A method, device and medium for quantitatively adding water to tobacco stems to rehydrate

Abstract

The application discloses a tobacco stem quantitative water adding and moisturizing method, device and medium, relates to the tobacco stem pretreatment technical field, and is characterized in that: tobacco stem raw materials are transported to a stem washing module at a set material flow, and the total theoretical water adding weight is determined; the stem washing time of the stem washing module is determined, so that the water absorption weight of the tobacco stem raw materials is the first preset proportion of the total theoretical water adding weight; the tobacco stem raw materials are input into a moisturizing and storing module, the water adding flow of the moisturizing and storing module is determined according to the material flow, the original total weight, the total theoretical water adding weight and the second preset proportion; when the tobacco stem raw materials all enter the moisturizing and storing module, the current weight of the tobacco stem raw materials in the moisturizing and storing module is acquired, and the water supplement weight is determined according to the original total weight, the total theoretical water adding weight and the current weight. Water is added to the tobacco stem raw materials in batches and quantitatively, so that the difference between the water content of the processed tobacco stem raw materials and the target water content can be reduced; in the process that the materials enter the moisturizing and storing module, water is added at a constant water adding flow while the materials are being fed, the uniformity of the moisture content of the tobacco stem is improved, and moisture is uniformly penetrated.

Description

Technical Field

[0001] This application relates to the field of tobacco stem pretreatment technology, and in particular to a method, apparatus and medium for quantitatively adding water to tobacco stems for rehydration. Background Technology

[0002] The main tasks of tobacco stem pretreatment are to remove impurities, increase moisture content, improve moisture content and temperature, and enhance the stem's workability. Because dry tobacco stems are brittle and prone to breakage under pressure, it is necessary to appropriately increase the moisture content and temperature to soften the stems and ensure thorough moisture penetration. It is generally believed that tobacco stems have the strongest plasticity when their moisture content is around 30%. Therefore, the tobacco stems need to be rehydrated to the above requirements before pressing and cutting.

[0003] The main ways to increase moisture content in tobacco stem pretreatment are through the stem washing and stem moistening processes. In traditional tobacco stem pretreatment processes, the moisture content of the tobacco stems is not controlled during the stem washing process. During the stem moistening process, the washed tobacco stems are transported to the moistening device while the moisture content of the tobacco stems in the device is monitored in real time. The flow rate of water added to the tobacco stems is adjusted according to the moisture content. However, the water flow rate is unstable, making it difficult to control the moisture content of the tobacco stems evenly and stably. This results in uneven moisture reabsorption and a significant difference between the moisture content of the treated tobacco stems and the target moisture content.

[0004] Therefore, the key is to ensure that the moisture in the treated tobacco stem raw material is restored evenly and to reduce the difference between the moisture content of the treated tobacco stem raw material and the target moisture content. Summary of the Invention

[0005] The purpose of this application is to provide a method, apparatus and medium for quantitative water rehydration of tobacco stems, which addresses the current problem of uneven moisture rehydration of tobacco stems and a large difference between the moisture content of the treated tobacco stems and the target moisture content.

[0006] To solve the above-mentioned technical problems, this application provides a method for quantitatively adding water to tobacco stems for rehydration, including:

[0007] The flow control device delivers the current batch of tobacco stem raw materials to the stem washing module at a set material flow rate. The theoretical total weight of water to be added is determined based on the actual moisture content of the current batch of tobacco stem raw materials, the target moisture content after processing, and the original total weight of the current batch of tobacco stem raw materials.

[0008] The washing time of the washing module is determined, and the tobacco stem raw material is washed with the washing time so that the water absorption weight of the tobacco stem raw material after washing is the theoretical total weight of water added in the first preset ratio.

[0009] The washed tobacco stems are fed into the humidification module. A second preset ratio is determined for the weight of water added to the humidification module relative to the theoretical total weight of water added. The water flow rate of the humidification module is determined based on the material flow rate, the original total weight, the theoretical total weight of water added, and the second preset ratio. The sum of the second preset ratio and the first preset ratio is less than 100%.

[0010] When all the tobacco stem raw materials in the current batch enter the humidification and storage module, the current weight of the tobacco stem raw materials in the humidification and storage module is obtained. Based on the original total weight, the theoretical total weight of water added, and the current weight, the water replenishment weight is determined, and the humidification and storage module is controlled to add the water replenishment weight to the tobacco stem raw materials.

[0011] Optionally, determining the theoretical total weight of water to be added based on the actual moisture content of the current batch of tobacco stem raw materials, the target moisture content after treatment, and the original total weight of the current batch of tobacco stem raw materials includes:

[0012] The theoretical total weight of water added is determined according to the first preset formula;

[0013] The first preset formula is: M0 = [W0(1-a1) / (1-a2)] - W0;

[0014] Wherein, M0 is the theoretical total weight of water added, W0 is the original total weight, a1 is the actual moisture content, and a2 is the target moisture content.

[0015] Optionally, determining the water flow rate of the lubrication module based on the material flow rate, the original total weight, the theoretical total weight of water to be added, and the second preset ratio includes:

[0016] The water flow rate is determined according to the second preset formula;

[0017] The second preset formula is: L = (Q / W0) * M0 * k;

[0018] Wherein, L is the water flow rate, Q is the material flow rate, W0 is the original total weight, M0 is the theoretical total weight of water added, and k is the second preset ratio.

[0019] Optionally, determining the water replenishment weight based on the original total weight, the theoretical total weight of water to be added, and the current weight includes:

[0020] The weight of water replenishment is determined according to the third preset formula;

[0021] The third preset formula is: M1 = (W0 + M0) - W1;

[0022] Wherein, M1 is the weight of the water added, W0 is the original total weight, M0 is the theoretical total weight of water added, and W1 is the current weight.

[0023] Optionally, the lubrication module includes a mixing tank, a water nozzle, a stirrer, a mechanical slide valve, and a weighing sensor located at the bottom of the mixing tank. The top of the mixing tank has a feed inlet, and the bottom of the mixing tank has a discharge outlet. The mechanical slide valve is located at the discharge outlet. The water nozzle is located at the top of the mixing tank. One end of the stirrer is inserted into the mixing tank through a seal at the top of the mixing tank and extends to near the bottom of the mixing tank.

[0024] Optionally, after the control and humidification module adds the required amount of water to the tobacco stem raw material, it further includes:

[0025] Turn on the agitator to stir the tobacco stem raw material in the mixing tank;

[0026] After a preset time of stirring and storage, the mechanical gate valve is opened to transport the tobacco stem raw material in the mixing tank to the next processing module.

[0027] Optionally, the mixing tank is a frustum-shaped tank, and the top area of ​​the frustum-shaped tank is larger than the bottom area of ​​the frustum-shaped tank.

[0028] This application also provides a device for quantitatively adding water to tobacco stems for rehumidification, comprising:

[0029] The control module is used to control the flow control device to deliver the current batch of tobacco stem raw materials to the stem washing module at a set material flow rate. The theoretical total weight of water to be added is determined based on the actual moisture content of the current batch of tobacco stem raw materials, the target moisture content after processing, and the original total weight of the current batch of tobacco stem raw materials.

[0030] The first determining module is used to determine the washing time of the tobacco stem washing module, and to wash the tobacco stem raw material with the washing time so that the water absorption weight of the tobacco stem raw material after washing is the theoretical total weight of water added in the first preset ratio.

[0031] The second determining module is used to input the washed tobacco stem raw material into the moistening and storage module, determine a second preset ratio of the weight of water added to the moistening and storage module to the theoretical total weight of water added, and determine the water addition flow rate of the moistening and storage module based on the material flow rate, the original total weight, the theoretical total weight of water added, and the second preset ratio; wherein the sum of the second preset ratio and the first preset ratio is less than 100%;

[0032] The third determining module is used to obtain the current weight of the tobacco stem raw materials in the humidification and storage module when all tobacco stem raw materials in the current batch have entered the humidification and storage module, determine the water replenishment weight based on the original total weight, the theoretical total weight of water added, and the current weight, and control the humidification and storage module to add the water replenishment weight to the tobacco stem raw materials.

[0033] This application also provides a device for quantitatively adding water to tobacco stems for rehydration, including a memory for storing a computer program;

[0034] A processor is used to implement the steps of the method for quantitative water addition and rehydration of tobacco stems when executing the computer program.

[0035] This application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps of the method for quantitative water addition and rehydration of tobacco stems.

[0036] This application provides a method for quantitatively adding water to tobacco stems for rehydration, comprising: controlling a flow control device to transport the current batch of tobacco stem raw materials to a stem washing module at a set material flow rate; determining the theoretical total weight of water to be added based on the actual moisture content of the current batch of tobacco stem raw materials, the target moisture content after treatment, and the original total weight of the current batch of tobacco stem raw materials; determining the stem washing time of the stem washing module, and washing the tobacco stem raw materials during the washing time so that the water-absorbed weight of the washed tobacco stem raw materials is equal to the theoretical total weight of water to be added in a first preset proportion; inputting the washed tobacco stem raw materials into a moistening and storage module, determining the water-added weight of the moistening and storage module to be equal to the theoretical total weight of water to be added in a second preset proportion, and determining the water-adding flow rate of the moistening and storage module based on the material flow rate, the original total weight, the theoretical total weight of water to be added, and the second preset proportion; wherein the sum of the second preset proportion and the first preset proportion is less than 100%; when all the tobacco stem raw materials of the current batch have entered the moistening and storage module, obtaining the current weight of the tobacco stem raw materials in the moistening and storage module, determining the water replenishment weight based on the original total weight, the theoretical total weight of water to be added, and controlling the moistening and storage module to add water to the tobacco stem raw materials to replenish the water weight. This application adds water to the tobacco stem raw material in batches and in quantitative quantities, which can reduce the difference between the moisture content of the treated tobacco stem raw material and the target moisture content, and allow the tobacco stem to fully rehydrate. During the process of the material entering the moist storage module, water is added at a constant flow rate while feeding, which can improve the uniformity of the moisture content of the tobacco stem and make the moisture rehydrate in the treated tobacco stem raw material uniform.

[0037] The beneficial effects and methods of the tobacco stem quantitative water replenishment and rehumidification device and medium provided in this application are as described above. Attached Figure Description

[0038] To more clearly illustrate the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 A flowchart of a method for quantitatively adding water to tobacco stems for rehydration, provided in an embodiment of this application;

[0040] Figure 2 A structural diagram of a tobacco stem pretreatment system provided in an embodiment of this application;

[0041] Figure 3 A structural diagram of a lubrication storage module provided in an embodiment of this application;

[0042] Figure 4 A structural diagram of a tobacco stem quantitative water replenishment and rehumidification device provided in an embodiment of this application;

[0043] Figure 5 A structural diagram of another tobacco stem quantitative water replenishment and rehumidification device provided in the embodiments of this application;

[0044] The attached diagram is labeled as follows: 1 is the feeding module, 2 is the flow control device, 3 is the stem washing module, 4 is the lubrication and storage module, 5 is the discharge conveyor belt, 401 is the mixing tank, 402 is the water nozzle, 403 is the agitator, 404 is the mechanical slide valve, 405 is the weighing sensor, 406 is the feed inlet, 407 is the discharge outlet, and 408 is the support column. Detailed Implementation

[0045] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0046] The core of this application is to provide a method, apparatus and medium for quantitatively adding water to tobacco stems for rehydration, so as to make the moisture in the treated tobacco stem raw material uniformly rehydrate and reduce the difference between the moisture content of the treated tobacco stem raw material and the target moisture content.

[0047] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0048] Figure 1 A flowchart of a method for quantitatively adding water to tobacco stems for rehydration, as provided in this application embodiment, is shown below. Figure 1As shown, a method for quantitatively adding water to tobacco stems for rehydration includes:

[0049] S10: The flow control device delivers the current batch of tobacco stem raw materials to the stem washing module at a set material flow rate. The theoretical total weight of water to be added is determined based on the actual moisture content of the current batch of tobacco stem raw materials, the target moisture content after processing, and the original total weight of the current batch of tobacco stem raw materials.

[0050] S11: Determine the washing time of the tobacco stem washing module, and wash the tobacco stem raw material according to the washing time, so that the water absorption weight of the tobacco stem raw material after washing is the theoretical total weight of water added in the first preset ratio.

[0051] S12: Input the washed tobacco stem raw material into the humidification module, determine the second preset ratio of the water added weight of the humidification module to the theoretical total water added weight, and determine the water added flow rate of the humidification module based on the material flow rate, the original total weight, the theoretical total water added weight, and the second preset ratio; wherein, the sum of the second preset ratio and the first preset ratio is less than 100%.

[0052] S13: When all tobacco stem raw materials in the current batch have entered the humidification and storage module, obtain the current weight of the tobacco stem raw materials in the humidification and storage module, determine the water replenishment weight based on the original total weight, the theoretical total weight of water to be added and the current weight, and control the humidification and storage module to add water to the tobacco stem raw materials according to the water replenishment weight.

[0053] In step S10, the theoretical total weight of water to be added is determined based on the actual moisture content of the current batch of tobacco stem raw materials, the target moisture content after treatment, and the original total weight of the current batch of tobacco stem raw materials. This includes: determining the theoretical water addition flow rate according to a first preset formula; the first preset formula is: M0=[W0(1-a1) / (1-a2)]-W0; where M0 is the theoretical total weight of water to be added, W0 is the original total weight, a1 is the actual moisture content, and a2 is the target moisture content.

[0054] In step S11, the stem washing time can be an empirical value, that is, the washing time for the stem washing module to clean the tobacco stem raw material, so that the water-absorbing weight of the tobacco stem raw material after washing is the theoretical total weight of water added in the first preset ratio; of course, the amount of water to be added can also be determined based on the theoretical total weight of water added and the first preset ratio, and the water replenishment flow rate of the stem washing module can be obtained. The washing time can also be determined based on the water replenishment weight and water replenishment flow rate; among which, the first preset ratio is usually 70%-80%. The stem washing time is usually adjustable from 5s to 20s. Based on actual production, according to the actual moisture content of the tobacco stems fed in at 12%, the moisture content of the tobacco stems after washing can be adjusted to 27%-29% by adjusting the stem washing time, and the total amount of water absorbed by the tobacco stem raw material in the stem washing process is controlled to be about 70% to 80% of the theoretical total weight of water added.

[0055] In step S12, the water flow rate of the humidification module is determined based on the material flow rate, the original total weight, the theoretical total weight of water added, and the second preset ratio. This includes determining the water flow rate according to the second preset formula: L = (Q / W0) * M0 * k; where L is the water flow rate, Q is the material flow rate, W0 is the original total weight, M0 is the theoretical total weight of water added, and k is the second preset ratio. Furthermore, the sum of the second preset ratio and the first preset ratio is less than 100%, the purpose of which is to prevent the moisture content in the tobacco stem raw material from exceeding the preset target moisture content.

[0056] In step S14, the water replenishment weight is determined based on the original total weight, the theoretical total weight of water added, and the current weight, including: determining the water replenishment weight according to the third preset formula; the third preset formula is: M1=(W0+M0)-W1; where M1 is the water replenishment weight, W0 is the original total weight, M0 is the theoretical total weight of water added, and W1 is the current weight.

[0057] Furthermore, the lubrication module includes a mixing tank, a water nozzle, a stirrer, a mechanical gate valve, and a weighing sensor located at the bottom of the mixing tank. The mixing tank has an inlet at the top and an outlet at the bottom, with a mechanical gate valve at the outlet. The water nozzle is located at the top of the mixing tank. One end of the stirrer is inserted into the mixing tank through a top seal and extends to near the bottom. The water nozzle is used to add water to the mixing tank. The stirrer includes a motor and a screw shaft; the motor drives the screw shaft to rotate and stir the tobacco stem raw material. The mixing tank is a frustum-shaped tank, with the top area larger than the bottom area. This frustum-shaped design allows for the transport of as much tobacco stem raw material as possible to the next processing module. Support columns are located at the bottom of the mixing tank to support it, and a weighing sensor is installed between the support columns.

[0058] Based on this, after the control and hydration module adds water to the tobacco stem raw material by the required amount, the process also includes: activating the agitator to stir the tobacco stem raw material in the mixing tank; and after a preset stirring and storage time, controlling the mechanical gate valve to open to transport the tobacco stem raw material in the mixing tank to the next processing module. Activating the agitator to stir the tobacco stem raw material in the mixing tank ensures a more uniform moisture content. The next processing module may include a stem pressing and stem cutting module.

[0059] The present application provides a method for quantitatively adding water to tobacco stems for rehydration, comprising: controlling a flow control device to transport the current batch of tobacco stem raw materials to a stem washing module at a set material flow rate; determining the theoretical total weight of water to be added based on the actual moisture content of the current batch of tobacco stem raw materials, the target moisture content after processing, and the original total weight of the current batch of tobacco stem raw materials; determining the stem washing time of the stem washing module, and washing the tobacco stem raw materials during the washing time so that the water-absorbed weight of the washed tobacco stem raw materials is a first preset proportion of the theoretical total weight of water to be added; inputting the washed tobacco stem raw materials into a moistening and storage module, determining the water-added weight of the moistening and storage module to be a second preset proportion of the theoretical total weight of water to be added, and determining the water-adding flow rate of the moistening and storage module based on the material flow rate, the original total weight, the theoretical total weight of water to be added, and the second preset proportion; wherein the sum of the second preset proportion and the first preset proportion is less than 100%; when all the tobacco stem raw materials of the current batch have entered the moistening and storage module, obtaining the current weight of the tobacco stem raw materials in the moistening and storage module, determining the water replenishment weight based on the original total weight, the theoretical total weight of water to be added, and controlling the moistening and storage module to add water to the tobacco stem raw materials to replenish the water weight. This application adds water to the tobacco stem raw material in batches and in quantitative quantities, which can reduce the difference between the moisture content of the treated tobacco stem raw material and the target moisture content, and allow the tobacco stem to fully rehydrate. During the process of the material entering the moist storage module, water is added at a constant flow rate while feeding, which can improve the uniformity of the moisture content of the tobacco stem and make the moisture rehydrate in the treated tobacco stem raw material uniform.

[0060] Based on the above embodiments, Figure 2 A structural diagram of a tobacco stem pretreatment system provided in an embodiment of this application is shown below. Figure 2 As shown, the tobacco stem pretreatment system mainly includes: a feeding module 1, a flow control device 2, a stem washing module 3, and a moistening and storage module 4. Specifically, the feeding module 1 includes a turning feeder and an elevator belt; the flow control device 2 includes a metering tube and an electronic belt scale; the stem washing module 3 includes a washing assembly and a conveyor belt, and the washing assembly can be a water tank or washing nozzles, etc. Figure 3 A structural diagram of a lubrication storage module provided in an embodiment of this application is shown below. Figure 3As shown, the lubrication module 4 includes a mixing tank 401, a water nozzle 402, a stirrer 403, a mechanical gate valve 404, and a weighing sensor 405. The mixing tank 401 has a feed inlet 406 at its top and a discharge outlet 407 at its bottom. A mechanical gate valve 404 is located at the discharge outlet 407. The water nozzle 402 is positioned at the top of the mixing tank 401. One end of the stirrer 403 is sealed at the top of the mixing tank 401 and inserted into it, extending to near the bottom. The water nozzle 402 is used to add water to the mixing tank 401. The stirrer 403 includes a motor and a screw shaft; the motor drives the screw shaft to rotate and stir the tobacco stem raw material. The mixing tank 401 is a frustum-shaped tank, with the top area larger than the bottom area. This frustum-shaped design allows for the efficient transfer of all tobacco stems to the next processing module. Support columns 408 are located at the bottom of the mixing tank 401 to support it, and weighing sensors 405 are installed between the support columns 408. The discharge port 407 at the bottom of the mixing tank 401 can be connected to the discharge conveyor belt 5.

[0061] like Figure 2 As shown, the lifting belt of the feeding module 1 is connected to the inlet end of the metering tube, the outlet end of the metering tube is connected to the first end of the electronic belt scale, the second end of the electronic belt scale is connected to the cleaning component of the stem washing module 2, the conveyor belt of the stem washing module 2 is connected to the inlet 406 of the mixing tank 401, and the outlet 407 of the mixing tank 401 is connected to the discharge mesh belt machine 5. The discharge mesh belt machine 5 is used to transport the processed tobacco stem raw materials to the next processing module.

[0062] The following section will further introduce the method of quantitative water addition and rehydration of tobacco stems in conjunction with the tobacco stem pretreatment system described above.

[0063] The actual moisture content (a1) of the raw tobacco stems was measured to be 12%, and the target moisture content (a2) after washing and pretreatment was set at 32%. The raw tobacco stems were fed into the flow control device via a turning feeder and an elevator.

[0064] The tobacco stem raw material is flow-controlled by a metering tube and an electronic belt scale. The material flow rate Q of the tobacco stem raw material is set to 300 kg / h, and the original total weight W0 of the tobacco stem raw material is 500 kg. According to the first preset formula: M0=[W0(1-a1) / (1-a2)]-W0, the theoretical total weight M0 of the tobacco stem raw material with water is calculated to be 147.06 kg.

[0065] The tobacco stem raw material is evenly and stably fed into the feed end of the stem washing module via an electronic belt scale. The circulating water of the stem washing module is used to rinse the tobacco stem raw material. The washing time of the stem washing module is set to 10 seconds. After washing, the moisture content of the tobacco stem raw material is 28%. According to the actual moisture content of the tobacco stems fed in (12%), the tobacco stem raw material absorbs 110.3 kg of water during the stem washing process, accounting for 75% of the theoretical total weight of water added (first preset ratio).

[0066] After washing, the tobacco stems are conveyed by a conveyor belt to the inlet of the mixing tank in the humidification module. During feeding, the mechanical gate valve at the bottom of the mixing tank is closed, and the tobacco stems enter the mixing tank through the inlet. At the same time, the water nozzle flow meter is controlled to spray water into the mixing tank at a set water flow rate L. The second preset ratio k for this step is set to 15%. According to the second preset formula: L=(Q / W0)*M0*k, the water flow rate L of the nozzle is calculated to be 13.24 kg / h.

[0067] After the entire batch of tobacco stem raw materials is fed, the material in the mixing tank is statically weighed. The current weight W1 in the tank is obtained by the weighing sensor as 635.2 kg. According to the third preset formula: M1=(W0+M0)-W1, the weight of water to be added M1 is calculated to be 11.86 kg. After the water addition nozzle is controlled to add the weight of water M1 to the mixing tank at one time, the tobacco stem raw materials are moistened and stored.

[0068] During storage, the spiral shaft rotates in reverse at regular intervals to stir the tobacco stems at the bottom of the tank to the top, which can effectively balance the moisture content of the tobacco stems in the tank. The tobacco stem raw material is stored in the tank for 30 minutes. After moistening, the moisture content of the tobacco stem raw material is 32%, which meets the target moisture requirements. When discharging, the mechanical slide valve is opened, the spiral shaft rotates forward, and the tobacco stems are sent to the subsequent process.

[0069] This application's method involves washing tobacco stem raw materials and then storing them in a tank. Water is added simultaneously through nozzles inside the tank, and the material is weighed after feeding. Based on process requirements, the weight of water needed is directly calculated, and the system precisely and quantitatively adds water through the nozzles. This approach eliminates the need for surface water treatment of the washed tobacco stems, directly measuring the total weight of the raw material and surface water. Through a single static weighing, the final water addition is accurately controlled, precisely and quantitatively adding moisture to the tobacco stems, achieving the goal of efficient, energy-saving, and water-saving washing and moisturizing of the raw materials. During the feeding and storage process in the tank, the spiral shaft rotates periodically, agitating the tobacco stem raw materials from the bottom to the top, effectively balancing the moisture content. The average re-permeability rate of the tobacco stem raw materials processed by this method is 100%, with relatively consistent surface and internal moisture content, resulting in good re-permeability and ensuring the sensory quality, hardness, and draw resistance of the finished cigarettes.

[0070] The above embodiments have described the method for quantitative water addition and rehumidification of tobacco stems in detail. This application also provides embodiments corresponding to the device for quantitative water addition and rehumidification of tobacco stems. It should be noted that this application describes the embodiments of the device from two perspectives: one is based on the functional modules, and the other is based on the hardware.

[0071] Figure 4 A structural diagram of a tobacco stem quantitative water replenishment and rehumidification device provided in an embodiment of this application is shown below. Figure 4 As shown, a device for metering and rehydrating tobacco stems includes:

[0072] The control module 10 is used to control the flow control device to transport the current batch of tobacco stem raw materials to the stem washing module at a set material flow rate, and to determine the theoretical total weight of water to be added based on the actual moisture content of the current batch of tobacco stem raw materials, the target moisture content after processing, and the original total weight of the current batch of tobacco stem raw materials.

[0073] The first determining module 11 is used to determine the washing time of the tobacco stem washing module, and to wash the tobacco stem raw material according to the washing time, so that the water absorption weight of the tobacco stem raw material after washing is the theoretical total weight of water added in the first preset ratio.

[0074] The second determining module 12 is used to input the washed tobacco stem raw material into the moistening and storage module, determine the second preset ratio of the water added weight of the moistening and storage module to the theoretical total water added weight, and determine the water added flow rate of the moistening and storage module based on the material flow rate, the original total weight, the theoretical total water added weight, and the second preset ratio; wherein the sum of the second preset ratio and the first preset ratio is less than 100%.

[0075] The third determining module 13 is used to obtain the current weight of the tobacco stem raw materials in the moistening and storage module when all tobacco stem raw materials in the current batch have entered the moistening and storage module, determine the water replenishment weight based on the original total weight, the theoretical total weight of water added and the current weight, and control the moistening and storage module to add water to the tobacco stem raw materials according to the water replenishment weight.

[0076] Based on the above embodiments, as an optional embodiment, the control module includes:

[0077] The first determining unit is used to determine the theoretical total weight of water added according to the first preset formula; the first preset formula is: M0=[W0(1-a1) / (1-a2)]-W0; where M0 is the theoretical total weight of water added, W0 is the original total weight, a1 is the actual moisture content, and a2 is the target moisture content.

[0078] Based on the above embodiments, as an optional embodiment, the second determining module includes:

[0079] The second determining unit is used to determine the water flow rate according to the second preset formula; the second preset formula is: L=(Q / W0)*M0*k; where L is the water flow rate, Q is the material flow rate, W0 is the original total weight, M0 is the theoretical total weight of water added, and k is the second preset ratio.

[0080] Based on the above embodiments, as an optional embodiment, the third determining module includes:

[0081] The third determining unit is used to determine the water replenishment weight according to the third preset formula; the third preset formula is: M1=(W0+M0)-W1; where M1 is the water replenishment weight, W0 is the original total weight, M0 is the theoretical total weight of water added, and W1 is the current weight.

[0082] Since the embodiments of the apparatus and the embodiments of the method correspond to each other, please refer to the description of the embodiments of the method for the embodiments of the apparatus, which will not be repeated here.

[0083] Figure 5 A structural diagram of another tobacco stem quantitative water replenishment and rehumidification device provided in the embodiments of this application is shown below. Figure 5 As shown, the tobacco stem metering and rehydration device includes: a memory 20 for storing computer programs;

[0084] The processor 21 is used to execute a computer program to implement the steps of the method for quantitative water addition and rehydration of tobacco stems as described in the above embodiment.

[0085] The tobacco stem quantitative water replenishment and rehumidification device provided in this embodiment can be, but is not limited to, smartphones, tablets, laptops, or desktop computers.

[0086] The processor 21 may include one or more processing cores, such as a quad-core processor or an octa-core processor. The processor 21 may be implemented using at least one of the following hardware forms: Digital Signal Processor (DSP), Field-Programmable Gate Array (FPGA), or Programmable Logic Array (PLA). The processor 21 may also include a main processor and a coprocessor. The main processor, also known as the Central Processing Unit (CPU), is used to process data in the wake-up state; the coprocessor is a low-power processor used to process data in the standby state. In some embodiments, the processor 21 may integrate a Graphics Processing Unit (GPU), which is responsible for rendering and drawing the content to be displayed on the screen. In some embodiments, the processor 21 may also include an Artificial Intelligence (AI) processor, which handles computational operations related to machine learning.

[0087] The memory 20 may include one or more computer-readable storage media, which may be non-transitory. The memory 20 may also include high-speed random access memory and non-volatile memory, such as one or more disk storage devices or flash memory devices. In this embodiment, the memory 20 is used to store at least the following computer program 201, which, after being loaded and executed by the processor 21, is capable of implementing the relevant steps of the quantitative water replenishment and rehydration method for tobacco stems disclosed in any of the foregoing embodiments. In addition, the resources stored in the memory 20 may also include an operating system 202 and data 203, and the storage method may be temporary or permanent storage. The operating system 202 may include Windows, Unix, Linux, etc. The data 203 may include, but is not limited to, actual moisture content, target moisture content, original total weight, and material flow rate.

[0088] In some embodiments, the tobacco stem metering and rehydration device may further include a display screen 22, an input / output interface 23, a communication interface 24, a power supply 25, and a communication bus 26.

[0089] Those skilled in the art will understand that Figure 5 The structure shown does not constitute a limitation on the tobacco stem metering and rehydration device, and may include more or fewer components than shown.

[0090] This application provides a tobacco stem quantitative water addition and rehydration device, including a memory and a processor. When the processor executes the program stored in the memory, it can implement the following methods: controlling a flow control device to transport the current batch of tobacco stem raw materials to a stem washing module at a set material flow rate; determining the theoretical total weight of water to be added based on the actual moisture content of the current batch of tobacco stem raw materials, the target moisture content after processing, and the original total weight of the current batch of tobacco stem raw materials; determining the stem washing time of the stem washing module, and cleaning the tobacco stem raw materials during the washing time so that the water-absorbed weight of the washed tobacco stem raw materials is a first preset ratio of the theoretical weight of water to be added. The total weight of water; after washing the tobacco stems, the raw tobacco stems are input into the humidification module. The weight of water added to the humidification module is determined to be a second preset ratio of the theoretical total weight of water added. The water flow rate of the humidification module is determined based on the material flow rate, the original total weight, the theoretical total weight of water added, and the second preset ratio. The sum of the second preset ratio and the first preset ratio is less than 100%. When all the raw tobacco stems in the current batch have entered the humidification module, the current weight of the raw tobacco stems in the humidification module is obtained. The water replenishment weight is determined based on the original total weight, the theoretical total weight of water added, and the current weight. The humidification module is then controlled to add water to the raw tobacco stems according to the replenishment weight.

[0091] Finally, this application also provides an embodiment corresponding to a computer-readable storage medium. The computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps described in the above-described method embodiment for quantitative water addition and rehydration of tobacco stems.

[0092] It is understood that if the methods in the above embodiments are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and executes all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0093] The foregoing provides a detailed description of a method, apparatus, and medium for quantitatively adding water to tobacco stems for rehydration. The various embodiments in the specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to in the method section. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

[0094] It should also be noted that, in this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A method for quantitatively adding water to tobacco stems for rehydration, characterized in that, include: The flow control device delivers the current batch of tobacco stem raw materials to the stem washing module at a set material flow rate. The theoretical total weight of water to be added is determined based on the actual moisture content of the current batch of tobacco stem raw materials, the target moisture content after processing, and the original total weight of the current batch of tobacco stem raw materials. The washing time of the washing module is determined, and the tobacco stem raw material is washed with the washing time so that the water absorption weight of the tobacco stem raw material after washing is the theoretical total weight of water added in the first preset ratio. The washed tobacco stems are fed into the humidification module. A second preset ratio is determined for the weight of water added to the humidification module relative to the theoretical total weight of water added. The water flow rate of the humidification module is determined based on the material flow rate, the original total weight, the theoretical total weight of water added, and the second preset ratio. The sum of the second preset ratio and the first preset ratio is less than 100%. When all the tobacco stem raw materials in the current batch enter the humidification and storage module, the current weight of the tobacco stem raw materials in the humidification and storage module is obtained. Based on the original total weight, the theoretical total weight of water added, and the current weight, the water replenishment weight is determined, and the humidification and storage module is controlled to add the water replenishment weight to the tobacco stem raw materials.

2. The method for quantitatively adding water to tobacco stems for rehydration according to claim 1, characterized in that, The determination of the theoretical total weight of water to be added based on the actual moisture content of the current batch of tobacco stem raw materials, the target moisture content after processing, and the original total weight of the current batch of tobacco stem raw materials includes: The theoretical total weight of water added is determined according to the first preset formula; The first preset formula is: M0 = [W0(1-a1) / (1-a2)] - W0; Wherein, M0 is the theoretical total weight of water added, W0 is the original total weight, a1 is the actual moisture content, and a2 is the target moisture content.

3. The method for quantitatively adding water to tobacco stems for rehydration according to claim 1, characterized in that, The step of determining the water flow rate of the humidification module based on the material flow rate, the original total weight, the theoretical total weight of water to be added, and the second preset ratio includes: The water flow rate is determined according to the second preset formula; The second preset formula is: L = (Q / W0) * M0 * k; Wherein, L is the water flow rate, Q is the material flow rate, W0 is the original total weight, M0 is the theoretical total weight of water added, and k is the second preset ratio.

4. The method for quantitatively adding water to tobacco stems for rehydration according to claim 1, characterized in that, The process of determining the water replenishment weight based on the original total weight, the theoretical total weight of water to be added, and the current weight includes: The weight of water replenishment is determined according to the third preset formula; The third preset formula is: M1 = (W0 + M0) - W1; Wherein, M1 is the weight of the water added, W0 is the original total weight, M0 is the theoretical total weight of water added, and W1 is the current weight.

5. The method for quantitatively adding water to tobacco stems for rehydration according to claim 1, characterized in that, The lubrication module includes a mixing tank, a water nozzle, a stirrer, a mechanical slide valve, and a weighing sensor located at the bottom of the mixing tank. The top of the mixing tank has a feed inlet, and the bottom of the mixing tank has a discharge outlet. The mechanical slide valve is located at the discharge outlet. The water nozzle is located at the top of the mixing tank. One end of the stirrer is inserted into the mixing tank through a seal at the top of the mixing tank and extends to near the bottom of the mixing tank.

6. The method for quantitatively adding water to tobacco stems for rehydration according to claim 5, characterized in that, After the control and humidification module adds the required amount of water to the tobacco stem raw material, it also includes: Turn on the agitator to stir the tobacco stem raw material in the mixing tank; After a preset time of stirring and storage, the mechanical gate valve is opened to transport the tobacco stem raw material in the mixing tank to the next processing module.

7. The method for quantitatively adding water to tobacco stems for rehydration according to claim 5, characterized in that, The mixing tank is a frustum-shaped tank, and the top area of ​​the frustum-shaped tank is larger than the bottom area of ​​the frustum-shaped tank.

8. A device for quantitatively adding water to tobacco stems for rehumidification, characterized in that, include: The control module is used to control the flow control device to deliver the current batch of tobacco stem raw materials to the stem washing module at a set material flow rate. The theoretical total weight of water to be added is determined based on the actual moisture content of the current batch of tobacco stem raw materials, the target moisture content after processing, and the original total weight of the current batch of tobacco stem raw materials. The first determining module is used to determine the washing time of the tobacco stem washing module, and to wash the tobacco stem raw material with the washing time so that the water absorption weight of the tobacco stem raw material after washing is the theoretical total weight of water added in the first preset ratio. The second determining module is used to input the washed tobacco stem raw material into the moistening and storage module, determine a second preset ratio of the weight of water added to the moistening and storage module to the theoretical total weight of water added, and determine the water addition flow rate of the moistening and storage module based on the material flow rate, the original total weight, the theoretical total weight of water added, and the second preset ratio; wherein the sum of the second preset ratio and the first preset ratio is less than 100%; The third determining module is used to obtain the current weight of the tobacco stem raw materials in the humidification and storage module when all tobacco stem raw materials in the current batch have entered the humidification and storage module, determine the water replenishment weight based on the original total weight, the theoretical total weight of water added, and the current weight, and control the humidification and storage module to add the water replenishment weight to the tobacco stem raw materials.

9. A device for quantitatively adding water to tobacco stems for rehumidification, characterized in that, Includes memory used to store computer programs; A processor, configured to execute the computer program to implement the steps of the method for quantitative water addition and rehydration of tobacco stems as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the steps of the method for quantitative water addition and rehydration of tobacco stems as described in any one of claims 1 to 7.

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