Centrifugal screen for starch production

Abstract

The utility model belongs to the field of centrifugal screens, and particularly relates to a centrifugal screen for starch production, which comprises a shell, an end cover is fixedly mounted at the right end of the shell, a feed hopper is fixedly connected in the right end of the end cover, a main shaft is mounted in the shell through a bearing, and a blanking mechanism is arranged on the main shaft. A reamer is fixedly connected to the right portion of the outer side of the main shaft, and a screening hopper is installed in the shell through a bearing. The center gear, the inner gear ring, the planetary gear and other structures are additionally arranged in the shell, the centrifugal frame is driven by the main shaft to rotate, the centrifugal frame can provide centrifugal force for starch, and the main shaft can drive the screening hopper to rotate through meshing among the center gear, the planetary gear and the inner gear ring. The centrifugal force of the starch can be increased again in the rotating process of the screening hopper, the speed of the starch passing through the screening hopper can be effectively increased under the effect of the double centrifugal force, and therefore the screening efficiency of the starch can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal screens, in particular to a centrifugal screen for starch production. Background Art

[0002] Starch can adsorb many organic and inorganic compounds. Amylose and amylopectin have different adsorption properties due to their different molecular forms. Amylose molecules have good molecular stretchability in solution. In the process of starch production, it is necessary to use a centrifugal sieve to screen out the lumps and impurities in the starch. According to the patent authorization announcement number: CN210674482U, a centrifugal sieve for starch production is proposed. This utility model relates to the technical field of starch processing equipment, and in particular to a centrifugal sieve for starch production. The utility model separates impurities in starch slurry by secondary screening and separation, specifically: a screw conveyor with a screen on the bottom surface is connected to the bottom end of a circular sieve barrel, and the slurry separated by the rotation of the circular sieve barrel will pass through the several fan-shaped leakage parts at the bottom end of the circular material barrel into the interior of the screw conveyor, and then through the rotating pushing function of the shaftless auger;

[0003] However, the centrifugal screen in the prior art uses the centrifugal frame to drive the starch to generate centrifugal force to centrifuge the starch during use, which is inefficient. In addition, when adding raw materials to the inside of the feed hopper during the centrifugation of the starch, the viscosity between the starches easily causes the feed hopper to be blocked, affecting the screening of the starch. Therefore, there is a need to improve the prior art. Utility Model Content

[0004] The utility model aims to provide a centrifugal screen for starch production, which solves the problems of poor centrifugal screening efficiency and easy clogging of the feed hopper.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a centrifugal screen for starch production, comprising an outer shell, an end cover is fixedly installed on the right end of the outer shell, a feed hopper is fixedly connected to the right end of the end cover, a main shaft is installed inside the outer shell through a bearing, a blanking mechanism is provided on the main shaft, a reamer is fixedly connected to the right outer side of the main shaft, a screening bucket is installed inside the outer shell through a bearing, a centrifugal frame is fixedly connected to the left middle part of the outer side of the main shaft, a motor is fixedly installed on the left end of the outer shell, a shaft seal is installed inside the screening bucket, a central gear is fixedly connected to the left outer side of the main shaft and located on the outside of the screening bucket, a planetary carrier is installed on the left end of the screening bucket, a planetary gear is installed on the outer side of the connecting shaft of the planetary carrier through a bearing, and an inner gear ring is fixedly connected to the left end of the screening bucket.

[0006] Preferably, the reamer contacts the inner wall of the end cover, and the reamer contacts the feed hopper, and the reamer can feed the interior of the screening hopper.

[0007] Preferably, the centrifugal frame contacts the inner wall of the screening bucket, the output shaft of the motor is fixedly connected to the main shaft, and the centrifugal frame can centrifugally stir the starch inside the screening bucket.

[0008] Preferably, a fine material outlet is installed at the lower end of the shell, and a coarse material outlet is installed at the right part of the lower end of the shell, and the fine material outlet can discharge starch of complex specifications.

[0009] Preferably, the shaft seal contacts the main shaft, the inner gear ring meshes with the planetary gears, and the planetary gears mesh with the central gear. The shaft seal can seal the connection between the main shaft and the screening bucket.

[0010] Preferably, the blanking mechanism includes a fixed plate, which is fixedly connected to the middle of the vertical surface of the right end of the main shaft, a connecting nail is slidably connected to the inside of the fixed plate, a hammer is fixedly connected to the upper end of the connecting nail, a spring is provided on the outside of the connecting nail, and a support frame is installed on the outside of the main shaft through a bearing, and the support frame is fixedly connected to the inner wall of the feed hopper, and the hammer can hit the inner wall of the feed hopper during rotation, causing the feed hopper to vibrate.

[0011] Preferably, one end of the spring is fixedly connected to the connecting pin, and the other end of the spring is fixedly connected to the fixing plate, and the spring can drive the connecting pin to automatically reset through elastic force.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model adds structures such as a central gear, an inner gear ring and a planetary gear inside the shell, and the main shaft drives the centrifugal frame to rotate. The centrifugal frame can provide centrifugal force to the starch. The main shaft can drive the screening bucket to rotate through the meshing between the central gear, the planetary gear and the inner gear ring. The screening bucket can increase the centrifugal force of the starch again during the rotation process. The starch can effectively speed up the speed of passing through the screening bucket under the action of double centrifugal force, thereby improving the screening efficiency of the starch.

[0014] 2. The utility model adds a fixing plate, a connecting nail and a hammer head on the main shaft, which can drive the hammer head to rotate during the rotation of the main shaft. The hammer head can repeatedly hammer the inside of the feed hopper during the rotation, thereby causing the feed hopper to vibrate, thereby dispersing the blocked starch and effectively avoiding blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0016] Figure 2 For the utility model Figure 1 Stereoscopic cutaway Figure 1 ;

[0017] Figure 3 For the utility model Figure 1 Stereoscopic cutaway Figure 2 ;

[0018] Figure 4 For the utility model Figure 2 A three-dimensional enlarged view of the main axis;

[0019] Figure 5 For the utility model Figure 2 A magnified view of the structure of part A;

[0020] Figure 6 For the utility model Figure 2 Enlarged view of the structure of part B.

[0021] In the figure: 1. outer shell; 2. end cover; 3. feed hopper; 4. main shaft; 5. blanking mechanism; 6. reamer; 7. screening bucket; 8. centrifugal frame; 9. motor; 10. fine material outlet; 11. coarse material outlet; 12. shaft seal; 13. center gear; 14. planetary carrier; 15. planetary gear; 16. inner gear ring; 51. fixing plate; 52. connecting pin; 53. hammer head; 54. spring; 55. support frame. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5A centrifugal screen for starch production comprises a shell 1, an end cover 2 is fixedly mounted on the right end of the shell 1, a feed hopper 3 is fixedly connected to the right end of the end cover 2, a main shaft 4 is mounted on the inside of the shell 1 through a bearing, a blanking mechanism 5 is arranged on the main shaft 4, a reamer 6 is fixedly connected to the right outer side of the main shaft 4, a screening bucket 7 is mounted on the inside of the shell 1 through a bearing, a centrifugal frame 8 is fixedly connected to the left middle part of the outer side of the main shaft 4, a motor 9 is fixedly mounted on the left end of the shell 1, a shaft seal 12 is mounted on the inside of the screening bucket 7, a central gear 13 is fixedly connected to the left outer side of the main shaft 4 and located on the outer side of the screening bucket 7, a planetary carrier 14 is mounted on the left end of the screening bucket 7 through a bearing, a planetary gear 15 is mounted on the outer side of the connecting shaft of the planetary carrier 14 through a bearing, and an inner gear ring 16 is fixedly connected to the left end of the screening bucket 7.

[0024] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 The reamer 6 contacts the inner wall of the end cover 2, the reamer 6 contacts the feed hopper 3, the reamer 6 can feed the inside of the screening bucket 7, the centrifugal frame 8 contacts the inner wall of the screening bucket 7, the output shaft of the motor 9 is fixedly connected to the main shaft 4, the centrifugal frame 8 can centrifugally stir the starch inside the screening bucket 7, the lower end of the outer shell 1 is equipped with a fine material outlet 10, and the right part of the lower end of the outer shell 1 is equipped with a coarse material outlet 11, the fine material outlet 10 can discharge starch of composite specifications, the shaft seal 12 contacts the main shaft 4, the inner gear ring 16 meshes with the planetary gear 15, the planetary gear 15 meshes with the center gear 13, and the shaft seal 12 can seal the connection between the main shaft 4 and the screening bucket 7.

[0025] See also Figure 1 , Figure 3 , Figure 6 The blanking mechanism 5 includes a fixed plate 51, a fixed plate 51 is fixedly connected to the middle of the vertical surface of the right end of the main shaft 4, a connecting nail 52 is slidably connected inside the fixed plate 51, a hammer 53 is fixedly connected to the upper end of the connecting nail 52, a spring 54 is arranged on the outside of the connecting nail 52, a support frame 55 is installed on the outside of the main shaft 4 through a bearing, the support frame 55 is fixedly connected to the inner wall of the feed hopper 3, the hammer 53 can hit the inner wall of the feed hopper 3 during rotation, so that the feed hopper 3 vibrates, one end of the spring 54 is fixedly connected to the connecting nail 52, and the other end of the spring 54 is fixedly connected to the fixed plate 51, and the spring 54 can drive the connecting nail 52 to automatically reset through elastic force.

[0026] The specific implementation process of the utility model is as follows: when in use, starch is put into the inside of the feed hopper 3, and then the motor 9 is started, the motor 9 drives the main shaft 4 to rotate, and the main shaft 4 drives the reamer 6 to rotate during the rotation process, and the reamer 6 can transport the starch to the inside of the screening bucket 7 by rotating, and the starch enters the inside of the screening bucket 7. The main shaft 4 can drive the centrifugal frame 8 to rotate, and the centrifugal frame 8 can push the starch during the rotation process so that the starch generates centrifugal force, and the starch can pass through the screening bucket 7 through the centrifugal force and be discharged through the fine material outlet 10. At the same time, the main shaft 4 drives the central gear 13 to rotate, and the central gear 13 drives the inner gear ring 16 to rotate through the planetary gear 15, and the inner gear ring 16 can drive the screening bucket 7 to rotate, and the screening bucket 7 can further increase the centrifugal force of the starch during the rotation process, which can effectively improve the screening efficiency of the starch;

[0027] During the centrifugal process of starch, the main shaft 4 drives the connecting nail 52 to rotate through the fixed plate 51. The connecting nail 52 can drive the hammer head 53 to hit the inner wall of the feed hopper 3 during the rotation. During the impact, the feed hopper 3 can vibrate, thereby effectively avoiding blockage of the feed hopper 3.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A centrifugal screen for starch production, comprising a housing (1), characterized in that: An end cover (2) is fixedly mounted on the right end of the housing (1), a feed hopper (3) is fixedly connected to the right end of the end cover (2), a main shaft (4) is mounted inside the housing (1) via a bearing, a material dropping mechanism (5) is provided on the main shaft (4), a reamer (6) is fixedly connected to the right outer side of the main shaft (4), a screening bucket (7) is mounted inside the housing (1) via a bearing, a centrifugal frame (8) is fixedly connected to the left middle part of the outer side of the main shaft (4), a motor (9) is fixedly mounted on the left end of the housing (1), a shaft seal (12) is mounted inside the screening bucket (7), a central gear (13) is fixedly connected to the left outer side of the main shaft (4) and located outside the screening bucket (7), a planetary carrier (14) is mounted on the left end of the screening bucket (7) via a bearing, a planetary gear (15) is mounted on the outer side of the connecting shaft of the planetary carrier (14) via a bearing, and an inner gear ring (16) is fixedly connected to the left end of the screening bucket (7).

2. A centrifugal sieve for starch production according to claim 1, characterized in that: The reamer (6) contacts the inner wall of the end cover (2), and the reamer (6) contacts the feed hopper (3).

3. A centrifugal sieve for starch production according to claim 1, characterized in that: The centrifugal frame (8) is in contact with the inner wall of the screening bucket (7), and the output shaft of the motor (9) is fixedly connected to the main shaft (4).

4. A centrifugal sieve for starch production according to claim 1, characterized in that: A fine material outlet (10) is installed at the lower end of the housing (1), and a coarse material outlet (11) is installed at the right portion of the lower end of the housing (1).

5. A centrifugal sieve for starch production according to claim 1, characterized in that: The shaft seal (12) is in contact with the main shaft (4), the inner gear ring (16) is meshed with the planetary gear (15), and the planetary gear (15) is meshed with the central gear (13).

6. A centrifugal sieve for starch production according to claim 1, characterized in that: The blanking mechanism (5) comprises a fixed plate (51), the middle part of the vertical surface of the right end of the main shaft (4) is fixedly connected to the fixed plate (51), the interior of the fixed plate (51) is slidably connected to a connecting nail (52), the upper end of the connecting nail (52) is fixedly connected to a hammer head (53), a spring (54) is arranged on the outside of the connecting nail (52), and a support frame (55) is installed on the outside of the main shaft (4) through a bearing, and the support frame (55) is fixedly connected to the inner wall of the feed hopper (3).

7. A centrifugal sieve for starch production according to claim 6, characterized in that: One end of the spring (54) is fixedly connected to the connecting pin (52), and the other end of the spring (54) is fixedly connected to the fixing plate (51).

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