Centrifugal screen for separating starch from fibers

Abstract

The utility model belongs to the technical field of screening equipment, and particularly relates to a centrifugal screen for separating starch and fiber, which comprises a shell, a screen drum and a driving mechanism, an inner cavity with an opening at the top is arranged in the shell, the screen drum is rotatably connected in the inner cavity, and the driving mechanism for driving the screen drum to rotate is arranged on one side of the shell. A top cover is arranged at the top of the shell, a sealing pressing ring matched with the top of the screen drum is arranged at the bottom of the top cover, and a supporting rotating disc is arranged between the sealing pressing ring and the top cover; a water injection pipe is arranged on the top cover, and a water drainage pipe is arranged on the shell. Compared with the prior art, the centrifugal screen adopts a washing mode and is matched with the centrifugal screen with a high rotating speed, starch and water in pea fibers are screened out through centrifugal force, and then the starch water is subjected to precipitation and drying treatment after being recycled, so that high-purity pea fibers and pea starch are obtained, and the product quality is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of screening equipment, in particular to a centrifugal screen for separating starch and fiber. Background Art

[0002] Pea fiber, made from peas, contains both soluble and insoluble dietary fiber, an essential nutrient for the human body. Existing pea processing methods, however, yield low fiber purity after washing alone, with a high starch content. Furthermore, the fiber retains a high moisture content after being squeezed, impacting the quality of the finished fiber product. Therefore, there is a significant market demand for a centrifugal sieve suitable for separating fibers and further removing moisture. Summary of the Invention

[0003] In view of the above-mentioned deficiencies in the prior art, the present invention provides a centrifugal screen suitable for separating fibers and capable of further removing moisture, so as to solve the above-mentioned problems.

[0004] The utility model discloses a centrifugal screen for separating starch and fiber, comprising an outer shell, a screen drum and a driving mechanism, wherein an inner cavity with a top opening is provided in the outer shell, a rotatably connected screen drum is provided in the inner cavity, a driving mechanism for driving the screen drum to rotate is provided on one side of the outer shell, a top cover is provided on the top of the outer shell, a sealing pressure ring that cooperates with the top of the screen drum is provided on the bottom of the top cover, and a supporting turntable is provided between the sealing pressure ring and the top cover; a water injection pipe is provided on the top cover, and a drainage pipe is provided on the outer shell.

[0005] Furthermore, two symmetrical telescopic rods are provided on the outer shell, and a bracket rotatably connected to the screen drum is provided on the telescopic end of the telescopic rod. A circle of flushing nozzles is provided on the inner wall of the inner cavity, and a water inlet pipe connected to the flushing nozzle is provided on the outer shell.

[0006] Furthermore, a transmission shaft connected to the driving mechanism is provided at the bottom of the shell, a telescopic shaft is sleeved on the top of the transmission shaft, a stretching spring is provided between the telescopic shaft and the transmission shaft, a circle of axial slide groove is provided on the circumference of the transmission shaft, a slider that cooperates with the slide groove and extends out of the slide groove is provided on the telescopic shaft, and a disc is sleeved on the slider; a scraper that cooperates with the bottom of the inner cavity is provided on the transmission shaft, and the scraper is provided with a connecting disc that cooperates with the disc, and the symmetrical ends of the connecting disc and the disc are provided with matching end face teeth; a circle of splines is provided on the circumference of the top of the telescopic shaft and is chamfered, and a spline groove that cooperates with the telescopic shaft is provided at the bottom of the screen drum.

[0007] Furthermore, the driving mechanism is a motor, and a synchronous belt transmission connection is provided between the output shaft of the motor and the transmission shaft.

[0008] Furthermore, a support bearing is provided between the bracket and the screen drum.

[0009] Furthermore, a conical guide platform is provided at the bottom of the inner cavity with the axis as the center.

[0010] Furthermore, a handle is provided on the top cover.

[0011] Furthermore, the top cover is hinged to one side of the shell, and a locking mechanism is provided on the other side.

[0012] Furthermore, pulleys that cooperate with the synchronous belt are provided on the output shaft and the transmission shaft of the motor.

[0013] Compared with the existing technology, this centrifugal screen adopts a washing method and is combined with a high-speed centrifugal screen to screen out the starch and water in the pea fiber through centrifugal force, and then recovers the starch water, precipitates it and dries it, thereby obtaining high-purity pea fiber and pea starch, thereby improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front cross-sectional view of the utility model;

[0015] Figure 2 for Figure 1 A magnified view of the local detail A;

[0016] Figure 3 It is a bottom sectional view of the transmission shaft;

[0017] Figure 4 It is a top view of the utility model.

[0018] In the figure: 1. Outer shell; 101. Inner cavity; 102. Drain pipe; 103. Telescopic rod; 104. Bracket; 105. Flushing nozzle; 106. Water inlet pipe; 2. Screen drum; 3. Driving mechanism; 4. Top cover; 401. Sealing pressure ring; 402. Support turntable; 403. Water injection pipe; 404. Handle; 5. Transmission shaft; 501. Telescopic shaft; 502. Opening spring; 503. Slide groove; 504. Slider; 505. Disc; 506. Scraper; 507. Connecting disc; 508. End face gear; 509. Spline groove; 6. Synchronous belt; 7. Support bearing; 8. Guide platform; 9. Locking mechanism. DETAILED DESCRIPTION

[0019] In order to better understand the present invention, Figures 1 to 4 The embodiments of the present invention will be explained in detail.

[0020] It should be noted that the directions “front, back, left, right, up, down” mentioned in the text are all based on Figure 1 The directions of “front, back, left, right, up and down” are used as the reference.

[0021] See also Figures 1 to 4 The utility model discloses a centrifugal screen for separating starch and fiber, comprising a shell 1, a screen drum 2 and a driving mechanism 3. The shell 1 is provided with an inner cavity 101 with a top opening, and a rotatably connected screen drum 2 is provided in the inner cavity 101. A driving mechanism 3 for driving the screen drum 2 to rotate is provided on one side of the shell 1. A top cover 4 is provided on the top of the shell 1, and a sealing pressure ring 401 (made of elastic material, such as rubber) is provided at the bottom of the top cover 4 to cooperate with the top of the screen drum 2. A supporting turntable 402 is provided between the sealing pressure ring 401 and the top cover 4; the top cover 4 is hinged to one side of the shell 1, and a locking mechanism 9 is provided on the other side of the top cover 4 for locking the top cover 4 with the shell 1. In order to facilitate the opening and closing of the top cover 4, a handle 404 is provided on the top cover 4. A water injection pipe 403 is provided on the top cover 4, and the outlet of the water injection pipe 403 is located in the middle of the sealing pressure ring 401 and is provided with a plurality of branch pipes. A drainage pipe 102 is provided on the shell 1. The water injection pipe 403 and the drainage pipe 102 are connected to the washing water pipeline and the recovery pipeline respectively.

[0022] Considering that the outer wall of the screen cylinder 2 will be partially blocked by pea fibers after use, if it is not cleaned in time, the fibers will adhere more firmly after drying, thus affecting the screening effect of the screen cylinder 2. In order to avoid pea fibers blocking the screen holes, Figure 1 and Figure 2 As shown in FIG, the housing 1 is provided with two symmetrical telescopic rods 103. The telescopic ends of the telescopic rods 103 are provided with brackets 104 that are rotatably connected to the screen drum 2. A support bearing 7 is provided between the brackets 104 and the screen drum 2. A circle of flushing nozzles 105 are provided on the inner wall of the inner cavity 101. The housing 1 is provided with a water inlet pipe 106 connected to the flushing nozzles 105. The water inlet pipe 106 is connected to the washing water pipeline. Water is sprayed from the flushing nozzles 105 to the outer wall of the screen drum 2 through the water inlet pipe 106, flushing the fibers from the outer wall of the sieve holes into the screen drum 2, thereby preventing clogging of the sieve holes. In addition, each time the raw material is soaked in water, the two telescopic rods 103 can be extended and retracted in the open state to achieve the up and down swinging of the screen drum 2 in the washing water, so that the washing water outside the screen drum 2 enters the interior through the sieve holes, diluting the water with high starch content inside, so that the washing water can separate the starch in the raw material as much as possible.

[0023] Since starch will precipitate in water, the high concentration of starch at the bottom of the inner cavity 101 cannot be discharged from the drain pipe 102 along with the washing water, and continues to adhere to the bottom of the inner cavity 101. In order to solve this problem, a structure for cleaning the bottom of the inner cavity 101 is added, such as Figures 1 to 2As shown in , a transmission shaft 5 is provided at the bottom of the housing 1, and the driving mechanism 3 is a motor. A synchronous belt 6 is provided between the output shaft of the motor and the transmission shaft 5 for transmission connection. Pulleys that match the synchronous belt 6 are provided on both the output shaft of the motor and the transmission shaft 5 (since pulleys are a mature technology used in conjunction with synchronous belts, it is easy for technicians in this field to understand and implement them, so the pulleys in the accompanying drawings are drawn as one with the transmission shaft and output shaft of the motor respectively). A telescopic shaft 501 is sleeved on the top of the transmission shaft 5, and a spreading spring 502 is provided between the telescopic shaft 501 and the transmission shaft 5; as shown in FIG. Figure 2 and 3 As shown in the figure, the transmission shaft 5 is circumferentially provided with a circle of axial slide grooves 503, the telescopic shaft 501 is provided with a slider 504 that cooperates with the slide groove 503 and extends out of the slide groove 503, and the slider 504 is sleeved with a disc 505; the transmission shaft 5 is provided with a scraper 506 that cooperates with the bottom of the inner cavity 101, and the scraper 506 is provided with a connecting disk 507 that cooperates with the disc 505, and the symmetrical ends of the connecting disk 507 and the disc 505 are provided with matching end face teeth 508; the top end of the telescopic shaft 501 is circumferentially provided with a circle of splines and chamfers, and the bottom of the screen drum 2 is provided with a spline groove 509 that cooperates with the telescopic shaft 501.

[0024] When the telescopic rod 103 is in the retracted state, the spline groove 509 at the bottom of the screen drum 2 is inserted into the top end of the telescopic shaft 501 and is transmission connected. In this state, the driving mechanism 3 can drive the screen drum 2 to rotate; the telescopic shaft 501 is pressed downward by the spline groove 509, and the telescopic shaft 501 contracts downward on the transmission shaft 5 and compresses the support spring 502, so that the disc 505 connected to the telescopic shaft 501 is separated from the connecting disc 507 of the scraper 506, and the end face teeth 508 at the upper and lower ends are no longer engaged, so that the scraper 506 is released from the transmission connection state with the transmission shaft 5.

[0025] In order to facilitate drainage, a conical guide platform 8 is provided at the bottom of the inner cavity 101 with the axis as the center, and the guide platform 8 tilts the bottom of the inner cavity 101 toward the drain pipe 102.

[0026] The following are the steps for using this utility model: First, open the top cover 4 and pour the raw material (pea fiber from which starch has not been separated) into the sieve drum 2. Then, water is injected into the sieve drum 2 and the inner cavity 101 through the water inlet pipe 403, submerging the raw material with clean water. Simultaneously, the two telescopic rods 103 are controlled to extend and retract, allowing the washing water to completely permeate the raw material within the sieve drum 2. Washing water from the outside of the sieve drum 2 enters through the sieve holes and mixes with the washing water inside. Next, close and lock the top cover 4, then activate the drive mechanism 3 to rotate the sieve drum 2 at high speed, using centrifugal force to filter the starch-containing washing water from the pea fiber. Finally, the starch-containing washing water is discharged through the drain pipe 102, where it is precipitated and dried to produce high-purity pea starch. The high-purity pea fiber within the sieve drum 2, dehydrated by high-speed rotation, is then sucked away by a strong suction pipe (the pipe of the suction device) for recovery.

[0027] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication between two elements, it can be a direct connection, or it can be an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0028] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A centrifugal sieve for separating starch from fiber, characterized by: The invention comprises a shell (1), a sieve drum (2) and a driving mechanism (3); the shell (1) is provided with an inner cavity (101) with a top opening, the inner cavity (101) is provided with a rotatably connected sieve drum (2), one side of the shell (1) is provided with a driving mechanism (3) for driving the sieve drum (2) to rotate, the top of the shell (1) is provided with a top cover (4), the bottom of the top cover (4) is provided with a sealing pressure ring (401) that cooperates with the top of the sieve drum (2), and a supporting turntable (402) is provided between the sealing pressure ring (401) and the top cover (4); a water injection pipe (403) is provided on the top cover (4), and a drainage pipe (102) is provided on the shell (1).

2. A centrifugal sieve for separating starch from fiber as claimed in claim 1, characterized in that: Two symmetrical telescopic rods (103) are provided on the housing (1); a bracket (104) rotatably connected to the screen drum (2) is provided on the telescopic end of the telescopic rod (103); a circle of flushing nozzles (105) is provided on the inner wall of the inner cavity (101); and a water inlet pipe (106) connected to the flushing nozzles (105) is provided on the housing (1).

3. A centrifugal sieve for separating starch from fiber as claimed in claim 2, characterized in that: The bottom of the housing (1) is provided with a transmission shaft (5) connected to the driving mechanism (3), the top end of the transmission shaft (5) is sleeved with a telescopic shaft (501), a stretching spring (502) is provided between the telescopic shaft (501) and the transmission shaft (5), a circle of axial sliding grooves (503) are provided on the circumference of the transmission shaft (5), the telescopic shaft (501) is provided with a slider (504) that matches the sliding groove (503) and extends out of the sliding groove (503), and the slider (504) is sleeved with a circular The transmission shaft (5) is provided with a scraper (506) that matches the bottom of the inner cavity (101), and the scraper (506) is provided with a connecting disk (507) that matches the circular disk (505), and the symmetrical ends of the connecting disk (507) and the circular disk (505) are both provided with matching end face teeth (508); the top end of the telescopic shaft (501) is circumferentially provided with a circle of splines and chamfers, and the bottom of the screen drum (2) is provided with a spline groove (509) that matches the telescopic shaft (501).

4. A centrifugal sieve for separating starch from fiber as claimed in claim 3, characterized in that: The driving mechanism (3) is a motor, and a synchronous belt (6) is provided between the output shaft of the motor and the transmission shaft (5) for transmission connection.

5. A centrifugal sieve for separating starch from fiber as claimed in claim 2, characterized in that: A support bearing (7) is provided between the bracket (104) and the screen drum (2).

6. A centrifugal sieve for separating starch from fiber as claimed in claim 1, characterized in that: A conical flow guide platform (8) is provided at the bottom of the inner cavity (101) with the axis as the center.

7. A centrifugal sieve for separating starch from fiber as claimed in claim 1, characterized in that: The top cover (4) is provided with a handle (404).

8. A centrifugal sieve for separating starch from fiber as claimed in claim 1, characterized in that: The top cover (4) is hinged to one side of the outer shell (1), and a locking mechanism (9) is provided on the other side of the top cover (4).

9. A centrifugal sieve for separating starch from fiber as claimed in claim 4, characterized in that: The output shaft of the motor and the transmission shaft (5) are both provided with pulleys that match the synchronous belt (6).

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