CN215124263U - Paper-making method reconstituted tobacco dip-coating type coating liquid physical index control device - Google Patents
Paper-making method reconstituted tobacco dip-coating type coating liquid physical index control device Download PDFInfo
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- CN215124263U CN215124263U CN202120656152.2U CN202120656152U CN215124263U CN 215124263 U CN215124263 U CN 215124263U CN 202120656152 U CN202120656152 U CN 202120656152U CN 215124263 U CN215124263 U CN 215124263U
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Abstract
The utility model provides a paper-making reconstituted tobacco dip-coating type coating liquid physical index control device; comprises a coating mechanism and a recovery mechanism; the inlet of a coating liquid on-site tank of the coating mechanism is communicated with a coating liquid source, the outlet of the coating liquid on-site tank is communicated with the inlet of a tank bottom screw pump, and the outlet of the tank bottom screw pump is connected with the inlet of a feeding groove through a liquid conveying pipeline; the inlet of the three-way stop valve of the recovery mechanism is communicated with the outlet of the recovery tank of the coating mechanism, two outlets of the three-way stop valve are connected with the coating liquid in-situ tank and the rectangular sieve, the rectangular sieve is communicated with the inlet of the coating liquid recovery tank through a viscometer, the coating liquid recovery tank is communicated with the discharging screw pump, the discharging screw pump is communicated with a clear water source through an adjusting pipeline, the discharging screw pump is communicated with the coating liquid recovery tank through a return pipeline, and the discharging screw pump is communicated with a transfusion pipeline through a mixing pipeline. The physical indexes of the coating liquid on the coating machine are stabilized by ensuring the coating liquid in the coating machine to flow and flow back fully to the maximum extent.
Description
Technical Field
The utility model belongs to the technical field of paper-making process reconstituted tobacco, in particular to paper-making process reconstituted tobacco dip-coating formula coating liquid physical index controlling means.
Background
In the production of paper-making reconstituted tobacco, tobacco stems, tobacco powder and the like generated in the processes of threshing and redrying, cigarette production and the like are taken as raw materials, the raw materials are soaked, solid-liquid separation is carried out to obtain tobacco extract, the liquid phase is subjected to multi-layer purification and concentration and then is subjected to blending of essence and spice to finally form coating liquid, a sheet base formed by a coating system through paper making continuously passes through a coating liquid groove in a coating machine, and the coating liquid quantitatively enters the sheet base to finish coating. The coating process is a continuous production process, the film base continuously passes through a coating system trough, and fine fibers on the film base can be separated from the coating liquid, so that the viscosity of the coating liquid is continuously increased, the concentration of the coating liquid is changed, and the coating rate is fluctuated.
However, the following problems exist in the prior art: 1. the flow of the returned coating liquid and the supplied material of the coating liquid preparation tank on the coating machine is unstable, the new and old coating liquids are mixed in the coating liquid on-site tank, and the on-site tank is externally connected with a horizontal screw machine for purification treatment, so that the method causes the large fluctuation of the physical indexes such as the concentration, the viscosity and the like of the coating liquid in the coating liquid on-site tank; 2. the recovery coating liquid after handling directly gets into in-situ jar of coating liquid, can't ensure the use proportion of recovery liquid and new coating liquid in the concrete use, and secondly the physical index of coating liquid is stable mainly for the physical index of the coating liquid on the control coating machine, and the coating liquid volume is great on the coating machine in dip-coating formula coating process, does not clearly describe the control method to above-mentioned liquid in this utility model.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a rational in infrastructure, on-line control coating liquid physical indicator's paper-making process reconstituted tobacco dip-coating formula coating liquid physical indicator controlling means.
In order to solve the technical problem, the utility model provides a paper-making reconstituted tobacco dip-coating type coating liquid physical index control device;
comprises a coating mechanism and a recovery mechanism;
the coating mechanism comprises a tank bottom screw pump, a coating liquid in-place tank, a recovery tank, at least one feeding tank and two coating rollers, wherein the inlet of the coating liquid in-place tank is communicated with a coating liquid source, the outlet of the coating liquid in-place tank is communicated with the inlet of a tank bottom screw pump, and the outlet of the tank bottom screw pump is connected with the inlet of the feeding tank through a liquid conveying pipeline;
the recovery mechanism comprises a three-way stop valve, a rectangular sieve, a viscometer, a coating liquid recovery tank, a discharge screw pump, a first flowmeter, a second flowmeter and a first concentration meter;
the inlet of the three-way stop valve is communicated with the outlet of the recovery tank of the coating mechanism, the first outlet of the three-way stop valve is communicated with the local tank of the coating liquid, the second outlet of the three-way stop valve is connected with the inlet of the rectangular sieve, the outlet of the rectangular sieve is communicated with the inlet of the coating liquid recovery tank through a viscometer, the outlet of the coating liquid recovery tank is communicated with the inlet of the discharging screw pump, the outlet of the discharging screw pump is communicated with a clear water source through an adjusting pipeline, an adjustable throttle valve and a second flowmeter are arranged on the adjusting pipeline, the outlet of the discharging screw pump is communicated with the inlet of the coating liquid recovery tank through a return pipeline, the second stop valve and a first concentration meter are arranged on the return pipeline, the outlet of the discharging screw pump is communicated with a liquid conveying pipeline of the coating mechanism through a mixing pipeline, and a first stop valve and a first flowmeter are arranged on the mixing pipeline.
As the optimization of the paper-making reconstituted tobacco dip-coating type coating liquid physical index control device, a third stop valve is further arranged on a pipeline between a viscometer in the recovery mechanism and an inlet of a coating liquid recovery tank, the pipeline between the viscometer and the third stop valve is communicated with the outside through a cleaning pipeline, and a fourth stop valve is arranged on the cleaning pipeline.
As the optimization of the paper-making reconstituted tobacco dip-coating type coating liquid physical index control device, the coating mechanism further comprises a dip-coating bin, the feeding groove is arranged on the upper side of the dip-coating bin, an opening is formed in the side wall of the dip-coating bin, the two coating rollers are arranged at the opening of the dip-coating bin, the edge of the opening of the dip-coating bin is sealed with the two coating rollers, a gap between the two coating rollers is provided with a position through which only the tobacco substrate passes, the liquid level of the coating liquid in the dip-coating bin is higher than the position of the gap between the two coating rollers, and the recovery groove is communicated with the bottom of the dip-coating bin.
As the optimization of the paper-making reconstituted tobacco dip-coating type coating liquid physical index control device, the coating mechanism comprises two feeding grooves, the two feeding grooves are both arranged at the upper side of the dip-coating bin, the trend of the feeding grooves is consistent with the axial direction of the coating roller, the inlets of the feeding grooves are arranged at the bottom, and the upper end surfaces of the feeding grooves are provided with openings.
Preferably, the paper-making reconstituted tobacco dip-coating type coating liquid physical index control device is characterized in that a second concentration meter is further installed on the liquid conveying pipeline.
After the structure is adopted, the coating liquid enters the tank body from the bottoms of the two feeding tanks, the feeding tanks adopt an overflow feeding design, and the openings of the two feeding tanks have different heights so as to control the coating liquid to overflow into the coating machine only from one end as required; the reflux groove is arranged at the lower part of the dip-coating bin, and ensures that the coating liquid on the coating machine flows back to the coating liquid recovery tank;
the physical index control device for the dip-coating type coating liquid for the reconstituted tobacco by the papermaking method ensures that the coating liquid enters the whole paper web range and uniformly enters the coating mechanism in an overflow mode, avoids the conditions that the flow of the near pump end of a pipeline is larger, the flow of the backflow section of a far pump is small and even approaches zero, which often occur in the existing feeding system, and then controls the liquid level on the coating mechanism and ensures the backflow of the coating liquid by adopting an overflow port mode on the existing coating mechanism.
Drawings
FIG. 1 is a schematic diagram of an embodiment of a paper-making reconstituted tobacco dip-coating type coating liquid physical index control device.
FIG. 2 is a front view of a coating mechanism in an embodiment of the paper-making process reconstituted tobacco dip-coating type coating liquid physical index control device.
Fig. 3 is a cross-sectional view of fig. 2.
Detailed Description
As shown in fig. 1 to 3
The physical index control device of the dip-coating type coating liquid for the reconstituted tobacco by the papermaking method comprises a coating mechanism 1 and a recovery mechanism.
The coating mechanism 1 includes a dip coating bin 1a, a tank bottom screw pump 1g, a coating liquid in-place tank 1f, a recovery tank 1e, two feed tanks 1d, and two coating rolls 1 b.
The cross-sectional shape of the dip-coating bin 1a is generally triangular, the left side wall of the dip-coating bin 1a is provided with an opening, two coating rollers 1b are arranged at the opening of the dip-coating bin 1a, the two coating rollers 1b are sequentially distributed up and down, the axial direction of the coating rollers 1b is consistent with the front and back direction, two ends of the shaft of the coating roller 1b are supported on the front and back side walls of the dip-coating bin 1a, the edge of the opening of the dip-coating bin 1a and the two coating rollers 1b are sealed through a sealing strip 1c, and a gap between the two coating rollers 1b is only used for a tobacco substrate to pass through.
The feed chute 1d is welded on the dip-coating bin 1a, the feed chute 1d is arranged on the upper side of the dip-coating bin 1a, the length direction of the feed chute 1d is consistent with the axial direction of the coating rollers 1b, the inlet of the feed chute 1d is arranged at the bottom, the upper end surface of the feed chute 1d is opened, coating liquid enters the dip-coating bin 1a from the feed chute 1d, the coating liquid is stored in the space between the inner wall of the dip-coating bin 1a and the side walls of the two coating rollers 1b, the liquid level of the coating liquid in the dip-coating bin 1a is higher than the gap position between the two coating rollers 1b, and the recovery tank 1e is communicated with the bottom of the dip-coating bin 1 a.
The inlet of the coating liquid in-situ tank 1f is communicated with a coating liquid source, the outlet of the coating liquid in-situ tank 1f is communicated with the inlet of the tank bottom screw pump 1g, and the outlet of the tank bottom screw pump 1g is connected with the inlet of the feeding groove 1d through a transfusion pipeline.
The liquid conveying pipeline is also provided with a second concentration meter 1h, a fifth stop valve 1j and a third flow meter 1 k.
The recovery mechanism comprises a three-way stop valve 2a, a rectangular screen 2b, a viscometer 2c, a coating liquid recovery tank 2d, a discharge screw pump 2e, a first flowmeter 2p, a second flowmeter 2g and a first concentration meter 2 j.
An inlet of a three-way stop valve 2a is communicated with an outlet of a recovery tank 1e of a coating mechanism 1, a first outlet of the three-way stop valve 2a is communicated with a coating liquid in-situ tank 1f, a second outlet of the three-way stop valve 2a is connected with an inlet of a rectangular screen 2b, an outlet of the rectangular screen 2b is communicated with an inlet of a coating liquid recovery tank 2d through a viscometer 2c, an outlet of the coating liquid recovery tank 2d is communicated with an inlet of a discharge screw pump 2e, an outlet of the discharge screw pump 2e is communicated with a clear water source through an adjusting pipeline, the adjusting pipeline is provided with an adjustable throttle valve 2f and a second flow meter 2g, an outlet of the discharge screw pump 2e is communicated with an inlet of the coating liquid recovery tank 2d through a return pipeline, the return pipeline is provided with a second stop valve 2h and a first concentration meter 2j, an outlet of the discharge screw pump 2e is communicated with a transfusion pipeline of the coating mechanism 1 through a mixing pipeline, the mixing line is provided with a first stop valve 2k and a first flow meter 2 p.
Still be equipped with third stop valve 2n on the pipeline between the import of viscometer 2c and coating liquid recovery tank 2d among the recovery mechanism, pipeline between viscometer 2c and the third stop valve 2n is through cleaing away pipeline and outside intercommunication, is equipped with fourth stop valve 2m on the cleaing away the pipeline.
The physical index control method for realizing the dip-coating type coating liquid of the paper-making reconstituted tobacco by using the physical index control device for the dip-coating type coating liquid of the paper-making reconstituted tobacco comprises the following steps:
a) the newly prepared coating liquid enters a coating liquid in-situ tank 1f from a feeding pipe, the concentration, the viscosity and other physical indexes of the newly prepared coating liquid are stably controlled in the previous working section, and the incoming material concentration of the new coating liquid is as follows: 42% +/-0.5%, can ensure the stability of the physical index of the feeding coating liquid;
b) pumping the new coating liquid in the in-situ tank 1f from a tank bottom screw pump 1g, passing through a second densimeter 1h, and entering a coating mechanism 1 of the paper-making reconstituted tobacco dip-coating type coating liquid physical index control device;
c) the coating liquid is changed into a recovery liquid after the coating operation of the tobacco substrate is finished, the recovery liquid is intensively discharged by a recovery groove 1e of the coating mechanism 1, and the recovery liquid flows back to a rectangular screen 2b through a three-way stop valve 2a for purification treatment (under special conditions, such as a debugging stage or when the coating liquid in the coating mechanism 1 is not used, the coating liquid in the coating mechanism 1 directly returns to a coating liquid in-situ tank 1 f);
the rectangular sieve 2b carries out purification treatment on the recovery liquid, the viscometer 2c carries out viscosity detection on the recovery liquid treated by the rectangular sieve 2b, when the viscosity of the recovery liquid is within a range, the recovery liquid enters the coating liquid recovery tank 2d when the viscosity of the recovery liquid is less than 75cp, and when the viscosity of the recovery liquid is more than 75cp, the pollution discharge treatment is directly carried out and the rectangular sieve 2b is automatically cleaned;
d) the recovery liquid in the coating liquid recovery tank 2d is pumped out through a discharge screw pump 2e, the recovery liquid flows to the coating liquid recovery tank 2d and a transfusion pipeline through a return pipeline and a mixing pipeline respectively, the recovery liquid flows back to the coating liquid recovery tank 2d, the concentration value of the recovery liquid is detected through a first concentration meter 2j, and a second stop valve 2h ensures that the concentration of the recovery liquid in the coating liquid recovery tank 2d is stable;
the method avoids the clear water from directly entering the coating liquid in-situ tank 1f, and the capacity of the coating liquid recovery tank 2d is relatively small and has high adjustability;
meanwhile, according to the information detected by the first concentration meter 2j, the flow rate of clean water flowing from the clean water source to the outlet end of the discharge screw pump 2e is controlled in real time by the adjustable throttle valve 2f through PID adjustment according to the set concentration parameter, and the clean water is mixed with the discharged recovery liquid;
e) when the concentration of the concentrated recovery liquid reaches a preset value, a first stop valve 2k is opened, the recovery liquid enters a transfusion pipeline, and the recovery liquid and the new coating liquid pumped out from the coating liquid in-situ tank 1f are jointly subjected to online detection by a second concentration meter 1h and then enter a coating mechanism 1;
meanwhile, the control system detects the concentration of the recovery liquid through the first concentration meter 2j, so that the concentration of the recovery liquid in the return pipeline and the concentration of the recovery liquid in the mixing pipeline are kept between 40.5% plus or minus 0.2%, the flow rate of the recovery liquid is automatically adjusted to stabilize the concentration of the mixed liquid, and the concentration of the mixed liquid is stabilized at 41% plus or minus 0.5%;
f) and the steps are repeated to realize the real-time control of the physical indexes of the coating liquid of the dip-coating type of the reconstituted tobacco by the papermaking method.
The above description is only one embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and improvements can be made without departing from the principle of the present invention, and these should also be considered as belonging to the protection scope of the present invention.
Claims (5)
1. A paper-making process reconstituted tobacco dip-coating type coating liquid physical index control device is characterized in that:
comprises a coating mechanism and a recovery mechanism;
the coating mechanism comprises a tank bottom screw pump, a coating liquid in-place tank, a recovery tank, at least one feeding tank and two coating rollers, wherein the inlet of the coating liquid in-place tank is communicated with a coating liquid source, the outlet of the coating liquid in-place tank is communicated with the inlet of a tank bottom screw pump, and the outlet of the tank bottom screw pump is connected with the inlet of the feeding tank through a liquid conveying pipeline;
the recovery mechanism comprises a three-way stop valve, a rectangular sieve, a viscometer, a coating liquid recovery tank, a discharge screw pump, a first flowmeter, a second flowmeter and a first concentration meter;
the inlet of the three-way stop valve is communicated with the outlet of the recovery tank of the coating mechanism, the first outlet of the three-way stop valve is communicated with the local tank of the coating liquid, the second outlet of the three-way stop valve is connected with the inlet of the rectangular sieve, the outlet of the rectangular sieve is communicated with the inlet of the coating liquid recovery tank through a viscometer, the outlet of the coating liquid recovery tank is communicated with the inlet of the discharging screw pump, the outlet of the discharging screw pump is communicated with a clear water source through an adjusting pipeline, an adjustable throttle valve and a second flowmeter are arranged on the adjusting pipeline, the outlet of the discharging screw pump is communicated with the inlet of the coating liquid recovery tank through a return pipeline, the second stop valve and a first concentration meter are arranged on the return pipeline, the outlet of the discharging screw pump is communicated with a liquid conveying pipeline of the coating mechanism through a mixing pipeline, and a first stop valve and a first flowmeter are arranged on the mixing pipeline.
2. The paper-making process reconstituted tobacco dip-coating type coating liquid physical index control device according to claim 1, which is characterized in that:
still be equipped with the third stop valve on retrieving the pipeline between the import of jar is retrieved to viscometer and coating liquid in the mechanism, pipeline between viscometer and the third stop valve is equipped with the fourth stop valve through cleaing away pipeline and outside intercommunication on the pipeline.
3. The paper-making process reconstituted tobacco dip-coating type coating liquid physical index control device according to claim 1, which is characterized in that:
the coating mechanism further comprises a dip-coating bin, the feeding groove is arranged on the upper side of the dip-coating bin, an opening is formed in the side wall beside the dip-coating bin, the two coating rollers are mounted at the opening of the dip-coating bin, the edge of the opening of the dip-coating bin is sealed with the two coating rollers, a gap between the two coating rollers is provided with a gap through which only the tobacco substrate passes, the liquid level of the coating liquid in the dip-coating bin is higher than the gap between the two coating rollers, and the recovery groove is communicated with the bottom of the dip-coating bin.
4. The paper-making process reconstituted tobacco dip-coating type coating liquid physical index control device according to claim 3, which is characterized in that:
the coating mechanism comprises two feeding grooves, the two feeding grooves are located on the upper side of the dip-coating bin, the trend of the feeding grooves is consistent with the axial direction of the coating roller, the inlet of the feeding groove is located at the bottom, and the upper end face of the feeding groove is open.
5. The paper-making process reconstituted tobacco dip-coating type coating liquid physical index control device according to claim 1, which is characterized in that:
and a second concentration meter is also arranged on the infusion pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120656152.2U CN215124263U (en) | 2021-03-31 | 2021-03-31 | Paper-making method reconstituted tobacco dip-coating type coating liquid physical index control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120656152.2U CN215124263U (en) | 2021-03-31 | 2021-03-31 | Paper-making method reconstituted tobacco dip-coating type coating liquid physical index control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215124263U true CN215124263U (en) | 2021-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120656152.2U Withdrawn - After Issue CN215124263U (en) | 2021-03-31 | 2021-03-31 | Paper-making method reconstituted tobacco dip-coating type coating liquid physical index control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215124263U (en) |
-
2021
- 2021-03-31 CN CN202120656152.2U patent/CN215124263U/en not_active Withdrawn - After Issue
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| GR01 | Patent grant | ||
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20211214 Effective date of abandoning: 20230530 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20211214 Effective date of abandoning: 20230530 |