Cyclone stirring conical cylinder hysteresis type starch drying and pushing device

Abstract

The utility model relates to a whirlwind stirring conical cylinder hysteresis type starch drying and pushing device which comprises a mixing bin and a feeding bin coaxially installed at the lower end opening of the mixing bin, the transverse size of the feeding bin is larger than that of the mixing bin, and a conical inner cylinder is coaxially arranged at the lower end opening of the mixing bin; the conical inner barrel extends into the feeding bin and extends out of a lower port of the feeding bin, the lower port of the feeding bin is coaxially connected with a conical outer barrel, the conical outer barrel is coaxially sleeved outside the conical inner barrel, a flow guide channel is formed between the conical outer barrel and the conical inner barrel, a seat plate is arranged at the lower port of the conical outer barrel, and a crushing mechanism is arranged in the conical inner barrel; according to the device, a feeding structure with an inner conical barrel and an outer conical barrel which are sleeved with each other is adopted, hot air and starch enter the feeding bin, flow downwards into the outer conical barrel when encountering resistance and then enter the inner conical barrel upwards for auxiliary crushing, the drying flowing speed of the starch is delayed, the crushing time of the starch passing through the crushing mechanism is prolonged, and the crushing effect is improved; and the drying uniformity is ensured.

Description

Technical Field

[0001] This utility model relates to the field of modified starch production, and in particular to a cyclone stirring cone type delayed starch drying and pushing device. Background Technology

[0002] Currently, modified starch is usually dried using airflow, which has the advantages of fast drying speed and low energy consumption. However, in actual production applications, the dehydrated wet starch tends to clump together, resulting in large particles and incomplete drying, which affects product quality.

[0003] The utility model patent with application number 2023232283954 proposes an auxiliary airflow drying device for starch drying. This device is equipped with a pulverizing component consisting of fan blades and pulverizing toothed blades installed in the mixing chamber. This component can assist in pulverizing the wet material entering the mixing chamber, effectively avoiding the formation of large particles. In addition, the fan blades have an auxiliary air supply effect, which improves the conveying speed and mixing effect of hot air and starch. However, in actual production applications, if the hot air conveying speed is too fast, the residence time of starch in the lower feed chamber will be reduced, resulting in the starch passing through the pulverizing blades too quickly and the pulverizing time will be shortened, which is not conducive to achieving the best pulverizing effect and needs further optimization. Utility Model Content

[0004] To address the aforementioned problems, this invention proposes a cyclone stirring cone type delayed starch drying and pushing device.

[0005] The technical solution of this utility model is: a cyclone stirring cone-type delayed starch drying and pushing device, including a mixing chamber and a feeding chamber coaxially installed at the lower port of the mixing chamber. Both the mixing chamber and the feeding chamber are cylindrical. An S-shaped airflow conveying pipe is provided at the upper end of the mixing chamber. The lateral dimension of the feeding chamber is larger than that of the mixing chamber. A conical inner cylinder is coaxially provided at the lower port of the mixing chamber. The conical inner cylinder extends into the feeding chamber and extends out from the lower port of the feeding chamber. A certain gap is provided between the conical inner cylinder and the lower port of the feeding chamber. A conical outer cylinder is coaxially connected to the lower port of the feeding chamber. The overall length of the conical outer cylinder is smaller than the overall length of the conical inner cylinder. The conical outer cylinder is coaxially sleeved on the outside of the conical inner cylinder, and a flow guiding channel is formed between the two. A seat plate is provided at the lower port of the conical outer cylinder. A crushing mechanism is provided inside the conical inner cylinder.

[0006] Preferably, the side wall of the feed hopper is provided with a tangential pipe head, the cross-section of which is square, and the port of the tangential pipe head is connected to the feed pipe through a flange.

[0007] Preferably, the crushing mechanism includes a geared motor and a crushing rod. The geared motor is mounted on the bottom surface of the base plate. The main shaft of the crushing rod is coaxially arranged inside the conical inner cylinder. The upper end of the crushing rod is close to the lower port of the mixing chamber. Several toothed rods are evenly distributed on the outer side of the main shaft. Multiple sets of toothed rods are arranged along the axial direction. Adjacent sets of toothed rods are staggered. The lower end of the main shaft is coaxially and fixedly connected to the output shaft of the geared motor.

[0008] Preferably, a support bushing is provided at the center of the upper surface of the seat plate, and an annular seat is provided on the bottom surface of the support bushing and is fixedly connected to the seat plate through the annular seat. The lower end of the crushing rod is rotatably fitted inside the support bushing.

[0009] Preferably, the lower end of the conical inner cylinder is provided with cylindrical segment A, and the lower end of the conical outer cylinder is provided with cylindrical segment B, the size of cylindrical segment B being larger than the size of cylindrical segment A.

[0010] Preferably, the conical inner cylinder is connected to the lower port of the mixing chamber via a disc flange, and the seat plate is connected to the lower port of the conical outer cylinder via a disc flange. The disc flange is densely and evenly distributed with circular holes, and the upper and lower circular holes are fixedly connected by bolts.

[0011] Preferably, the lower end of the conical inner cylinder is close to the seat plate, so that the cross-section of the guide channel is L-shaped.

[0012] The beneficial technical effects of this utility model are:

[0013] (1) The device adopts a feeding structure with inner and outer conical cylinders nested together. After hot air and starch enter the feeding hopper, they will flow downward into the outer conical cylinder when they encounter resistance, and then enter the inner conical cylinder upward for auxiliary crushing. This slows down the drying flow rate of starch, increases the crushing time of starch through the crushing mechanism, improves the crushing effect, and ensures the uniformity of drying.

[0014] (2) The tangential tube head designed for this device allows starch to spirally enter along the tangential inner wall of the feed hopper and spiral into the guide channel. During this process, the starch will collide violently to produce a crushing effect, reducing the burden on the crushing mechanism. The combination of the two ensures that the starch is thoroughly crushed and dried by airflow, further improving the drying effect. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0016] Figure 2 yes Figure 1 A schematic diagram of the AA-direction cross-section structure;

[0017] Figure 3 yes Figure 2 Schematic diagram of the BB-direction cross-section structure;

[0018] Figure 4 A three-dimensional structural diagram of the feeding hopper and crushing mechanism;

[0019] Figure 5 This is a three-dimensional structural diagram of the feed hopper;

[0020] Figure 6 This is a schematic diagram of the three-dimensional structure of the mixing chamber.

[0021] In the diagram, 1. Mixing bin, 11. Conical inner cylinder, 2. Feed bin, 21. Conical outer cylinder, 22. Seat plate, 23. Tangential pipe head, 24. Feed pipe, 31. Gear motor, 32. Crushing rod, 321. Toothed rod, 33. Support bushing, 41. Disc flange, 42. Cylindrical section A, 43. Cylindrical section B, 5. Guide channel. Detailed Implementation

[0022] Example 1, see appendix Figure 1-6 A cyclone-stirring cone-type delayed starch drying and pushing device includes a mixing chamber 1 and a feeding chamber 2 coaxially installed at the lower port of the mixing chamber. The lateral dimension of the feeding chamber is larger than that of the mixing chamber 1, increasing the feeding, mixing, and crushing space. A conical inner cylinder 11 is coaxially provided at the lower port of the mixing chamber 1, extending into the feeding chamber 2 and extending out from the lower port of the feeding chamber. The conical inner cylinder 11 is entirely fitted inside the feeding chamber 2. A conical outer cylinder 21 is coaxially connected to the lower port of the feeding chamber 2, and the conical outer cylinder is coaxially fitted inside the conical inner cylinder 1. An external guide channel 5 is formed between the feed hopper 2 and the outer conical inner cylinder 11. The drying airflow and starch enter the guide channel 5 from the feed hopper 2 downwards. After reaching the lower end of the guide channel, they enter from the lower port of the conical inner cylinder 11. The lower port of the conical inner cylinder 11 is close to the seat plate 22, making the cross-section of the guide channel 5 L-shaped. The lower port of the conical outer cylinder 21 is equipped with the seat plate 22. A pulverizing mechanism is installed inside the conical inner cylinder 11. After the starch flows downwards and slows down, it is pulverized by this mechanism, increasing the pulverizing time of the starch and improving the pulverizing effect.

[0023] The side wall of the feeding hopper 2 is provided with a tangential pipe head 23. The port of the tangential pipe head is connected to the feeding pipe 24 through a flange. The tangential pipe head 23 allows starch and airflow to spirally enter along the tangential inner side wall of the feeding hopper 2 and spiral into the guide channel 5. During this process, the starch will collide violently to produce a crushing effect, reducing the burden on the crushing mechanism. The combination of the two ensures that the starch is thoroughly crushed and dried by airflow.

[0024] The lower end of the conical inner cylinder 11 is provided with a cylindrical section A 42, and the lower end of the conical outer cylinder 21 is provided with a cylindrical section B 43. The cylindrical sections serve to narrow the opening and slow down the airflow into the conical cylinder.

[0025] The conical inner cylinder 11 is connected to the lower port of the mixing chamber 1 via a disc flange 41, and the seat plate 22 is connected to the lower port of the conical outer cylinder 21 via a disc flange 41, which facilitates assembly, disassembly and maintenance.

[0026] The operation of the pushing device in this embodiment is as follows: the drying airflow and starch enter the feeding hopper 2 tangentially from the feeding pipe 24. After entering the hopper, the tangential force causes the starch and airflow to spirally mix in the hopper. The starch will collide violently to carry out primary crushing. After the hot air and starch are resisted by the conical inner cylinder 11 in the feeding hopper 2, they will flow downward and enter the conical outer cylinder 21 through the guide channel 5. Then they will enter upward into the conical inner cylinder 11 and contact the crushing mechanism for auxiliary crushing. This feeding structure slows down the drying flow rate of the starch, increases the crushing time of the starch through the crushing mechanism, and improves the crushing effect.

[0027] Example 2, see appendix Figure 2-4 This embodiment is basically the same as Embodiment 1, except that: the crushing mechanism includes a reduction motor 31 and a crushing rod 32. The reduction motor is installed on the bottom surface of the base plate 22. The main shaft of the crushing rod is coaxially arranged inside the conical inner cylinder 11. Several toothed rods 321 are evenly distributed on the outer side of the main shaft. The upper toothed rods are close to the upper port of the conical inner cylinder 11, and the lower toothed rods 321 are close to the lower port of the conical inner cylinder 11. The lower end of the main shaft is coaxially fixedly connected to the output shaft of the reduction motor 31. Alternatively, the main shaft can be driven to rotate by the motor driving large and small pulleys to achieve deceleration. A support bushing 33 is provided at the center of the upper surface of the base plate 22. The support bushing 33 provides rotational support for the main shaft and improves the rotational crushing stability of the crushing rod 32. The lower end of the crushing rod 32 is rotatably fitted inside the support bushing 33.

Claims

1. A cyclone stirring cone type delayed starch drying and pushing device, characterized in that: The device includes a mixing chamber and a feeding chamber coaxially mounted at the lower port of the mixing chamber. The lateral dimension of the feeding chamber is larger than that of the mixing chamber. A conical inner cylinder is coaxially provided at the lower port of the mixing chamber. The conical inner cylinder extends into the feeding chamber and extends out from the lower port of the feeding chamber. A conical outer cylinder is coaxially connected to the lower port of the feeding chamber. The conical outer cylinder is coaxially sleeved on the outside of the conical inner cylinder, and a flow channel is formed between the two. A seat plate is provided at the lower port of the conical outer cylinder. A crushing mechanism is provided inside the conical inner cylinder.

2. The cyclone stirring cone type delayed starch drying and pushing device according to claim 1, characterized in that: The side wall of the feed hopper is provided with a tangential pipe head, and the port of the tangential pipe head is connected to the feed pipe through a flange.

3. The cyclone stirring cone type delayed starch drying and pushing device according to claim 1, characterized in that: The crushing mechanism includes a geared motor and a crushing rod. The geared motor is mounted on the bottom surface of the base plate. The main shaft of the crushing rod is coaxially arranged inside the conical inner cylinder. Several toothed rods are evenly distributed on the outer side of the main shaft. The lower end of the main shaft is coaxially and fixedly connected to the output shaft of the geared motor.

4. The cyclone stirring cone type delayed starch drying and pushing device according to claim 3, characterized in that: A support bushing is provided at the center of the upper surface of the seat plate, and the lower end of the crushing rod is rotatably fitted inside the support bushing.

5. The cyclone stirring cone type delayed starch drying and pushing device according to claim 1, characterized in that: The lower end of the conical inner cylinder is provided with cylindrical section A, and the lower end of the conical outer cylinder is provided with cylindrical section B.

6. The cyclone stirring cone type delayed starch drying and pushing device according to claim 1, characterized in that: The conical inner cylinder is connected to the lower port of the mixing chamber via a disc flange, and the seat plate is connected to the lower port of the conical outer cylinder via a disc flange.

7. The cyclone stirring cone type delayed starch drying and pushing device according to claim 1, characterized in that: The lower end of the conical inner cylinder is close to the seat plate, making the cross-section of the flow channel L-shaped.

Images