Coffee production system with spray drying function

Abstract

The invention provides a coffee production system with a spray drying function, and relates to the technical field of coffee production. The coffee production system with spray drying function comprises: a housing; the outer cylinder is connected into the shell; the inner cylinder is connected into the outer cylinder, and a plurality of sieve holes are formed in the circumferential surface of the lower part of the inner cylinder; the atomizing disc is arranged in the inner cylinder and communicates with the hot air pipe and the liquid inlet pipe, and the atomizing disc can rotate under the action of aerodynamic force of the hot air pipe; and the grinding mechanism is arranged in the inner cylinder, and the grinding mechanism is used for grinding the atomized and dried powder particles. The atomizing disc is driven to rotate through high-speed airflow of the hot air pipe, motor-free atomization is achieved, energy consumption is reduced, lubricating oil pollution is avoided, atomized and dried coffee particles enter the inner cylinder, and under the grinding action of the grinding mechanism, the coffee particles with the particle size meeting the requirement fall into the outer cylinder through the sieve holes and then are taken out of the outer cylinder, and therefore the coffee particles can be atomized and dried. The granularity consistency of the finished coffee powder is ensured, so that the solubility of the finished coffee powder is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of coffee production, and in particular to a coffee production system with a spray drying function. Background Art

[0002] Instant coffee, a key product in the modern food industry, relies on physical processing to convert coffee extract into a quickly dissolving dry powder. Spray drying technology plays a key role in this process: The coffee liquid is pumped by a high-pressure pump to an atomizer (such as a centrifugal atomizer or pressure nozzle), where it is dispersed into micron-sized droplets. These droplets then come into contact with high-temperature air, instantly evaporating the water and forming porous coffee particles.

[0003] In existing technologies, most coffee spray drying devices only have a drying function, separate from the grinding function. This results in low system integration, which affects production efficiency and product solubility. Therefore, there is an urgent need for an integrated device that integrates atomization, drying, and grinding. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides a coffee production system with a spray drying function.

[0005] The present invention provides a coffee production system with a spray drying function, comprising:

[0006] case;

[0007] An outer cylinder is connected to the shell, and a blanking portion is provided on the lower circumference of the outer cylinder;

[0008] An inner cylinder is connected to the outer cylinder, and a plurality of sieve holes are provided on the lower circumference of the inner cylinder;

[0009] a hot air pipe extending into the inner cylinder;

[0010] a liquid inlet pipe extending into the inner cylinder;

[0011] an atomizing disk disposed in the inner cylinder and connected to the hot air pipe and the liquid inlet pipe, wherein the atomizing disk is capable of rotating under the action of the aerodynamic force of the hot air pipe;

[0012] The rolling mechanism is arranged in the inner cylinder and is used to grind the powder particles after atomization and drying so that the powder particles with the required particle size can pass through the sieve holes and enter the outer cylinder.

[0013] Optionally, the rolling mechanism includes a rotating shaft, a rolling roller and a support plate, the rotating shaft is rotatably arranged on the central axis of the inner cylinder, one end of each of the support plates is connected to the rotating shaft, and the other end of the support plate extends radially to the inner circumference of the inner cylinder, and the rolling roller is slidably arranged on the inner circumference of the inner cylinder.

[0014] Optionally, the rolling mechanism also includes a vibration unit and a trigger unit, the trigger unit is drive-connected to the vibration unit, the vibration unit is arranged at one end of the support plate away from the rotating shaft, and the trigger unit is arranged inside the rotating shaft and the support plate. When the rolling roller rolls from the support plate to the rotating shaft, the trigger unit is used to drive the vibration unit to hit the inner circumference of the inner cylinder.

[0015] Optionally, the trigger unit includes a rubber, a movable rod and a spring, a groove is provided on the outer peripheral surface of the rotating shaft, the rubber is connected to the groove, one end of the movable rod is connected to the rubber, and the other end of the movable rod is driven and connected to the vibration unit, the spring is sleeved on the movable rod, and the two ends of the spring respectively abut against the rubber and the bottom surface of the groove.

[0016] Optionally, the vibration unit includes an impact block and hard bristles, the impact block is connected to the end of the movable rod away from the rubber, and multiple hard bristles are connected to a side of the impact block away from the movable rod. When the spring is in a natural state, the length of the hard bristles is greater than the shortest distance from the impact block to the inner circumference of the inner tube.

[0017] Optionally, the impact surface of the impact block is configured to be an arc surface that matches the inner circumference of the inner cylinder.

[0018] Optionally, the atomizing disk includes a disk cover, a disk body and a spiral groove, the disk cover is provided with an opening, the disk cover is connected to the disk body, and the inner bottom surface of the disk body is provided with a plurality of spiral grooves arranged along the circumferential direction.

[0019] Optionally, the inner bottom surface of the disk body is further provided with a center ring, and a plurality of liquid outlet holes are provided on the circumference of the center ring.

[0020] Optionally, a rotary joint is provided in the inner cylinder, the fixed port of the rotary joint is connected to the corresponding end of the hot air pipe, the rotating port of the rotary joint is rotatably connected to the opening of the disc cover, and the liquid inlet pipe passes through the rotary joint and extends into the center ring.

[0021] Optionally, the driving mechanism is drivingly connected to the rotating shaft to drive the rotating shaft to rotate.

[0022] The beneficial effects of the coffee production system with spray drying function of the present invention are: the high-speed airflow of the hot air pipe drives the atomizing disk to rotate, thereby realizing non-motorized atomization, reducing energy consumption and avoiding lubricating oil pollution, and the atomized and dried coffee powder enters the inner cylinder. Under the grinding action of the grinding mechanism, the coffee powder with the required particle size falls into the outer cylinder through the sieve holes and is then taken out from the outer cylinder, ensuring the consistency of the particle size of the finished coffee powder. The system integrates the atomization, drying and crushing functions, and significantly improves the solubility of the finished coffee. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of a coffee production system with a spray drying function according to an embodiment of the present invention;

[0024] Figure 2 This is a front view of a coffee production system with a spray drying function according to an embodiment of the present invention;

[0025] Figure 3 This is a first state diagram of the grinding mechanism in the coffee production system with spray drying function according to an embodiment of the present invention;

[0026] Figure 4 This is a second state diagram of the crushing mechanism in the coffee production system with spray drying function according to an embodiment of the present invention;

[0027] Figure 5 This is a diagram showing the third state of the crushing mechanism in the coffee production system with spray drying function according to an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the structure of an atomizing disk in a coffee production system with a spray drying function according to an embodiment of the present invention.

[0029] Explanation of the accompanying symbols: 1. Shell; 2. Outer cylinder; 21. Discharge part; 3. Hot air pipe; 4. Liquid inlet pipe; 5. Driving mechanism; 6. Atomizing disk; 61. Disk cover; 62. Disk body; 621. Spiral groove; 622. Center ring; 6221. Liquid outlet; 7. Rotary joint; 8. Inner cylinder; 81. Sieve hole; 9. Rolling mechanism; 91. Rotating shaft; 911. Groove; 92. Rolling roller; 93. Support plate; 94. Vibrating unit; 941. Impact block; 942. Hard bristles; 95. Trigger unit; 951. Rubber; 952. Movable rod. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0031] In the description of the present invention, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0032] Throughout this specification, reference to terms such as "an embodiment," "one embodiment," "some embodiments," "exemplarily," and "one embodiment" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or embodiment are included in at least one embodiment or embodiment of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or embodiment. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or embodiments.

[0033] The terms "first," "second," etc. are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly specify the quantity of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one of the features.

[0034] An embodiment of the present invention provides a coffee production system with a spray drying function, comprising: a shell 1; an outer cylinder 2, connected to the shell 1, and a discharge portion 21 is provided on the lower circumference of the outer cylinder 2; an inner cylinder 8, connected to the outer cylinder 2, and a plurality of sieve holes 81 are provided on the lower circumference of the inner cylinder 8; a hot air pipe 3, extending into the inner cylinder 8; a liquid inlet pipe 4, extending into the inner cylinder 8; an atomizing disk 6, arranged in the inner cylinder 8 and connected to the hot air pipe 3 and the liquid inlet pipe 4, the atomizing disk 6 can rotate under the action of the aerodynamic force of the hot air pipe 3; a crushing mechanism 9, arranged in the inner cylinder 8, and the crushing mechanism 9 is used to grind the powder particles after atomization and drying, so that the powder particles with the required particle size can pass through the sieve holes 81 and enter the outer cylinder 2.

[0035] Specifically, combined Figure 1 and Figure 2 As shown, a hot air blower can be installed at the bottom of the shell 1, and the air outlet of the hot air blower is connected to the hot air pipe 3. The outer cylinder 2 can be installed in the shell 1 through the mounting bracket, and the inner cylinder 8 can also be installed in the outer cylinder 2 through the mounting bracket. The discharge part 21 is arranged inclined as a whole, and a discharge pipe is provided at the bottom side of the discharge part 21, and a receiving cylinder can be arranged directly below the discharge pipe.

[0036] In this optional embodiment, the atomizing disk 6 is driven to rotate by the high-speed airflow through the hot air pipe 3, thereby realizing non-motorized atomization, reducing energy consumption and avoiding lubricating oil pollution. The atomized and dried coffee powder particles enter the inner cylinder 8. Under the grinding action of the grinding mechanism 9, the coffee powder particles with the required particle size fall into the outer cylinder 2 through the sieve hole 81 and are then taken out from the outer cylinder 2, ensuring the consistency of the particle size of the finished coffee powder, thereby improving the solubility of the finished coffee.

[0037] Furthermore, the rolling mechanism 9 includes a rotating shaft 91, a rolling roller 92 and a support plate 93. The rotating shaft 91 is rotatably arranged on the central axis of the inner cylinder 8. One end of a plurality of support plates 93 is connected to the rotating shaft 91, and the other end of the support plate 93 extends radially to the inner circumference of the inner cylinder 8. The rolling roller 92 is slidably arranged on the inner circumference of the inner cylinder 8.

[0038] In this embodiment, combined with Figure 3 、 Figure 4 and Figure 5 As shown, the rolling roller 92 can be solid to increase the dead weight of the rolling roller 92, so that the rolling roller 92 has a better grinding effect on the coffee powder particles. There are three rolling rollers 92 and three support plates 93. The support plates 93 can move the rolling roller 92 to slide on the lower half of the inner circumference of the inner cylinder 8, so as to grind the coffee powder particles. At the same time, the rotation of the support plates 93 can disturb the hot air in the inner cylinder 8, so as to further improve the contact effect between the coffee powder particles and the hot air, integrate the atomization, drying and crushing functions, and significantly improve the solubility of the finished coffee.

[0039] Optionally, the rolling mechanism 9 also includes a vibration unit 94 and a trigger unit 95. The trigger unit 95 is driven and connected to the vibration unit 94. The vibration unit 94 is arranged at one end of the support plate 93 away from the rotating shaft 91. The trigger unit 95 is arranged inside the rotating shaft 91 and the support plate 93. When the rolling roller 92 rolls from the support plate 93 to the rotating shaft 91, the trigger unit 95 is used to drive the vibration unit 94 to hit the inner circumference of the inner cylinder 8.

[0040] In this optional embodiment, while the grinding roller 92 is grinding the coffee powder particles, it triggers the vibration unit 94 through the trigger unit 95, so that the vibration unit 94 can periodically hit the inner circumference of the inner cylinder 8, thereby causing the inner cylinder 8 to vibrate. On the one hand, the coffee powder particles adhering to the inner circumference of the upper half of the inner cylinder 8 can be shaken off to the lower half of the inner circumference of the inner cylinder 8, so that this part of the coffee powder particles can participate in the grinding, thereby reducing the waste of coffee powder particles. On the other hand, the vibration of the sieve hole 81 can shake off the coffee powder particles blocked in the sieve hole 81 as much as possible, thereby preventing the coffee powder particles from being blocked in the sieve hole 81 and affecting the grinding process.

[0041] Optionally, the trigger unit 95 includes a rubber 951, a movable rod 952 and a spring. A groove 911 is provided on the outer peripheral surface of the rotating shaft 91. The rubber 951 is connected to the groove 911. One end of the movable rod 952 is connected to the rubber 951. The other end of the movable rod 952 is driven and connected to the vibration unit 94. The spring is sleeved on the movable rod 952, and the two ends of the spring respectively abut against the rubber 951 and the bottom surface of the groove 911.

[0042] Optionally, the vibration unit 94 includes an impact block 941 and hard bristles 942. The impact block 941 is connected to the end of the movable rod 952 away from the rubber 951. Multiple hard bristles 942 are connected to the side of the impact block 941 away from the movable rod 952. When the spring is in a natural state, the length of the hard bristles 942 is greater than the shortest distance from the impact block 941 to the inner circumference of the inner tube 8.

[0043] In this optional embodiment, the hard bristles 942 can be nylon bristles. When the hard bristles 942 rotate with the support plate 93, the hard bristles 942 can be inserted into and pulled out of the sieve holes 81 by virtue of their own elasticity, thereby tamping the coffee powder particles blocked in the sieve holes 81 and removing the coffee powder particles from the sieve holes 81. Figures 3 to 4 During the process, as the rotating shaft 91 rotates counterclockwise, the upper right rolling roller 92 gradually rolls along the corresponding support plate 93 toward the rotating shaft 91 until the rolling roller 92 hits the corresponding rubber 951, forcing the rubber 951 to be concave toward the inner bottom surface of the groove 911, thereby moving the movable rod 952 toward the inner circumference of the inner cylinder 8, and compressing the spring. The movable rod 952 pushes the impact block 941 to hit the inner wall of the inner cylinder 8, thereby shaking off the coffee powder particles blocked in the sieve hole 81, and at the same time shaking the hard bristles 942, thereby shaking off the coffee powder particles adhering to the hard bristles 942, so as to improve the continuous tamping effect of the hard bristles 942 on the sieve hole 81, thereby Figures 4 to 5 During the process, after the upper right rolling roller 92 rolls over the rotating shaft 91, the spring returns to its original shape, causing the rubber 951 to bulge out from the groove 911 again, thereby driving the impact block 941 to return to its original position, and the rolling roller 92 continues to roll down along the corresponding support plate 93 until it hits the inner wall of the inner cylinder 8, thereby causing the inner cylinder 8 to vibrate again to prevent the sieve holes 81 from being blocked. In this way, the discharge of the material from each sieve hole 81 can be guaranteed, thereby improving the production efficiency of coffee powder particles.

[0044] Furthermore, the impact surface of the impact block 941 is configured to be an arc surface that matches the inner circumference of the inner cylinder 8 .

[0045] In this optional embodiment, combined with Figure 3 and Figure 4As shown, the impact surface of the impact block 941 refers to the surface of the impact block 941 when it impacts the inner circumference of the inner cylinder 8. By integrally forming the impact surface into an arc surface shape that is compatible with the inner circumference of the inner cylinder 8, the impact block 941 can impact the inner circumference of the inner cylinder 8, thereby causing the inner cylinder 8 to vibrate.

[0046] Optionally, the atomizing disk 6 includes a disk cover 61, a disk body 62 and a spiral groove 621. The disk cover 61 is provided with an opening, and the disk cover 61 is connected to the disk body 62. The inner bottom surface of the disk body 62 is provided with a plurality of spiral grooves 621 arranged in a circumferential direction. The inner bottom surface of the disk body 62 is also provided with a center ring 622. The circumferential surface of the center ring 622 is provided with a plurality of liquid outlet holes 6221. A rotary joint 7 is provided in the inner cylinder 8. The fixed port of the rotary joint 7 is connected to the corresponding end of the hot air pipe 3. The rotating port of the rotary joint 7 is rotatably connected to the opening of the disk cover 61. The liquid inlet pipe 4 passes through the rotary joint 7 and extends into the center ring 622.

[0047] In this optional embodiment, combined with Figure 2 and Figure 6 As shown, the liquid inlet pipe 4 is thinner, so that the liquid inlet pipe 4 does not contact the inner wall of the rotary joint 7, and the end of the liquid inlet pipe 4 extends into the center ring 622. That is to say, the end of the liquid inlet pipe 4 does not contact the inner wall of the center ring 622. The hot air enters the atomizing disk 6 from the opening of the disk cover 61 through the hot air pipe 3, and then blows out from the circumference of the atomizing disk 6 through multiple spiral grooves 621. When the hot air is ejected from the outlet of the spiral groove 621, it can generate a tangential force (i.e., aerodynamic torque), thereby pushing the atomizing disk 6 to rotate on the rotating port of the rotary joint 7. At the same time, When the coffee extract enters the center ring 622 through the liquid inlet pipe 4, the centrifugal force generated by the rotation of the atomizing disk 6 causes the coffee extract to be dispersed into the disk body 62 through the liquid outlet 6221, and then enter the spiral groove 621. The centrifugal force atomizes the coffee extract droplets into mist droplets. During this process, the coffee extract droplets and the mist droplets can fully contact with the hot air, so that the mist droplets are dried into coffee powder. After the coffee powder and the hot air are ejected from the spiral groove 621, they enter the inner cylinder 8, and the coffee powder can be further dried, thereby maximizing the drying effect.

[0048] Optionally, the driving mechanism 5 is drivingly connected to the rotating shaft 91 to drive the rotating shaft 91 to rotate.

[0049] In this optional embodiment, combined with Figure 1 and Figure 2As shown, the driving mechanism 5 may include a motor, a driving pulley, a belt and a driven pulley. The motor may be mounted on the housing 1 by bolts. The output shaft of the motor is connected to the driving pulley, which is connected to the driven pulley via a belt. The driven pulley is mounted on the end of the rotating shaft 91 extending out of the inner cylinder 8. The driving pulley is driven to rotate by the motor, and the driving pulley is driven to rotate by the belt, thereby driving the rotating shaft 91 to rotate, and then driving the support plate 93 to rotate, thereby realizing the sliding of the rolling roller 92.

[0050] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A coffee production system with spray drying function, characterized in that: include: Housing (1); The outer cylinder (2) is connected to the shell (1), and a blanking portion (21) is provided on the lower circumference of the outer cylinder (2); An inner cylinder (8) is connected to the outer cylinder (2), and a plurality of sieve holes (81) are provided on the lower circumference of the inner cylinder (8); The hot air pipe (3) extends into the inner cylinder (8); a liquid inlet pipe (4) extending into the inner cylinder (8); An atomizing disk (6) is disposed in the inner cylinder (8) and is in communication with the hot air pipe (3) and the liquid inlet pipe (4). The atomizing disk (6) is capable of rotating under the action of the aerodynamic force of the hot air pipe (3); The grinding mechanism (9) is arranged in the inner cylinder (8) and is used to grind the powder particles after atomization and drying so that the powder particles with the required particle size pass through the sieve holes (81) and enter the outer cylinder (2).

2. The coffee production system with spray drying function according to claim 1, characterized in that: The rolling mechanism (9) includes a rotating shaft (91), a rolling roller (92) and a support plate (93). The rotating shaft (91) is rotatably arranged on the central axis of the inner cylinder (8). One end of a plurality of support plates (93) is connected to the rotating shaft (91), and the other end of the support plate (93) extends radially to the inner circumference of the inner cylinder (8). The rolling roller (92) is slidably arranged on the inner circumference of the inner cylinder (8).

3. The coffee production system with spray drying function according to claim 2, characterized in that: The rolling mechanism (9) further comprises a vibration unit (94) and a trigger unit (95). The trigger unit (95) is drive-connected to the vibration unit (94). The vibration unit (94) is arranged at one end of the support plate (93) away from the rotating shaft (91). The trigger unit (95) is arranged inside the rotating shaft (91) and the support plate (93). When the rolling roller (92) rolls from the support plate (93) to the rotating shaft (91), the trigger unit (95) is used to drive the vibration unit (94) to hit the inner circumference of the inner cylinder (8).

4. The coffee production system with spray drying function according to claim 3, characterized in that: The trigger unit (95) comprises a rubber (951), a movable rod (952) and a spring. A groove (911) is provided on the outer peripheral surface of the rotating shaft (91). The rubber (951) is connected to the groove (911). One end of the movable rod (952) is connected to the rubber (951). The other end of the movable rod (952) is drivingly connected to the vibration unit (94). The spring is sleeved on the movable rod (952), and the two ends of the spring respectively abut against the rubber (951) and the bottom surface of the groove (911).

5. The coffee production system with spray drying function according to claim 4, characterized in that: The vibration unit (94) includes a collision block (941) and hard bristles (942). The collision block (941) is connected to an end of a movable rod (952) away from the rubber (951). A plurality of hard bristles (942) are connected to a side of the collision block (941) away from the movable rod (952). When the spring is in a natural state, the length of the hard bristles (942) is greater than the shortest distance from the collision block (941) to the inner circumference of the inner cylinder (8).

6. The coffee production system with spray drying function according to claim 5, characterized in that: The impact surface of the impact block (941) is configured to be an arcuate surface that matches the inner circumference of the inner cylinder (8).

7. The coffee production system with spray drying function according to claim 1, characterized in that: The atomizing disk (6) comprises a disk cover (61), a disk body (62) and a spiral groove (621). The disk cover (61) is provided with an opening, the disk cover (61) is connected to the disk body (62), and the inner bottom surface of the disk body (62) is provided with a plurality of spiral grooves (621) arranged along the circumferential direction.

8. The coffee production system with spray drying function according to claim 7, characterized in that: The inner bottom surface of the disc body (62) is further provided with a center ring (622), and a plurality of liquid outlet holes (6221) are provided on the peripheral surface of the center ring (622).

9. The coffee production system with spray drying function according to claim 8, characterized in that: A rotary joint (7) is provided in the inner cylinder (8); a fixed port of the rotary joint (7) is communicated with a corresponding end of the hot air pipe (3); a rotating port of the rotary joint (7) is rotatably connected to an opening of the disc cover (61); and a liquid inlet pipe (4) passes through the rotary joint (7) and extends into the center ring (622).

10. The coffee production system with spray drying function according to claim 2, characterized in that: The driving mechanism (5) is drivingly connected to the rotating shaft (91) to drive the rotating shaft (91) to rotate.

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