Drying device for corn starch processing
By combining a screw feeder, screw discharger, rolling roller, and mixing blades, the problems of uneven corn starch conveying and moisture absorption and re-moistening after drying are solved, achieving efficient and uniform starch processing and cooling, and improving the processing efficiency and quality of corn starch.
Patent Information
- Application Number
- CN202520584040.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-31
AI Technical Summary
In the current corn starch processing process, uneven conveying of wet starch raw materials leads to clumping, affecting conveying efficiency and product quality. Furthermore, after drying, the starch is prone to absorbing moisture and becoming damp again, which also affects product quality.
A screw feeder and a screw unloader are used in conjunction with a drive motor to crush and break up clumps of starch using crushing rollers and mixing blades, and the dried starch is rapidly cooled by a cooling mechanism.
It achieves uniform starch conveying and efficient drying, prevents blockages, ensures product quality is not affected, avoids moisture absorption and reabsorption, and improves processing efficiency and product quality.
Smart Images

Figure CN223939832U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grain processing equipment technology, and more specifically, to a drying device for corn starch processing. Background Technology
[0002] Corn starch is a white to slightly yellowish powder extracted from corn, mainly used in cooking and baking. Drying is a crucial step in corn starch processing, directly affecting its moisture content, quality, and storage stability.
[0003] Based on the above, the inventors have discovered that wet starch raw materials to be dried are prone to clumping due to uneven moisture content during the process of being transported into existing drying devices. These clumps not only easily affect the normal transport of raw materials, leading to a reduction in corn starch processing efficiency, but also cause incomplete drying of the raw materials, affecting product quality. At the same time, existing drying devices usually discharge corn starch directly after drying. If the temperature of the discharged corn starch is too high and it is not cooled in time, the starch is prone to absorbing moisture and becoming damp again, which in turn affects product quality. Therefore, in view of this, the inventors have researched and improved the existing structure to provide a drying device for corn starch processing, aiming to achieve a more practical purpose. Utility Model Content
[0004] 1. Technical problems to be solved
[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a drying device for corn starch processing. It can utilize a screw feeder and a screw unloader to ensure smooth conveying of starch raw materials and prevent blockage of the inlet and outlet. In addition, the drive motor, in conjunction with the rotating shaft, enables the crushing roller to crush the clumps of starch and further disperse it through the first and second stirring blades, so that it can be dried evenly. At the same time, a cooling mechanism is added to quickly cool the dried starch, preventing the corn starch from absorbing moisture and regaining moisture, thus ensuring product quality.
[0006] 2. Technical Solution
[0007] To solve the above problems, the present invention adopts the following technical solution.
[0008] A drying device for corn starch processing includes a drying cylinder and a sealing cover fixed to the top of the drying cylinder. A support frame is fixedly connected inside the drying cylinder. A rotating shaft is rotatably connected between the sealing cover and the support frame via a bearing. A grinding roller, multiple stirring blades (first and second) are fixedly connected to the outer periphery of the rotating shaft. The multiple stirring blades (first) are disposed between the support frame and the grinding roller. The stirring blades (second) are fixed to the bottom end of the rotating shaft and movably connected to the bottom inner wall of the drying cylinder. A feed inlet is provided at the top of the sealing cover, and a discharge outlet is provided at the bottom of the drying cylinder. A screw feeder is provided at the bottom of the discharge outlet, and a cooling mechanism is provided at the discharge port of the screw feeder.
[0009] Furthermore, the outer periphery of the rolling roller is provided with several protrusions, and the outer side of the protrusions is movably connected to the inner wall of the drying cylinder.
[0010] Furthermore, a heating cavity is provided inside the side wall of the drying cylinder, and a heater is installed inside the heating cavity.
[0011] Furthermore, a drive motor is installed at the center of the top of the sealing cover, and the output shaft of the drive motor is connected to the top of the rotating shaft via a coupling.
[0012] Furthermore, a screw feeder is installed at the top of the feed inlet.
[0013] Furthermore, the cooling mechanism includes a hopper fixed at the discharge port of the screw feeder, and multiple cooling plates are installed at the bottom of the hopper.
[0014] Furthermore, an isolation cover is fixedly connected to the bottom edge of the hopper, and the cooling element is located inside the isolation cover. Multiple heat exhaust fans are installed at the bottom of the isolation cover.
[0015] 3. Beneficial effects
[0016] Compared with existing technologies, the advantages of this utility model are:
[0017] (1) In this scheme, by setting up a screw feeder and a screw unloader, the feeding and unloading of raw materials can be uniform and smooth, preventing blockage at the inlet and outlet, and greatly improving the drying efficiency of corn starch. At the same time, after the raw materials enter the drying cylinder, the clumps of corn starch raw materials will be stuck in the gap between the drying cylinder and the roller. Driven by the drive motor, the rotating shaft drives the roller and the first and second stirring blades to rotate. The roller crushes the clumps of starch, while the first and second stirring blades disperse the starch raw materials falling from the gap, so that they can be dried evenly, greatly improving the drying effect of corn starch.
[0018] (2) In this solution, by adding a cooling mechanism, the dried corn starch is discharged from the screw feeder into the hopper, and the bottom of the hopper is cooled by the cooling plate. The principle of heat conduction is used to quickly cool the corn starch, so as to avoid the phenomenon of the corn starch absorbing moisture and becoming damp due to excessive temperature, thus ensuring the quality of the product. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0020] Figure 2 This is a schematic diagram of the planar structure of the present invention;
[0021] Figure 3 This is a schematic diagram of the internal structure of the drying cylinder of this utility model;
[0022] Figure 4 This is a schematic diagram showing the location and structure of the cooling mechanism of this utility model.
[0023] Explanation of the labels in the diagram:
[0024] 1. Drying drum;
[0025] 2. Sealing cap;
[0026] 3. Support frame;
[0027] 4. Rotating shaft;
[0028] 5. Roller rollers;
[0029] 6. Stirring blade one;
[0030] 7. Stirring blade two;
[0031] 8. Feed inlet;
[0032] 9. Discharge port;
[0033] 10. Screw feeder;
[0034] 11. Cooling mechanism; 1101. Feed hopper; 1102. Cooling element;
[0035] 12. Bumps;
[0036] 13. Heating the cavity;
[0037] 14. Heater;
[0038] 15. Drive motor;
[0039] 16. Screw feeder;
[0040] 17. Isolation shield;
[0041] 18. Exhaust fan. Detailed Implementation
[0042] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0043] Example:
[0044] Please see Figures 1-4 A drying device for corn starch processing includes a drying cylinder 1 and a sealing cover 2 fixed to the top of the drying cylinder 1. A support frame 3 is fixedly connected inside the drying cylinder 1. A rotating shaft 4 is rotatably connected between the sealing cover 2 and the support frame 3 via a bearing. A rolling roller 5, multiple stirring blades 6 and stirring blades 7 are fixedly connected to the outer periphery of the rotating shaft 4. The multiple stirring blades 6 are disposed between the support frame 3 and the rolling roller 5. The stirring blades 7 are fixed to the bottom end of the rotating shaft 4 and are movably connected to the bottom inner wall of the drying cylinder 1. A feed inlet 8 is provided at the top of the sealing cover 2, and a discharge outlet 9 is provided at the bottom of the drying cylinder 1. A screw feeder 10 is provided at the bottom of the discharge outlet 9. A cooling mechanism 11 is provided at the discharge port of the screw feeder 10. The discharge port of the screw feeder 10 has a porous structure, which can disperse the corn starch and improve the cooling effect.
[0045] See Figure 3 The outer periphery of the rolling roller 5 is provided with several protrusions 12, and the outer side of the protrusions 12 is movably connected to the inner side wall of the drying cylinder 1.
[0046] See Figure 3 A heating cavity 13 is provided inside the side wall of the drying cylinder 1, and a heater 14 is provided inside the heating cavity 13.
[0047] See Figure 1 A drive motor 15 is installed at the center of the top of the sealing cover 2, and the output shaft of the drive motor 15 is connected to the top of the rotating shaft 4 via a coupling.
[0048] See Figure 1 A screw feeder 16 is installed at the top of the feed inlet 8.
[0049] See Figure 4 The cooling mechanism 11 includes a hopper 1101 fixed at the discharge port of the screw feeder 10. Multiple cooling plates 1102 are installed at the bottom of the hopper 1101, and the cooling side of the cooling plates 1102 is installed on the bottom surface of the hopper 1101.
[0050] See Figure 4An isolation cover 17 is fixedly connected to the bottom edge of the hopper 1101, and the cooling chip 1102 is located inside the isolation cover 17. Multiple heat dissipation fans 18 are installed at the bottom of the isolation cover 17 to dissipate heat on the heating side of the cooling chip 1102.
[0051] In use: Inspect the equipment, connect the power supply, start the heater 14, and heat the drying cylinder 1 to the required temperature. Use the screw feeder 16 to convey the wet corn starch into the drying cylinder 1, where it falls to the top of the grinding roller 5. At this time, the dispersed corn starch falls to the bottom of the drying cylinder 1 through the gap between the drying cylinder 1 and the grinding roller 5, while the clumps of corn starch raw material will get stuck in the gap between the drying cylinder 1 and the grinding roller 5. Start the drive motor 15, which drives the rotating shaft 4 to rotate the grinding roller 5, stirring blade 6, and stirring blade 7, thus grinding the corn starch. Roller 5, in conjunction with protrusion 12 and the inner wall of drying cylinder 1, crushes the clumped starch, while stirring blade 6 and stirring blade 7 disperse the starch raw material, ensuring uniform drying and greatly improving the drying effect of corn starch. After drying, the corn starch is discharged from the discharge port of screw feeder 10 into hopper 1101. Cooling plate 1102 is used to cool the bottom of hopper 1101. By utilizing the principle of heat conduction, the corn starch is rapidly cooled to prevent the corn starch from absorbing moisture and becoming damp due to excessive temperature, thus ensuring product quality.
[0052] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0053] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0054] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.
Claims
1. A drying device for corn starch processing, comprising a drying cylinder (1) and a sealing cover (2) fixed to the top of the drying cylinder (1), characterized in that: The drying cylinder (1) is fixedly connected to a support frame (3). The sealing cover (2) and the support frame (3) are rotatably connected by a rotating shaft (4) through a bearing. The outer periphery of the rotating shaft (4) is fixedly connected to a rolling roller (5), multiple stirring blades one (6) and stirring blades two (7). Multiple stirring blades one (6) are arranged between the support frame (3) and the rolling roller (5). The stirring blades two (7) are fixed to the bottom end of the rotating shaft (4) and are movably connected to the bottom inner wall of the drying cylinder (1). The top of the sealing cover (2) is provided with a feed inlet (8). The bottom of the drying cylinder (1) is provided with a discharge outlet (9). The bottom of the discharge outlet (9) is provided with a screw feeder (10). The discharge outlet of the screw feeder (10) is provided with a cooling mechanism (11).
2. The drying apparatus for corn starch processing according to claim 1, characterized in that: The outer periphery of the rolling roller (5) is provided with several protrusions (12), and the outer side of the protrusions (12) is movably connected to the inner side wall of the drying cylinder (1).
3. The drying apparatus for corn starch processing according to claim 1, characterized in that: The drying cylinder (1) has a heating cavity (13) inside its side wall, and a heater (14) is installed inside the heating cavity (13).
4. The drying apparatus for corn starch processing according to claim 1, characterized in that: A drive motor (15) is installed at the top center of the sealing cover (2), and the output shaft of the drive motor (15) is connected to the top of the rotating shaft (4) via a coupling.
5. A drying apparatus for corn starch processing according to claim 1, characterized in that: A screw feeder (16) is installed at the top of the feed inlet (8).
6. The drying apparatus for corn starch processing according to claim 1, characterized in that: The cooling mechanism (11) includes a hopper (1101) fixed at the discharge port of the screw feeder (10), and a plurality of cooling plates (1102) are installed at the bottom of the hopper (1101).
7. A drying apparatus for corn starch processing according to claim 6, characterized in that: An isolation cover (17) is fixedly connected to the bottom edge of the hopper (1101), and the cooling chip (1102) is located inside the isolation cover (17). Multiple heat exhaust fans (18) are installed at the bottom of the isolation cover (17).