General treatment system for fermentation liquor of tobacco fermentation line

Abstract

The utility model provides a general treatment system for fermentation liquor of a tobacco fermentation line. The general treatment system comprises a fermentation tank, a vibrating screen, a temporary storage tank, a front storage tank, a rear storage tank, a microfiltration assembly and an ultrafiltration assembly, wherein the temporary storage tank has three functions of temporarily storing filtrate after solid-liquid separation of a vibrating screen, temporarily storing purified water before microfiltration operation and temporarily storing purified water before ultrafiltration operation, and is respectively matched with the front storage tank, the rear storage tank and a matched pipeline; the preparation and storage of the bacterial liquid and the preparation and refrigeration of the enzyme liquid can be realized. According to the general treatment system for the fermentation liquor of the tobacco fermentation line, through the systematic design of the composite tank body and the pipeline, the fermentation liquor can be prepared on site, and meanwhile the requirements for preparation and refrigeration of concentrated bacterial liquor and concentrated enzyme liquor are met.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco fermentation, in particular to a general processing system for fermentation liquid of a tobacco fermentation line. Background Art

[0002] Tobacco leaves, tobacco shreds and shredded stems need to be fermented during the production process. Among them, the use of fermentation liquid, such as bacterial liquid and enzyme liquid for online fermentation treatment is a common fermentation form that is gradually being promoted and applied. Among them, the bacterial liquid and enzyme liquid are usually purchased bacterial liquid and enzyme liquid, and are sprayed onto the surface of tobacco leaves, tobacco shreds and shredded stems through a pipeline system.

[0003] On the one hand, during laboratory experiments, bacterial and enzyme solutions are purchased or prepared externally and then used on a makeshift production line. The fermentation solution may change during the transfer process, which may have an adverse effect on the research work.

[0004] On the other hand, if one wants to prepare bacterial solution and enzyme solution on site, due to the difference in their properties, two independent processing systems are required to prepare them separately, which is costly and occupies a large area.

[0005] In order to solve the above problems, people have been seeking an ideal technical solution. Utility Model Content

[0006] The utility model aims to address the deficiencies of the prior art and thus provide a tobacco fermentation line fermentation liquid universal processing system which meets the preparation and refrigeration requirements of concentrated bacterial liquid and concentrated enzyme liquid.

[0007] In order to achieve the above-mentioned purpose, the technical scheme adopted by the utility model is: a general processing system for fermentation liquid of tobacco fermentation line, including a fermentation tank, a vibrating screen, a temporary storage tank, a front storage tank, a rear storage tank, a microfiltration component and an ultrafiltration component;

[0008] The outlet end of the fermentation tank is connected to the feed port of the vibrating screen, the filtrate outlet of the vibrating screen is connected to the inlet of the temporary storage tank, and the outlet of the temporary storage tank is provided with two branches through a filtrate pump, the first branch is connected to the inlet of the front storage tank through a filtrate valve, and the second branch is connected to the inlet of the rear storage tank through a dialyzate water inlet valve;

[0009] The outlet of the front storage tank is provided with two branches, the third branch is connected to the spray terminal pipeline through the bacterial liquid metering pump and the bacterial liquid switching valve, the fourth branch is connected to the inlet of the microfiltration component through the circulation pump, the circulation outlet of the microfiltration component is connected to the upper end liquid return port of the front storage tank through the first circulation pipeline and the microfiltration circulation valve, and the filtrate outlet of the microfiltration component is connected to the inlet of the rear storage tank through the microfiltrate inlet valve;

[0010] The outlet of the rear storage tank is provided with two branches, the fifth branch is connected to the spraying terminal pipeline through the enzyme liquid metering pump and the enzyme liquid switching valve, the sixth branch is connected to the inlet of the ultrafiltration component through the circulation pump, the circulation outlet of the ultrafiltration component is connected to the upper liquid return port of the rear storage tank through the second circulation pipeline and the ultrafiltration circulation valve, and the filtrate outlet of the ultrafiltration component is connected to the upper liquid return port of the front storage tank through the third circulation pipeline and the ultrafiltrate inlet valve.

[0011] Based on the above, a filter residue temporary storage chamber is provided in the vibrating screen, and the fermentation liquid in the fermentation tank is sent to the vibrating screen by compressed air, and the solid residue of the fermentation liquid is retained in the filter residue temporary storage chamber of the vibrating screen.

[0012] Based on the above, a stirring assembly and a temperature control interlayer are provided in the front storage tank and the rear storage tank.

[0013] Based on the above, it also includes a chiller, a cold water pipe and a cold water valve. The chiller is connected to the temperature control interlayer of the front storage tank and the rear storage tank through the cold water pipe and the cold water valve.

[0014] Based on the above, the volumes of the fermentation tank, temporary storage tank, front storage tank and rear storage tank are all between 20L and 35L.

[0015] Based on the above, the microfiltration membrane of the microfiltration component adopts a 0.1-0.2 micron ceramic membrane core, and the microfiltration membrane area is 0.2-0.4m 2 The ultrafiltration membrane of the ultrafiltration component adopts an organic membrane with a molecular weight cutoff of 8000-15000 Daltons, and the ultrafiltration membrane area is 1-2m 2 .

[0016] Based on the above, the flow rate control range of the enzyme solution metering pump is 0.2-4 L / h, and the flow rate control range of the bacteria solution metering pump is 0.2-4 L / h.

[0017] Based on the above, the pipelines used in the system are made of 304 and above stainless steel pipes, pipe fittings and valves.

[0018] The utility model has substantial characteristics and progress compared with the prior art. Specifically, the utility model has the following advantages:

[0019] 1. Provide on-site preparation conditions for the fermentation liquid preparation of tobacco leaves, tobacco shreds and tobacco stems during the cigarette production process, greatly improve flexibility, especially provide favorable conditions for research-based production activities.

[0020] 2. Through the composite design of pipelines and tanks, it can meet the preparation requirements of bacterial liquid and enzyme liquid at the same time, and can meet the needs of most fermentation work.

[0021] 3. Temporary storage tanks, front storage tanks and rear storage tanks have different functions in different usage scenarios, with high equipment utilization efficiency and cost savings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The utility model discloses a pipeline connection principle diagram of a general processing system for fermentation liquid of a tobacco fermentation line.

[0023] In the figure: 1. fermentation tank; 2. vibrating screen; 3. temporary storage tank; 4. front storage tank; 5. rear storage tank; 6. microfiltration component; 7. ultrafiltration component; 8. filtrate pump; 9. first branch; 10. second branch; 11. filtrate valve; 12. dialysis water inlet valve; 13. third branch; 14. fourth branch; 15. bacterial liquid metering pump; 16. bacterial liquid switching valve; 17. spray terminal pipeline; 18. first circulation pump; 19. first circulation pipeline; 20. microfiltration circulation valve; 21. fifth branch; 22. sixth branch; 23. second circulation pump; 24. second circulation pipeline; 25. ultrafiltration circulation valve; 26. enzyme liquid switching valve; 27. third circulation pipeline; 28. ultrafiltrate inlet valve; 29. ​​microfiltrate inlet valve; 30. enzyme liquid metering pump; 31. cold water pipe; 32. cold water valve. DETAILED DESCRIPTION

[0024] The technical solution of the utility model is further described in detail below through specific implementation methods.

[0025] like Figure 1 As shown, a universal processing system for fermentation liquid of a tobacco fermentation line includes a fermentation tank 1, a vibrating screen 2, a temporary storage tank 3, a front storage tank 4, a rear storage tank 5, a microfiltration component 6 and an ultrafiltration component 7.

[0026] The outlet end of the fermentation tank 1 is connected to the feed port of the vibrating screen 2, and the filtrate outlet of the vibrating screen 2 is connected to the inlet of the temporary storage tank 3. A filter residue temporary storage chamber is provided in the vibrating screen. The fermentation liquid in the fermentation tank is fed into the vibrating screen by compressed air, and the solid residue of the fermentation liquid is retained in the filter residue temporary storage chamber of the vibrating screen.

[0027] The function of the vibrating screen is to receive the fermentation liquid from the fermentation tank. Under the action of the vibrating motor of the vibrating screen, the solid and liquid can be separated quickly. The solid residue after separation remains in the vibrating screen and is removed once the filtration is completed; the filtrate is pumped into the front storage tank through the filtrate temporary storage tank by the filtrate pump.

[0028] The liquid outlet of the temporary storage tank 3 is provided with two branches through the filtrate pump 8 , the first branch 9 is connected to the inlet of the front storage tank 4 through the filtrate valve 11 , and the second branch 10 is connected to the inlet of the rear storage tank 5 through the dialysate water inlet valve 12 .

[0029] There are three usage scenarios for the temporary storage tank 3: a. During the solid-liquid separation process of the vibrating screen, it is used as a temporary storage tank for the filtrate; b. Before the microfiltration operation is completed, the pure water stored in the temporary storage tank 3 is pumped into the front storage tank 4 to dialyze out the impurities in the concentrated bacterial solution, thereby further improving the concentration and purity of the bacteria; c. Before the ultrafiltration operation is completed, the pure water stored in the temporary storage tank 3 is pumped into the rear storage tank 5 to dialyze out the impurities in the concentrated enzyme solution, thereby further improving the concentration and purity of the enzyme solution; in the latter two cases, the temporary storage tank 3 is used as a dialysis water tank.

[0030] The front storage tank 4 and the rear storage tank 5 are both provided with a stirring assembly and a temperature control interlayer.

[0031] The outlet of the front storage tank 4 is provided with two branches, the third branch 13 is connected to the spraying terminal pipeline 17 through the bacteria liquid metering pump 15 and the bacteria liquid switching valve 16, the fourth branch 14 is connected to the inlet of the microfiltration component 6 through the first circulation pump 18, the circulation outlet of the microfiltration component 6 is connected to the upper end liquid return port of the front storage tank 4 through the first circulation pipeline 19 and the microfiltration circulation valve 20, and the filtrate outlet of the microfiltration component 6 is connected to the inlet of the rear storage tank 5 through the microfiltrate inlet valve 29.

[0032] The front storage tank is equipped with a stirring assembly and a temperature control interlayer, and has temperature control and stirring functions. It is not only a circulation tank and a concentrated bacterial liquid cold storage tank during microfiltration, but also a filtrate storage tank during ultrafiltration. During the concentrated bacterial liquid cold storage and microfiltration operation, the chilled water of the chiller can enter the jacket of the front storage tank to control the temperature of the front storage tank and maintain a low temperature environment, which is conducive to the long-term preservation of the concentrated bacterial liquid.

[0033] Two branches are set at the outlet of the rear storage tank 5, the fifth branch 21 is connected to the spraying terminal pipeline 17 through the enzyme liquid metering pump 25 and the enzyme liquid switching valve 26, the sixth branch 22 is connected to the inlet of the ultrafiltration component 7 through the second circulation pump 23, the circulation outlet of the ultrafiltration component 7 is connected to the upper liquid return port of the rear storage tank 5 through the second circulation pipeline 24 and the ultrafiltration circulation valve 25, and the filtrate outlet of the ultrafiltration component 7 is connected to the upper liquid return port of the front storage tank 4 through the third circulation pipeline 27 and the ultrafiltrate inlet valve 28.

[0034] The rear storage tank is equipped with a stirring assembly and a temperature control interlayer, and has temperature control and stirring functions. It is not only a circulation tank and concentrated enzyme liquid cooling tank during ultrafiltration, but also a filtrate storage tank during microfiltration. During the concentrated enzyme liquid cooling and ultrafiltration operations, the chilled water of the chiller can enter the jacket of the rear storage tank to control the temperature of the rear storage tank and maintain a low temperature environment, which is conducive to the long-term preservation of the concentrated enzyme liquid.

[0035] The microfiltration membrane of the microfiltration component adopts a 0.1-0.2 micron ceramic membrane core, and the microfiltration membrane area is 0.2-0.4m 2The ultrafiltration membrane of the ultrafiltration component adopts an organic membrane with a molecular weight cutoff of 8000-15000 Daltons, and the ultrafiltration membrane area is 1-2m 2 The two can be combined to perform two operations: microfiltration concentration of bacterial solution and ultrafiltration concentration of enzyme solution. When bacterial solution is inoculated and fermented, it is only necessary to run the vibration screen filtration and microfiltration system, and store the concentrated bacterial solution in the front storage tank at low temperature for standby use. When enzyme solution is sprayed for enzymatic hydrolysis, it is necessary to run the vibration screen to remove particulate impurities, microfiltration for sterilization and ultrafiltration concentration in sequence, and store the concentrated enzyme solution in the rear storage tank for standby use at low temperature.

[0036] In a preferred embodiment, a water chiller, a cold water pipe 31 and a cold water valve 32 are also included. The water chiller is connected to the temperature control interlayer of the front storage tank 4 and the rear storage tank 5 through the cold water pipe 31 and the cold water valve 32 to achieve temperature control.

[0037] In a preferred embodiment, the volumes of the fermentation tank, temporary storage tank, front storage tank and rear storage tank are all between 20L-35L, the flow control range of the enzyme solution metering pump is 0.2-4L / h, and the flow control range of the bacteria solution metering pump is 0.2-4L / h.

[0038] In a preferred embodiment, the pipelines used in the system are all made of 304 and above stainless steel pipes, pipe fittings and valves.

[0039] Working principle description:

[0040] The fermentation tank is kept at a pressure of 0.1 MPa and the stirring is kept in operation (200 rpm);

[0041] After setting the refrigeration temperature in the automatic control system, the enzyme solution treatment program is started with one button, and the program automatically opens the sieve inlet valve and vibrating screen 2 according to the steps;

[0042] Open the bottom valve in the fermentation tank 1 (control the feed flow rate) and the hand valve on the pipeline, the fermentation liquid is pressed into the started vibrating screen 2, the filtrate flows into the temporary storage tank 3, the program automatically controls the start of the filtrate pump 8, and the filtrate is pumped into the front storage tank 4.

[0043] After the vibration screen operation is completed, the filter residue can be washed with clean water, and the washing water is pumped into the front storage tank 4.

[0044] Automatically start microfiltration operation (concentration operation for bacterial solution and sterilization operation for enzyme solution);

[0045] After being concentrated to a certain concentration, dialyzed water is added by time control (15-18L of pure water is added to the temporary storage tank in advance) to complete the bacterial washing step of the microfiltration operation;

[0046] After the microfiltration operation is completed, for bacterial liquid concentration, the subsequent operation is low-temperature storage of the concentrated bacterial liquid (it can be automatically operated by setting the temperature of the front storage tank 4);

[0047] For enzyme solution treatment, first drain the concentrated bacterial solution in the tank, clean it, and then start the program with one button to enter the ultrafiltration concentration operation stage;

[0048] The whole steps of ultrafiltration operation are similar to those of the front storage tank 4. When the enzyme solution is concentrated to a certain extent, it is dialyzed with 15-18L of dialysis water;

[0049] c. Low temperature storage of the prepared concentrated bacterial solution and enzyme solution;

[0050] For concentrated bacterial liquid, after microfiltration begins, the low-temperature preservation control operation of the circulating microfiltrate is carried out according to the temperature setting value of the front storage tank.

[0051] For concentrated enzyme solution, after the ultrafiltration operation is run, the rear storage tank can also realize the low-temperature preservation function of the system's automatic control through the temperature setting value.

[0052] During the low temperature storage process, the stirring of the front and rear storage tanks is in operation. It should be noted that the chiller should be turned on in advance to ensure the appropriate temperature.

[0053] d. Microfiltration and ultrafiltration are shut down as a whole

[0054] After the low-temperature preservation of the bacterial solution and enzyme solution is completed, the overall operating pump group and valves are shut down at the system level, and the chiller is turned off.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.

Claims

1. A general processing system for fermentation liquid of tobacco fermentation line, characterized by: Including fermentation tank, vibrating screen, temporary storage tank, front storage tank, back storage tank, microfiltration component and ultrafiltration component; The outlet end of the fermentation tank is connected to the feed port of the vibrating screen, the filtrate outlet of the vibrating screen is connected to the inlet of the temporary storage tank, and the outlet of the temporary storage tank is provided with two branches through a filtrate pump, the first branch is connected to the inlet of the front storage tank through a filtrate valve, and the second branch is connected to the inlet of the rear storage tank through a dialyzate water inlet valve; The outlet of the front storage tank is provided with two branches, the third branch is connected to the spray terminal pipeline through the bacterial liquid metering pump and the bacterial liquid switching valve, the fourth branch is connected to the inlet of the microfiltration component through the circulation pump, the circulation outlet of the microfiltration component is connected to the upper end liquid return port of the front storage tank through the first circulation pipeline and the microfiltration circulation valve, and the filtrate outlet of the microfiltration component is connected to the inlet of the rear storage tank through the microfiltrate inlet valve; The outlet of the rear storage tank is provided with two branches, the fifth branch is connected to the spraying terminal pipeline through the enzyme liquid metering pump and the enzyme liquid switching valve, the sixth branch is connected to the inlet of the ultrafiltration component through the circulation pump, the circulation outlet of the ultrafiltration component is connected to the upper liquid return port of the rear storage tank through the second circulation pipeline and the ultrafiltration circulation valve, and the filtrate outlet of the ultrafiltration component is connected to the upper liquid return port of the front storage tank through the third circulation pipeline and the ultrafiltrate inlet valve.

2. The general processing system for fermentation liquid of tobacco fermentation line according to claim 1, characterized in that: The vibrating screen is provided with a filter residue temporary storage chamber, and the fermentation liquid in the fermentation tank is fed into the vibrating screen by compressed air, and the solid residue of the fermentation liquid is retained in the filter residue temporary storage chamber of the vibrating screen.

3. The general processing system for fermentation liquid of tobacco fermentation line according to claim 2, characterized in that: The front storage tank and the rear storage tank are both provided with a stirring assembly and a temperature control interlayer.

4. The general processing system for fermentation liquid of tobacco fermentation line according to claim 3, characterized in that: It also includes a water chiller, a water chiller pipe and a water chiller valve. The water chiller is connected to the temperature control interlayer of the front storage tank and the rear storage tank through the water chiller pipe and the water chiller valve.

5. The general processing system for fermentation liquid of tobacco fermentation line according to claim 3 or 4, characterized in that: The volumes of the fermentation tank, temporary storage tank, front storage tank and rear storage tank are all between 20L and 35L.

6. The universal processing system for fermentation liquid of tobacco fermentation line according to claim 5, characterized in that: The microfiltration membrane of the microfiltration component adopts a 0.1-0.2 micron ceramic membrane core, and the microfiltration membrane area is 0.2-0.4m 2 The ultrafiltration membrane of the ultrafiltration component adopts an organic membrane with a molecular weight cutoff of 8000-15000 Daltons, and the ultrafiltration membrane area is 1-2m 2 .

7. The universal processing system for fermentation liquid of tobacco fermentation line according to claim 6, characterized in that: The flow rate control range of the enzyme solution metering pump is 0.2-4 L / h, and the flow rate control range of the bacteria solution metering pump is 0.2-4 L / h.

8. The general processing system for fermentation liquid of tobacco fermentation line according to claim 1, characterized in that: The pipes, fittings and valves used in the system are made of 304 stainless steel.

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