Production equipment for preparing liquid controllable pellets through condensation method

Abstract

The utility model discloses production equipment for preparing liquid controllable pellets through a condensation method, and relates to the technical field of cigarettes. Comprising a pellet outer wall forming liquid storage and conveying system, a pellet core liquid storage and conveying system, a pellet cooling forming mechanism, a cooling liquid circulating system and an outer wall forming liquid circulating system, the pellet outer wall forming liquid storage and conveying system comprises an outer wall forming liquid storage tank (2), a drainage tube (3) and a forming liquid pump (4); the pellet core liquid storage and conveying system comprises a core liquid storage tank (5), a liquid conveying pipe and a core liquid pump (6); the pellet cooling forming mechanism comprises a double-channel forming dripper (7), a dripping groove (8) and a forming pipe (9); the outer wall forming liquid circulating system is arranged to be of an up-down split type structure, and impurity bubbles can be prevented from entering a water dropper; the cooling liquid circulating system can accurately control the temperature and the flow speed of cooling liquid; the heating and heat preservation component is arranged on the water dropper, so that uniform heat distribution can be ensured, and the core liquid is more uniformly wrapped by the forming liquid.

Description

Technical Field

[0001] The utility model relates to the technical field of cigarette particle preparation, in particular to production equipment for preparing liquid controllable micro-pills by a condensation method. Background Art

[0002] In recent years, the tobacco industry has seen rapid development of cigarette flavoring technology, and there are many new products, including cigarette popping beads, microcapsules, nanoparticles, powdered particles, etc., which are emerging in an endless stream; among them, popping beads and microcapsules are a general term for the technology of using membrane materials to wrap solids or liquids to form tiny particles with a particle size in the micrometer or millimeter range. The wrapped objects are isolated from the external environment and are released when needed by breaking the wall, so that different substances that could not be mixed together can be processed in the same system. The particle size of the controlled-release microcapsules is less than 2mm, and they contain oil-based flavors and fragrances. It can be used as a particle or in combination with particles, which can solve the problem of short-lasting fragrance of particles. However, due to its high production cost, it is difficult to apply. It is urgent to provide a production equipment to increase production speed and reduce production costs. Summary of the invention

[0003] In order to solve the above problems, the purpose of the utility model is to provide a production equipment for preparing liquid controllable micro-pellets by condensation method, and to prepare a new type of controlled-release micro-pellets for tobacco with small particle size and oil-like flavors and fragrances wrapped inside. The controlled-release micro-pellets can be used as ordinary independent bursting beads, and can also be used in combination with solid particles of plant matrix, so as to realize the gradual release of fragrance of filter rods under mixed use conditions, and solve the problem of short fragrance holding time of single bursting beads or particles.

[0004] The technical solution of the utility model is a production device for preparing liquid controllable micropills by a condensation method, which comprises a micropill outer wall molding liquid storage and delivery system, a micropill core liquid storage and delivery system, a micropill cooling molding mechanism, a cooling liquid circulation system and an outer wall molding liquid circulation system.

[0005] The micro-pellet outer wall molding liquid storage and transportation system includes an outer wall molding liquid storage box 2 arranged on the top of the equipment body 1, a vertically arranged drainage pipe 3 and a molding liquid pump 4 arranged on the front of the equipment body 1, the molding liquid pump 4 is connected to the drainage pipe 3 in a one-to-one correspondence, and the molding liquid pumps 4 are arranged in parallel on the same horizontal plane, and their number can be increased or decreased according to production needs.

[0006] The microcapsule core liquid storage and delivery system includes a core liquid storage box 5 arranged on the back of the equipment body 1, an infusion tube penetrating the equipment body 1, and a core liquid pump 6 arranged at the front end of the equipment body 1. The core liquid pump 6 is connected to the infusion tube in a one-to-one correspondence. The core liquid pump 6 is arranged below the molding liquid pump 4 and is also arranged in parallel on the same horizontal plane. The number of core liquid pumps 6 can be increased or decreased according to production needs.

[0007] The micropellet cooling molding mechanism includes a double-channel molding dripper 7, a dripping trough 8, and a molding tube 9; the molding dripper 7 includes five parts, which are, from top to bottom, a core liquid channel including a vertical hollow tube 10-1 and a vertical end 10-2, an upper hollow cylinder 10 provided with an axial outer layer heating and heat preservation component 10-3, a lower hollow cylinder 11 matched and connected to the upper hollow cylinder 10 inside and outside, an inverted truncated cone 12 with a through hole 12-1 arranged at the axis, and a molding liquid channel connected to the side of the lower hollow cylinder 11 and provided with a horizontal hollow tube 11-1 and a horizontal end 11-2.

[0008] Among them, the inner hollow parts of the upper hollow cylinder 10 and the lower hollow cylinder 11 are coaxial and have the same diameter as the through hole 12-1 inside the inverted cone 12, and the diameter of the vertical hollow tube 10-1 connected to the vertical end 10-2 is smaller than the diameter of the through hole 12-1 in the upper hollow cylinder 10, the lower hollow cylinder 11 and the inverted cone 12, and the vertical hollow tube 10-1 is coaxially arranged with the through hole 12-1, and an annular space is left between the outer wall of the vertical hollow tube 10-1 and the inner wall of the through hole 12-1 on the same horizontal plane; the horizontal hollow tube 11-1 connected to the horizontal end 11-2 vertically connects the annular space between the vertical hollow tube 10-1 and the through hole 12-1; the dripping groove 8 is arranged under the forming dripper 7 The upper edge of the molding dripper 7 is flush with the lower outlet of the molding dripper 7, and the dripping tank 8 is filled with coolant; a plurality of brackets 13 are arranged on the upper edge of the dripping tank 8, and the height of the brackets 13 is adjustable, so as to fix the molding dripper 7 above the coolant level in the dripping tank 8; at the lower end of each molding dripper 7, a molding tube 9 is arranged, the inlet of the molding tube 9 is directly opposite to the outlet of the molding dripper 7, and the height of the molding tube 9 is lower than the coolant level, so that the coolant can overflow from the molding tube 9; the molding tube 9 passes through the bottom of the dripping tank 8, and a guide tube 14 is arranged to connect to the coolant recovery tank 15; the controllable micro-pellets formed in the molding dripper 7 and the molding tube 9 are immersed in the coolant overflowing from the molding tube 9 for continuous cooling, and mixed with the coolant and flowed to the coolant circulation system through the guide tube 14.

[0009] The coolant circulation system includes a coolant recovery tank 15, a coolant reflux pipe 16, a cooling device 17 and a coolant feed pipe 18; the coolant reflux pipe 16 is arranged at the bottom of the dripping tank 8 to connect the dripping tank 8 with the cooling device 17; the coolant feed pipe 18 is connected to the upper part of the dripping tank 8 to keep the coolant circulating between the dripping tank 8 and the cooling device 17 to maintain a constant temperature; in addition, the coolant recovery tank 15 is arranged on the front of the dripping tank 8, and a movable screen 19 is arranged on the upper end thereof to separate the controllable micro-pellets formed in the forming tube 9 and mixed with the coolant, and the coolant overflowing from the top of the forming tube 9 falls into the coolant recovery tank 15 below the screen 19, and the coolant recovery tank 15 is connected to the cooling device 17, and the recovered coolant enters the cooling device 17 for cooling, and then flows into the dripping tank 8.

[0010] The outer wall molding liquid circulation system includes a molding liquid circulation box 20 arranged below the dripping tank 8, which is connected to the outer wall molding liquid storage box 2 arranged on the top of the equipment body 1 through a liquid inlet pipe 21 and a liquid outlet pipe 22. A heating device and a mixing and stirring device are arranged in the molding liquid circulation box 20. After the molding liquid is heated to the required temperature as a whole, it is sent to the outer wall molding liquid storage box 2 by a liquid pump 24 after passing through a filtering device 23 arranged on the liquid inlet pipe 21, and is transported by a molding liquid pump 4 to participate in the molding of controllable microcapsules. A temperature detection device is provided in the outer wall molding liquid storage box 2. When the temperature of the molding liquid is lower than the set value, it flows back to the molding liquid circulation box 20 through the liquid outlet pipe 22 for circulation heating.

[0011] Preferably, an outer heating and heat-insulating component 10-3 is arranged on the periphery of the upper hollow cylinder 10, that is, a heating ring is directly wrapped around the periphery of the upper hollow cylinder 10, and an electric heating wire is arranged in the heating ring, and the generated heat is directly transferred to the upper hollow cylinder 10; this structure has a higher heating power and is used when the flow rate of the core liquid or the molding liquid is faster.

[0012] Preferably, the outer layer heating and heat-insulating component 10-3 arranged on the periphery of the upper hollow cylinder 10 is a hollow area processed inside the outer circumference of the upper hollow cylinder 10, or an annular hollow component is added to the outer circumferential surface of the upper hollow cylinder 10. The hollow area or the hollow component are both sealed in design, and an inlet and an outlet are arranged thereon to communicate with the interior. The inlet and the outlet are connected to an external high-temperature steam circulation system. After the high-temperature steam is introduced, the heat is transferred to the upper hollow cylinder 10. The heat conduction of this structure is relatively uniform, and it is adopted when the flow rate of the core liquid or the molding liquid is slow.

[0013] The production equipment for preparing liquid controllable micro-pills by the condensation method described in the present application fully considers the solidification molding characteristics of the molding liquid, and sets the outer wall molding liquid circulation system as an upper and lower split structure. The molding liquid circulation box 20 set at the lower end is used for heating and stirring, and the outer wall molding liquid storage box 2 set at the upper end is only used for temporary storage and downward transportation, which effectively prevents the impurities appearing in the molding liquid during the long-term heating process and the bubbles generated in the molding liquid during the stirring process from directly entering the dripper 7 and affecting the molding effect; in the production equipment for preparing liquid controllable micro-pills by the condensation method described in the present application, an adjustable bracket 13 is used to install the dripper 7, and a molding tube 9 for overflow of cooling liquid is correspondingly set in the dripping tank 8, which can more accurately control the contact degree of the molding liquid and the core liquid with the cooling liquid after falling off the dripper 7, and the cooling liquid drives the micro-pills to flow in the molding tube 9, cools the outer wall molding liquid, makes the molding degree and wall thickness of the outer wall of the micro-pills more uniform, and has a higher yield rate.

[0014] The production equipment for preparing liquid controllable micropills by the condensation method described in the utility model, combined with relevant processes, can wrap the core liquid in the molding liquid through the dripper 7 to form a composite; and the composite is cooled by the coolant in the molding tube 9 to solidify the molding liquid on the outside to form micropills; the split outer wall molding liquid circulation system realizes the independent heating, stirring and conveying of the molding liquid, and effectively prevents the impurities appearing in the molding liquid during long-term heating and the bubbles generated in the molding liquid during stirring from directly entering the dripper 7; the utility model is provided with an external cooling liquid circulation system, which can accurately control the temperature and flow rate of the cooling liquid to ensure the balance of the cooling liquid level; the utility model also provides a solid or hollow outer layer heating and heat preservation component 10-3 on the dripper 7, which is selected according to specific needs to ensure that the heat distribution of the dripper 7 is uniform, so that the molding liquid wraps the core liquid more uniformly; in addition, the utility model also adjusts the molding liquid raw material ratio and preparation process of the controllable micropills, so that the outer wall breaking strength of the prepared micropills can be controlled, thereby changing its use conditions and expanding the use range and application scenarios of the micropills. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the controllable micro-pill production equipment described in the utility model.

[0016] Figure 2 It is the appearance structure diagram of the dripper.

[0017] Figure 3 is an axial cross-sectional view of the dripper.

[0018] In the figure: body 1, outer wall molding liquid storage box 2, drainage pipe 3, molding liquid pump 4, core liquid storage box 5, core liquid pump 6, dripper 7, dripping tank 8, molding tube 9, vertical hollow tube 10-1, vertical end 10-2, outer layer heating and heat preservation component 10-3, upper hollow cylinder 10, horizontal hollow tube 11-1, horizontal end 11-2, lower hollow cylinder 11, through hole 12-1, inverted frustum 12, bracket 13, guide tube 14, coolant recovery tank 15, coolant reflux pipe 16, cooling device 17, coolant feed pipe 18, screen 19, molding liquid circulation box 20, liquid inlet pipe 21, liquid outlet pipe 22, filtering device 23, liquid pump 24. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments. Example 1

[0020] refer to Figure 1 , a production device for preparing liquid controllable micropellets by condensation method described in this embodiment, the production device includes a micropellet outer wall forming liquid storage and delivery system, a micropellet core liquid storage and delivery system, a micropellet cooling and forming mechanism, a cooling liquid circulation system and an outer wall forming liquid circulation system;

[0021] The pellet outer wall molding liquid storage and delivery system includes an outer wall molding liquid storage box 2 arranged on the top of the equipment body 1, a vertically arranged drainage tube 3 and a molding liquid pump 4 arranged on the front of the equipment body 1, the molding liquid pump 4 is connected to the drainage tube 3 in a one-to-one correspondence, and the molding liquid pumps 4 are arranged in parallel on the same horizontal plane, and the number is 9; the pellet core liquid storage and delivery system includes a core liquid storage box 5 arranged on the back of the equipment body 1, and an infusion tube penetrating the equipment body 1 and a core liquid pump 6 arranged at the front end of the equipment body 1, the core liquid pump 6 is connected to the infusion tube in a one-to-one correspondence, and the core liquid pump 6 is arranged below the molding liquid pump 4, and is also arranged in parallel on the same horizontal plane, and the number is the same as the number of the molding liquid pumps 4, which is also 9;

[0022] refer to Figure 2 and 3The pellet cooling and molding mechanism includes a double-channel molding dripper 7, a dripping trough 8, and a molding tube 9; the molding dripper 7 includes a five-part structure, which includes a core liquid channel including a vertical hollow tube 10-1 and a vertical end 10-2, an upper hollow cylinder 10 provided with an axial outer layer heating and heat preservation component 10-3, a lower hollow cylinder 11 that is matched and connected to the upper hollow cylinder 10 inside and outside, an inverted truncated cone 12 with a through hole 12-1 arranged at the axis, and a molding liquid channel connected to the side of the lower hollow cylinder 11 and provided with a horizontal hollow tube 11-1 and a horizontal end 11-2; the outer layer heating and heat preservation component 10-3 arranged on the periphery of the upper hollow cylinder 10 adopts a solid structure, that is, a heating ring is directly wrapped around the periphery of the upper hollow cylinder 10, and an electric heating wire is arranged in the heating ring, and the heat generated is directly transferred to the upper hollow cylinder 10; the heating power of this structure is relatively high, and it is used when the flow rate of the core liquid or molding liquid is relatively fast.

[0023] The inner hollow parts of the upper hollow cylinder 10 and the lower hollow cylinder 11 are coaxial and have the same diameter as the through hole 12-1 inside the inverted cone 12, and the diameter of the vertical hollow tube 10-1 connected to the vertical end 10-2 is smaller than the diameter of the through hole 12-1 in the upper hollow cylinder 10, the lower hollow cylinder 11 and the inverted cone 12, and the vertical hollow tube 10-1 is coaxially arranged with the through hole 12-1, and an annular space is left between the outer wall of the vertical hollow tube 10-1 and the inner wall of the through hole 12-1 on the same horizontal plane; the horizontal hollow tube 11-1 connected to the horizontal end 11-2 vertically connects the annular space between the vertical hollow tube 10-1 and the through hole 12-1; the dripping groove 8 is arranged below the forming dripper 7 , its upper edge is flush with the lower end outlet of the molding dripper 7, and the dripping tank 8 is filled with coolant; a plurality of brackets 13 are arranged on the upper edge of the dripping tank 8, and the height of the brackets 13 is adjustable, so that the molding dripper 7 is fixed above the coolant level in the dripping tank 8; at the lower end of each molding dripper 7, a molding tube 9 is arranged, the inlet of the molding tube 9 is directly opposite to the outlet of the molding dripper 7, and the height of the molding tube 9 is lower than the coolant level, and the coolant can overflow from the molding tube 9; the molding tube 9 passes through the bottom of the dripping tank 8, and a guide tube 14 is arranged to connect to the coolant recovery tank 15; the controllable micro-pellets formed in the molding dripper 7 and the molding tube 9 are immersed in the coolant overflowing from the molding tube 9 for continuous cooling, and mixed with the coolant and flowed to the coolant circulation system through the guide tube 14.

[0024] The coolant circulation system includes a coolant recovery tank 15, a coolant reflux pipe 16, a cooling device 17 and a coolant feed pipe 18; the coolant reflux pipe 16 is arranged at the bottom of the dripping tank 8 to connect the dripping tank 8 with the cooling device 17; the coolant feed pipe 18 is connected to the upper part of the dripping tank 8 to keep the coolant circulating between the dripping tank 8 and the cooling device 17 to maintain a constant temperature; in addition, the coolant recovery tank 15 is arranged on the front of the dripping tank 8, and a movable screen 19 is arranged on the upper end thereof to separate the controllable micro-pellets formed in the forming tube 9 and mixed with the coolant, and the coolant overflowing from the top of the forming tube 9 falls into the coolant recovery tank 15 below the screen 19, and the coolant recovery tank 15 is connected to the cooling device 17, and the recovered coolant enters the cooling device 17 for cooling, and then flows into the dripping tank 8.

[0025] The outer wall molding liquid circulation system includes a molding liquid circulation box 20 arranged below the dripping tank 8, which is connected to the outer wall molding liquid storage box 2 arranged on the top of the equipment body 1 through a liquid inlet pipe 21 and a liquid outlet pipe 22. A heating device and a mixing and stirring device are arranged in the molding liquid circulation box 20. After the molding liquid is heated to the required temperature as a whole, it is sent to the outer wall molding liquid storage box 2 by a liquid pump 24 after passing through a filtering device 23 arranged on the liquid inlet pipe 21, and is transported by a molding liquid pump 4 to participate in the molding of controllable microcapsules. A temperature detection device is provided in the outer wall molding liquid storage box 2. When the temperature of the molding liquid is lower than the set value, it flows back to the molding liquid circulation box 20 through the liquid outlet pipe 22 for circulation heating. Example 2

[0026] The difference between this embodiment and embodiment 1 is that:

[0027] The outer layer heating and heat preservation component 10-3 arranged on the periphery of the upper hollow cylinder 10 adopts a hollow structure, that is, a hollow area is processed inside the outer circumference of the upper hollow cylinder 10, or an annular hollow component is added to the outer circumferential surface of the upper hollow cylinder 10, the hollow area or the hollow component are both sealed in design, and an inlet and an outlet are arranged thereon to communicate with the interior, the inlet and the outlet are connected to an external high-temperature steam circulation system, and after the high-temperature steam is introduced, the heat is transferred to the upper hollow cylinder 10; the heat conduction of this structure is relatively uniform, and it is used when the flow rate of the core liquid or the molding liquid is slow.

Claims

1. A production equipment for preparing liquid controllable micro-pellets by condensation method, characterized in that: The production equipment includes a micro-pellet outer wall forming liquid storage and delivery system, a micro-pellet core liquid storage and delivery system, a micro-pellet cooling and forming mechanism, a cooling liquid circulation system and an outer wall forming liquid circulation system; The pellet outer wall molding liquid storage and delivery system comprises an outer wall molding liquid storage box (2) arranged on the top of the equipment body (1), a vertically arranged drainage pipe (3) and a molding liquid pump (4) arranged on the front of the equipment body (1), the molding liquid pump (4) and the drainage pipe (3) are connected to each other in a one-to-one correspondence, and the molding liquid pumps (4) are arranged in parallel on the same horizontal plane, and the number of the molding liquid pumps (4) can be increased or decreased according to production needs; The micropill core liquid storage and delivery system comprises a core liquid storage box (5) arranged at the back of the equipment body (1), a liquid infusion tube penetrating the equipment body (1), and a core liquid pump (6) arranged at the front end of the equipment body (1), the core liquid pump (6) and the liquid infusion tube are connected one by one, the core liquid pump (6) is arranged below the molding liquid pump (4), and is also arranged in parallel on the same horizontal plane, and the number of the core liquid pumps (6) can be increased or decreased according to production needs; The pellet cooling molding mechanism comprises a double-channel molding dripper (7), a dripping trough (8), and a molding tube (9); the molding dripper (7) comprises five structural parts, which are, from top to bottom, a core liquid channel comprising a vertical hollow tube (10-1) and a vertical end cap (10-2), an upper hollow cylinder (10) provided with an axial outer layer heating and heat preservation component (10-3), a lower hollow cylinder (11) matched and connected to the upper hollow cylinder (10) both inside and outside, an inverted truncated cone (12) with a through hole (12-1) arranged at the axis, and a molding liquid channel connected to the side of the lower hollow cylinder (11) and provided with a horizontal hollow tube (11-1) and a horizontal end cap (11-2); The inner hollow parts of the upper hollow cylinder (10) and the lower hollow cylinder (11) are coaxial and have the same diameter as the through hole (12-1) inside the inverted truncated cone (12), and the diameter of the vertical hollow tube (10-1) connected to the vertical end (10-2) is smaller than the diameter of the through hole (12-1) in the upper hollow cylinder (10), the lower hollow cylinder (11) and the inverted truncated cone (12), and the vertical hollow tube (10-1) and the through hole (12-1) are coaxially arranged, and an annular space is left between the outer wall of the vertical hollow tube (10-1) and the inner wall of the through hole (12-1) on the same horizontal plane; the horizontal hollow tube (11-2) connected to the horizontal end (11-2) is 1) a circular annular space between the vertical hollow tube (10-1) and the through hole (12-1) is vertically connected; the dripping groove (8) is arranged below the molding dripper (7), and its upper edge is flush with the lower end outlet of the molding dripper (7), and the dripping groove (8) is filled with coolant; a plurality of brackets (13) are arranged on the upper edge of the dripping groove (8), and the height of the brackets (13) is adjustable; a molding tube (9) is arranged at the lower end of each molding dripper (7), the inlet of the molding tube (9) is directly opposite to the outlet of the molding dripper (7), and the height of the molding tube (9) is lower than the liquid level of the coolant; the molding tube (9) passes through the bottom of the dripping groove (8), and a guide tube (14) is arranged to be connected to the coolant recovery tank (15); The coolant circulation system comprises a coolant recovery tank (15), a coolant return pipe (16), a cooling device (17) and a coolant feed pipe (18); the coolant return pipe (16) is arranged at the bottom of the dripping tank (8) to connect the dripping tank (8) with the cooling device (17); the coolant feed pipe (18) is connected to the upper part of the dripping tank (8) to keep the coolant circulating between the dripping tank (8) and the cooling device (17); in addition, the coolant recovery tank (15) is arranged on the front side of the dripping tank (8), and a movable screen (19) is arranged at the upper end thereof to separate the controllable micro-pellets formed in the forming tube (9) and mixed with the coolant; the coolant recovery tank (15) is connected to the cooling device (17), and the recovered coolant enters the cooling device (17) for cooling and then flows into the dripping tank (8); The outer wall molding liquid circulation system comprises a molding liquid circulation box (20) arranged below the dripping tank (8), which is connected to an outer wall molding liquid storage box (2) arranged on the top of the equipment body (1) via a liquid inlet pipe (21) and a liquid outlet pipe (22); a heating device and a mixing and stirring device are arranged in the molding liquid circulation box (20); a filtering device (23) and a liquid pump (24) are arranged on the liquid inlet pipe (21) and connected to the outer wall molding liquid storage box (2); and a temperature detection device is arranged in the outer wall molding liquid storage box (2).

2. The production equipment for preparing liquid controllable micro-pellets by condensation method according to claim 1, characterized in that: An outer layer heating and heat-insulating component (10-3) is arranged on the periphery of the upper hollow cylinder (10), that is, a heating ring is directly wrapped around the periphery of the upper hollow cylinder (10), and an electric heating wire is arranged inside the heating ring.

3. The production equipment for preparing liquid controllable micro-pellets by condensation method according to claim 1, characterized in that: The outer layer heating and heat-insulating component (10-3) arranged on the periphery of the upper hollow cylinder (10) is a hollow area processed inside the outer circumference of the upper hollow cylinder (10), or a ring-shaped hollow component is added to the outer circumferential surface of the upper hollow cylinder (10), and the hollow area or hollow component is of sealed design, and an inlet and an outlet are arranged thereon to communicate with the interior, and the inlet and the outlet are connected to an external high-temperature steam circulation system.

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