Starch dehydration device for starch production

Abstract

The utility model discloses a starch dehydration device for starch production, which comprises a stock tank, bearing seats and a rotary drum, the bearing seats are fixed on two sides of the upper end of the stock tank through bolts, the rotary drum is rotatably connected onto the bearing seats, a stirring and homogenizing mechanism is arranged on the stock tank, a guide chute is fixed at the upper end of the side wall of the stock tank, and the guide chute is connected with the rotary drum. The material guiding groove is connected with the abutting material scraping mechanism, one end of the abutting material scraping mechanism abuts against the rotary drum, the upper end of the slurry groove is fixedly connected with a top protection plate, the rotary drum is arranged between the top protection plate and the slurry groove, a low-temperature drying air box is fixed to the top protection plate, and the material stirring and uniformizing mechanism is composed of a stirring auger and a stirring motor. And the abutting and scraping mechanism comprises a guide rail, a sliding block, a reset spring and a scraping plate, the middle of the side end of the rotary drum is connected with a negative pressure drainage pipe, and the end of the negative pressure drainage pipe is rotationally connected with a rotary connector. The utility model belongs to the technical field of corn starch dehydration, and particularly relates to a starch dehydration device for starch production.

Description

Technical Field

[0001] This utility model belongs to the field of corn starch dehydration technology, specifically referring to a starch dehydration device for starch production. Background Technology

[0002] The washed starch milk cannot be dried directly; it needs to be dehydrated first to remove most of the water before drying. Unlike the production process of ordinary starch, corn starch has higher purity and no impurities, so the quality requirements are relatively higher. Existing starch dehydration devices, such as the vacuum dehydration device for potato starch production disclosed in application number CN202221926632.7, connect one end of a tension spring to a scraper plate, which can ensure that the scraper plate and the dehydration drum always remain in close contact, ensuring the starch removal effect.

[0003] However, in practical applications, due to the higher purity requirements of corn starch, vacuum dehydration is mostly adopted. Existing starch vacuum dehydrators have poor scraping effect when using scrapers to remove starch from the filter cloth, and starch residue is easily left on the surface, affecting production efficiency. Moreover, over time, starch slurry in the slurry tank is prone to sedimentation, and the uneven distribution of starch inside also affects the efficiency and effect of starch dehydration. In particular, moisture remains in the starch after scraping. Therefore, we propose a starch dehydration device for starch production to solve the above problems. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a starch dehydration device for starch production, which effectively solves the problem of poor starch cleaning effect on the surface of filter cloth and the impact on production efficiency of the existing vacuum dehydrator for starch production, while also solving the problem of starch milk easily settling in the slurry tank after long-term dehydration processing.

[0005] The technical solution adopted by this utility model is as follows: The starch dewatering device for starch production proposed by this utility model includes a slurry tank, a bearing seat and a rotating drum. The bearing seat is fixed to both sides of the upper end of the slurry tank by bolts. The rotating drum is rotatably connected to the bearing seat. A stirring and equalizing mechanism is provided on the slurry tank. A guide trough is fixed to the upper end of the side wall of the slurry tank. A pressing and scraping mechanism is connected to the guide trough, and one end of the pressing and scraping mechanism is pressed against the rotating drum.

[0006] As an improvement to this solution, a top guard plate is fixedly connected to the upper end of the slurry tank, and a rotating drum is located between the top guard plate and the slurry tank. A low-temperature drying air box is fixed on the top guard plate and is located above the material guide trough. A feed pipe is connected to the upper end of the connection between the top guard plate and the slurry tank. The feed pipe passes through the top guard plate and is located at the bottom of the slurry tank. A ventilation plate is provided at the connection between the top guard plate and the low-temperature drying air box.

[0007] As an improvement to this solution, the mixing and material equalization mechanism consists of a mixing auger and a mixing motor. The mixing auger is rotatably connected to the inner wall of the slurry tank and there are two sets of them. The mixing motor is fixed to the side wall of the slurry tank and the output shaft of the mixing motor is connected to one set of mixing augers. The other end of the mixing auger passes through the slurry tank and is fixed with a synchronous pulley. The two sets of synchronous pulleys are connected by a synchronous belt.

[0008] As an improvement to this solution, the material-clamping scraping mechanism includes a guide rail, a slider, a return spring, and a scraper. The guide rail is fixed to the side wall of the material guide trough, the slider is slidably connected to the guide rail, the return spring is located between the inner wall of the guide rail and the slider, and the scraper is fixed to the return spring with one side in close contact with the side wall of the drum.

[0009] As an improvement to this solution, a negative pressure drain pipe is connected to the middle of the side end of the drum, and a rotating joint is rotatably connected to the end of the negative pressure drain pipe. Shaft seals are provided between the negative pressure drain pipe, the top guard plate, the stirring auger, and the slurry tank.

[0010] As an improvement to this solution, the side wall of the drum is wrapped with filter cloth, and several sets of water inlet holes are evenly distributed along the circumference of the side wall of the drum.

[0011] As an improvement to this solution, a driven gear is fixed on the side wall of the negative pressure drainage pipe, a reduction motor is provided on the side wall of the slurry tank, and a driving gear is provided on the output shaft of the reduction motor, and the driving gear meshes with the driven gear.

[0012] As an improvement to this solution, the guide rail is arranged in a U-shape, and the ventilation plate is a thin plate with an arc-shaped cross-section, and has several rectangular through holes evenly distributed on it.

[0013] The beneficial effects of this utility model by adopting the above structure are as follows:

[0014] 1. It is equipped with a scraping mechanism. The return spring can make the scraper fit tightly against the filter cloth on the surface of the drum, ensuring the scraping effect. In addition, with the low temperature drying box set above, it can further dry the starch while ensuring that the starch is completely removed, which facilitates subsequent drying processing and improves the overall production efficiency.

[0015] 2. The stirring and equalization mechanism can stir the starch water in the slurry tank, making the starch water flow and preventing the starch from settling to the bottom of the slurry tank, which would reduce the amount of starch that the drum can adsorb, thus helping to ensure the efficiency of corn starch dehydration. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a starch dehydration device for starch production proposed in this utility model.

[0017] Figure 2 This is a cross-sectional view of a starch dehydration device for starch production proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of a starch dehydration device for starch production proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the top protective plate in this embodiment;

[0020] Figure 5 for Figure 1 A magnified view of part A in the diagram.

[0021] The components are as follows: 1. Slurry tank; 2. Bearing seat; 3. Rotary drum; 4. Mixing and equalizing mechanism; 5. Guide chute; 6. Pressing and scraping mechanism; 7. Top guard plate; 8. Low temperature drying air box; 9. Feed pipe; 10. Ventilation plate; 11. Agitator; 12. Synchronous pulley; 13. Synchronous belt; 14. Agitator motor; 15. Guide rail; 16. Slider; 17. Return spring; 18. Scraper; 19. Negative pressure drain pipe; 20. Rotary joint; 21. Shaft seal; 22. Filter cloth; 23. Water inlet; 24. Driven gear; 25. Drive gear; 26. Gearbox.

[0022] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof. Detailed Implementation

[0023] 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.

[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the present invention proposes a starch dehydration device for starch production, including a slurry tank 1, a bearing seat 2, and a rotating drum 3. The bearing seat 2 is fixed to both sides of the upper end of the slurry tank 1 by bolts. The rotating drum 3 is rotatably connected to the bearing seat 2. The slurry tank 1 is provided with a stirring and equalizing mechanism 4. A guide trough 5 is fixed to the upper end of the side wall of the slurry tank 1. A pressing and scraping mechanism 6 is connected to the guide trough 5, and one end of the pressing and scraping mechanism 6 is pressed against the rotating drum 3.

[0025] like Figure 1 and Figure 3 As shown, a top guard plate 7 is fixedly connected to the upper end of the slurry tank 1, and a rotating drum 3 is located between the top guard plate 7 and the slurry tank 1. A low-temperature drying air box 8 is fixed on the top guard plate 7 and is located above the material guide trough 5. A feed pipe 9 is connected to the upper end of the connection between the top guard plate 7 and the slurry tank 1. The feed pipe 9 passes through the top guard plate 7 and is located at the bottom of the slurry tank 1. A ventilation plate 10 is provided at the connection between the top guard plate 7 and the low-temperature drying air box 8. The ventilation plate 10 is a thin plate with an arc-shaped cross section and several rectangular through holes are evenly distributed on it.

[0026] In order to prevent starch milk from settling and affecting the dehydration efficiency of corn starch, the mixing and equalization mechanism 4 consists of a mixing auger 11 and a mixing motor 14. The mixing auger 11 is rotatably connected to the inner wall of the slurry tank 1 and there are two sets. The mixing motor 14 is fixed to the side wall of the slurry tank 1 and the output shaft of the mixing motor 14 is connected to one set of mixing auger 11. The other end of the mixing auger 11 passes through the slurry tank 1 and is fixed with a synchronous pulley 12. The two sets of synchronous pulleys 12 are connected by a synchronous belt 13.

[0027] In order to thoroughly scrape the corn starch off the side wall of the drum 3, the scraping mechanism 6 includes a guide rail 15, a slider 16, a return spring 17, and a scraper 18. The guide rail 15 is fixed to the side wall of the guide trough 5 and is arranged in a U-shape. The slider 16 is slidably connected to the guide rail 15. The return spring 17 is located between the inner wall of the guide rail 15 and the slider 16. The scraper 18 is fixed to the return spring 17 and one side is in close contact with the side wall of the drum 3.

[0028] like Figure 2 and Figure 4 As shown, a negative pressure drain pipe 19 is connected to the middle of the side end of the drum 3. A rotating joint 20 is rotatably connected to the end of the negative pressure drain pipe 19. A shaft seal 21 is provided between the negative pressure drain pipe 19, the top guard plate 7, the stirring auger 11, and the slurry tank 1.

[0029] like Figure 4 As shown, the side wall of the drum 3 is wrapped with filter cloth 22, and several sets of water inlet holes 23 are evenly distributed along the circumference on the side wall of the drum 3.

[0030] like Figure 1 and Figure 4 As shown, a driven gear 24 is fixed on the side wall of the negative pressure drain pipe 19, and a reduction motor 26 is provided on the side wall of the slurry tank 1. A driving gear 25 is provided on the output shaft of the reduction motor 26, and the driving gear 25 meshes with the driven gear 24.

[0031] In practical use, the external negative pressure steam-water separator is connected to the negative pressure drain pipe 19 via the rotary joint 20. Starch slurry is added to the slurry tank 1 through the feed pipe 9. The geared motor 26 is turned on to drive the drive gear 25 to rotate. The driven gear 24, which meshes with the drive gear 25, drives the negative pressure drain pipe 19 and the drum 3, which is fixedly connected to the negative pressure drain pipe 19, to rotate on the bearing seat 2. The negative pressure in the drum 3 draws the starch slurry in the slurry tank 1 through the water inlet 23. Under the action of the filter cloth 22, the corn starch is filtered down and adheres to the side wall of the drum 3. As the drum 3 rotates, the starch slurry reaches the bottom of the low-temperature drying air box 8. At this time, the low-temperature drying air box 8 is turned on to generate cold air to further dry the corn starch and cause some of the starch to fall onto the scraper 18 and eventually slide out from the feed chute 5, while the remaining starch falls out under the scraper 18. During this process, the pre-pressure in the return spring 17 causes the slider 16 and the scraper 18 on it to adhere to the outer wall of the drum 3. In addition, during the entire dewatering process, the stirring motor 14 is turned on to drive the stirring auger 11 to rotate, so as to stir the starch milk in the slurry tank 1, accelerate the flow of starch milk, and thus achieve the appearance of sediment on the surface. The above is the entire process of using the starch dewatering device for starch production.

[0032] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A starch dewatering device for starch production, comprising a slurry tank (1), a bearing seat (2), and a rotating drum (3), wherein the bearing seat (2) is fixed to both sides of the upper end of the slurry tank (1) by bolts, and the rotating drum (3) is rotatably connected to the bearing seat (2), characterized in that: The slurry tank (1) is provided with a stirring and equalizing mechanism (4), and a guide trough (5) is fixed at the upper end of the side wall of the slurry tank (1). A pressing and scraping mechanism (6) is connected to the guide trough (5), and one end of the pressing and scraping mechanism (6) is pressed against the drum (3).

2. The starch dehydration device for starch production according to claim 1, characterized in that: A top guard plate (7) is fixedly connected to the upper end of the slurry tank (1), and a rotating drum (3) is located between the top guard plate (7) and the slurry tank (1). A low-temperature drying air box (8) is fixed on the top guard plate (7), and the low-temperature drying air box (8) is located above the guide trough (5). A feed pipe (9) is connected to the upper end of the connection between the top guard plate (7) and the slurry tank (1). The feed pipe (9) passes through the top guard plate (7) and is located at the bottom of the slurry tank (1). A ventilation plate (10) is provided at the connection between the top guard plate (7) and the low-temperature drying air box (8).

3. A starch dehydration device for starch production according to claim 2, characterized in that: The mixing and equalization mechanism (4) consists of a mixing auger (11) and a mixing motor (14). The mixing auger (11) is rotatably connected to the inner wall of the slurry tank (1) and there are two sets. The mixing motor (14) is fixed to the side wall of the slurry tank (1) and the output shaft of the mixing motor (14) is connected to one set of mixing augers (11). The other end of the mixing auger (11) passes through the slurry tank (1) and is fixed with a synchronous pulley (12). The two sets of synchronous pulleys (12) are connected by a synchronous belt (13).

4. A starch dehydration device for starch production according to claim 3, characterized in that: The material clamping and scraping mechanism (6) includes a guide rail (15), a slider (16), a return spring (17), and a scraper (18). The guide rail (15) is fixed on the side wall of the guide groove (5). The slider (16) is slidably connected to the guide rail (15). The return spring (17) is located between the inner wall of the guide rail (15) and the slider (16). The scraper (18) is fixed on the return spring (17) and one side is in close contact with the side wall of the drum (3).

5. A starch dehydration device for starch production according to claim 4, characterized in that: A negative pressure drain pipe (19) is connected to the middle of the side end of the drum (3), and a rotating joint (20) is rotatably connected to the end of the negative pressure drain pipe (19). A shaft seal (21) is provided between the negative pressure drain pipe (19), the top guard plate (7), the stirring auger (11), and the slurry tank (1).

6. A starch dehydration device for starch production according to claim 5, characterized in that: The side wall of the drum (3) is covered with filter cloth (22), and several sets of water inlet holes (23) are evenly distributed along the circumferential direction on the side wall of the drum (3).

7. A starch dehydration device for starch production according to claim 6, characterized in that: A driven gear (24) is fixed on the side wall of the negative pressure drain pipe (19), and a reduction motor (26) is provided on the side wall of the slurry tank (1). A driving gear (25) is provided on the output shaft of the reduction motor (26), and the driving gear (25) meshes with the driven gear (24).

8. A starch dehydration device for starch production according to claim 7, characterized in that: The guide rail (15) is arranged in a square shape, and the ventilation plate (10) is a thin plate with an arc-shaped cross section, and has several rectangular through holes evenly distributed on it.

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