Konjac low-temperature ultrafine grinding and grading integrated device and method

Abstract

The application belongs to the technical field of food crushing, and particularly relates to a low-temperature ultrafine crushing and grading integrated device and method for konjac, aiming at the problem that a low-temperature crusher cannot realize continuous and cyclic processing of konjac ultrafine powder, and the following scheme is proposed, which comprises a bottom plate, a low-temperature crushing box, a wind screen crushing box and a discharging cylinder, the low-temperature crushing box, the wind screen crushing box and the discharging cylinder are all located above the bottom plate, and the wind screen crushing box and the discharging cylinder are respectively located on the two sides of the low-temperature crushing box. The low-temperature ultrafine crushing and grading integrated device and method for konjac disclosed by the application adopts a grading crushing integrated form, konjac crushed particles are preliminarily crushed into powder, and then are low-temperature ultrafine crushed into ultrafine powder products, the whole process utilizes airflow to realize feeding, discharging and screening, the process is continuous and can be cyclically and continuously carried out, the disadvantage of needing to stop feeding is effectively solved, and the overall processing efficiency of konjac ultrafine powder is improved.

Description

Technical Field

[0001] This invention relates to the field of food pulverization technology, and in particular to an integrated device and method for low-temperature ultrafine pulverization and grading of konjac. Background Technology

[0002] Konjac is a plant belonging to the Araceae family and the Amorphophallus genus. Its tuber is flattened and spherical. The tuber can be processed into konjac flour for consumption and can also be made into various food products such as konjac tofu, konjac noodles, and konjac bread. A crusher is a machine that crushes large solid raw materials to the required size. As a special type of equipment, a cryogenic crusher can crush materials under low-temperature conditions.

[0003] Currently, cryogenic pulverizers have significant limitations in processing konjac ultrafine powder particles. The raw material particles need to be initially crushed by a crusher before they can be further processed in the cryogenic pulverizer. This makes it impossible to achieve a continuous and cyclical processing process, resulting in low overall efficiency and severely reducing the processing speed of konjac ultrafine powder. Summary of the Invention

[0004] This invention discloses an integrated device and method for low-temperature ultrafine grinding and grading of konjac, aiming to solve the technical problem in the background art that current low-temperature grinders cannot achieve continuous and cyclic processing of konjac ultrafine powder.

[0005] This invention proposes an integrated device for low-temperature ultrafine grinding and grading of konjac, comprising a base plate, a low-temperature grinding chamber, an air-screen crushing chamber, and a feeding cylinder. The low-temperature grinding chamber, air-screen crushing chamber, and feeding cylinder are all located above the base plate, with the air-screen crushing chamber and feeding cylinder located on opposite sides of the low-temperature grinding chamber. A cold-cavity conveying pipe is provided between the low-temperature grinding chamber and the air-screen crushing chamber, and a screening and transfer pipe is provided between the low-temperature grinding chamber and the feeding cylinder. The device also includes:

[0006] The primary crushing module, set on the air-screen crushing box, includes a vertical plate, a cover plate, and an air supply pipe, and is used for the initial crushing and feeding of konjac particles.

[0007] The low-temperature pulverizing module, installed on the low-temperature pulverizing chamber, includes a pulverizing chamber, a rotating disc, and multiple pulverizing racks, and is used for the ultra-fine pulverization of konjac powder;

[0008] The continuous feeding module, located on the feeding cylinder, includes a feeding bin, a shaft, and spiral feeding blades, and is used for feeding konjac ultrafine powder and circulating cold air.

[0009] In a preferred embodiment, the primary screening and crushing module further includes a frame, which is fixedly connected to the upper side of the base plate. A crushing motor is fixedly connected to the frame, and the output end of the crushing motor is connected to a short shaft via a coupling. The vertical plate is movably connected inside the primary screening and crushing box. The other end of the short shaft passes through the primary screening and crushing box and is fixedly connected to the vertical plate. The primary screening and crushing box is movably connected to the cover plate. Crushing rods are provided on opposite sides of the vertical plate and the cover plate.

[0010] In a preferred embodiment, the primary screening and crushing box is provided with a feeding bin and an air inlet. The air inlet is equipped with an air screen. A blower seat is fixedly connected to the air inlet of the primary screening and crushing box. The blower seat is connected to the interior of the primary screening and crushing box. The feeding pipe is located above the blower seat. The upper and lower ends of the feeding pipe are connected to the cold cavity conveying pipe and the primary screening and crushing box, respectively. An air conveying pipe is fixedly connected to the blower seat. An air conveying interface is fixedly connected to the other end of the air conveying pipe. An air conveying regulating valve is provided on the air conveying pipe.

[0011] In a preferred embodiment, the low-temperature pulverizing box is provided with a feed inlet and a discharge outlet. The discharge outlet is located below the screening and transfer pipe, and the feed inlet is fixedly connected to the cold chamber conveying pipe. The other end of the cold chamber conveying pipe is fixedly connected to a cold air interface.

[0012] In a preferred embodiment, a support is fixedly connected to the lower side of the cryogenic pulverizing chamber, and the support is fixedly connected to the upper side of the base plate.

[0013] In a preferred embodiment, the cryogenic pulverizing module further includes multiple movable mounting ports, which are equidistantly distributed circumferentially on the outer side of the rotating disc. The rotating disc is movably connected inside the cryogenic pulverizing chamber. A pulverizing motor is installed below the cryogenic pulverizing chamber and is fixedly connected to the support platform. The output end of the pulverizing motor is connected to the rotating disc via a coupling. Multiple pulverizing frames are movably connected inside the multiple movable mounting ports, and each of the multiple pulverizing frames is equipped with multiple pulverizing rods, each of which is equipped with protrusions.

[0014] In a preferred embodiment, a support frame is fixedly connected to the outer side of the feeding cylinder, the support frame is fixedly connected to the upper side of the base plate, a discharge motor is provided at the top of the support frame, and a discharge stage control component is provided between the screening and transfer pipe and the low-temperature pulverizing box.

[0015] In a preferred embodiment, the continuous feeding module further includes a top bin, which is located at the upper end of the feeding cylinder, and the feeding bin is located at the lower end of the feeding cylinder. A shaft is located inside the top bin and the feeding cylinder. The output end of the discharge motor is connected to the top end of the shaft via a coupling. The bolt feeding blade is located outside the shaft. A return pipe is fixedly connected to the top bin, and an external pipe interface is fixedly connected to the lower end of the return pipe.

[0016] In a preferred embodiment, the discharge stage control component includes a control box, which is fixedly connected to the discharge port of the low-temperature pulverizing chamber. The control box is also connected to the screening and transfer pipe. A tapered filter screen is installed inside the control box, located between the outer wall of the screening and transfer pipe and the inner wall of the control box. An air guide pipe is fixedly connected to the control box, and the other end of the air guide pipe is connected to the return pipe. An air guide regulating valve is installed on the air guide pipe.

[0017] A method for integrating low-temperature ultrafine grinding and grading of konjac, using the aforementioned integrated low-temperature ultrafine grinding and grading device for konjac, includes the following steps:

[0018] Step 1: The konjac granules after low-temperature treatment are added to the air screen crushing box and initially crushed by the primary screen crushing module. The crushed powder that meets the crushing specifications is conveyed into the cold chamber conveying pipe, where it is cooled and sent into the low-temperature pulverizing box.

[0019] Step 2: The powder is ultra-finely pulverized by the low-temperature pulverizing module in the low-temperature pulverizing chamber. The ultra-fine powder that meets the pulverization specifications is transferred to the feeding cylinder by the screening and transfer pipe. During this process, part of the cold air is circulated back.

[0020] Step 3: The ultrafine powder is fed into the feeding cylinder by the auxiliary feeding module, and the cold air enters the return pipe for recirculation.

[0021] As can be seen from the above, the konjac low-temperature ultrafine grinding and grading integrated device provided by the present invention adopts an integrated grading and grinding form. The konjac particles are initially crushed into powder, and then ultrafinely ground at low temperature into ultrafine powder products. The entire process uses airflow to realize feeding, discharging and screening. The process is continuous and can be cyclically carried out, which effectively solves the drawback of needing to stop the machine to add material and improves the overall processing efficiency of konjac ultrafine powder. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an integrated device for low-temperature ultrafine grinding and grading of konjac proposed in this invention.

[0023] Figure 2 This is a schematic diagram of the main structure of an integrated device for low-temperature ultrafine grinding and grading of konjac proposed in this invention;

[0024] Figure 3 This is a schematic diagram of the primary screening and crushing module structure of an integrated device for low-temperature ultrafine grinding and grading of konjac proposed in this invention.

[0025] Figure 4 This is a schematic diagram of the air-screen crushing box structure of an integrated device for low-temperature ultrafine grinding and grading of konjac proposed in this invention.

[0026] Figure 5This is a schematic diagram of the low-temperature pulverizing module structure of an integrated device for low-temperature ultrafine pulverization and grading of konjac proposed in this invention;

[0027] Figure 6 This is a schematic diagram of the continuous feeding module structure of an integrated device for low-temperature ultrafine pulverization and grading of konjac proposed in this invention.

[0028] Figure 7 This is a schematic diagram of the discharge stage control component of an integrated device for low-temperature ultrafine grinding and grading of konjac proposed in this invention.

[0029] In the diagram: 1. Base plate; 2. Low-temperature pulverizing chamber; 3. Air-screen crushing chamber; 4. Feeding cylinder; 5. Cold chamber conveying pipe; 6. Screening and transfer pipe; 7. Primary screening and crushing module; 701. Vertical plate; 702. Cover plate; 703. Feeding pipe; 704. Frame; 705. Crushing motor; 706. Crushing rod; 707. Feeding bin; 708. Air screen; 709. Air blower seat; 710. Air conveying pipe; 711. Air conveying interface; 712. Air conveying regulating valve; 8. Low-temperature pulverizing module; 801. Pulverizing chamber; 802. Rotary disc; 803. Pulverizing frame; 804. Retractable mounting port; 805. Crusher rod; 806. Spike; 807. Crusher motor; 9. Continuous feeding module; 901. Feed bin; 902. Shaft; 903. Spiral feeder blade; 904. Top bin; 905. Return pipe; 906. External pipe interface; 10. Feed inlet; 11. Discharge outlet; 12. Cooling air interface; 13. Support platform; 14. Discharge stage control component; 1401. Control box; 1402. Closed-end filter screen; 1403. Air guide pipe; 1404. Air guide regulating valve; 15. Stand; 16. Discharge motor. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0031] The konjac low-temperature ultrafine grinding and grading integrated device disclosed in this invention is mainly used in scenarios where current low-temperature grinders cannot achieve continuous and cyclic processing of konjac ultrafine powder.

[0032] Reference Figure 1-7 A device for integrated low-temperature ultrafine grinding and grading of konjac includes a base plate 1, a low-temperature grinding chamber 2, an air-screen crushing chamber 3, and a feeding cylinder 4. The low-temperature grinding chamber 2, the air-screen crushing chamber 3, and the feeding cylinder 4 are all located above the base plate 1. The air-screen crushing chamber 3 and the feeding cylinder 4 are located on opposite sides of the low-temperature grinding chamber 2. A cold-cavity conveying pipe 5 is provided between the low-temperature grinding chamber 2 and the air-screen crushing chamber 3. A screening and transfer pipe 6 is provided between the low-temperature grinding chamber 2 and the feeding cylinder 4. The device also includes:

[0033] The primary screening and crushing module 7 is set on the air screen crushing box 3, including a vertical plate 701, a cover plate 702 and an air supply pipe, for the primary crushing and feeding of konjac particles;

[0034] The low-temperature pulverizing module 8 is installed on the low-temperature pulverizing box 2 and includes a pulverizing chamber 801, a rotating disc 802 and multiple pulverizing racks 803 for ultra-fine pulverization of konjac powder.

[0035] The continuous feeding module 9 is installed on the feeding cylinder 4 and includes a feeding bin 901, a shaft 902 and a spiral feeding blade 903, which is used for feeding konjac ultrafine powder and cold air recirculation.

[0036] Specifically, the device adopts an integrated grading and crushing method. Konjac particles are initially crushed into powder, and then ultra-finely pulverized at low temperature into ultra-fine powder products. The entire process utilizes airflow to achieve feeding, discharging and screening. The process is continuous and can be cyclically carried out, effectively solving the drawback of needing to stop the machine to add material and improving the overall processing efficiency of konjac ultra-fine powder.

[0037] Reference Figure 1 , Figure 3 and Figure 4 In a preferred embodiment, the primary screening and crushing module 7 further includes a frame 704, which is located on the upper side of the base plate 1 and connected by bolts. A crushing motor 705 is bolted to the frame 704, and the output end of the crushing motor 705 is connected to a short shaft via a coupling. A vertical plate 701 is located inside the primary screening and crushing box and is rotatably connected via bearings. The other end of the short shaft passes through the primary screening and crushing box and is bolted to the vertical plate 701. The primary screening and crushing box is rotatably connected to the cover plate 702 via a hinge. Crushing rods 70 are provided on opposite sides of the vertical plate 701 and the cover plate 702. 6; The primary screening and crushing box is equipped with a feeding hopper 707 and an air inlet. The air inlet is equipped with an air screen 708. The air inlet of the primary screening and crushing box is connected to a blower seat 709 by bolts. The blower seat 709 is connected to the interior of the primary screening and crushing box. The feeding pipe 703 is located above the blower seat 709. The upper and lower ends of the feeding pipe 703 are connected to the cold cavity conveying pipe 5 and the primary screening and crushing box, respectively. The blower seat 709 is connected to an air supply pipe 710 by bolts. The other end of the air supply pipe 710 is connected to an air supply interface 711 by bolts. The air supply pipe 710 is equipped with an air supply regulating valve 712.

[0038] Specifically, the crushed particles are added through the feeding bin 707, and the crushing motor 705 drives the vertical disc 701 to rotate at high speed. The crushed particles are crushed into powder by the crushing rod 706 between the vertical disc 701 and the cover plate 702. The external blower is connected to the air supply interface 711, and the airflow is blown out from the air screen 708 through the air supply pipe 710. An airflow is formed in the sealed air screen crushing box 3. The airflow direction is: the air screen crushing box 3 flows through the feeding pipe 703 and enters the cold chamber conveying pipe 5. The crushed powder that meets the specifications enters the cold chamber conveying pipe 5 from the feeding pipe 703 along with the airflow.

[0039] In specific application scenarios, the primary screening and crushing module 7 is suitable for the initial crushing and powdering of konjac granules. The primary screening and crushing module 7 uses a high-speed rotating vertical disc 701. The disc 701 and the crushing rod 706 on the cover plate 702 achieve the crushing and powdering of granules. Combined with the air blowing method, the powder that meets the specifications is continuously fed into the low-temperature pulverizing box 2. This process achieves the effects of initial crushing, powder screening and continuous feeding, ensuring the continuity of konjac ultrafine powder production and improving the overall production efficiency. The screening of powder can be controlled by adjusting the air blowing rate: adjusting the air supply regulating valve 712 changes the air speed entering the air supply pipe 710, thereby controlling the air force entering the air screen crushing box 3. The greater the air force, the larger the powder particles entering the cold chamber conveying pipe 5, and vice versa.

[0040] Reference Figure 1 , Figure 3 and Figure 5 In a preferred embodiment, the low-temperature pulverizing chamber 2 is provided with a feed inlet 10 and a discharge outlet 11. The discharge outlet 11 is located below the screening and transfer pipe 6, and the feed inlet 10 is connected to the cold chamber conveying pipe 5 by bolts. The other end of the cold chamber conveying pipe 5 is connected to a cold air interface 12 by bolts. The lower side of the low-temperature pulverizing chamber 2 is connected to a support platform 13 by bolts, and the support platform 13 is located on the upper side of the base plate 1 by bolts.

[0041] Specifically, the cold air interface 12 of the cold cavity conveying pipe 5 is connected to an external refrigeration unit, and cold air is continuously fed into the cold cavity conveying pipe 5. The cold air is in a continuous flow state in the cold cavity conveying pipe 5, which facilitates the feeding operation of the crushed powder after primary screening. At the same time, the cold cavity conveying pipe 5 adopts the method of feeding the crushed powder with cold air, which can quickly cool the crushed powder during the feeding process, which is convenient for subsequent low temperature ultrafine grinding operation.

[0042] Reference Figure 1 and Figure 5In a preferred embodiment, the cryogenic pulverizing module 8 further includes multiple movable mounting ports 804, which are circumferentially distributed on the outer side of the rotary disc 802. The rotary disc 802 is located inside the cryogenic pulverizing chamber 2 and is rotatably connected by bearings. A pulverizing motor 807 is provided below the cryogenic pulverizing chamber 2. The pulverizing motor 807 is connected to the support platform 13 by bolts. The output end of the pulverizing motor 807 is connected to the rotary disc 802 by a coupling. Multiple pulverizing frames 803 are located inside the multiple movable mounting ports 804 and are rotatably connected by bearings. Multiple pulverizing rods 805 are provided on each of the multiple pulverizing frames 803, and each of the pulverizing rods 805 is provided with protrusions 806.

[0043] Specifically, the crushing motor 807 drives the rotating disc 802 to rotate at high speed, and the crushing rod 805 performs ultra-fine crushing on the powder in the crushing chamber 801; the airflow in the crushing chamber 801 will flow through the discharge port 11 into the screening and transfer pipe 6. This process will carry the ultra-fine powder that meets the specifications away from the crushing chamber 801 along with the airflow to achieve transfer and discharge.

[0044] In specific application scenarios, the cryogenic pulverizing module 8 is suitable for further pulverizing of powder in the cryogenic pulverizing chamber 2 to form ultrafine powder. Specifically, the cryogenic pulverizing module 8 uses a high-speed rotating disc 802 to drive the pulverizing rod 805 to perform ultrafine pulverization of the powder in the pulverizing chamber 801, thus processing the powder into ultrafine powder. At the same time, the airflow in the pulverizing chamber 801 is used to screen the ultrafine powder, achieving the screening and discharge of ultrafine powder. The pulverizing frame 803 is movably connected to the disc 802. During the rotational pulverization process, the impact of the airflow and the powder in the pulverizing chamber 801 changes its state, causing it to rotate around the disc 802 while also rotating on its own axis, further improving the contact with the powder in the chamber. The cold air flowing in the pulverizing chamber 801 forms an airflow, which suspends the powder and increases the contact effect between the powder and the pulverizing rod 805. The protrusions 806 provided on the pulverizing rod 805 can further enhance the pulverization effect.

[0045] Reference Figure 1 , Figure 2 and Figure 6 In a preferred embodiment, a support frame 15 is bolted to the outside of the feeding cylinder 4. The support frame 15 is bolted to the upper side of the base plate 1. A discharge motor 16 is provided at the top of the support frame 15, and a discharge stage control component 14 is provided between the screening and transfer pipe 6 and the low-temperature pulverizing box 2.

[0046] Reference Figure 1 and Figure 6In a preferred embodiment, the continuous feeding module 9 further includes a top chamber 904, which is located at the upper end of the feeding cylinder 4. The feeding chamber 901 is located at the lower end of the feeding cylinder 4. The shaft 902 is located inside the top chamber 904 and the feeding cylinder 4. The output end of the discharge motor 16 is connected to the top end of the shaft 902 through a coupling. The bolt feeding blade is located outside the shaft 902. A return pipe 905 is bolted to the top chamber 904. The lower end of the return pipe 905 is bolted to an external pipe interface 906.

[0047] Specifically, during the transfer of ultrafine powder: the upward airflow carries the ultrafine powder into the sieving and transfer pipe 6. By changing the air guide control valve, the airflow into the sieving and transfer pipe 6 can be controlled, thereby achieving the effect of controlling the sieving of ultrafine powder. That is, when the ultrafine powder particles are small, the airflow in the air guide pipe 1403 is increased, and the upward airflow in the sieving and transfer pipe 6 will be reduced accordingly, so that the airflow can only carry small ultrafine powder particles.

[0048] In specific application scenarios, the discharge-level control component 14 is suitable for controlling the particle size of the discharged ultrafine powder. That is, the discharge-level control component 14 uses the air guide control valve to control the airflow in the air guide pipe 1403, thereby changing the airflow size in the screening and transfer pipe 6 to achieve the discharge screening of ultrafine powder with different particle sizes; the control box 1401 forms a dual-path for the airflow in the low-temperature pulverizing box 2, and by changing the airflow size in one path, the two airflows are synchronously adjusted to achieve the screening effect of airflow discharge; the tapered filter screen 1402 can filter the ultrafine powder.

[0049] Reference Figure 1 , Figure 6 and Figure 7 In a preferred embodiment, the discharge stage control component 14 includes a control box 1401, which is bolted to the discharge port 11 of the low-temperature pulverizing box 2. The control box 1401 is connected to the screening and transfer pipe 6. A tapered filter screen 1402 is provided inside the control box 1401. The tapered filter screen 1402 is located between the outer wall of the screening and transfer pipe 6 and the inner wall of the control box 1401. An air guide pipe 1403 is bolted to the control box 1401. The other end of the air guide pipe 1403 is connected to the return pipe 905. An air guide regulating valve 1404 is provided on the air guide pipe 1403.

[0050] Specifically, the ultrafine powder enters the feeding cylinder 4 through the screening and transfer pipe 6. The discharge motor 16 drives the shaft 902 to rotate, and the spiral feeding blade 903 rotates continuously inside the feeding cylinder 4. The ultrafine powder, along with the cold air, impacts the spiral feeding blade 903. Due to the obstruction of the spiral feeding blade 903, the kinetic energy of the ultrafine powder is reduced after the impact. At the same time, the spiral feeding blade 903 located below the interface of the screening and transfer pipe 6 changes size, which hinders the flow of air. This causes the air to flow upwards into the top bin 904 and return to the external refrigeration unit through the return pipe 905. Meanwhile, the ultrafine powder in the feeding cylinder 4 is fed out along with the rotation of the spiral feeding blade 903.

[0051] In specific application scenarios, the continuous feeding module 9 is suitable for the feeding of ultrafine powder and the recirculation of cold air in the feeding cylinder 4. That is, the continuous feeding module 9 uses the spiral feeding blade 903 with varying specifications to continuously rotate in the feeding cylinder 4, so that solid and gas are separated in the cylinder, ultrafine powder falls and cold air flows upward, thereby realizing the feeding of ultrafine powder and the recirculation of cold air.

[0052] A method for integrating low-temperature ultrafine grinding and grading of konjac, using the aforementioned integrated low-temperature ultrafine grinding and grading device for konjac, includes the following steps:

[0053] Step 1: The konjac granules after low-temperature treatment are added to the air-screen crushing box 3 and subjected to preliminary crushing by the primary crushing module 7 (granules are added from the feeding bin 707, the crushing motor 705 drives the vertical disc 701 to rotate at high speed, and the granules are crushed into powder by the crushing rod 706 between the vertical disc 701 and the cover plate 702). The powder that meets the crushing specifications is conveyed into the cold chamber conveying pipe 5 (an external blower is connected to the air supply interface 711, and the airflow is blown out from the air screen 708 through the air supply pipe 710, forming an airflow in the sealed air-screen crushing box 3. The airflow direction is: the air-screen crushing box 3 flows through the feeding pipe 703 into the cold chamber conveying pipe 5, and the powder that meets the specifications enters the cold chamber conveying pipe 5 with the airflow from the feeding pipe 703). In the cold chamber conveying pipe 5, the powder is cooled and sent into the low-temperature pulverizing box 2 (the cold air interface 12 of the cold chamber conveying pipe 5 is connected to the external refrigeration unit, and cold air is continuously sent into the cold chamber conveying pipe 5).

[0054] Step 2: The powder is ultra-finely pulverized in the low-temperature pulverizing chamber 2 by the low-temperature pulverizing module 8 (the pulverizing motor 807 drives the rotating disc 802 to rotate at high speed, and the pulverizing rod 805 performs ultra-fine pulverization on the powder in the pulverizing chamber 801). The ultra-fine powder that meets the pulverization specifications is transferred and conveyed to the discharge cylinder 4 by the sieving and conveying pipe 6 (the airflow in the pulverizing chamber 801 will enter the sieving and conveying pipe 6 through the discharge port 11. This process will carry the ultra-fine powder that meets the specifications away from the pulverizing chamber 801 with the airflow to achieve transfer and discharge). During this process, part of the cold air is circulated back (during the ultra-fine powder transfer: the upward airflow carries the ultra-fine powder into the sieving and conveying pipe 6. By changing the air guide control valve, the airflow entering the sieving and conveying pipe 6 can be controlled, thereby achieving the effect of controlling the sieving of ultra-fine powder. That is, when the micro powder particles are small, the airflow in the air guide pipe 1403 is increased, and the upward airflow in the sieving and conveying pipe 6 will be reduced accordingly, so that the airflow can only carry small particles of ultra-fine powder).

[0055] Step 3: The ultrafine powder is assisted in feeding into the feeding cylinder 4 by the continuous feeding module 9 (the ultrafine powder enters the feeding cylinder 4 through the screening and transfer pipe 6, the discharge motor 16 drives the shaft 902 to rotate, and the spiral feeding blade 903 rotates continuously in the feeding cylinder 4. The ultrafine powder, along with the cold air, impacts the spiral feeding blade 903. Due to the obstruction of the spiral feeding blade 903, the kinetic energy of the ultrafine powder is reduced after the impact. At the same time, the spiral feeding blade 903 located below the interface of the screening and transfer pipe 6 changes size, which hinders the flow of air. The airflow enters the top chamber 904 in an upward flow manner and flows back to the external refrigeration unit through the return pipe 905. The ultrafine powder in the feeding cylinder 4 is fed along with the rotation of the spiral feeding blade 903). The cold air enters the return pipe 905 for recirculation.

[0056] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A device for integrated low-temperature ultrafine grinding and grading of konjac, comprising a base plate (1), a low-temperature grinding chamber (2), an air-screen crushing chamber (3), and a feeding cylinder (4), wherein the low-temperature grinding chamber (2), the air-screen crushing chamber (3), and the feeding cylinder (4) are all located above the base plate (1), the air-screen crushing chamber (3) and the feeding cylinder (4) are respectively located on both sides of the low-temperature grinding chamber (2), and a cold cavity conveying pipe (5) is provided between the low-temperature grinding chamber (2) and the air-screen crushing chamber (3), and a sieving and transferring pipe (6) is provided between the low-temperature grinding chamber (2) and the feeding cylinder (4), characterized in that, Also includes: The primary screening and crushing module (7) is set on the air screen crushing box (3), including a vertical plate (701), a cover plate (702) and an air supply pipe, for the primary crushing and feeding of konjac granules; The low-temperature pulverizing module (8) is set on the low-temperature pulverizing box (2) and includes a pulverizing chamber (801), a rotating disc (802) and multiple pulverizing racks (803) for ultra-fine pulverization of konjac powder; The continuous feeding module (9) is set on the feeding cylinder (4) and includes a feeding bin (901), a shaft (902) and a spiral feeding blade (903) for feeding konjac ultrafine powder and cold air recirculation; A discharge stage control component (14) is provided between the screening and transfer pipe (6) and the low temperature pulverizing box (2), and the spiral feed blade (903) below the interface of the screening and transfer pipe (6) varies in size; The continuous feeding module (9) also includes a top bin (904), which is located at the upper end of the feeding cylinder (4), and a feeding bin (901) is located at the lower end of the feeding cylinder (4). The shaft (902) is located inside the top bin (904) and the feeding cylinder (4). The output end of the discharge motor (16) is connected to the top end of the shaft (902) through a coupling. The bolt feeding blade is located outside the shaft (902). A return pipe (905) is fixedly connected to the top bin (904), and an external pipe interface (906) is fixedly connected to the lower end of the return pipe (905). The discharge stage control component (14) includes a control box (1401), which is fixedly connected to the discharge port (11) of the low temperature pulverizing box (2). The control box (1401) is connected to the screening and transfer pipe (6). A closed-end filter screen (1402) is provided inside the control box (1401). The closed-end filter screen (1402) is located between the outer wall of the screening and transfer pipe (6) and the inner wall of the control box (1401). A gas guide pipe (1403) is fixedly connected to the control box (1401). The other end of the gas guide pipe (1403) is connected to the return pipe (905). A gas guide regulating valve (1404) is provided on the gas guide pipe (1403).

2. The konjac low-temperature ultrafine pulverization and grading integrated device according to claim 1, characterized in that, The primary screening and crushing module (7) also includes a frame (704), which is fixedly connected to the upper side of the base plate (1). A crushing motor (705) is fixedly connected to the frame (704). The output end of the crushing motor (705) is connected to a short shaft through a coupling. The vertical plate (701) is movably connected inside the primary screening and crushing box. The other end of the short shaft passes through the primary screening and crushing box and is fixedly connected to the vertical plate (701). The primary screening and crushing box is movably connected to the cover plate (702). Crushing rods (706) are provided on opposite sides of the vertical plate (701) and the cover plate (702).

3. The konjac low-temperature ultrafine pulverization and grading integrated device according to claim 2, characterized in that, The primary screening and crushing box is provided with a feeding bin (707) and an air inlet. An air screen (708) is provided on the air inlet. A blower seat (709) is fixedly connected to the air inlet of the primary screening and crushing box. The blower seat (709) is connected to the interior of the primary screening and crushing box. The feeding pipe (703) is located above the blower seat (709). The upper and lower ends of the feeding pipe (703) are connected to the cold cavity conveying pipe (5) and the primary screening and crushing box, respectively. An air supply pipe (710) is fixedly connected to the blower seat (709). An air supply interface (711) is fixedly connected to the other end of the air supply pipe (710). An air supply regulating valve (712) is provided on the air supply pipe (710).

4. The konjac low-temperature ultrafine pulverization and grading integrated device according to claim 3, characterized in that, The low-temperature pulverizing box (2) is provided with a feed inlet (10) and a discharge outlet (11). The discharge outlet (11) is located below the sieving and transfer pipe (6), and the feed inlet (10) is fixedly connected to the cold cavity conveying pipe (5). The other end of the cold cavity conveying pipe (5) is fixedly connected to a cold air interface (12).

5. The konjac low-temperature ultrafine pulverization and grading integrated device according to claim 4, characterized in that, The lower side of the low-temperature pulverizing box (2) is fixedly connected to a support platform (13), and the support platform (13) is fixedly connected to the upper side of the base plate (1).

6. The konjac low-temperature ultrafine pulverization and grading integrated device according to claim 5, characterized in that, The low-temperature pulverizing module (8) also includes multiple movable mounting ports (804), which are equidistantly distributed on the outer side of the rotary table (802). The rotary table (802) is movably connected inside the low-temperature pulverizing box (2). A pulverizing motor (807) is provided below the low-temperature pulverizing box (2). The pulverizing motor (807) is fixedly connected to the support platform (13). The output end of the pulverizing motor (807) is connected to the rotary table (802) through a coupling. Multiple pulverizing frames (803) are movably connected inside the multiple movable mounting ports (804). Multiple pulverizing rods (805) are provided on each of the multiple pulverizing frames (803), and each of the pulverizing rods (805) is provided with a protrusion (806).

7. The konjac low-temperature ultrafine pulverization and grading integrated device according to claim 6, characterized in that, The outer side of the feed cylinder (4) is fixedly connected to a stand (15), which is located on the upper side of the base plate (1). The top of the stand (15) is equipped with a discharge motor (16).

8. A method for integrating low-temperature ultrafine grinding and grading of konjac, using an integrated device for low-temperature ultrafine grinding and grading of konjac as described in claim 1, characterized in that, Includes the following steps: Step 1: The konjac granules after low-temperature treatment are added to the air screen crushing box (3) and initially crushed by the primary screen crushing module (7). The crushed powder that meets the crushing specifications is conveyed into the cold chamber conveying pipe (5) and cooled in the cold chamber conveying pipe (5) before being sent into the low-temperature pulverizing box (2). Step 2: The powder is ultra-finely pulverized by the low-temperature pulverizing module (8) in the low-temperature pulverizing box (2). The ultra-fine powder that meets the pulverization specifications is transferred and conveyed to the feeding cylinder (4) by the screening and transfer pipe (6). During this process, part of the cold air is circulated back. Step 3: The ultrafine powder is fed into the feeding cylinder (4) by the auxiliary feeding module (9), and the cold air enters the return pipe (905) for return circulation.

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