mechanism and an automatic spraying device are arranged on the upper end cover, a measuring chamber liquid level meter is arranged on the cylinder body, a vacuum port is arranged on the lower end cover and connected with the vacuum pump through a pipeline, and the weighing module is matched with the bottom screen.
Preferably, the weighing module is in electrical signal connection with a computer system.
Preferably, the on-line detection device further comprises a cleaning system, wherein the cleaning system comprises an air nozzle and a cleaning water nozzle, the air nozzle is connected with compressed air through a pipeline, and the cleaning water nozzle is connected with a cleaning water source through a pipeline.
Preferably, the cleaning water in the cleaning water source is medium-pressure clean water, the pressure is 6-8bar, and the air nozzle and the cleaning water nozzle are both arranged on the bottom screen.
The invention has the beneficial effects that:
the invention realizes the on-line detection of the distribution of each component of the pulp in the production process of the paper-making reconstituted tobacco, provides data support for the evaluation of the uniformity of the pulp distribution, improves the scientificity and reliability of the evaluation of the pulp performance, solves the common problem troubling the industry, provides a reference for the automatic control, lean production and fine production of the pulping process, and has important significance for guiding the production practice.
Drawings
FIG. 1 is a schematic view of an on-line slurry distribution uniformity detection apparatus according to the present invention;
FIG. 2 is a schematic view of a measuring chamber;
fig. 3 is a sectional view a-a of fig. 2.
Description of the reference numerals
1. A mixing dilution tank, 2, a concentration meter, 3, an outlet pipeline of a last mill in a reconstituted tobacco pulping process, 4, an automatic sampling device, 5, a vertical stirring mechanism, 6, dilution water, 7, a first liquid level meter, 8, a first pneumatic switch valve, 9, a maintenance hand valve, 10, a centrifugal pump, 11, a pneumatic control valve, 12, an electromagnetic flowmeter, 13, a vacuum pump, 14, a cache tank, 15, a second liquid level meter, 16, a second pneumatic switch valve, 17, a vertical stirring mechanism, 18, a first measuring chamber, 19, a first cleaning device, 20, a second measuring chamber, 21, a second cleaning device, 22, a third measuring chamber, 23, a third cleaning device, 24, a fourth measuring chamber, 25, a fourth cleaning device, 26, a filtrate collecting tank, 27, a ground drain, 28, a vertical stirring mechanism, 29, an automatic spraying device, 30, an infrared drying device, 31, a third cleaning device, a fourth cleaning device, 25, a fourth cleaning device, a filter collecting tank, a filter, solenoid valve, 32, weighing module, 33, bracket, 34, bottom screen, 35, air cylinder, 36, measuring chamber liquid level meter, 37, washing water collecting tank, 38, washing water outlet.
Detailed Description
The technical solutions of the present invention are described in detail below by examples, and the following examples are only exemplary and can be used only for explaining and explaining the technical solutions of the present invention, but not construed as limiting the technical solutions of the present invention.
As shown in figures 1 to 3, the invention adopts the technical scheme that an on-line detection device for the distribution uniformity of the sizing agent is arranged on an outlet pipeline 3 of a last grinding machine in the pulping process of the paper-making reconstituted tobacco.
The on-line detection device comprises a sampling system, a mixing dilution metering system, a measuring system and a cleaning system.
As shown in figure 1, the sampling system comprises an automatic sampling device, and an inlet of the automatic sampling device is connected with an outlet pipeline of a last grinding machine in the reconstituted tobacco pulping process.
The mixing dilution metering system comprises a mixing dilution tank 1, a centrifugal pump 10, a buffer tank 14, an electromagnetic flowmeter 12 and a pneumatic regulating valve 11.
The mixing and diluting tank 1 is a closed tank body, a slurry inlet, a vertical stirring mechanism 5, a dilution water inlet and a slurry outlet at the bottom of the tank body are sequentially arranged on an upper end cover of the tank body from left to right, and a liquid level meter 7 and a concentration meter 2 are arranged on two sides above the slurry outlet. The outlet of the automatic sampling device 4 is connected with the slurry inlet of the mixing dilution tank through a pipeline, the dilution water inlet is connected with the water source of the dilution water through a pipeline, a pneumatic regulating valve is arranged on the pipeline connected with the dilution water inlet to control the water adding amount of the dilution water, the concentration of the slurry diluted in the dilution tank reaches 1 per thousand or other set values, and a first pneumatic switch valve 8 is arranged on the pipeline connected with the slurry outlet.
The liquid level meter, the concentration meter, the motor of the vertical mixer and the pneumatic regulating valve on the dilution water pipeline are all connected with the controller through electric signals.
The slurry outlet is connected with the inlet of the centrifugal pump 10 through a pipeline, the outlet of the centrifugal pump is connected with the feed inlet of the cache tank 14 through a pipeline, a pneumatic regulating valve 11 and an electromagnetic flowmeter 12 are arranged on the pipeline between the outlet of the centrifugal pump and the feed inlet of the cache tank, and a centrifugal pump motor controller, the pneumatic regulating valve and the electromagnetic flowmeter are all in electric signal connection with a controller. The centrifugal pump pumps the slurry with the concentration meeting the set requirement to the cache tank, and when the accumulated flow of the electromagnetic flowmeter reaches the set flow, the controller controls the pneumatic regulating valve to be closed, and the centrifugal pump stops running.
The buffer tank 14 is a closed tank body, a second liquid level meter 15 is arranged on the buffer tank, a vertical stirring mechanism 17 (stirrer) is arranged above the buffer tank, a discharge hole of the buffer tank is arranged at the bottom of the buffer tank, the rotating speed of the vertical stirring mechanism is 750r/min, when the liquid level of the buffer tank is larger than or equal to 5%, the vertical stirring mechanism runs at a preset rotating speed, and when the liquid level in the buffer tank is smaller than 5%, the vertical stirring mechanism stops running. And a second pneumatic switch valve 16 is arranged on a pipeline connected with a discharge port of the buffer tank, and after the centrifugal pump stops running, the time is set in a delayed manner, in the embodiment, the time is delayed for 10 seconds, the second pneumatic switch valve is opened, and the slurry in the buffer tank sequentially enters the measuring system. The vertical stirring mechanism, the second liquid level meter and the second pneumatic switch valve are all in electric signal connection with the controller.
As shown in fig. 1 to 3, the measurement system includes a first measurement chamber 18, a second measurement chamber 20, a third measurement chamber 22, a fourth measurement chamber 24 and a vacuum pump 13 having the same structure. The first measuring chamber, the second measuring chamber, the third measuring chamber and the fourth measuring chamber are connected in series, namely, the discharge port of the first measuring chamber is connected with the feed port of the second measuring chamber through a pipeline, the discharge port of the second measuring chamber is connected with the feed port of the third measuring chamber through a pipeline, the discharge port of the third measuring chamber is connected with the feed port of the fourth measuring chamber through a pipeline, the feed port of the first measuring chamber is connected with the discharge port of the buffer tank through a pipeline, and the discharge port of the fourth measuring chamber corresponds to the filtrate collecting tank 26.
The four measuring chambers have the same structure and respectively comprise an upper end cover, a cylinder body, a bottom screen 34, a lower end cover and a weighing module 32, wherein the upper end cover, the cylinder body and the lower end cover form a measuring chamber shell, small holes which are uniformly distributed are formed in the upper surface of the lower end cover, a vacuum port is formed in the side surface of the lower end cover and is connected with a vacuum pump 13 through a pipeline. The bottom of the lower end cover is provided with a discharge hole. A measuring chamber liquid level meter 36 is arranged on the cylinder body; the upper end cover is provided with a measuring chamber feeding hole, an infrared drying device 30, a vertical stirring mechanism 28 and an automatic spraying device 29, and the infrared drying device 30, the vertical stirring mechanism, the automatic spraying device, the vacuum pump and the measuring chamber liquid level meter are all in electric signal connection with the controller.
The mesh diameters of the bottom screens in the measuring chambers are different.
When the liquid level in each measuring chamber is more than 3 percent and less than 10 percent, the automatic spraying system cleans the scum on the inner wall of the tank body by using as little water as possible (the amount of water for cleaning the inner wall of the tank body is enough, and the specific amount is not limited), thereby improving the accuracy of the detection result, simultaneously starting a vacuum system of each measuring chamber, filtering out residual water, when the liquid level of each measuring chamber is less than 3 percent, the infrared drying device is started to dry the materials in the measuring chambers to a constant weight, the weighing modules in the measuring chambers feed back data to the computing system to compute the ratio of the components of the materials in the measuring chambers, the computed result is displayed on a remote operation interface of a pulping process of a production line, the accumulated flow of the electromagnetic flow meter is automatically cleared to be 0 after each measurement, the weight of the weighing modules in the measuring chambers is automatically cleared to be 0, and the formula for computing the ratio of the components of the materials in the measuring chambers is shown as formula I.
The formula I is as follows:
in the formula:
A1、A2、A3、A4the first, second, third and fourth measuring chambers respectively account for the components, and the unit is;
M1、M2、M3、M4the mass of the dried materials in the unit of g is measured by a first measuring chamber, a second measuring chamber, a third measuring chamber and a fourth measuring chamber respectively;
q is the accumulated flow of the electromagnetic flowmeter during single measurement, and the unit is l/min.
As shown in figure 1, the on-line detection device further comprises a cleaning system, wherein the cleaning system comprises an air nozzle and a cleaning water nozzle, the air nozzle is connected with compressed air through a pipeline, and the cleaning water nozzle is connected with a cleaning water source through a pipeline.
When the screen is cleaned, a small amount of dilution water is injected into the mixing dilution tank to clean the whole system. The filtrate collecting tank is used for collecting filtrate in the fourth measuring chamber, and a drain outlet is formed in the lowest point in the filtrate collecting tank and is converged with the cleaning water collecting tanks of the measuring chambers through drain pipes and then discharged into a trench.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. An on-line detection device for the slurry distribution uniformity of paper-making reconstituted tobacco is characterized by comprising a sampling system, a mixing dilution metering system and a measuring system;
the sampling system comprises an automatic sampling device, and an inlet of the automatic sampling device is connected with an outlet pipeline of a last grinding machine in the reconstituted tobacco pulping process;
the mixing dilution metering system comprises a mixing dilution tank, a centrifugal pump, a cache tank, an electromagnetic flowmeter and a pneumatic regulating valve;
the mixing and diluting tank is provided with a slurry inlet, a dilution water inlet and a slurry outlet, the slurry inlet is connected with an outlet of the automatic sampling device through a pipeline, the dilution water inlet is connected with a water source of dilution water through a pipeline, the slurry outlet is connected with an inlet of a centrifugal pump through a pipeline, an outlet of the centrifugal pump is connected with a feed inlet of the buffer tank through a pipeline, and a pneumatic regulating valve and an electromagnetic flowmeter are arranged on the pipeline between the outlet of the centrifugal pump and the feed inlet of the buffer tank;
the measuring system comprises a first measuring chamber, a second measuring chamber, a third measuring chamber, a fourth measuring chamber and a vacuum pump which are identical in structure;
the first measuring chamber, the second measuring chamber, the third measuring chamber and the fourth measuring chamber are connected in series, a feed inlet of the first measuring chamber is connected with a discharge outlet of the cache tank through a pipeline, a discharge outlet of the fourth measuring chamber corresponds to the filtrate collecting tank, and the vacuum pump is respectively connected with the first measuring chamber, the second measuring chamber, the third measuring chamber and the fourth measuring chamber through pipelines.
2. The device for detecting the distribution uniformity of the paper-making reconstituted tobacco pulp according to claim 1, wherein a concentration meter and a first liquid level meter are arranged on the mixing and diluting tank, and a second liquid level meter is arranged on the buffer tank.
3. The on-line detection device for the distribution uniformity of the paper-making reconstituted tobacco pulp according to claim 1, wherein vertical stirring mechanisms are arranged on the mixing dilution tank and the cache tank.
4. The on-line detection device for the distribution uniformity of the paper-making reconstituted tobacco pulp according to claim 1, characterized in that a first pneumatic switch valve is arranged on a pipeline connected with a pulp outlet of the mixing and diluting tank, and a second pneumatic switch valve is arranged on a pipeline connected with a discharge outlet of the buffer tank.
5. The device for detecting the distribution uniformity of the paper-making reconstituted tobacco pulp according to claim 1, wherein each measuring chamber of the measuring system comprises an upper end cover, a cylinder, a bottom screen, a lower end cover and a weighing module, the upper end cover, the cylinder and the lower end cover form a measuring chamber shell, the bottom screen can be moved out of the measuring chamber shell, a measuring chamber feed port, an infrared drying device, a vertical stirring mechanism and an automatic spraying device are arranged on the upper end cover, a measuring chamber liquid level meter is arranged on the cylinder, a vacuum port is arranged on the lower end cover and connected with the vacuum pump through a pipeline, and the weighing module is matched with the bottom screen.
6. The device for detecting the distribution uniformity of the paper-making reconstituted tobacco pulp according to claim 5, wherein the weighing module is in electrical signal connection with a computer system.
7. The device for detecting the distribution uniformity of the paper-making reconstituted tobacco pulp according to claim 5, further comprising a cleaning system, wherein the cleaning system comprises an air nozzle and a cleaning water nozzle, the air nozzle is connected with compressed air through a pipeline, and the cleaning water nozzle is connected with a cleaning water source through a pipeline.
8. The device for detecting the distribution uniformity of the paper-making reconstituted tobacco pulp according to claim 7, wherein the cleaning water in the cleaning water source is medium-pressure clean water with the pressure of 6-8bar, and the air nozzle and the cleaning water nozzle are both arranged on the bottom screen.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114544446A (en) * | 2022-03-03 | 2022-05-27 | 河南卷烟工业烟草薄片有限公司 | Vertical tobacco pulp component detection system and pulp detection method |
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