Preparation system and preparation method of thick paste method sheet slurry for heating cigarettes

Abstract

The invention discloses a preparation system and a preparation method of thick-slurry-method slice slurry for heating cigarettes, and the preparation system of the thick-slurry-method slice slurry for heating the cigarettes comprises at least one of a tobacco shred processing device and a slice powder processing device, a process water feeding device, a primary crushing device, a wood pulp processing device and a secondary crushing device; wherein the tobacco shred processing device is used for forming a material I, the shred processing device is used for forming a material II, the primary crushing device is used for mixing the material I and / or the material II and process water and performing wet crushing to form a material III, and the wood pulp processing device is used for forming a material IV; and the second-stage crushing device is used for mixing the material III and the material IV and grinding the mixture into a material V. Tobacco raw materials are crushed through a wet method, the crushing efficiency is high, the crushing effect is good, the tobacco powder yield is high, the quality of finished pulp is improved, dust removal and dust explosion-proof equipment is not needed, clean production is conveniently achieved, and the cost is reduced.

Description

Technical Field

[0001] This application relates to the field of tobacco processing technology, specifically to a preparation system and method for a thick slurry sheet for heated cigarettes. Background Technology

[0002] Tobacco sheets are one of the important raw materials for tobacco products. Their preparation methods can be broadly classified into roller pressing, slurry processing, and papermaking. The slurry processing method typically involves: pulverizing tobacco raw materials into 80-300 mesh to form material one; hydraulically pulping and refining fiberboard to form material two; mixing material one, material two, and auxiliary materials such as binders, glycerin, and flavorings according to a formula to form a slurry; spreading the slurry thinly onto a steel strip using methods such as casting, coating, and roller coating; drying; and then peeling off the dried sheets for cutting or rolling. Slurry sheets used in heated cigarettes (i.e., heat-not-burning cigarettes, HNB) may contain atomizing agents, primarily glycerin and propylene glycol, which are generally added during the slurry preparation stage of the slurry process.

[0003] In the aforementioned processes, tobacco raw materials are generally processed using dry pulverization. Its advantages include: dry tobacco powder is less prone to spoilage during storage and has a smaller storage volume; complete tobacco raw material formulations can be pulverized, homogenized, and then used in batches, making it suitable for small-scale production. Its disadvantages are: dry pulverization generally requires pre-drying of the raw materials for moisture adjustment to ensure pulverization quality; additional dust collection pipes and equipment are needed during pulverization; and due to the small particle size, the processing environment and equipment must meet dust explosion-proof requirements. For laboratory sample preparation that does not require batch pulping and for large-scale production, these disadvantages, along with the additional requirements for dust removal and explosion-proof measures, place higher demands on site and equipment investment.

[0004] Furthermore, with the continuous expansion of the heated cigarette market and the increasing diversity of flavor demands, the raw materials for heated cigarette sheets are no longer limited to traditional tobacco fragments and dust, but also widely used high-quality boxed tobacco sheets. However, when boxed tobacco sheets are present in the raw material formulation, the uncrushed tobacco sheets cannot effectively remove impurities using the spectral purification equipment in traditional cigarette manufacturing processes. The crushed impurities can easily contaminate the raw materials, causing off-flavors in the heated cigarette sheets. Summary of the Invention

[0005] The purpose of this application is to propose a system and method for preparing thick slurry sheet for heated cigarettes, which improves pulverization efficiency and cigarette powder yield, reduces the need for dust removal and dust explosion prevention equipment, facilitates clean production, and lowers costs.

[0006] To solve at least one of the above-mentioned technical problems, the technical solution of this application is as follows:

[0007] According to a first aspect of this application, a system for preparing sheet pulp for heated cigarettes using a thick slurry method is provided, comprising: at least one of a tobacco processing device or a sheet processing device, a process water feeding device, a primary crushing device, a wood pulp processing device, and a secondary crushing device; wherein, the tobacco processing device is used to process sheet tobacco raw materials into tobacco shreds to form material one, the sheet processing device is used to mix tobacco fragments and tobacco dust to form material two, the process water feeding device is used to supply process water to the primary crushing device, the primary crushing device is used to mix material one and / or material two with process water and wet crush to form material three, the wood pulp processing device is used to process pulp sheets into wood pulp to form material four, and the secondary crushing device is used to mix material three and material four and grind them to form material five.

[0008] In one possible implementation of the first aspect above, the tobacco processing apparatus includes: a tobacco processing machine, which is used to loosen, rehydrate, air-separate, pre-mix, remove impurities, cut, and mix raw tobacco leaves to form material 1; a first feeder, which is used to convey material 1 processed by the tobacco processing machine to a primary crushing device; and a first online moisture meter, which is installed on the first feeder and is used to detect the moisture content of material 1 conveyed on the first feeder.

[0009] In one possible implementation of the first aspect above, the tobacco flake processing device includes: a tobacco flake processor, which is used to loosen, remove impurities from, and mix tobacco flakes and tobacco dust to form material two; a second feeder, which is used to convey material two processed by the tobacco flake processor to a primary crushing device; and a second online moisture meter, which is installed on the second feeder and is used to detect the moisture content of material two conveyed on the second feeder.

[0010] In one possible implementation of the first aspect above, the process water feeding device includes: a process water pump, which is connected to the feed inlet of the primary crushing device via a process water pipe, and a process water flow meter is installed on the process water pipe.

[0011] In one possible implementation of the first aspect above, the primary crushing device includes: a first feed hopper, in which a first agitator is provided, the first feed hopper being used to mix material one and / or material two and process water; a first crushing and grinding hopper, located below the first feed hopper, the feed inlet at the upper end of the first crushing and grinding hopper being connected to the discharge outlet at the lower end of the first feed hopper, the discharge outlet at the lower end of the first crushing and grinding hopper being connected to a first discharge pipe, the first crushing and grinding hopper being used to wet crush material one and / or material two and process water to form material three, the first discharge pipe being used to transport material three to the secondary crushing device, and a first valve being provided on the first discharge pipe.

[0012] In one possible implementation of the first aspect above, a first circulation pipe is connected to the first discharge pipe, a second valve is provided on the first circulation pipe, the end of the first circulation pipe away from the first discharge pipe is connected to the inlet of the first feed hopper, and the first circulation pipe is located between the first valve and the discharge outlet of the first grinding and pulverizing hopper.

[0013] In one possible implementation of the first aspect described above, a liquid level detector is also provided on the first feed hopper.

[0014] In one possible implementation of the first aspect described above, a grinding disc gap adjustment mechanism is also provided on the first grinding and pulverizing chamber.

[0015] In one possible implementation of the first aspect above, the wood pulp processing apparatus includes: a wood pulp processing machine for wet defiberizing, solid-liquid separation, and loosening of pulp board to form material four; a third feeder for conveying material four processed by the wood pulp processing machine to a secondary crushing device; and a third online moisture meter installed on the third feeder for detecting the moisture content of material four conveyed on the third feeder.

[0016] In one possible implementation of the first aspect above, the preparation system for the thick slurry sheet of heated cigarettes of this application further includes a mixing tank, the outlet of the secondary crushing device is connected to the inlet of the mixing tank, and the outlet of the mixing tank is connected to a third discharge pipe.

[0017] In one possible implementation of the first aspect mentioned above, a shut-off valve, a slurry pump, and a three-way valve are provided on the third discharge pipe. The shut-off valve is located between the discharge port of the mixing tank and the slurry pump, and the slurry pump is located between the shut-off valve and the three-way valve. The first port of the three-way valve is used to output material 5, the second port of the three-way valve is used for waste discharge, and the third port of the three-way valve is connected to the feed port of the secondary crushing device through the second circulation pipe.

[0018] In one possible implementation of the first aspect described above, the tobacco processing device and / or the tobacco flake processing device convey material one and / or material two to the primary crushing device via a first conveying mechanism.

[0019] In one possible implementation of the first aspect above, there are multiple secondary crushing devices. The primary crushing device conveys material three to each secondary crushing device through a first distribution device, and the wood pulp processing device conveys material four to each secondary crushing device through a second distribution device.

[0020] In one possible implementation of the first aspect above, the first distribution device includes multiple distribution pipes, which are connected to the secondary crushing device in a one-to-one correspondence, and each distribution pipe is provided with a third valve.

[0021] In one possible implementation of the first aspect above, the second distribution device includes a conveying trough, which conveys material 4 to each secondary crushing device through multiple second conveying mechanisms, and the conveying trough is provided with a flap discharge port corresponding to each second conveying mechanism.

[0022] In one possible implementation of the first aspect above, the preparation system of the thick slurry sheet for heated cigarettes of this application further includes at least one of an additive processing device or an auxiliary material feeding device. The additive processing device is used to mix the binder with the atomizing agent to form material six. The auxiliary material feeding device is used to add the auxiliary materials into a secondary crushing device. The secondary crushing device is used to mix and grind material three, material four, and material six and / or the auxiliary materials to form material five.

[0023] In one possible implementation of the first aspect above, the preparation system of the thick slurry sheet for heated cigarettes of this application further includes at least one of an additive processing device or an auxiliary material feeding device and a final mixing device. The additive processing device is used to mix the binder and the atomizing agent to form material six. The auxiliary material feeding device is used to add the auxiliary materials to the final mixing device. The final mixing device is used to mix material five with material six and / or the auxiliary materials to form the finished slurry.

[0024] In one possible implementation of the first aspect described above, the outlet of the final mixing device is connected to a storage device for storing the finished slurry.

[0025] According to a second aspect of this application, a method for preparing a thick slurry sheet for heated cigarettes is provided, comprising the following steps:

[0026] The raw tobacco leaves are loosened, rehydrated, air-sorted, pre-blended, impurities removed, shredded, and blended to form Material 1, and / or tobacco fragments and dust are mixed to form Material 2.

[0027] Material 1 and / or Material 2, along with process water, are transported to a primary pulverizing unit for mixing and wet pulverization to form Material 3.

[0028] The pulp board is subjected to wet defiberization, solid-liquid separation, and pulp loosening to form material four;

[0029] Material 3 and Material 4 are transported to a secondary crushing unit for mixing and grinding to form Material 5.

[0030] In one possible implementation of the second aspect above, material one and / or material two, along with process water, are conveyed to a primary grinding unit for mixing and wet grinding to form material three, including:

[0031] Detect the moisture content of material one and / or material two, and determine whether the wet basis flow rate of material one and / or material two reaches the preset wet basis flow rate based on the moisture content of material one and / or material two. If the wet basis flow rate of material one and / or material two reaches the preset wet basis flow rate, then material one and / or material two has completed pre-filling.

[0032] Close the valve on the discharge pipe of the primary crushing unit and open the valve on the circulation pipe of the primary crushing unit to inject process water into the primary crushing unit. At the same time, the process water in the primary crushing unit flows into the primary crushing unit through the discharge pipe and circulation pipe in sequence. If the liquid level in the primary crushing unit reaches the pre-filling level, the primary crushing unit completes the pre-filling.

[0033] After material one and / or material two and the primary crushing device have completed pre-filling, material one and / or material and process water are then transported to the primary crushing device for mixing and wet crushing to form material three. At the same time, the valve on the discharge pipe is opened and the opening of the valve on the circulation pipe is reduced, so that material three in the primary crushing device is output to the secondary crushing device through the discharge pipe.

[0034] In one possible implementation of the second aspect above, conveying material one and / or material two, along with process water, to a primary mill for mixing and wet milling to form material three further includes:

[0035] Detect the moisture content of material one and / or material two, adjust the process water supply according to the moisture content of material one and / or material two, and control the moisture content of material three to be 70% to 90%.

[0036] By adjusting the gap between the grinding discs of the primary crushing device, the particle size of material three is controlled to be 100-300 mesh.

[0037] The liquid level in the primary grinding unit is controlled by adjusting the grinding disc speed of the primary grinding unit, the opening degree of the valve on the circulation pipeline, the feeding speed of material one and / or material two, and the process water.

[0038] In one possible implementation of the second aspect above, material three and material four are conveyed to a secondary crushing device for mixing and grinding to form material five, including:

[0039] First, material 3 is conveyed to a secondary crushing device for grinding, and then the ground material 3 is conveyed to a mixing tank for mixing.

[0040] After material three is mixed in the mixing tank, material four and material three in the mixing tank are sent to the secondary crushing device for mixing and grinding to form material five. Material five in the secondary crushing device is then sent to the mixing tank for mixing. After material five in the mixing tank is mixed, material five in the mixing tank is output.

[0041] In one possible implementation of the second aspect above, when the material is conveyed to the secondary crushing device for grinding, the grinding disc gap of the secondary crushing device is reduced, and the liquid level in the secondary crushing device is controlled by adjusting the grinding disc speed of the secondary crushing device and the opening of the valve on the circulation pipeline.

[0042] In one possible implementation of the second aspect above, when materials three and four are conveyed to the secondary crushing device for mixing and grinding, the grinding disc gap of the secondary crushing device is increased, and the liquid level in the secondary crushing device is controlled by adjusting the grinding disc speed of the secondary crushing device and the feeding speed of material three from the mixing tank to the secondary crushing device.

[0043] In one possible implementation of the second aspect above, the process of crushing, separating solids from liquids, dewatering, and loosening the pulp to form material four further includes controlling the moisture content of material four to be less than 80%.

[0044] In one possible implementation of the second aspect above, the method for preparing the thick slurry sheet for heated cigarettes of this application further includes: mixing the binder and the atomizing agent to form material six, and then conveying material three, material four, and material six and / or auxiliary materials to a secondary crushing device for mixing and grinding to form material five; or mixing the binder and the atomizing agent to form material six, and then conveying material five and material six and / or auxiliary materials to a final mixing device for mixing to form the finished slurry.

[0045] The above-mentioned technical solution of this application has at least one of the following beneficial effects:

[0046] The system for preparing sheet pulp for heated cigarettes according to this application includes at least one of a tobacco processing device or a sheet processing device, a process water feeding device, a primary crushing device, a wood pulp processing device, and a secondary crushing device. The tobacco processing device is used to process sheet tobacco raw materials into tobacco shreds to form material one. The sheet processing device is used to mix tobacco fragments and tobacco dust to form material two. The process water feeding device is used to supply process water to the primary crushing device. The primary crushing device is used to mix material one and / or material two with process water and wet crush to form material three. The wood pulp processing device is used to process pulp sheets into wood pulp to form material four. The secondary crushing device is used to mix material three and material four and grind them to form material five. Therefore, by wet pulverizing tobacco raw materials, the preparation of thick slurry sheet for heated cigarettes can be achieved. This method has high pulverization efficiency, good pulverization effect, and high tobacco powder yield, which improves the quality of the finished slurry. Moreover, it eliminates the need for dust removal and dust explosion-proof equipment, and the production site is dust-free. This reduces related infrastructure and equipment investment, as well as maintenance and management work, making it easier to achieve clean production. Some equipment can also be used from the producer's existing equipment, reducing equipment idleness and waste, and lowering costs.

[0047] Furthermore, the method for preparing thick slurry sheet pulp for heated cigarettes according to this application employs wet pulverization of tobacco raw materials to achieve the preparation of thick slurry sheet pulp for heated cigarettes. This method has a good impurity removal effect, improving the purity of tobacco raw materials, high pulverization efficiency, good pulverization effect, and high tobacco powder yield, thus improving the quality of the finished pulp. Moreover, it eliminates the need for dust removal and dust explosion-proof equipment, resulting in a dust-free production site. This reduces related infrastructure and equipment investment, as well as maintenance and management work, facilitating clean production. Some equipment can also be used from the producer's existing equipment, reducing equipment idleness and waste, and lowering costs.

[0048] In addition, unless otherwise specified in the technical solution of this application, the technical solution can be implemented by conventional means in the field. Attached Figure Description

[0049] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0050] Figure 1 This is a schematic diagram of the structure of a system for preparing a thick slurry sheet for heated cigarettes according to one embodiment of this application;

[0051] Figure 2 This is a schematic diagram of the structure of a primary pulverizing device according to one embodiment of this application;

[0052] Figure 3 This is a partial structural diagram of the first feed hopper according to one embodiment of this application;

[0053] Figure 4 This is a schematic diagram of the structure of a two-stage pulverizing device and a mixing tank according to one embodiment of this application;

[0054] Figure 5 This is a flowchart illustrating a method for preparing a thick slurry sheet for heated cigarettes according to one embodiment of this application.

[0055] Figure 6 This is a process flow diagram of a method for preparing a thick slurry sheet for heated cigarettes according to one embodiment of this application.

[0056] Figure 7 This is a flowchart of the wet pulverization and grinding section in a method for preparing thick sheet slurry for heated cigarettes according to one embodiment of this application;

[0057] Figure 8A flowchart illustrating the liquid level control of a primary pulverizing device according to one embodiment of this application;

[0058] Figure 9 A flow chart illustrating the liquid level control of material three in a two-stage grinding device according to one embodiment of this application;

[0059] Figure 10 This is a flow chart illustrating the liquid level control of material three and material four in a two-stage grinding device, according to one embodiment of this application.

[0060] Explanation of the labels in the attached drawings:

[0061] Tobacco processing device 100; first feeder 110; first online moisture meter 120;

[0062] 200 for processing the end product; 210 for the second feeder; 220 for the second online moisture meter;

[0063] Process water feeding device 300; process water pump 310; process water flow meter 320; process water pipe 330;

[0064] Primary crushing device 400; first feed bin 410; first agitator 420; impeller 421; first crushing and grinding bin 430; first discharge pipe 440; first valve 441; first circulation pipe 450; second valve 451; liquid level detector 460;

[0065] Wood pulp processing unit 500; third feeder 510; third online moisture meter 520;

[0066] Secondary crushing unit 600;

[0067] Mixing tank 700; third agitator 710; third discharge pipe 720; shut-off valve 730; slurry pump 740; three-way valve 750; second circulation pipe 760;

[0068] First distribution device 800; distribution pipeline 810; third valve 820;

[0069] Second distribution device 900; conveying trough 910; flap discharge port 911; second conveying mechanism 920;

[0070] First conveying mechanism 1000. Detailed Implementation

[0071] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only some, not all, of the embodiments of this application, and are used merely to explain this application and are not intended to limit it. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0072] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," "outer," "both ends," "both sides," "bottom," and "top," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the elements referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In addition, the terms "first," "second," "upper-level," "lower-level," "main," and "secondary," etc., are used for descriptive purposes only and can be simply used to more clearly distinguish different components, and should not be construed as indicating or implying relative importance.

[0073] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0074] See Figures 1-4 The diagram schematically illustrates a system for preparing thick sheet pulp for heated cigarettes according to an embodiment of this application, comprising: at least one of a tobacco processing device 100 or a sheet processing device 200, a process water feeding device 300, a primary pulverizing device 400, a wood pulp processing device 500, and a secondary pulverizing device 600.

[0075] The tobacco processing device 100 is used to process tobacco raw materials into tobacco shreds to form material one; the tobacco powder processing device 200 is used to mix tobacco fragments and tobacco powder to form material two; the process water feeding device 300 is used to supply process water to the primary crushing device 400; the primary crushing device 400 is used to mix material one and / or material two with process water and wet crush to form material three; the wood pulp processing device 500 is used to process pulp boards into wood pulp to form material four; and the secondary crushing device 600 is used to mix material three and material four and grind them to form material five.

[0076] When preparing the pulp for heated cigarettes, the tobacco processing device 100 processes the raw tobacco into tobacco shreds to form material one; the tobacco powder processing device 200 mixes tobacco fragments with tobacco powder to form material two; material one and / or material two are quantitatively added to the primary crushing device 400, and at the same time, the process water feeding device 300 quantitatively adds process water to the primary crushing device 400; the primary crushing device 400 mixes material one and / or material two with process water and wet-crushes to form material three; the wood pulp processing device 500 processes pulp boards into wood pulp to form material four; material three and material four are then quantitatively added to the secondary crushing device 600; the secondary crushing device 600 mixes material three and material four and grinds them to form material five, thus completing the preparation of the pulp.

[0077] Therefore, the thick slurry sheet preparation system for heated cigarettes of this application has a primary crushing device 400 that can perform wet coarse crushing of the material, and a secondary crushing device 600 that can perform fine crushing and pulping and fiber separation of the material. By wet crushing tobacco raw materials, the thick slurry sheet preparation system for heated cigarettes is realized. It has high crushing efficiency, good crushing effect, and high tobacco powder yield, which improves the quality of the finished slurry. Moreover, it does not require dust removal or dust explosion prevention equipment, and there is no dust in the production site. It reduces the investment in related infrastructure and equipment, as well as maintenance and management work, which facilitates clean production. Some equipment can also be used by the producer, reducing the producer's equipment idleness and waste, and reducing costs.

[0078] In some embodiments, such as Figure 1 As shown, the tobacco processing device 100 includes: a tobacco processing machine (not shown), a first feeder 110, and a first online moisture meter 120. The tobacco processing machine is used to loosen, rehydrate, air-separate, pre-mix, remove impurities, cut, and mix raw tobacco leaves to form material one. The first feeder 110 is used to convey the material one processed by the tobacco processing machine to the primary crushing device 400. The first online moisture meter 120 is installed on the first feeder 110 and is used to detect the moisture content of the material one conveyed on the first feeder 110.

[0079] The tobacco processing machine processes the raw tobacco flakes into Material 1, which is then fed into the first feeder 110. When the material on the first feeder 110 reaches the position corresponding to the first online moisture meter 120, the first online moisture meter 120 detects the moisture content of Material 1. The moisture content is used to determine the wet basis flow rate of Material 1, facilitating the control of the feed rate of Material 1 to the primary crushing device 400 and the pre-filling of Material 1. Thus, by first loosening and re-moistening the raw tobacco flakes and air-classifying them through the tobacco processing machine, subsequent impurity removal is facilitated, preventing contamination of the raw materials after crushing and causing off-flavors in the thin-sheet products, thereby improving the purity of the material. Furthermore, the moisture content detection of Material 1 by the first online moisture meter 120 facilitates the control of the feed rate of Material 1 to the primary crushing device 400 and the pre-filling of Material 1.

[0080] Furthermore, the number of slices in the tobacco bale during tobacco processing can be 5-6 or more, which is beneficial for loosening the tobacco slices and improving the efficiency of subsequent impurity removal. A roller mechanism can be used for loosening and rehydration, on-site air separation, and spectral impurity removal. A tobacco stem shredder can be used, with a shredding width of 0.1mm-0.2mm, to cut the tobacco slices to a fixed length, reducing the length of the tobacco shreds, preventing excessive tangling, and improving the uniformity of tobacco blending and the smoothness of subsequent tobacco feeding. The first feeder 110 can be a belt conveyor, and the first online moisture meter 120 can be a moisture detector as described in existing technology, which will not be detailed here.

[0081] In some embodiments, such as Figure 1 As shown, the tobacco flake processing device 200 includes: a tobacco flake processor (not shown), a second feeder 210, and a second online moisture meter 220. The tobacco flake processor is used to loosen, remove impurities from, and mix tobacco fragments and tobacco dust to form material two. The second feeder 210 is used to convey material two processed by the tobacco flake processor to the primary crushing device 400. The second online moisture meter 220 is installed on the second feeder 210 and is used to detect the moisture content of material two conveyed on the second feeder 210. For example, the tobacco flake processor can use a horizontal ribbon mixing mechanism, a conical mixing mechanism, etc., to mix the materials, and can use pneumatic impurity removal. The second feeder 210 can be a belt conveyor, etc.

[0082] The tobacco scrap processor processes tobacco fragments and dust into Material II, which is then fed into the second feeder 210. When the material on the second feeder 210 reaches the position corresponding to the second online moisture meter 220, the second online moisture meter 220 detects the moisture content of Material II. The moisture content is used to determine the wet basis flow rate of Material II, facilitating the control of the feed rate of Material II to the primary crushing device 400 and the pre-filling of Material II. Thus, the tobacco scrap processor facilitates the removal of impurities from the material, preventing contamination of the raw materials after crushing and improving the purity of the material. Furthermore, the moisture content detection by the second online moisture meter 220 facilitates the control of the feed rate of Material II to the primary crushing device 400 and the pre-filling of Material II.

[0083] In some embodiments, such as Figure 1 As shown, the process water feeding device 300 includes a process water pump 310. The process water pump 310 is connected to the inlet of the primary crushing unit 400 via a process water pipe 330. A process water flow meter 320 is installed on the process water pipe 330. The process water flow meter 320 is used to detect the flow rate of the process water, thereby regulating the supply of process water to the primary crushing unit 400. Thus, by detecting the flow rate of the process water through the process water flow meter 320 and dynamically regulating the supply of process water to the primary crushing unit 400 according to the moisture content requirements of material one and / or material two and material three, better wet crushing is ensured.

[0084] In some embodiments, such as Figure 2 As shown, the primary crushing device 400 includes a first feeding bin 410 and a first crushing and grinding bin 430. The tobacco processing device 100 is used to convey material one to the first feeding bin 410, the tobacco flake processing device 200 is used to convey material two to the first feeding bin 410, and the process water feeding device 300 is used to convey process water to the first feeding bin 410. A first agitator 420 is installed inside the first feeding bin 410, which is used to mix material one and / or material two with the process water. The first grinding and pulping chamber 430 is located below the first feed chamber 410. The feed inlet at the upper end of the first grinding and pulping chamber 430 is connected to the discharge outlet at the lower end of the first feed chamber 410. The discharge outlet at the lower end of the first grinding and pulping chamber 430 is connected to the first discharge pipe 440. The first grinding and pulping chamber 430 is used to wet grind material one and / or material two and process water to form material three. The first discharge pipe 440 is used to transport material three to the secondary grinding device 600. A first valve 441 is provided on the first discharge pipe 440. The first valve 441 is used to open or close the first discharge pipe 440. The first grinding and pulping chamber 430 can be a colloid mill mechanism or a pulping mechanism, etc.

[0085] When the primary pulverizing device 400 is operating, the tobacco processing device 100 and / or the tobacco flake processing device 200, as well as the process water feeding device 300, quantitatively deliver material one and / or material two, along with process water, to the first feed hopper 410. The first agitator 420 mixes material one and / or material two, along with process water, in the first feed hopper 410. Then, the material enters the first pulverizing and grinding hopper 430 from the discharge port at the lower end of the first feed hopper 410 through the inlet of the first pulverizing and grinding hopper 430 for wet pulverizing to form material three. The moisture content of material three is controlled to be 70%–90%, and the particle size is 100–300 mesh. Then, material three is output to the secondary pulverizing device 600 through the first discharge pipe 440. Thus, the wet pulverization of tobacco raw materials to form material three is achieved, with high pulverizing efficiency and good pulverizing effect.

[0086] In some embodiments, such as Figure 2 As shown, a first circulation pipe 450 is connected to the first discharge pipe 440, and a second valve 451 is provided on the first circulation pipe 450. The end of the first circulation pipe 450 away from the first discharge pipe 440 is connected to the inlet of the first feed bin 410. The first circulation pipe 450 is located between the first valve 441 and the discharge port of the first crushing and grinding bin 430.

[0087] To ensure better formation of material three, pre-filling of material one and / or material two, as well as pre-filling of the primary crushing unit 400 (i.e., pre-filling of process water), is required. (Reference) Figure 2 , Figure 7As shown, when material one is conveyed to the position corresponding to the first online moisture meter 120 and / or material two is conveyed to the position corresponding to the second online moisture meter 220, material one and / or material two stop conveying. The first online moisture meter 120 and / or the second online moisture meter 220 respectively detect the moisture content of material one and / or material two. Based on the moisture content of material one and / or material two, it is determined whether the wet basis flow rate of material one and / or material two reaches the preset wet basis flow rate. If the wet basis flow rate of material one and / or material two reaches the preset wet basis flow rate, then material one and / or material two complete the pre-filling. Close the first valve 441 on the first discharge pipe 440 of the primary crushing device 400 and open the second valve 451 on the first circulation pipe 450 of the primary crushing device 400 to inject process water into the primary crushing device 400. The process water in the primary crushing device 400 can only flow into the primary crushing device 400 in sequence through the discharge pipe and the circulation pipe. If the liquid level in the first feed bin 410 of the primary crushing device 400 reaches the pre-filling level, close the process water pump 310 and keep the process water circulating in the primary crushing device 400, then the primary crushing device 400 will complete the pre-filling. After material one and / or material two, as well as the primary crushing unit 400, have completed pre-filling, material one and / or the material, along with process water, are synchronously and quantitatively conveyed to the primary crushing unit 400 for mixing and wet crushing to form material three. Simultaneously, the first valve 441 on the first discharge pipe 440 is opened, and the opening of the second valve 451 on the first circulation pipe 450 is reduced, allowing material three from the primary crushing unit 400 to be output to the secondary crushing unit 600 through the first discharge pipe 440. This process better forms material three, improves its quality, and facilitates subsequent processing. In addition, after material one and / or material two and the primary crushing device 400 have completed pre-filling, since material one and / or material two are a certain distance away from the feed inlet of the first feed bin 410, in order to ensure that material one and / or material two are fed into the primary crushing device 400 synchronously with the process water, the process water can be fed for a certain period of time. When material one and / or material two are transported to the feed inlet of the first feed bin 410, material one and / or material two are then fed into the first feed bin 410 of the primary crushing device 400 synchronously with the process water.

[0088] In some embodiments, such as Figures 2-3As shown, a liquid level detector 460 is also provided on the first feed hopper 410. The liquid level detector 460 is used to detect the liquid level (i.e., material level) in the first feed hopper 410. The liquid level detector 460 may include multiple liquid level sensors arranged at intervals from top to bottom. For example, the liquid level detector 460 includes four pairs of liquid level sensors arranged at intervals from top to bottom, corresponding to the upper liquid level, upper-middle liquid level, lower-middle liquid level, and lower liquid level, respectively. For instance, during the pre-filling of the primary crushing device 400, when the liquid level in the first feed hopper 410 reaches the upper-middle liquid level, the pre-filling of the primary crushing device 400 is completed. Figure 8 As shown, during the preparation of material three, the primary crushing device 400 stops for inspection when the liquid level in the first feed hopper 410 is lower than the lower liquid level; when the liquid level in the first feed hopper 410 is lower than the middle-lower liquid level, the opening of the first valve 441 of the first circulation pipe 450, the grinding disc speed of the primary crushing device 400, and the feeding speed of material one and / or material two, as well as the process water, are adjusted; when the liquid level in the first feed hopper 410 is lower than the middle-upper liquid level, the operation is basically the same as when the liquid level in the first feed hopper 410 is lower than the middle-lower liquid level; when the liquid level in the first feed hopper 410 is lower than the upper liquid level, the opening of the first valve 441 of the first circulation pipe 450, the grinding disc speed of the primary crushing device 400, and the feeding speed of material one and / or material two, as well as the process water, are adjusted; when the liquid level in the first feed hopper 410 is higher than the upper liquid level, the device stops for inspection. Therefore, based on the specific liquid level in the first feed hopper 410, different operations and adjustments are performed to maintain a stable liquid level in the primary crushing unit 400. This ensures that the primary crushing unit 400 can perform crushing more effectively and prevents liquid overflow caused by excessively high liquid levels or material shortages caused by excessively low liquid levels due to fluctuations in process water flow during production. Furthermore, during the crushing process, the load on the drive motors of the primary crushing unit 400 and the secondary crushing unit 600 can also be controlled. When the motor current increases to the warning zone, the material supply is reduced; when the load on the drive motor continues to increase to the alarm line, the feeding is stopped immediately.

[0089] In some embodiments, such as Figures 2-3 As shown, the first agitator 420 includes a stirring shaft (not shown), a drive motor (not shown), and impeller 421. The impeller 421 is mounted on the stirring shaft and located at the lower end within the first feed hopper 410. The drive motor is connected to the stirring shaft. The drive motor drives the stirring shaft to rotate at high speed, which in turn drives the impeller 421 to rotate at high speed, thus mixing the material within the first feed hopper 410. This ensures better mixing of the material within the first feed hopper 410.

[0090] Furthermore, the lower liquid level alarm line in the first feed bin 410 is positioned above the paddle 421. This ensures that the paddle 421 continuously agitates the material within the first feed bin 410, thereby guaranteeing the accuracy of the drive motor load in reflecting the proportion of the mixture within the first feed bin 410.

[0091] Furthermore, a current monitor is installed on the drive motor. This allows the proportion of the mixture in the first feed bin 410 to be determined based on the load of the drive motor, thereby controlling the feeding speed of the tobacco raw materials to the primary crushing device 400 and the emergency stop of the material conveying to the secondary crushing device 600. This prevents excessive tobacco material in the first feed bin 410, avoiding decreased fluidity of the solid-liquid mixture and subsequent accumulation causing blockages.

[0092] In some embodiments, the first grinding and slurry chamber 430 is further provided with a grinding disc gap adjustment mechanism (not shown). This grinding disc gap adjustment mechanism can be either motor-driven or hydraulically driven. Thus, depending on the specific circumstances, the grinding disc gap within the first grinding and slurry chamber 430 can be adjusted via the grinding disc gap adjustment mechanism to achieve better grinding and slurry processing.

[0093] In some embodiments, the tobacco processing apparatus 100 and / or the tobacco flake processing apparatus 200 convey material one and / or material two to the primary crushing apparatus 400 via a first conveying mechanism 1000. The first conveying mechanism 1000 can be a belt conveyor. That is, material one and / or material two are first conveyed to the first conveying structure, and then the first conveying mechanism 1000 conveys material one and / or material two to the primary crushing apparatus 400. This facilitates better conveying of material one and / or material two to the primary crushing apparatus 400, resulting in higher efficiency.

[0094] In some embodiments, such as Figure 1 As shown, the wood pulp processing device 500 includes a wood pulp processor, a third feeder 510, and a third online moisture meter 520. The wood pulp processor is used for wet defiberization, solid-liquid separation, and loosening of the pulp into material four. The third feeder 510 is used to convey the material four processed by the wood pulp processor to the secondary crushing device 600. The third online moisture meter 520 is installed on the third feeder 510 and is used to detect the moisture content of the material four conveyed on the third feeder 510. The wood pulp processor can use hydraulic pulping to defiberize the pulp, can use centrifugal drying, screw extrusion, or other methods for solid-liquid separation, and can use a high-speed rake-type loosening structure to break the material into small pieces of wood pulp. The third feeder 510 can be a belt conveyor, etc.

[0095] The wood pulp processing machine processes pulp boards into material four, controlling the moisture content of material four to be less than 80%. Material four then enters the third feeder 510 for conveying. When material four is conveyed to the position corresponding to the third online moisture meter 520, the third online moisture meter 520 detects the moisture content of material four. Based on the moisture content of material four, the wet basis flow rate is determined, facilitating the control of the feed rate of material four to the secondary crushing device 600. Thus, the wood pulp processing machine processes pulp boards into wood pulp, and the third online moisture meter 520 detects the moisture content of material four, facilitating the control of the feed rate of material four to the secondary crushing device 600.

[0096] In some embodiments, such as Figure 4 As shown, the preparation system for the thick slurry sheet of heated cigarettes according to this application also includes a mixing tank 700. The outlet of the secondary crushing device 600 is connected to the inlet of the mixing tank 700. The outlet of the mixing tank 700 is connected to a third discharge pipe 720. A third agitator 710 is installed inside the mixing tank 700. Specifically, a shut-off valve 730, a slurry pump 740, and a three-way valve 750 are installed on the third discharge pipe 720. The shut-off valve 730 is located between the outlet of the mixing tank 700 and the slurry pump 740. The slurry pump 740 is located between the shut-off valve 730 and the three-way valve 750. The first port of the three-way valve 750 is used to output material 5, the second port of the three-way valve 750 is used for waste discharge, and the third port of the three-way valve 750 is connected to the inlet of the secondary crushing device 600 through a second circulation pipe 760. It should be noted that the secondary crushing device 600 has a structure that is basically the same as that of the primary crushing device 400. The secondary crushing device 600 includes a second feed hopper (not shown) and a second crushing and grinding hopper (not shown). A second agitator (not shown) is installed in the second feed hopper. The second feed hopper is located above the second crushing and grinding hopper. The discharge port at the lower end of the second feed hopper is connected to the feed port at the upper end of the second crushing and grinding hopper. The discharge port of the second crushing and grinding hopper is connected to the feed port at the upper end of the mixing tank 700 through a second discharge pipe (not shown). The grinding discs in the second crushing and grinding hopper can also have their gap adjusted by a corresponding mechanism. The second discharge pipe may not have a circulation pipe and may be connected to the feed port of the second feed hopper. Multiple liquid level sensors (not shown) can also be installed on the second feed hopper, arranged sequentially from bottom to top. The multiple liquid level sensors can correspond to the lower liquid level, lower middle liquid level, upper middle liquid level, and upper liquid level of the second feed hopper, respectively. For details, please refer to the description of the primary crushing device 400 above, which will not be described in detail here.

[0097] refer to Figure 4 , Figure 7As shown, material three first enters the secondary crushing device 600 separately for grinding and fine crushing. After grinding, material three is conveyed to the mixing tank 700 for mixing. After material three is mixed in the mixing tank 700, it is sequentially fed into the secondary crushing device 600 through the third discharge pipe 720, the three-way valve 750, and the second circulation pipe 760. At the same time, the wood pulp processing device 500 adds material four to the secondary crushing device 600. The secondary crushing device 600 mixes and grinds material three and material four to form material five, and conveys material five from the secondary crushing device 600 to the mixing tank 700 for mixing. After material five is mixed in the mixing tank 700, it is output. Furthermore, after material three is mixed in mixing tank 700, it can be pre-filled in secondary crushing device 600 by sequentially conveying it through third discharge pipe 720, three-way valve 750, and second circulation pipe 760. When the liquid level in the second feed hopper of secondary crushing device 600 reaches the lower-middle level, the pre-filling of secondary crushing device 600 is completed. Then, material four is quantitatively added to the second feed hopper of secondary crushing device 600. Material three and material four are mixed and ground into a slurry to form material five. Material five is conveyed to mixing tank 700 through second discharge pipe for further mixing. Thus, material three is first finely crushed by secondary crushing device 600 and then stirred and mixed by mixing tank 700 before being mixed and ground with material four to form material five, resulting in better crushing effect and improved quality of material five.

[0098] Furthermore, such as Figure 9As shown, during the process of material three entering the secondary crushing device 600 for fine grinding, the gap between the grinding discs of the secondary crushing device 600 is reduced. When the liquid level in the second feed hopper is lower than the lower liquid level, the machine is stopped for inspection. When the liquid level in the second feed hopper is lower than the middle-lower liquid level, the opening of the first valve 441 of the first circulation pipe 450 of the primary crushing device 400 and the grinding disc speed of the secondary crushing device 600 are adjusted. When the liquid level in the second feed hopper is lower than the middle-upper liquid level, the operation is basically the same as when the liquid level in the second feed hopper is lower than the middle-lower liquid level. When the liquid level in the second feed hopper is lower than the upper liquid level, the opening of the first valve 441 of the first circulation pipe 450 of the primary crushing device 400 and the grinding disc speed of the secondary crushing device 600 are adjusted. When the liquid level in the second feed hopper is higher than the upper liquid level, the machine is stopped for inspection. Thus, different operations and adjustments are performed according to the specific situation of the liquid level in the second feed hopper to maintain a stable liquid level in the secondary crushing device 600, thereby ensuring that the secondary crushing device 600 can better finely crush material three. In addition, when the opening requirements of the first valve 441 of the first circulation pipe 450 of the first-stage crushing device 400 and the second-stage crushing device 600 are opposite, the requirements of the second-stage crushing device 600 are given priority, thereby reducing the impact of the grinding disc speed fluctuation of the second-stage crushing device 600 on the crushing effect.

[0099] Furthermore, such as Figure 10 As shown, during the process of mixing and grinding materials three and four in the secondary crushing unit 600 to form material five, the grinding disc gap of the secondary crushing unit 600 is increased. When the liquid level in the second feed hopper is lower than the lower liquid level, the machine is stopped for inspection. When the liquid level in the second feed hopper is lower than the middle-lower liquid level, the speed of the slurry pump 740 in the mixing tank 700 and the grinding disc speed of the secondary crushing unit 600 are adjusted. When the liquid level in the second feed hopper is lower than the middle-upper liquid level, the operation is basically the same as when the liquid level in the second feed hopper is lower than the middle-lower liquid level. When the liquid level in the second feed hopper is lower than the upper liquid level, the speed of the slurry pump 740 in the mixing tank 700 and the grinding disc speed of the secondary crushing unit 600 are adjusted. When the liquid level in the second feed hopper is higher than the upper liquid level, the machine is stopped for inspection. Thus, different operations and adjustments are performed according to the specific liquid level in the second feed hopper to maintain a stable liquid level in the secondary crushing unit 600, thereby ensuring that the secondary crushing unit 600 can better mix and grind materials three and four into fibers.

[0100] In some embodiments, such as Figure 1As shown, there are multiple secondary crushing units 600. The primary crushing unit 400 conveys material 3 to each of the secondary crushing units 600 through the first distribution device 800. The wood pulp processing unit 500 conveys material 4 to each of the secondary crushing units 600 through the second distribution device 900. The secondary crushing units 600 can be in two groups, each group consisting of two secondary crushing units 600, and each secondary crushing unit 600 is connected to a corresponding mixing tank 700. After the primary crushing unit 400 finishes feeding material to one of the secondary crushing units 600 through the first distribution device 800, it switches to feeding the remaining secondary crushing units 600 sequentially through the first distribution device 800. This improves production efficiency, etc.

[0101] Furthermore, such as Figure 1 As shown, the first distribution device 800 includes multiple distribution pipes 810, each of which is connected to a secondary crushing device 600. Each distribution pipe 810 is equipped with a third valve 820. Thus, each distribution pipe 810 is controlled by an individual valve, which facilitates individual feeding of each secondary crushing device 600, resulting in higher efficiency and greater safety and reliability.

[0102] Furthermore, such as Figure 1 As shown, the second distribution device 900 includes a conveying trough 910, which conveys material 4 to each of the secondary crushing devices 600 via multiple second conveying mechanisms 920. The conveying trough 910 is equipped with a flap discharge port 911 corresponding to each second conveying mechanism 920. The second conveying mechanisms 920 can be belt conveyors, and one second conveying mechanism 920 can supply material to two secondary crushing devices 600. The wood pulp processing device 500 conveys material 4 to the conveying trough 910. When material 4 in the conveying trough 910 reaches the position corresponding to the second conveying mechanism 920, the flap discharge port on the conveying trough 910 opens, allowing material 4 to fall onto the second conveying mechanism 920, which then conveys material 4 to the corresponding secondary crushing device 600. This results in a more compact, stable, and efficient structure.

[0103] In some embodiments, the system for preparing thick sheet slurry for heated cigarettes according to this application further includes at least one of an additive processing device (not shown) or an auxiliary material feeding device (not shown). The additive processing device is used to mix the binder and the atomizing agent to form material six, and the auxiliary material feeding device is used to add the auxiliary materials to a secondary grinding device 600. The secondary grinding device 600 is used to mix and grind materials three, four, and six and / or the auxiliary materials to form material five. That is, depending on different requirements, the slurry may contain additives and / or auxiliary materials. For example, the additive processing device can mix the binder and atomizing agent to form material six, and the secondary crushing device 600 can mix and grind materials three, four, and six to form material five; the auxiliary material feeding device can add auxiliary materials to the secondary crushing device 600, and the secondary crushing device 600 can mix and grind materials three, four, and auxiliary materials to form the finished slurry; the additive processing device can mix the binder and atomizing agent to form material six, and the auxiliary material feeding device can add auxiliary materials to the secondary crushing device 600, and the secondary crushing device 600 can mix and grind materials three, four, and six with auxiliary materials to form material five. Thus, it meets different production needs and has a wide range of applications.

[0104] In some embodiments, the preparation system for thick sheet slurry for heated cigarettes of this application further includes at least one of an additive processing device (not shown) or an auxiliary material feeding device (not shown) and a final mixing device (not shown). The additive processing device is used to mix the binder and the atomizing agent to form material six, the auxiliary material feeding device is used to add the auxiliary materials to the final mixing device, and the final mixing device is used to mix material five with material six and / or the auxiliary materials to form the finished slurry.

[0105] In other words, depending on different needs, additives and / or auxiliary materials can be added to material five. For example, the additive processing device can mix the binder and atomizing agent to form material six, and the final mixing device can mix material five and material six to form the finished slurry; the auxiliary material feeding device can add the auxiliary materials to the final mixing device, and the final mixing device can mix material five and the auxiliary materials to form the finished slurry; the additive processing device can mix the binder and atomizing agent to form material six, and the auxiliary material feeding device can add the auxiliary materials to the final mixing device, and the final mixing device can mix material five, material six, and the auxiliary materials to form the finished slurry. Therefore, it can meet different production needs and has a wide range of applications.

[0106] Furthermore, the outlet of the final mixing device is connected to a storage device (not shown) for storing the finished slurry. This facilitates the storage of the prepared finished slurry.

[0107] In some embodiments, the additive processing apparatus may include a mixing mechanism (not shown) and a feeding mechanism (not shown). The mixing mechanism mixes the binder and atomizing agent to form material six, and the feeding mechanism then adds material six to a secondary pulverizing device 600 or a final mixing device. The selected binder should be insoluble in the selected atomizing agent. A certain amount of atomizing agent is first added to the mixing mechanism, which then starts mixing and slowly adds the corresponding binder to form material six (suspension). The feeding mechanism may employ offline weighing or a weight-reducing feeder, etc., and the binder should be insoluble in the atomizing agent. This ensures better mixing of the binder and atomizing agent to form material six, improving the quality of material six.

[0108] See Figure 5 As shown, the method for preparing a thick slurry sheet for heated cigarettes, provided in the embodiments of this application, can utilize the aforementioned system for preparing a thick slurry sheet for heated cigarettes, and includes the following steps:

[0109] The raw tobacco leaves are loosened, rehydrated, air-sorted, pre-blended, impurities removed, shredded, and blended to form Material 1, and / or tobacco fragments and dust are mixed to form Material 2.

[0110] Material 1 and / or Material 2, along with process water, are transported to a primary pulverizing unit for mixing and wet pulverization to form Material 3.

[0111] The pulp board is subjected to wet defiberization, solid-liquid separation, and pulp loosening to form material four;

[0112] Material 3 and Material 4 are transported to a secondary crushing unit for mixing and grinding to form Material 5.

[0113] Therefore, the preparation method of the thick slurry sheet for heated cigarettes in this application adopts a primary crushing device to first wet coarsely crush the material, and then a secondary crushing device to finely crush and grind the material into fibers. Thus, by wet crushing the tobacco raw materials, the preparation of the thick slurry sheet for heated cigarettes is achieved. The operation is convenient and quick, and it can effectively remove impurities from the tobacco raw materials. The impurity removal effect is good, which improves the purity of the tobacco raw materials. The crushing efficiency is high, the crushing effect is good, the tobacco powder yield is high, and the quality of the finished slurry is improved. Moreover, there is no need for dust removal or dust explosion prevention equipment, and there is no dust in the production site. This reduces the investment in related infrastructure and equipment, as well as maintenance and management work, which facilitates clean production. Some equipment can also be used by the producer's existing equipment, reducing the producer's equipment idleness and waste, and reducing costs.

[0114] In some embodiments, the method for preparing the thick slurry sheet for heated cigarettes of this application further includes: mixing the binder and the atomizing agent to form material six, and then conveying material three, material four, and material six and / or auxiliary materials to a secondary pulverizing device for mixing and grinding to form material five; or mixing the binder and the atomizing agent to form material six, and then conveying material five and material six and / or auxiliary materials to a final mixing device for mixing to form the finished slurry.

[0115] In other words, additives and / or auxiliary materials can be added to the slurry according to different needs. For example, the binder and atomizing agent are mixed to form material six, and then materials three, four, and six are fed to a secondary grinding unit for mixing and grinding to form material five; materials three, four, and auxiliary materials are fed to a secondary grinding unit for mixing and grinding to form material five; the binder and atomizing agent are mixed to form material six, and then materials three, four, six, and auxiliary materials are fed to a secondary grinding unit for mixing and grinding to form material five; material five and auxiliary materials are fed to a final mixing unit for mixing to form the finished slurry; the binder and atomizing agent are mixed to form material six, and then materials five and six are fed to a final mixing unit for mixing to form the finished slurry; the binder and atomizing agent are mixed to form material six, and then materials five, six, and auxiliary materials are fed to a final mixing unit for mixing to form the finished slurry. This satisfies different production needs and has a wide range of applications.

[0116] In some embodiments, reference Figure 6 As shown, the preparation method of the thick slurry sheet pulp for heated cigarettes in this application can be roughly divided into six stages: sheet tobacco raw material processing stage, tobacco fragment and tobacco dust processing stage, wood pulp preparation stage, atomizing agent and binder mixing stage, tobacco raw material mixing, crushing and grinding stage, and final mixing and storage stage. The tobacco raw material processing section includes: raw material unpacking, tobacco slicing, loosening and rehydration, on-site air separation, tobacco pre-blending, spectral impurity removal, tobacco shredding, and tobacco shred pre-mixing to form material one; the tobacco fragment and dust processing section includes: raw material unpacking, loosening, air conveying for impurity removal, and tobacco shred pre-mixing to form material two; the wood pulp preparation section includes: quantitative pulp board feeding, coarse pulp board crushing, hydraulic pulping, solid-liquid separation, and pulp loosening to form material four; the atomizing agent and binder mixing section includes: quantitative feeding of atomizing agent, quantitative feeding of binder, and stirring and mixing to form material six; the tobacco raw material mixing, crushing and grinding section includes: quantitative feeding of material one, quantitative feeding of material two, quantitative feeding of process water, wet crushing to form material three, quantitative feeding of material four, grinding and separating into shreds, and temporary storage of pulp; the final mixing and storage section includes: quantitative feeding of material five, quantitative feeding of material six, quantitative feeding of auxiliary materials, stirring and mixing to form finished pulp, and pulp storage.

[0117] In some embodiments, reference Figure 7As shown, material one and / or material two, along with process water, are conveyed to a primary grinding unit for mixing and wet grinding to form material three, including:

[0118] Detect the moisture content of material one and / or material two, and determine whether the wet basis flow rate of material one and / or material two reaches the preset wet basis flow rate based on the moisture content of material one and / or material two. If the wet basis flow rate of material one and / or material two reaches the preset wet basis flow rate, then material one and / or material two has completed pre-filling.

[0119] Close the valve on the discharge pipe of the primary crushing unit and open the valve on the circulation pipe of the primary crushing unit to inject process water into the primary crushing unit. At the same time, the process water in the primary crushing unit flows into the primary crushing unit through the discharge pipe and circulation pipe in sequence. If the liquid level in the primary crushing unit reaches the pre-filling level, the primary crushing unit completes the pre-filling.

[0120] After material one and / or material two and the primary crushing device have completed pre-filling, material one and / or material and process water are then transported to the primary crushing device for mixing and wet crushing to form material three. At the same time, the valve on the discharge pipe is opened and the opening of the valve on the circulation pipe is reduced, so that material three in the primary crushing device is output to the secondary crushing device through the discharge pipe.

[0121] In other words, material one and / or material two are pre-filled first, along with the pre-filling of the primary crushing unit. Then, material one and / or material two, along with process water, are conveyed to the primary crushing unit for mixing and wet crushing to form material three. This ensures better formation of material three, improves its quality, and facilitates subsequent processing. Furthermore, after material one and / or material two, as well as the primary crushing unit, have completed pre-filling, since material one and / or material two are some distance from the inlet of the first feed hopper, the process water supply can be delayed for a certain period to ensure that material one and / or material two are supplied to the primary crushing unit synchronously with the process water. When material one and / or material two arrive at the inlet of the first feed hopper, they are then supplied to the first feed hopper of the primary crushing unit synchronously with the process water.

[0122] In some embodiments, material one and / or material two, along with process water, are fed to a primary mill for mixing and wet milling to form material three. The method further includes: detecting the moisture content of material one and / or material two, adjusting the supply of process water according to the moisture content of material one and / or material two, and controlling the moisture content of material three to be 70%–90%. This ensures the quality of material three and facilitates better preparation of subsequent materials.

[0123] In some embodiments, material one and / or material two, along with process water, are fed to a primary mill for mixing and wet milling to form material three. The method further includes controlling the particle size of material three to be 100–300 mesh by adjusting the grinding disc gap of the primary mill. This ensures the quality of material three and facilitates better preparation of subsequent materials.

[0124] In some embodiments, reference Figure 8 As shown, material one and / or material two, along with process water, are transported to the primary crusher for mixing and wet crushing to form material three. The process also includes controlling the liquid level in the primary crusher by adjusting the grinding disc speed of the primary crusher, the opening of the valve on the circulation pipeline, and the feeding speed of material one and / or material two, as well as the process water.

[0125] During the preparation of material three in the primary crushing unit, the machine is stopped for inspection when the liquid level in the first feed hopper is lower than the lower level; when the liquid level in the first feed hopper is lower than the middle-lower level, the opening of the first valve in the first circulation pipe, the grinding disc speed of the primary crushing unit, and the feeding rate of material one and / or material two, as well as the process water, are adjusted; when the liquid level in the first feed hopper is lower than the middle-upper level, the operation is basically the same as when the liquid level in the first feed hopper is lower than the middle-lower level; when the liquid level in the first feed hopper is lower than the upper level, the opening of the first valve in the first circulation pipe, the grinding disc speed of the primary crushing unit, and the feeding rate of material one and / or material two, as well as the process water, are adjusted; when the liquid level in the first feed hopper is higher than the upper level, the machine is stopped for inspection. Therefore, different operations and adjustments are performed according to the specific liquid level in the first feed hopper to maintain a stable liquid level in the primary crushing unit, thereby ensuring better crushing performance and preventing liquid overflow due to excessively high liquid levels or material shortages due to excessively low liquid levels caused by fluctuations in the process water flow during production.

[0126] In some embodiments, reference Figure 7 As shown, material three and material four are conveyed to a secondary crushing unit for mixing and grinding to form material five, which includes:

[0127] First, material 3 is conveyed to a secondary crushing device for grinding, and then the ground material 3 is conveyed to a mixing tank for mixing.

[0128] After material three is mixed in the mixing tank, material four and material three in the mixing tank are sent to the secondary crushing device for mixing and grinding to form material five. Material five in the secondary crushing device is then sent to the mixing tank for mixing. After material five in the mixing tank is mixed, material five in the mixing tank is output.

[0129] In other words, material three is first finely crushed by a two-stage crushing device and then stirred and mixed in a mixing tank. Then, material three is mixed with material four and ground into a slurry to form material five, thus achieving better crushing effect and improving the quality of material five.

[0130] In some embodiments, when material 3 is conveyed to the secondary grinding unit for grinding, the grinding disc gap of the secondary grinding unit is reduced, and the liquid level in the secondary grinding unit is controlled by adjusting the grinding disc speed and the opening degree of the valve on the circulation pipeline. Specifically, as shown... Figure 9 As shown, during the process of material three entering the secondary crushing device for fine grinding, the gap between the grinding discs of the secondary crushing device is reduced. When the liquid level in the second feed hopper is lower than the lower liquid level, the machine is stopped for inspection. When the liquid level in the second feed hopper is lower than the middle-lower liquid level, the opening of the first valve of the first circulation pipe of the primary crushing device and the grinding disc speed of the secondary crushing device are adjusted. When the liquid level in the second feed hopper is lower than the middle-upper liquid level, the operation is basically the same as when the liquid level in the second feed hopper is lower than the middle-lower liquid level. When the liquid level in the second feed hopper is lower than the upper liquid level, the opening of the first valve of the first circulation pipe of the primary crushing device and the grinding disc speed of the secondary crushing device are adjusted. When the liquid level in the second feed hopper is higher than the upper liquid level, the machine is stopped for inspection. Thus, different operations and adjustments are performed according to the specific liquid level in the second feed hopper to maintain a stable liquid level in the secondary crushing device, thereby ensuring that the secondary crushing device can better finely crush material three. In addition, when the opening requirements of the first valve of the first circulation pipe of the first-stage crushing device and the second-stage crushing device are opposite, the requirements of the second-stage crushing device are given priority, thereby reducing the impact of the grinding disc speed fluctuation of the second-stage crushing device on the crushing effect.

[0131] In some embodiments, when materials three and four are fed to the secondary grinding unit for mixing and slurrying, the grinding disc gap of the secondary grinding unit is increased, and the liquid level in the secondary grinding unit is controlled by adjusting the grinding disc speed of the secondary grinding unit and the feeding speed of material three from the mixing tank to the secondary grinding unit. Specifically, as shown in the figure... Figure 10As shown, during the process of mixing and grinding materials three and four in the secondary crushing unit to form material five, the gap between the grinding discs of the secondary crushing unit is increased. When the liquid level in the second feed hopper is lower than the lower liquid level, the machine is stopped for inspection. When the liquid level in the second feed hopper is lower than the middle-lower liquid level, the speed of the slurry pump in the mixing tank and the speed of the grinding disc in the secondary crushing unit are adjusted. When the liquid level in the second feed hopper is lower than the middle-upper liquid level, the operation is basically the same as when the liquid level in the second feed hopper is lower than the middle-lower liquid level. When the liquid level in the second feed hopper is lower than the upper liquid level, the speed of the slurry pump in the mixing tank and the speed of the grinding disc in the secondary crushing unit are adjusted. When the liquid level in the second feed hopper is higher than the upper liquid level, the machine is stopped for inspection. Therefore, different operations and adjustments are performed according to the specific situation of the liquid level in the second feed hopper to maintain a stable liquid level in the secondary crushing unit, thereby ensuring that the secondary crushing unit can better mix and grind materials three and four into fibers.

[0132] In some embodiments, the process of crushing, separating, dewatering, and loosening the pulp to form material four further includes controlling the moisture content of material four to be less than 80%. This ensures the quality of material four and facilitates better preparation of subsequent materials.

[0133] Based on the various embodiments of this application described above, in the absence of explicit denial or conflict, the technical features of one embodiment may be advantageously combined with one or more other embodiments.

[0134] The above descriptions are merely some embodiments of this application, used only to illustrate the technical solutions of this application, and not to limit it. It should be understood that those skilled in the art can make improvements or substitutions based on the above descriptions without departing from the inventive concept of this application, and all such improvements and substitutions should fall within the protection scope of the appended claims. In this case, all details can be replaced with equivalent elements, and the materials, shapes, and sizes can also be arbitrary.

Claims

1. A system for preparing a thick slurry sheet for heated cigarettes, characterized in that, include: At least one of the following: tobacco processing equipment or tobacco chip processing equipment; process water feeding equipment; primary crushing equipment; wood pulp processing equipment; and secondary crushing equipment. The tobacco processing device is used to process tobacco raw materials into tobacco shreds to form material one; the tobacco powder processing device is used to mix tobacco fragments and tobacco powder to form material two; the process water feeding device is used to supply process water to the primary crushing device; the primary crushing device is used to mix material one and / or material two with process water and wet crush to form material three; the wood pulp processing device is used to process pulp boards into wood pulp to form material four; and the secondary crushing device is used to mix material three and material four and grind them to form material five.

2. The system for preparing thick sheet slurry for heated cigarettes according to claim 1, characterized in that, The tobacco processing device includes: A tobacco processing machine is used to loosen and rehydrate raw tobacco leaves, air classify, pre-mix, remove impurities, cut into shreds, and mix into the material one. The first feeder is used to convey the material processed by the tobacco processing machine to the primary crushing device; A first online moisture meter is installed on the first feeder and is used to detect the moisture content of the material being conveyed on the first feeder.

3. The system for preparing thick sheet slurry for heated cigarettes according to claim 1, characterized in that, The chip processing device includes: A tobacco scrap processing machine, which is used to loosen, remove impurities from, and mix tobacco scraps and tobacco dust to form the second material. The second feeder is used to convey the material processed by the flake processor to the primary crushing device; The second online moisture meter is installed on the second feeder and is used to detect the moisture content of the material being conveyed on the second feeder.

4. The system for preparing thick sheet slurry for heated cigarettes according to claim 1, characterized in that, The process water feeding device includes: A process water pump is connected to the feed inlet of the primary crushing device via a process water pipe, and a process water flow meter is installed on the process water pipe.

5. The system for preparing thick sheet slurry for heated cigarettes according to claim 1, characterized in that, The primary crushing device includes: The first feed hopper is equipped with a first agitator. The first feed hopper is used to mix and stir the material one and / or the material two and the process water. The first grinding and pulverizing chamber is located below the first feeding chamber. The feed inlet at the upper end of the first grinding and pulverizing chamber is connected to the discharge outlet at the lower end of the first feeding chamber. The discharge outlet at the lower end of the first grinding and pulverizing chamber is connected to a first discharge pipe. The first grinding and pulverizing chamber is used to wet grind the material one and / or the material two and process water to form the material three. The first discharge pipe is used to transport the material three to the secondary grinding device. A first valve is provided on the first discharge pipe.

6. The system for preparing thick sheet slurry for heated cigarettes according to claim 5, characterized in that, A first circulation pipe is connected to the first discharge pipe, and a second valve is installed on the first circulation pipe. The end of the first circulation pipe away from the first discharge pipe is connected to the inlet of the first feed hopper. The first circulation pipe is located between the first valve and the discharge outlet of the first grinding and pulverizing hopper. The first feed hopper is also equipped with a liquid level detector; The first grinding and pulverizing chamber is also equipped with a grinding disc gap adjustment mechanism.

7. The system for preparing thick sheet slurry for heated cigarettes according to claim 1, characterized in that, The wood pulp processing apparatus includes: Wood pulp processing machine, the wood pulp processing machine is used to perform wet defiberization, solid-liquid separation and pulp loosening to form the material four; The third feeder is used to convey the material processed by the wood pulp processing machine to the secondary crushing device; The third online moisture meter is installed on the third feeder and is used to detect the moisture content of the material being conveyed on the third feeder.

8. The system for preparing thick sheet slurry for heated cigarettes according to claim 1, characterized in that, It also includes a mixing tank, the discharge port of the secondary crushing device is connected to the inlet of the mixing tank, and the discharge port of the mixing tank is connected to a third discharge pipe; The third discharge pipe is equipped with a shut-off valve, a slurry pump, and a three-way valve. The shut-off valve is located between the discharge port of the mixing tank and the slurry pump. The slurry pump is located between the shut-off valve and the three-way valve. The first port of the three-way valve is used to output the material, the second port of the three-way valve is used for waste discharge, and the third port of the three-way valve is connected to the feed port of the secondary crushing device through the second circulation pipe.

9. The system for preparing thick sheet slurry for heated cigarettes according to claim 1, characterized in that, The tobacco processing device and / or the chip processing device convey the material one and / or the material two to the primary crushing device through the first conveying mechanism; The secondary crushing device comprises multiple units. The primary crushing device conveys material three to each of the secondary crushing devices through a first distribution device. The wood pulp processing device conveys material four to each of the secondary crushing devices through a second distribution device. The first distribution device includes multiple distribution pipes, each of which is connected to the secondary crushing device in a one-to-one correspondence, and each of the distribution pipes is provided with a third valve; The second distribution device includes a conveying trough, which conveys the material to each of the secondary crushing devices through multiple second conveying mechanisms. The conveying trough is provided with a flap discharge port corresponding to each of the second conveying mechanisms.

10. The system for preparing thick sheet slurry for heated cigarettes according to claim 1, characterized in that, It also includes at least one of an additive processing device or an auxiliary material feeding device, wherein the additive processing device is used to mix the binder with the atomizing agent to form material six, the auxiliary material feeding device is used to add the auxiliary material into the secondary crushing device, and the secondary crushing device is used to mix and grind material three, material four and material six and / or auxiliary material to form material five.

11. The system for preparing thick sheet slurry for heated cigarettes according to claim 1, characterized in that, It also includes at least one of an additive processing device or an auxiliary material feeding device and a final mixing device, wherein the additive processing device is used to mix the binder and the atomizing agent to form material six, the auxiliary material feeding device is used to add the auxiliary materials into the final mixing device, and the final mixing device is used to mix material five with material six and / or the auxiliary materials to form a finished slurry. The discharge port of the final mixing device is connected to a storage device for storing the finished slurry.

12. A method for preparing a thick slurry sheet for heated cigarettes, characterized in that, Includes the following steps: The raw tobacco leaves are loosened, rehydrated, air-sorted, pre-blended, impurities removed, shredded, and blended to form Material 1, and / or tobacco fragments and dust are mixed to form Material 2. The material one and / or the material two, along with process water, are transported to a primary pulverizing unit for mixing and wet pulverization to form material three. The pulp board is subjected to wet defiberization, solid-liquid separation, and pulp loosening to form material four; Material 3 and Material 4 are transported to a secondary crushing device for mixing and grinding to form Material 5.

13. The method for preparing thick sheet slurry for heated cigarettes according to claim 12, characterized in that, Material 1 and / or Material 2, along with process water, are transported to a primary pulverizing unit for mixing and wet pulverization to form Material 3, which includes: The moisture content of material one and / or material two is detected, and the wet basis flow rate of material one and / or material two is determined based on the moisture content of material one and / or material two to see if it reaches the preset wet basis flow rate. If the wet basis flow rate of material one and / or material two reaches the preset wet basis flow rate, then material one and / or material two is pre-filled. Close the valve on the discharge pipe of the primary crushing device and open the valve on the circulation pipe of the primary crushing device to inject process water into the primary crushing device. At the same time, the process water in the primary crushing device flows into the primary crushing device in sequence through the discharge pipe and the circulation pipe. If the liquid level in the primary crushing device reaches the pre-filling level, the primary crushing device completes the pre-filling. After the material one and / or the material two and the primary crushing device have completed pre-filling, the material one and / or the material and process water are transported to the primary crushing device for mixing and wet crushing to form the material three. At the same time, the valve on the discharge pipe is opened and the opening of the valve on the circulation pipe is reduced, so that the material three in the primary crushing device is output to the secondary crushing device through the discharge pipe.

14. The method for preparing thick sheet slurry for heated cigarettes according to claim 13, characterized in that, The process further includes conveying material one and / or material two, along with process water, to a primary crusher for mixing and wet crushing to form material three. The moisture content of material one and / or material two is detected, and the water supply of process water is adjusted according to the moisture content of material one and / or material two to control the moisture content of material three to be 70% to 90%. By adjusting the grinding disc gap of the primary crushing device, the particle size of the third material is controlled to be 100-300 mesh. The liquid level in the primary grinding device is controlled by adjusting the grinding disc speed of the primary grinding device, the opening degree of the valve on the circulation pipeline, the feeding speed of material one and / or material two, and the process water.

15. The method for preparing thick sheet slurry for heated cigarettes according to claim 14, characterized in that, Material 3 and Material 4 are fed to a secondary crushing unit for mixing and grinding to form Material 5, which includes: First, the material 3 is conveyed to the secondary crushing device for grinding, and then the ground material 3 is conveyed to the mixing tank for mixing. After material three is mixed in the mixing tank, material four and material three in the mixing tank are transported to the secondary crushing device for mixing and grinding to form material five. Material five in the secondary crushing device is then transported to the mixing tank for mixing. After material five in the mixing tank is mixed, material five in the mixing tank is output.

16. The method for preparing thick sheet slurry for heated cigarettes according to claim 15, characterized in that, When the material is conveyed to the secondary grinding device for grinding, the gap between the grinding discs of the secondary grinding device is reduced, and the liquid level in the secondary grinding device is controlled by adjusting the grinding disc speed and the opening of the valve on the circulation pipeline. When material three and material four are conveyed to the secondary crushing device for mixing and grinding, the grinding disc gap of the secondary crushing device is increased, and the liquid level in the secondary crushing device is controlled by adjusting the grinding disc speed of the secondary crushing device and the feeding speed of material three from the mixing tank to the secondary crushing device.

17. The method for preparing thick sheet slurry for heated cigarettes according to claim 12, characterized in that, The process of crushing the slurry, separating the solids and liquids, dewatering, and loosening the slurry to form material four also includes: The moisture content of the fourth material is controlled to be less than 80%.

18. The method for preparing a thick slurry sheet for heated cigarettes according to claim 12, characterized in that, Also includes: The adhesive and atomizing agent are mixed to form material six. Then, material three, material four, and material six and / or auxiliary materials are conveyed to the secondary crushing device for mixing and grinding to form material five. Alternatively, the adhesive and atomizing agent can be mixed to form material six, and then material five and material six and / or auxiliary materials can be transported to the final mixing device for mixing to form the finished slurry.

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